WebSVN – wimsdev – Blame – /trunk/wims/src/Misc/canvasdraw/canvasdraw.c

Rev	Author	Line No.	Line
8299	schaersvoo	1	/*27/7/2013 version 0.01
7614	schaersvoo	2	"Inspired" by FLY program: http://martin.gleeson.com/fly
		3	*********************************************************************************
		4	* J.M. Evers 7/2013 *
		5	* This is all just amateur scriblings... So no copyrights. *
		6	* This source code file, and compiled objects derived from it, *
		7	* can be used and distributed without restriction, including for commercial use *
		8	* No warrenty whatsoever *
		9	*********************************************************************************
		10	*/
7848	bpr	11	#include "canvasdraw.h"
7614	schaersvoo	12
		13	/******************************************************************************
		14	** Internal Functions
		15	******************************************************************************/
		16	void add_to_buffer(char tmp); / add tmp_buffer to the buffer */
		17	void sync_input(FILE infile);/ proceed with inputfile */
11021	schaersvoo	18	void add_javascript_function(int js_function[], int canvas_root_id);
7614	schaersvoo	19	void reset();/* reset some global variables like "use_filled" , "use_dashed" */
		20	int get_token(FILE infile); / read next char until EOL*/
8225	bpr	21	/*
7614	schaersvoo	22	int x2px(double x);
		23	int y2px(double y);
8225	bpr	24	*/
7614	schaersvoo	25	double px2x(int x);
		26	double px2y(int y);
7906	schaersvoo	27	double get_real(FILE infile,int last); / read a value; calculation and symbols allowed */
7614	schaersvoo	28	char str_replace ( const char word, const char sub_word, const char rep_word );
		29	char get_color(FILE infile,int last); /* read hex-color or colorname -> hex */
7906	schaersvoo	30	char get_string(FILE infile,int last); /* get the string at the end of a command */
7614	schaersvoo	31	char get_string_argument(FILE infile,int last); /* the same, but with "comma" as separator */
		32	char convert_hex2rgb(char hexcolor);
8257	schaersvoo	33	void add_read_canvas(int canvas_root_id,int reply_format,int reply_precision);
7614	schaersvoo	34	void make_js_include(int canvas_root_id);
		35	void check_string_length(int length);/* checks if the length of string argument of command is correct */
8224	bpr	36	FILE *js_include_file;
7614	schaersvoo	37	FILE get_file(int line_number, char **filename);
		38	FILE infile; / will be stdin */
		39	/******************************************************************************
		40	** global
		41	******************************************************************************/
		42	int finished = FALSE;/* main variable for signalling the end of the fly-script ; if finished = 1 ; write to stdout or canvasz */
		43	int line_number = 1;/* used in canvas_error() ; keep track of line number in canvasdraw/fly - script */
		44	/* set some variables to avoid trouble (NaN) in case of syntax and other usage errors */
		45	int xsize = 320;
		46	int ysize = 320;
		47	double xmin = 0.0;
		48	double xmax = 320.0;
		49	double ymin = 0.0;
		50	double ymax = 320.0;
11893	schaersvoo	51	double tmax = 0;
		52	double tmin = 0;
7614	schaersvoo	53	/* flag to indicate parsing of line status */
8224	bpr	54	int done = FALSE;
7614	schaersvoo	55	int type; /* eg command number */
		56	int onclick = 0;/* 0 = noninteractive ; 1 = onclick ; 2 = draggable*/
8097	schaersvoo	57	int slider = 0;/* slider=1 : x-values ; slider=2 : y-values;slider=3 angle values */
7785	schaersvoo	58	int use_affine = FALSE;
7614	schaersvoo	59	int use_rotate = FALSE;
11875	schaersvoo	60	int use_filled = 0; /* 0:no fill , 1:fill,2=grid?,3=hatch?,4=diamond?,5=dot?,6=image? */
7614	schaersvoo	61	int use_dashed = FALSE; /* dashing not natively supported in firefox , for now... */
8097	schaersvoo	62
7614	schaersvoo	63	char buffer[MAX_BUFFER];/* contains js-functions with arguments ... all other basic code is directly printed into js-include file */
9329	schaersvoo	64	char *getfile_cmd = "";
7614	schaersvoo	65	/******************************************************************************
		66	** Main Program
		67	******************************************************************************/
		68	int main(int argc, char *argv[]){
		69	/* need unique id for every call to canvasdraw : rand(); is too slow...will result in many identical id's */
12104	schaersvoo	70	struct timeval tv;struct timezone tz;gettimeofday(&tv, &tz);
		71	unsigned int canvas_root_id = (unsigned int) tv.tv_usec;
7614	schaersvoo	72	infile = stdin;/* read flyscript via stdin */
		73	int i,c;
		74	double double_data[MAX_INT+1];
		75	int int_data[MAX_INT+1];
		76	for(i=0;i<MAX_INT;i++){int_data[i]=0;double_data[i]=0;}
		77	int use_parametric = FALSE;/* will be reset after parametric plotting */
		78	int use_axis = FALSE;
11891	schaersvoo	79	int use_axis_numbering = -1;
14038	schaersvoo	80	int use_snap = 0; /* 0 = none 1=grid : 2=x-grid : 3=y-grid : 4=snap to points */
		81	int use_offset = 0;/* use_offset only for text shape objects... 0=none;1=yoffset;2=xoffset;3=xyoffset;4=centered*/
7797	schaersvoo	82	int use_pan_and_zoom = FALSE;
7956	schaersvoo	83	int use_safe_eval = FALSE; /* if true, add just once : js function to evaluate userinput values for plotting etc */
7858	schaersvoo	84	int use_js_math = FALSE; /* if true add js-function to convert math_function --> javascript math_function */
		85	int use_js_plot = FALSE; /* if true , let js-engine plot the curve */
11006	schaersvoo	86	int jsplot_cnt = 0; /* keepint track on the curve identity */
8448	schaersvoo	87	int print_drag_params_only_once = FALSE;/* avoid multiple useless identical lines about javascript precision and use_dragdrop */
14038	schaersvoo	88	int include_special_OEF_reply = FALSE; /* used for including extra read_canvas_images();*/
7614	schaersvoo	89	int line_width = 1;
		90	int decimals = 2;
8365	schaersvoo	91	int precision = 100; /* 10 = 1;100=2;1000=3 decimal display for mouse coordinates or grid coordinate.May be redefined before every object */
		92	int use_userdraw = FALSE; /* flag to indicate user interaction */
7614	schaersvoo	93	int drag_type = -1;/* 0,1,2 : xy,x,y */
9329	schaersvoo	94	int use_tooltip = -1; /* 1= tooltip 2= popup window*/
7614	schaersvoo	95	char *tooltip_text = "Click here";
		96	char temp = ""; / */
		97	char bgcolor = "";/ used for background of canvas_div ; default is tranparent */
		98	char *stroke_color = "255,0,0";
		99	char *fill_color = "0,255,0";
		100	char font_family = "12px Ariel"; / commands xaxistext,yaxistext,legend,text/textup/string/stringup may us this */
		101	char *font_color = "#00000";
		102	char *draw_type = "points";
		103	char *fly_font = "normal";
8815	schaersvoo	104	char *input_style = "font-family:Ariel;text-align:center;color:blue;font-size:12px;background-color:orange;";
7614	schaersvoo	105	char *flytext = "";
7785	schaersvoo	106	char *affine_matrix = "[1,0,0,1,0,0]";
8297	schaersvoo	107	char *function_label = "f(x)=";
11839	schaersvoo	108	int use_pattern = 0; /* used in drag&drop library : grid=2,hatch=3,diamond=4,dot=5*/
11006	schaersvoo	109	int canvas_type = DRAG_CANVAS; /* to use a specific canvas for filling etc */
7614	schaersvoo	110	int pixelsize = 1;
		111	int reply_format = 0;
		112	int input_cnt = 0;
		113	int ext_img_cnt = 0;
8071	schaersvoo	114	int slider_cnt = 0;
11763	schaersvoo	115	int fill_cnt = 0;
10953	bpr	116	int font_size = 12;/* this may lead to problems when using something like "fontfamily Italic 24px Ariel" the "font_size" value is not substituted into fontfamily !! */
8388	schaersvoo	117	int fly_font_size = 12; /fly_font_size is relative to this... /
11837	schaersvoo	118	int dashtype[2] = { 4 , 4 }; /* just line_px and space_px : may have more arguments...if needed in future */
7614	schaersvoo	119	int js_function[MAX_JS_FUNCTIONS]; /* javascript functions include objects on demand basis : only once per object type */
		120	for(i=0;i<MAX_JS_FUNCTIONS;i++){js_function[i]=0;}
8365	schaersvoo	121	int arrow_head = 8; /* size in px needed for arrow based userdraw: "userdraw arrow,color" */
7833	schaersvoo	122	int crosshair_size = 5; /* size in px*/
8365	schaersvoo	123	int plot_steps = 250;/* the js-arrays with x_data_points and y_data_points will have size 250 each: use with care !!! use jscurve when precise plots are required */
		124	int found_size_command = 0; /* 1 = found size ; 2 = found xrange; 3 = found yrange :just to flag an error message */
8448	schaersvoo	125	int click_cnt = 0; /counter to identify the "onclick" ojects ; 0 is first object set onclick: reply[click_cnt]=1 when clicked ; otherwise reply[click_cnt]=0 ; click_cnt is only increased when another object is set again /
7614	schaersvoo	126	int clock_cnt = 0; /* counts the amount of clocks used -> unique object clock%d */
		127	int linegraph_cnt = 0; /* identifier for command 'linegraph' ; multiple line graphs may be plotted in a single plot*/
7989	schaersvoo	128	int barchart_cnt = 0; /* identifier for command 'barchart' ; multiple charts may be plotted in a single plot*/
9433	schaersvoo	129	int boxplot_cnt = 0;
11890	schaersvoo	130	int numberline_cnt = 0;
7956	schaersvoo	131	int legend_cnt = -1; /* to allow multiple legends to be used, for multiple piecharts etc */
8074	schaersvoo	132	int reply_precision = 100; /* used for precision of student answers / drawings */
7614	schaersvoo	133	double angle = 0.0;
10953	bpr	134	char *rotation_center = "null";
8365	schaersvoo	135	int clickfillmarge = 20; /* in pixels : if the 'remove click' is within this marge, the filling is removed */
11893	schaersvoo	136	int use_animate = 0; /* used for jscurve / js parametric */
7823	schaersvoo	137	int use_input_xy = 0; /* 1= input fields 2= textarea 3=calc y value*/
10953	bpr	138	int use_slider_display = 0; /* in case of a slider, should we display its value ?*/
8365	schaersvoo	139	size_t string_length = 0; /* measure the size of the user input fly-string */
		140	double stroke_opacity = 0.8; /* use some opacity as default */
		141	double fill_opacity = 0.8;/* use some opacity as default */
7614	schaersvoo	142	char *URL = "http://localhost/images";
9213	schaersvoo	143	char *slider_function_x = "x";
		144	char *slider_function_y = "y";
7614	schaersvoo	145	memset(buffer,'\0',MAX_BUFFER);
		146	void *tmp_buffer = "";
		147	/* default writing a unzipped js-include file into wims getfile directory */
		148	char *w_wims_session = getenv("w_wims_session");
12104	schaersvoo	149	if( w_wims_session == NULL \|\| *w_wims_session == 0 ){canvas_error("Hmmm, your wims environment does not exist...\nCanvasdraw should be used within wims.");}
7614	schaersvoo	150	int L0=strlen(w_wims_session) + 21;
		151	char getfile_dir = my_newmem(L0); / create memory to fit string precisely */
		152	snprintf(getfile_dir,L0, "../sessions/%s/getfile",w_wims_session);/* string will fit precisely */
		153	mode_t process_mask = umask(0); /* check if file exists */
		154	int result = mkdir(getfile_dir, S_IRWXU \| S_IRWXG \| S_IRWXO);
		155	if( result == 0 \|\| errno == EEXIST ){
		156	umask(process_mask); /* be sure to set correct permission */
8224	bpr	157	char *w_session = getenv("w_session");
7614	schaersvoo	158	int L1 = (int) (strlen(w_session)) + find_number_of_digits(canvas_root_id) + 48;
12104	schaersvoo	159	getfile_cmd = my_newmem(L1); /* create memory to fit string precisely */
8224	bpr	160	snprintf(getfile_cmd,L1,"wims.cgi?session=%s&cmd=getfile&special_parm=%d.js",w_session,canvas_root_id);/* extension ".gz" is MANDATORY for webserver */
13306	obado	161	/* write the include tag to html page:<script src="wims.cgi?session=%s&cmd=getfile&special_parm=11223344_js"></script> */
7614	schaersvoo	162	/* now write file into getfile dir*/
		163	char w_wims_home = getenv("w_wims_home"); / "/home/users/wims" : we need absolute path for location */
		164	int L2 = (int) (strlen(w_wims_home)) + (int) (strlen(w_wims_session)) + find_number_of_digits(canvas_root_id) + 23;
		165	char location = my_newmem(L2); / create memory to fit string precisely */
		166	snprintf(location,L2,"%s/sessions/%s/getfile/%d.js",w_wims_home,w_wims_session,canvas_root_id);/absolute path /
		167	js_include_file = fopen(location,"w");/* open the file location for writing */
		168	/* check on opening...if nogood : mount readonly? disk full? permissions not set correctly? */
		169	if(js_include_file == NULL){ canvas_error("SHOULD NOT HAPPEN : could not write to javascript include file...check your system logfiles !" );}
		170
		171	/* ----------------------------------------------------- */
11997	schaersvoo	172
7614	schaersvoo	173	/* while more lines to process */
		174
		175	while(!finished){
9329	schaersvoo	176	if(line_number>1 && found_size_command == 0 && use_tooltip != 2 ){canvas_error("command \"size xsize,ysize\" needs to come first ! ");}
7614	schaersvoo	177	type = get_token(infile);
		178	done = FALSE;
		179	/*
9385	schaersvoo	180	@ canvasdraw
		181	@ will try use the same syntax as flydraw or svgdraw to paint a html5 bitmap image<br />by generating a tailor-made javascript include file: providing only the js-functionality needed to perform the job.<br />thus ensuring a minimal strain on the client browser <br />(unlike some popular 'canvas-do-it-all' libraries, who have proven to be not suitable for low-end computers found in schools...)
13936	bpr	182	@ general syntax <ul><li>The transparency of all objects can be controlled by command <a href="#opacity">'opacity [0-255],[0,255]'</a></il><li>line width of any object can be controlled by command <a href="#linewidth">'linewidth int'</a></li><li>any may be dashed by using keyword <a href="#dashed">'dashed'</a> before the object command.<br />the dashing type can be controled by command <a href="#dashtype">'dashtype int,int'</a></li><li>a fillable object can be set fillable by starting the object command with an 'f'<br />(like frect,fcircle,ftriangle...)<br />or by using the keyword <a href="#filled">'filled'</a> before the object command.<br />The fill colour of 'non_userdraw' objects will be the stroke colour...(flydraw harmonization 19/10/2013)<br />non-solid filling (grid,hatch,diamond,dot,text) is provided using command <a href="#fillpattern">fillpattern a_pattern</a><br />for <a href="#filltoborder">filltoborder x0,y0,color</a> or <a href="#filltoborder">fill x0,y0,color</a> type filling (eg fill a region around x0,y0 with color until a border is encountered),<br />there are non-solid pattern fill analogues:<ul><li><a href="#gridfill">gridfill x,y,dx,dy,color</a></li><li><a href="#hatchfill">hatchfill x,y,dx,dy,color</a></li><li><a href="#diamondfill">diamondfill x,y,dx,dy,color</a></li><li><a href="#dotfill">dotfill x,y,dx,dy,color</a></li><li><a href="#textfill">textfill x,y,color,sometext_or_char</a></li></ul></li><li>all draggable objects may have a <a href="#slider">slider</a> for translation / rotation; several objects may be translated / rotated by a single slider</li> <li> a draggable object can be set draggable by a preceding command <a href="#drag">'drag x/y/xy'</a><br />The translation can be read by javascript:read_dragdrop();The replyformat is : object_number : x-orig : y-orig : x-drag : y-drag<br />The x-orig/y-orig will be returned in maximum precision (javascript float)...<br />the x-drag/y-drag will be returned in defined 'precision' number of decimals<br />Multiple objects may be set draggable / clickable (no limit)<br /> not all flydraw objects may be dragged / clicked<br />Only draggable / clickable objects will be scaled on <a href="#zoom">zoom</a> and will be translated in case of panning</li><li> a 'onclick object' can be set 'clickable' by the preceding keyword <a href="#onclick">'onclick'</a><br />not all flydraw objects can be set clickable</li><li><b>remarks using a ';' as command separator</b><br />commands with only numeric or colour arguments may be using a ';' as command separator (instead of a new line)<br />commands with a string argument may not use a ';' as command separator !<br />these exceptions are not really straight forward... so keep this in mind.</li><li>almost every <a href="#userdraw">"userdraw object,color"</a> or <a href="#multidraw">"multidraw"</a> command 'family' may be combined with keywords <a href="#snaptogrid">"snaptogrid \| xsnaptogrid \| ysnaptogrid \| snaptofunction</a> or command "snaptopoints x1,y1,x2,y2,..." </li><li>every draggable \| onclick object may be combined with keywords <a href="#snaptogrid">snaptogrid \| xsnaptogrid \| ysnaptogrid \| snaptofunction</a> or command "snaptopoints x1,y1,x2,y2,..." </li><li>almost every command for a single object has a multiple objects counterpart:<br /><ul>general syntaxrule:<li><em>single_object</em> x1,y1,...,color</li><li><em>multi_object</em> color,x1,y1,...</li></ul><li>All inputfields or textareas generated, can be styled individually using command <a href="#inputstyle">'inputstyle some_css'</a><br/>the fontsize used for labeling these elements can be controlled by command <a href="#fontsize">'fontsize int'</a> <br />command 'fontfamily' is <b>not</b> active for these elements </li></ul>
10953	bpr	183	@ If needed multiple interactive scripts may be used in a single webpage.<br />A function 'read_canvas()' and / or 'read_dragdrop()' can read all interactive userdata from these images.<br />The global array 'canvas_scripts' will contain all unique random "canvas_root_id" of the included scripts.<br />The included local javascript "read" functions "read_canvas%d()" and "read_dragdrop%d()" will have this "%d = canvas_root_id"<br />e.g. canvas_scripts[0] will be the random id of the first script in the page and will thus provide a function<br />fun = eval("read_canvas"+canvas_scripts[0]) to read user based drawings / inputfield in this first image.<br />The read_dragdrop is analogue.<br />If the default reply formatting is not suitable, use command <a href='#replyformat'>'replyformat'</a> to format the replies for an individual canvas script,<br />To read all user interactions from all included canvas scripts , use something like:<br /><em>function read_all_canvas_images(){<br /> var script_len = canvas_scripts.length;<br /> var draw_reply = "";<br /> var found_result = false;<br /> for(var p = 0 ; p < script_len ; p++){<br />  var fun = eval("read_canvas"+canvas_scripts[p]);<br />  if( typeof fun === 'function'){<br />   var result = fun();<br />   if( result  && result.length != 0){<br />    if(script_len == 1 ){ return result;};<br />     found_result = true;<br />     draw_reply = draw_reply + result + "\\n";<br />    };<br />   };<br />  };<br /> if( found_result ){return draw_reply;}else{return null;};<br />};</em>
11006	schaersvoo	184	@ you can check the javascript reply format in the wims tool <a href="http://localhost/wims/wims.cgi?lang=en&module=tool/directexec">direct exec</a>
10962	schaersvoo	185	@ for usage within OEF (without anstype "draw"), something like this (a popup function plotter) will work:<br /><small>\\text{popup_grapher=wims(exec canvasdraw <br />popup<br />size 400,400<br />xrange -10,10<br />yrange -10,10<br />axis<br />axisnumbering<br />opacity 100,100<br />grid 2,2,grey,2,2,6,black<br />snaptogrid<br />linewidth 2<br />jsplot red,5*sin(1/x)<br />strokecolor green<br />functionlabel f(x)=<br />userinput function<br />mouse blue,22<br />)<br />}<br />\\statement{<br />\\popup_grapher<br />}</small>
9427	schaersvoo	186	@ be aware that older browsers will probably not work correctly<br />no effort has been undertaken to add glue code for older browsers !! <br />in any case it's not wise to use older browsers...not just for canvasdraw
10827	schaersvoo	187	@ if you find flaws, errors or other incompatibilities -not those mentioned in this document- send <a href='mailto:jm.evers-at-schaersvoorde.nl'>me</a> an email with screenshots and the generated javascript include file.
13957	schaersvoo	188	@ there is limited support for touch devices : touchstart,touchmove and touchend in commands <a href="#userdraw">userdraw primitives </a>, <a href="#protractor">protractor</a> and <a href="#ruler">ruler</a><br />only single finger gestures are supported (for now)<br />for more accurate user-interaction (numeric, eg keyboard driven drawings) with canvasdraw on touch devices: use the command family <a href="#userinput_xy">userinput</a>
7614	schaersvoo	189	*/
		190	switch(type){
		191	case END:
		192	finished = 1;
		193	done = TRUE;
		194	break;
		195	case 0:
		196	sync_input(infile);
		197	break;
12063	schaersvoo	198
		199	case CENTERED:
		200	use_offset = 4;
		201	/*
		202	@ centered
		203	@ keyword ; to place the text centered (in width and height) on the text coordinates(x:y)
13829	bpr	204	@ may be used for text exactly centered on it's (x;y)
12063	schaersvoo	205	@ use <a href="#fontfamily">fontfamily</a> for setting the font
13957	schaersvoo	206	@ may be active for commands <a href="#text">text</a> and <a href="#string">string</a> (e.g. objects in the 'drag/drop/onclick-library')
12107	schaersvoo	207	@%centered%size 400,400%xrange -10,10%yrange -10,10%fontfamily 12pt Ariel%string blue,-9,-9,no offset%point -9,-9,red%centered%string blue,-6,-6,centered%point -6,-6,red%xoffset%string blue,-3,-3,xoffset%point -3,-3,red%yoffset%string blue,0,0,yoffset%point 0,0,red%xyoffset%string blue,3,3,xyoffset%point 3,3,red%resetoffset%string blue,6,6,resetoffset%point 6,6,red
12063	schaersvoo	208	*/
		209	break;
		210
7614	schaersvoo	211	case COMMENT:
		212	sync_input(infile);
		213	break;
11806	schaersvoo	214	case AFFINE:
7614	schaersvoo	215	/*
11806	schaersvoo	216	@ affine a,b,c,d,tx,ty
		217	@ defines a transformation matrix for subsequent objects
13957	schaersvoo	218	@ follows the HTML5 / Canvas transformation standards<br />note: images drawn by setting skew params a & d will thus be very different from Flydraw's "affine a,b,c,d,e,tx,ty" !!
		219	@ use keyword <a href='#killaffine'>'killaffine'</a> to end the transformation...the next objects will be drawn in the original x/y-range
		220	@ note 1: only 'draggable' / 'onclick' type of objects (e.g. objects in the 'drag/drop/onclick-library') can be transformed.
		221	@ note 2: do not use 'onclick' or 'drag xy' with tranformation / rotation objects : the mouse coordinates do not get transformed (yet)
11806	schaersvoo	222	@ note 3: no matrix operations on the transformation matrix implemented (yet)
		223	@ a : Scales the drawings horizontally
		224	@ b : Skews the drawings horizontally
		225	@ c : Skews the drawings vertically
		226	@ d : Scales the drawings vertically
		227	@ tx: Moves the drawings horizontally in xrange coordinate system
		228	@ ty: Moves the drawings vertically in yrange coordinate system
		229	@ the data precision may be set by preceding command "precision int"
12107	schaersvoo	230	@%affine%size 400,400%xrange -10,10%yrange -10,10%opacity 255,255%fcircle 5,5,40,blue%affine 1,0,0,1,-10,-10%fcircle 5,5,40,green
7614	schaersvoo	231	*/
11806	schaersvoo	232	for(i = 0 ; i<6;i++){
7614	schaersvoo	233	switch(i){
11806	schaersvoo	234	case 0: double_data[0] = get_real(infile,0);break;
		235	case 1: double_data[1] = get_real(infile,0);break;
		236	case 2: double_data[2] = get_real(infile,0);break;
		237	case 3: double_data[3] = get_real(infile,0);break;
		238	case 4: double_data[4] = get_real(infile,0);break;
		239	case 5: double_data[5] = get_real(infile,1);
		240	use_affine = TRUE;
		241	decimals = find_number_of_digits(precision);
		242	string_length = snprintf(NULL,0, "[%.f,%.f,%.f,%.f,%.f,%.f] ",decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4]xsize/(xmax - xmin),decimals,-1double_data[5]*ysize/(ymax - ymin));
		243	check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
		244	snprintf(affine_matrix,string_length,"[%.f,%.f,%.f,%.f,%.f,%.f] ",decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4]xsize/(xmax - xmin),decimals,-1double_data[5]*ysize/(ymax - ymin));
		245	break;
7614	schaersvoo	246	default: break;
		247	}
		248	}
11806	schaersvoo	249	break;
8386	schaersvoo	250
11806	schaersvoo	251	case ANGLE:
7614	schaersvoo	252	/*
11806	schaersvoo	253	@ angle xc,yc,width,start_angle,end_angle,color
		254	@ width is in x-range
		255	@ will zoom in/out
		256	@ if size is controlled by command <a href='#slider'>'slider'</a> use radians to set limits of slider.
12110	schaersvoo	257	@%angle%size 400,400%xrange -10,10%yrange -10,10%filled%fillcolor orange%angle 0,0,4,10,135,blue
13961	schaersvoo	258	@%angle_slider%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 3%fillcolor black%strokecolor yellow%slider 0,2*pi,400,30,angle degrees,Rotate arrow%arrow 0,0,8,0,8,red%filled%fillcolor orange%angle 0,0,4,0,0,red
7614	schaersvoo	259	*/
11806	schaersvoo	260	for(i=0;i<7;i++){
7614	schaersvoo	261	switch(i){
11806	schaersvoo	262	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		263	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		264	case 2:double_data[2] = get_real(infile,0);break; /* width in pixels ! */
		265	case 3:double_data[3] = get_real(infile,0);break; /* start angle in degrees */
		266	case 4:double_data[4] = get_real(infile,0);break; /* end angle in degrees */
		267	case 5:stroke_color = get_color(infile,1);/* name or hex color */
		268	decimals = find_number_of_digits(precision);
14045	schaersvoo	269	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,17,[%.f,%.f],[%.f,%.f],[%.f,%.f],[%.f,%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[2],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	270	reset();
		271	break;
7614	schaersvoo	272	}
		273	}
		274	break;
8386	schaersvoo	275
11806	schaersvoo	276	case ANIMATE:
7614	schaersvoo	277	/*
11930	schaersvoo	278	@ animate
11893	schaersvoo	279	@ keyword
		280	@ the animated point is a filled rectangle ; adjust colour with command 'fillcolor colorname/hexnumber'
		281	@ use linewidth to adjust size of the points
13957	schaersvoo	282	@ will animate a point on -only- the next <a href='#jsplot'>jsplot/jscurve command</a> . Only a single call to 'animate' is allowed...in case of multiple 'animate' keywords, only the last one is valid
		283	@ only usable for command jsplot (normal functions or parametric)<br />no other object/thing can be animated -for now
		284	@ moves repeatedly from <a href='#xrange'>xmin to xmax</a> or in case of a parametric function from <a href='#trange'>tmin to tmax</a>
		285	@ use commands <a href='#multilinewidth'>multilinewidth</a>, <a href='#multistrokecolor'>multistrokecolor</a> etc in case of multiple animated functions.<br/ >use multiple functions as argument in a single call to <a href='#jsplot'>jsplot color,fun1,fun2,fun3...fun_n</a>
13939	bpr	286	@%animate_1%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 1%grid 2,2,grey,2,2,5,grey%precision 100%linewidth 4%fillcolor red%animate%trange -2pi,2pi%linewidth 1%opacity 255,50%canvastype 100%fill 1.2,1.2,red%canvastype 101%fill -1.2,-1.2,blue%jsplot blue,7cos(x),5sin(2*x)
		287	@%animate_2%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 1%grid 2,2,grey,2,2,5,grey%precision 100%linewidth 4%fillcolor red%animate%trange -2pi,2pi%linewidth 1%opacity 255,50%canvastype 100%fill 1.2,1.2,red%canvastype 101%fill -1.2,-1.2,blue%multistrokecolors blue,blue,green,green,orange,orange%multilinewidth 2,2,3,3,1,1%jsplot blue,7cos(x),5sin(2x),9sin(x),5*cos(x),x^2,x
7614	schaersvoo	288	*/
13512	schaersvoo	289	use_animate++;
		290	if( use_animate == 1 ){
		291	fprintf(js_include_file,"\nvar trace_canvas = create_canvas%d(%d,xsize,ysize);\
		292	var trace_ctx = trace_canvas.getContext('2d');\
		293	trace_ctx.fillStyle = 'rgba(%s,%f)';\
		294	trace_ctx.strokeStyle = 'rgba(%s,%f)';\
		295	trace_ctx.lineWidth = %d;var anim_pos = 0;\n\
		296	function animate_this(){\
		297	var sync;\
		298	var synchrone = Math.floor(animation_steps/animation_funs);\
		299	trace_ctx.clearRect(0,0,xsize,ysize);\
		300	for(var p=0; p<animation_funs;p++){\
		301	sync = p*synchrone;\
		302	trace_ctx.fillRect(x_anim_points[sync+anim_pos]-%d, y_anim_points[sync+anim_pos]-%d,%d,%d);\
		303	};\
		304	setTimeout(function(){\
		305	requestAnimationFrame(animate_this); anim_pos++;}, 50\
		306	);\
		307	if(anim_pos >= animation_steps){anim_pos = 0;};\
		308	};",canvas_root_id,ANIMATE_CANVAS,fill_color,fill_opacity,stroke_color,stroke_opacity,line_width,line_width,line_width,2line_width,2line_width);
		309	}
		310	else
		311	{
13514	schaersvoo	312	canvas_error("animate can only be used once<br />multiple curves may be animated using something like:<br />jsplot red,sin(x),cos(x),x^2,sin(2*x)");
13512	schaersvoo	313	}
7614	schaersvoo	314	break;
8386	schaersvoo	315
11806	schaersvoo	316	case ARC:
7614	schaersvoo	317	/*
11997	schaersvoo	318	@ arc xc,yc,x-width,y-height,start_angle,end_angle,color
11806	schaersvoo	319	@ can <b>not</b> be set "onclick" or "drag xy"
		320	@ <b>attention</b>: width in height in x/y-range
12110	schaersvoo	321	@%arc%size 400,400%xrange -10,10%yrange -10,10%arc 0,0,4,4,10,135,red%zoom blue
13961	schaersvoo	322	@%arc_filled%size 400,400%xrange -10,10%yrange -10,10%opacity 255,60%filled%fillcolor green%arc 0,0,4,4,10,135,red
		323	@%arc_slider%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 3%fillcolor black%strokecolor yellow%slider 0,2*pi,400,30,angle degree,Rotate arrow%arrow 0,0,8,0,8,red%filled%fillcolor orange%fillpatter hatch%opacity 255,80%arc 0,0,8,8,0,0,red
7614	schaersvoo	324	*/
11806	schaersvoo	325	for(i=0;i<7;i++){
		326	switch(i){
		327	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		328	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		329	case 2:double_data[2] = get_real(infile,0);break; /* width x-range no pixels ! */
		330	case 3:double_data[3] = get_real(infile,0);break; /* height y-range no pixels ! */
		331	case 4:double_data[4] = get_real(infile,0);break; /* start angle in degrees */
		332	case 5:double_data[5] = get_real(infile,0);break; /* end angle in degrees */
		333	case 6:stroke_color = get_color(infile,1);/* name or hex color */
		334	/* in Shape library:
		335	x[0] = x[1] = xc = double_data[0]
		336	y[0] = y[1] = yc = double_data[1]
		337	w[0] = width = double_data[2]
		338	w[1] = height = double_data[3]
		339	h[0] = start_angle = double_data[4]
		340	h[1] = end_angle = double_data[5]
		341	*/
		342	decimals = find_number_of_digits(precision);
14045	schaersvoo	343	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,12,[%.f,%.f],[%.f,%.f],[%.f,%.f],[%.f,%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4],decimals,double_data[5],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	344	reset();
		345	break;
		346	}
		347	}
7614	schaersvoo	348	break;
11806	schaersvoo	349	case ARROW:
7614	schaersvoo	350	/*
11806	schaersvoo	351	@ arrow x1,y1,x2,y2,h,color
		352	@ alternative : vector
		353	@ draw a single headed arrow / vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		354	@ use command 'linewidth int' to adjust thickness of the arrow
9406	schaersvoo	355	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
13957	schaersvoo	356	@%arrow_drag%size 400,400%xrange -10,10%yrange -10,10%cursor move%linewidth 2%drag xy%arrow 0,0,4,3,8,blue%drag xy%arrow 0,0,-4,3,8,green%drag xy%arrow 0,0,4,-3,8,orange%drag xy%arrow 0,0,-4,-3,8,cyan
		357	@%arrow_click%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%%onclick%arrow 0,0,4,4,8,blue%onclick%arrow 0,0,-4,5,8,green%onclick%arrow 0,0,4,-6,8,orange%onclick%arrow 0,0,-4,-2,8,cyan
7614	schaersvoo	358	*/
11806	schaersvoo	359	for(i=0;i<6;i++){
7614	schaersvoo	360	switch(i){
		361	case 0: double_data[0] = get_real(infile,0);break; /* x */
		362	case 1: double_data[1] = get_real(infile,0);break; /* y */
11806	schaersvoo	363	case 2: double_data[2] = get_real(infile,0);break; /* x */
		364	case 3: double_data[3] = get_real(infile,0);break; /* y */
		365	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		366	case 5: stroke_color = get_color(infile,1);/* name or hex color */
7614	schaersvoo	367	decimals = find_number_of_digits(precision);
14045	schaersvoo	368	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,8,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	369	if(onclick > 0){click_cnt++;}
		370	/* click_cnt++;*/
		371	reset();
		372	break;
		373	}
		374	}
		375	break;
8386	schaersvoo	376
11806	schaersvoo	377	case ARROWS:
7614	schaersvoo	378	/*
11806	schaersvoo	379	@ arrows color,head (px),x1,y1,x2,y2...x_n,y_n
		380	@ alternative : vectors
		381	@ draw single headed arrows / vectors from (x1:y1) to (x2:y2) ... (x3:y3) to (x4:y4) etc ... in color 'color'
		382	@ use command 'linewidth int' to adjust thickness of the arrow
		383	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
13957	schaersvoo	384	@%arrows_click%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%onclick%arrows red,8,0,0,4,3,0,0,2,4,0,0,-2,4,0,0,-3,-4,0,0,3,-2%
		385	@%arrows_drag%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%drag xy%arrows red,8,0,0,4,3,0,0,2,4,0,0,-2,4,0,0,-3,-4,0,0,3,-2%
7614	schaersvoo	386	*/
		387	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		388	fill_color = stroke_color;
11806	schaersvoo	389	arrow_head = (int) get_real(infile,0);/* h */
7614	schaersvoo	390	i=0;
		391	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	392	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
7614	schaersvoo	393	if(i%2 == 0 ){
		394	double_data[i] = get_real(infile,0); /* x */
		395	}
		396	else
		397	{
		398	double_data[i] = get_real(infile,1); /* y */
		399	}
		400	i++;
		401	}
		402	decimals = find_number_of_digits(precision);
11806	schaersvoo	403	for(c = 0 ; c < i-1 ; c = c+4){
14045	schaersvoo	404	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,8,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	405	if(onclick > 0){click_cnt++;}
8379	schaersvoo	406	/* click_cnt++; */
7614	schaersvoo	407	}
		408	reset();
		409	break;
8386	schaersvoo	410
11806	schaersvoo	411	case ARROW2:
7614	schaersvoo	412	/*
11806	schaersvoo	413	@ arrow2 x1,y1,x2,y2,h,color
		414	@ draw a double headed arrow/vector from (x1:y1) to (x2:y2)<br />with arrowhead size h in px and in color 'color'
		415	@ use command 'arrowhead int' to adjust the arrow head size
		416	@ use command 'linewidth int' to adjust thickness of the arrow
9406	schaersvoo	417	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12107	schaersvoo	418	@%arrow2%size 400,400%xrange -10,10%yrange -10,10%drag xy%arrow2 0,0,4,3,8,blue%
7614	schaersvoo	419	*/
11806	schaersvoo	420	for(i=0;i<6;i++){
7614	schaersvoo	421	switch(i){
		422	case 0: double_data[0] = get_real(infile,0);break; /* x */
		423	case 1: double_data[1] = get_real(infile,0);break; /* y */
11806	schaersvoo	424	case 2: double_data[2] = get_real(infile,0);break; /* x */
		425	case 3: double_data[3] = get_real(infile,0);break; /* y */
		426	case 4: arrow_head = (int) get_real(infile,0);break;/* h */
		427	case 5: stroke_color = get_color(infile,1);/* name or hex color */
		428	decimals = find_number_of_digits(precision);
14045	schaersvoo	429	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,10,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	430	if(onclick > 0){click_cnt++;}
		431	/* click_cnt++;*/
		432	reset();
		433	break;
		434	}
		435	}
		436	break;
8386	schaersvoo	437
11806	schaersvoo	438	case ARROWS2:
7614	schaersvoo	439	/*
11806	schaersvoo	440	@ arrows2 color,head (px),x1,y1,x2,y2...x_n,y_n
		441	@ draw double headed arrows / vectors from (x1:y1) to (x2:y2) ... (x3:y3) to (x4:y4) etc ... in color 'color'
		442	@ use command 'linewidth int' to adjust thickness of the arrows
		443	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
12107	schaersvoo	444	@%arrows2%size 400,400%xrange -10,10%yrange -10,10%onclick%arrows2 red,8,0,0,4,3,1,1,2,4,2,2,-2,4,3,3,-3,-4,0,0,3,-2%
7614	schaersvoo	445	*/
		446	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		447	fill_color = stroke_color;
11806	schaersvoo	448	arrow_head = (int) get_real(infile,0);/* h */
7614	schaersvoo	449	i=0;
		450	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	451	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
7614	schaersvoo	452	if(i%2 == 0 ){
		453	double_data[i] = get_real(infile,0); /* x */
		454	}
		455	else
		456	{
		457	double_data[i] = get_real(infile,1); /* y */
		458	}
		459	i++;
		460	}
8224	bpr	461	decimals = find_number_of_digits(precision);
11806	schaersvoo	462	for(c = 0 ; c < i-1 ; c = c+4){
14045	schaersvoo	463	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,10,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],arrow_head,arrow_head,arrow_head,arrow_head,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	464	if(onclick > 0){click_cnt++;}
8379	schaersvoo	465	/* click_cnt++; */
11806	schaersvoo	466
7614	schaersvoo	467	}
		468	reset();
		469	break;
11806	schaersvoo	470	case ARROWHEAD:
9427	schaersvoo	471	/*
11806	schaersvoo	472	@ arrowhead int
		473	@ default 8 (pixels)
9427	schaersvoo	474	*/
11806	schaersvoo	475	arrow_head = (int) (get_real(infile,1));
		476	break;
		477
		478	case AUDIO:
		479	/*
		480	@ audio x,y,w,h,loop,visible,audiofile location
		481	@ x,y : left top corner of audio element (in xrange / yrange)
		482	@ w,y : width and height in pixels
		483	@ loop : 0 or 1 ( 1 = loop audio fragment)
		484	@ visible : 0 or 1 (1 = show controls)
		485	@ audio format may be in .mp3 or .ogg
		486	@ If you are using *.mp3 : be aware that FireFox will not (never) play this ! (Pattented format)
		487	@ if you are using *.ogg : be aware that Microsoft based systems not support it natively
		488	@ To avoid problems supply both types (mp3 and ogg) of audiofiles.<br />the program will use both as source tag
		489	*/
		490	if( js_function[DRAW_AUDIO] != 1 ){ js_function[DRAW_AUDIO] = 1;}
		491	for(i=0;i<7;i++){
		492	switch(i){
		493	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		494	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		495	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		496	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		497	case 4: int_data[4] = (int) (get_real(infile,0)); if(int_data[4] != TRUE){int_data[4] = FALSE;} break; /* loop boolean */
		498	case 5: int_data[5] = (int) (get_real(infile,0)); if(int_data[5] != TRUE){int_data[5] = FALSE;} break; /* visible boolean */
		499	case 6:
		500	temp = get_string(infile,1);
		501	if( strstr(temp,".mp3") != 0 ){ temp = str_replace(temp,".mp3","");}
		502	if( strstr(temp,".ogg") != 0 ){ temp = str_replace(temp,".ogg","");}
		503	string_length = snprintf(NULL,0, "draw_audio(%d,%d,%d,%d,%d,%d,%d,\"%s.ogg\",\"%s.mp3\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],temp,temp);
		504	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		505	snprintf(tmp_buffer,string_length,"draw_audio(%d,%d,%d,%d,%d,%d,%d,\"%s.ogg\",\"%s.mp3\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],temp,temp);
		506	add_to_buffer(tmp_buffer);
		507	break;
		508	default:break;
9427	schaersvoo	509	}
11806	schaersvoo	510	}
		511	reset();
		512	break;
		513
		514
		515	case AXIS_NUMBERING:
		516	/*
		517	@ axisnumbering
		518	@ keyword (no arguments required)
		519	@ for special numbering of x-axis or y-axis see grid related commands <a href="#axis">axis</a> <a href="#xaxis">xaxis</a> , <a href="#xaxisup">xaxisup</a>, <a href="#noxaxis">noxaxis</a> ,<a href="#yaxis">yaxis</a> , <a href="#yaxisup">yaxisup</a>, <a href="#noyaxis">noyaxis</a>
		520	@ to be used before command grid (see <a href="#grid">command grid</a>)
		521	*/
11891	schaersvoo	522	use_axis_numbering++;
11806	schaersvoo	523	break;
		524	case AXIS:
		525	/*
		526	@ axis
		527	@ keyword (no arguments required)
		528	@ to be used before command grid (see <a href="#grid">command grid</a>)
		529
		530	*/
		531	use_axis = TRUE;
		532	break;
		533
		534	case BARCHART:
		535	/*
		536	@ barchart x_1:y_1:color_1:x_2:y_2:color_2:...x_n:y_n:color_n
		537	@ may <b>only</b> to be used together with command <a href='#grid'>'grid'</a>
		538	@ can be used together with freestyle x-axis/y-axis texts : see commands <a href='#xaxis'>'xaxis'</a>,<a href='#xaxisup'>'xaxisup'</a> and <a href='#yaxis'>'yaxis'</a>
		539	@ use command <a href='#legend'>'legend'</a> to provide an optional legend in right-top-corner
		540	@ multiple barchart command may be used in a single script
		541	@ also see command <a href='#piechart'>'piechart'</a>
		542	@ note: your arguments are not checked by canvasdraw : use your javascript console in case of trouble...
12107	schaersvoo	543	@%barchart%size 400,400%xrange -1,10%yrange -2,14%legend legend Z:legend A:this is B:C:D:E:F:G:H:X%legendcolors green:red:orange:lightblue:cyan:gold:purple:darkred:yellow:lightgreen%xaxis 0:Z:1:A:2:B:3:C:4:D:5:E:6:F:7:G:8:H:9:X%noyaxis%precision 1%fontfamily bold 15px Ariel%grid 1,1,white%barchart 0:5.5:green:2:5.5:red:4:6.5:orange:6:8:lightblue:8:11:cyan:1:5.5:gold:3:9:purple:5:4:darkred:7:7:yellow:9:1:lightgreen%mouse red,14
11806	schaersvoo	544	*/
		545	temp = get_string(infile,1);
		546	if( strstr( temp,":" ) != 0 ){ temp = str_replace(temp,":","\",\""); }
		547	fprintf(js_include_file,"var barchart_%d = [\"%s\"];",barchart_cnt,temp);
		548	barchart_cnt++;
		549	reset();
		550	break;
		551
		552	case BEZIER:
		553	/*
		554	@ bezier color,x_start,y_start,x_first,y_first,x_second,y_second,x_end,y_end
		555	@ draw a bezier curve between points, starting from (x_start:y_start)
		556	@ can <b>not</b> be dragged or set onclick
		557	*/
		558	if( js_function[DRAW_BEZIER] != 1 ){ js_function[DRAW_BEZIER] = 1;}
		559	decimals = find_number_of_digits(precision);
		560	for(i = 0 ; i < 9; i++){
		561	switch(i){
		562	case 0: stroke_color = get_color(infile,0);break;
		563	case 1: double_data[0] = get_real(infile,0);break;/* start x */
		564	case 2: double_data[1] = get_real(infile,0);break;/* start y */
		565	case 3: double_data[2] = get_real(infile,0);break;/The x-coordinate of the first B�zier control point /
		566	case 4: double_data[3] = get_real(infile,0);break;/The y-coordinate of the first B�zier control point /
		567	case 5: double_data[4] = get_real(infile,0);break;/The x-coordinate of the second B�zier control point /
		568	case 6: double_data[5] = get_real(infile,0);break;/The y-coordinate of the second B�zier control point /
		569	case 7: double_data[6] = get_real(infile,0);break;/The x-coordinate of the B�zier end point /
		570	case 8: double_data[7] = get_real(infile,1);/The y-coordinate of the B�zier end point /
		571	string_length = snprintf(NULL,0,"draw_bezier(%d,%d,[%f,%f,%f,%f,%f,%f,%f,%f],\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.2f,%d,%s);",STATIC_CANVAS,line_width,double_data[0],double_data[1],double_data[2],double_data[3],double_data[4],double_data[5],double_data[6],double_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,use_affine,affine_matrix);
		572	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		573	snprintf(tmp_buffer,string_length,"draw_bezier(%d,%d,[%f,%f,%f,%f,%f,%f,%f,%f],\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.2f,%d,%s);",STATIC_CANVAS,line_width,double_data[0],double_data[1],double_data[2],double_data[3],double_data[4],double_data[5],double_data[6],double_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,use_affine,affine_matrix);
		574	add_to_buffer(tmp_buffer);
		575	break;
		576	default: break;
9427	schaersvoo	577	}
		578	}
		579	reset();
		580	break;
11806	schaersvoo	581
		582
		583	case BGCOLOR:
9427	schaersvoo	584	/*
11806	schaersvoo	585	@ bgcolor colorname or #hex
		586	@ use this color as background of the "div" containing the canvas(es)
12110	schaersvoo	587	@%bgcolor%size 400,400%xrange -10,10%yrange -10,10%bgcolor lightblue
9427	schaersvoo	588	*/
11806	schaersvoo	589	/* [255,255,255]*/
		590	bgcolor = get_string(infile,1);
		591	if(strstr(bgcolor,"#") == NULL){ /* convert colorname -> #ff00ff */
		592	int found = 0;
		593	for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
		594	if( strcmp( colors[i].name , bgcolor ) == 0 ){
		595	bgcolor = colors[i].hex;
		596	found = 1;
		597	break;
		598	}
9427	schaersvoo	599	}
11806	schaersvoo	600	if(found == 0){canvas_error("your bgcolor is not in my rgb.txt data list : use hexcolor...something like #a0ffc4");}
		601	}
13970	obado	602	fprintf(js_include_file,"/* set background color of canvas div */\ncanvas_div.style.backgroundColor = \"%s\";canvas_div.style.opacity = %f;\n",bgcolor,fill_opacity);
11806	schaersvoo	603	break;
		604
		605	case BGIMAGE:
		606	/*
		607	@ bgimage image_location
		608	@ use an image as background .<br />technical: we use the background of 'canvas_div'
		609	@ the background image will be resized to match "width = xsize" and "height = ysize"
12110	schaersvoo	610	@%bgimage%size 400,400%xrange -10,10%yrange -10,10%bgimage https://wims.unice.fr/wims/gifs/en.gif
11806	schaersvoo	611	*/
		612	URL = get_string(infile,1);
13970	obado	613	fprintf(js_include_file,"/* set background image to canvas div */\ncanvas_div.style.backgroundImage = \"url(%s)\";canvas_div.style.backgroundSize = \"%dpx %dpx\";\n",URL,xsize,ysize);
11806	schaersvoo	614	break;
		615
		616	case BLINK:
		617	/*
		618	@ blink time(seconds)
		619	@ NOT IMPLEMETED -YET
		620	*/
		621	break;
		622
		623	case BOXPLOT:
		624	/*
		625	@ boxplot x_or_y,box-height_or_box-width,position,min,Q1,median,Q3,max
11997	schaersvoo	626	@ example :<br />xrange 0,300<br />yrange 0,10<br />boxplot x,4,8,120,160,170,220,245<br />meaning: create a boxplot in x-direction, with height 4 (in yrange) and centered around line y=8
		627	@ example :<br />xrange 0,10<br />yrange 0,300<br />boxplot y,4,8,120,160,170,220,245<br />meaning: create a boxplot in y-direction, with width 4 (in xrange) and centered around line x=8
11875	schaersvoo	628	@ use command <a href='#filled'>'filled'</a> to fill the box<br /><b>note:</b> the strokecolor is used for filling Q1, the fillcolor is used for filling Q3
		629	@ use command <a href='#fillpattern'>'fillpattern some_pattern'</a> to use a (diamond for Q1, hatch for Q3) pattern.
11806	schaersvoo	630	@ use command <a href='#opacity'>'opacity'</a> to adjust fill_opacity of stroke and fill colours
		631	@ use command <a href='#legend'>'legend'</a> to automatically create a legend <br />unicode allowed in legend<br />use command 'fontfamily' to set the font of the legend.
		632	@ there is no limit to the number of boxplots used.
13958	schaersvoo	633	@ can <b>not</b> be set draggable and <a href='#onclick'>'onclick'</a> is not ready ,yet
11806	schaersvoo	634	@ use keyword <a href="#userboxplot">'userboxplot'</a> before command boxplot, if a pupil must draw a boxplot (using his own min,Q1,median,Q3,max data)
		635	@ use keyword <a href="#userboxplotdata">'userboxplotdata'</a> before command boxplot, if a pupil must generate the data by some means.
		636	@ use command <a href="#boxplotdata">'boxplotdata'</a> when the boxplot should be drawn from wims-generated raw statistical date
12110	schaersvoo	637	@%boxplot_1%size 400,400%xrange 0,300%yrange 0,10%opacity 120,50%filled%fillcolor orange%strokecolor blue%linewidth 2%boxplot x,4,8,120,160,170,220,245
		638	@%boxplot_2%size 400,400%xrange 0,10%yrange 0,300%opacity 120,50%filled%fillcolor orange%strokecolor blue%linewidth 2%boxplot y,4,8,120,160,170,220,245
13958	schaersvoo	639	@%boxplot_3%size 400,400%xrange 0,100%yrange 0,10%fillpattern hatch%linewidth 3%fillcolor red%strokecolor green%boxplot x,1,2,4,14,27,39,66%strokecolor blue%boxplot x,1,4,15,45,50,66,87%strokecolor red%boxplot x,1,6,45,70,80,90,100%strokecolor orange%boxplot x,1,8,28,38,48,56,77%mouse red,16
11806	schaersvoo	640	*/
		641	if( js_function[DRAW_BOXPLOT] != 1 ){ js_function[DRAW_BOXPLOT] = 1;}
		642	for(i=0;i<8;i++){
		643	switch(i){
		644	case 0: temp = get_string_argument(infile,0);
		645	if( strstr(temp,"x") != 0){int_data[0] = 1;}else{int_data[0] = 0;} break; /* x or y */
		646	case 1: double_data[0] = get_real(infile,0);break;/* height \| width */
		647	case 2:
		648	if( js_function[DRAW_JSBOXPLOT] == 0 ){
		649	double_data[1] = get_real(infile,0);
		650	fprintf(js_include_file,"var boxplot_source = 0;\n");/* we use given min,Q1,median,Q3,max */
		651	}
		652	else
		653	{
		654	double_data[1] = get_real(infile,1);
		655	double_data[2] = 1;
		656	double_data[3] = 1;
		657	double_data[4] = 1;
		658	double_data[5] = 1;
		659	double_data[6] = 1;
		660	double_data[7] = 1;
		661	i=8;
		662	}
		663	break;/* center value x or y */
		664	case 3: double_data[2] = get_real(infile,0); break;/* min */
		665	case 4: double_data[3] = get_real(infile,0); break;/* Q1 */
		666	case 5: double_data[4] = get_real(infile,0); break;/* median */
		667	case 6: double_data[5] = get_real(infile,0); break;/* Q3 */
		668	case 7: double_data[6] = get_real(infile,1); break;/* max */
		669	default:break;
9427	schaersvoo	670	}
		671	}
		672	decimals = find_number_of_digits(precision);
11806	schaersvoo	673	/function draw_boxplot(canvas_type,xy,hw,cxy,data,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1)/
		674	string_length = snprintf(NULL,0, "draw_boxplot(%d,%d,%.f,%.f,[%.f,%.f,%.f,%.f,%.*f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d);\n",BOXPLOT_CANVAS+boxplot_cnt,int_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4],decimals,double_data[5],decimals,double_data[6],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1]);
		675	check_string_length(string_length);
		676	tmp_buffer = my_newmem(string_length+1);
		677	snprintf(tmp_buffer,string_length, "draw_boxplot(%d,%d,%.f,%.f,[%.f,%.f,%.f,%.f,%.*f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d);\n",BOXPLOT_CANVAS+boxplot_cnt,int_data[0],decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],decimals,double_data[4],decimals,double_data[5],decimals,double_data[6],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1]);
		678	add_to_buffer(tmp_buffer);
		679	boxplot_cnt++;
		680	reset();
		681	break;
		682	case BOXPLOTDATA:
		683	/*
		684	@ boxplotdata some_data
		685	@ 'some_data' are a list of numbers separated by a comma "," (items)
		686	@ only be used before command 'boxplot': the command <a href="#boxplot">'boxplot'</a> will provide the boxplot drawing of the data.
		687	@ xrange 0,100<br />yrange 0,10<br />boxplotdata 11,22,13,15,23,43,12,12,14,2,45,32,44,13,21,24,13,19,35,21,24,23<br />boxplot x,4,5
		688	@ note: wims will not check your data input \| format. use js-error console to debug any problems.
		689	@ a javascript function 'statistics()' will parse the data and calculate the values [min,Q1,median,Q3,max] and hand them to the boxplot draw function.
13959	bpr	690	@ only a single call to 'boxplotdata' can be made.<br />if multiple boxplots should be present in a single canvas, then use multiple calls to command <a href='#boxplot'>boxplot</a>
		691	@%boxplotdata%size 400,400%xrange 0,100%yrange 0,10%strokecolor orange%fillpattern hatch%linewidth 3%strokecolor green%boxplotdata 11,22,13,15,23,43,12,12,14,2,45,32,44,13,21,24,13,19,35,21,24,23%boxplot x,2,2%mouse red,16
11806	schaersvoo	692	*/
		693	if( js_function[DRAW_JSBOXPLOT] != 1 ){ js_function[DRAW_JSBOXPLOT] = 1;}
		694	if( js_function[DRAW_BOXPLOT] != 1 ){ js_function[DRAW_BOXPLOT] = 1;}
		695	fprintf(js_include_file,"var boxplot_source = 1;var jsboxplot_data = [%s];\n",get_string(infile,1));
		696
		697	break;
		698
		699	case CANVASTYPE:
		700	canvas_type = (int) (get_real(infile,1));
		701	/*
		702	@ canvastype TYPE
13987	bpr	703	@ for now only useful before commands filltoborder / floodfill / clickfill etc operations<br />Only the images of this TYPE will be scanned and filled
11806	schaersvoo	704	@ default value of TYPE is DRAG_CANVAS e.g. 5 (all clickable / draggable object are in this canvas)
		705	@ use another TYPE, if you know what you are doing...
		706	@ other possible canvasses (transparent PNG pictures xsize x ysize on top of each other)<ul><li> EXTERNAL_IMAGE_CANVAS 0</li><li> BG_CANVAS 1</li><li> STATIC_CANVAS 2</li><li> MOUSE_CANVAS 3</li><li> GRID_CANVAS 4</li><li> DRAG_CANVAS 5</li><li> DRAW_CANVAS 6</li><li> TEXT_CANVAS 7</li><li> CLOCK_CANVAS 8</li><li> ANIMATE_CANVAS 9</li><li> TRACE_CANVAS 10</li><li>BOXPLOT_CANVAS 11</li><li> JSPLOT_CANVAS 100 , will increase with every call</li><li> FILL_CANVAS 200 , will increase with every call </li><li> USERDRAW_JSPLOT 300 , will increase with every call </li><li>CLICKFILL_CANVAS 400 , will increase with every call/click</li><li>BOXPLOT_CANVAS 500 , will increase with every call</li></ul>
		707	*/
		708	break;
		709
		710	case CENTERSTRING:
		711	/*
		712	@ centerstring color,y-value,the text string
		713	@ title color,y-value,the text string
		714	@ draw a string centered on the canvas at y = y-value
		715	@ can not be set "onclick" or "drag xy" (...)
		716	@ unicode supported: centerstring red,5,\\u2232
12063	schaersvoo	717	@ use a command like 'fontfamily italic 24pt Ariel' <br />to set fonts on browser that support font change
12110	schaersvoo	718	@%centerstring%size 400,400%xrange -10,10%yrange -10,10%bgcolor lightblue%fontfamily italic 22pt Courier%centerstring blue,7,the center
11806	schaersvoo	719	*/
		720	if( js_function[DRAW_CENTERSTRING] != 1 ){ js_function[DRAW_CENTERSTRING] = 1;}
		721	for(i=0;i<3;i++){
		722	switch(i){
		723	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		724	case 1: double_data[0] = get_real(infile,0);break; /* y in xrange*/
		725	case 2: temp = get_string_argument(infile,1);
		726	/* draw_text = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text) */
		727	decimals = find_number_of_digits(precision);
		728	string_length = snprintf(NULL,0,
		729	"draw_centerstring(%d,%.*f,\"%s\",\"%s\",%.2f,\"%s\");\n",canvas_root_id,decimals,double_data[0],font_family,stroke_color,stroke_opacity,temp);
		730	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		731	snprintf(tmp_buffer,string_length,"draw_centerstring(%d,%.*f,\"%s\",\"%s\",%.2f,\"%s\");\n",canvas_root_id,decimals,double_data[0],font_family,stroke_color,stroke_opacity,temp);
		732	add_to_buffer(tmp_buffer);
		733	break;
		734	default:break;
		735	}
9427	schaersvoo	736	}
		737	break;
8386	schaersvoo	738
11806	schaersvoo	739
8386	schaersvoo	740	case CIRCLE:
8299	schaersvoo	741	/*
8386	schaersvoo	742	@ circle xc,yc,width (2*r in pixels),color
9383	schaersvoo	743	@ use command 'fcircle xc,yc,d,color'
		744	@ alternative: disk for a filled circle
8386	schaersvoo	745	@ use command 'fillcolor color' to set the fillcolor
9406	schaersvoo	746	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
8386	schaersvoo	747	@ will shrink / expand on zoom out / zoom in
12110	schaersvoo	748	@%circle%size 400,400%xrange -10,10%yrange -10,10%filled%fillcolor lightblue%opacity 255,50%drag xy%circle 0,0,60,red%zoom red
8299	schaersvoo	749	*/
8386	schaersvoo	750	for(i=0;i<4;i++){
		751	switch(i){
		752	case 0: double_data[0] = get_real(infile,0);break; /* x */
		753	case 1: double_data[1] = get_real(infile,0);break; /* y */
		754	case 2: double_data[2] = px2x((get_real(infile,0))/2) - px2x(0);break; /* for zoom in/out : radius in 'dx' xrange*/
		755	case 3: stroke_color = get_color(infile,1);/* name or hex color */
		756	decimals = find_number_of_digits(precision);
14045	schaersvoo	757	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,13,[%.f],[%.f],[%.3f],[%.3f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[1],double_data[2],double_data[2],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8386	schaersvoo	758	if(onclick > 0){click_cnt++;}
		759	/* click_cnt++;*/
		760	reset();
		761	break;
		762	default : break;
		763	}
		764	}
		765	break;
		766
		767	case CIRCLES:
		768	/*
		769	@ circles color,xc1,yc1,r1,xc2,yc2,r2...xc_n,yc_n,r_n
9383	schaersvoo	770	@ <b>attention</b> r = radius in x-range (!)
		771	@ use keyword 'filled' or command 'fcircles' to produce solid circles
		772	@ alternative : disks for filled circles
8386	schaersvoo	773	@ use command 'fillcolor color' to set the fillcolor
9406	schaersvoo	774	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> (individually)
8386	schaersvoo	775	@ will shrink / expand on zoom out / zoom in
12110	schaersvoo	776	@%circles%size 400,400%xrange -10,10%yrange -10,10%filled%fillcolor lightblue%opacity 255,50%drag xy%circles blue,0,0,2,2,2,3,-3,-3,3,3,3,4,3,-4,2%zoom red
8386	schaersvoo	777	*/
8299	schaersvoo	778	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		779	fill_color = stroke_color;
8386	schaersvoo	780	i=1;
8299	schaersvoo	781	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	782	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
8386	schaersvoo	783	switch (i%3){
		784	case 1:double_data[i-1] = get_real(infile,0);break; /* x */
		785	case 2:double_data[i-1] = get_real(infile,0);break; /* y */
		786	case 0:double_data[i-1] = get_real(infile,1);break; /* r */
8299	schaersvoo	787	}
		788	i++;
		789	}
		790	decimals = find_number_of_digits(precision);
8386	schaersvoo	791	for(c = 0 ; c < i-1 ; c = c+3){
14045	schaersvoo	792	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,13,[%.f],[%.f],[%.3f],[%.3f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+1],double_data[c+2],double_data[c+2],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8379	schaersvoo	793	if(onclick > 0){click_cnt++;}
8386	schaersvoo	794	/* click_cnt++; */
8299	schaersvoo	795	}
		796	reset();
		797	break;
11806	schaersvoo	798	case CLEARBUTTON:
		799	/*
		800	@ clearbutton value
		801	@ alternative : delete
		802	@ alternative : erase
		803	@ adds a button to clear the <a href="#userdraw">userdraw</a> canvas with text 'value'
13936	bpr	804	@ <b>attention</b> command 'clearbutton' is incompatible with <a href="#multidraw">multidraw</a> based drawings<br/>(in 'multidraw' there is always a remove_object_button for every drawprimitive)
11806	schaersvoo	805	@ normally <a href="#userdraw">userdraw</a> primitives have the option to use middle/right mouse button on<br /> a point of the object to remove this specific object...this clear button will remove all drawings
		806	@ uses the tooltip placeholder div element: may not be used with command 'intooltip'
		807	@ use command <a href="#inputstyle">'inputstyle'</a> to style the button...
13935	bpr	808	@ the clearbutton will have id="canvas_scripts[%d]" ; starting with %d=0 for the first script<br />to change the style of all "clearbutton" of all included canvasdraw scripts, use something like<br /><em>if(document.getElementById("clearbutton"+canvas_scripts[0])){<br /> var p = 0;<br /> while(document.getElementById("clearbutton"+canvas_scripts[p])){<br />  document.getElementById("clearbutton"+canvas_scripts[p]).className="some_class_name";<br />  <!−− or document.getElementById("clearbutton"+canvas_scripts[p]).setAttribute("style","some_style"); −−><br />  p++;<br /> };<br />};</em>
		809	@%clearbutton%size 400,400%xrange -10,10%yrange -10,10%filled%fillcolor lightblue%opacity 255,50%userdraw circles,red%clearbutton Remove All
11806	schaersvoo	810	*/
		811	if(reply_format == 29){/* eg multidraw is selected */
14054	schaersvoo	812	// canvas_error("command clearbutton incompatible with multidraw...only suitable for userdraw");
11806	schaersvoo	813	}
		814	add_clear_button(js_include_file,canvas_root_id,input_style,get_string(infile,1));
		815	break;
8386	schaersvoo	816
11806	schaersvoo	817	case CLOCK:
7614	schaersvoo	818	/*
11806	schaersvoo	819	@ clock x,y,r(px),H,M,S,type hourglass,interactive [ ,H_color,M_color,S_color,background_color,foreground_color ]
		820	@ use command 'opacity stroke-opacity,fill-opacity' to adjust foreground (stroke) and background (fill) transparency
		821	@ type hourglass:<br />type = 0 : only segments<br />type = 1 : only numbers<br />type = 2 : numbers and segments
		822	@ colors are optional: if not defined, default values will be used<br />default colours: clock 0,0,60,4,35,45,1,2<br />custom colours: clock 0,0,60,4,35,45,1,2,,,,yellow,red<br />custom colours: clock 0,0,60,4,35,45,1,2,white,green,blue,black,yellow
		823	@ if you don't want a seconds hand (or minutes...), just make it invisible by using the background color of the hourglass...
		824	@ interactive <ul><li>0 : not interactive, just clock(s)</li><li>1 : function read_canvas() will read all active clocks in H:M:S format<br />The active clock(s) can be adjusted by pupils</li><li>2 : function read_canvas() will return the clicked clock <br />(like multiplechoice; first clock in script in nr. 0 )</li><li>3: no prefab buttons...create your own buttons (or other means) to make the clock(s) adjustable by javascript function set_clock(num,type,diff)<br />wherein: num = clock id (starts with 0) ; type = 1 (hours) ; type = 2 (minutes) ; type = 3 (seconds) <br />and diff = the increment of 'type' (positive or negative) </li></ul>
		825	@ canvasdraw will not check validity of colornames...the javascript console is your best friend
		826	@ no combinations with other reply_types allowed, for now
		827	@ if interactive is set to '1', 6 buttons per clock will be displayed for adjusting a clock (H+ M+ S+ H- M- S-)<br /> set_clock(clock_id,type,incr) <br />first clock has clock_id=0 ; type : H=1,M=2,S=3 ; incr : increment integer
		828	@ note: if you need multiple -interactive- clocks on a webpage, use multiple 'clock' commands in a single script !<br />and <i>not multiple canvas scripts</i> in a single page
		829	@ note: clocks will not zoom or pan, when using command <a href='#zoom'>'zoom'</a>
12110	schaersvoo	830	@%clock_1%size 400,400%xrange -10,10%yrange -10,10%clock 0,0,120,4,35,45,0,0,red,green,blue,lightgrey,black
		831	@%clock_2%size 400,400%xrange -10,10%yrange -10,10%clock 0,0,120,4,35,45,1,1,red,green,blue,lightgrey,black
		832	@%clock_3%size 400,400%xrange -10,10%yrange -10,10%clock -5,0,80,4,35,45,2,2,red,green,blue,lightgrey,black%clock 5,0,80,3,15,65,2,2,red,green,blue,lightgrey,black
		833	@%clock_4%size 400,400%xrange -10,10%yrange -10,10%clock 0,0,120,4,35,45,0,0,red,green,blue,lightgrey,black
		834	@%clock_5%size 400,400%xrange -10,10%yrange -10,10%clock 0,0,120,4,35,45,1,1,red,green,blue,lightgrey,black
		835	@%clock_6%size 400,400%xrange -10,10%yrange -10,10%clock -5,0,80,4,35,45,2,2,red,green,blue,lightgrey,black%clock 5,0,80,8,55,15,2,2,red,green,blue,lightgrey,black
		836	@%clock_7%size 400,400%xrange -10,10%yrange -10,10%clock 0,0,120,4,35,45,2,0,red,green,blue,lightgrey,black
7614	schaersvoo	837	*/
11806	schaersvoo	838	if( js_function[DRAW_CLOCK] != 1 ){ js_function[DRAW_CLOCK] = 1;}
		839
		840	/* var clock = function(xc,yc,radius,H,M,S,h_color,m_color,s_color,bg_color,fg_color) */
		841	for(i=0;i<9;i++){
		842	switch(i){
		843	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* xc */
		844	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* yc */
		845	case 2: int_data[2] = get_real(infile,0);break;/* radius in px */
		846	case 3: int_data[3] = get_real(infile,0);break;/* hours */
		847	case 4: int_data[4] = get_real(infile,0);break;/* minutes */
		848	case 5: int_data[5] = get_real(infile,0);break;/* seconds */
		849	case 6: int_data[6] = get_real(infile,0);if(int_data[6] < 0 \|\| int_data[6] > 2){canvas_error("hourglass can be 0,1 or 2");}break;/* type hourglass */
		850	case 7: int_data[7] = (int)(get_real(infile,1));/* interactive 0,1,2*/
		851	switch(int_data[7]){
		852	case 0:break;
		853	case 1:if(clock_cnt == 0){
		854	if( reply_format == 0 ){
		855	reply_format = 18; /* user sets clock */
		856	/* string_length = snprintf(NULL,0,"set_clock = function(num,type,diff){var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
		857	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		858	snprintf(tmp_buffer,string_length,"set_clock = function(num,type,diff){var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
		859	add_to_buffer(tmp_buffer);
		860	*/
		861	fprintf(js_include_file,"set_clock = function(num,type,diff){if(wims_status == \"done\"){return;};var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
		862	}
		863	else
		864	{
		865	canvas_error("interactive clock may not be used together with other reply_types...");
		866	}
		867	}
		868	fprintf(stdout,"<p style=\"text-align:center\"><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,1)\" value=\"H+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,1)\" value=\"M+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,1)\" value=\"S+\" /><br /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,-1)\" value=\"H−\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,-1)\" value=\"M−\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,-1)\" value=\"S−\" /></p>",input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt);
		869	break;
		870	case 3:if(clock_cnt == 0){
		871	if( reply_format == 0 ){
		872	reply_format = 18; /* user sets clock */
		873	fprintf(js_include_file,"set_clock = function(num,type,diff){if(wims_status == \"done\"){return;};var name = eval(\"clocks\"+num);switch(type){case 1:name.H = parseInt(name.H+diff);break;case 2:name.M = parseInt(name.M+diff);break;case 3:name.S = parseInt(name.S+diff);break;default: break;};name = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,1,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};\n");
		874	}
		875	else
		876	{
		877	canvas_error("interactive clock may not be used together with other reply_types...");
		878	}
		879	}
		880	/*
		881	fprintf(stdout,"<p style=\"text-align:center\"><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,1)\" value=\"H+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,1)\" value=\"M+\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,1)\" value=\"S+\" /><br /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,1,-1)\" value=\"H−\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,2,-1)\" value=\"M−\" /><input style=\"%s\" type=\"button\" onclick=\"javascript:set_clock(%d,3,-1)\" value=\"S−\" /></p>",input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt,input_style,clock_cnt);
		882	*/
		883	break;
		884	case 2:if( reply_format == 0 ){
		885	reply_format = 19; /* "onclick */
13970	obado	886	fprintf(js_include_file,"\n/* begin onclick handler for clocks */\nvar reply = new Array();canvas_div.addEventListener( 'mousedown', user_click,false);\n\nfunction user_click(evt){if(evt.which == 1){var canvas_rect = clock_canvas.getBoundingClientRect();var x = evt.clientX - canvas_rect.left;var y = evt.clientY - canvas_rect.top;var p = 0;var name;var t = true;while(t){try{name = eval('clocks'+p);if( x < name.xc + name.radius && x > name.xc - name.radius ){if( y < name.yc + name.radius && y > name.yc - name.radius ){reply[0] = p;name = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,\"lightblue\",name.fg_color);};}else{clock_ctx.clearRect(name.xc-name.radius,name.yc-name.radius,name.xc+name.radius,name.yc+name.radius);name = new clock(name.xc,name.yc,name.radius,name.H,name.M,name.S,name.type,name.interaction,name.H_color,name.M_color,name.S_color,name.bg_color,name.fg_color);};p++;}catch(e){t=false;};};};};\n");
11806	schaersvoo	887	}
		888	else
		889	{
		890	if( reply_format != 19){
		891	canvas_error("clickable clock(s) may not be used together with other reply_types...");
		892	}
		893	}
		894	break;
		895	default: canvas_error("interactive must be set 0,1 or 2");break;
		896	}
		897	break;
		898	case 8:
		899	if(clock_cnt == 0 ){ /* set opacity's just once .... it should be a argument to clock() , for now it's OK */
		900	fprintf(js_include_file,"var clock_bg_opacity = %.2f;var clock_fg_opacity = %.2f;",fill_opacity,stroke_opacity);
		901	}
		902	temp = get_string(infile,3);/* optional colors, like: ,,red,,blue*/
		903	if( strstr( temp,",") != 0 ){ temp = str_replace(temp,",","\",\""); }
		904	else{
		905	/* h_color,m_color,s_color,bg_color,fg_color */
11991	schaersvoo	906	temp = ",black\",\"black\",\"black\",\"white\",\"black";}
11806	schaersvoo	907	string_length = snprintf(NULL,0,"clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
		908	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		909	snprintf(tmp_buffer,string_length,"clocks%d = new clock(%d,%d,%d,%d,%d,%d,%d,%d,\"%s\");\n",clock_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],temp);
		910	add_to_buffer(tmp_buffer);
		911	fprintf(js_include_file,"var clocks%d;",clock_cnt);
		912	clock_cnt++;
		913	break;
		914	default:break;
		915	}
		916	}
		917	break;
		918
		919
		920	case COLORPALETTE:
		921	/*
		922	@ colorpalette color_name_1,color_name_2,...,color_name_8
		923	@ opacity will be the same for all colors and is set by command <a href="#opacity">opacity [0-255],[0-255]</a>
		924	@ can be used with command <a href='#userdraw'>'userdraw clickfill,color'</a> when more than one fillcolor is wanted.<br />in that case use for example <a href='#replyformat'>replyformat 10</a> ... reply=x1:y1:color1,x2:y2:color2...<br />the pupil can choose from the given colors by clicking small coloured buttons.<br /> the click coordinates and corresponding fillcolor will be stored in read_canvas()...when using the appropriate replyformat.<br />the first color of the palette is color=0
13829	bpr	925	@ make sure to include the 'remove button' by using command <a href='#clearbutton'>clearbutton some_text</a>
11806	schaersvoo	926	*/
		927	if( use_tooltip == 1 ){canvas_error("command 'colorpalette' is incompatible with command 'intooltip tip_text'");}
		928	fprintf(js_include_file,"var multifillcolors = [];var palettecolors = [");
		929	while( ! done ){
		930	temp = get_color(infile,1);
		931	fprintf(js_include_file,"\"%s\",",temp);
		932	}
		933	fprintf(js_include_file,"];");/* add black to avoid trouble with dangling comma... */
		934	add_color_palette(js_include_file,canvas_root_id,input_style);
		935	break;
13829	bpr	936
11806	schaersvoo	937	case COPY:
		938	/*
		939	@ copy x,y,x1,y1,x2,y2,[filename URL]
		940	@ The image may be "bitmap" or "SVG"
		941	@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [filename] to (x,y) in x/y-range
		942	@ If x1=y1=x2=y2=-1, the whole [filename URL] is copied.
		943	@ [filename] is the URL of the image
		944	@ URL is normal URL of network reachable image file location<br />(eg special url for 'classexo' not -yet- implemented)
		945	@ if command <a href="#drag">'drag x/y/xy'</a> is set before command 'copy', the images will be draggable<br />javascript function read_canvas(); will return the x/y coordinate data in xrange/yrange of all -including non draggable- images<br />the command drag is only valid for the next image<br />draggable / non-draggable images may be mixed<br />may be used together with preceding keywords 'snaptogrid','xsnaptogrid','ysnaptogrid' or 'snaptopoints x1,y1,x2,y2...'
		946	@ if keyword <a href="#onclick">'onclick'</a> is set before command 'copy' the image(s) is clickable (marked with a green rectangle around the image)<br />use 'read_dragdrop' to get the number of the clicked image(s)<br />use command 'clearbutton some_text' to reset the reply/click array.<br />example: 4 images; student clicked on image 2 and 3 : reply = 0,1,1,0<br />after clicking the clear button: reply = 0,0,0,0<br />May be mixed with commands 'drag x\|y\|xy' (use javascript read_canvas to get the new coordinates
		947	@ 'onclick' for external images may be mixed with canvas generated stuff (like lines,curves etc)
		948	@ you may draw / userdraw / drag other stuff on top of an "imported" image
14038	schaersvoo	949	@ when set draggable, there will be special function 'read_canvas_images()'<br />now dragging external images may be combined with 'read_canvas()' from <a href='#userdraw'>userdraw</a> or <a href='#multidraw'>multidraw</a><br />set command <a href='#precision'>precision</a> before command 'copy'
		950	@ use keyword <a href='#centered'>centered</a> before command 'copy' to place image center at given coordinates.
13967	schaersvoo	951	@%copy_onclick%size 400,400%xrange -10,10%yrange -10,10%onclick%copy -5,5,-1,-1,-1,-1,gifs/fr.gif%onclick%copy 5,5,-1,-1,-1,-1,gifs/en.gif%onclick%copy 5,-5,-1,-1,-1,-1,gifs/it.gif%onclick%copy -5,-5,-1,-1,-1,-1,gifs/cn.gif
		952	@%copy_drag_xy%size 400,400%xrange -10,10%yrange -10,10%# attention : left mouse click on the image will activate dragging...%# keep left mouse button pressed while moving the image !%drag xy%copy -5,5,-1,-1,-1,-1,gifs/fr.gif%drag xy%copy 5,5,-1,-1,-1,-1,gifs/en.gif%drag xy%copy 5,-5,-1,-1,-1,-1,gifs/it.gif%drag xy%copy -5,-5,-1,-1,-1,-1,gifs/cn.gif
14038	schaersvoo	953	@%copy_drag_xy_snaptogrid%size 400,400%xrange -10,10%yrange -10,10%grid 2,2,grey%# attention : left mouse click on the image will activate dragging...%# keep left mouse button pressed while moving the image !%drag xy%# a function read_canvas_images() %copy -6,6,-1,-1,-1,-1,gifs/fr.gif%snaptogrid%drag xy%copy 6,6,-1,-1,-1,-1,gifs/en.gif%snaptogrid%drag xy%copy 6,-6,-1,-1,-1,-1,gifs/it.gif%snaptogrid%drag xy%copy -6,-6,-1,-1,-1,-1,gifs/cn.gif
11806	schaersvoo	954	*/
		955	for(i = 0 ; i<7;i++){
7614	schaersvoo	956	switch(i){
11806	schaersvoo	957	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x left top corner in x/y range */
		958	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y left top corner in x/y range */
		959	case 2: int_data[2]=(int)(get_real(infile,0));break;/* x1 in px of external image */
		960	case 3: int_data[3]=(int)(get_real(infile,0));break;/* y1 in px of external image */
		961	case 4: int_data[4]=(int)(get_real(infile,0));break;/* x2 --> width */
		962	case 5: int_data[5]=(int)(get_real(infile,0)) ;break;/* y2 --> height */
		963	case 6: URL = get_string(infile,1);
		964	int_data[6] = int_data[4] - int_data[2];/* swidth & width (if not scaling )*/
		965	int_data[7] = int_data[5] - int_data[3];/* sheight & height (if not scaling )*/
		966	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		967	int_data[9] = click_cnt;
		968	if( drag_type > -1 ){/* e.g. we are dragging images x/y/xy */
14038	schaersvoo	969	//if( reply_format == 0 ){ reply_format = 20; }
11806	schaersvoo	970	int_data[8] = 2;/* drag & drop */
14044	schaersvoo	971	if(use_offset == 0 ){use_offset = 4;} /* mouse is attached to the center of the image !! */
11806	schaersvoo	972	}
		973	else
		974	{
		975	if( onclick == 1 ){
14038	schaersvoo	976	// reply_format = 20;
11806	schaersvoo	977	int_data[8] = 1; /* onclick will be reset using 'void reset()'*/
		978	click_cnt++; /* will also be used in dragstuff ! */
		979	}
		980	else
		981	{
		982	int_data[8] = 0; /* just static image */
		983	}
		984	}
14038	schaersvoo	985	if( include_special_OEF_reply == FALSE){
		986	if( int_data[8] == 1 \|\| int_data[8] == 2 ){
		987	include_special_OEF_reply = TRUE;
		988	fprintf(js_include_file,"\
		989	\n/* begin special OEF function (replyformat 34) read_canvas_images() \\n note: only suitable for reading a single canvas in exercise page */\n\
		990	read_canvas_images = function(){\
		991	var prec = %d;\
		992	var len = ext_drag_images.length;\
		993	var reply = new Array(len);\
		994	for(var p = 0 ; p < len ; p++){\
		995	var img = ext_drag_images[p];\
		996	reply[p] = p+\":\"+(Math.round(prec(px2x(img[6]))))/prec+\":\"+(Math.round(prec(px2y(img[7]))))/prec;\
		997	};\
		998	return reply;\
		999	};\n\
		1000	/* end function 20 read_canvas_images() */",reply_precision);
		1001	}
		1002	}
11806	schaersvoo	1003	/*
		1004	function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,ext_img_cnt,resizable,draggable,click_cnt)
		1005	*/
14044	schaersvoo	1006	string_length = snprintf(NULL,0, "draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,0,%d,%d,%d,%d);\n",URL,int_data[2],int_data[3],int_data[6],int_data[7],int_data[0],int_data[1],int_data[6],int_data[7],ext_img_cnt,int_data[8],int_data[9],use_offset,use_snap);
11806	schaersvoo	1007	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
14044	schaersvoo	1008	snprintf(tmp_buffer,string_length,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,0,%d,%d,%d,%d);\n",URL,int_data[2],int_data[3],int_data[6],int_data[7],int_data[0],int_data[1],int_data[6],int_data[7],ext_img_cnt,int_data[8],int_data[9],use_offset,use_snap);
14038	schaersvoo	1009	add_to_buffer(tmp_buffer);
11806	schaersvoo	1010	drag_type = -1; /* reset the drag_type indicator */
		1011	ext_img_cnt++;
		1012	onclick=0;
14038	schaersvoo	1013	use_offset=0;
		1014	reset();
11806	schaersvoo	1015	break;
7614	schaersvoo	1016	default: break;
		1017	}
		1018	}
		1019	break;
11806	schaersvoo	1020	/*
		1021	HTML5 specs:
		1022	context.drawImage(img,sx,sy,swidth,sheight,x,y,width,height);
		1023	img Specifies the image, canvas, or video element to use
		1024	sx The x coordinate where to start clipping : x1 = int_data[0]
		1025	sy The y coordinate where to start clipping : x2 = int_data[1]
		1026	swidth The width of the clipped image : int_data[2] - int_data[0]
		1027	sheight The height of the clipped image : int_data[3] - int_data[1]
		1028	x The x coordinate where to place the image on the canvas : dx1 = int_data[4]
		1029	y The y coordinate where to place the image on the canvas : dy1 = int_data[5]
		1030	width The width of the image to use (stretch or reduce the image) : dx2 - dx1 = int_data[6]
		1031	height The height of the image to use (stretch or reduce the image) : dy2 - dy1 = int_data[7]
		1032	*/
		1033	case COPYRESIZED:
		1034	/*
		1035	@ copyresized x1,y2,x2,y2,dx1,dy1,dx2,dy2,image_file_url
		1036	@ The image may be any "bitmap" or "SVG"
		1037	@ Insert the region from (x1,y1) to (x2,y2) (in pixels) of [ filename], <br />possibly resized,<br />to the region of (dx1,dy1) to (dx2,dy2) in x/y-range
		1038	@ (dx1:dy1) must be left top corner; (dx2 :dy2) must be right bottom corner of inserted image
		1039	@ If x1=y1=x2=y2=-1, the whole [filename / URL ] is copied and resized.
		1040	@ URL is normal URL of network reachable image file location<br />(as seen from public_html-root or network reachable 'http://some_server/my_images/test.gif'<br />(eg no special wims paths are searched !!)
		1041	@ if command <a href="#drag">'drag x/y/xy'</a> is set before command 'copy', the images will be draggable<br />javascript function read_canvas(); will return the x/y coordinate data in xrange/yrange of all -including non draggable- images<br />the command drag is only valid for the next image<br />draggable / non-draggable images may be mixed<br />may be used together with preceding keywords 'snaptogrid','xsnaptogrid','ysnaptogrid' or 'snaptopoints x1,y1,x2,y2...'
		1042	@ if keyword <a href="#onclick">'onclick'</a> is set before command 'copy' the image(s) is clickable (marked with a green rectangle around the image)<br />use 'read_dragdrop' to get the number of the clicked image(s)<br />use command 'clearbutton some_text' to reset the reply/click array.<br />example: 4 images; student clicked on image 2 and 3 : reply = 0,1,1,0<br />after clicking the clear button: reply = 0,0,0,0<br />May be mixed with commands 'drag x\|y\|xy' (use javascript read_canvas to get the new coordinates
		1043	@ 'onclick' for external images may be mixed with canvas generated stuff (like lines,curves etc)
		1044	@ you may draw / userdraw / drag stuff on top of an "imported" image
14038	schaersvoo	1045	@ when set draggable, there will be special function 'read_canvas_images()'<br />now dragging external images may be combined with 'read_canvas()' from <a href='#userdraw'>userdraw</a> or <a href='#multidraw'>multidraw</a><br />set command <a href='#precision'>precision</a> before command 'copy'
		1046	@ use keyword <a href='#centered'>centered</a> before command 'copyresized' to place image center at given coordinates.
11806	schaersvoo	1047	*/
		1048	for(i = 0 ; i<9;i++){
		1049	switch(i){
		1050	case 0: int_data[0] = (int)(get_real(infile,0));break; /* x1 */
		1051	case 1: int_data[1] = (int)(get_real(infile,0));break; /* y1 */
		1052	case 2: int_data[2] = (int)(get_real(infile,0));break;/* x2 */
		1053	case 3: int_data[3] = (int)(get_real(infile,0));break;/* y2 */
		1054	case 4: int_data[4] = x2px(get_real(infile,0));break;/* dx1 */
		1055	case 5: int_data[5] = y2px(get_real(infile,0));break;/* dy1 */
		1056	case 6: int_data[6] = x2px(get_real(infile,0));break;/* dx2 */
		1057	case 7: int_data[7] = y2px(get_real(infile,0));break;/* dy2 */
		1058	case 8: URL = get_string(infile,1);
		1059	/* flag error when wrong diagonal: copyresized -1,-1,-1,-1,0,0,7,7,testfig.gif */
		1060	if( int_data[7] < int_data[5] \|\| int_data[6] < int_data[4]){
		1061	canvas_error("in copyresized , use:<br />left top corner (dx1:dy1) and right bottom corner (dx2:dy2) ! ");
		1062	}
		1063	int_data[2] = abs(int_data[2] - int_data[0]);/* swidth */
		1064	int_data[3] = abs(int_data[3] - int_data[1]);/* sheight */
		1065	int_data[6] = abs(int_data[6] - int_data[4]);/* width */
		1066	int_data[7] = abs(int_data[7] - int_data[5]);/* height */
		1067	if( js_function[DRAW_EXTERNAL_IMAGE] != 1 ){ js_function[DRAW_EXTERNAL_IMAGE] = 1;}
		1068	int_data[9] = click_cnt;
		1069	if( drag_type > -1 ){/* e.g. we are dragging images x/y/xy */
14038	schaersvoo	1070	// if( reply_format == 0 ){ reply_format = 20; }
11806	schaersvoo	1071	int_data[8] = 2;/* drag & drop */
		1072	}
		1073	else
		1074	{
		1075	if( onclick == 1 ){
14038	schaersvoo	1076	// reply_format = 20;
11806	schaersvoo	1077	int_data[8] = 1; /* onclick will be reset using 'void reset()'*/
		1078	click_cnt++; /* will also be used in dragstuff ! */
		1079	}
		1080	else
		1081	{
		1082	int_data[8] = 0; /* just static image */
		1083	}
		1084	}
14038	schaersvoo	1085	if( include_special_OEF_reply == FALSE){
		1086	if( int_data[8] == 1 \|\| int_data[8] == 2 ){
		1087	include_special_OEF_reply = TRUE;
		1088	fprintf(js_include_file,"\
		1089	\n/* begin special OEF function (replyformat 34) read_canvas_images() \\n note: only suitable for reading a single canvas in exercise page */\n\
		1090	read_canvas_images = function(){\
		1091	var prec = %d;\
		1092	var len = ext_drag_images.length;\
		1093	var reply = new Array(len);\
		1094	for(var p = 0 ; p < len ; p++){\
		1095	var img = ext_drag_images[p];\
		1096	reply[p] = p+\":\"+(Math.round(prec(px2x(img[6]))))/prec+\":\"+(Math.round(prec(px2y(img[7]))))/prec;\
		1097	};\
		1098	return reply;\
		1099	};\n\
		1100	/* end function 20 read_canvas_images() */",reply_precision);
		1101	}
		1102	}
		1103
11806	schaersvoo	1104	/*
		1105	(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,resizable,draggable,click_cnt)
		1106	URL,[2],[3],[6], [7], [4],[5],[6],[7],ext_img_cnt,1, [8], [9]
		1107	*/
14044	schaersvoo	1108	string_length = snprintf(NULL,0, "draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,1,%d,%d,%d,%d);\n",URL,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],ext_img_cnt,int_data[8],int_data[9],use_offset,use_snap);
11806	schaersvoo	1109	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
14044	schaersvoo	1110	snprintf(tmp_buffer,string_length,"draw_external_image(\"%s\",%d,%d,%d,%d,%d,%d,%d,%d,%d,1,%d,%d,%d,%d);\n",URL,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],ext_img_cnt,int_data[8],int_data[9],use_offset,use_snap);
14038	schaersvoo	1111	add_to_buffer(tmp_buffer);
11806	schaersvoo	1112	drag_type = -1; /* reset the drag_type indicator */
		1113	ext_img_cnt++;
		1114	onclick=0;
14038	schaersvoo	1115	use_offset=0;
		1116	reset();
11806	schaersvoo	1117	break;
		1118	default: break;
		1119	}
		1120	}
14038	schaersvoo	1121	reset();
11806	schaersvoo	1122	break;
8386	schaersvoo	1123
11806	schaersvoo	1124	case CROSSHAIR:
8386	schaersvoo	1125	/*
11806	schaersvoo	1126	@ crosshair x,y,color
		1127	@ draw a single crosshair point at (x;y) in color 'color'
		1128	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
		1129	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12107	schaersvoo	1130	@%crosshair%size 400,400%xrange -10,10%yrange -10,10%opacity 255,255%linewidth 2%onclick%crosshair 0,0,red%linewidth 1%onclick%crosshair 1,1,blue%linewidth 3%onclick%crosshair 3,3,green%linewidth 4%xrosshair 4,4,orange
11806	schaersvoo	1131	*/
		1132	for(i=0;i<3;i++){
		1133	switch(i){
		1134	case 0: double_data[0] = get_real(infile,0);break; /* x */
		1135	case 1: double_data[1] = get_real(infile,0);break; /* y */
		1136	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		1137	decimals = find_number_of_digits(precision);
14045	schaersvoo	1138	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,7,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[1],crosshair_size,crosshair_size,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	1139	if(onclick > 0){click_cnt++;}
		1140	/* click_cnt++ */
		1141	reset();
		1142	break;
		1143	default:break;
		1144	}
		1145	}
		1146	break;
		1147
		1148	case CROSSHAIRS:
		1149	/*
		1150	@ crosshairs color,x1,y1,x2,y2,...,x_n,y_n
		1151	@ draw multiple crosshair points at given coordinates in color 'color'
		1152	@ use command 'crosshairsize int' and / or 'linewidth int' to adust
9406	schaersvoo	1153	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
12107	schaersvoo	1154	@%crosshairs_1%size 400,400%xrange -10,10%yrange -10,10%opacity 255,255%snaptogrid%linewidth 2%drag xy%crosshairs red,0,0,1,1,2,2,3,3%drag x%crosshairs blue,0,1,1,2,2,3,3,4
		1155	@%crosshairs_2%size 400,400%xrange -10,10%yrange -10,10%opacity 255,255%linewidth 2%onclick%crosshairs red,0,0,1,1,2,2,3,3%onclick%crosshairs blue,0,1,1,2,2,3,3,4
		1156	*/
8386	schaersvoo	1157	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		1158	fill_color = stroke_color;
		1159	i=0;
		1160	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	1161	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
8386	schaersvoo	1162	if(i%2 == 0 ){
		1163	double_data[i] = get_real(infile,0); /* x */
		1164	}
		1165	else
		1166	{
		1167	double_data[i] = get_real(infile,1); /* y */
		1168	}
		1169	i++;
		1170	}
		1171	decimals = find_number_of_digits(precision);
11806	schaersvoo	1172	for(c=0 ; c < i-1 ; c = c+2){
14045	schaersvoo	1173	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,7,[%.f],[%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+1],crosshair_size,crosshair_size,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8386	schaersvoo	1174	if(onclick > 0){click_cnt++;}
11806	schaersvoo	1175	/* click_cnt++; */
8386	schaersvoo	1176	}
		1177	reset();
		1178	break;
		1179
11806	schaersvoo	1180	case CROSSHAIRSIZE:
7614	schaersvoo	1181	/*
11806	schaersvoo	1182	@ crosshairsize int
		1183	@ default 8 (px)
7614	schaersvoo	1184	*/
11806	schaersvoo	1185	crosshair_size = (int) (get_real(infile,1));
		1186	break;
		1187
		1188	case CURSOR:
		1189	/*
		1190	@ cursor 'some CSS cursor_style'
		1191	@ alternative : pointer
13956	schaersvoo	1192	@ style can be any valid CSS property value
		1193	@ choose from these types:<br />alias,all-scroll,auto,cell,context-menu,col-resize,copy,crosshair,default,e-resize,<br />ew-resize,grab,grabbing,help,move,n-resize,ne-resize,nesw-resize,ns-resize,nw-resize,<br />nwse-resize,no-drop,none,not-allowed,pointer,progress,row-resize,s-resize,se-resize,<br />sw-resize,text,url(myBall.cur),auto,vertical-text,w-resize,wait,zoom-in,zoom-out,initial
		1194	@ note: wims will not check the validity of your cursor declaration
		1195	@%cursor_css%size 400,400%xrange -10,10%yrange -10,10%cursor move%linewidth 3%drag xy%opacity 200,75%fcircles blue,-5,5,3,-4,-2,6,0,0,5,3,4,2,4,-5,4
11806	schaersvoo	1196	*/
		1197	fprintf(js_include_file,"canvas_div%d.style.cursor = \"%s\";",canvas_root_id,get_string(infile,1));
		1198	break;
		1199
		1200	case CURVE:
		1201	/*
		1202	@ curve color,formula(x)
		1203	@ alernative : plot color,formula(x)
		1204	@ use command <a href="#trange">trange</a> in parametric functions before command curve / plot (trange -pi,pi)<br />curve color,formula1(t),formula2(t)
		1205	@ use command <a href="#precision">"precision" </a>to ncrease the number of digits of the plotted points
		1206	@ use command <a href="#plotsteps">"plotsteps"</a> to increase / decrease the amount of plotted points (default 150)
		1207	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		1208	@ if you need a plot beyond xrange / yrange, use <a href="#jsplot">"jsplot"'</a><br />(command "curve" will only calculate points within the xrange)
12107	schaersvoo	1209	@%curve%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%xlabel x-axis%ylabel y-axis%precision 1%grid 2,2,grey,2,2,6,grey%precision 1000%curve red,4sqrt(x)%curve green,2sqrt(abs(x)%curve blue,31/sqrt(x)%curve orange,4sin(4/x)%dashed%curve red,4*cos(x)
11806	schaersvoo	1210	*/
		1211	if( use_parametric == TRUE ){ /* parametric color,fun1(t),fun2(t)*/
		1212	use_parametric = FALSE;
		1213	stroke_color = get_color(infile,0);
		1214	char *fun1 = get_string_argument(infile,0);
		1215	char *fun2 = get_string_argument(infile,1);
		1216	if( strlen(fun1) == 0 \|\| strlen(fun2) == 0 ){canvas_error("parametric functions are NOT OK !");}
14045	schaersvoo	1217	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,9,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,eval_parametric(xsize,ysize,fun1,fun2,xmin,xmax,ymin,ymax,tmin,tmax,plot_steps,precision),2line_width,2line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	1218	}
		1219	else
		1220	{
		1221	stroke_color = get_color(infile,0);
		1222	char *fun1 = get_string_argument(infile,1);
		1223	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
14045	schaersvoo	1224	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,9,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,eval(xsize,ysize,fun1,xmin,xmax,ymin,ymax,plot_steps,precision),line_width,line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	1225	}
		1226	if(onclick > 0){click_cnt++;}
		1227	/* click_cnt++; */
		1228	reset();
		1229	break;
14038	schaersvoo	1230	case CURVEDARROW:
		1231	/*
		1232	@ curvedarrow x1,y1,xc,yc,x2,y2,color
		1233	@ draw a single headed curved arrow from (x1:y1) in direction of (xc:yc) to point (x3:y3)<br /> note: the curve will <b>not go through</b> point (xc:yc)
		1234	@ use command <a href='#arrowhead'>arrowhead</a> to set the size of the arrow head.
		1235	@ use command 'linewidth int' to adjust thickness of the arrow
		1236	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		1237	@%curvedarrow_drag%size 400,400%xrange -10,10%yrange -10,10%cursor move%linewidth 2%drag xy%curvedarrow -5,0,0,10,5,0,blue
		1238	@%curvedarrow_click%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%%onclick%curvedarrow -5,0,0,-10,5,0,blue%onclick%curvedarrow -8,0,0,5,8,3,green
11806	schaersvoo	1239
14029	schaersvoo	1240	h[0] = arrowhead
		1241	h[1] = type : 1 = single 2=double arrow
		1242	function Shape(click_cnt,onclick,direction,type,x,y,w,h,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1,use_rotate,angle,text,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern)
14038	schaersvoo	1243	*/
		1244	for(i=0;i<7;i++){
		1245	switch(i){
		1246	case 0: double_data[0] = get_real(infile,0);break; /* x1 */
		1247	case 1: double_data[1] = get_real(infile,0);break; /* y1 */
		1248	case 2: double_data[2] = get_real(infile,0);break; /* xc */
		1249	case 3: double_data[3] = get_real(infile,0);break; /* yc */
		1250	case 4: double_data[4] = get_real(infile,0);break; /* y3 */
		1251	case 5: double_data[5] = get_real(infile,0);break; /* y3 */
		1252	case 6: stroke_color = get_color(infile,1);/* name or hex color */
		1253	decimals = find_number_of_digits(precision);
14045	schaersvoo	1254	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,21,[%.f,%.f,%.f],[%.f,%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[4],decimals,double_data[1],decimals,double_data[3],decimals,double_data[5],arrow_head,arrow_head,arrow_head,1,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
14038	schaersvoo	1255	if(onclick > 0){click_cnt++;}
		1256	/* click_cnt++;*/
		1257	reset();
		1258	break;
		1259	}
		1260	}
		1261	break;
14029	schaersvoo	1262
14038	schaersvoo	1263	case CURVEDARROW2:
		1264	/*
		1265	@ curvedarrow2 x1,y1,xc,yc,x2,y2,color
		1266	@ draw a double headed curved arrow from (x1:y1) in direction of (xc:yc) to point (x3:y3)<br /> note: the curve will <b>not go through</b> point (xc:yc)
		1267	@ use command <a href='#arrowhead'>arrowhead</a> to set the size of the arrow head.
		1268	@ use command 'linewidth int' to adjust thickness of the arrow
		1269	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		1270	@%curvedarrow_drag%size 400,400%xrange -10,10%yrange -10,10%cursor move%linewidth 2%drag xy%curvedarrow2 -5,0,0,10,5,0,blue
		1271	@%curvedarrow_click%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%%onclick%cuvedarrow2 -5,0,0,-10,5,0,blue%onclick%curvedarrow -8,0,0,5,8,3,green
14029	schaersvoo	1272
		1273	h[0] = arrowhead
		1274	h[1] = type : 1 = single 2=double arrow
		1275	function Shape(click_cnt,onclick,direction,type,x,y,w,h,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1,use_rotate,angle,text,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern)
14038	schaersvoo	1276	*/
		1277	for(i=0;i<7;i++){
		1278	switch(i){
		1279	case 0: double_data[0] = get_real(infile,0);break; /* x1 */
		1280	case 1: double_data[1] = get_real(infile,0);break; /* y1 */
		1281	case 2: double_data[2] = get_real(infile,0);break; /* xc */
		1282	case 3: double_data[3] = get_real(infile,0);break; /* yc */
		1283	case 4: double_data[4] = get_real(infile,0);break; /* y3 */
		1284	case 5: double_data[5] = get_real(infile,0);break; /* y3 */
		1285	case 6: stroke_color = get_color(infile,1);/* name or hex color */
		1286	decimals = find_number_of_digits(precision);
14045	schaersvoo	1287	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,21,[%.f,%.f,%.f],[%.f,%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[4],decimals,double_data[1],decimals,double_data[3],decimals,double_data[5],arrow_head,arrow_head,arrow_head,2,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
14038	schaersvoo	1288	if(onclick > 0){click_cnt++;}
		1289	/* click_cnt++;*/
		1290	reset();
		1291	break;
		1292	}
		1293	}
		1294	break;
		1295	case CURVEDARROWS:
		1296	/*
		1297	@ curvedarrow color,x1,y1,xc,yc,x2,y2,...x_(n-1),y_(n-1),xc,yc,x_n,y_n
		1298	@ draw a single headed curved arrows from (x1:y1) in direction of (xc:yc) to point (x3:y3)<br /> note: the curve will <b>not go through</b> point (xc:yc)
		1299	@ use command <a href='#arrowhead'>arrowhead</a> to set the size of the arrow head.
		1300	@ use command 'linewidth int' to adjust thickness of the arrow
		1301	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		1302	@%curvedarrows_drag%size 400,400%xrange -10,10%yrange -10,10%cursor move%linewidth 2%drag xy%curvedarrows red,-8,0,0,8,8,0,-5,5,0,-10,6,3
		1303	@%curvedarrows_click%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%%onclick%curvedarrows red,-8,0,0,8,8,0,-5,5,0,-10,6,3
14029	schaersvoo	1304
14030	schaersvoo	1305	h[0] = arrowhead
		1306	h[1] = type : 1 = single 2=double arrow
		1307	function Shape(click_cnt,onclick,direction,type,x,y,w,h,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1,use_rotate,angle,text,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern)
14038	schaersvoo	1308	*/
		1309	stroke_color = get_color(infile,0);/* name or hex color */
		1310	i = 0;
		1311	decimals = find_number_of_digits(precision);
		1312	while( ! done ){
		1313	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
		1314	double_data[0] = get_real(infile,0); /* x1 */
		1315	double_data[1] = get_real(infile,0); /* y1 */
		1316	double_data[2] = get_real(infile,0); /* xc */
		1317	double_data[3] = get_real(infile,0); /* yc */
		1318	double_data[4] = get_real(infile,0); /* x3 */
		1319	double_data[5] = get_real(infile,1); /* y3 */
14045	schaersvoo	1320	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,21,[%.f,%.f,%.f],[%.f,%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[4],decimals,double_data[1],decimals,double_data[3],decimals,double_data[5],arrow_head,arrow_head,arrow_head,1,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
14038	schaersvoo	1321	if(onclick > 0){click_cnt++;}
		1322	i = i + 6;
		1323	}
		1324	reset();
		1325	break;
14030	schaersvoo	1326
14038	schaersvoo	1327	case CURVEDARROWS2:
		1328	/*
		1329	@ curvedarrows2 color,x1,y1,xc,yc,x2,y2,...x_(n-1),y_(n-1),xc,yc,x_n,y_n
		1330	@ draw a double headed curved arrows from (x1:y1) in direction of (xc:yc) to point (x3:y3)<br /> note: the curve will <b>not go through</b> point (xc:yc)
		1331	@ use command <a href='#arrowhead'>arrowhead</a> to set the size of the arrow head.
		1332	@ use command 'linewidth int' to adjust thickness of the arrow
		1333	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		1334	@%curvedarrows2_drag%size 400,400%xrange -10,10%yrange -10,10%cursor move%linewidth 2%drag xy%curvedarrows2 red,-8,0,0,8,8,0,-5,5,0,-10,6,3
		1335	@%curvedarrows2_click%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%%onclick%curvedarrow -5,0,0,-10,5,0,blue%onclick%curvedarrows2 red,-8,0,0,8,8,0,-5,5,0,-10,6,3
14030	schaersvoo	1336
		1337	h[0] = arrowhead
		1338	h[1] = type : 1 = single 2=double arrow
		1339	function Shape(click_cnt,onclick,direction,type,x,y,w,h,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1,use_rotate,angle,text,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern)
14038	schaersvoo	1340	*/
		1341	stroke_color = get_color(infile,0);/* name or hex color */
		1342	i = 0;
		1343	decimals = find_number_of_digits(precision);
		1344	while( ! done ){
		1345	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
		1346	double_data[0] = get_real(infile,0); /* x1 */
		1347	double_data[1] = get_real(infile,0); /* y1 */
		1348	double_data[2] = get_real(infile,0); /* xc */
		1349	double_data[3] = get_real(infile,0); /* yc */
		1350	double_data[4] = get_real(infile,0); /* x3 */
		1351	double_data[5] = get_real(infile,1); /* y3 */
14045	schaersvoo	1352	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,21,[%.f,%.f,%.f],[%.f,%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[4],decimals,double_data[1],decimals,double_data[3],decimals,double_data[5],arrow_head,arrow_head,arrow_head,2,line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
14038	schaersvoo	1353	if(onclick > 0){click_cnt++;}
		1354	i = i + 6;
		1355	}
		1356	reset();
		1357	break;
11806	schaersvoo	1358	case DASHED:
		1359	/*
		1360	@ dashed
		1361	@ keyword (no arguments required)
		1362	@ next object will be drawn with a dashed line
		1363	@ change dashing scheme by using command <a href="#dashtype">dashtype</a>
12107	schaersvoo	1364	@%dashed%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%line -5,-5,-5,5,red%dashtype 1,1%dline -4,-5,-4,5,green%dashtype 2,2%dline -3,-5,-3,5,blue%dashtype 3,3%dline 0,-5,0,5,orange%dashtype 4,4%dline 3,-5,3,5,brown
11806	schaersvoo	1365	*/
		1366	use_dashed = TRUE;
		1367	break;
		1368
		1369	case DASHTYPE:
		1370	/*
		1371	@ dashtype line_width_px,space_width_px
		1372	@ every indiviual object may have its own dashtype, if needed...
		1373	@ When keyword <a href='#dashed'>dashed</a> is set, the objects will be drawn with this dashtype
		1374	@ default value "dashtype 2,2" e.g. 2px line and 2px space
13957	schaersvoo	1375	@ HTML5 canvas specification supports more arguments (dashing schemes) ... but not all modern browsers are yet capable
13949	schaersvoo	1376	@%dashtype%size 400,400%xrange -10,10%yrange -10,10%dashtype 1,1%dhline 0,9,red%dashtype 2,2%dhline 0,8,red%dashtype 4,4%dhline 0,7,red%dashtype 6,6%dhline 0,6,red%dashtype 8,8%dhline 0,5,red%dashtype 10,10%dhline 0,4,red%dashtype 1,2%dhline 0,3,red%dashtype 2,4%dhline 0,2,red%dashtype 3,6%dhline 0,1,red%dashtype 4,8%dhline 0,0,red%linewidth 2%dashtype 1,1%dhline 0,-9,red%dashtype 2,2%dhline 0,-8,red%dashtype 4,4%dhline 0,-7,red%dashtype 6,6%dhline 0,-6,red%dashtype 8,8%dhline 0,-5,red%dashtype 10,10%dhline 0,-4,red%dashtype 1,2%dhline 0,-3,red%dashtype 2,4%dhline 0,-2,red%dashtype 4,8%dhline 0,-1,red
11806	schaersvoo	1377	*/
		1378	for(i=0;i<2;i++){
		1379	switch(i){
		1380	case 0 : dashtype[0] = (int) line_width*( get_real(infile,0)) ; break;
		1381	case 1 : dashtype[1] = (int) line_width*( get_real(infile,1)) ; break;
		1382	}
		1383	}
		1384	break;
		1385
		1386	case DIAMONDFILL:
		1387	/*
		1388	@ diamondfill x0,y0,dx,dy,color
		1389	@ x0,y0 in xrange / yrange
		1390	@ distances dx,dy in pixels
13936	bpr	1391	@ there is also a command <a href="#userdraw">userdraw diamondfill,color</a>
12110	schaersvoo	1392	@%diamondfill%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%circles red,-4,0,6,4,0,6%linewidth 1%diamondfill 0,0,5,8,blue%diamondfill 0,7,8,8,lightgreen
11806	schaersvoo	1393	*/
		1394	if( js_function[DRAW_DIAMONDFILL] != 1 ){ js_function[DRAW_DIAMONDFILL] = 1;}
11820	schaersvoo	1395	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1396	js_function[DRAW_FILLTOBORDER] = 1;
		1397	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1398	}
		1399	decimals = find_number_of_digits(precision);
7614	schaersvoo	1400	for(i=0;i<5;i++){
		1401	switch(i){
11820	schaersvoo	1402	case 0: double_data[0] = get_real(infile,0); break; /* x */
14032	schaersvoo	1403	case 1: double_data[1] = get_real(infile,0); break; /* y */
11820	schaersvoo	1404	case 2: int_data[0] = (int) (get_real(infile,0)); break; /* dx pixel */
		1405	case 3: int_data[1] = (int) (get_real(infile,0)); break; /* dy pixel*/
11806	schaersvoo	1406	case 4: stroke_color = get_color(infile,1);
		1407	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
14032	schaersvoo	1408	string_length = snprintf(NULL,0, "draw_diamondfill(%d,%.f,%.f,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],line_width,stroke_color,stroke_opacity,xsize,ysize);
11806	schaersvoo	1409	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11820	schaersvoo	1410	snprintf(tmp_buffer,string_length,"draw_diamondfill(%d,%.f,%.f,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],line_width,stroke_color,stroke_opacity,xsize,ysize);
11806	schaersvoo	1411	add_to_buffer(tmp_buffer);
11820	schaersvoo	1412	fill_cnt++;
11806	schaersvoo	1413	break;
		1414	default:break;
		1415	}
		1416	}
		1417	reset();
		1418	break;
8224	bpr	1419
11806	schaersvoo	1420	case DOTFILL:
		1421	/*
		1422	@ dotfill x0,y0,dx,dy,color
		1423	@ x0,y0 in xrange / yrange
		1424	@ distances dx,dy in pixels
		1425	@ radius of dots is linewidth
13936	bpr	1426	@ there is also a command <a href="#userdraw">userdraw dotfill,color</a>
12110	schaersvoo	1427	@%dotfill%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%circles red,-4,0,6,4,0,6%dotfill 0,0,5,8,blue%dotfill 0,7,8,8,lightgreen
11806	schaersvoo	1428	*/
		1429	if( js_function[DRAW_DOTFILL] != 1 ){ js_function[DRAW_DOTFILL] = 1;}
11817	schaersvoo	1430	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1431	js_function[DRAW_FILLTOBORDER] = 1;
		1432	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1433	}
		1434	decimals = find_number_of_digits(precision);
11806	schaersvoo	1435	for(i=0;i<5;i++){
		1436	switch(i){
11817	schaersvoo	1437	case 0: double_data[0] = get_real(infile,0); break; /* x in px */
		1438	case 1: double_data[1] = get_real(infile,0); break; /* y in py */
		1439	case 2: int_data[0] = (int) (get_real(infile,0)); break; /* dx pixel */
		1440	case 3: int_data[1] = (int) (get_real(infile,0)); break; /* dy pixel*/
11806	schaersvoo	1441	case 4: stroke_color = get_color(infile,1);
		1442	/* draw_dotfill(ctx,x0,y0,dx,dy,radius,color,opacity,xsize,ysize) */
14032	schaersvoo	1443	string_length = snprintf(NULL,0, "draw_dotfill(%d,%.f,%.f,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",FILL_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],line_width,stroke_color,stroke_opacity,xsize,ysize);
11806	schaersvoo	1444	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11817	schaersvoo	1445	snprintf(tmp_buffer,string_length,"draw_dotfill(%d,%.f,%.f,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",FILL_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],line_width,stroke_color,stroke_opacity,xsize,ysize);
11806	schaersvoo	1446	add_to_buffer(tmp_buffer);
11817	schaersvoo	1447	fill_cnt++;
7614	schaersvoo	1448	break;
11806	schaersvoo	1449	default:break;
7614	schaersvoo	1450	}
		1451	}
11806	schaersvoo	1452	reset();
		1453	break;
		1454
		1455	case DRAG:
		1456	/*
		1457	@ drag [x][y][xy]
		1458	@ the next object will be draggable in x / y / xy direction
		1459	@ the displacement can be read by 'javascript:read_dragdrop();'
		1460	@ the precision (default 2 decimals) in the student reply may be set with command <a href="#precision">'precision'.</a><br />Use this 'precision' command before this command 'drag x\|y\|xy' !
13956	schaersvoo	1461	@ <a href='#onclick'>'onclick'</a> and 'drag x\|y\|xy' may be combined (for different objects: a single object can either be onclick or drag , not both )
11806	schaersvoo	1462	@ 'multi_objects' will be numbered in the given x/y-sequence (example: points red,0,0,1,1,2,2,3,3 : point (0:0) is object_number 1)
		1463	@ <b>attention</b>: static objects and 'onclick/drag' objects of the same type (like point,circle,etc) with the same coordinates (e.g. objects that overlap) will give problems in the 'recognition algorithm')<br />in this example<br /><em>linewidth 4<br />point 0,0,red<br />drag xy<br />point 0,0,blue<br /></em>the blue point will not be recognised as draggable !<br /><em>linewidth 4<br />drag xy<br />point 0,0,red<br />drag xy<br />point 0,0,blue<br /></em>both points will be recognised
14032	schaersvoo	1464	@ the answer is : drag_or_onclick_object_number : Xorg : Yorg : Xnew : Ynew<br />wherein object_number is the sequence number of the draggable & onclick objects in your script.<br />Only draggable & onclick objects will have an object_number (e.g things like point,crosshair,line,segment,circle,rect,triangle...etc)
13956	schaersvoo	1465	@ use keyword <a href='#snaptogrid'>'snaptogrid'<a/> , <a href='#xsnaptogrid'>'xsnaptogrid'</a> , <a href='#ysnaptogrid'>'ysnaptogrid'</a> or command <a href='#snaptopoints'>'snaptopoints x1,y1,x2,y2,...'</a> to switch from free to discrete movement
11806	schaersvoo	1466	@ in case of external images (commands copy / copyresized) the external image can be set draggable ; always xy. <br />The function javascript;read_canvas() will return the xy-coordinates of all images.
		1467	@ note: in case an object is dragged , zooming or panning will cause the coordinates to be reset to the original position :( <br />e.g. dragging / panning will get lost. (array with 'drag data' is erased)<br />This is a design flaw and not a feature !!
13829	bpr	1468	@%drag_x%size 400,400%xrange -10,10%yrange -10,10%filled%fillcolor lightblue%opacity 200,40%drag x%linewidth 2%circles blue,-5,0,3,0,0,2,5,0,4,0,4,3,0,-3,4
		1469	@%drag_y%size 400,400%xrange -10,10%yrange -10,10%filled%fillcolor lightblue%opacity 200,40%drag y%linewidth 2%circles blue,-5,0,3,0,0,2,5,0,4,0,4,3,0,-3,4
		1470	@%drag_xy%size 400,400%xrange -10,10%yrange -10,10%filled%fillcolor lightblue%opacity 200,40%drag xy%linewidth 2%circles blue,-5,0,3,0,0,2,5,0,4,0,4,3,0,-3,4
11806	schaersvoo	1471	*/
		1472	temp = get_string(infile,1);
		1473	if(strstr(temp,"xy") != NULL ){
		1474	drag_type = 0;
		1475	}
		1476	else
		1477	{
		1478	if(strstr(temp,"x") != NULL ){
		1479	drag_type = 1;
		1480	}
		1481	else
		1482	{
		1483	drag_type = 2;
		1484	}
		1485	}
		1486	/* assuming all drag&drop coordinates the same precision: so set only once */
		1487	if( print_drag_params_only_once == FALSE ){
		1488	fprintf(js_include_file,"dragdrop_precision = %d;use_dragdrop_reply = true;\n",precision);
		1489	print_drag_params_only_once = TRUE;
		1490	}
		1491	onclick = 2;
		1492	/* if(use_userdraw == TRUE ){canvas_error("\"drag & drop\" may not be combined with \"userdraw\" or \"pan and zoom\" \n");} */
7614	schaersvoo	1493	break;
8386	schaersvoo	1494
11806	schaersvoo	1495	case ELLIPSE:
8351	schaersvoo	1496	/*
11806	schaersvoo	1497	@ ellipse xc,yc,radius_x,radius_y,color
		1498	@ a ellipse with center xc/yc in x/y-range
		1499	@ radius_x and radius_y are in pixels
9406	schaersvoo	1500	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
11806	schaersvoo	1501	@ will shrink / expand on zoom out / zoom in
13949	schaersvoo	1502	@%ellipse%size 400,400%xrange -10,10%yrange -10,10%filled%fillcolor orange%opacity 200,40%linewidth 3%drag xy%ellipse 0,0,6,4,green%zoom blue
8351	schaersvoo	1503	*/
11806	schaersvoo	1504	for(i=0;i<5;i++){
		1505	switch(i){
		1506	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		1507	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
14032	schaersvoo	1508	case 2:double_data[2] = get_real(infile,0);break; /* rx -> px */
		1509	case 3:double_data[3] = get_real(infile,0);break; /* ry -> px */
11806	schaersvoo	1510	case 4:stroke_color = get_color(infile,1);/* name or hex color */
		1511	decimals = find_number_of_digits(precision);
14045	schaersvoo	1512	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,3,[%.f],[%.f],[%.f],[%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[1],decimals,double_data[2],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	1513	if(onclick > 0){click_cnt++;}
		1514	/* click_cnt++; */
		1515	reset();
		1516	break;
		1517	}
		1518	}
		1519	break;
13829	bpr	1520
12110	schaersvoo	1521	case ELLIPSES:
		1522	/*
		1523	@ ellipses color,xc1,yc1,radius_x1,radius_y1,xc2,yc2,radius_x2,radius_y2,xc3,yc3,radius_x3,radius_y3,...
		1524	@ a ellipses with center xc/yc in x/y-range
		1525	@ radius_x and radius_y are in pixels
		1526	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		1527	@ will shrink / expand on zoom out / zoom in
13949	schaersvoo	1528	@%ellipses%size 400,400%xrange -10,10%yrange -10,10%filled%fillcolor orange%opacity 200,40%linewidth 3%onclick%ellipses red,-3,0,2,4,0,0,4,2,3,0,6,2
12110	schaersvoo	1529	*/
13829	bpr	1530
12110	schaersvoo	1531	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		1532	fill_color = stroke_color;
		1533	i=1;
		1534	while( ! done ){ /* get next item until EOL*/
		1535	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
		1536	switch (i%4){
		1537	case 1:double_data[i-1] = get_real(infile,0);break; /* x */
		1538	case 2:double_data[i-1] = get_real(infile,0);break; /* y */
		1539	case 3:double_data[i-1] = get_real(infile,0);break; /* rx */
		1540	case 0:double_data[i-1] = get_real(infile,1);break; /* ry */
		1541	default: break;
		1542	}
		1543	i++;
		1544	}
		1545	decimals = find_number_of_digits(precision);
		1546	for(c = 0 ; c < i-1 ; c = c+4){
14045	schaersvoo	1547	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,3,[%.f],[%.f],[%.f],[%.f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n", drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+1],decimals,double_data[c+2],decimals,double_data[c+3],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
12110	schaersvoo	1548	if(onclick > 0){click_cnt++;} /* click_cnt++; */
		1549	}
		1550	reset();
		1551	break;
		1552
11806	schaersvoo	1553	case FILLALL:
		1554	/*
		1555	@ fillall color,x1,y1,x2,y2...x_n,y_n
		1556	@ fill all region containing points (x1:y1),(x2:y2)...(x_n:y_n) with color 'color'
		1557	@ any other colors (objects) in the <a href="#canvastype>canvastype</a> will act as border to the bucket fill
14032	schaersvoo	1558	@ use this command after all boundary objects are declared.
11806	schaersvoo	1559	@ Use command 'userdraw clickfill,color' for user click driven flood fill.
		1560	@ use command <a href="#canvastype">canvastype </a> to fill another canvas (default should be fine: DRAG_CANVAS = 5)
		1561	@ note: the fill-family of commands are very (client) cpu intensive operations!<br />filling is done pixel by pixel<br/>e.g. image size of 400x400 uses 160000 pixels : each pixel contains 4 data (R,G,B,Opacity) = 640000 data.<br />on every data a few operations / comparisons are done...<br />So have pity on your students CPU..
12110	schaersvoo	1562	@%fillall%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%vlines black,-5,0,-5,0,-4,0,-4,0,3,0,3,0%hlines black,-5,0,-5,0,-5,4,-5,4,-5,-2,-5,-2%circles green,0,0,2,3,3,5,-5,-5,3%opacity 240,50%fillall blue,1,1,8,8,-8,-8
11806	schaersvoo	1563	*/
		1564	decimals = find_number_of_digits(precision);
		1565	fill_color=get_color(infile,0); /* how nice: now the color comes first...*/
8351	schaersvoo	1566	i=0;
11806	schaersvoo	1567	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1568	js_function[DRAW_FILLTOBORDER] = 1;
		1569	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1570	}
8351	schaersvoo	1571	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	1572	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
8351	schaersvoo	1573	if(i%2 == 0 ){
		1574	double_data[i] = get_real(infile,0); /* x */
		1575	}
		1576	else
		1577	{
		1578	double_data[i] = get_real(infile,1); /* y */
14032	schaersvoo	1579	string_length = snprintf(NULL,0, "setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[i-1],decimals,double_data[i],fill_color,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1580	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11818	schaersvoo	1581	snprintf(tmp_buffer,string_length,"setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[i-1],decimals,double_data[i],fill_color,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1582	add_to_buffer(tmp_buffer);
		1583	fill_cnt++;
8351	schaersvoo	1584	}
		1585	i++;
		1586	}
11806	schaersvoo	1587	break;
		1588
		1589	case FILLED:
		1590	/*
		1591	@ filled
		1592	@ keyword (no arguments required)
11839	schaersvoo	1593	@ the next 'fillable' object (only the next !) will be filled
13936	bpr	1594	@ use command <a href="#fillcolor">"fillcolor color"</a> to set fillcolor
11839	schaersvoo	1595	@ use <a href="#fillpattern">fillpattern</a> for non-solid color filling.
11806	schaersvoo	1596	@ use command "opacity 0-255,0-255" to set stroke and fill-opacity
13956	schaersvoo	1597	@ use command <a href='#fill'>"fill x,y,color"</a> or <a href="#floodfill">"floodfill x,y,color"</a> to fill the space around (x;y) with color <br />pixel operation implemented in javascript: use with care !
11806	schaersvoo	1598	*/
11839	schaersvoo	1599	use_filled = 1;
11859	schaersvoo	1600	use_pattern = 0;
11806	schaersvoo	1601	break;
		1602
		1603	case FILLCOLOR:
		1604	/*
		1605	@ fillcolor colorname or #hex
11839	schaersvoo	1606	@ set the color : mainly used for command 'userdraw obj,stroke_color'
11806	schaersvoo	1607	@ all fillable massive objects will have a fillcolor == strokecolor (just to be compatible with flydraw...)
11839	schaersvoo	1608	@ see <a href="#fillpattern">fillpattern</a> for non-solid color filling.
11806	schaersvoo	1609	*/
		1610	fill_color = get_color(infile,1);
11874	schaersvoo	1611	use_pattern = 0;
11806	schaersvoo	1612	break;
		1613
11837	schaersvoo	1614	case FILLPATTERN:
		1615	/*
11854	schaersvoo	1616	@ fillpattern grid \| hatch \| diamond \| dot \| image-url
11837	schaersvoo	1617	@ use a pattern as fillstyle
11874	schaersvoo	1618	@ suitable for all fillable object including the <a href="#userdraw">'userdraw objects' family</a>
13829	bpr	1619	@ noy -yet- implemented in the <a href="#multidraw">multidraw objects family</a>...(will probably be too complex)
11837	schaersvoo	1620	@ the fillcolor is set by the object command, for example:<br />size 370,370<br />xrange -5,5<br />yrange -5,5<br />opacity 165,150<br />fillpattern grid<br />fcircle -6,3,160,blue<br />fillpattern dot<br />fcircle -3,-3,160,red<br />fillpattern hatch<br />fcircle 0,3,160,green<br />filpattern diamond<br />fcircle 3,-3,160,cyan<br />userdraw dotfill,blue<br />zoom red<br />
		1621	@ the pattern dimensions are hardcoded (linewidth ,radius,dx,dy are fixed)
		1622	@ the pattern color is set by command <a href='#fillcolor'>fillcolor</a> and <a href='#opacity'>opacity</a>
11839	schaersvoo	1623	@ see <a href="#fillcolor">fillcolor</a> for solid color filling.
11854	schaersvoo	1624	@ when using an image-url , make sure it contains an '/' in the filename...'fillpattern $$module_dir/gifs/test.jpg' will fill the next fillable object with this image.\|<br />the argument to html5 canvas routine 'createPattern(img,argument)' is set to 'repeat'<br />e.g. if the image is smaller then the canvas, multiple copies will be used to fill the area ( e.g. ctx.fillStyle() = pattern)<br />for example:<br />size 150,150<br />xrange -5,5<br />yrange -5,5<br />drag xy<br />fillpattern gifs/en.gif<br />fcircle 0,0,100,red<br />fillpattern gifs/nl.gif<br />drag xy<br />fcircle -3,2,100,green<br />fillpattern gifs/cn.gif<br />drag xy<br />fcircle 3,2,100,green<br />
13829	bpr	1625	@ fillpattern is also active for <a href="#userdraw">userdraw object,color"</a>...<br />the userdraw family a has also 'clickfill type' (e.g. an object gets filled between boundaries, when clicked) commands like:<br />'userdraw dotfill,color'<br />'userdraw hatchfill,color' etc
13948	schaersvoo	1626	@%fillpattern_1%size 400,400%xrange -5,5%yrange -5,5%opacity 165,150%fillpattern grid%fcircle -6,3,160,blue%fillpattern dot%fcircle -3,-3,160,red%fillpattern hatch%fcircle 0,3,160,green%filpattern diamond%fcircle 3,-3,160,cyan%zoom red
		1627	@%fillpattern_2%size 400,400%xrange -10,10%yrange -10,10%linewidth 3%fillcolor green%fillpattern hatch%#fillpattern dot,diamond,grid,imageurl%userdraw fcircle,red
11837	schaersvoo	1628	*/
		1629	temp = get_string(infile,1);
11875	schaersvoo	1630	if( strstr(temp,"grid") != 0 ){ use_pattern = 2;use_filled = 2;} /* use_pattern is used in dragstuff library */
11837	schaersvoo	1631	else
11875	schaersvoo	1632	if( strstr(temp,"hatch") != 0 ){ use_pattern = 3;use_filled = 3;}
11837	schaersvoo	1633	else
11875	schaersvoo	1634	if( strstr(temp,"diamond") != 0 ){ use_pattern = 4;use_filled = 4;}
11837	schaersvoo	1635	else
11875	schaersvoo	1636	if( strstr(temp,"dot") != 0 ){ use_pattern = 5;use_filled = 5;}
11837	schaersvoo	1637	else
11875	schaersvoo	1638	if( strstr(temp,"/") != 0 ){ use_pattern = 6;use_filled = 0;if( js_function[ADD_LOAD_IMAGE] != 1 ){ js_function[ADD_LOAD_IMAGE] = 1; add_js_load_image(js_include_file,canvas_root_id);} fprintf(js_include_file,"get_image_from_url(\"%s\"); ",temp); }
11854	schaersvoo	1639	else
13829	bpr	1640	canvas_error("fillpattern unknown or typo...choose grid,hatch,diamond of dot...");
11837	schaersvoo	1641	break;
11806	schaersvoo	1642	case FILLTOBORDER:
		1643	/*
		1644	@ filltoborder x,y,bordercolor,color
14032	schaersvoo	1645	@ fill the region of point (x:y) with color 'color'
11806	schaersvoo	1646	@ any other color will not act as border to the bucket fill
14032	schaersvoo	1647	@ use this command after all boundary objects are declared.
11806	schaersvoo	1648	@ use command <a href="#canvastype">canvastype </a> to fill another canvas (default should be fine: DRAG_CANVAS = 5)
		1649	@ note: filltoborder is a very (client) cpu intensive operation!<br />filling is done pixel by pixel<br/>e.g. image size of 400x400 uses 160000 pixels : each pixel contains 4 data (R,G,B,Opacity) = 640000 data.<br />on every data a few operations / comparisons are done...<br />So have pity on your students CPU..
		1650	@ maybe used together with command <a href="#userdraw">userdraw clickfill,color</a>
12110	schaersvoo	1651	@%filltoborder%size 400,400%xrange -10,10%yrange -10,10%canvastype 100%linewidth 2%precision 1000%jsplot blue,5*sin(x)%opacity 200,50%filltoborder 6,6,blue,blue%filltoborder 6,-6,blue,red
11806	schaersvoo	1652	*/
		1653	for(i=0 ;i < 4 ; i++){
		1654	switch(i){
		1655	case 0:double_data[0] = get_real(infile,0);break;
		1656	case 1:double_data[1] = get_real(infile,0);break;
		1657	case 2:bgcolor = get_color(infile,0);break;
		1658	case 3:fill_color = get_color(infile,1);
		1659	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1660	js_function[DRAW_FILLTOBORDER] = 1;
		1661	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1662	}
		1663	decimals = find_number_of_digits(precision);
		1664	/* we need to set a timeout: the canvas is not yet draw in memory? when floodfill is called directly... */
11818	schaersvoo	1665	string_length = snprintf(NULL,0, "setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1666	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11818	schaersvoo	1667	snprintf(tmp_buffer,string_length,"setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[0],decimals,double_data[1],bgcolor,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1668	add_to_buffer(tmp_buffer);
		1669	fill_cnt++;
		1670	break;
		1671	default:break;
8351	schaersvoo	1672	}
11806	schaersvoo	1673	}
		1674	reset();
		1675	break;
		1676	case FLOODFILL:
		1677	/*
		1678	@ floodfill x,y,color
		1679	@ alternative : fill x,y,color
		1680	@ fill the region of point (x:y) with color 'color'
		1681	@ any other color or size of picture (borders of picture) will act as border to the bucket fill
14032	schaersvoo	1682	@ use this command after all boundary objects are declared.
11806	schaersvoo	1683	@ Use command 'userdraw clickfill,color' for user click driven flood fill.
		1684	@ use command <a href="#canvastype">canvastype </a> to fill another canvas (default should be fine: DRAG_CANVAS = 5)
		1685	@ note: floodfill is a very (client) cpu intensive operation!<br />filling is done pixel by pixel<br/>e.g. image size of 400x400 uses 160000 pixels : each pixel contains 4 data (R,G,B,Opacity) = 640000 data.<br />on every data a few operations / comparisons are done...<br />So have pity on your students CPU..
12110	schaersvoo	1686	@%floodfill%size 400,400%xrange -10,10%yrange -10,10%canvastype 100%linewidth 2%precision 1000%jsplot blue,5*sin(x)%opacity 200,50%floodfill 6,6,blue%floodfill 6,-6,red
11806	schaersvoo	1687	*/
		1688	for(i=0 ;i < 4 ; i++){
		1689	switch(i){
		1690	case 0:double_data[0] = get_real(infile,0);break;
		1691	case 1:double_data[1] = get_real(infile,0);break;
		1692	case 2:fill_color = get_color(infile,1);
		1693	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1694	js_function[DRAW_FILLTOBORDER] = 1;
		1695	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1696	}
		1697	decimals = find_number_of_digits(precision);
		1698	/* we need to set a timeout: the canvas is not yet draw in memory? when floodfill is called directly... */
11818	schaersvoo	1699	string_length = snprintf(NULL,0, "setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1700	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11818	schaersvoo	1701	snprintf(tmp_buffer,string_length,"setTimeout(function(){filltoborder(%.f,%.f,[%s,%d],[%s,%d],%d,false,null);},1000);\n",decimals,double_data[0],decimals,double_data[1],fill_color,(int) (fill_opacity/0.0039215),fill_color,(int) (fill_opacity/0.0039215),FILL_CANVAS+fill_cnt);
11806	schaersvoo	1702	add_to_buffer(tmp_buffer);
		1703	fill_cnt++;
		1704	break;
		1705	default:break;
		1706	}
		1707	}
		1708	reset();
		1709	break;
		1710
		1711	case FONTCOLOR:
		1712	/*
		1713	@ fontcolor color
		1714	@ color: hexcolor or colorname
		1715	@ default: black
13956	schaersvoo	1716	@ use command <a href="#fontfamily'>fontfamily</a> to deviate from default font type
		1717	@%fontcolor%size 400,400%xrange -10,10%yrange -10,10%fontcolor red%#note: use command fontfamily to change size and shape%axis%axisnumbering%grid 2,2,grey,2,2,4,grey
11806	schaersvoo	1718	*/
		1719	font_color = get_color(infile,1);
		1720	break;
		1721
		1722	case FONTFAMILY:
		1723	/*
		1724	@ fontfamily font_description
		1725	@ set the font family; for browsers that support it
		1726	@ font_description: Ariel ,Courier, Helvetica etc
12063	schaersvoo	1727	@ in case commands<br /> 'string color,x,y,the string'<br /> 'stringup color,x,y,rotation,the string'<br />fontfamily can be something like:<br />italic 34pt Ariel
		1728	@ use correct syntax : 'font style' 'font size'pt 'fontfamily'
13959	bpr	1729	@%fontfamily%size 400,400%xrange -10,10%yrange -10,10 %fontfamily Bold 10pt Ariel%string blue,-9,9,10 pt Ariel%fontfamily Italic 20pt Ariel%string blue,0,9,20 pt Ariel%fontfamily Bold 10pt Helvetica%string blue,-9,5,10 pt Helvetica%fontfamily Italic 20pt Helvetica%string blue,0,5,20 pt Helvetica %fontfamily Bold 10pt Courier%string blue,-9,0,10 pt Courier%fontfamily Italic 20pt Courier%string blue,0,0,20 pt Courier%fontfamily Bold 10pt Fixed%string blue,-9,-5,10 pt Fixed%fontfamily Italic 20pt Fixed%string blue,0,-5,20 pt Fixed %fontfamily Bold 10pt Times%string blue,-9,-9,10 pt Times%fontfamily Italic 20pt Times%string blue,0,-9,20 pt Times
		1730
11806	schaersvoo	1731	*/
		1732	font_family = get_string(infile,1);
		1733	break;
		1734
		1735	case FONTSIZE:
		1736	/*
		1737	@ fontsize font_size
		1738	@ default value 12
		1739	@ note:for some macro's (like grid \| legend \| xaxistext \| xlabel etc) sometimes command <a href="#fontfamily">"fontfamily"</a> can be used for some specific font-setting<br />this is however not always very straight forward...so just try and see what happens
		1740	*/
		1741	font_size = (int) (get_real(infile,1));
		1742	break;
		1743
		1744	case FUNCTION_LABEL:
		1745	/*
		1746	@ functionlabel 'some string'
		1747	@ default value "f(x)="
		1748	@ no mathml allowed (just ascii string)
13956	schaersvoo	1749	@ use command <a href='#fontsize'>fontsize int</a> to adjust the size
		1750	@ use command <a href='#strokecolor'>strokecolor colorname</a> to adjust the labels (individually, if needed)
		1751	@ if needed, use before every command <a href='#userinput'>'userinput function \| inputfield \| textarea'</a>
		1752	@ no limit in amount of inputfields for userbased function plotting
11806	schaersvoo	1753	*/
		1754	function_label = get_string_argument(infile,1);
		1755	break;
		1756
		1757	case GRID:/* xmajor,ymajor,gridcolor [,xminor,yminor,tick length (px) ,axis/tickscolor]*/
		1758	/*
		1759	@ grid step_x,step_y,gridcolor
		1760	@ if keywords <a href="#axis">"axis"</a> or <a href="#axisnumbering">"axisnumbering"</a> are set, use :<br />grid step_x,step_y,major_color,minor_x,minor_y,tics height in px,axis_color<br />minor x step = step_x / minor_x
		1761	@ in that case, use command <a href="#fontcolor">"fontcolor"</a>, <a href="#fontsize">"fontsize"</a> and / or <a href="#fontfamily">"fontfamily"</a> to adjust font <br />defaults: black,12,Ariel
		1762	@ if xmin > 0 and/or ymin > 0 and zooming / panning is not activ: <br /> be aware that the x/y-axis numbering and x/y major/minor tic marks will not be visual <br /> as they are placed under the x-axis and left to the y-axis (in Quadrant II and IV)
		1763	@ can <b>not</b> be set <a href="#onclick">"onclick"</a> or <a href="#drag">"drag xy"</a>
		1764	@ use commands <a href="#xlabel">'xlabel some_string'</a> and/or <a href="#ylabel">'ylabel some_string'</a> to label axis;<br />use command "fontsize" to adjust size:the font family is non-configurable 'italic your_fontsize px Ariel' !
13987	bpr	1765	@ see commands <a href="#xaxis">"xaxis" or xaxistext"</a>, <a href="#yaxis">"yaxis" or "yaxistext"</a> to set tailormade values on axis (the used font is set by <a href="#fontfamily">command fontfamily</a>; default '12px Ariel')
14038	schaersvoo	1766	@ see command <a href="#legend">"legend"</a>to set a legend for the graph ;<br />use command <a href="#fontsize">"fontsize"</a> to adjust size (the font family is non-configurable 'bold your_fontsize px Ariel')
12110	schaersvoo	1767	@%grid%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%zoom red
		1768	@%grid_axis%size 400,400%xrange -10,10%yrange -10,10%axis%grid 1,1,grey,2,2,6,black%zoom red
		1769	@%grid_axisnumbering%size 400,400%xrange -10,10%yrange -10,10%axisnumbering%precision 0%grid 1,1,grey,2,2,6,black%zoom red
		1770	@%grid_axis_axisnumbering%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 0%grid 1,1,grey,2,2,6,black%zoom red
11806	schaersvoo	1771	*/
		1772	if( js_function[DRAW_YLOGSCALE] == 1 ){canvas_error("only one grid type is allowed...");}
		1773	if( js_function[DRAW_GRID] != 1 ){ js_function[DRAW_GRID] = 1;}
		1774	for(i=0;i<4;i++){
		1775	switch(i){
		1776	case 0:double_data[0] = get_real(infile,0);break;/* xmajor */
		1777	case 1:double_data[1] = get_real(infile,0);break;/* ymajor */
		1778	case 2:
		1779	if( use_axis == TRUE ){
		1780	stroke_color = get_color(infile,0);
		1781	done = FALSE;
		1782	int_data[0] = (int) (get_real(infile,0));/* xminor */
		1783	int_data[1] = (int) (get_real(infile,0));/* yminor */
		1784	int_data[2] = (int) (get_real(infile,0));/* tic_length */
		1785	fill_color = get_color(infile,1); /* used as axis_color*/
8351	schaersvoo	1786	}
		1787	else
		1788	{
11806	schaersvoo	1789	int_data[0] = 1;
		1790	int_data[1] = 1;
		1791	stroke_color = get_color(infile,1);
		1792	fill_color = stroke_color;
8351	schaersvoo	1793	}
11806	schaersvoo	1794	if( double_data[0] <= 0 \|\| double_data[1] <= 0 \|\| int_data[0] <= 0 \|\| int_data[1] <= 0 ){canvas_error("major or minor ticks must be positive !");}
		1795	/* set snap_x snap_y values in pixels */
		1796	fprintf(js_include_file,"snap_x = %f;snap_y = %f;",double_data[0] / int_data[0],double_data[1] / int_data[1]);
		1797	string_length = snprintf(NULL,0, ";draw_grid%d(%d,%d,%.2f,%.f,%.f,%d,%d,%d,%d,\"%s\",\"%s\",%d,\"%s\",%d,%d,%d,%.2f,%d,%s,%d,%d,%d,\"%s\",%.2f);\n ",canvas_root_id,GRID_CANVAS,precision,stroke_opacity,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],int_data[2],line_width,stroke_color,fill_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
		1798	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		1799	snprintf(tmp_buffer,string_length,";draw_grid%d(%d,%d,%.2f,%.f,%.f,%d,%d,%d,%d,\"%s\",\"%s\",%d,\"%s\",%d,%d,%d,%.2f,%d,%s,%d,%d,%d,\"%s\",%.2f);\n ",canvas_root_id,GRID_CANVAS,precision,stroke_opacity,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],int_data[2],line_width,stroke_color,fill_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype[0],dashtype[1],font_color,fill_opacity);
		1800	add_to_buffer(tmp_buffer);
		1801	break;
8351	schaersvoo	1802	}
		1803	}
		1804	reset();
		1805	break;
11806	schaersvoo	1806	case GRIDFILL:
		1807	/*
		1808	@ gridfill x0,y0,dx,dy,color
		1809	@ x0,y0 in xrange / yrange
		1810	@ distances dx,dy in pixels
13936	bpr	1811	@ there is also a command <a href="#userdraw">userdraw gridfill,color</a>
12110	schaersvoo	1812	@%gridfill%size 400,400%xrange -10,10%yrange -10,10%canvastype 100%linewidth 2%precision 1000%jsplot blue,5*sin(x)%opacity 200,50%gridfill 6,6,10,10,blue%gridfill 6,-6,6,6,red
		1813
11806	schaersvoo	1814	*/
		1815	if( js_function[DRAW_GRIDFILL] != 1 ){ js_function[DRAW_GRIDFILL] = 1;}
11820	schaersvoo	1816	decimals = find_number_of_digits(precision);
		1817	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1818	js_function[DRAW_FILLTOBORDER] = 1;
		1819	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1820	}
11806	schaersvoo	1821	for(i=0;i<5;i++){
		1822	switch(i){
11820	schaersvoo	1823	case 0: double_data[0] = get_real(infile,0); break; /* x */
		1824	case 1: double_data[1] = get_real(infile,0); break; /* y */
		1825	case 2: int_data[0] = (int) (get_real(infile,0)); break; /* dx pixel */
		1826	case 3: int_data[1] = (int) (get_real(infile,0)); break; /* dy pixel*/
11806	schaersvoo	1827	case 4: stroke_color = get_color(infile,1);
11820	schaersvoo	1828	string_length = snprintf(NULL,0, "draw_gridfill(%d,%.f,%.f,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],line_width,stroke_color,stroke_opacity,xsize,ysize);
11806	schaersvoo	1829	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11820	schaersvoo	1830	snprintf(tmp_buffer,string_length,"draw_gridfill(%d,%.f,%.f,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],line_width,stroke_color,stroke_opacity,xsize,ysize);
11806	schaersvoo	1831	add_to_buffer(tmp_buffer);
11820	schaersvoo	1832	fill_cnt++;
11806	schaersvoo	1833	break;
		1834	default:break;
		1835	}
		1836	}
		1837	reset();
		1838	break;
8386	schaersvoo	1839
8244	schaersvoo	1840	case HALFLINE:
		1841	/*
		1842	@ demiline x1,y1,x2,y2,color
		1843	@ alternative : halfline
		1844	@ draws a halfline starting in (x1:y1) and through (x2:y2) in color 'color' (colorname or hex)
9406	schaersvoo	1845	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12110	schaersvoo	1846	@%halfline%size 400,400%xrange -10,10%yrange -10,10%halfline -5,5,0,0,red%halfline -5,-5,0,0,blue
8244	schaersvoo	1847	*/
		1848	for(i=0;i<5;i++){
		1849	switch(i){
		1850	case 0: double_data[0]= get_real(infile,0);break; /* x-values */
		1851	case 1: double_data[1]= get_real(infile,0);break; /* y-values */
		1852	case 2: double_data[10]= get_real(infile,0);break; /* x-values */
		1853	case 3: double_data[11]= get_real(infile,0);break; /* y-values */
		1854	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		1855	if(double_data[0] == double_data[10]){ /* vertical halfline */
		1856	if(double_data[1] < double_data[11]){
		1857	double_data[3] = ymax + 1000;
		1858	}
		1859	else
		1860	{
		1861	double_data[3] = ymin - 1000;
		1862	}
10953	bpr	1863	double_data[2] = double_data[0];
8244	schaersvoo	1864	}
		1865	else
		1866	{ /* horizontal halfline*/
		1867	if( double_data[1] == double_data[11] ){
		1868	if( double_data[0] < double_data[10] ){
		1869	double_data[2] = xmax + 1000; /* halfline to the right */
		1870	}
		1871	else
		1872	{
		1873	double_data[2] = xmin - 1000; /* halfline to the left */
		1874	}
		1875	double_data[3] = double_data[1];
		1876	}
		1877	else
		1878	{
		1879	/* any other halfline */
		1880	/* slope */
		1881	double_data[12] = (double_data[11] - double_data[1])/(double_data[10] - double_data[0]);
		1882	/* const */
		1883	double_data[13] = double_data[1] - double_data[12]*double_data[0];
		1884	if( double_data[0] < double_data[10] ){
		1885	double_data[2] = double_data[2] + 1000;
		1886	}
		1887	else
		1888	{
		1889	double_data[2] = double_data[2] - 1000;
		1890	}
		1891	double_data[3] = double_data[12]*double_data[2] + double_data[13];
		1892	}
10953	bpr	1893	}
14045	schaersvoo	1894	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,18,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8379	schaersvoo	1895	if(onclick > 0){click_cnt++;}
		1896	/* click_cnt++; */
		1897	reset();
8244	schaersvoo	1898	break;
		1899	}
		1900	}
		1901	break;
8386	schaersvoo	1902
8365	schaersvoo	1903	case HALFLINES:
		1904	/*
		1905	@ demilines color,x1,y1,x2,y2,....
		1906	@ alternative : halflines
		1907	@ draws halflines starting in (x1:y1) and through (x2:y2) in color 'color' (colorname or hex) etc etc
9406	schaersvoo	1908	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> indiviually
12110	schaersvoo	1909	@%halflines%size 400,400%xrange -10,10%yrange -10,10%halflines red,-5,5,0,0,-5,-5,0,0
8365	schaersvoo	1910	*/
		1911	stroke_color=get_color(infile,0);
		1912	fill_color = stroke_color;
		1913	i=0;
		1914	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	1915	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
8365	schaersvoo	1916	if(i%2 == 0 ){
		1917	double_data[i] = get_real(infile,0); /* x */
		1918	}
		1919	else
		1920	{
		1921	double_data[i] = get_real(infile,1); /* y */
		1922	}
		1923	i++;
		1924	}
		1925	decimals = find_number_of_digits(precision);
		1926	for(c = 0 ; c < i-1 ; c = c+4){
		1927	if( double_data[c] == double_data[c+2] ){ /* vertical line*/
		1928	if(double_data[c+1] < double_data[c+3]){ /* upright halfline */
		1929	double_data[c+3] = ymax + 1000;
		1930	}
		1931	else
		1932	{
		1933	double_data[c+3] = ymin - 1000;/* descending halfline */
		1934	}
		1935	}
		1936	else
		1937	{
		1938	if( double_data[c+1] == double_data[c+3] ){ /* horizontal line */
		1939	if(double_data[c] < double_data[c+2] ){ /* halfline to the right */
		1940	double_data[c+2] = xmax+100;
		1941	}
		1942	else
		1943	{
		1944	double_data[c+2] = xmin-1000; /* halfline to the right */
		1945	}
		1946	}
		1947	else
		1948	{
		1949	/* m */
		1950	double m = (double_data[c+3] - double_data[c+1]) /(double_data[c+2] - double_data[c]);
		1951	/* q */
		1952	double q = double_data[c+1] - ((double_data[c+3] - double_data[c+1]) /(double_data[c+2] - double_data[c]))*double_data[c];
		1953	if(double_data[c] < double_data[c+2]){ /* to the right */
		1954	double_data[c+2] = xmax+1000; /* 1000 is needed for dragging...otherwise it's just segment */
		1955	double_data[c+3] = (m)*(double_data[c+2])+(q);
		1956	}
		1957	else
		1958	{ /* to the left */
		1959	double_data[c+2] = xmin - 1000;
		1960	double_data[c+3] = (m)*(double_data[c+2])+(q);
		1961	}
		1962	}
		1963	}
14045	schaersvoo	1964	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,18,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8379	schaersvoo	1965	if(onclick > 0){click_cnt++;}
		1966	/* click_cnt++; */
8365	schaersvoo	1967	}
		1968	reset();
		1969	break;
11806	schaersvoo	1970	case HATCHFILL:
		1971	/*
		1972	@ hatchfill x0,y0,dx,dy,color
		1973	@ x0,y0 in xrange / yrange
		1974	@ distances dx,dy in pixels
13936	bpr	1975	@ there is also a command <a href="#userdraw">userdraw hatchfill,color</a>
12110	schaersvoo	1976	@%hatchfill%size 400,400%xrange -10,10%yrange -10,10%canvastype 100%linewidth 2%precision 1000%jsplot blue,5*sin(x)%opacity 200,50%hatchfill 6,6,10,10,blue%hatchfill 6,-6,6,6,red
11806	schaersvoo	1977	*/
		1978	if( js_function[DRAW_HATCHFILL] != 1 ){ js_function[DRAW_HATCHFILL] = 1;}
11820	schaersvoo	1979	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		1980	js_function[DRAW_FILLTOBORDER] = 1;
		1981	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		1982	}
		1983	decimals = find_number_of_digits(precision);
11806	schaersvoo	1984	for(i=0;i<5;i++){
		1985	switch(i){
11820	schaersvoo	1986	case 0: double_data[0] = get_real(infile,0); break; /* x */
		1987	case 1: double_data[1] = get_real(infile,0); break; /* y */
		1988	case 2: int_data[0] = (int) (get_real(infile,0)); break; /* dx pixel */
		1989	case 3: int_data[1] = (int) (get_real(infile,0)); break; /* dy pixel*/
11806	schaersvoo	1990	case 4: stroke_color = get_color(infile,1);
		1991	/* draw_hatchfill(ctx,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize) */
11820	schaersvoo	1992	string_length = snprintf(NULL,0, "draw_hatchfill(%d,%.f,%.f,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],line_width,stroke_color,stroke_opacity,xsize,ysize);
11806	schaersvoo	1993	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11820	schaersvoo	1994	snprintf(tmp_buffer,string_length,"draw_hatchfill(%d,%.f,%.f,%d,%d,%d,\"%s\",%.2f,%d,%d);\n",STATIC_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],int_data[0],int_data[1],line_width,stroke_color,stroke_opacity,xsize,ysize);
11806	schaersvoo	1995	add_to_buffer(tmp_buffer);
11820	schaersvoo	1996	fill_cnt++;
11806	schaersvoo	1997	break;
		1998	default:break;
		1999	}
		2000	}
		2001	reset();
		2002	break;
8386	schaersvoo	2003
8224	bpr	2004	case HLINE:
7614	schaersvoo	2005	/*
		2006	@ hline x,y,color
9383	schaersvoo	2007	@ alternative : horizontalline
7614	schaersvoo	2008	@ draw a horizontal line through point (x:y) in color 'color'
13987	bpr	2009	@ or use command <a href='#curve'>'curve color,formula'</a> to draw the line (uses more points to draw the line; is however better draggable)
9406	schaersvoo	2010	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12110	schaersvoo	2011	@%hline%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%hline 0,0,red%dhline 0,5,blue
7614	schaersvoo	2012	*/
		2013	for(i=0;i<3;i++) {
		2014	switch(i){
		2015	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		2016	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		2017	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		2018	double_data[3] = double_data[1];
		2019	decimals = find_number_of_digits(precision);
14045	schaersvoo	2020	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,100xmin,decimals,100xmax,decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8379	schaersvoo	2021	if(onclick > 0){click_cnt++;}
		2022	/* click_cnt++; */
		2023	reset();
7614	schaersvoo	2024	break;
		2025	}
		2026	}
		2027	break;
8366	schaersvoo	2028
		2029	case HLINES:
		2030	/*
		2031	@ hlines color,x1,y1,x2,y2,...
9383	schaersvoo	2032	@ alternative : horizontallines
8366	schaersvoo	2033	@ draw horizontal lines through points (x1:y1)...(xn:yn) in color 'color'
9406	schaersvoo	2034	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
12110	schaersvoo	2035	@%hlines%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%hlines red,0,0,0,5,0,-5
8366	schaersvoo	2036	*/
		2037	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		2038	fill_color = stroke_color;
		2039	i=0;
		2040	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	2041	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
8366	schaersvoo	2042	if(i%2 == 0 ){
		2043	double_data[i] = get_real(infile,0); /* x */
		2044	}
		2045	else
		2046	{
		2047	double_data[i] = get_real(infile,1); /* y */
		2048	}
		2049	i++;
		2050	}
		2051	decimals = find_number_of_digits(precision);
		2052	for(c = 0 ; c < i-1 ; c = c+2){
14045	schaersvoo	2053	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,xmin,decimals,xmax,decimals,double_data[c+1],decimals,double_data[c+1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8379	schaersvoo	2054	if(onclick > 0){click_cnt++;}
		2055	/* click_cnt++; */
8366	schaersvoo	2056	}
		2057	reset();
		2058	break;
11806	schaersvoo	2059	case HTTP:
7614	schaersvoo	2060	/*
11806	schaersvoo	2061	@ http x1,y1,x2,y2,http://some_adress.com
		2062	@ an active html-page will be displayed in an "iframe" rectangle left top (x1:y1) , right bottom (x2:y2)
		2063	@ do not use interactivity (or mouse) if the mouse needs to be active in the iframe
		2064	@ can <b>not</b> be 'set onclick' or 'drag xy'
12110	schaersvoo	2065	@%http%size 400,400%xrange -10,10%yrange -10,10%http 0,10,10,0,http://wims.unice.fr%opacity 200,50%drag xy%fcircle 0,0,100,green
7614	schaersvoo	2066	*/
11806	schaersvoo	2067	if( js_function[DRAW_HTTP] != 1 ){ js_function[DRAW_HTTP] = 1;}
		2068	for(i=0;i<5;i++){
7614	schaersvoo	2069	switch(i){
11806	schaersvoo	2070	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
14032	schaersvoo	2071	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
11806	schaersvoo	2072	case 2: int_data[2]=x2px(get_real(infile,0)) - int_data[0];break; /* width in x/y-range coord system -> pixel width */
		2073	case 3: int_data[3]=y2px(get_real(infile,0)) - int_data[1];break; /* height in x/y-range coord system -> pixel height */
		2074	case 4: decimals = find_number_of_digits(precision);
		2075	temp = get_string(infile,1);
		2076	if(strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'");}
		2077	string_length = snprintf(NULL,0,"draw_http(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
		2078	check_string_length(string_length);tmp_buffer = my_newmem(string_length+2);
		2079	snprintf(tmp_buffer,string_length,"draw_http(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
		2080	add_to_buffer(tmp_buffer);
7614	schaersvoo	2081	break;
		2082	}
		2083	}
11806	schaersvoo	2084	reset();
7614	schaersvoo	2085	break;
11806	schaersvoo	2086	case HTML:
8366	schaersvoo	2087	/*
11806	schaersvoo	2088	@ html x1,y1,x2,y2,html_string
		2089	@ all tags are allowed<br /> html-code using inputfields could be read using your own javascript-code. Do not use id's like 'canvas_input0' etc.
		2090	@ can be set onclick <br />(however dragging not supported)
14038	schaersvoo	2091	@ use keyword <a href='#centered'>centered</a> to center the html object on (x1:y1)
12110	schaersvoo	2092	@%html%size 400,400%xrange -10,10%yrange -10,10%html 0,10,10,0,<table style="border:solid 2px;background-color:yellow"><tr><th>qwerty</th><th>qwerty</th></tr><tr><td>qwerty</td><td>qwerty</td></tr><tr><td>qwerty</td><td>qwerty</td></tr><tr><td>qwerty</td><td>qwerty</td></tr><tr><td>qwerty</td><td>qwerty</td></tr></table> %opacity 200,50%drag xy%fcircle 0,0,100,green
8366	schaersvoo	2093	*/
11806	schaersvoo	2094	if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
		2095	for(i=0;i<5;i++){
		2096	switch(i){
		2097	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
14032	schaersvoo	2098	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
13829	bpr	2099	case 2: int_data[2]=x2px(get_real(infile,0));break;/* no more width needed : overflow */
11806	schaersvoo	2100	case 3: int_data[3]=y2px(get_real(infile,0));break;/* no more height needed : overflow */
		2101	case 4: decimals = find_number_of_digits(precision);
		2102	temp = get_string(infile,1);
		2103	if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
14044	schaersvoo	2104	string_length = snprintf(NULL,0,"draw_xml(%d,%d,%d,\"%s\",%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d);\n",canvas_root_id,int_data[0],int_data[1],temp,drag_type,onclick,click_cnt,stroke_color,stroke_opacity,fill_color,fill_opacity,use_offset,use_snap);
11806	schaersvoo	2105	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
14044	schaersvoo	2106	snprintf(tmp_buffer,string_length,"draw_xml(%d,%d,%d,\"%s\",%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d);\n",canvas_root_id,int_data[0],int_data[1],temp,drag_type,onclick,click_cnt,stroke_color,stroke_opacity,fill_color,fill_opacity,use_offset,use_snap);
11806	schaersvoo	2107	add_to_buffer(tmp_buffer);
		2108	if(onclick == 1 \|\| onclick == 2 ){click_cnt++;}
14038	schaersvoo	2109	use_offset = 0;
11806	schaersvoo	2110	break;
		2111	default:break;
8366	schaersvoo	2112	}
		2113	}
		2114	break;
8386	schaersvoo	2115
11806	schaersvoo	2116	case IMAGEFILL:
7614	schaersvoo	2117	/*
11996	schaersvoo	2118	@ imagefill x,y,scaling to xsize × ysize?,image_url
11874	schaersvoo	2119	@ The next suitable <b>filled object</b> will be filled with "image_url" tiled
		2120	@ scaling to xsize × ysize ? ... 1 = yes 0 = no
		2121	@ After pattern filling ,the fill-color should be reset !
		2122	@ wims getins / image from class directory : imagefill 80,80,my_image.gif
		2123	@ normal url : imagefill 80,80,0,$module_dir/gifs/my_image.gif
		2124	@ normal url : imagefill 80,80,1,http://adres/a/b/c/my_image.jpg
		2125	@ if dx,dy is larger than the image, the whole image will be background to the next object.
13967	schaersvoo	2126	@%imagefill_tile%size 400,400%xrange -10,10%yrange -10,10%linewidth 3%circles blue,0,0,5,3,2,5%imagefill 1.5,1.5,0,gifs/en.gif%imagefill -5,5,0,gifs/logo/wimsedu.png
		2127	@%imagefill_scale%size 400,400%xrange -10,10%yrange -10,10%linewidth 3%circles blue,0,0,5,3,2,5%imagefill 1.5,1.5,1,gifs/en.gif%imagefill -5,5,1,gifs/logo/wimsedu.png
7614	schaersvoo	2128	*/
11806	schaersvoo	2129	if( js_function[DRAW_IMAGEFILL] != 1 ){ js_function[DRAW_IMAGEFILL] = 1;}
11854	schaersvoo	2130	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		2131	js_function[DRAW_FILLTOBORDER] = 1;
		2132	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		2133	}
11874	schaersvoo	2134	for(i=0 ;i < 4 ; i++){
7614	schaersvoo	2135	switch(i){
11806	schaersvoo	2136	case 0:int_data[0] = (int) (get_real(infile,0));break;
		2137	case 1:int_data[1] = (int) (get_real(infile,0));break;
11874	schaersvoo	2138	case 2:int_data[2] = (int) (get_real(infile,0));break; /* 0 \| 1 */
		2139	case 3: URL = get_string_argument(infile,1);
		2140	string_length = snprintf(NULL,0, "draw_imagefill(%d,%d,%d,\"%s\",%d,%d,%d,%d);\n",STATIC_CANVAS+fill_cnt,int_data[0],int_data[1],URL,xsize,ysize,use_userdraw,int_data[2]);
11806	schaersvoo	2141	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11874	schaersvoo	2142	snprintf(tmp_buffer,string_length,"draw_imagefill(%d,%d,%d,\"%s\",%d,%d,%d,%d);\n",STATIC_CANVAS+fill_cnt,int_data[0],int_data[1],URL,xsize,ysize,use_userdraw,int_data[2]);
11806	schaersvoo	2143	add_to_buffer(tmp_buffer);
11874	schaersvoo	2144	fill_cnt++;
11806	schaersvoo	2145	break;
7614	schaersvoo	2146	}
		2147	}
11806	schaersvoo	2148	reset();
		2149	break;
14038	schaersvoo	2150
		2151	case IMAGEPALETTE:
		2152	/*
		2153	@ imagepalette image1,image2,image3,...
		2154	@ if used before & together with command <a href='#multidraw'>'mmultidraw images,..,...,etc'</a> the imag as will be presented in a small table in the 'control panel'
		2155	@%imagepalette%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%copy 0,0,-1,-1,-1,-1,gifs/images/skull_and_crossbones50.png%fontcolor green%fontfamily Bold 42pt Ariel%imagepalette gifs/ca.gif,gifs/en.gif,gifs/nl.gif,gifs/fr.gif,gifs/cn.gif,gifs/de.gif,gifs/kh.gif,gifs/it.gif%multiuserinput 0,0,1%inputstyle color:blue;%multisnaptogrid 1,1,1%multilinewidth 0,4,0%# attention: use unicode text input without the slash %# \u222D ---> u222D at least will sometimes work%# otherwise cut&past unicode symbols into inputfield...%multilabel TEXT,REACTION ARROW,FLAGS,STOP DRAWING%multidraw text,arrow,images
		2156	*/
		2157	temp = get_string(infile,1);
		2158	temp = str_replace(temp,",","\",\"");
		2159	if( use_tooltip == 1 ){canvas_error("command 'imagepalette' is incompatible with command 'intooltip tip_text',as they use the same div-element ");}
		2160	fprintf(js_include_file,"\nvar current_id;var imagepalette = [\" %s \"];\n",temp);
		2161	break;
		2162
11806	schaersvoo	2163	case INPUTSTYLE:
		2164	/*
		2165	@ inputstyle style_description
		2166	@ may be used before any 'style-able' html object.(like inputfields or buttons)<br />or any html objects that are generated by some canvasdraw commands
12107	schaersvoo	2167	@%inputstyle%size 400,400%xrange -10,10%yrange -10,10%inputstyle color:blue;font-weight:bold;font-style:italic;font-size:16pt;text-align:center%input 0,0,10,1,Hello
11806	schaersvoo	2168	*/
		2169	input_style = get_string(infile,1);
7614	schaersvoo	2170	break;
11806	schaersvoo	2171	case INPUT:
		2172	/*
		2173	@ input x,y,size,editable,value
		2174	@ to set inputfield "readonly", use editable = 0
		2175	@ only active inputfields (editable = 1) will be read with read_canvas();
13948	schaersvoo	2176	@ if "$status=done" (e.g. in answer.phtml) the inputfield will be cleared and set readonly<br />override this by keyword <a href="#status">'status'</a>
11806	schaersvoo	2177	@ may be further controlled by <a href="#inputstyle">"inputstyle"</a> (inputcss is not yet implemented...)
		2178	@ if mathml inputfields are present and / or some userdraw is performed, these data will <b>not</b> be send as well (javascript:read_canvas();)
		2179	@ use keyword <a href='#xoffset'>xoffset \| centered</a> if the inputfield should be centered on (x:y)<br /> default is the left top corner is (x:y)
13953	schaersvoo	2180	@ if the student must place an inputfield(s) somewhere on the canvas, use command <a href="#userdraw">userdraw input,color</a> or make use of a command like <a href="#userdraw">userdraw text,color</a>
		2181	@%input%size 400,400%xrange -10,10%yrange -10,10%linewidth 6%point 1,2,red%input 1,2,5,1, ?%point -5,5,red%input -5,5,5,1, ?%point 6,-5,red%input 6,-5,5,1, ?%point -5,-8,red%input -5,-8,5,1, ?
11806	schaersvoo	2182	*/
		2183	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
		2184	for(i = 0 ; i<5;i++){
		2185	switch(i){
		2186	case 0: int_data[0]=x2px(get_real(infile,0));break;/* x in px */
		2187	case 1: int_data[1]=y2px(get_real(infile,0));break;/* y in px */
		2188	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break; /* size */
		2189	case 3: if( get_real(infile,1) >0){int_data[3] = 1;}else{int_data[3] = 0;};break; /* readonly */
		2190	case 4:
		2191	temp = get_string_argument(infile,1);
		2192	string_length = snprintf(NULL,0, "draw_inputs(%d,%d,%d,%d,%d,%d,\"%s\",\"%s\",%d);\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],input_style,temp,use_offset);
		2193	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		2194	snprintf(tmp_buffer,string_length,"draw_inputs(%d,%d,%d,%d,%d,%d,\"%s\",\"%s\",%d);\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],input_style,temp,use_offset);
		2195	add_to_buffer(tmp_buffer);
		2196	input_cnt++;break;
		2197	default: break;
		2198	}
		2199	}
		2200	if(reply_format == 0 ){reply_format = 15;}
		2201	reset();
		2202	break;
8386	schaersvoo	2203
11806	schaersvoo	2204	case INTOOLTIP:
		2205	/*
		2206	@ intooltip link_text
		2207	@ link_text is a single line (span-element)
		2208	@ link_text may also be an image URL 'http://some_server/images/my_image.png' or '$module_dir/gifs/my_image.jpg'
		2209	@ link_text may contain HTML markup
		2210	@ the canvas will be displayed in a tooltip on 'link_text'
		2211	@ the canvas is default transparent: use command <a href="#bgcolor">'bgcolor color'</a> to adjust background-color<br />the link text will also be shown with this 'bgcolor'.
		2212	@ many 'userinput stuff' will use the tooltip_placeholder_div element...only one is defined in the wims-page<br />and are therefor these commands are mutually exclusive.<br />keep this in mind...
13953	schaersvoo	2213	@%intooltip%size 400,400%xrange -10,10%yrange -10,10%fontfamily Bold 42pt Courier%string black,0,0,Hello World%intooltip <span style="background-color:black;color:white;font-style:bold;font-size:48pt;"> CLICK <br /> HERE </span>
11806	schaersvoo	2214	*/
		2215	if(use_input_xy != FALSE ){canvas_error("intooltip can not be combined with userinput_xy or other commands using the tooltip-div...see documentation");}
		2216	if( use_tooltip == 1 ){ canvas_error("command 'intooltip' cannot be combined with command 'popup'...");}
		2217	tooltip_text = get_string(infile,1);
		2218	if(strstr(tooltip_text,"\"") != 0 ){ tooltip_text = str_replace(tooltip_text,"\"","'"); }
		2219	use_tooltip = 1;
		2220	break;
		2221
		2222	case JSCURVE:
7614	schaersvoo	2223	/*
11893	schaersvoo	2224	@ jscurve color,formula1(x),formula2(x),formula3(x),...
11806	schaersvoo	2225	@ alternative : jsplot color,formula(x)
11893	schaersvoo	2226	@ your function will be plotted by the javascript engine of the client browser
		2227	@ if <a href='trange'>trange</a> is defined, the two functions will be plotted parametric<br /><b>note</b>: use <i>x</i> as variable...and not <i>t</i>. Use keyword <a href='#animate'>animate</a> to animate a point on the curve
11806	schaersvoo	2228	@ use only basic math in your curve:<br /> sqrt,^,asin,acos,atan,log,pi,abs,sin,cos,tan,e
		2229	@ use parenthesis and rawmath : use 2*x instead of 2x ; use 2^(sin(x))...etc etc<br />use error console to debug any errors...
		2230	@ <b>attention</b> : last "precision" command in the canvasdraw script determines the calculation precision of the javascript curve plot !
		2231	@ no validity check is done by wims.
		2232	@ zooming & panning are implemented :<br />use command 'zoom color' for mouse driven zooming<br />or use keyword 'setlimits' for inputfields setting xmin/xmax, ymin/ymax
		2233	@ zooming & panning is better than for curves produced by command <a href="#curve">curve color,formula</a> because for avery change in x/y-range the curve is recalculated in javascript
11893	schaersvoo	2234	@ use keyword <a href='animate'>animate</a> for animating a point on the curve
11806	schaersvoo	2235	@ use command 'trace_jscurve formula(x)` for tracing
14032	schaersvoo	2236	@ use command 'jsmath formula(x)` for calculating and displaying indiviual points on the curve
11806	schaersvoo	2237	@ can <b>not</b> be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> (yet)
		2238	@ commands plotjump / plotstep are not active for 'jscurve'
		2239	@ every command jscurve will produce a new canvas (canvastype 111,112,113...) for this one curve.
13936	bpr	2240	@ plotting multiple js-curves on the same canvas <br/>(for example if you want to use 'userdraw clickfill,color' on <a href="#canvastype">canvastype</a> number 111 ,use :<br/> jscurve red,fun1(x),fun2(x)...fun_n(x)<br /> you must specify individual multistrokecolors & multistrokeopacity & multilinewidth for these multiple js-curves to use different colors.<br />otherwise all curves will be the same color...<br />use commands like: <a href="#multistrokecolors">multistrokecolors</a>,<a href="#multilinewidth">multilinewidth</a>, <a href="#multidash">multidash</a><br />, <a href="#multistrokeopacity">multistroke</a><br />the <b>color</b> given for the command "jscurve <b>color</b>,formulas(x)" will not be used in that case...<br />but the color argument must still be given in any case (otherwise syntax error...)
12107	schaersvoo	2241	@%jscurve%size 400,400%xrange -10,10%yrange -10,10%multicolors red,green,blue,orange%multilinewidth 1,1,1%multistrokeopacity 0.5,0.8,1.0%jscurve red,sin(x),1/sin(x),sin(x^2)
11806	schaersvoo	2242	*/
		2243	stroke_color = get_color(infile,0);
		2244	if( use_js_math == FALSE){/* add this stuff only once...*/
		2245	add_to_js_math(js_include_file);
		2246	use_js_math = TRUE;
		2247	}
		2248	if( use_js_plot == FALSE){
		2249	use_js_plot = TRUE;
		2250	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		2251	}
11893	schaersvoo	2252	int use_paramteric = 0;
		2253	if( tmin != 0 && tmax !=0){use_parametric = 1;}
11806	schaersvoo	2254	temp = get_string(infile,1);
		2255	temp = str_replace(temp,",","\",\"");
14032	schaersvoo	2256	string_length = snprintf(NULL,0, "jsplot(%d,[\"%s\"],[%d],[\"%s\"],[%.2f],[%d],%d,%d,[%f,%f],%d,%d,%d); ",JSPLOT_CANVAS+jsplot_cnt,temp,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],tmin,tmax,plot_steps,use_parametric,use_animate);
11806	schaersvoo	2257	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11893	schaersvoo	2258	snprintf(tmp_buffer,string_length,"jsplot(%d,[\"%s\"],[%d],[\"%s\"],[%.2f],[%d],%d,%d,[%f,%f],%d,%d,%d); ",JSPLOT_CANVAS+jsplot_cnt,temp,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],tmin,tmax,plot_steps,use_parametric,use_animate);
11806	schaersvoo	2259	add_to_buffer(tmp_buffer);
		2260	jsplot_cnt++;
		2261	/* we need to create multiple canvasses, so we may zoom and pan ?? */
		2262	break;
		2263
		2264	case JSMATH:
		2265	/*
		2266	@ jsmath some_math_function
		2267	@ will calculate an y-value from a userinput x-value and draws a crosshair on these coordinates.
		2268	@ default labels 'x' and 'y'<br />the commands 'xlabel some_x_axis_name' and 'ylabel some_y_axis_name' will set the label for the input fields
		2269	@ use command 'inputstyle some_css' for styling the display fields. Use command 'fontsize int' to size the labels 'x' and 'y'
		2270	@ the client browser will convert your math function to javascript math.<br />use parenthesis and rawmath : use 2*x instead of 2x etc etc<br />no check is done on the validity of your function and/or syntax<br />use error console to debug any errors...
		2271	@ be aware that the formula's of the plotted function(s) can be found in the page javascript source
12111	schaersvoo	2272	@%jsmath%size 400,400%xrange -10,10%yrange -10,10%jsplot blue,sin(x^2)%jsmath sin(x^2)
11806	schaersvoo	2273	*/
		2274	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		2275	if( use_js_math == FALSE){
		2276	add_to_js_math(js_include_file);
		2277	use_js_math = TRUE;
		2278	}
		2279	add_calc_y(js_include_file,canvas_root_id,get_string(infile,1),font_size,input_style);
		2280	break;
		2281	case KILLAFFINE:
		2282	/*
		2283	@ killaffine
		2284	@ keyword : resets the transformation matrix to 1,0,0,1,0,0
		2285	*/
		2286	use_affine = FALSE;
		2287	snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
		2288	break;
		2289
		2290	case KILLROTATE:
		2291	/*
		2292	@ killrotate will reset the command <a href="#rotationcenter">rotationcenter xc,yc</a>
		2293	@ a following rotate command will have the first object point as rotation center
		2294	@ if not set, the rotation center will remain unchanged
		2295	*/
		2296	rotation_center= my_newmem(6);
		2297	snprintf(rotation_center,5,"null");
		2298	break;
		2299
		2300	case KILLSLIDER:
		2301	/*
		2302	@ killslider
		2303	@ keyword (no arguments required)
		2304	@ ends grouping of object under a previously defined slider
		2305	*/
		2306	slider = 0;
		2307	break;
		2308
		2309	case KILLTRANSLATION:
		2310	/*
		2311	@ killtranslation
		2312	@ alternative : killtranslate
		2313	@ resets the translation matrix to 1,0,0,1,0,0
		2314	*/
		2315	use_affine = FALSE;
		2316	snprintf(affine_matrix,14,"[1,0,0,1,0,0]");
		2317	break;
		2318
		2319	case LINE:
		2320	/*
		2321	@ line x1,y1,x2,y2,color
		2322	@ draw a line through points (x1:y1)--(x2:y2) in color 'color'
		2323	@ or use command 'curve color,formula' to draw the line <br />(uses more points to draw the line; is however better draggable)
9406	schaersvoo	2324	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12107	schaersvoo	2325	@%line%size 400,400%xrange -10,10%yrange -10,10%line 0,1,2,-1,green
7614	schaersvoo	2326	*/
8386	schaersvoo	2327	for(i=0;i<5;i++){
7614	schaersvoo	2328	switch(i){
11806	schaersvoo	2329	case 0: double_data[10]= get_real(infile,0);break; /* x-values */
		2330	case 1: double_data[11]= get_real(infile,0);break; /* y-values */
		2331	case 2: double_data[12]= get_real(infile,0);break; /* x-values */
		2332	case 3: double_data[13]= get_real(infile,0);break; /* y-values */
		2333	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		2334	if( double_data[10] == double_data[12] ){ /* vertical line*/
		2335	double_data[1] = xmin;
		2336	double_data[3] = ymax;
		2337	double_data[0] = double_data[10];
		2338	double_data[2] = double_data[10];
		2339	}
		2340	else
		2341	{
		2342	if( double_data[11] == double_data[13] ){ /* horizontal line */
		2343	double_data[1] = double_data[11];
		2344	double_data[3] = double_data[11];
		2345	double_data[0] = ymin;
		2346	double_data[2] = xmax;
		2347	}
		2348	else
		2349	{
		2350	/* m */
		2351	double_data[5] = (double_data[13] - double_data[11]) /(double_data[12] - double_data[10]);
		2352	/* q */
		2353	double_data[6] = double_data[11] - ((double_data[13] - double_data[11]) /(double_data[12] - double_data[10]))*double_data[10];
		2354
		2355	/xmin,mxmin+q,xmax,mxmax+q/
		2356
		2357	double_data[1] = (double_data[5])*(xmin)+(double_data[6]);
		2358	double_data[3] = (double_data[5])*(xmax)+(double_data[6]);
		2359	double_data[0] = xmin;
		2360	double_data[2] = xmax;
		2361	}
		2362	}
		2363	decimals = find_number_of_digits(precision);
14045	schaersvoo	2364	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	2365	if(onclick > 0){click_cnt++;}
		2366	/* click_cnt++;*/
		2367	reset();
		2368	break;
7614	schaersvoo	2369	}
		2370	}
		2371	break;
8386	schaersvoo	2372
11806	schaersvoo	2373	case LINES:
8370	schaersvoo	2374	/*
11806	schaersvoo	2375	@ lines color,x1,y1,x2,y2...x_n-1,y_n-1,x_n,y_n
		2376	@ draw multiple lines through points (x1:y1)--(x2:y2) ...(x_n-1:y_n-1)--(x_n:y_n) in color 'color'
		2377	@ or use multiple commands 'curve color,formula' or "jscurve color,formule" to draw the line <br />(uses more points to draw the line; is however better draggable)
		2378	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		2379	@ <b>attention</b>: the flydraw command "lines" is equivalent to canvasdraw command <a href="#polyline">"polyline"</a>
12107	schaersvoo	2380	@%lines%size 400,400%xrange -10,10%yrange -10,10%lines green,0,1,1,3,0,0,1,3,0,0,-2,1
8370	schaersvoo	2381	*/
		2382	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		2383	fill_color = stroke_color;
		2384	i=0;
		2385	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	2386	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
8370	schaersvoo	2387	if(i%2 == 0 ){
		2388	double_data[i] = get_real(infile,0); /* x */
		2389	}
		2390	else
		2391	{
		2392	double_data[i] = get_real(infile,1); /* y */
		2393	}
		2394	i++;
		2395	}
		2396	decimals = find_number_of_digits(precision);
		2397	for(c = 0 ; c < i-1 ; c = c+4){
11806	schaersvoo	2398	if( double_data[c] == double_data[c+2] ){ /* vertical line*/
		2399	double_data[c+1] = xmin;
		2400	double_data[c+3] = ymax;
		2401	double_data[c+2] = double_data[c];
		2402	}
		2403	else
		2404	{
		2405	if( double_data[c+1] == double_data[c+3] ){ /* horizontal line */
		2406	double_data[c+3] = double_data[c+1];
		2407	double_data[c] = ymin;
		2408	double_data[c+2] = xmax;
		2409	}
		2410	else
		2411	{
		2412	/* m */
		2413	double m = (double_data[c+3] - double_data[c+1]) /(double_data[c+2] - double_data[c]);
		2414	/* q */
		2415	double q = double_data[c+1] - ((double_data[c+3] - double_data[c+1]) /(double_data[c+2] - double_data[c]))*double_data[c];
		2416	/xmin,mxmin+q,xmax,mxmax+q/
		2417	double_data[c+1] = (m)*(xmin)+(q);
		2418	double_data[c+3] = (m)*(xmax)+(q);
		2419	double_data[c] = xmin;
		2420	double_data[c+2] = xmax;
		2421	}
		2422	}
14045	schaersvoo	2423	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8379	schaersvoo	2424	if(onclick > 0){click_cnt++;}
		2425	/* click_cnt++; */
8370	schaersvoo	2426	}
		2427	reset();
		2428	break;
8386	schaersvoo	2429
11806	schaersvoo	2430
		2431	case LINEWIDTH:
7614	schaersvoo	2432	/*
11806	schaersvoo	2433	@ linewidth int
		2434	@ default 1
12107	schaersvoo	2435	@%linewidth%size 400,400%xrange -10,10%yrange -10,10%linewidth 1%line -5,-5,-5,5,red%linewidth 2%line -4,-5,-4,5,green%linewidth 3%line -3,-5,-3,5,blue%linewidth 4%line -2,-5,-2,5,orange%linewidth 1%line -1,-5,-1,5,brown%linewidth 5%line 1,-5,1,5,cyan%linewidth 6%line 3,-5,3,5,purple%linewidth 7%line 5,-5,5,5,black
7614	schaersvoo	2436	*/
11806	schaersvoo	2437	line_width = (int) (get_real(infile,1));
		2438	break;
		2439
		2440	case LATTICE:
		2441	/*
		2442	@ lattice x0,y0,xv1,yv1,xv2,yv2,n1,n2,color
		2443	@ can <b>not</b> be set "onclick" or "drag xy"
12107	schaersvoo	2444	@%lattice%size 400,400%xrange -10,10%yrange -10,10%fillcolor red%linewidth 2%lattice -10,-10,0,1,1,1,10,10,red%fillcolor blue%lattice 10,-10,0,1,-1,1,10,10,blue
11806	schaersvoo	2445	*/
		2446	if( js_function[DRAW_LATTICE] != 1 ){ js_function[DRAW_LATTICE] = 1;}
		2447	for( i = 0; i<9; i++){
7614	schaersvoo	2448	switch(i){
14032	schaersvoo	2449	case 0: int_data[0] = x2px(get_real(infile,0));break; /* x0-values -> x-pixels*/
		2450	case 1: int_data[1] = y2px(get_real(infile,0));break; /* y0-values -> y-pixels*/
		2451	case 2: int_data[2] = (int) (get_real(infile,0));break; /* x1-values -> x-pixels*/
		2452	case 3: int_data[3] = (int) -1(get_real(infile,0));break; / y1-values -> y-pixels*/
		2453	case 4: int_data[4] = (int) (get_real(infile,0));break; /* x2-values -> x-pixels*/
		2454	case 5: int_data[5] = (int) -1(get_real(infile,0));break; / y2-values -> y-pixels*/
11806	schaersvoo	2455	case 6: int_data[6] = (int) (get_real(infile,0));break; /* n1-values */
		2456	case 7: int_data[7] = (int) (get_real(infile,0));break; /* n2-values */
		2457	case 8: stroke_color=get_color(infile,1);
7614	schaersvoo	2458	decimals = find_number_of_digits(precision);
11996	schaersvoo	2459	string_length = snprintf(NULL,0,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,%s,%d); ",STATIC_CANVAS,line_width,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix,use_filled);
11806	schaersvoo	2460	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11996	schaersvoo	2461	snprintf(tmp_buffer,string_length,"draw_lattice(%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%.2f,%d,%s,%d); ",STATIC_CANVAS,line_width,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],int_data[5],int_data[6],int_data[7],fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix,use_filled);
11806	schaersvoo	2462	add_to_buffer(tmp_buffer);break;
		2463	default:break;
7614	schaersvoo	2464	}
		2465	}
11806	schaersvoo	2466	reset();
7614	schaersvoo	2467	break;
8363	schaersvoo	2468
11806	schaersvoo	2469	case LEVELCURVE:
8363	schaersvoo	2470	/*
11806	schaersvoo	2471	@ levelcurve color,expression in x/y,l1,l2,...
		2472	@ draws very primitive level curves for expression, with levels l1,l2,l3,...,l_n
		2473	@ the quality is <b>not to be compared</b> with the Flydraw levelcurve. <br />(choose flydraw if you want quality...)
		2474	@ every individual level curve may be set 'onclick / drag xy' <br />e.g. every single level curve (l1,l2,l3...l_n) has a unique identifier
		2475	@ note : the arrays for holding the javascript data are limited in size
		2476	@ note : reduce image size if javascript data arrays get overloaded<br />(command 'plotsteps int' will not control the data size of the plot...)
12107	schaersvoo	2477	@%levelcurve%size 400,400%xrange -10,10%yrange -10,10%levelcurve red,x*y,1,2,3,4
8363	schaersvoo	2478	*/
11806	schaersvoo	2479	fill_color = get_color(infile,0);
		2480	char *fun1 = get_string_argument(infile,0);
		2481	if( strlen(fun1) == 0 ){canvas_error("function is NOT OK !");}
		2482	i = 0;
		2483	done = FALSE;
		2484	while( !done ){
		2485	double_data[i] = get_real(infile,1);
		2486	i++;
		2487	}
		2488	for(c = 0 ; c < i; c++){
14045	schaersvoo	2489	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,16,%s,[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,eval_levelcurve(xsize,ysize,fun1,xmin,xmax,ymin,ymax,plot_steps,precision,double_data[c]),line_width,line_width,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	2490	if(onclick > 0){click_cnt++;}
		2491	/* click_cnt++; */
		2492	}
		2493	reset();
		2494	break;
8386	schaersvoo	2495
11806	schaersvoo	2496	case LEGEND:
		2497	/*
		2498	@ legend string1:string2:string3....string_n
		2499	@ will be used to create a legend for a graph
		2500	@ also see command <a href='#piechart'>'piechart'</a>
		2501	@ will use the same colors per default as used in the graphs : use command <a href='#legendcolors'>'legendcolors'</a> to override the default
		2502	@ use command <a href="#fontsize">fontsize</a> to adjust. (command "fontfamily" is not active for command "legend")
13951	schaersvoo	2503	@%legend%size 400,400%xrange -10,10%yrange -10,10%bgcolor white%fontsize 16%legend legend 1:legend 2:legend 3:legend 4:this is legend 5:legend 6:another legend abc%legendcolors red:green:blue%grid 1,1,white%# note : command "grid" is mandatory%# just set grid invisible if not wanted
11806	schaersvoo	2504	*/
		2505	temp = get_string(infile,1);
		2506	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
		2507	legend_cnt++; /* attention :starts with -1 : it will be used in piechart etc */
		2508	fprintf(js_include_file,"var legend%d = [\"%s\"];",legend_cnt,temp);
		2509	break;
		2510
		2511	case LEGENDCOLORS:
		2512	/*
		2513	@ legendcolors color1:color2:color3:...:color_n
		2514	@ will be used to colour a legend: use this command after the legend command ! e.g.<br />legend test1:test2:test3<br />legendcolors blue:red:orange
		2515	@ make sure the number of colours match the number of legend items
		2516	@ command 'legend' in case of 'piechart' and 'barchart' will use these colours per default (no need to specify 'legendcolors'
13960	bpr	2517	@%legendcolors%size 400,400%xrange -10,10%yrange -10,10%fontsize 18%legend legend 1:legend 2:legend 3%legendcolors red:green:blue%grid 1,1,grey
11806	schaersvoo	2518	*/
		2519	if(legend_cnt == -1){canvas_error("use command \"legend\" before command \"legendcolors\" ! ");}
		2520	temp = get_string(infile,1);
		2521	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
		2522	fprintf(js_include_file,"var legendcolors%d = [\"%s\"];",legend_cnt,temp);
		2523	break;
		2524
		2525	case LINEGRAPH: /* scheme: var linegraph_0 = [ 'stroke_color','line_width','use_dashed' ,'dashtype0','dashtype1','x1','y1',...,'x_n','y_n'];*/
		2526	/*
		2527	@ linegraph x1:y1:x2:y2...x_n:y_n
		2528	@ will plot your data in a graph
		2529	@ may <b>only</b> to be used together with command <a href='#grid'>'grid'</a>
		2530	@ can be used together with freestyle x-axis/y-axis texts : see commands <a href='#xaxis'>'xaxis'</a>,<a href='#xaxisup'>'xaxisup'</a> and <a href='#yaxis'>'yaxis'</a>
		2531	@ use command <a href='#legend'>'legend'</a> to provide an optional legend in right-top-corner
		2532	@ also see command <a href='#piechart'>'piechart'</a>
		2533	@ multiple linegraphs may be used in a single plot
		2534	@ note: your arguments are not checked by canvasdraw : use your javascript console in case of trouble...
		2535	@ <ul><li>use command <a href='#strokecolor'>'strokecolor'</a> before a command 'linegraph' to set the color of this graph</li><li>use command <a href='#linewidth'>'linewidth'</a> before command 'linegraph' to set linewidth of this graph</li><li>use keyword <a href='#dashed'>'dashed'</a> before command 'linegraph' to set dashing of the graph</li><li>if dashing is set, use command <a href='#dashtype'>'dashtype'</a> before command 'linegraph' to set the type of dashing of the (individual) graph</li></ul>
12107	schaersvoo	2536	@%linegraph%size 400,400%xrange -10,10%yrange -10,10%strokecolor red%linegraph -10:1:-5:-1:3:3:10:-5%strokecolor blue%linegraph -10:-1:-5:1:3:-3:10:5%dashed%strokecolor green%linegraph -10:2:-5:-2:3:4:10:2%grid 1,1,grey
11806	schaersvoo	2537	*/
		2538	temp = get_string(infile,1);
		2539	if( strstr( temp,":") != 0 ){ temp = str_replace(temp,":","\",\""); }
		2540	fprintf(js_include_file,"var linegraph_%d = [\"%s\",\"%d\",\"%d\",\"%d\",\"%d\",\"%s\"];",linegraph_cnt,stroke_color,line_width,use_dashed,dashtype[0],dashtype[1],temp);
		2541	linegraph_cnt++;
		2542	reset();
		2543	break;
		2544
		2545	case MATHML:
		2546	/*
		2547	@ mathml x1,y1,x2,y2,mathml_string
14038	schaersvoo	2548	@ the mathml object is centered at (x1:y1)
13952	schaersvoo	2549	@ the 'mathml_string' can be produced using WIMS commands like 'texmath' followed by 'mathmlmath'... or write correct TeX and use only 'mathmlmath'
13829	bpr	2550	@ mathml will be displayed in a rectangle left top (x1:y1)...<br />x2 and y2 are still needed, but not used as the right bottom corner of the embedded div element.
11806	schaersvoo	2551	@ in case of drag(xy\|x\|y) \| onclick the div rectangle left to corner will be the drag-anchor of the mathml object
13988	bpr	2552	@ can be set onclick <br />javascript:read_dragdrop(); will return click numbers of mathml-objects<br />if 4 clickable object are drawn, the reply could be 1,0,1,0 ... meaning clicked on the first and third object
11806	schaersvoo	2553	@ can be set draggable<br /> the javascript:read_dragdrop() will return all coordinates <br />in same order as the canvas script: unmoved object will have their original coordinates...
		2554	@ snaptogrid is supported...snaptopoints will work, but use with care...due to the primitive dragging<br />technically: the dragstuff library is not used...the mathml is embedded in a new div element and not in the html5-canvas
13829	bpr	2555	@ when clicked, the mathml object will be drawn in red color; the div background color will be determined by the <a href="#fillcolor">'fillcolor'</a> and <a href="#opacity">'opacity'</a> settings
11806	schaersvoo	2556	@ userdraw may be combined with 'mathml' ; the read_canvas() will contain the drawing.
		2557	@ draggable or onclick 'external images' from command <a href='#copyresized'>copy or copyresized</a> can be combined with drag and/or onclick mathml
		2558	@ other drag objects (circles/rects etc) are supported , but read_dragdrop() will probably be difficult to interpret...
		2559	@ if inputfields are incorporated in mathml (with id's : id='mathml0',id='mathml1',...id='mathml_n')<br />the user_input values will be read by javascript:read_mathml();<br /><b>attention</b>: if after this mathml-input object other user-interactions are included, these will read mathml too using "read_canvas();"
		2560	@ If other inputfields (command input / command textarea) or userdraw is performed, the function read_canvas() will not read mathml. Use some generic function to read it....
14038	schaersvoo	2561	@ use keyword <a href='#centered'>centered</a> to center the mathml/xml object on (x1:y1)
13829	bpr	2562	@%mathml_onclick%size 400,400%xrange -10,10%yrange -10,10%onclick%strokecolor red%mathml -5,5,0,0,<span style="font-size:1em;"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mstyle id="wims_mathml366290"><mrow><mo stretchy="true">[</mo><mtable rowspacing="0.5ex" columnalign=" left " columnlines=" none " rowlines=" none " ><mtr><mtd><mi>f</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><mstyle displaystyle="true"><mfrac><mn>1</mn><mn>2</mn></mfrac></mstyle><mo>⋅</mo><msup><mi>x</mi> <mn>2</mn></msup></mtd></mtr> <mtr><mtd><mi>g</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><msqrt><mstyle displaystyle="true"><mfrac><mn>1</mn><mrow><msup><mi>x</mi> <mn>2</mn></msup></mrow></mfrac></mstyle></msqrt></mtd></mtr></mtable><mo stretchy="true">]</mo></mrow></mstyle></math></span>%onclick%strokecolor blue%mathml 5,5,0,0,<span style="font-size:1em;"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mstyle id="wims_mathml580175" ><mrow><mo stretchy="true">[</mo><mtable rowspacing="0.5ex" columnalign=" left " columnlines=" none " rowlines=" none " ><mtr><mtd><mi>f</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><mstyle displaystyle="true"><mfrac><mn>1</mn><mrow><mi>sin</mi><mrow><mo stretchy="true">(</mo><msup><mi>x</mi> <mn>2</mn></msup><mo stretchy="true">)</mo></mrow></mrow></mfrac></mstyle></mtd></mtr> <mtr><mtd><mi>g</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><msqrt><mrow><mi>sin</mi><mrow><mo stretchy="true">(</mo><msup><mi>x</mi> <mn>2</mn></msup><mo stretchy="true">)</mo></mrow></mrow></msqrt></mtd></mtr></mtable><mo stretchy="true">]</mo></mrow></mstyle></math></span>
13952	schaersvoo	2563	@%mathml_drag%size 400,400%xrange -10,10%yrange -10,10%drag xy%strokecolor red%mathml -5,5,0,0,<span style="font-size:1em;"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mstyle id="wims_mathml366290"><mrow><mo stretchy="true">[</mo><mtable rowspacing="0.5ex" columnalign=" left " columnlines=" none " rowlines=" none " ><mtr><mtd><mi>f</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><mstyle displaystyle="true"><mfrac><mn>1</mn><mn>2</mn></mfrac></mstyle><mo>⋅</mo><msup><mi>x</mi> <mn>2</mn></msup></mtd></mtr> <mtr><mtd><mi>g</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><msqrt><mstyle displaystyle="true"><mfrac><mn>1</mn><mrow><msup><mi>x</mi> <mn>2</mn></msup></mrow></mfrac></mstyle></msqrt></mtd></mtr></mtable><mo stretchy="true">]</mo></mrow></mstyle></math></span>%drag xy%strokecolor blue%mathml 5,5,0,0,<span style="font-size:1em;"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mstyle id="wims_mathml580175" ><mrow><mo stretchy="true">[</mo><mtable rowspacing="0.5ex" columnalign=" left " columnlines=" none " rowlines=" none " ><mtr><mtd><mi>f</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><mstyle displaystyle="true"><mfrac><mn>1</mn><mrow><mi>sin</mi><mrow><mo stretchy="true">(</mo><msup><mi>x</mi> <mn>2</mn></msup><mo stretchy="true">)</mo></mrow></mrow></mfrac></mstyle></mtd></mtr> <mtr><mtd><mi>g</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><msqrt><mrow><mi>sin</mi><mrow><mo stretchy="true">(</mo><msup><mi>x</mi> <mn>2</mn></msup><mo stretchy="true">)</mo></mrow></mrow></msqrt></mtd></mtr></mtable><mo stretchy="true">]</mo></mrow></mstyle></math></span>%#click left top corner...then drag...
11806	schaersvoo	2564	*/
14044	schaersvoo	2565	if(use_offset == 0){use_offset = 4;}
11806	schaersvoo	2566	if( js_function[DRAW_XML] != 1 ){ js_function[DRAW_XML] = 1;}
		2567	for(i=0;i<5;i++){
		2568	switch(i){
		2569	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in x/y-range coord system -> pixel width */
14032	schaersvoo	2570	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in x/y-range coord system -> pixel height */
		2571	case 2: int_data[2]=x2px(get_real(infile,0));break;/* no more width needed : overflow */
11806	schaersvoo	2572	case 3: int_data[3]=y2px(get_real(infile,0));break;/* no more height needed : overflow */
		2573	case 4: decimals = find_number_of_digits(precision);
		2574	temp = get_string(infile,1);
		2575	if( strstr(temp,"\"") != 0 ){ temp = str_replace(temp,"\"","'"); }
14044	schaersvoo	2576	string_length = snprintf(NULL,0,"draw_xml(%d,%d,%d,\"%s\",%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d);\n",canvas_root_id,int_data[0],int_data[1],temp,drag_type,onclick,click_cnt,stroke_color,stroke_opacity,fill_color,fill_opacity,use_offset,use_snap);
11806	schaersvoo	2577	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
14044	schaersvoo	2578	snprintf(tmp_buffer,string_length,"draw_xml(%d,%d,%d,\"%s\",%d,%d,%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d);\n",canvas_root_id,int_data[0],int_data[1],temp,drag_type,onclick,click_cnt,stroke_color,stroke_opacity,fill_color,fill_opacity,use_offset,use_snap);
11806	schaersvoo	2579	add_to_buffer(tmp_buffer);
		2580	if(onclick == 1 \|\| onclick == 2 ){click_cnt++;}
14038	schaersvoo	2581	use_offset=0;
11806	schaersvoo	2582	/*
		2583	in case inputs are present , trigger adding the read_mathml()
		2584	if no other reply_format is defined
		2585	note: all other reply types will include a reading of elements with id='mathml'+p)
		2586	*/
		2587	if(strstr(temp,"mathml0") != NULL){
		2588	if(reply_format == 0 ){reply_format = 16;} /* no other reply type is defined */
		2589	}
		2590	break;
		2591	default:break;
		2592	}
		2593	}
		2594	break;
		2595
		2596	case MOUSE:
		2597	/*
		2598	@ mouse color,fontsize
		2599	@ will display the cursor (x:y) coordinates in 'color' and 'font size'<br /> using default fontfamily Ariel
		2600	@ note: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
12107	schaersvoo	2601	@%mouse%size 400,400%xrange -10,10%yrange -10,10%mouse red,22
11806	schaersvoo	2602	*/
		2603	stroke_color = get_color(infile,0);
		2604	font_size = (int) (get_real(infile,1));
		2605	tmp_buffer = my_newmem(26);
13371	schaersvoo	2606	snprintf(tmp_buffer,26,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
11806	schaersvoo	2607	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,2);
		2608	break;
		2609
		2610
		2611	case MOUSE_DEGREE:
		2612	/*
		2613	@ mouse_degree color,fontsize
		2614	@ will display the angle in degrees between x-axis, (0:0) and the cursor (x:y) in 'color' and 'font size'<br /> using a fontfamily Ariel
		2615	@ The angle is positive in QI and QIII and the angle value is negative in QII and QIV
		2616	@ note: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
12107	schaersvoo	2617	@%mouse_degree%size 400,400%xrange -10,10%yrange -10,10%userdraw arc,blue%precision 100000%mouse_degree red,22
11806	schaersvoo	2618	*/
		2619	stroke_color = get_color(infile,0);
		2620	font_size = (int) (get_real(infile,1));
		2621	tmp_buffer = my_newmem(26);
13371	schaersvoo	2622	snprintf(tmp_buffer,26,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
11806	schaersvoo	2623	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,3);
		2624	js_function[JS_FIND_ANGLE] = 1;
		2625	break;
		2626	case MOUSE_DISPLAY:
		2627	/*
		2628	@ display TYPE,color,fontsize
		2629	@ TYPE may be x \| y \| xy \| degree \| radian \| radius
		2630	@ will display the mouse cursor coordinates as x-only,y-only,(x:y),<br />the radius of a circle (this only in case 'userdraw circle(s),color')<br />or the angle in degrees or radians for commands "userdraw arc,color" or protractor , ruler (if set dynamic)
		2631	@ use commands 'xunit' and / or 'yunit' to add the units to the mouse values.<br />The "degree \| radian" will always have the appropriate symbol)
		2632	@ just like commands 'mouse','mousex','mousey','mouse_degree'...only other name)
12111	schaersvoo	2633	@%display_x%size 400,400%xrange -10,10%yrange -10,10%xunit \\u212B%display x,red,22
12107	schaersvoo	2634	@%display_y%size 400,400%xrange -10,10%yrange -10,10%yunit seconds%display y,red,22
13936	bpr	2635	@%display_xy%size 400,400%xrange -10,10%yrange -10,10%xunit centimetre%yunit seconds%display xy,red,22%userdraw segments,blue
12107	schaersvoo	2636	@%display_deg%size 400,400%xrange -10,10%yrange -10,10%display degree,red,22%fillcolor orange%opacity 200,50%userdraw arc,blue
		2637	@%display_rad%size 400,400%xrange -10,10%yrange -10,10%display radian,red,22%fillcolor orange%opacity 200,50%userdraw arc,blue
12111	schaersvoo	2638	@%display_radius%size 400,400%xrange -10,10%yrange -10,10%xunit cm%xunit \\u212b%display radius,red,22%userdraw circle,blue
11806	schaersvoo	2639	*/
		2640	temp = get_string_argument(infile,0);
		2641	if( strstr(temp,"xy") != NULL ){
		2642	int_data[0] = 2;
		2643	}else{
		2644	if( strstr(temp,"y") != NULL ){
		2645	int_data[0] = 1;
		2646	}else{
		2647	if( strstr(temp,"x") != NULL ){
		2648	int_data[0] = 0;
		2649	}else{
		2650	if(strstr(temp,"degree") != NULL){
		2651	int_data[0] = 3;
		2652	js_function[JS_FIND_ANGLE] = 1;
		2653	}else{
		2654	if(strstr(temp,"radian") != NULL){
		2655	int_data[0] = 4;
		2656	js_function[JS_FIND_ANGLE] = 1;
		2657	}else{
		2658	if(strstr(temp,"radius") != NULL){
		2659	int_data[0] = 5;
		2660	}else{
		2661	int_data[0] = 2;
		2662	}
		2663	}
		2664	}
		2665	}
		2666	}
		2667	}
		2668	stroke_color = get_color(infile,0);
		2669	font_size = (int) (get_real(infile,1));
		2670	tmp_buffer = my_newmem(26);
13371	schaersvoo	2671	snprintf(tmp_buffer,26,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
11806	schaersvoo	2672	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,int_data[0]);
		2673	break;
		2674
		2675	case MOUSE_PRECISION:
		2676	/*
		2677	@ precision int
		2678	@ 1 = no decimals ; 10 = 1 decimal ; 100 = 2 decimals etc
		2679	@ may be used / changed before every object
		2680	@ In case of user interaction (like 'userdraw' or 'multidraw') this value will be used to determine the amount of decimals in the reply / answer
13936	bpr	2681	@%precision%size 400,400%xrange -10,10%yrange -10,10%precision 1%userdraw segment,red
11806	schaersvoo	2682	*/
		2683	precision = (int) (get_real(infile,1));
		2684	if(precision < 1 ){precision = 1;};
		2685	break;
		2686
		2687	case MOUSEX:
		2688	/*
		2689	@ mousex color,fontsize
		2690	@ will display the cursor x-coordinate in 'color' and 'font size'<br /> using the fontfamily Ariel
		2691	@ note: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
		2692
		2693	*/
		2694	stroke_color = get_color(infile,0);
		2695	font_size = (int) (get_real(infile,1));
		2696	tmp_buffer = my_newmem(26);
13371	schaersvoo	2697	snprintf(tmp_buffer,26,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
11806	schaersvoo	2698	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,0);
		2699	break;
		2700	case MOUSEY:
		2701	/*
		2702	@ mousey color,fontsize
		2703	@ will display the cursor y-coordinate in 'color' and 'font size'<br /> using default fontfamily Ariel
		2704	@ note: use command 'mouse' at the end of your script code (the same is true for command 'zoom')
		2705
		2706	*/
		2707	stroke_color = get_color(infile,0);
		2708	font_size = (int) (get_real(infile,1));
		2709	tmp_buffer = my_newmem(26);
13371	schaersvoo	2710	snprintf(tmp_buffer,26,"use_mouse_coordinates();\n");add_to_buffer(tmp_buffer);
11806	schaersvoo	2711	add_js_mouse(js_include_file,MOUSE_CANVAS,canvas_root_id,precision,stroke_color,font_size,stroke_opacity,1);
		2712	break;
		2713
		2714	case MULTIDASH:
		2715	/*
		2716	@ multidash 0,1,1
		2717	@ meaning draw objects no. 2 (circle) and 3 (segments), in the list of command like <em>'multifill points,circle,segments'</em>, are dashed
		2718	@ use before command <a href='#multidraw'>'multidraw'</a>
		2719	@ if not set all objects will be set 'not dashed'...<br />unless a generic keyword <em>'dashed'</em> was given before command <em>'multidraw'</em>
		2720	@ the dash-type is not -yet- adjustable <br />(e.g. command <em>dashtype line_px,space_px</em> will give no control over multidraw objects)
		2721	@ wims will <b>not</b> check if the number of 0 or 1's matches the amount of draw primitives...
		2722	@ always use the same sequence as is used for 'multidraw'
		2723	*/
		2724	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2725	temp = get_string(infile,1);
		2726	temp = str_replace(temp,",","\",\"");
		2727	fprintf(js_include_file,"var multidash = [\"%s\"];",temp);
		2728	reset();/* if command 'dashed' was given...reset to not-dashed */
		2729	break;
		2730
		2731	case MULTIDRAW:
		2732	/*
		2733	@ multidraw obj_type_1,obj_type_2...obj_type_11
		2734	@ for simple single object user drawings you could also use command <a href="#userdraw">'userdraw'</a>
14038	schaersvoo	2735	@ implemented obj_types:<ul><li>point \| points </li><li>circle \| circles </li><li>line \| lines </li><li>segment \| segments </li><li>arrow \| arrows <br />use command 'arrowhead int' for size (default value 8 pixels)</li><li>rect \| rects </li><li>closedpoly<br /><b>only one</b> closedpolygon may be drawn.The number of 'corner points' is not preset (e.g. not limited,freestyle)<br />the polygone is closed when clicking on the first point again..(+/- 10px) </li><li>triangle \| triangles</li><li>parallelogram \| parallelograms</li><li>poly[3-9] \| polys[3-9] draw 3...9 point polygone(s): polys3 is of course triangles </li><li>images</li></ul>
11875	schaersvoo	2736	@ additionally objects may be user labelled, using obj_type 'text'...<br />in this case allways a text input field and if <a href='#multiuserinput'> multiuserinput=1 </a> also (x:y) inputfields will be added to the page.<br />use commands 'fontfamily' and 'fontcolor' to adjust. (command 'multistrokeopacity' may be set to adjust text opacity)<br />note: text is always centered on the mouse-click or user-input coordinates !<br />note: no keyboard listeners are used
11806	schaersvoo	2737	@ it makes no sense using something like "multidraw point,points" ... <br />something like "multidraw polys4,polys7" will only result in drawing a '4 point polygone' and not a '7 point polygone' : this is a design flaw and not a feature...
13948	schaersvoo	2738	@ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) <br /> to overrule use command/keyword "status" (no arguments required)
11806	schaersvoo	2739	@ buttons for changing the obj_type (and incase of 'multiuserinput' , some inputfields and buttons) <br />will be present in the reserved div 'tooltip_div' and can be styled using command 'inputstyle some_css'
		2740	@ the button label will be default the 'object primitive name' (like 'point', 'circles').<br />If you want a different label (e.g. an other language) ,use command 'multilabel'<br />for example in dutch: <br /><em>multilabel cirkel,lijnstuk,punten,STOP<br />multidraw circle,segment,points</em><br />(see command <a href='#multilabel'>'multilabel'</a> for more details)
		2741	@ multidraw is incompatible with command 'tooltip' (the reserved div_area is used for the multidraw control buttons)
		2742	@ all 'multidraw' drawings will scale on zooming.<br />this in contrast to the command <a href="#userdraw">'userdraw'</a>.
		2743	@ wims will <b>not</b> check the amount or validity of your command arguments ! <br />( use javascript console to debug any typo's )
14044	schaersvoo	2744	@ a local function read_canvas%d will read all userbased drawings.<br />The output is always a 16 lines string with fixed sequence.<br/>line 1 = points_x+";"+points_y+"\\n"<br/>line 2 = circles_x+";"+circlespoint_y+";"+multi_radius+"\\n"<br/>line 3 = segments_x+";"+segments_y+"\\n"<br/>line 4 = arrows_x+";"+arrows_y+"\\n"<br/>line 5 = lines_x+";"+lines_y+"\\n"<br/>line 6 = triangles_x+";"+triangles_y+"\\n"<br/>line 7 = polys[3-9]_x+";"+polys[3-9]_y+"\\n"<br/>line 8 = rects_x +";"+rects_y+"\\n"<br />line 9 = closedpoly_x+";"+closedpoly_y+"\\n"<br/>line 10 = parallelogram_x+";"+parallelogram_y"\\n"<br/>line 11 = text_x+";"+text_y+";"+text"\\n"<br />line 12 = image_x+";"+image_y+";"+image_idline 13 = curvedarrows_x +";"+ curved_arrows_y +"\\n"<br />line 14 = curvedarrows2_x +";"+ curved_arrows_y +"\\n"<br />line 15 = userdraw_x +";"+userdraw_y + "\\n" note: this is for single 'userdraw object,color' and 'replyformat 29'<br/>line 16 = userdraw_x +";"+userdraw_y +";"+userdraw_radius + "\\n" note: this is for single 'userdraw object,color' and 'replyformat 29'<br/>The x/y-data are in x/y-coordinate system and display precision may be set by a previous command 'precision 0 \| 10 \| 100 \| 1000...'<br />In case of circles the radius is -for the time being- rounded to pixels<br /><b>use the wims "direct exec" tool to see the format of the reply</b>
11806	schaersvoo	2745	@ It is best to prepare / format the student reply in clientside javascript.<br />However in wims language you could use something like this<br />for example you are interested in the polys5 drawings of a pupil (the pupil may draw multiple poly5 objects...)<br />note: the reply for 2 poly5's is: x11,x12,x13,x14,x15,x21,x22,x23,x24,x25 ; y11,y12,y13,y14,y15,y21,y22,y23,y24,y25<br />rep = !line 7 of reply <br />rep = !translate ';' to '\\n' in $rep <br />pts = 5 # 5 points for polygon <br />x_rep = !line 1 of $rep <br />y_rep = !line 2 of $rep <br />tot = !itemcnt $x_rep <br />num_poly = $[$tot/$pts] <br />idx = 0 <br />!for p=1 to $num_poly <br /> !for s=1 to $pts <br />  !increase idx <br />  X = !item $idx of $x_rep <br />  Y = !item $idx of $y_rep <br />  # do some checking <br /> !next s <br />!next p <br />
		2746	@ <b>attention</b>: for command argument 'closedpoly' only one polygone can be drawn.<br />The last point (e.g. the point clicked near the first point) of the array is removed.
11997	schaersvoo	2747	@ <em>technical: all 10 'draw primitives' + 'text' will have their own -transparent- PNG bitmap canvas. <br />So for example there can be a points_canvas entirely separated from a line_canvas.<br />This to avoid the need for a complete redraw when something is drawn to the canvas...(eg only the object_type_canvas is redrawn)<br />This in contrast too many very slow do-it-all HTML5 canvas javascript libraries.<br />The mouselisteners are attached to the canvas-div element.</em>
14053	schaersvoo	2748	@ a special object type is 'images'.<br />if used together with <a href='#imagepalette'>imagepalette</a> a image table will be integrated in the 'control section' of multidraw.(set 'multiuserinput 1' for 'images')<br />if not used with <a href='#imagepalette'>imagepalette</a>, provide the images (<img> tag with bitmap or SVG) somewhere on the html exercise page, with an onclick handler like:<br /><img src='gifs/images/dog.svg' onclick='javascript:place_image_on_canvas(this.id);' id="ext_image_1" /><br /><img src='gifs/fish.png' onclick='javascript:place_image_on_canvas(this.id);' id="another" /><br />etc,etc...when activating the multidraw 'image' button, the images can be selected<br /> (left mouse button/onclick) and placed on the canvas...left mouse click
14054	schaersvoo	2749	@ When you are not content with the default 'multidraw control panel', you can create your own interface, using a few javascript functions to call the drawprimitives, delete things and 'stop drawing' in case you also want to drag&drop stuff...</br>To activate this feature, use <a href='#multilabel'>multilabel NOCONTROLS</a><br />The object types are internally represented by the following numbers (makeing typo's will render your exercise null and void)<br/>point = 0<br />points =1<br />circle = 2<br />circles = 3<br />line = 4<br />lines = 5<br />segment = 6<br />segments = 7<br />arrow = 8<br />arrows = 9<br />triangle = 10<br />triangles = 11<br />closedspoly = 12<br />text = 13<br />rect = 14<br />rects = 15<br />poly[3-9] = 16<br />polys[3-9] = 17<br />parallelogram = 18<br />parallelograms = 19<br />images = 20<br />curvedarrow = 21<br />curvedarrows = 22<br />curvedarrow2 = 23<br />curvedarrows2 = 24<br />controls for example:<br /><input type='button' onclick='javascript:userdraw_primitive=null' value='STOP DRAWING' /><br /><input type='button' onclick='javascript:userdraw_primitive=24;multidraw_click_cnt = 0;' value='start drawing curvedarrows2' /> <br /><input type='button' onclick='javascript:var fun=eval("clear_draw_area"+canvas_scripts[0]);fun(24,0);' value='REMOVE LAST CURVEDARROW ' /> <br/> If using multiple canvas scripts in a single page, loop through the canvas_scripts[n]
12107	schaersvoo	2750	@%multidraw%size 400,400%xrange -10,10%yrange -10,10%multidash 1,0%multilinewidth 1,2%multistrokecolors red,blue%multisnaptogrid 1,1%multilabel LINES,CIRCLES,STOP DRAWING%multidraw lines,circles
14038	schaersvoo	2751	@%multidraw_images%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%drag xy%# use special function to read the drag coordinates%copy 0,0,-1,-1,-1,-1,gifs/images/skull_and_crossbones50.png%fontcolor green%fontfamily Bold 42pt Ariel%imagepalette gifs/ca.gif,gifs/en.gif,gifs/nl.gif,gifs/fr.gif,gifs/cn.gif,gifs/de.gif,gifs/kh.gif,gifs/it.gif%multiuserinput 0,0,1%inputstyle color:blue;%multisnaptogrid 1,1,1%multilinewidth 0,4,0%# attention: use unicode text input without the slash %# \u222D ---> u222D at least will sometimes work%# otherwise cut&past unicode symbols into inputfield...%multilabel TEXT,REACTION ARROW,FLAGS,STOP DRAWING%multidraw text,arrow,images
14044	schaersvoo	2752	@%multidraw_demo%size 800,800%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 1%grid 2,2,grey,2,2,5,grey%inputstyle color:blue;%fontfamily Italic 42pt Ariel%precision 1%opacity 200,50%snaptogrid%linewidth 3%filled%multistrokecolors red,green,blue,orange,yellow,purple,black,cyan,red,green,blue,orange,green,purple,black,cyan%multifillcolors red,green,blue,orange,yellow,purple,black,cyan,red,green,blue,orange,brown,purple%imagepalette gifs/ca.gif,gifs/en.gif,gifs/nl.gif,gifs/fr.gif,gifs/cn.gif,gifs/de.gif,gifs/kh.gif,gifs/it.gif%multidraw closedpoly,segments,rect,parallelogram,triangles,poly5,points,lines,arrows,circles,text,curvedarrows,curvedarrows2,images
11806	schaersvoo	2753	*/
14038	schaersvoo	2754	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
11806	schaersvoo	2755	if( use_userdraw == TRUE ){canvas_error("Only one userdraw primitive may be used in command 'userdraw' use command 'multidraw' for this...");}
		2756	use_userdraw = TRUE;
		2757	/* LET OP max 6 DRAW PRIMITIVES + TEXT */
		2758	temp = get_string(infile,1);
		2759	temp = str_replace(temp,",","\",\"");
14044	schaersvoo	2760	/* if these are not set, set the default values for the 18 (more than enough !) draw_primitives + draw_text */
		2761	/* int use_snap = 0; 0 = none 1=grid : 2=x-grid : 3=y-grid : 4=snap to points */
		2762
11806	schaersvoo	2763	fprintf(js_include_file,"\
14044	schaersvoo	2764	if( typeof(multisnaptogrid) == 'undefined' && multisnaptogrid == null){var multisnaptogrid = ['%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d'];}\
14038	schaersvoo	2765	if( typeof(multistrokecolors) === 'undefined' && multistrokecolors == null ){ var multistrokecolors = ['%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s'];};\
		2766	if( typeof(multifillcolors) === 'undefined' && multifillcolors == null ){ var multifillcolors = ['%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s'];};\
		2767	if( typeof(multistrokeopacity) === 'undefined' && multistrokeopacity == null ){ var multistrokeopacity = ['%.2f','%.2f','%.2f','%.2f','%.2f','%.2f','%2.f','%2.f','%2.f','%.2f','%.2f','%.2f','%.2f','%.2f','%.2f','%2.f','%2.f','%2.f'];};\
		2768	if( typeof(multifillopacity) === 'undefined' && multifillopacity == null ){ var multifillopacity = ['%.2f','%.2f','%.2f','%.2f','%.2f','%.2f','%2.f','%2.f','%2.f','%.2f','%.2f','%.2f','%.2f','%.2f','%.2f','%2.f','%2.f','%2.f'];};\
		2769	if( typeof(multilinewidth) === 'undefined' && multilinewidth == null ){ var multilinewidth = ['%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d'];};\
		2770	if( typeof(multifill) === 'undefined' && multifill == null ){ var multifill = ['%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d'];};\
		2771	if( typeof(multidash) === 'undefined' && multidash == null ){ var multidash = ['%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d','%d'];};\
11806	schaersvoo	2772	if( typeof(multilabel) === 'undefined' && multilabel == null ){ var multilabel = [\"%s\",\"stop drawing\"];};\
14044	schaersvoo	2773	if( typeof(multiuserinput) === 'undefined' && multiuserinput == null ){ var multiuserinput = ['0','0','0','0','0','0','0','0'];};\
11806	schaersvoo	2774	var arrow_head = %d;var multifont_color = '%s';var multifont_family = '%s';",
14044	schaersvoo	2775	use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,use_snap,
14038	schaersvoo	2776	stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,stroke_color,
		2777	fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,fill_color,
		2778	stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,stroke_opacity,
		2779	fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,fill_opacity,
		2780	line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,line_width,
		2781	use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,use_filled,
		2782	use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,use_dashed,
11806	schaersvoo	2783	temp,arrow_head,font_color,font_family);
		2784
		2785	if(strstr(temp,"text") != NULL){
		2786	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		2787	}
		2788
		2789	/* the canvasses range from 1000 ... 1008 */
14038	schaersvoo	2790	add_js_multidraw(js_include_file,canvas_root_id,temp,input_style,use_offset);
11806	schaersvoo	2791	reply_precision = precision;
		2792	if( reply_format == 0){reply_format = 29;}
		2793	reset();/* if command 'filled' / 'dashed' was given...reset all */
		2794	break;
		2795	case MULTILABEL:
		2796	/*
		2797	@ multilabel button_label_1,button_label_2,...,button_label_8,'stop drawing text'
		2798	@ use before command <a href='#multidraw'>'multidraw'</a>
		2799	@ if not set all labels (e.g. the value='' of input type 'button') will be set by the english names for the draw_primitives (like 'point','circle'...)
		2800	@ the 'stop drawing' button text <b>must</b> be the last item on the 'multilabel' -list <br />for example:<br /><em>multilabel punten,lijnen,Stop met Tekenen<br />multidraw points,lines</em>
		2801	@ all buttons can be 'styled' by using commant 'inputstyle'<br /><b>note:</b><em>If you want to add some CSS style to the buttons...<br />the id's of the 'draw buttons' are their english command argument<br />(e.g. id="canvasdraw_points" for the draw points button).<br />the id of the 'stop drawing' button is "canvasdraw_stop_drawing".<br />the id of the "OK" button is"canvasdraw_ok_button"</em>
		2802	@ wims will not check the amount or validity of your input
		2803	@ always use the same sequence as is used for 'multidraw'
14053	schaersvoo	2804	@ if you don't want the controls, and want to write your own interface, set 'multilabel NOCONTROLS'
11806	schaersvoo	2805	*/
		2806	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2807	temp = get_string(infile,1);
		2808	temp = str_replace(temp,",","\",\"");
		2809	fprintf(js_include_file,"var multilabel = [\"%s\"];",temp);
		2810	break;
		2811	case MULTILINEWIDTH:
		2812	/*
		2813	@ multilinewidth linewidth_1,linewidth_2,...,linewidth_8
		2814	@ use before command <a href='#multidraw'>'multidraw'</a>
		2815	@ if not set all line width will be set by a previous command <em>'linewidth int'</em>
		2816	@ use these up to 7 different line widths for the draw primitives used by command <em>'multidraw obj_type_1,obj_type_2...obj_type_7</em>
		2817	@ wims will <b>not</b> check if the number of 0 or 1's matches the amount of draw primitives...
		2818	@ always use the same sequence as is used for 'multidraw'
		2819	*/
		2820	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2821	temp = get_string(infile,1);
		2822	temp = str_replace(temp,",","\",\"");
		2823	fprintf(js_include_file,"var multilinewidth = [\"%s\"];",temp);
		2824	break;
		2825	case MULTIFILL:
		2826	/*
		2827	@ multifill 0,0,1,0,1,0,0
		2828	@ meaning draw objects no. 3 and 5, in the list of command 'multifill', are filled<br />(if the object is fillable...and not a line,segment,arrow or point...)
		2829	@ use before command <a href='#multidraw'>'multidraw'</a>
14032	schaersvoo	2830	@ if not set all objects -except point\|points- will be set 'not filled'...<br />unless a command 'filled' was given before command 'multifill'
11806	schaersvoo	2831	@ only suitable for draw_primitives like 'circle \| circles' , 'triangle \| triangles' and 'polygon'
		2832	@ wims will <b>not</b> check if the number of 0 or 1's matches the amount of draw primitives...
		2833	@ always use the same sequence as is used for 'multidraw'
		2834	*/
		2835	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2836	temp = get_string(infile,1);
		2837	temp = str_replace(temp,",","\",\"");
		2838	fprintf(js_include_file,"var multifill = [\"%s\"];",temp);
		2839	break;
		2840
		2841	case MULTIFILLCOLORS:
		2842	/*
		2843	@ multifillcolors color_name_1,color_name_2,...,color_name_8
		2844	@ use before command <a href='#multidraw'>'multidraw'</a>
		2845	@ if not set all fillcolors (for circle \| triangle \| poly[3-9] \| closedpoly ) will be 'stroke_color' , 'fill_opacity'
		2846	@ use these up to 6 colors for the draw primitives used by command 'multidraw obj_type_1,obj_type_2...obj_type_n
		2847	@ wims will <b>not</b> check if the number of colours matches the amount of draw primitives...
		2848	@ always use the same sequence as is used for 'multidraw'
		2849	@ can also be used with command <a href='#userdraw'>'userdraw clickfill,color'</a> when more than one fillcolor is wanted.<br />in that case use for example <a href='#replyformat'>replyformat 10</a> ... reply=x1:y1:color1,x2:y2:color2...<br />the colors will restart at the first color, when there are more fill-clicks than multi-fill-colors<br />if more control over the used colours is wanted , see command <a href='#colorpalette'>colorpalette color1,color2...</a>
		2850	*/
		2851	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2852	fprintf(js_include_file,"var multifillcolors = [");
		2853	while( ! done ){
		2854	temp = get_color(infile,1);
		2855	fprintf(js_include_file,"\"%s\",",temp);
		2856	}
		2857	fprintf(js_include_file,"\"0,0,0\"];");/* add black to avoid trouble with dangling comma... */
		2858	break;
		2859
		2860	case MULTIFILLOPACITY:
		2861	/*
		2862	@ multifillopacity fill_opacity_1,fill_opacity_2,...,fill_opacity_8
		2863	@ float values 0 - 1 or integer values 0 - 255
		2864	@ use before command <a href='#multidraw'>'multidraw'</a>
		2865	@ if not set all fill opacity_ will be set by previous command <em>'opacity int,int'</em> and keyword <em>'filled'</em>
		2866	@ use these up to 7 different stroke opacities for the draw primitives used by command <em>'multidraw obj_type_1,obj_type_2...obj_type_y</em>
		2867	@ wims will not check the amount or validity of your input
		2868	@ always use the same sequence as is used for 'multidraw'
		2869	*/
		2870	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2871	temp = get_string(infile,1);
		2872	temp = str_replace(temp,",","\",\"");
		2873	fprintf(js_include_file,"var multifillopacity = [\"%s\"];",temp);
		2874	break;
		2875	case MULTISNAPTOGRID:
		2876	/*
		2877	@ multisnaptogrid 0,1,1
14038	schaersvoo	2878	@ alternative : multisnap
11806	schaersvoo	2879	@ meaning draw objects no. 2 (circle) and 3 (segments), in the list of command like <em>'multifill points,circle,segments'</em>, will snap to the xy-grid (default 1 in x/y-coordinate system: see command <a href='#snaptogrid'>'snaptogrid'</a>)
14038	schaersvoo	2880	@ freehand drawing...specify precision for reply: all objects snap to grid<em>multisnaptogrid 1,1,1,...</em>
		2881	@ only the xy-values snap_to_grid: all objects snap to grid <em>multisnaptogrid 1,1,1,...</em>
		2882	@ only the x-values snap_to_grid: all objects snap to x-grid <em>multisnaptogrid 2,2,2,...</em>
		2883	@ only the y-values snap_to_grid: all objects snap to y-grid <em>multisnaptogrid 3,3,3,...</em>
		2884	@ if <a href='#snaptopoints'>snaptopoints</a> is defined: all objects snap to points <em>multisnaptogrid 4,4,4,...</em> <br /><b>make sure to define the points to snap on...</b> use command <a href='#snaptopoints'>snaptopoints</a>
		2885	@ <em>multisnaptogrid 0,1,2,3,4</em><br />multidraw text,arrow,line,circle,image<br />'text' is free hand <br /> 'arrow' is snap to grid<br /> 'line' is snap to x-grid<br /> 'circle' is snap to y-grid<br /> 'image' is snap to points defined by command <a href='#snaptopoints'>snaptopoints</a>
11806	schaersvoo	2886	@ use before command <a href='#multidraw'>'multidraw'</a>
14038	schaersvoo	2887	@ attention: if not set all objects will be set 'no snap'...<br />unless a generic command 'snaptogrid' was given before command 'multidraw'
		2888	@ commands <a href='#xsnaptogrid'>'xsnaptogrid'</a>, <a href='#ysnaptogrid'>'ysnaptogrid'</a>, <a href='#snaptofunction'>'snaptofunction'</a> are <b>not</b> supported amd only functional for <a href='#userdraw'>command userdraw</a>
11806	schaersvoo	2889	@ always use the same sequence as is used for 'multidraw'
		2890	@ wims will <b>not</b> check if the number of 0 or 1's matches the amount of draw primitives...
		2891	*/
		2892	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2893	temp = get_string(infile,1);
14038	schaersvoo	2894	fprintf(js_include_file,"var multisnaptogrid = [%s];",temp);
11806	schaersvoo	2895	reset();/* if command 'dashed' was given...reset to not-dashed */
		2896	break;
		2897	case MULTISTROKECOLORS:
		2898	/*
		2899	@ multistrokecolors color_name_1,color_name_2,...,color_name_8
		2900	@ use before command <a href='#multidraw'>'multidraw'</a>
		2901	@ if not set all colors will be 'stroke_color' , 'stroke_opacity'
		2902	@ use these up to 6 colors for the draw primitives used by command <em>'multidraw obj_type_1,obj_type_2...obj_type_7</em>
		2903	@ wims will <b>not</b> check if the number of colours matches the amount of draw primitives...
		2904	@ always use the same sequence as is used for 'multidraw'
		2905	*/
		2906	if( use_tooltip == 1 ){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2907	fprintf(js_include_file,"var multistrokecolors = [");
		2908	while( ! done ){
		2909	temp = get_color(infile,1);
		2910	fprintf(js_include_file,"\"%s\",",temp);
		2911	}
		2912	fprintf(js_include_file,"\"0,0,0\"];");/* add black to avoid trouble with dangling comma... */
		2913	break;
		2914	case MULTISTROKEOPACITY:
		2915	/*
		2916	@ multistrokeopacity stroke_opacity_1,stroke_opacity_2,...,stroke_opacity_7
		2917	@ float values 0 - 1 or integer values 0 - 255
		2918	@ use before command <a href='#multidraw'>'multidraw'</a>
		2919	@ if not set all stroke opacity_ will be set by previous command <em>'opacity int,int'</em>
		2920	@ use these up to 7 different stroke opacities for the draw primitives used by command <em>'multidraw obj_type_1,obj_type_2...obj_type_7</em>
		2921	@ wims will not check the amount or validity of your input
		2922	@ always use the same sequence as is used for 'multidraw'
		2923	*/
		2924	if( use_tooltip == 1){canvas_error("command 'multidraw' is incompatible with command 'intooltip tip_text'");}
		2925	temp = get_string(infile,1);
		2926	temp = str_replace(temp,",","\",\"");
		2927	fprintf(js_include_file,"var multistrokeopacity = [\"%s\"];",temp);
		2928	break;
		2929
		2930	case MULTIUSERINPUT:
		2931	/*
		2932	@ multiuserinput 0,1,1,0
14038	schaersvoo	2933	@ alternative multiinput
11806	schaersvoo	2934	@ meaning, when the command 'multidraw' is used <br />multidraw circles,points,lines,triangles<br />objects 'points' and 'lines' may additionally be 'drawn' by direct input (inputfields)<br/>all other objects must be drawn with a mouse
		2935	@ in case of circle \| circles a third inputfield for Radius (R) is added.<br />the radius must be in the x/y coordinate system (x-range) and <b>not</b> in pixels...students don't think in pixels.<br />note: R-values will not snap-to-grid
		2936	@ in case of line(s) \| segment(s) \| arrow(s) the user should write <b>x1:y1</b> in the first inputfield and <b/>x2:y2</b> in the second.<br />These 'hints' are pre-filled into the input field.<br />other coordinate delimiters are ";" and "," e.g. <b>x1;y1</b> or <b>x1,y1</b>.<br />An error message (alert box) will popup when things are not correctly...
		2937	@ in case of a triangle \| poly3, three inputfields are provided.
		2938	@ in case of 'text' and multiuserinput=1 , 3 inputfields will be shown : x,y,text
		2939	@ in case of 'text' and multiuserinput=0 , 1 inputfield will be shown : text ... a mouse click will place the text on the canvas.
		2940	@ may be styled using command <a href="#inputstyle">"inputstyle"</a>
		2941	@ an additional button 'stop drawing' may be used to combine userbased drawings with 'drag&drop' or 'onclick' elements
		2942	@ when exercise if finished (status=done) the buttons will not be shown.<br />To override this default behaviour use command / keyword 'status'
		2943	@ use before command <a href='#multidraw'>'multidraw'</a>
		2944	@ always use the same sequence as is used for 'multidraw'
		2945	*/
		2946	/* simple rawmath and input check */
		2947	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		2948	temp = get_string(infile,1);
		2949	temp = str_replace(temp,",","\",\"");
		2950	fprintf(js_include_file,"var multiuserinput = [\"%s\"];",temp);
		2951	break;
		2952
		2953	case NOXAXIS:
		2954	/*
13829	bpr	2955	@ noaxis
11806	schaersvoo	2956	@ keyword
		2957	@ if set, the automatic x-axis numbering will be ignored
13936	bpr	2958	@ use command <a href="#axis">axis</a> to have a visual x/y-axis lines (see command <a href="#grid">grid</a>
11806	schaersvoo	2959	@ to be used before command grid (see <a href="#grid">command grid</a>)
		2960	*/
11891	schaersvoo	2961	fprintf(js_include_file,"x_strings = {};x_strings_up = [];\n");
		2962	use_axis_numbering = -1;
11806	schaersvoo	2963	break;
		2964	case NOYAXIS:
		2965	/*
13829	bpr	2966	@ noayis
11806	schaersvoo	2967	@ keyword
		2968	@ if set, the automatic y-axis numbering will be ignored
13936	bpr	2969	@ use command <a href="#axis">axis</a> to have a visual x/y-axis lines (see command <a href="#grid">grid</a>
11806	schaersvoo	2970	@ to be used before command grid (see <a href="#grid">command grid</a>)
		2971	*/
11891	schaersvoo	2972	fprintf(js_include_file,"y_strings = {};\n");
11806	schaersvoo	2973	break;
11890	schaersvoo	2974	case NUMBERLINE:
		2975	/*
		2976	@ numberline x0,x1,xmajor,xminor,y0,y1
		2977	@ numberline is using xrange/yrange system for all dimensions
11996	schaersvoo	2978	@ multiple numberlines are allowed ; combinations with command <a href='#grid'>grid</a> is allowed; multiple commands <a href='#xaxis'>xaxis numbering</a> are allowed
11890	schaersvoo	2979	@ x0 is start x-value in xrange
		2980	@ x1 is end x-value in xrange
		2981	@ xmajor is step for major division
		2982	@ xminor is divisor of xmajor; using small (30% of major tick) tick marks: this behaviour is 'hardcoded'
		2983	@ is xminor is an even divisor, an extra tickmark (60% of major tick) is added to the numberline : this behaviour is 'hardcoded'
		2984	@ y0 is bottom of numberline; y1 endpoint of major tics
13829	bpr	2985	@ use command <a href="#linewidth">linewidth</a> to control appearance
11890	schaersvoo	2986	@ use <a href="#strokecolor">strokecolor</a> and <a href="#opacity">opacity</a> to controle measure line
		2987	@ for all ticks linewidth and color / opacity are identical.
		2988	@ if command <a href="#xaxis">xaxis</a> or <a href="#xaxisup">xaxisup</a> is not defined, the labeling will be on major ticks: x0...x1
13829	bpr	2989	@ use <a href="#fontfamily">fontfamily</a> and <a href="#fontcolor">fontcolor</a> to control fonts settings
11890	schaersvoo	2990	@ may be used together with <a href="#userdraw">userdraw</a> , <a href="#multidraw">multidraw</a> and <a href="#drag">user drag</a> command family for the extra object drawn onto the numberline
		2991	@ <a href="#snaptogrid">snaptogrid, snaptopoints etc</a> and <a href="#zoom">zooming and panning</a> is supported
		2992	@ onclick and dragging of the numberline are not -yet- supported
11997	schaersvoo	2993	@ note: incase of multiple numberlines, make sure the numberline without special x-axis numbering (e.g. ranging from xmin to xmax) comes first !
13829	bpr	2994	@%numberline%size 400,400%xrange -10,10%yrange -10,10%precision 1%strokecolor black%numberline -8,8,1,6,-4,-3.5%strokecolor red%xaxis -4:AA:-2:BB:2:CC:4:DD%numberline -8,8,1,2,4,4.5%strokecolor green%xaxisup -4:AAA:-2:BBB:2:CCC:4:DDD%numberline -8,8,1,3,2,2.5%strokecolor blue%xaxis -4:AAAA:-2:BBBB:2:CCCC:4:DDDD%numberline -8,8,1,4,0,0.5%strokecolor brown%xaxis -4:AAAAA:-2:BBBBB:2:CCCCC:4:DDDDD%numberline -8,8,1,5,-2,-1.5%zoom red
11890	schaersvoo	2995	*/
		2996	if( js_function[DRAW_NUMBERLINE] != 1 ){ js_function[DRAW_NUMBERLINE] = 1;}
		2997	for(i=0;i<6;i++){
		2998	switch(i){
		2999	case 0: double_data[0] = get_real(infile,0);break;/* xmin */
		3000	case 1: double_data[1] = get_real(infile,0);break;/* xmax */
		3001	case 2: double_data[2] = get_real(infile,0);break;/* xmajor */
		3002	case 3: double_data[3] = get_real(infile,0);break;/* xminor */
		3003	case 4: double_data[4] = get_real(infile,0);break;/* ymin */
		3004	case 5: double_data[5] = get_real(infile,1);/* ymax */
		3005	/*
		3006	var draw_numberline%d = function(canvas_type,xmin,xmax,xmajor,xminor,ymin,ymax,linewidth,strokecolor,strokeopacity,fontfamily,fontcolor);
		3007	*/
		3008	fprintf(js_include_file,"snap_x = %f;snap_y = %f;",double_data[2] / double_data[3],double_data[5] - double_data[4] );
11996	schaersvoo	3009	string_length = snprintf(NULL,0,"\ndraw_numberline(%d,%d,%f,%f,%f,%f,%f,%f,%d,\"%s\",%f,\"%s\",\"%s\",%d); ",NUMBERLINE_CANVAS+numberline_cnt,use_axis_numbering,double_data[0],double_data[1],double_data[2],double_data[3],double_data[4],double_data[5],line_width,stroke_color,stroke_opacity,font_family,font_color,precision);
11890	schaersvoo	3010	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11996	schaersvoo	3011	snprintf(tmp_buffer,string_length,"\ndraw_numberline(%d,%d,%f,%f,%f,%f,%f,%f,%d,\"%s\",%f,\"%s\",\"%s\",%d); ",NUMBERLINE_CANVAS+numberline_cnt,use_axis_numbering,double_data[0],double_data[1],double_data[2],double_data[3],double_data[4],double_data[5],line_width,stroke_color,stroke_opacity,font_family,font_color,precision);
11890	schaersvoo	3012	add_to_buffer(tmp_buffer);
		3013	numberline_cnt++;
		3014	break;
		3015	default:break;
		3016	}
		3017	}
		3018	reset();
		3019	break;
		3020
		3021	break;
11806	schaersvoo	3022	case OPACITY:
		3023	/*
13951	schaersvoo	3024	@ opacity [0-255],[0-255]
		3025	@ opacity [0.0 - 1.0],[0.0 - 1.0]
11806	schaersvoo	3026	@ alternative : transparent
		3027	@ first item is stroke opacity, second is fill opacity
13951	schaersvoo	3028	@%opacity%size 400,400%xrange -10,10%yrange -10,10%opacity 255,0%fcircle -10,0,100,blue%opacity 250,50%fcircle -5,0,100,blue%opacity 200,100%fcircle 0,0,100,blue%opacity 150,150%fcircle 5,0,100,blue%opacity 100,200%fcircle 10,0,100,blue
11806	schaersvoo	3029	*/
		3030	for(i = 0 ; i<2;i++){
		3031	switch(i){
		3032	case 0: double_data[0]= get_real(infile,0);break;
		3033	case 1: double_data[1]= get_real(infile,1);break;
		3034	default: break;
		3035	}
		3036	}
13951	schaersvoo	3037	if( double_data[0] > 255 \|\| double_data[1] > 255 \|\| double_data[0] < 0 \|\| double_data[1] < 0 ){ canvas_error("opacity [0 - 255] , [0 - 255] ");}/* typo or non-RGB ? */
11997	schaersvoo	3038	if( double_data[0] > 1 ){ stroke_opacity = (double) (0.0039215double_data[0]); }else{ stroke_opacity = 0.0;} / 0.0 - 1.0 */
		3039	if( double_data[1] > 1 ){ fill_opacity = (double) (0.0039215double_data[1]); }else{ fill_opacity = 0.0;} / 0.0 - 1.0 */
11806	schaersvoo	3040	break;
		3041
		3042	case ONCLICK:
		3043	/*
		3044	@ onclick
		3045	@ keyword (no arguments required)
		3046	@ if the next object is clicked, its 'object onclick_or_drag sequence number' in fly script is returned <br /> by javascript:read_canvas();
		3047	@ onclick seqeuence numbering starts at '0'.<br />e.g. if there are 6 objects set onclick, the first onclick object will have id-number '0', the last id-number '5'
		3048	@ line based objects will show an increase in line width<br />font based objects will show the text in 'bold' when clicked.
		3049	@ the click zone (accuracy) is determined by 2× the line width of the object
		3050	@ onclick and <a href="#drag">drag x\|y\|xy</a> may be combined in a single flyscript <br />(although a single object can <b>not</b> be onclick and draggable at the same time...)
		3051	@ note: not all objects may be set onclick
12107	schaersvoo	3052	@%onclick%size 400,400%xrange -10,10%yrange -10,10%opacity 255,60%linewidth 3%onclick%fcircles blue,-3,3,1,1,2,2,3,1,1%onclick%ftriangles red,-4,-4,-4,0,-3,-2,0,0,4,0,2,-4%onclick%frects green,-4,4,-2,2,1,-1,3,-4
11806	schaersvoo	3053	*/
		3054	fprintf(js_include_file,"use_dragdrop_reply = true;");
		3055	onclick = 1;
		3056
		3057	break;
		3058
		3059	case PARALLEL:
		3060	/*
		3061	@ parallel x1,y1,x2,y2,dx,dy,n,[colorname or #hexcolor]
		3062	@ can <b>not</b> be set "onclick" or "drag xy"
12107	schaersvoo	3063	@%parallel%size 400,400%xrange -10,10%yrange -10,10%parallel -5,5,-4,-5,0.25,0,40,red
11806	schaersvoo	3064	*/
		3065	for( i = 0;i < 8; i++ ){
		3066	switch(i){
14032	schaersvoo	3067	case 0: double_data[0] = get_real(infile,0);break; /* x1-values -> x-pixels*/
		3068	case 1: double_data[1] = get_real(infile,0);break; /* y1-values -> y-pixels*/
		3069	case 2: double_data[2] = get_real(infile,0);break; /* x2-values -> x-pixels*/
		3070	case 3: double_data[3] = get_real(infile,0);break; /* y2-values -> y-pixels*/
11806	schaersvoo	3071	case 4: double_data[4] = xmin + get_real(infile,0);break; /* xv -> x-pixels */
		3072	case 5: double_data[5] = ymax + get_real(infile,0);break; /* yv -> y-pixels */
14032	schaersvoo	3073	case 6: int_data[0] = (int) (get_real(infile,0));break; /* n */
11806	schaersvoo	3074	case 7: stroke_color=get_color(infile,1);/* name or hex color */
		3075	decimals = find_number_of_digits(precision);
14045	schaersvoo	3076	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,11,[%.f,%.f,%.f],[%.f,%.f,%.f],[%d,%d,%d],[%d,%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[4],decimals,double_data[1],decimals,double_data[3],decimals,double_data[5],int_data[0],int_data[0],int_data[0],int_data[0],int_data[0],int_data[0],line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	3077	if(onclick > 0){click_cnt++;}
		3078	/* click_cnt++*/;
		3079	reset();
		3080	break;
		3081	default: break;
		3082	}
		3083	}
		3084	break;
		3085
		3086
		3087	case PLOTSTEPS:
		3088	/*
		3089	@ plotsteps a_number
		3090	@ default 150
14032	schaersvoo	3091	@ only used for commands <a href="#curve">"curve / plot"</a> and <a href="#levelcurve">"levelcurve"</a>
11806	schaersvoo	3092	@ use with care !
		3093	*/
		3094	plot_steps = (int) (get_real(infile,1));
		3095	break;
13829	bpr	3096
11806	schaersvoo	3097	case POINT:
		3098	/*
		3099	@ point x,y,color
		3100	@ draw a single point at (x;y) in color 'color'
14038	schaersvoo	3101	@ use command 'linewidth int' to adust size
11806	schaersvoo	3102	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
		3103	@ will not resize on zooming <br />(command 'circle x,y,r,color' will resize on zooming)
		3104	@ attention: in case of command <a href="#rotate">'rotate angle'</a> a point has rotation center (0:0) in x/y-range
12107	schaersvoo	3105	@%point%size 400,400%xrange -10,10%yrange -10,10%opacity 255,255%linewidth 1%onclick%point 0,0,red%linewidth 2%onclick%point 1,1,blue%linewidth 3%onclick%point 3,3,green%linewidth 4%point 4,4,orange
11806	schaersvoo	3106	*/
		3107	for(i=0;i<3;i++){
		3108	switch(i){
		3109	case 0: double_data[0] = get_real(infile,0);break; /* x */
		3110	case 1: double_data[1] = get_real(infile,0);break; /* y */
		3111	case 2: stroke_color = get_color(infile,1);/* name or hex color */
		3112	decimals = find_number_of_digits(precision);
14045	schaersvoo	3113	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,2,[%.f],[%.f],[%.2f],[%d],%.2f,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[1],1.5line_width,line_width,1.5line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	3114	/* click_cnt++; */
		3115	if(onclick > 0){click_cnt++;}
		3116	break;
		3117	default: break;
		3118	}
		3119	}
		3120	reset();
		3121	break;
		3122
		3123	case POINTS:
		3124	/*
		3125	@ points color,x1,y1,x2,y2,...,x_n,y_n
		3126	@ draw multiple points at given coordinates in color 'color'
14032	schaersvoo	3127	@ use command 'linewidth int' to adust size
11806	schaersvoo	3128	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
		3129	@ attention: in case of command <a href="#rotate">'rotate angle'</a> the points have rotation center (0:0) in x/y-range
12107	schaersvoo	3130	@%points_1%size 400,400%xrange -10,10%yrange -10,10%opacity 255,255%snaptogrid%linewidth 1%drag xy%points red,0,0,1,1,2,2,3,3%drag x%points blue,0,1,1,2,2,3,3,4
		3131	@%points_2%size 400,400%xrange -10,10%yrange -10,10%opacity 255,255%linewidth 1%onclick%points red,0,0,1,1,2,2,3,3%onclick%points blue,0,1,1,2,2,3,3,4
11806	schaersvoo	3132	*/
8363	schaersvoo	3133	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		3134	fill_color = stroke_color;
		3135	i=0;
		3136	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	3137	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
8363	schaersvoo	3138	if(i%2 == 0 ){
		3139	double_data[i] = get_real(infile,0); /* x */
		3140	}
		3141	else
		3142	{
		3143	double_data[i] = get_real(infile,1); /* y */
		3144	}
		3145	i++;
		3146	}
		3147	decimals = find_number_of_digits(precision);
11806	schaersvoo	3148	for(c = 0 ; c < i-1 ; c = c+2){
14045	schaersvoo	3149	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,2,[%.f],[%.f],[%.2f],[%d],%.2f,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+1],1.5line_width,line_width,1.5line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8379	schaersvoo	3150	/* click_cnt++; */
11806	schaersvoo	3151	if(onclick > 0){click_cnt++;}
8363	schaersvoo	3152	}
		3153	reset();
		3154	break;
11806	schaersvoo	3155
		3156	case POLY:
		3157	/*
		3158	@ poly color,x1,y1,x2,y2...x_n,y_n
		3159	@ polygon color,x1,y1,x2,y2...x_n,y_n
		3160	@ draw closed polygon
		3161	@ use command 'fpoly' to fill it or use keyword <a href='#filled'>'filled'</a>
		3162	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12107	schaersvoo	3163	@%polygon_1%size 400,400%xrange -10,10%yrange -10,10%opacity 255,25%fillcolor orange%filled%linewidth 2%drag xy%snaptogrid%poly blue,0,0,1,3,3,1,2,4,-1,3
		3164	@%polygon_2%size 400,400%xrange -10,10%yrange -10,10%opacity 255,25%fillcolor orange%filled%linewidth 1%onclick%poly green,0,0,1,3,3,1,2,4,-1,3
11806	schaersvoo	3165	*/
		3166	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		3167	i=0;
		3168	c=0;
		3169	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	3170	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
11806	schaersvoo	3171	for( c = 0 ; c < 2; c++){
		3172	if(c == 0 ){
		3173	double_data[i] = get_real(infile,0);
		3174	i++;
		3175	}
		3176	else
		3177	{
		3178	double_data[i] = get_real(infile,1);
		3179	i++;
		3180	}
		3181	}
		3182	}
14032	schaersvoo	3183	/* draw path : closed & optional filled */
11806	schaersvoo	3184	decimals = find_number_of_digits(precision);
14045	schaersvoo	3185	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,5,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,double_xy2js_array(double_data,i,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	3186	if(onclick > 0){click_cnt++;}
		3187	/* click_cnt++; */
		3188	reset();
		3189	break;
		3190
7614	schaersvoo	3191	case POLYLINE:
		3192	/*
		3193	@ polyline color,x1,y1,x2,y2...x_n,y_n
10975	schaersvoo	3194	@ brokenline color,x1,y1,x2,y2...x_n,y_n
		3195	@ path color,x1,y1,x2,y2...x_n,y_n
		3196	@ remark: there is <b>no</b> command polylines \| brokenlines \| paths ... just use multiple commands "polyline ,x1,y1,x2,y2...x_n,y_n"
		3197	@ remark: there are commands "userdraw path(s),color" and "userdraw polyline,color"... these are two entirely different things !<br />the path(s) userdraw commands may be used for freehand drawing(s)<br />the polyline userdraw command is analogue to this polyline\|brokenline command
		3198	@ the command interconnects the points in the given order with a line (canvasdraw will not close the drawing: use command <a href="#poly">polygon</a> for this)
		3199	@ use command <a href='#segments'>'segments'</a> for a series of segments.<br />these may be clicked/dragged individually
9406	schaersvoo	3200	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12107	schaersvoo	3201	@%polyline_1%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%drag xy%snaptogrid%polyline blue,0,0,1,3,3,1,2,4,-1,3
		3202	@%polyline_2%size 400,400%xrange -10,10%yrange -10,10%linewidth 1%onclick%polyline green,0,0,1,3,3,1,2,4,-1,3
7614	schaersvoo	3203	*/
13829	bpr	3204
7614	schaersvoo	3205	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		3206	i=0;
		3207	c=0;
		3208	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	3209	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
7614	schaersvoo	3210	for( c = 0 ; c < 2; c++){
		3211	if(c == 0 ){
		3212	double_data[i] = get_real(infile,0);
		3213	i++;
		3214	}
		3215	else
		3216	{
		3217	double_data[i] = get_real(infile,1);
		3218	i++;
		3219	}
		3220	}
		3221	}
		3222	/* draw path : not closed & not filled */
		3223	decimals = find_number_of_digits(precision);
14045	schaersvoo	3224	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,4,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,double_xy2js_array(double_data,i,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8379	schaersvoo	3225	if(onclick > 0){click_cnt++;}
		3226	/* click_cnt++;*/
		3227	reset();
7614	schaersvoo	3228	break;
11806	schaersvoo	3229
		3230	case POPUP:
		3231	/*
		3232	@ popup
		3233	@ keyword (no arguments)
		3234	@ if fly-script starts with keyword 'popup', the canvas image will be exclusively in a popup window (xsize px × ysize px)
		3235	@ if keyword 'popup' is used after command 'size xsize,ysize' the canvas will also be displayed in a popup window with size 'xsize × ysize'
		3236	@ the popup window will be embedded into the page as a 'normal' image , when 'status=done' ; override with keyword <a href="#status"> 'nostatus'</a>
14032	schaersvoo	3237	@ to access the read_canvas and read_dragdrop functions in a popup window, use:<br /><em><br /> function read_all(){<br /> if( typeof popup !== 'undefined' ){<br /> var fun1 = popup['read_dragdrop'+canvas_scripts[0]];<br /> var fun2 = popup['read_canvas'+canvas_scripts[0]];<br /> popup.close();<br /> return "dragdrop="+fun1()+"\\ncanvas="+fun2();<br /> };<br /></em>
11806	schaersvoo	3238	@ to set a canvasdraw produced <a href="#clock">clock</a> or multiple clocks...use something like:<br /><em>popup.set_clock(clock_id,type,diff);</em><br />as js-function for a button (or something else) in your document page.<br />wherein <b>clock_id</b> starts with 0 for the first clock<br /><b>type</b> is 1 for Hours,2 for Minutes and 3 for Seconds<br /><b>diff</b> is the increment (positive or negative) per click
12107	schaersvoo	3239	@%popup%popup%size 400,400%xrange -2pi,2pi%yrange -5,5%precision 0%axis%axisnumbering%opacity 100,190%grid 1,1,grey,2,2,5,black%linewidth 4%fillcolor blue%trange -pi,pi%animate%linewidth 1%precision 1000%jsplot red,4cos(2x),2sin(3x-pi/6)%strokecolor green%functionlabel f(x)=%userinput function
11806	schaersvoo	3240	*/
		3241	use_tooltip = 2;
		3242	break;
		3243
		3244	case PROTRACTOR:
7614	schaersvoo	3245	/*
11806	schaersvoo	3246	@ protractor x,y,x_width,type,mode,use_a_scale
		3247	@ x,y are the initial location
		3248	@ x_width : give the width in x-coordinate system (e.g. not in pixels !)
14032	schaersvoo	3249	@ type = 1 : a triangle range 0 - 180<br />type = 2 : a circle shape 0 - 360
11806	schaersvoo	3250	@ mode : use -1 to set the protractor interactive (mouse movement of protractor)<br />use mode = '0° - 360°' to set the protractor with a static angle of some value
		3251	@ if the value of the user_rotation angle is to be shown...use command <a href='#display'>display degree,color,fontsize</a><a href='#display'>display radian,color,fontsize</a>
		3252	@ use_scale = 1 : the protractor will have some scale values printed; use_scale=0 to disable
		3253	@ the rotating direction of the mouse around the protractor determines the clockwise/ counter clockwise rotation of the protractor...
		3254	@ commands <em>stroke_color \| fill_color \| linewidth \| opacity \| font_family</em> will determine the looks of the protractor.
		3255	@ default replyformat: reply[0] = x;reply[1] = y;reply[2] = angle_in_radians<br />use command 'precision' to set the reply precision.
		3256	@ if combined with a ruler, use replyformat = 32
		3257	@ command <em>snap_to_grid</em> may be used to assist the pupil at placing the protractor
14032	schaersvoo	3258	@ when using command 'zoom' , pay <b>attention</b> to the size and symmetry of your canvas<br />...to avoid a partial image, locate the start position near the center of the visual canvas<br /><em>technical:<br /> the actual 'protractor' is just a static generated image in a new canvas-memory<br />This image is only generated once, and a copy of its bitmap is translated & rotated onto the visible canvas.<br />That is the reason for the 'high-speed dragging and rotating'.<br />I've limited its size to xsize × ysize e.g. the same size as the visual canvas... </em>
11806	schaersvoo	3259	@ only one protractor allowed (for the time being)
		3260	@ usage: first left click on the protractor will activate dragging;<br />a second left click will activate rotating (just move mouse around)<br />a third click will freeze this position and the x/y-coordinate and angle in radians will be stored in reply(3)<br />a next click will restart this sequence...
12107	schaersvoo	3261	@%protractor%size 400,400%xrange -5,10%yrange -5,10%hline 0,0,black%vline 0,0,black%fillcolor orange%opacity 255,40%protractor 2,-2,6,0,-1,1,1
7614	schaersvoo	3262	*/
11806	schaersvoo	3263	for( i = 0;i < 6; i++ ){
		3264	switch(i){
		3265	case 0: double_data[0] = get_real(infile,0);break; /* x-center */
		3266	case 1: double_data[1] = get_real(infile,0);break; /* y-center */
		3267	case 2: double_data[2] = get_real(infile,0);break; /* x-width */
		3268	case 3: int_data[0] = (int)(get_real(infile,0));break; /* type: 1==triangle 2 == circle */
		3269	case 4: int_data[1] = (int)(get_real(infile,0));break; /* passive mode == 0; active mode == -1 */
		3270	case 5: int_data[2] = (int)(get_real(infile,1)); /* use scale */
		3271	decimals = find_number_of_digits(precision);
11821	schaersvoo	3272	if( int_data[1] < 0 ){ js_function[JS_FIND_ANGLE] = 1;}
14057	schaersvoo	3273	add_js_protractor(js_include_file,canvas_root_id,int_data[0],double_data[0],double_data[1],double_data[2],font_family,stroke_color,stroke_opacity,fill_color,fill_opacity,line_width,int_data[2],int_data[1],use_snap);
11806	schaersvoo	3274
		3275	string_length = snprintf(NULL,0,";protractor%d(); ",canvas_root_id);
		3276	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3277	snprintf(tmp_buffer,string_length,";protractor%d(); ",canvas_root_id);
		3278	add_to_buffer(tmp_buffer);
		3279	reply_precision = precision;
		3280	/* no reply from protractor if non-interactive */
		3281	if( reply_format == 0 && int_data[1] == -1 ){reply_format = 30;}
		3282	break;
		3283	default: break;
		3284	}
		3285	}
		3286	break;
		3287
		3288	case PIXELS:
		3289	/*
		3290	@ pixels color,x1,y1,x2,y2,x3,y3...
		3291	@ draw rectangular "points" with diameter 1 pixel
		3292	@ pixels can <b>not</b> be dragged or clicked
		3293	@ "pixelsize = 1" may be changed by command "pixelsize int"
12111	schaersvoo	3294	@%pixels%size 400,400%opacity 255,255%pixelsize 5%pixels red,1,1,2,2,3,3,4,4,5,5,10,10,20,20,30,30,40,40,50,50,60,60,70,70,80,80,90,90,100,100,120,120,140,140,160,160,180,180,200,200,240,240,280,280,320,320,360,360,400,400%#NOTE pixelsize=5...otherwise you will not see them clearly...
11806	schaersvoo	3295	*/
		3296	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		3297	stroke_color=get_color(infile,0);
7614	schaersvoo	3298	i=0;
		3299	c=0;
		3300	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	3301	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
7614	schaersvoo	3302	for( c = 0 ; c < 2; c++){
		3303	if(c == 0 ){
		3304	double_data[i] = get_real(infile,0);
		3305	i++;
		3306	}
		3307	else
		3308	{
		3309	double_data[i] = get_real(infile,1);
		3310	i++;
		3311	}
		3312	}
		3313	}
11806	schaersvoo	3314	decimals = find_number_of_digits(precision);
		3315	/* double_xy2js_array(double xy[],int len,int decimals) /
		3316	string_length = snprintf(NULL,0, "draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		3317	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3318	snprintf(tmp_buffer,string_length,"draw_setpixel(%s,\"%s\",%.2f,%d);\n",double_xy2js_array(double_data,i,decimals),stroke_color,stroke_opacity,pixelsize);
		3319	add_to_buffer(tmp_buffer);
		3320	reset();
7614	schaersvoo	3321	break;
11806	schaersvoo	3322
		3323	case PIXELSIZE:
7614	schaersvoo	3324	/*
11806	schaersvoo	3325	@ pixelsize int
		3326	@ in case you want to deviate from default pixelsize = 1(...)
12111	schaersvoo	3327	@ pixelsize 100 is of course a filled rectangle 100px × 100px
7614	schaersvoo	3328	*/
11806	schaersvoo	3329	pixelsize = (int) get_real(infile,1);
		3330	break;
8105	schaersvoo	3331
11806	schaersvoo	3332	case PIECHART:
7614	schaersvoo	3333	/*
11806	schaersvoo	3334	@ piechart xc,yc,radius,'data+colorlist'
		3335	@ (xc : yc) center of circle diagram in xrange/yrange
		3336	@ radius in pixels
		3337	@ data+color list: a colon separated list of raw data and corresponding colours<br />canvasdraw will not check validity of colornames...<br />in case of trouble look into javascript debugging of your browser
11875	schaersvoo	3338	@ example data+colorlist : 32:red:65:green:23:black:43:orange:43:yellow:14:white
11806	schaersvoo	3339	@ the number of colors must match the number of data.
11875	schaersvoo	3340	@ if defined <a href='#fillpattern'>'fillpattern some_pattern'</a> then the pie pieces will be filled with the respective color and a fill pattern...<br />the pattern is cycled from the 4 pattern primitives: grid,hatch,diamond,dot,grid,hatch,diamond,dot,...
11806	schaersvoo	3341	@ use command "<a href='#opacity'>'opacity'</a> to adjust fill_opacity of colours
		3342	@ use command <a href='#legend'>'legend'</a> to automatically create a legend <br />using the same colours as pie segments<br />unicode allowed in legend<br />expect javascript trouble if the amount of 'pie-slices', 'pie-colours' 'pie-legend-titles' do not match<br />a javascript console is your best friend...<br />use command 'fontfamily' to set the font of the legend.
13829	bpr	3343	@ use command <a href='centered'>'centered'</a> to place <a href='#legend'>'legend'</a> text inside the piechart. The text is using the same color as the pie segment: use (fill) opacity to enhance visibility.
12538	schaersvoo	3344	@%piechart_1%size 300,200%xrange -10,10%yrange -10,10%legend cars:motorcycles:bicycles:trikes%opacity 255,120%piechart -5,0,75,22:red:8:blue:63:green:7:purple%
		3345	@%piechart_2%size 200,200%xrange -10,10%yrange -10,10%fontfamily 16px Ariel%centered%legend cars:motorcycles:bicycles:trikes%opacity 255,60%piechart 0,0,100,22:red:8:blue:63:green:7:purple
7614	schaersvoo	3346	*/
11806	schaersvoo	3347	if( js_function[DRAW_PIECHART] != 1 ){ js_function[DRAW_PIECHART] = 1;}
7614	schaersvoo	3348	for(i=0;i<5;i++){
		3349	switch(i){
11806	schaersvoo	3350	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x */
14032	schaersvoo	3351	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y */
11806	schaersvoo	3352	case 2: int_data[2] = (int)(get_real(infile,1));break;/* radius*/
		3353	case 3: temp = get_string(infile,1);
		3354	if( strstr( temp, ":" ) != 0 ){ temp = str_replace(temp,":","\",\"");}
12538	schaersvoo	3355	string_length = snprintf(NULL,0,"draw_piechart(%d,%d,%d,%d,[\"%s\"],%.2f,%d,\"%s\",%d,%d);\n",PIECHART,int_data[0],int_data[1],int_data[2],temp,fill_opacity,legend_cnt,font_family,use_filled,use_offset);
11806	schaersvoo	3356	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
12538	schaersvoo	3357	snprintf(tmp_buffer,string_length,"draw_piechart(%d,%d,%d,%d,[\"%s\"],%.2f,%d,\"%s\",%d,%d);\n",PIECHART,int_data[0],int_data[1],int_data[2],temp,fill_opacity,legend_cnt,font_family,use_filled,use_offset);
11806	schaersvoo	3358	add_to_buffer(tmp_buffer);
		3359	break;
		3360	default:break;
7614	schaersvoo	3361	}
		3362	}
11806	schaersvoo	3363	reset();
7614	schaersvoo	3364	break;
8304	schaersvoo	3365
7614	schaersvoo	3366	case RAYS:
		3367	/*
		3368	@ rays color,xc,yc,x1,y1,x2,y2,x3,y3...x_n,y_n
		3369	@ draw rays in color 'color' and center (xc:yc)
7786	schaersvoo	3370	@ may be set draggable or onclick (every individual ray)
12111	schaersvoo	3371	@%rays_onclick%size 400,400%xrange -10,10%yrange -10,10%onclick%rays blue,0,0,3,9,-3,5,-4,0,4,-9,7,9,-8,1,-1,-9
		3372	@%rays_drag_xy%size 400,400%xrange -10,10%yrange -10,10%drag xy%rays blue,0,0,3,9,-3,5,-4,0,4,-9,7,9,-8,1,-1,-9
7614	schaersvoo	3373	*/
		3374	stroke_color=get_color(infile,0);
7786	schaersvoo	3375	fill_color = stroke_color;
		3376	double_data[0] = get_real(infile,0);/* xc */
		3377	double_data[1] = get_real(infile,0);/* yc */
		3378	i=2;
		3379	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	3380	if(i > MAX_INT - 1){canvas_error("in command rays too many points / rays in argument: repeat command multiple times to fit");}
7786	schaersvoo	3381	if(i%2 == 0 ){
		3382	double_data[i] = get_real(infile,0); /* x */
7614	schaersvoo	3383	}
7786	schaersvoo	3384	else
		3385	{
		3386	double_data[i] = get_real(infile,1); /* y */
7614	schaersvoo	3387	}
7786	schaersvoo	3388	fprintf(js_include_file,"/* double_data[%d] = %f */\n",i,double_data[i]);
		3389	i++;
7614	schaersvoo	3390	}
8224	bpr	3391
		3392	if( i%2 != 0 ){canvas_error("in command rays: unpaired x or y value");}
		3393	decimals = find_number_of_digits(precision);
7786	schaersvoo	3394	for(c=2; c<i;c = c+2){
14045	schaersvoo	3395	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[c],decimals,double_data[1],decimals,double_data[c+1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8379	schaersvoo	3396	/* click_cnt++; */
		3397	if(onclick > 0){click_cnt++;}
7614	schaersvoo	3398	}
		3399	reset();
		3400	break;
8304	schaersvoo	3401
11806	schaersvoo	3402	case RECT:
8386	schaersvoo	3403	/*
11806	schaersvoo	3404	@ rect x1,y1,x2,y2,color
		3405	@ use command 'frect x1,y1,x2,y2,color' for a filled rectangle
14038	schaersvoo	3406	@ use command/keyword <a href='#filled'>'filled'</a> before command 'rect x1,y1,x2,y2,color'
9406	schaersvoo	3407	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12111	schaersvoo	3408	@%rect%size 400,400%xrange -10,10%yrange -10,10%rect 0,0,4,-4,green%rect 0,5,4,1,red
8386	schaersvoo	3409	*/
11806	schaersvoo	3410	for(i=0;i<5;i++){
		3411	switch(i){
		3412	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		3413	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		3414	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		3415	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		3416	case 4:stroke_color = get_color(infile,1);/* name or hex color */
8386	schaersvoo	3417	decimals = find_number_of_digits(precision);
14045	schaersvoo	3418	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,1,[%.f,%.f,%.f,%.f],[%.f,%.f,%.f,%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[2],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[3],decimals,double_data[3],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	3419	if(onclick > 0){click_cnt++;}
		3420	/* click_cnt++; */
8386	schaersvoo	3421	reset();
		3422	break;
11806	schaersvoo	3423	}
		3424	}
		3425	break;
8386	schaersvoo	3426
11806	schaersvoo	3427	case RECTS:
8304	schaersvoo	3428	/*
11806	schaersvoo	3429	@ rects color,x1,y1,x2,y2,.....
		3430	@ use command 'frect color,x1,y1,x2,y2,.....' for a filled rectangle
		3431	@ use command/keyword <a href='#filled'>'filled'</a> before command 'rects color,x1,y1,x2,y2,....'
		3432	@ use command 'fillcolor color' before 'frects' to set the fill colour.
9406	schaersvoo	3433	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
12111	schaersvoo	3434	@%rects%size 400,400%xrange -10,10%yrange -10,10%rects red,0,0,4,-4,0,5,4,1
8304	schaersvoo	3435	*/
		3436	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		3437	fill_color = stroke_color;
		3438	i=0;
		3439	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	3440	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
8304	schaersvoo	3441	if(i%2 == 0 ){
		3442	double_data[i] = get_real(infile,0); /* x */
		3443	}
		3444	else
		3445	{
		3446	double_data[i] = get_real(infile,1); /* y */
		3447	}
		3448	i++;
		3449	}
		3450	decimals = find_number_of_digits(precision);
		3451	for(c = 0 ; c < i-1 ; c = c+4){
14045	schaersvoo	3452	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,1,[%.f,%.f,%.f,%.f],[%.f,%.f,%.f,%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+2],decimals,double_data[c],decimals,double_data[c+1],decimals,double_data[c+1],decimals,double_data[c+3],decimals,double_data[c+3],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	3453	if(onclick > 0){click_cnt++;}
8379	schaersvoo	3454	/* click_cnt++; */
8304	schaersvoo	3455	}
		3456	reset();
		3457	break;
8386	schaersvoo	3458
11806	schaersvoo	3459	case REPLYFORMAT:
7614	schaersvoo	3460	/*
11806	schaersvoo	3461	@ replyformat number
		3462	@ use number=-1 to deactivate the js-functions read_canvas() and read_dragdrop()
		3463	@ default values should be fine !
		3464	@ use command 'precision [0,1,10,100,1000,10000...]' before command 'replyformat' to set the desired number of decimals in the student reply / drawing
		3465	@ the last value for 'precision int' will be used to calculate the reply coordinates, if needed (read_canvas();)
14032	schaersvoo	3466	@ choose<ul><li>1 = x1,x2,x3,x4....x_n<br />y1,y2,y3,y4....y_n<br /><br />x/y in pixels</li><li>2 = x1,x2,x3,x4....x_n<br /> y1,y2,y3,y4....y_n<br /> x/y in xrange / yrange coordinate system<br /></li><li>3 = x1,x2,x3,x4....x_n<br /> y1,y2,y3,y4....y_n<br /> r1,r2,r3,r4....r_n<br /> x/y in pixels <br /> r in pixels</li><li>4 = x1,x2,x3,x4....x_n<br /> y1,y2,y3,y4....y_n<br /> r1,r2,r3,r4....r_n<br /> x/y in xrange / yrange coordinate system<br /> r in pixels</li><li>5 = Ax1,Ax2,Ax3,Ax4....Ax_n<br /> Ay1,Ay2,Ay3,Ay4....Ay_n<br /> Bx1,Bx2,Bx3,Bx4....Bx_n<br /> By1,By2,By3,By4....By_n<br /> Cx1,Cx2,Cx3,Cx4....Cx_n<br /> Cy1,Cy2,Cy3,Cy4....Cy_n<br /> ....<br /> Zx1,Zx2,Zx3,Zx4....Zx_n<br /> Zy1,Zy2,Zy3,Zy4....Zy_n<br /> x/y in pixels<br /></li><li>6 = Ax1,Ax2,Ax3,Ax4....Ax_n<br /> Ay1,Ay2,Ay3,Ay4....Ay_n<br /> Bx1,Bx2,Bx3,Bx4....Bx_n<br /> By1,By2,By3,By4....By_n<br /> Cx1,Cx2,Cx3,Cx4....Cx_n<br /> Cy1,Cy2,Cy3,Cy4....Cy_n<br /> ....<br /> Zx1,Zx2,Zx3,Zx4....Zx_n<br /> Zy1,Zy2,Zy3,Zy4....Zy_n<br /> x/y in xrange / yrange coordinate system<br /></li><li>7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n<br /> x/y in pixels</li><li>8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n<br /> x/y in xrange / yrange coordinate system</li><li>9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n<br /> x/y in pixels</li><li>10 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n<br /> x/y in xrange / yrange coordinate system</li><li>11 = Ax1,Ay1,Ax2,Ay2<br /> Bx1,By1,Bx2,By2<br /> Cx1,Cy1,Cx2,Cy2<br /> Dx1,Dy1,Dx2,Dy2<br /> ......<br /> Zx1,Zy1,Zx2,Zy2<br /> x/y in xrange / yrange coordinate system</li><li>12 = Ax1,Ay1,Ax2,Ay2<br /> Bx1,By1,Bx2,By2<br />Cx1,Cy1,Cx2,Cy2<br /> Dx1,Dy1,Dx2,Dy2<br /> ......<br /> Zx1,Zy1,Zx2,Zy2<br /> x/y in pixels</li><li>13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2<br /> x/y in xrange / yrange coordinate system</li><li>14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2<br /> x/y in pixels</li><li>15 = reply from inputfields,textareas<br /> reply1,reply2,reply3,...,reply_n</li><li>16 = mathml input fields </li><li>17 = read "userdraw text,color" only (x1,y1,text1 \\n x2,y2,text2...\\n...x_n,y_n,text_n <br /> x/y-values are in xrang/yrange</li><li>18 = read_canvas() will read all interactive clocks in H1:M1:S1,H2:M2:S2...Hn:Mn:Sn</li><li>19 = read_canvas() will return the object number of marked / clicked object (clock)<br />analogue to (shape library) onclick command </li><li>20 = read_canvas() will reply "object_number:x:y" of external images : object_number of the first draggable external image in the fly-script starts with 0 <br />e.g. expect something like 0:-5:4,1:6:2,2:-2:-5 <br /> the first image position is (-5:4) , the second image position is (6:2) and the third image position is (-2:-5) <li>21 = (x1:y1) (x2:y2) ... (x_n:y_n)<br />verbatim coordinate return</li><li>22 = returns an array .... reply[0]=x1 reply[1]=y1 reply[2]=x2 reply[3]=y2 ... reply[n-1]=x_n reply[n]=y_n<br /> x/y in xrange / yrange coordinate system</li><li>23 : can only be used for drawtype 'polyline'<br />a typical click sequence in drawtype polyline is x1,y1,x2,y2,x2,y2,x3,y3,x3,y3.....,x(n-1),y(n-1),x(n-1),y(n-1),xn,yn --replyformat 23--> x1,y1,x2,y2,x3,y3,.....x(n-1),y(n-1),xn,yn multiple occurences will be filtered out.The reply will be in x-y-range (xreply \\n yreply)</li><li>24 = read all inputfield values: even those set 'readonly'</li><li>25 = angle1,angle2...angle_n : will return the radius (one or many) of the user drawn circle segment in degrees </li><li>26 = rad1,rad2...rad_n : will return the radius (one or many) of the user drawn circle segment in radians </li><li>27 = return (only) userdraw inputfields x1,y1,text1 \\n x2,y2,text2...\\n...x_n,y_n,text_n</li><li>28 = x1,y1,r1,x2,y2,r2...x_n,y_n,r_n <br />x / y / r in xrange / yrange coordinate system: may be used to reinput into command 'circles color,x1,y1,r1,x2,y2,r2...x_n,y_n,r_n'<br /> will not return anything else (e.g. no inputfields , text etc)</li></ul>
14038	schaersvoo	3467	@ replyformat 34 : a special for OEF and dragging external images -included via commands <a href='#copy'>copy</a> or <a href='#copyresized'>copyresized</a> there will be an extra function 'read_canvas_images()' for reading the coordinates of the images.<br />for now this is a unique function, e.g. there is no 'canvas id' linked to it. (TO DO !!! 18/5/2019)
11806	schaersvoo	3468	*/
		3469	reply_format = (int) get_real(infile,1);
		3470	reply_precision = precision;
		3471	break;
		3472
		3473	case ROUNDRECT:
		3474	/*
		3475	@ roundrect x1,y1,x2,y2,radius in px,color
		3476	@ use command 'froundrect x1,y1,x2,y2,radius,color' for a filled rectangle
14032	schaersvoo	3477	@ use command/keyword <a href='#filled'>'filled'</a> before command 'roundrect x1,y1,x2,y2,radius,color'
11806	schaersvoo	3478	@ fillcolor will be identical to 'color'
9406	schaersvoo	3479	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12111	schaersvoo	3480	@%roundrect%size 400,400%xrange -10,10%yrange -10,10%roundrect 0,0,4,-4,20,green%roundrect 0,5,4,1,10,red
7614	schaersvoo	3481	*/
11806	schaersvoo	3482	for(i=0;i<6;i++){
		3483	switch(i){
		3484	case 0:double_data[0] = get_real(infile,0);break; /* x-values */
		3485	case 1:double_data[1] = get_real(infile,0);break; /* y-values */
		3486	case 2:double_data[2] = get_real(infile,0);break; /* x-values */
		3487	case 3:double_data[3] = get_real(infile,0);break; /* y-values */
		3488	case 4:int_data[0] = (int) (get_real(infile,0));break; /* radius value in pixels */
		3489	case 5:stroke_color = get_color(infile,1);/* name or hex color */
		3490	/* ensure no inverted roundrect is produced... */
		3491	if( double_data[0] > double_data[2] ){double_data[4] = double_data[0];double_data[0] = double_data[2];double_data[2] = double_data[4];}
		3492	if( double_data[3] > double_data[1] ){double_data[4] = double_data[1];double_data[1] = double_data[3];double_data[3] = double_data[4];}
7614	schaersvoo	3493	decimals = find_number_of_digits(precision);
14045	schaersvoo	3494	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,6,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],int_data[0],int_data[0],int_data[0],int_data[0],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
8379	schaersvoo	3495	if(onclick > 0){click_cnt++;}
		3496	/* click_cnt++;*/
		3497	reset();
11806	schaersvoo	3498	break;
		3499	}
		3500	}
		3501	break;
8386	schaersvoo	3502
11806	schaersvoo	3503	case ROUNDRECTS:
8347	schaersvoo	3504	/*
11806	schaersvoo	3505	@ roundrects color,radius in px,x1,y1,x2,y2,x3,y3,x4,y4,....
		3506	@ for filled roundrects use command/keyword <a href='#filled'>'filled'</a> before command
9406	schaersvoo	3507	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
13935	bpr	3508	@%roundrects%size 400,400%xrange -10,10%yrange -10,10%roundrects blue,5,0,0,4,-4,5,4,1,2
8347	schaersvoo	3509	*/
11806	schaersvoo	3510
8347	schaersvoo	3511	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
11806	schaersvoo	3512	int_data[0] = (int) (get_real(infile,0)); /* radius value in pixels */
8347	schaersvoo	3513	fill_color = stroke_color;
		3514	i=0;
		3515	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	3516	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
8347	schaersvoo	3517	if(i%2 == 0 ){
		3518	double_data[i] = get_real(infile,0); /* x */
		3519	}
		3520	else
		3521	{
		3522	double_data[i] = get_real(infile,1); /* y */
		3523	}
		3524	i++;
		3525	}
		3526	decimals = find_number_of_digits(precision);
		3527	for(c = 0 ; c < i-1 ; c = c+4){
11806	schaersvoo	3528	/* ensure no inverted roundrect is produced... */
		3529	if( double_data[c] > double_data[c+2] ){double_data[c+4] = double_data[c];double_data[c] = double_data[c+2];double_data[c+2] = double_data[c+4];}
		3530	if( double_data[c+3] > double_data[c+1] ){double_data[c+4] = double_data[c+1];double_data[c+1] = double_data[c+3];double_data[c+3] = double_data[c+4];}
14045	schaersvoo	3531	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,6,[%.f,%.f],[%.f,%.f],[%d,%d],[%d,%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],int_data[0],int_data[0],int_data[0],int_data[0],line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	3532	if(onclick > 0){click_cnt++;}
8379	schaersvoo	3533	/* click_cnt++; */
8347	schaersvoo	3534	}
		3535	reset();
		3536	break;
8386	schaersvoo	3537
11806	schaersvoo	3538	case RULER:
7614	schaersvoo	3539	/*
11806	schaersvoo	3540	@ ruler x,y,x-width ,y-height,mode
		3541	@ x,y are the initial location
		3542	@ x-width , y-height are the ruler dimensions width & height in xy-coordinate system
		3543	@ the ruler scale is by definition the x-scale, set by command 'xrange'<br />for example: a ruler x-width of 6 will have a scale ranging from 0 to 6
		3544	@ mode : use -1 to set the ruler interactive (eg mouse movement of ruler; drag & rotate)<br />use mode = '0° - 360°' to set the ruler with a static angle of some value
		3545	@ if combined with a protractor, use replyformat = 32
		3546	@ only one ruler allowed (for the time being)
		3547	@ when using command 'zoom' , pay <b>attention</b> to the size and symmetry of your canvas<br />...to avoid a partial image, locate the start position near the center of the visual canvas<br /><em>technical:<br /> the actual 'ruler' is just a static generated image in a new canvas-memory<br />This image is only generated once, and a copy of its bitmap is translated & rotated onto the visible canvas.<br />That is the reason for the 'high-speed dragging and rotating'.<br />I've limited its size to xsize × ysize e.g. the same size as the visual canvas... </em>
		3548	@ usage: first left click on the ruler will activate dragging;<br />a second left click will activate rotating (just move mouse around)<br />a third click will freeze this position and the x/y-coordinate and angle in radians will be stored in reply(3)<br />a next click will restart this sequence...
12111	schaersvoo	3549	@%ruler_interactive%size 800,400%xrange -10,10%yrange -10,10%strokecolor blue%opacity 200,50%filled%fillcolor lightgrey%ruler -9,0,10,2,-1%display degree,blue,22%zoom red
		3550	@%ruler_set_degree_45%size 800,400%xrange -10,10%yrange -10,10%strokecolor blue%opacity 200,50%filled%fillcolor lightgrey%ruler 0,0,10,2,45%zoom red
		3551	@%ruler_set_degree_125%size 800,400%xrange -10,10%yrange -10,10%strokecolor blue%opacity 200,50%filled%fillcolor lightgrey%ruler 0,0,10,2,125%zoom red
7614	schaersvoo	3552	*/
11806	schaersvoo	3553	for( i = 0;i < 5; i++ ){
7614	schaersvoo	3554	switch(i){
11806	schaersvoo	3555	case 0: double_data[0] = get_real(infile,0);break; /* x-center */
		3556	case 1: double_data[1] = get_real(infile,0);break; /* y-center */
		3557	case 2: double_data[2] = get_real(infile,0);break; /* x-width */
		3558	case 3: double_data[3] = get_real(infile,0);break; /* y-width */
		3559	case 4: int_data[0] = (int)(get_real(infile,1)); /* passive mode */
		3560	decimals = find_number_of_digits(precision);
		3561	if( int_data[0] < 0 ){
14032	schaersvoo	3562	if( js_function[JS_FIND_ANGLE] != 1 ){ js_function[JS_FIND_ANGLE] = 1; }
11806	schaersvoo	3563	}
14057	schaersvoo	3564	add_js_ruler(js_include_file,canvas_root_id,double_data[0],double_data[1],double_data[2],double_data[3],font_family,stroke_color,stroke_opacity,fill_color,fill_opacity,line_width,int_data[0],use_snap);
11806	schaersvoo	3565	string_length = snprintf(NULL,0,";ruler%d(); ",canvas_root_id);
		3566	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3567	snprintf(tmp_buffer,string_length,";ruler%d(); ",canvas_root_id);
		3568	add_to_buffer(tmp_buffer);
		3569	reply_precision = precision;
		3570	/* no reply from ruler if non-interactive */
		3571	if( reply_format == 0 && int_data[0] == -1 ){reply_format = 31;}
7614	schaersvoo	3572	break;
		3573	default: break;
		3574	}
		3575	}
		3576	break;
8386	schaersvoo	3577
11806	schaersvoo	3578	case RESETOFFSET:
7614	schaersvoo	3579	/*
11806	schaersvoo	3580	@ resetoffset
		3581	@ keyword ; use to restore text placement on the canvas to the real (x;y) coordinates of the left bottom corner of the text
		3582	@ may be active for commands <a href="#text">text</a> and <a href="#string">string</a> (e.g. objects in the drag/drop/onclick-librariy
7614	schaersvoo	3583	*/
11806	schaersvoo	3584	use_offset = 0;
		3585	break;
		3586
		3587	case ROTATE:
		3588	/*
		3589	@ rotate rotation_angle
		3590	@ angle in degrees
		3591	@ (only) the next object will be rotated is given angle
		3592	@ positive values rotate counter clockwise
		3593	@ attention: all objects will be rotated around their first point...<br /><em>rotate 45</em><br /> <em>triangle 1,1,5,1,3,4,red</em><br />will rotate 45 degrees around point (1:1)
13936	bpr	3594	@ if another rotation center is needed, use command <a href="#rotationcenter">'rotationcenter xc,yc'</a>.<br />to reset this rotationcenter, use keyword <a href="#killrotate">'killrotate'</a>
		3595	@ attention: rotate will mess up the interactivity of the rotated object <br />e.g. if combined with command <a href="#drag">"drag xy"</a> or keyword <a href="#onclick">"onclick"</a> : the mouse recognises the original -unrotated- coordinates of the object
13939	bpr	3596	@%rotate_1%size 400,400%xrange -10,10%yrange -10,10%fpoly yellow,0,0,4,3,2,5%rotate 45%fpoly violet,0,0,4,3,2,5%killrotate%rotate 90%fpoly violet,0,0,4,3,2,5%
11806	schaersvoo	3597	*/
		3598	use_rotate = TRUE;
		3599	angle = -1(get_real(infile,1));/ -1 : to be compatible with Flydraw... */
7614	schaersvoo	3600	break;
11806	schaersvoo	3601	case ROTATION_CENTER:
9306	schaersvoo	3602	/*
11806	schaersvoo	3603	@ rotationcenter x_center,y_center
		3604	@ define an rotation center in your x/y-coordinate system
		3605	@ wims will not check the validity of your input; use javascript console to debug any erors
		3606	@ if not defined a rotation will be around the first point of an object
		3607	@ to be used before command <a href="#rotate">rotate</a>
		3608	@ all other commands will use this rotation center, unless a <a href="#killrotation">killrotation</a> is given
13956	schaersvoo	3609	@%rotationcenter%size 400,400%xrange -5,10%yrange -5,10%circles green,3,3,4.25%rotationcenter 3,3%opacity 255,80%fpoly yellow,0,0,4,3,2,5%rotate 45%fpoly violet,0,0,4,3,2,5%rotate 90%fpoly lightblue,0,0,4,3,2,5%rotate 135%fpoly blue,0,0,4,3,2,5%rotate 180%fpoly orange,0,0,4,3,2,5%rotate 225%fpoly green,0,0,4,3,2,5%rotate 270%fpoly cyan,0,0,4,3,2,5%rotate 315%fpoly purple,0,0,4,3,2,5%linewidth 3%point 3,3,red%mouse red,22
13969	schaersvoo	3610	@%rotationcenter_slider%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%fillcolor black%strokecolor yellow%rotationcenter 0,0%fontsize 24%slider 0,2pi,400,30,angle degrees,rotate...%plot red,5sin(x)%filled%linewidth 1%opacity 150,50%fillcolor orange%angle 0,0,pi,0,0,blue
9306	schaersvoo	3611	*/
11806	schaersvoo	3612	temp = get_string(infile,1);
		3613	string_length = snprintf(NULL,0,"[ %s ]",temp);
		3614	check_string_length(string_length);
		3615	rotation_center = my_newmem(string_length+1);
		3616	snprintf(rotation_center,string_length,"[%s]",temp);
9306	schaersvoo	3617	break;
11806	schaersvoo	3618
		3619	case SIZE:
		3620	/*
		3621	@ size width,height
		3622	@ set canvas size in pixels
		3623	@ mandatory first command (can only be preceded by keyword <a href="#popup">'popup'</a>)
		3624	@ if xrange and/or yrange is not given the range will be set to pixels :<br />xrange 0,xsize yrange 0,ysize<br />note: lower left corner is Origin (0:0) !!! this in contrast to flydraw
		3625	*/
		3626	found_size_command = 1;
		3627	/* using fabs : however "xsize == int" : so "xsize = abs( (int) get_real(infile,0))" would be the idea... */
		3628	xsize = (int)(fabs(round(get_real(infile,0)))); /* just to be sure that sizes > 0 */
		3629	ysize = (int)(fabs(round(get_real(infile,1))));
		3630	/* sometimes we want xrange / yrange to be in pixels...without telling x/y-range */
		3631	xmin = 0;xmax = xsize;
		3632	ymin = 0;ymax = ysize;
		3633
		3634	/*
		3635	The sequence in which stuff is finally printed is important !!
		3636	*/
		3637	fprintf(stdout,"\n\
13970	obado	3638	<script>\n\
11806	schaersvoo	3639	/<![CDATA[/\n\
		3640	if( typeof(wims_status) === 'undefined' ){ var wims_status = \"$status\";};\
		3641	if( typeof(use_dragdrop_reply) === 'undefined' ){ var use_dragdrop_reply = false;};\
		3642	if( typeof(canvas_scripts) === 'undefined' ){ var canvas_scripts = new Array();};\
		3643	canvas_scripts.push(\"%d\");\n/]]>/\n</script>\n\
		3644	",canvas_root_id);
		3645
		3646	/* style=\"display:block;position:relative;margin-left:auto;margin-right:auto;margin-bottom:4px;\" */
		3647	if( use_tooltip != 2){
		3648	fprintf(stdout,"<!-- canvasdraw div -->\n\
		3649	<div tabindex=\"0\" id=\"canvas_div%d\" style=\"position:relative;width:%dpx;height:%dpx;margin-left:auto;margin-right:auto;\" oncontextmenu=\"return false;\"></div>\n\
		3650	<!-- tooltip and input placeholder -->\n\
		3651	<div id=\"tooltip_placeholder_div%d\" style=\"text-align:center\"><span id=\"tooltip_placeholder%d\" style=\"display:none;\"></span></div>\
		3652	<!-- include actual object code via include file -->\n\
13970	obado	3653	<script id=\"canvas_script%d\" src=\"%s\"></script>\n",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,getfile_cmd);
11806	schaersvoo	3654	}
		3655	else
		3656	{
		3657	/*
		3658	set canvas_div invisible and do not include placeholder in main html page :
		3659	the js-include will also be in a popup window...to be shown when wims $status = done
		3660	*/
		3661	fprintf(stdout,"<!-- canvasdraw div invisible -->\n\
		3662	<div tabindex=\"0\" id=\"canvas_div%d\" style=\"display:none;position:relative;width:%dpx;height:%dpx;margin-left:auto;margin-right:auto;\" ></div>\n\
		3663	<div id=\"tooltip_placeholder_div%d\" style=\"display:none;position:relative;margin-left:auto;margin-right:auto;margin-bottom:4px;\"><span id=\"tooltip_placeholder%d\" style=\"display:none;\"></span></div>\
		3664	<!-- include actual object code via include file -->\n\
13970	obado	3665	<script id=\"canvas_script%d\" src=\"%s\"></script>\n",canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,getfile_cmd);
11806	schaersvoo	3666	}
		3667
		3668	/* these must be global...it's all really very poor javascript :( */
13970	obado	3669	fprintf(js_include_file,"\n/* begin generated javascript include for canvasdraw */\n\
11806	schaersvoo	3670	\"use strict\";\n\
13970	obado	3671	/* these variables and functions must be global */\n\
11806	schaersvoo	3672	var read_dragdrop%d;\
14038	schaersvoo	3673	var read_canvas_images;\
11806	schaersvoo	3674	var read_canvas%d;\
		3675	var set_clock;\
		3676	var clear_draw_area%d;\
		3677	var update_draw_area%d;\
14038	schaersvoo	3678	var place_image_on_canvas;\
11806	schaersvoo	3679	var draw_boxplot;\
		3680	var redraw_all%d;\
		3681	var userdraw_primitive;\n\
13970	obado	3682	var wims_canvas_function%d = function(){\n/* common used stuff */\n\
11806	schaersvoo	3683	var userdraw_x = [];var userdraw_y = [];var userdraw_radius = [];\n\
		3684	var xsize = %d;\
		3685	var ysize = %d;\
		3686	var precision = 100;\
		3687	var canvas_div = document.getElementById(\"canvas_div%d\");\
		3688	var create_canvas%d = function(canvas_type,size_x,size_y){var cnv;if(document.getElementById(\"wims_canvas%d\"+canvas_type)){ cnv = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{try{ cnv = document.createElement(\"canvas\"); }catch(e){alert(\"Your browser does not support HTML5 CANVAS:GET FIREFOX !\");return;};canvas_div.appendChild(cnv);};cnv.width = size_x;cnv.height = size_y;cnv.style.top = 0;cnv.style.left = 0;cnv.style.position = \"absolute\";cnv.id = \"wims_canvas%d\"+canvas_type;return cnv;};\
		3689	function findPosX(i){ var obj = i;var curleft = 0;if(obj.offsetParent){while(1){curleft += obj.offsetLeft;if(!obj.offsetParent){break;};obj = obj.offsetParent;};}else{if(obj.x){curleft += obj.x;};};return curleft;};function findPosY(i){var obj = i;var curtop = 0;if(obj.offsetParent){while(1){curtop += obj.offsetTop;if(!obj.offsetParent){break;};obj = obj.offsetParent;};}else{if(obj.y){curtop += obj.y;};};return curtop;};\
		3690	function x2px(x){if(use_xlogscale == 0 ){return parseFloat(xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin));}else{var x_max = Math.log(xmax)/Math.log(xlogbase);var x_min = Math.log(xmin)/Math.log(xlogbase);var x_in = Math.log(x)/Math.log(xlogbase);return x_inxsize/(x_max - x_min) - xsizex_min/(x_max - x_min);};};\
		3691	function px2x(px){if(use_xlogscale == 0 ){return parseFloat(px(xmax - xmin)/xsize + xmin);}else{var x_max = Math.log(xmax)/Math.log(xlogbase);var x_min = Math.log(xmin)/Math.log(xlogbase);var x_out = x_min +px(x_max - x_min)/(xsize);return Math.pow(xlogbase,x_out);};};\
		3692	function px2y(py){if(use_ylogscale == 0 ){return parseFloat(ymax - py(ymax - ymin)/ysize);}else{var y_max = Math.log(ymax)/Math.log(ylogbase);var y_min = Math.log(ymin)/Math.log(ylogbase);var y_out = y_max +py(y_min - y_max)/(ysize);return Math.pow(ylogbase,y_out);};};\
		3693	function y2px(y){if(use_ylogscale == 0){return parseFloat(-1yysize/(ymax - ymin) + ymaxysize/(ymax - ymin));}else{var y_max = Math.log(ymax)/Math.log(ylogbase);var y_min = Math.log(ymin)/Math.log(ylogbase);var y_in = Math.log(y)/Math.log(ylogbase);return (y_max - y_in)ysize/(y_max - y_min);};};\
		3694	function scale_x_radius(rx){return rx*xsize/(xmax - xmin);};\
		3695	function scale_y_radius(ry){return ry*ysize/(ymax - ymin);};\
		3696	function distance(x1,y1,x2,y2){return Math.sqrt( (x1-x2)(x1-x2) + (y1-y2)(y1-y2) );};\
		3697	function distance_to_line (r,q,x,y){var c = (y) - (-1/r)(x);var xs = r(c - q)/(rr+1);var ys = (r)(xs)+(q);return parseInt(Math.sqrt( (xs-x)(xs-x) + (ys-y)(ys-y) ));};\
		3698	function move(obj,dx,dy){for(var p = 0 ; p < obj.x.length; p++){obj.x[p] = obj.x[p] + dx;obj.y[p] = obj.y[p] + dy;};return obj;};\
		3699	function slide(obj,dx,dy){for(var p = 0 ; p < obj.x.length; p++){obj.x[p] = x2px(obj.xorg[p] + dx);obj.y[p] = y2px(obj.yorg[p] + dy);};return obj;};\
14044	schaersvoo	3700	var isTouch = (('ontouchstart' in window) \|\| (navigator.msMaxTouchPoints > 0));var snap_x = 1;var snap_y = 1;\
11806	schaersvoo	3701	function snap_to_x(x){return x2px(snap_x*(Math.round((px2x(x))/snap_x)));};\
11890	schaersvoo	3702	function snap_to_y(y){return y2px(snap_y*(Math.round((px2y(y))/snap_y)));};\
14044	schaersvoo	3703	function multisnap_check(x,y,snap){switch(snap){case 1:return [snap_to_x(x),snap_to_y(y)];break;case 2:return [snap_to_x(x),y];break;case 3:return [x,snap_to_y(y)];break;case 4:return snap_to_points(x,y);break;default: return [x,y];break;};};\
11806	schaersvoo	3704	var xlogbase = 10;\
		3705	var ylogbase = 10;\
		3706	var use_xlogscale = 0;\
		3707	var use_ylogscale = 0;\
11891	schaersvoo	3708	var x_strings = {};var x_strings_up = [];\
11806	schaersvoo	3709	var y_strings = null;\
		3710	var use_pan_and_zoom = 0;\
		3711	var use_jsmath = 0;\
		3712	var xstart = 0;\
		3713	var ystart = 0;\
		3714	var unit_x=\" \";\
		3715	var unit_y=\" \";\
14038	schaersvoo	3716	var external_canvas = create_canvas%d(%d,xsize,ysize);",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,xsize,ysize,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,EXTERNAL_IMAGE_CANVAS);
11806	schaersvoo	3717	/* default add the drag code : nearly always used ...*/
		3718	add_drag_code(js_include_file,DRAG_CANVAS,canvas_root_id);
		3719
		3720	break;
		3721
		3722
		3723	case SEGMENT:
7614	schaersvoo	3724	/*
11806	schaersvoo	3725	@ segment x1,y1,x2,y2,color
		3726	@ alternative : seg
		3727	@ draw a line segment between points (x1:y1)--(x2:y2) in color 'color'
		3728	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
14061	schaersvoo	3729	@%segment_onclick%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%onclick%segment 1,1,-9,3,green
		3730	@%segment_drag_y%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%drag y%segment 1,1,-9,3,green
7614	schaersvoo	3731	*/
11806	schaersvoo	3732	for(i=0;i<5;i++) {
7614	schaersvoo	3733	switch(i){
11806	schaersvoo	3734	case 0: double_data[0]= get_real(infile,0);break; /* x1-values */
		3735	case 1: double_data[1]= get_real(infile,0);break; /* y1-values */
		3736	case 2: double_data[2]= get_real(infile,0);break; /* x2-values */
		3737	case 3: double_data[3]= get_real(infile,0);break; /* y2-values */
		3738	case 4: stroke_color=get_color(infile,1);/* name or hex color */
		3739	decimals = find_number_of_digits(precision);
14045	schaersvoo	3740	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,double_data[1],decimals,double_data[3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	3741	if(onclick > 0){click_cnt++;}
		3742	/* click_cnt++; */
		3743	reset();
		3744	break;
		3745	default: break;
7614	schaersvoo	3746	}
		3747	}
		3748	break;
10953	bpr	3749
11806	schaersvoo	3750	case SEGMENTS:
9213	schaersvoo	3751	/*
11806	schaersvoo	3752	@ segments color,x1,y1,x2,y2,...,x_n,y_n
		3753	@ alternative : segs
		3754	@ draw multiple segments between points (x1:y1)--(x2:y2).....and... (x_n-1:y_n-1)--(x_n:y_n) in color 'color'
14038	schaersvoo	3755	@ use command 'linewidth int' to adust size
11806	schaersvoo	3756	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
12111	schaersvoo	3757	@%segments_onclick%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%onclick%segments green,1,1,3,3,0,0,-3,3,1,1,4,-1,-5,5,-3,-1
		3758	@%segments_drag_y%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%drag y%segments green,1,1,3,3,0,0,-3,3,1,1,4,-1,-5,5,-3,-1
9213	schaersvoo	3759	*/
11806	schaersvoo	3760	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		3761	fill_color = stroke_color;
		3762	i=0;
		3763	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	3764	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
11806	schaersvoo	3765	if(i%2 == 0 ){
		3766	double_data[i] = get_real(infile,0); /* x */
		3767	}
		3768	else
		3769	{
		3770	double_data[i] = get_real(infile,1); /* y */
		3771	}
		3772	i++;
		3773	}
		3774	decimals = find_number_of_digits(precision);
		3775	for(c = 0 ; c < i-1 ; c = c+4){
14045	schaersvoo	3776	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30,30],[30,30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+2],decimals,double_data[c+1],decimals,double_data[c+3],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	3777	if(onclick > 0){click_cnt++;}
		3778	/* click_cnt++;*/
		3779	}
		3780	reset();
9213	schaersvoo	3781	break;
11806	schaersvoo	3782
		3783	case SETLIMITS:
9213	schaersvoo	3784	/*
11806	schaersvoo	3785	@ setlimits
		3786	@ keyword : if set, it will produce 4 inputfields for 'xmin,xmax,ymin,ymax' and an 'ok' button
		3787	@ may be used for inputfield based zooming / panning
		3788	@ may be styled using command <a href="#inputstyle">inputstyle</a>
		3789	@ use commands <a href="#xlabel">xlabel / ylabel</a> to change text from xmin to 'xlabel' etc
		3790	@ note:the input value will not be checked on validity
12107	schaersvoo	3791	@%setlimits%size 400,400%xrange -10,10%yrange -10,10%precision 1%xlabel T%ylabel H%axis%axisnumbering%grid 2,2,grey,2,2,5,grey%precision 100%multistrokecolors red,green,blue,orange%multilinewidth 1,1,2,2%multistrokeopacity 0.6,0.7,0.8,0.9%jsplot red,1/x,-1,x,1/(x-3),1/(x+3)%setlimits
9213	schaersvoo	3792	*/
11806	schaersvoo	3793	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		3794	add_setlimits(js_include_file,canvas_root_id,font_size,input_style);
		3795	/* add_setlimits provides 'fprintf(js_include_file,"use_pan_and_zoom = 1;");' */
		3796	use_pan_and_zoom = TRUE;
		3797	done = TRUE;
9213	schaersvoo	3798	break;
11806	schaersvoo	3799
		3800	case SETPIXEL:
9213	schaersvoo	3801	/*
11806	schaersvoo	3802	@ setpixel x,y,color
		3803	@ A rectangular "point" with diameter 1 pixel centered at (x:y) in xrange / yrange
		3804	@ pixels can <b>not</b> be dragged or clicked
		3805	@ "pixelsize = 1" may be changed by command "pixelsize int"
12107	schaersvoo	3806	@%setpixel%size 400,400%xrange -10,10%yrange -10,10%setpixel 1,1,red%pixelsize 2%setpixel 2,2,green%pixelsize 3%setpixel 3,3,blue%
9213	schaersvoo	3807	*/
11806	schaersvoo	3808	if( js_function[DRAW_PIXELS] != 1 ){ js_function[DRAW_PIXELS] = 1;}
		3809	for(i=0;i<3;i++){
		3810	switch(i){
		3811	case 0: double_data[0] = get_real(infile,0); break; /* x */
14032	schaersvoo	3812	case 1: double_data[1] = get_real(infile,0); break; /* y */
11806	schaersvoo	3813	case 2: stroke_color = get_color(infile,1);
		3814	string_length = snprintf(NULL,0,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		3815	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3816	snprintf(tmp_buffer,string_length,"draw_setpixel([%f],[%f],\"%s\",%.2f,%d);\n",double_data[0],double_data[1],stroke_color,stroke_opacity,pixelsize);
		3817	add_to_buffer(tmp_buffer);
		3818	break;
		3819	default:break;
		3820	}
		3821	}
		3822	reset();
		3823	break;
		3824
		3825
		3826	case SLIDER:
9213	schaersvoo	3827	/*
11806	schaersvoo	3828	@ slider start_value,end_value,width px,height px,<em>type</em>,label
		3829	@ <em>type</em> may be : xy,x,y,angle
		3830	@ if a slider value display is desired, use for argument <em>type</em>:<br />xy display<br />x display<br />y display<br />angle radian<br />angle degree
		3831	@ if a unit (or something like that...) for x/y-value display is needed, use commands 'xunit' and / or 'yunit'
		3832	@ if the translation should be performed using a function, use for type: xy function,x function,y function<br />use commands sliderfunction_x and/or sliderfunction_y before the slider command to define the functions<br />example:<br />sliderfunction_x x^2<br />sliderfunction_y y^2<br />slider -5,5,100,100,xy function,Some_Text<br />...some stuff to slide<br />killslider<br />sliderfunction_x x^2-2<br />slider -15,15,100,10,x function,Some_Other_Text<br />...more stuff to slide<br />killslider<br />... etc
		3833	@ use command 'slider' before draggable/clickable objects.
		3834	@ drag and drop may be combined with rotation slider<br />for example an arrow rotated by a slider may be placed anywhere (drag&drop)<em>size 300,300<br />xrange -5,5<br />yrange -5,5<br />grid 1,1,grey<br />linewidth 3<br />drag xy<br />fillcolor orange<br />strokecolor blue<br />slider 0,2*pi,250,30,angle degrees,Rotate arrow<br />arrow 2,2,5,5,8,red</em>
		3835	@ no slider for a math function, these can be traced using command 'trace_jscurve some_function_in_x'
		3836	@ a slider will affect all draggable objects after the 'slider' command...<br />and can be used to group translate / rotate several objects...<br />until a next 'slider' or keyword 'killslider'
		3837	@ amount of sliders is not limited.
		3838	@ javascript:read_dragdrop(); will return an array with 'object_number:slider_value'
		3839	@ type=xy: will produce a 2D 'slider' [rectangle width x heigh px] in your web page
		3840	@ every draggable object may have its own slider (no limit in amount of sliders)
		3841	@ label: some slider text
		3842	@ use fillcolor for slider ball
		3843	@ use strokecolor for slider bar
		3844	@ use fontfamily / fontcolor to set used fonts
		3845	@ use opacity (only fill opacity will be used) to set transparency
		3846	@ the slider canvas will be added to the 'tooltip div' : so incompatible with command tooltip ; setlimits etc
13950	schaersvoo	3847	@%slider_angle%size 300,300%xrange -5,5%yrange -5,5%grid 1,1,grey%linewidth 3%fillcolor orange%strokecolor blue%slider 0,2*pi,300,30,angle degrees,Rotate arrow%arrow 0,0,4.5,0,8,red%opacity 200,100%frect -4,4,1,-1,blue%killslider%frect -4,4,1,-1,blue
		3848	@%slider_x%size 300,300%xrange -5,5%yrange -5,5%grid 1,1,grey%linewidth 3%fillcolor orange%strokecolor blue%slider 0,2*pi,300,30,x,move arrow%arrow 0,0,4.5,0,8,red%opacity 200,100%frect -4,4,1,-1,blue%killslider%frect -4,4,1,-1,blue%display x,red,12
13951	schaersvoo	3849	@%slider_x_y_angle%size 300,300%xrange -5,5%yrange -5,5%grid 1,1,grey%linewidth 3%fillcolor orange%strokecolor blue%slider 0,2*pi,300,30,angle degrees,Rotate arrow%arrow 0,0,4.5,0,8,red%killslider%opacity 200,100%slider -2,2,300,30,x,move blue rectangle%frect -4,4,1,-1,blue%killslider%slider -2,2,300,30,y,move green rectangle%frect -4,4,1,-1,green
9213	schaersvoo	3850	*/
11806	schaersvoo	3851	slider_cnt++;/* slider starts at 1 */
		3852	for(i=0; i<6 ; i++){
		3853	switch(i){
		3854	case 0: double_data[0] = get_real(infile,0);break; /* start value */
		3855	case 1: double_data[1] = get_real(infile,0);break; /* end value */
		3856	case 2: int_data[0] = (int)(get_real(infile,0));break; /* width */
		3857	case 3: int_data[1] = (int)(get_real(infile,0));break; /* height */
		3858	case 4: temp = get_string_argument(infile,0); /* type : xy,x,y,angle */
		3859	if(strstr(temp,"xy")!= 0){
		3860	slider = 4;
		3861	}
		3862	else
		3863	{
		3864	if(strstr(temp,"x") != 0){
		3865	slider = 1;
		3866	}
		3867	else
		3868	{
		3869	if(strstr(temp,"y") != 0){
		3870	slider = 2;
		3871	}
		3872	else
		3873	{
		3874	if(strstr(temp,"angle") != 0){ /* angle diplay radian */
		3875	slider = 3;
		3876	}
		3877	else
		3878	{
		3879	canvas_error("slider can be of type: xy,x,y,angle,fun_x:fun_y");
		3880	}
		3881	}
		3882	}
		3883	}
		3884	if(strstr(temp,"display")!=0){
		3885	if( slider == 4 ){ /* show x:y */
		3886	use_slider_display = 1; /* show x xy values in canvas window */
		3887	}
		3888	else
		3889	{
		3890	if( slider == 1 ){ /* show only x -values */
		3891	use_slider_display = 10;
		3892	}
		3893	else
		3894	{
		3895	use_slider_display = 11; /* show only y -values*/
		3896	}
		3897	}
		3898	}
		3899	else
		3900	{
		3901	if(strstr(temp,"degree")!= 0){
		3902	use_slider_display = 2; /* show angle values in canvas window */
		3903	}
		3904	else
		3905	{
		3906	if(strstr(temp,"radian")!=0){
		3907	use_slider_display = 3; /* show radian values in canvas window */
		3908	}
		3909	}
		3910	}
		3911	if(use_slider_display != 0 && slider_cnt == 1){ /add just once the display js-code /
		3912	add_slider_display(js_include_file,canvas_root_id,precision,font_size,font_color,stroke_opacity);
		3913	}
		3914	if(strstr(temp,"fun")!= 0){
		3915	if( use_js_math == FALSE){/* add this stuff only once...*/
		3916	add_to_js_math(js_include_file); use_js_math = TRUE;
		3917	}
		3918	fprintf(js_include_file,"var slider_function%d = {x:to_js_math('%s'),y:to_js_math('%s')};",slider_cnt,slider_function_x,slider_function_y);
		3919	slider_function_x = "x";slider_function_y = "y";/* reset the functions for next slider...*/
		3920	}
		3921	else
		3922	{
		3923	fprintf(js_include_file,"var slider_function%d = {x:'x',y:'y'};",slider_cnt);
		3924	/* we must define these, otherwise 'use stict' will cause an error */
		3925	}
		3926	break;
		3927	case 5: /* some string used for slider description */
		3928	if(slider == 4){
		3929	add_xyslider(js_include_file,canvas_root_id,double_data[0],double_data[1],int_data[0],int_data[1],slider,get_string_argument(infile,1),slider_cnt,stroke_color,fill_color,line_width,fill_opacity,font_family,font_color,use_slider_display);
		3930	}
		3931	else
		3932	{
		3933	add_slider(js_include_file,canvas_root_id,double_data[0],double_data[1],int_data[0],int_data[1],slider,get_string_argument(infile,1),slider_cnt,stroke_color,fill_color,line_width,fill_opacity,font_family,font_color,use_slider_display);
		3934	}
		3935	break;
		3936	}
		3937	}
9213	schaersvoo	3938	break;
11806	schaersvoo	3939	case SLIDER_X:
9213	schaersvoo	3940	/*
11806	schaersvoo	3941	@ sliderfunction_x some_function_in_x
		3942	@ default value "x"
		3943	@ the x-value of the slider object(s) will be calculated with this function.
		3944	@ default is the x-slider value itself
		3945	@ only used by command 'slider'
		3946	@ define before a slider command !
9213	schaersvoo	3947	*/
11806	schaersvoo	3948	slider_function_x = get_string(infile,1);
		3949	break;
		3950	case SLIDER_Y:
		3951	slider_function_y = get_string(infile,1);
		3952	/*
		3953	@ sliderfunction_y some_function_in_y
		3954	@ default value "y"
		3955	@ the y-value of the slider object(s) will be calculated with this function.
		3956	@ only used by command 'slider'
		3957	@ define before a slider command !
		3958	*/
		3959	break;
		3960	case SGRAPH:
		3961	/*
		3962	@ sgraph xstart,ystart,xmajor,ymajor,xminor,yminor,majorgrid_color,minorgrid_color
		3963	@ primitive implementation of a 'broken scale' graph...
		3964	@ not very versatile: only usable in combination with userdraw <br />eg no other objects will obey this "coordinate system"<br />if you want to place an object into this coordinate system, be aware that 10% or 20% of xsize and/or ysize is 'lost'.<br />Use these "formulas" to recalculate the virtual coordinates:<br />factor=0.8 in case xstart != xmin (or ystart != ymin)<br />factor=0.9 in case xstart = xmin (or ystart = ymin)<br />px_x_point = ((factorxsize)/(xmax - xstart))(x_point - xmax)+xsize<br />x_recalculated = px(xmax - xmin)/xsize + $xmin<br />px_y_point = -1factory_pointysize/(ymax - ystart) + ymaxfactorysize/(ymax - ystart)<br />y_recalculated = ymax - py*(ymax - ymin)/ysize<br />
12111	schaersvoo	3965	@%sgraph%size 400,400%xrange 0,10000%yrange 0,100%sgraph 9000,50,100,10,4,4,grey,blue%userinput_xy%linewidth 2%userdraw segments,red%precision 0%mouse blue,22
11806	schaersvoo	3966	*/
		3967	if( js_function[DRAW_SGRAPH] != 1 ){ js_function[DRAW_SGRAPH] = 1;}
		3968	for(i = 0 ; i < 8 ;i++){
		3969	switch(i){
		3970	case 0:double_data[0] = get_real(infile,0);break;
		3971	case 1:double_data[1] = get_real(infile,0);break;
		3972	case 2:double_data[2] = get_real(infile,0);break;
		3973	case 3:double_data[3] = get_real(infile,0);break;
		3974	case 4:int_data[0] = (int)(get_real(infile,0));break;
		3975	case 5:int_data[1] = (int)(get_real(infile,0));break;
		3976	case 6:stroke_color = get_color(infile,0);break;
		3977	case 7:font_color = get_color(infile,1);
		3978	string_length = snprintf(NULL,0,"xstart = %f;\nystart = %f;\ndraw_sgraph(%d,%d,%f,%f,%d,%d,\"%s\",\"%s\",\"%s\",%f,%d);\n",double_data[0],double_data[1],GRID_CANVAS,precision,double_data[2],double_data[3],int_data[0],int_data[1],stroke_color,font_color,font_family,stroke_opacity,font_size);
		3979	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		3980	snprintf(tmp_buffer,string_length,"xstart = %f;\nystart = %f;\ndraw_sgraph(%d,%d,%f,%f,%d,%d,\"%s\",\"%s\",\"%s\",%f,%d);\n",double_data[0],double_data[1],GRID_CANVAS,precision,double_data[2],double_data[3],int_data[0],int_data[1],stroke_color,font_color,font_family,stroke_opacity,font_size);
		3981	add_to_buffer(tmp_buffer);
		3982	break;
		3983	default:break;
		3984	}
		3985	}
		3986	/* sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity)*/
9213	schaersvoo	3987	break;
11806	schaersvoo	3988
		3989	case SNAPTOFUNCTION:
9213	schaersvoo	3990	/*
11806	schaersvoo	3991	@ snaptofunction some_function_in_x,some_funtion_in_y
		3992	@ alternative : snaptofun some_function_in_x,some_funtion_in_y
		3993	@ the next object will snap to the calculated values
13987	bpr	3994	@ note: snaptopfun is probably not really useful feature...
11806	schaersvoo	3995	@ if you want only modification of y-values,just use: snaptofunction x,5*sin(1/y)
		3996	@ if you want only modification of x-values,just use: snaptofunction 5*sin(1/x),y
		3997	@ for now only one instance of 'snaptofunction' is allowed
		3998	@ use rawmath on your functions: no validity checking is done by wims !
11997	schaersvoo	3999	@ note: switching x and y coordinates?<br />snaptofunction y,x
13960	bpr	4000	@%snaptofunction_1%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 1%grid 2,2,grey,2,2,5,grey%precision 100%snaptofunction x,5sin(x)%linewidth 3%crosshairsize 6%userdraw crosshairs,red%linewidth 2%curve blue,5sin(x)%xunit = x-value%display x,blue,22
		4001	@%snaptofunction_2%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 1%grid 2,2,grey,2,2,5,grey%precision 100%snaptofunction y^2-9,y%#snaptofunction y^2-9,abs(y)%linewidth 3%crosshairsize 6%userdraw crosshairs,red%linewidth 2%curve blue,sqrt(x+9)%curve blue,-1*sqrt(x+9)%yunit = y-value%display y,blue,22
9213	schaersvoo	4002	*/
11806	schaersvoo	4003	temp = get_string_argument(infile,0);
14038	schaersvoo	4004	use_snap = 2;
11806	schaersvoo	4005	if( use_js_math == FALSE){/* add this stuff only once...*/
		4006	add_to_js_math(js_include_file); use_js_math = TRUE;
		4007	}
		4008	fprintf(js_include_file,"var snap_fun = {x:to_js_math('%s'),y:to_js_math('%s')};function snap_to_fun(px,py){ var x = px2x(px); var y = px2y(py); return [ x2px(eval(snap_fun.x)) , y2px(eval(snap_fun.y)) ];};",temp,get_string(infile,1));
		4009	break;
		4010	case SNAPTOPOINTS:
		4011	/*
		4012	@ snaptopoints x1,y1,x2,y2,x3,y3....
		4013	@ a userdraw object will snap to these points.
		4014	@ the array size (e.g. the number of points) of command 'snaptopoints' is limited by constant MAX_INT (canvasdraw.h)
13982	bpr	4015	@ a draggable object (use command "drag x\|y\|xy") will snap to the closed of these points when dragged (mouseup)
11806	schaersvoo	4016	@ other options: use keyword "snaptogrid", "xsnaptogrid" or "ysnaptogrid"
13950	schaersvoo	4017	@%snaptopoints%size 400,400%xrange -5,5%yrange -5,5%snaptopoints -1,-3,-1,-2,-1,0,-1,1,-1,2,-1,3,1,-3,1,-2,1,-1,1,0,1,1,1,2,1,3%linewidth 2%points red,-1,-3,-1,-2,-1,0,-1,1,-1,2,-1,3,1,-3,1,-2,1,-1,1,0,1,1,1,2,1,3%userdraw arrows,red
11806	schaersvoo	4018	*/
		4019	i = 0;
14038	schaersvoo	4020	use_snap = 4;
11806	schaersvoo	4021	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	4022	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
11806	schaersvoo	4023	if(i%2 == 0 ){
		4024	double_data[i] = get_real(infile,0); /* x */
		4025	}
		4026	else
		4027	{
		4028	double_data[i] = get_real(infile,1); /* y */
		4029	}
		4030	i++;
		4031	}
		4032	decimals = find_number_of_digits(precision);
14044	schaersvoo	4033	fprintf(js_include_file,"function find_min_diff(x,y,X,Y){var diff = 100000000;var chk;var idx = 0;for(var p = 0 ; p < %d ; p++){chk = distance(x,y,X[p],Y[p]);if( chk < diff ){ diff = chk; idx = p;};};return idx;};function snap_to_points(x,y){x = px2x(x); y = px2y(y);var points = [%s];var xpoints = points[0];var ypoints = points[1];var idx = find_min_diff(x,y,xpoints,ypoints);x = xpoints[idx];y = ypoints[idx];return [x2px(x),y2px(y)];};",(int) (0.5*i),double_xy2js_array(double_data,i,decimals));
11806	schaersvoo	4034	break;
		4035
		4036	case SNAPTOGRID:
		4037	/*
		4038	@ snaptogrid
		4039	@ keyword (no arguments required)
14038	schaersvoo	4040	@ a draggable object (use command "drag x\|y\|xy") will snap to the given grid when dragged (mouseup)
11806	schaersvoo	4041	@ in case of userdraw the drawn points will snap to xmajor / ymajor grid
		4042	@ if no grid is defined ,points will snap to every integer xrange/yrange value. (eg snap_x=1,snap_y=1)
		4043	@ if you do not want a visible grid, but you only want a 'snaptogrid' with some value...define this grid with opacity 0.
		4044	@ if xminor / yminor is defined,(use keyword 'axis' to activate the minor steps) the drawing will snap to xminor and yminor<br />use only even dividers in x/y-minor...for example<br />snaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
12311	schaersvoo	4045	@%snaptogrid_1%size 400,400%xrange -5,5%yrange -5,5%axis%axisnumbering%precision 1%grid 1,1,grey,2,2,6,grey%linewidth 2%snaptogrid%userdraw crosshairs,blue%mouse red,22
		4046	@%snaptogrid_2%size 400,400%xrange -5,5%yrange -5,5%axis%axisnumbering%precision 1%grid 1,1,grey,4,1,6,grey%linewidth 1%snaptogrid%userdraw crosshairs,blue%mouse red,22
11806	schaersvoo	4047	*/
14038	schaersvoo	4048	use_snap = 1;
11806	schaersvoo	4049	break;
		4050
		4051	case SQUARE:
		4052	/*
		4053	@ square x,y,side (px) ,color
		4054	@ draw a square with left top corner (x:y) with side 'side' in color 'color'
		4055	@ use command 'fsquare x,y,side,color' for a filled square
14038	schaersvoo	4056	@ use command/keyword <a href='#filled'>'filled'</a> before command 'square x,y,side,color'
11806	schaersvoo	4057	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12107	schaersvoo	4058	@%square%size 400,400%xrange -10,10%yrange -10,10%linewidth 3%filled%fillcolor blue%square 0,0,120,green
11806	schaersvoo	4059	*/
11991	schaersvoo	4060	for(i=0;i<4;i++){
11806	schaersvoo	4061	switch(i){
		4062	case 0:double_data[0] = get_real(infile,0);break; /* x1-values */
		4063	case 1:double_data[1] = get_real(infile,0);break; /* y1-values */
11991	schaersvoo	4064	case 2:double_data[2] = get_real(infile,0);break; /* width in px */
		4065	case 3:stroke_color = get_color(infile,1);/* name or hex color */
		4066	decimals = find_number_of_digits(precision);
		4067	double_data[3] = double_data[0] + (xmax - xmin)*double_data[2]/xsize;
		4068	double_data[4] = double_data[1] + -1(ymax - ymin)double_data[2]/ysize;
14045	schaersvoo	4069	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,1,[%.f,%.f,%.f,%.f],[%.f,%.f,%.f,%.f],[%d],[%d],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[3],decimals,double_data[3],decimals,double_data[0],decimals,double_data[1],decimals,double_data[1],decimals,double_data[4],decimals,double_data[4],line_width,line_width,line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11991	schaersvoo	4070	if(onclick > 0){click_cnt++;}/* click_cnt++; */
		4071	reset();break;
		4072	default: break;
11806	schaersvoo	4073	}
		4074	}
9213	schaersvoo	4075	break;
13829	bpr	4076
11806	schaersvoo	4077	case STATUS:
9213	schaersvoo	4078	/*
11806	schaersvoo	4079	@ status
		4080	@ keyword
		4081	@ alernative : nostatus
		4082	@ used to override the effects of "status=done" in wims (answer.phtml)
		4083	@ affects 'readonly' in inputfields / textarea's in canvasimage and all userdraw based commands
13948	schaersvoo	4084	@ e.g.: if keyword 'status' is set, the pupil will be able to modify the canvas when the 'wims $status variable' is set to 'done'
9213	schaersvoo	4085	*/
11806	schaersvoo	4086
		4087	fprintf(js_include_file,"\nwims_status=\"waiting\";\n");
9213	schaersvoo	4088	break;
11806	schaersvoo	4089
		4090	case STRING:
9213	schaersvoo	4091	/*
11806	schaersvoo	4092	@ string color,x,y,the text string
		4093	@ may be set "onclick" or "drag xy"
		4094	@ unicode supported: string red,0,0,\\u2232
		4095	@ use a command like 'fontfamily italic 24px Ariel' <br />to set fonts on browser that support font change
12311	schaersvoo	4096	@%string%size 400,400%xrange -10,10%yrange -10,10%fontfamily 14px Ariel%crosshair -3,-3,red%crosshair 3,3,blue%string red,-3,-3,Hello World%fontfamily Italic 18px Ariel%string red,3,3,Hello World%fontfamily 22pt STIX%string black,-10,8,\\u03B1 \\u03B2 \\u03B3 \\u03B4 \\u03B5 \\u03B6 \\u03B7 \\u03B8 \\u03B9 \\u03BA \\u03BB \\u03BC \\u03BD \\u03BE \\u03BF
9213	schaersvoo	4097	*/
11806	schaersvoo	4098	for(i=0;i<5;i++){
		4099	switch(i){
		4100	case 0: stroke_color = get_color(infile,0);break;/* name or hex color */
		4101	case 1: double_data[0] = get_real(infile,0);break; /* x in xrange*/
		4102	case 2: double_data[1] = get_real(infile,0);break; /* y in yrange*/
		4103	case 3: decimals = find_number_of_digits(precision);
		4104	temp = get_string_argument(infile,1);
		4105	decimals = find_number_of_digits(precision);
14045	schaersvoo	4106	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,14,[%.f],[%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,use_rotate,angle,temp,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	4107	if(onclick > 0){click_cnt++;}
14038	schaersvoo	4108	onclick = 0;
		4109	use_offset = 0;
		4110	reset();;
11806	schaersvoo	4111	break;
		4112	default:break;
		4113	}
9213	schaersvoo	4114	}
		4115	break;
11806	schaersvoo	4116
		4117	case STRINGUP:
9213	schaersvoo	4118	/*
11806	schaersvoo	4119	@ stringup color,x,y,rotation_degrees,the text string
12000	schaersvoo	4120	@ can <b>not</b> be set "onclick" or "drag xy" (because of translation matrix...mouse incompatible)
11806	schaersvoo	4121	@ unicode supported: stringup red,0,0,45,\\u2232
		4122	@ use a command like 'fontfamily bold 34px Courier' <br />to set fonts on browser that support font change
12000	schaersvoo	4123	@ you could use keyword <a href='#yoffset'>yoffset</a> to -sometimes- do a small correction of text placement under/above a point<br />(e.g. text & point have thesame coordinates)
12311	schaersvoo	4124	@%stringup%size 400,400%xrange -10,10%yrange -10,10%fontfamily 14px Ariel%crosshair -3,0,red%crosshair 3,0,blue%stringup red,-3,0,-90,Hello World%stringup red,-3,0,-45,Hello World%stringup red,-3,0,45,Hello World%stringup red,-3,0,90,Hello World%stringup blue,3,0,-90,Hello World%stringup blue,3,0,-45,Hello World%stringup blue,3,0,45,Hello World%stringup blue,3,0,90,Hello World
11806	schaersvoo	4125
9213	schaersvoo	4126	*/
11806	schaersvoo	4127	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;} /* can not be added to shape library : rotate / mouse issues */
		4128	for(i=0;i<6;i++){
		4129	switch(i){
		4130	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		4131	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		4132	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		4133	case 3: double_data[0] = get_real(infile,0);break;/* rotation */
		4134	case 4: decimals = find_number_of_digits(precision);
		4135	temp = get_string_argument(infile,1);
11811	schaersvoo	4136	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,%s,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_affine,affine_matrix,use_offset);
11806	schaersvoo	4137	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11811	schaersvoo	4138	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,%.2f,\"%s\",%d,%.2f,%d,%s,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],font_size,font_family,font_color,stroke_opacity,double_data[0],temp,use_rotate,angle,use_affine,affine_matrix,use_offset);
11806	schaersvoo	4139	add_to_buffer(tmp_buffer);
14038	schaersvoo	4140	use_offset=0;
		4141	reset();
11806	schaersvoo	4142	break;
		4143	default:break;
		4144	}
9213	schaersvoo	4145	}
		4146	break;
11767	schaersvoo	4147
11806	schaersvoo	4148	case STYLE:
11767	schaersvoo	4149	/*
11806	schaersvoo	4150	@ highlight color,opacity,linewidth
		4151	@ NOT IMPLEMENTED
		4152	@ use command "onclick" : when the object receives a userclick it will increase its linewidth
11767	schaersvoo	4153	*/
		4154	break;
11806	schaersvoo	4155
		4156
		4157	case STROKECOLOR:
9213	schaersvoo	4158	/*
11806	schaersvoo	4159	@ strokecolor colorname or #hex
		4160	@ to be used for commands that do not supply a color argument (like command 'linegraph')
9213	schaersvoo	4161	*/
11806	schaersvoo	4162	stroke_color = get_color(infile,1);
9213	schaersvoo	4163	break;
11806	schaersvoo	4164
		4165	case FLY_TEXT:
9213	schaersvoo	4166	/*
11806	schaersvoo	4167	@ text fontcolor,x,y,font,text_string
		4168	@ font may be described by keywords : giant,huge,normal,small,tiny
		4169	@ use command 'fontsize' to increase base fontsize for these keywords
		4170	@ may be set "onclick" or "drag xy"
		4171	@ backwards compatible with flydraw
		4172	@ unicode supported: text red,0,0,huge,\\u2232
		4173	@ use command 'string' combined with 'fontfamily' for a more fine grained control over html5 canvas text element
14038	schaersvoo	4174	@ Avoid mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup'<br />If the fontfamily was set completely like "fontfamily italic 24px Ariel".<br />In that case reset 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
12311	schaersvoo	4175	@%text%size 400,400%xrange -10,10%yrange -10,10%fontsize 14%onclick%drag xy%text green,-4,-4,small,Hello World%drag xy%text red,-4,-2,large,Hello World%drag xy%text blue,-4,0,huge,Hello World%drag xy%text green,-4,3,giant,Hello World%drag xy
9213	schaersvoo	4176	*/
11806	schaersvoo	4177	for(i = 0; i < 5 ;i++){
		4178	switch(i){
		4179	case 0: stroke_color = get_color(infile,0);break;/* font_color == stroke_color name or hex color */
		4180	case 1: double_data[0] = get_real(infile,0);break; /* x */
		4181	case 2: double_data[1] = get_real(infile,0);break; /* y */
		4182	case 3: fly_font = get_string_argument(infile,0);
		4183	if(strcmp(fly_font,"giant") == 0){
		4184	fly_font_size = (int)(font_size + 24);
		4185	}
		4186	else
		4187	{
		4188	if(strcmp(fly_font,"huge") == 0){
		4189	fly_font_size = (int)(font_size + 14);
		4190	}
		4191	else
		4192	{
		4193	if(strcmp(fly_font,"large") == 0){
		4194	fly_font_size = (int)(font_size + 6);
		4195	}
		4196	else
		4197	{
		4198	if(strcmp(fly_font,"small") == 0){
		4199	fly_font_size = (int)(font_size - 4);
		4200	if(fly_font_size<0){fly_font_size = 8;}
		4201	}
		4202	}
		4203	}
		4204	}
		4205	break;
		4206	case 4:
		4207	temp = get_string_argument(infile,1);
		4208	decimals = find_number_of_digits(precision);
14045	schaersvoo	4209	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,14,[%.f],[%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%f,\"%s\",%d,%s,%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,0,0,0,0,use_rotate,angle,temp,fly_font_size,"null",use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	4210	if(onclick > 0){click_cnt++;}
14038	schaersvoo	4211	onclick=0;
		4212	use_offset = 0;
11806	schaersvoo	4213	reset();
		4214	break;
		4215	default:break;
		4216	}
10953	bpr	4217	}
9213	schaersvoo	4218	break;
11806	schaersvoo	4219	case TEXTAREA:
9289	schaersvoo	4220	/*
11806	schaersvoo	4221	@ textarea x,y,cols,rows,readonly,value
		4222	@ may be further controlled by <a href="#inputstyle">"inputstyle"</a>
14038	schaersvoo	4223	@ if "$status=done" (e.g. in answer.phtml) the inputfield will be cleared and set readonly<br />override this by keyword <a href="#status">'status'.</a>
11806	schaersvoo	4224	@ if mathml inputfields are present and / or some userdraw is performed, these data will <b>not</b> be send as well (javascript:read_canvas();)
		4225	@ keyword 'xoffset \| centered' is not active for commande 'textarea'
12107	schaersvoo	4226	@%textarea%size 400,400%xrange -10,10%yrange -10,10%inputstyle color:red;background-color:lightblue;font-size:14px;text-align:center%textarea -3,-2,6,3,1,?%inputstyle color:blue;background-color:yellow;font-size:14px;text-align:center%textarea 0,-2,8,2,1,?
9289	schaersvoo	4227	*/
11806	schaersvoo	4228	if( js_function[DRAW_TEXTAREAS] != 1 ){ js_function[DRAW_TEXTAREAS] = 1;}
		4229	for(i = 0 ; i<6;i++){
9289	schaersvoo	4230	switch(i){
11806	schaersvoo	4231	case 0: int_data[0]=x2px(get_real(infile,0));break; /* x in px */
		4232	case 1: int_data[1]=y2px(get_real(infile,0));break; /* y in px */
		4233	case 2: int_data[2]=abs( (int)(get_real(infile,0)));break;/* cols */
		4234	case 3: int_data[3]=abs( (int)(get_real(infile,0)));break;/* rows */
		4235	case 4: if( get_real(infile,1) >0){int_data[4] = 1;}else{int_data[3] = 0;};break; /* readonly */
		4236	case 5: temp = get_string_argument(infile,1);
		4237	string_length = snprintf(NULL,0, "draw_textareas(%d,%d,%d,%d,%d,%d,%d,\"%s\",\"%s\");\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],input_style,temp);
		4238	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		4239	snprintf(tmp_buffer,string_length,"draw_textareas(%d,%d,%d,%d,%d,%d,%d,\"%s\",\"%s\");\n",canvas_root_id,input_cnt,int_data[0],int_data[1],int_data[2],int_data[3],int_data[4],input_style,temp);
		4240	add_to_buffer(tmp_buffer);
		4241	input_cnt++;break;
9289	schaersvoo	4242	default: break;
		4243	}
		4244	}
11806	schaersvoo	4245	if(reply_format == 0 ){reply_format = 15;}
		4246	reset();
9289	schaersvoo	4247	break;
11806	schaersvoo	4248
11830	schaersvoo	4249	case TEXTFILL:
		4250	/*
		4251	@ textfill x0,y0,color,some_text
		4252	@ x0,y0 in xrange / yrange
		4253	@ color will be used for the font color
		4254	@ use command <a href="#fontfamily">fontfamily</a> to set font type and size
13829	bpr	4255	@ there is also a command <a href="#userdraw">userdraw textfill,color,some_text</a>
13951	schaersvoo	4256	@%textfill%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%fontfamily 24pt Ariel%circles red,0,0,3,3,3,6%textfill 4,4,blue,HELLO WORLD
11830	schaersvoo	4257	*/
		4258
		4259	js_function[DRAW_TEXTFILL] = 1;
		4260	if(js_function[DRAW_FILLTOBORDER] != 1 ){/* use only once */
		4261	js_function[DRAW_FILLTOBORDER] = 1;
		4262	add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);
		4263	}
		4264	decimals = find_number_of_digits(precision);
		4265	for(i=0;i<4;i++){
		4266	switch(i){
		4267	case 0: double_data[0] = get_real(infile,0); break; /* x in px */
		4268	case 1: double_data[1] = get_real(infile,0); break; /* y in py */
13829	bpr	4269	case 2: font_color = get_color(infile,0); break;
11830	schaersvoo	4270	case 3: temp = get_string(infile,1);
		4271	string_length = snprintf(NULL,0,"draw_textfill(%d,%.f,%.f,'%s','%s',%d,%d,'%s',false); ",FILL_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],font_color,font_family,xsize,ysize,temp);
		4272	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
		4273	snprintf(tmp_buffer,string_length,"draw_textfill(%d,%.f,%.f,'%s','%s',%d,%d,'%s',false); ",FILL_CANVAS+fill_cnt,decimals,double_data[0],decimals,double_data[1],font_color,font_family,xsize,ysize,temp);
		4274	add_to_buffer(tmp_buffer);
		4275	fill_cnt++;
		4276	break;
		4277	default:break;
		4278	}
		4279	}
		4280	reset();
		4281	break;
		4282
		4283
11806	schaersvoo	4284	case FLY_TEXTUP:
9289	schaersvoo	4285	/*
11806	schaersvoo	4286	@ textup fontcolor,x,y,font,text_string
		4287	@ can <b>not</b> be set "onclick" or "drag xy" (because of translaton matrix...mouse incompatible)
		4288	@ font may be described by keywords : giant,huge,normal,small,tiny
		4289	@ use command 'fontsize' to increase base fontsize for the keywords
		4290	@ backwards compatible with flydraw
		4291	@ unicode supported: textup red,0,0,huge,\\u2232
		4292	@ use command 'stringup' and 'fontfamily' for a more fine grained control over html5 canvas text element
14038	schaersvoo	4293	@ Avoid mixing old flydraw commands 'text' 'textup' with new canvasdraw commands 'string' stringup'<br />If the fontfamily was set completely like "fontfamily italic 24px Ariel".<br />In that case reset 'fontfamily' to something lke 'fontfamily Ariel' before the old flydraw commands.
9289	schaersvoo	4294	*/
11806	schaersvoo	4295	if( js_function[DRAW_TEXTS] != 1 ){ js_function[DRAW_TEXTS] = 1;}
		4296	for(i = 0; i<5 ;i++){
9289	schaersvoo	4297	switch(i){
11806	schaersvoo	4298	case 0: font_color = get_color(infile,0);break;/* name or hex color */
		4299	case 1: int_data[0] = x2px(get_real(infile,0));break; /* x */
		4300	case 2: int_data[1] = y2px(get_real(infile,0));break; /* y */
		4301	case 3: fly_font = get_string_argument(infile,0);
		4302	if(strcmp(fly_font,"giant") == 0){
		4303	fly_font_size = (int)(font_size + 24);
		4304	}
		4305	else
		4306	{
		4307	if(strcmp(fly_font,"huge") == 0){
		4308	fly_font_size = (int)(font_size + 14);
		4309	}
		4310	else
		4311	{
		4312	if(strcmp(fly_font,"large") == 0){
		4313	fly_font_size = (int)(font_size + 6);
		4314	}
		4315	else
		4316	{
		4317	if(strcmp(fly_font,"small") == 0){
		4318	fly_font_size = (int)(font_size - 4);
		4319	if(fly_font_size<0){fly_font_size = 8;}
		4320	}
		4321	}
		4322	}
		4323	}
		4324	break;
		4325	case 4:
9289	schaersvoo	4326	decimals = find_number_of_digits(precision);
11806	schaersvoo	4327	temp = get_string_argument(infile,1);
11811	schaersvoo	4328	string_length = snprintf(NULL,0,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,%s,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],fly_font_size,"null",font_color,stroke_opacity,temp,use_rotate,angle,use_affine,affine_matrix,use_offset);
9289	schaersvoo	4329	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11811	schaersvoo	4330	snprintf(tmp_buffer,string_length,"draw_text(%d,%d,%d,%d,\"%s\",\"%s\",%.2f,90,\"%s\",%d,%.2f,%d,%s,%d);\n",STATIC_CANVAS,int_data[0],int_data[1],fly_font_size,"null",font_color,stroke_opacity,temp,use_rotate,angle,use_affine,affine_matrix,use_offset);
9289	schaersvoo	4331	add_to_buffer(tmp_buffer);
14038	schaersvoo	4332	reset();use_offset = 0;
9289	schaersvoo	4333	break;
11806	schaersvoo	4334	default:break;
		4335	}
		4336	}
		4337	break;
		4338
		4339
		4340	case TRACE_JSCURVE:
		4341	/*
		4342	@ trace_jscurve some_math_function
		4343	@ will use a crosshair to trace the jsmath curve
		4344	@ two inputfields will display the current x/y-values (numerical evaluation by javascript)
		4345	@ default labels 'x' and 'y'<br />use commands 'xlabel some_x_axis_name' and 'ylabel some_y_axis_name' to customize the labels for the input fields
		4346	@ use commands fontsize and inputstyle to format the fonts for labels and inputfields.
		4347	@ use commands linewidth,strokecolor,crosshairsize to adjust the corsshair.
		4348	@ the client browser will convert your math function to javascript math.<br />use parenthesis and rawmath : use 2*x instead of 2x etc etc<br />no check is done on the validity of your function and/or syntax<br />use error console to debug any errors...
13948	schaersvoo	4349	@ be aware that the formula's of the plotted function(s) can be found in the page javascript source
13959	bpr	4350	@%trace_jscurve%size 400,400%xrange -10,10%yrange -10,10%precision 0%axis%axisnumbering%grid 2,2,grey,2,2,5,gray%recision 100%inputstyle color:blue;%linewidth 4%crosshairsize 8%trace_jscurve 5sin(0.1x^2)%linewidth 1%jsplot red,5sin(0.1x^2)%#only one curve can be traced
11806	schaersvoo	4351	*/
		4352	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
		4353	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		4354	if( use_js_math == FALSE){
		4355	add_to_js_math(js_include_file);
		4356	use_js_math = TRUE;
		4357	}
		4358	add_trace_js_mouse(js_include_file,TRACE_CANVAS,canvas_root_id,stroke_color,get_string(infile,1),font_size,stroke_opacity,line_width,crosshair_size,input_style);
		4359	break;
		4360
		4361
		4362	case TRANGE:
		4363	/*
		4364	@ trange tmin,tmax
		4365	@ alternative : ranget
		4366	@ default -2,2
		4367	*/
		4368	use_parametric = TRUE;
		4369	for(i = 0 ; i<2; i++){
		4370	switch(i){
		4371	case 0: tmin = get_real(infile,0);break;
		4372	case 1: tmax = get_real(infile,1);break;
9289	schaersvoo	4373	default: break;
		4374	}
		4375	}
11806	schaersvoo	4376	if(tmin >= tmax ){canvas_error(" trange is not OK : tmin < tmax!\n");}
9289	schaersvoo	4377	break;
11806	schaersvoo	4378	case TRANSLATION:
		4379	/*
		4380	@ translation tx,ty
		4381	@ alternative : translate
		4382	@ will translate the next objects tx in xrange and ty in yrange
		4383	@ use command 'killtranstation' to end the command
13958	schaersvoo	4384	@%translation%size 400,400%xrange -10,10%yrange -10,10%linewidth 1%fillpattern grid%ftriangle -6,6,8,6,5,1,blue%translation 2,2%ftriangle -6,6,8,6,5,1,red
11806	schaersvoo	4385	*/
		4386	for(i = 0 ; i<2;i++){
		4387	switch(i){
		4388	case 0: double_data[0] = get_real(infile,0);break;
		4389	case 1: double_data[1] = get_real(infile,1);
		4390	use_affine = TRUE;
		4391	decimals = find_number_of_digits(precision);
		4392	string_length = snprintf(NULL,0, "[1,0,0,1,%.f,%.f] ",decimals,double_data[0]xsize/(xmax - xmin),decimals,-1double_data[1]*ysize/(ymax - ymin));
		4393	check_string_length(string_length);affine_matrix = my_newmem(string_length+1);
		4394	snprintf(affine_matrix,string_length,"[1,0,0,1,%.f,%.f] ",decimals,double_data[0]xsize/(xmax - xmin),decimals,-1double_data[1]*ysize/(ymax - ymin));
		4395	break;
		4396	default: break;
		4397	}
		4398	}
		4399	break;
		4400
		4401	case TRIANGLE:
		4402	/*
		4403	@ triangle x1,y1,x2,y2,x3,y3,color
		4404	@ use ftriangle or keyword <a href='#filled'>'filled'</a> for a solid triangle
		4405	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
13948	schaersvoo	4406	@%triangle%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%opacity 250,150%drag xy%triangle 0,0,-4,4,6,8,red%drag xy%ftriangle 0,0,-4,-4,6,-8,red%fillpattern grid%drag xy%ftriangle -6,6,8,6,5,1,blue
11806	schaersvoo	4407	*/
		4408	for(i=0;i<7;i++){
		4409	switch(i){
		4410	case 0: double_data[0] = get_real(infile,0);break; /* x */
		4411	case 1: double_data[1] = get_real(infile,0);break; /* y */
		4412	case 2: double_data[2] = get_real(infile,0);break; /* x */
		4413	case 3: double_data[3] = get_real(infile,0);break; /* y */
		4414	case 4: double_data[4] = get_real(infile,0);break; /* x */
		4415	case 5: double_data[5] = get_real(infile,0);break; /* y */
		4416	case 6: stroke_color = get_color(infile,1);/* name or hex color */
		4417	decimals = find_number_of_digits(precision);
14045	schaersvoo	4418	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,5,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,double_xy2js_array(double_data,6,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	4419	if(onclick > 0){click_cnt++;}
		4420	/* click_cnt++;*/
		4421	reset();
		4422	break;
		4423	default: break;
		4424	}
		4425	}
		4426	break;
		4427	case TRIANGLES:
		4428	/*
		4429	@ triangles color,x1,y1,x2,y2,x3,y3,...
		4430	@ use ftriangles or keyword <a href='#filled'>'filled'</a> for solid triangles
		4431	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
13948	schaersvoo	4432	@%triangles%size 400,400%xrange -10,10%yrange -10,10%linewidth 3%onclick%triangles red,0,0,-4,4,6,8,0,0,-4,-4,6,-8,-6,6,8,6,5,1%# the same as 3 calls to command triangle
11806	schaersvoo	4433	*/
		4434	stroke_color = get_color(infile,0);/* name or hex color */
		4435	i = 0;
		4436	decimals = find_number_of_digits(precision);
		4437	while( ! done ){
11997	schaersvoo	4438	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
11806	schaersvoo	4439	double_data[0] = get_real(infile,0); /* x1 */
		4440	double_data[1] = get_real(infile,0); /* y1 */
		4441	double_data[2] = get_real(infile,0); /* x2 */
		4442	double_data[3] = get_real(infile,0); /* y2 */
		4443	double_data[4] = get_real(infile,0); /* x3 */
		4444	double_data[5] = get_real(infile,1); /* y3 */
14045	schaersvoo	4445	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,5,%s,[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,double_xy2js_array(double_data,6,decimals),line_width,stroke_color,stroke_opacity,stroke_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	4446	if(onclick > 0){click_cnt++;}
		4447	i = i + 6;
		4448	}
		4449	reset();
		4450	break;
		4451	case USERBOXPLOT:
		4452	/*
		4453	@ userboxplot
		4454	@ keyword, no arguments
		4455	@ use before command <a href="#boxplot">'boxplot x_or_y,box-height_or_box-width,x_or_y-position'</a>
		4456	@ if set, the student will have to calculate "min,Q1,median,Q3,max" and feed these data into the 'draw_boxplot' function
		4457	@ for example:<br />put the canvas-script into a html element with id='boxplot'and set style='display:none'<br />define a variable called 'student_boxplot' and fill it with the 5 student-data (from inputfields or something)<br />var student_boxplot = new Array(5)<br />function show_boxplot(){<br />student_boxplot[0] = min;<br />student_boxplot[1] = Q1;<br />student_boxplot[2] = median;<br />student_boxplot[3] = Q3;<br />student_boxplot[4] = max;<br />document.getElementById('boxplot').style.display = "block";<br />draw_boxplot(12345,1,2.00,5.00,[0,0,0,0,0],4,"0,0,255",0.78,"255,165,0",0.60,1,0,1,1);<br />};<br />In the canvas-script the function draw_boxplot has the following arguments:<br />draw_boxplot=function(canvas_type,xy,hw,cxy,data,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1)
		4458	*/
		4459	if( js_function[DRAW_BOXPLOT] != 1 ){ js_function[DRAW_BOXPLOT] = 1;}
		4460	fprintf(js_include_file,"var boxplot_source = 3;\n");
		4461	js_function[DRAW_JSBOXPLOT] = 2;
		4462	break;
		4463
		4464	case USERBOXPLOTDATA:
		4465	/*
		4466	@ userboxplotdata
		4467	@ keyword, no arguments
		4468	@ use before command <a href="#boxplot">'boxplot x_or_y,box-height_or_box-width,x_or_y-position'</a>
		4469	@ if set, the student will have to generate some statistical data. These data should be put in a named array "student_boxplot_data"
		4470	@ "min,Q1,median,Q3,max" are calculated by a js-function and the 'draw_boxplot' function will draw a boxplot.
		4471	@ see command <a href="#userboxplot">'userboxplot'</a> for calling 'draw_boxplot()'
		4472	*/
		4473	if( js_function[DRAW_BOXPLOT] != 1 ){ js_function[DRAW_BOXPLOT] = 1;}
		4474	fprintf(js_include_file,"var boxplot_source = 2;\n");
		4475	js_function[DRAW_JSBOXPLOT] = 1;
		4476
		4477	break;
		4478
7614	schaersvoo	4479	case USERDRAW:
		4480	/*
		4481	@ userdraw object_type,color
9213	schaersvoo	4482	@ only a single object_type is allowed.
14044	schaersvoo	4483	@ for multiple different 'userdraw' objects in an exercise, use command <a href="#multidraw">'multidraw'</a>
14038	schaersvoo	4484	@ implemented object_type: <ul><li>point</li><li>points</li><li>crosshair</li><li>crosshairs</li><li>line</li><li>lines</li><li>vline</li><li>vlines</li><li>hline</li><li>hlines</li><li>demiline</li><li>demilines</li><li>segment</li><li>segments</li><li>polyline \| brokenline </li><li>circle</li><li>circles</li><li>arrow</li><li>arrow2 (double arrow)</li><li>arrows</li><li>arrows2 (double arrows)</li><li>curvedarrow</li><li>curvedarrows</li><li>curvedarrow2</li><li>curvedarrows2</li><li>triangle</li><li>polygon</li><li>poly[3-9] (e.g poly3 ... poly7...poly9 </li><li>rect</li><li>roundrect</li><li>rects</li><li>roundrects</li><li>freehandline \| path</li><li>freehandlines \| paths</li><li>clickfill : fill the clicked area with color<br />multiple areas may be selected <br />multiple colors may be provided using commands <a href='#colorpalette'>colorpalette color1,color2,color3,...</a> or <a href='#multifillcolors'>multifillcolors color1,color2,color_3,...</a> use <a href='#replyformat'>replyformat 10</a> for checking the user click color ... reply=x1:y1:color1,x2:y2:color2...<br/>attention: this will <b>not</b> work for pattern filling, because the pattern image is only generated once and after creation can not be changed !<br />the opacity of this image on a separate canvas is set to 0.01 and not 0 (!!)...in the 'fill algorithm' the opacity of the matching pixels is set to 1</li><li>dotfill : fill the clicked area with a dot pattern; use command linewidth to change dot size</li><li>diamondfill : fill the clicked area with a diamond pattern</li><li>hatchfill : fill the clicked area with a hatch pattern</li><li>gridfill : fill the clicked area with a grid pattern</li><li>textfill: fill the clicked area with a repeating string<br />userdraw textfill,blue,some_text<br />use command <a href="#fontfamily">fontfamily</a> to adjust text style and size</li><li>'clickfill \| pattern filling' in general:<br />the clicks may be set <a href="#snaptogrid">'snaptogrid'</a><br />can be used together with command <a href="#floodfill">'floodfill' or 'fill'</a><br /><b>always</b> use together with command <a href="#clearbutton">'clearbutton some_text'</a> for removal of all click_colored areas<br />the function read_canvas() will return the click coordinates in the sequence of the user clicks<br />use command <a href="#canvastype">'canvastype'</a> to fill another canvas (default should be fine: DRAG_CANVAS = 5)</li><li>text</li><li>arc</li><li>arcs</li><li>input<br/>place a single inputfield on 'canvas'<br />use commands 'inputstyle' for css styling: use command 'linewidth' for adjusting the input field size (default 1)</li><li>inputs<br/>place multiple inputfield : placing inputfields on top of each other is not possible</li></ul>
13948	schaersvoo	4485	@ note: mouselisteners are only active if "$status != done " (eg only drawing in an active/non-finished exercise) <br /> to overrule use command/keyword "status" (no arguments required)
13951	schaersvoo	4486	@ note: object_type text: Any string or multiple strings may be placed anywhere on the canvas.<br />"backspace / delete / esc" will remove typed text if the mouse is clicked on the text.<br />You will need to hit "enter" to add the text to the array "userdraw_txt"<br />Placing the cursor somewhere on a typed text and hitting "delete/backspace/esc" , a confirm will popup asking to delete the selected text. This text will be removed from the "userdraw_txt()" answer array.<br />Use commands 'fontsize' and 'fontfamily' to control the text appearance
11088	schaersvoo	4487	@ note: object_type polygone: Will be finished (the object is closed) when clicked on the first point of the polygone again.
		4488	@ note: all objects will be removed -after a javascript confirm box- when clicked on an object point with middle or right mouse button (e.g. event.which != 1 : all buttons but left)
13956	schaersvoo	4489	@ use a prefix <a href='#filled'>'filled'</a> or 'f' to set fillable objects filled. (fcircles,filledcircles etc)
11839	schaersvoo	4490	@ for non solid filling, use command <a href="#fillpattern">fillpattern grid,hatch,diamond,dot</a>
14038	schaersvoo	4491	@ use <a href='#opacity'>"opacity int,int"</a> and <a href='#fillcolor'>"fillcolor color"</a> to trigger coloured filling of fillable objects
8224	bpr	4492	@ use command "dashed" and/or "dashtype int,int" to trigger dashing
13951	schaersvoo	4493	@ use command "replyformat int" to control / adjust output formatting of javascript function read_canvas(); (the defaults should be fine...)
14038	schaersvoo	4494	@ may be combined with onclick or drag xy of other components of flyscript objects (although not very useful...)
13956	schaersvoo	4495	@ may be combined with keyword <a href='#userinput_xy'>'userinput_xy'</a>
14044	schaersvoo	4496	@ may be combined width the <a href='#snaptogrid'>snaptogrid snaptopoints </a> etc, to simplify the checking of the student reply
13956	schaersvoo	4497	@ the cursor may be appropriately styled using command <a href='cursor'>cursor</a>
11088	schaersvoo	4498	@ note: when zooming / panning after a drawing, the drawing will NOT be zoomed / panned...this is a "design" flaw and not a feature <br />To avoid trouble do not use zooming / panning together width userdraw.!<br />use command <a href="#multidraw">multidraw</a> is this is a problem for you...
14044	schaersvoo	4499	@ note:the default replyformat for 'userdraw input(s),color' used format x1;y1;text1 \n x2;y2;test2 \n x_n;y_n;text_n (e.g. it is not a comma separated array...use 'direct exec' to test)
14038	schaersvoo	4500	@ note: a special case is 'userdraw images,boguscolor'.<br />Images (bitmap or svg) present in the exercise page and the img-tag with an unique 'id' and onclick='javascript:place_image_on_canvas(this.id)' can be placed onto the canvas.<br />The 'id' and (x;y) coordinates will be returned using read_canvas();<br /> On Gecko browsers there is an option to include MathML from the page onto the canvas, when the MathML code is embedded in a foreignObject,a div and an svg with size 1px , like in:<br /> <svg xmlns="http://www.w3.org/2000/svg" width="1px" height="1px" onclick="javascript:place_image_on_canvas(this.id);" id='my_id'><br /><foreignObject width="100%" height="100%"><br /><div xmlns="http://www.w3.org/1999/xhtml" style="display:inline-block;width:auto;text-align: center;" > MATHML </div><br /></foreignObject><br /></svg><br />To resize and used the svg element, a small piece of javascript is needed...<br />function resize_svg_mathml( mythings ){<br /> var len = mythings.length;<br />for(var p=0; p< len; p=p+2){<br /> var svg = document.getElementById(mythings[p]);<br />var div = document.getElementById(mythings[p+1]);<br />var w = parseInt(getComputedStyle(div).width);<br />var h = parseInt(getComputedStyle(div).height);<br />svg.setAttribute("height", h+'px');<br />svg.setAttribute("width", w+'px');<br />};<br />};<br /><br /> var mythings = [ array_with_image_id's ];<br />resize_svg_mathml(mythings);
12107	schaersvoo	4501	@%userdraw_canvastype_a%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%snaptogrid%replyformat 10%colorpalette orange,yellow,red,green,lightgreen,blue,lightblue,cyan%canvastype 4%userdraw clickfill,blue%clearbutton REMOVE LAST RECTANGLE
		4502	@%userdraw_canvastype_b%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%canvastype 4%snaptogrid%replyformat 10%userdraw dotfill,blue%clearbutton REMOVE LAST RECTANGLE
		4503	@%userdraw_rect%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw rect,green
		4504	@%userdraw_rects%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw rects,green
		4505	@%userdraw_frect%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw frect,green
		4506	@%userdraw_frects%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw frects,green
		4507	@%userdraw_roundrect%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw roundrect,green
		4508	@%userdraw_roundrects%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw roundrects,green
		4509	@%userdraw_froundrect%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw froundrect,green
		4510	@%userdraw_froundrects%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw froundrects,green
		4511	@%userdraw_line%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw line,green
		4512	@%userdraw_lines%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw lines,green
		4513	@%userdraw_vline%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw vline,green
		4514	@%userdraw_vlines%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw vlines,green
		4515	@%userdraw_hline%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw hline,green
		4516	@%userdraw_hlines%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw hlines,green
		4517	@%userdraw_demiline%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw demiline,green
		4518	@%userdraw_demilines%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw demilines,green
		4519	@%userdraw_arc%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw arc,green
		4520	@%userdraw_arcs%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw arcs,green
		4521	@%userdraw_point%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw point,green
		4522	@%userdraw_points%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw points,green
		4523	@%userdraw_arrow%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw arrow,green
		4524	@%userdraw_arrows%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw arrows,green
		4525	@%userdraw_arrow2%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw arrow2,green
		4526	@%userdraw_arrows2%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw arrows2,green
14025	schaersvoo	4527	@%userdraw_curvedarrow%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 1%grid 2,2,grey,2,2,5,grey%precision 1%linewidth 3%userdraw curvedarrow,red%clearbutton REMOVE ALL ARROWS
		4528	@%userdraw_curvedarrows%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 1%grid 2,2,grey,2,2,5,grey%precision 1%linewidth 3%userdraw curvedarrows,red%clearbutton REMOVE ALL ARROWS
14038	schaersvoo	4529	@%userdraw_curvedarrow2%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 1%grid 2,2,grey,2,2,5,grey%precision 1%linewidth 3%userdraw curvedarrow2,red%clearbutton REMOVE ALL ARROWS
		4530	@%userdraw_curvedarrows2%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 1%grid 2,2,grey,2,2,5,grey%precision 1%linewidth 3%userdraw curvedarrows2,red%clearbutton REMOVE ALL ARROWS
12107	schaersvoo	4531	@%userdraw_crosshair%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw crosshair,green
		4532	@%userdraw_crosshairs%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw crosshairs,green
		4533	@%userdraw_circle%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw circle,green
		4534	@%userdraw_circles%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw circles,green
		4535	@%userdraw_segment%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw segment,green
		4536	@%userdraw_segments%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw segments,green
		4537	@%userdraw_line%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw line,green
		4538	@%userdraw_lines%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw lines,green
		4539	@%userdraw_triangle%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw triangle,green
		4540	@%userdraw_poly5%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw poly5,green
		4541	@%userdraw_filled_poly5%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%filled%userdraw poly5,green
		4542	@%userdraw_poly7%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw poly7,green
		4543	@%userdraw_filled_poly7%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%filled%userdraw poly7,green
		4544	@%userdraw_polyline%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%userdraw polyline,green
		4545	@%userdraw_freehandline%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw freehandline,green
		4546	@%userdraw_filled_freehandline%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%fillcolor orange%opacity 200,50%filled%userdraw freehandline,green
		4547	@%userdraw_freehandlines%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%opacity 200,50%userdraw freehandlines,green
		4548	@%userdraw_input%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%userdraw input,green
		4549	@%userdraw_inputs%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%userdraw inputs,green
		4550	@%userdraw_text%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%fontfamily 42px Courier%userdraw text,green
14044	schaersvoo	4551	@%userdraw_clickfill_colorpalette%size 400,400%xrange -10,10%yrange -10,10%linewidth 3%circles blue,0,0,4,1,1,6,3,3,3,-3,-3,5%opacity 255,120%colorpalette red,green,yellow,blue%userdraw clickfill,green
13948	schaersvoo	4552	@%userdraw_clickfill_1%size 400,400%xrange -10,10%yrange -10,10%linewidth 3%circles blue,0,0,4,1,1,6,3,3,3,-3,-3,5%opacity 255,120%userdraw clickfill,green
		4553	@%userdraw_clickfill_2%size 400,400%xrange -10,10%yrange -10,10%linewidth 1%circles blue,0,0,2,1,1,5,5,5,4,-5,5,6,5,-5,6%userdraw hatchfill,red%#userdraw dotfill,red%#userdraw diamonefill,red%#userdraw gridfill,red
		4554	@%userdraw_clickfill_2%size 400,400%xrange -10,10%yrange -10,10%bgcolor white%# to get nice click coordinates take invisible'grid' and use 'snaptogrid'%grid 1,1,white%snaptogrid%circles blue,0,0,2,1,1,5,5,5,4,-5,5,6,5,-5,6%userdraw gridfill,red
7614	schaersvoo	4555	*/
		4556	if( use_userdraw == TRUE ){ /* only one object type may be drawn*/
14038	schaersvoo	4557	canvas_error("Only one userdraw primitive may be used in command 'userdraw' use command 'multidraw' for this...");
7614	schaersvoo	4558	}
8074	schaersvoo	4559	reply_precision = precision;
7614	schaersvoo	4560	use_userdraw = TRUE;
13970	obado	4561	fprintf(js_include_file,"\n/* begin userdraw mouse events */\n\
11839	schaersvoo	4562	userdraw_x = new Array();userdraw_y = new Array();\
11041	schaersvoo	4563	userdraw_radius = new Array();var xy_cnt=0;var canvas_userdraw = create_canvas%d(%d,xsize,ysize);\
11001	schaersvoo	4564	var context_userdraw = canvas_userdraw.getContext(\"2d\");var use_dashed = %d;\
		4565	if(use_dashed == 1){if( context_userdraw.setLineDash ){context_userdraw.setLineDash([%d,%d]);}else{if(context_userdraw.mozDash){context_userdraw.mozDash = [%d,%d];};};};\
		4566	if(wims_status != \"done\"){\
14038	schaersvoo	4567	canvas_div.addEventListener(\"mousedown\" ,user_draw,false);\
		4568	canvas_div.addEventListener(\"mousemove\" ,user_drag,false);\
		4569	canvas_div.addEventListener(\"touchstart\",function(e){ e.preventDefault();user_draw(e.changedTouches[0]);},false);\
		4570	canvas_div.addEventListener(\"touchmove\" ,function(e){ e.preventDefault();user_drag(e.changedTouches[0]);},false);\
		4571	canvas_div.addEventListener(\"touchend\" ,function(e){ e.preventDefault();user_draw(e.changedTouches[0]);},false);\
14044	schaersvoo	4572	}\n/* end userdraw mouse & touch events */",canvas_root_id,DRAW_CANVAS,use_dashed,dashtype[0],dashtype[1],dashtype[0],dashtype[1]);
7614	schaersvoo	4573	draw_type = get_string_argument(infile,0);
		4574	stroke_color = get_color(infile,1);
		4575	if( strcmp(draw_type,"point") == 0 ){
		4576	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	4577	if(reply_format == 0 ){reply_format = 8;}
7614	schaersvoo	4578	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
12006	schaersvoo	4579	/*
13829	bpr	4580	type = 0 : a point ...radius is fixed
		4581	type = 1 : a circle ... read inputfield userinput_r
		4582	num = 1 : a single point / circle
12006	schaersvoo	4583	num = 2 : multiple points / circles
		4584	*/
8071	schaersvoo	4585	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4586	if(use_input_xy == 1){
12006	schaersvoo	4587	add_input_circle(js_include_file,0,1);
8815	schaersvoo	4588	add_input_xy(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	4589	}
14044	schaersvoo	4590	add_js_points(js_include_file,1,draw_type,line_width,line_width,stroke_color,stroke_opacity,1,stroke_color,stroke_opacity,0,1,1,use_snap);
7614	schaersvoo	4591	}
		4592	else
		4593	if( strcmp(draw_type,"points") == 0 ){
		4594	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	4595	if(reply_format == 0 ){reply_format = 8;}
7614	schaersvoo	4596	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
8071	schaersvoo	4597	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4598	if(use_input_xy == 1){
12006	schaersvoo	4599	add_input_circle(js_include_file,0,2);
8815	schaersvoo	4600	add_input_xy(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	4601	}
14044	schaersvoo	4602	add_js_points(js_include_file,2,draw_type,line_width,line_width,stroke_color,stroke_opacity,1,stroke_color,stroke_opacity,0,1,1,use_snap);
7614	schaersvoo	4603	}
		4604	else
		4605	if( strcmp(draw_type,"segment") == 0 ){
		4606	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4607	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
7876	schaersvoo	4608	if(reply_format == 0){reply_format = 11;}
8071	schaersvoo	4609	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4610	if(use_input_xy == 1){
7652	schaersvoo	4611	add_input_segment(js_include_file,1);
8815	schaersvoo	4612	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	4613	}
14044	schaersvoo	4614	add_js_segments(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7614	schaersvoo	4615	}
		4616	else
10975	schaersvoo	4617	if( strcmp(draw_type,"polyline") == 0 \|\| strcmp(draw_type,"brokenline") == 0 ){
7663	schaersvoo	4618	if( js_function[DRAW_POLYLINE] != 1 ){ js_function[DRAW_POLYLINE] = 1;}
7876	schaersvoo	4619	if(reply_format == 0){reply_format = 23;}
8071	schaersvoo	4620	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7780	schaersvoo	4621	if( use_input_xy == 1 ){
		4622	add_input_polyline(js_include_file);
8815	schaersvoo	4623	add_input_xy(js_include_file,canvas_root_id,font_size,input_style);
7663	schaersvoo	4624	}
14044	schaersvoo	4625	add_js_polyline(js_include_file,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7663	schaersvoo	4626	}
		4627	else
7614	schaersvoo	4628	if( strcmp(draw_type,"segments") == 0 ){
		4629	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4630	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
7876	schaersvoo	4631	if(reply_format == 0){reply_format = 11;}
8071	schaersvoo	4632	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4633	if(use_input_xy == 1){
7652	schaersvoo	4634	add_input_segment(js_include_file,2);
8815	schaersvoo	4635	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	4636	}
14044	schaersvoo	4637	add_js_segments(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7614	schaersvoo	4638	}
		4639	else
11839	schaersvoo	4640	if( strcmp(draw_type,"circle") == 0 \|\| strcmp(draw_type,"fcircle") == 0 \|\| strcmp(draw_type,"filledcircle") == 0 ){
7614	schaersvoo	4641	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	4642	if(reply_format == 0){reply_format = 10;}
11875	schaersvoo	4643	if(strstr(draw_type,"f") != NULL ){if( use_pattern != 0 ){ use_filled = use_pattern;}else{use_filled = 1;}}
7614	schaersvoo	4644	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
8071	schaersvoo	4645	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4646	if(use_input_xy == 1){
12006	schaersvoo	4647	/*
13829	bpr	4648	type = 0 : a point ...radius is fixed
		4649	type = 1 : a circle ... read inputfield userinput_r
		4650	num = 1 : a single point / circle
12006	schaersvoo	4651	num = 2 : multiple points / circles
		4652	*/
		4653	add_input_circle(js_include_file,1,1);
8815	schaersvoo	4654	add_input_xyr(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	4655	}
14044	schaersvoo	4656	add_js_circles(js_include_file,1,draw_type,line_width,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7614	schaersvoo	4657	}
		4658	else
11839	schaersvoo	4659	if( strcmp(draw_type,"circles") == 0 \|\| strcmp(draw_type,"fcircles") == 0 \|\| strcmp(draw_type,"filledcircles") == 0 ){
7614	schaersvoo	4660	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
7876	schaersvoo	4661	if(reply_format == 0){reply_format = 10;}
11839	schaersvoo	4662	if(strstr(draw_type,"f") != NULL ){if( use_pattern != 0 ){ use_filled = use_pattern;}else{use_filled =1;}}
7614	schaersvoo	4663	/* 9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n in x/y-range */
14044	schaersvoo	4664	add_js_circles(js_include_file,2,draw_type,line_width,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
8071	schaersvoo	4665	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4666	if(use_input_xy == 1){
12006	schaersvoo	4667	add_input_circle(js_include_file,1,2);
8815	schaersvoo	4668	add_input_xyr(js_include_file,canvas_root_id,font_size,input_style);
7652	schaersvoo	4669	}
7614	schaersvoo	4670	}
		4671	else
		4672	if(strcmp(draw_type,"crosshair") == 0 ){
		4673	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7876	schaersvoo	4674	if(reply_format == 0){reply_format = 8;}
7614	schaersvoo	4675	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
14044	schaersvoo	4676	add_js_crosshairs(js_include_file,1,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity,use_snap);
8071	schaersvoo	4677	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4678	if(use_input_xy == 1){
7654	schaersvoo	4679	add_input_crosshair(js_include_file,1);
8815	schaersvoo	4680	add_input_xy(js_include_file,canvas_root_id,font_size,input_style);
7654	schaersvoo	4681	}
7614	schaersvoo	4682	}
		4683	else
		4684	if(strcmp(draw_type,"crosshairs") == 0 ){
		4685	if( js_function[DRAW_CROSSHAIRS] != 1 ){ js_function[DRAW_CROSSHAIRS] = 1;}
7876	schaersvoo	4686	if(reply_format == 0){reply_format = 8;}
7614	schaersvoo	4687	/* 7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n in x/y-range */
14044	schaersvoo	4688	add_js_crosshairs(js_include_file,2,draw_type,line_width,crosshair_size ,stroke_color,stroke_opacity,use_snap);
8071	schaersvoo	4689	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
8224	bpr	4690	if(use_input_xy == 1){
7654	schaersvoo	4691	add_input_crosshair(js_include_file,2);
8815	schaersvoo	4692	add_input_xy(js_include_file,canvas_root_id,font_size,input_style);
7654	schaersvoo	4693	}
7614	schaersvoo	4694	}
		4695	else
		4696	if(strcmp(draw_type,"freehandline") == 0 ){
		4697	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	4698	if(reply_format == 0){reply_format = 6;}
14044	schaersvoo	4699	add_js_paths(js_include_file,1,draw_type,line_width,0,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7652	schaersvoo	4700	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4701	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4702	}
		4703	else
		4704	if(strcmp(draw_type,"freehandlines") == 0 ){
		4705	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	4706	if(reply_format == 0){reply_format = 6;}
14044	schaersvoo	4707	add_js_paths(js_include_file,2,draw_type,line_width,0,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7652	schaersvoo	4708	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4709	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4710	}
		4711	else
11839	schaersvoo	4712	if(strcmp(draw_type,"path") == 0 \|\| strcmp(draw_type,"fpath") == 0 \|\| strcmp(draw_type,"filledpath") == 0 ){
7614	schaersvoo	4713	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
13829	bpr	4714	if( strstr(draw_type,"f") != NULL ){if( use_pattern != 0 ){ use_filled = use_pattern;}else{use_filled =1;}}
7876	schaersvoo	4715	if(reply_format == 0){reply_format = 6;}
14044	schaersvoo	4716	add_js_paths(js_include_file,1,draw_type,line_width,1,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7652	schaersvoo	4717	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4718	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4719	}
		4720	else
11839	schaersvoo	4721	if(strcmp(draw_type,"paths") == 0 \|\| strcmp(draw_type,"fpaths") == 0 \|\| strcmp(draw_type,"filledpaths") == 0 ){
7614	schaersvoo	4722	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
13829	bpr	4723	if( strstr(draw_type,"f") != NULL ){if( use_pattern != 0 ){ use_filled = use_pattern;}else{use_filled =1;}}
7876	schaersvoo	4724	if(reply_format == 0){reply_format = 6;}
14044	schaersvoo	4725	add_js_paths(js_include_file,2,draw_type,line_width,1,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7652	schaersvoo	4726	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4727	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4728	}
		4729	else
		4730	if(strcmp(draw_type,"arrows") == 0 ){
		4731	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	4732	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4733	add_js_arrows(js_include_file,2,draw_type,line_width,1,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head,use_snap);
8224	bpr	4734	if(use_input_xy == 1){
7654	schaersvoo	4735	add_input_arrow(js_include_file,2);
8815	schaersvoo	4736	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7654	schaersvoo	4737	}
8071	schaersvoo	4738	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4739	}
		4740	else
7874	schaersvoo	4741	if(strcmp(draw_type,"arrows2") == 0 ){
		4742	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	4743	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4744	add_js_arrows(js_include_file,2,draw_type,line_width,2,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head,use_snap);
8224	bpr	4745	if(use_input_xy == 1){
7874	schaersvoo	4746	add_input_arrow(js_include_file,1);
8815	schaersvoo	4747	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7874	schaersvoo	4748	}
8071	schaersvoo	4749	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7874	schaersvoo	4750	}
		4751	else
		4752	if(strcmp(draw_type,"arrow2") == 0 ){
		4753	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	4754	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4755	add_js_arrows(js_include_file,1,draw_type,line_width,2,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head,use_snap);
8224	bpr	4756	if(use_input_xy == 1){
7874	schaersvoo	4757	add_input_arrow(js_include_file,1);
8815	schaersvoo	4758	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7874	schaersvoo	4759	}
8071	schaersvoo	4760	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7874	schaersvoo	4761	}
		4762	else
7614	schaersvoo	4763	if(strcmp(draw_type,"arrow") == 0 ){
		4764	if( js_function[DRAW_ARROWS] != 1 ){ js_function[DRAW_ARROWS] = 1;}
7876	schaersvoo	4765	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4766	add_js_arrows(js_include_file,1,draw_type,line_width,1,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],arrow_head,use_snap);
8224	bpr	4767	if(use_input_xy == 1){
7654	schaersvoo	4768	add_input_arrow(js_include_file,1);
8815	schaersvoo	4769	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7654	schaersvoo	4770	}
8071	schaersvoo	4771	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4772	}
		4773	else
14027	schaersvoo	4774	if( strcmp(draw_type,"curvedarrow2") == 0 ){
14035	schaersvoo	4775	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4776	add_js_curvedarrow(js_include_file,canvas_root_id,1,line_width,stroke_color,stroke_opacity,use_dashed,arrow_head,2,use_snap);
14027	schaersvoo	4777	if(use_input_xy > 0){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
14038	schaersvoo	4778	}
		4779	else
		4780	if( strcmp(draw_type,"curvedarrows2") == 0 ){
14035	schaersvoo	4781	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4782	add_js_curvedarrow(js_include_file,canvas_root_id,2,line_width,stroke_color,stroke_opacity,use_dashed,arrow_head,2,use_snap);
14027	schaersvoo	4783	if(use_input_xy > 0){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
14038	schaersvoo	4784	}
		4785	else
		4786	if( strcmp(draw_type,"curvedarrows") == 0 ){
14035	schaersvoo	4787	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4788	add_js_curvedarrow(js_include_file,canvas_root_id,2,line_width,stroke_color,stroke_opacity,use_dashed,arrow_head,1,use_snap);
14027	schaersvoo	4789	if(use_input_xy > 0){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
14038	schaersvoo	4790	}
		4791	else
		4792	if( strcmp(draw_type,"curvedarrow") == 0 ){
14035	schaersvoo	4793	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4794	add_js_curvedarrow(js_include_file,canvas_root_id,1,line_width,stroke_color,stroke_opacity,use_dashed,arrow_head,1,use_snap);
14027	schaersvoo	4795	if(use_input_xy > 0){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
14038	schaersvoo	4796	}
14025	schaersvoo	4797	else
11839	schaersvoo	4798	if(strcmp(draw_type,"polygon") == 0 \|\| strcmp(draw_type,"fpolygon") == 0 \|\| strcmp(draw_type,"filledpolygon") == 0){
7614	schaersvoo	4799	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
11839	schaersvoo	4800	if(strstr(draw_type,"f") != NULL ){if( use_pattern != 0 ){ use_filled = use_pattern;}else{use_filled =1;}}
7876	schaersvoo	4801	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4802	add_js_poly(js_include_file,-1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
8071	schaersvoo	4803	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4804	if(use_input_xy == 2){
7780	schaersvoo	4805	add_textarea_polygon(js_include_file);
8815	schaersvoo	4806	add_textarea_xy(js_include_file,canvas_root_id,input_style);
7746	schaersvoo	4807	}
7614	schaersvoo	4808	}
8224	bpr	4809	else
7614	schaersvoo	4810	if(strncmp(draw_type,"poly",4) == 0){
		4811	if(strlen(draw_type) < 5){canvas_error("use command \"userdraw poly[3-9],color\" eg userdraw poly6,blue");}
		4812	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
7876	schaersvoo	4813	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4814	add_js_poly(js_include_file,(int) (draw_type[4]-'0'),draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7652	schaersvoo	4815	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4816	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4817	}
8224	bpr	4818	else
11839	schaersvoo	4819	if(strcmp(draw_type,"triangle") == 0 \|\| strcmp(draw_type,"ftriangle") == 0 \|\| strcmp(draw_type,"filledtriangle") == 0){
7614	schaersvoo	4820	if( js_function[DRAW_PATHS] != 1 ){ js_function[DRAW_PATHS] = 1;}
11839	schaersvoo	4821	if(strstr(draw_type,"f") != NULL ){if( use_pattern != 0 ){ use_filled = use_pattern;}else{use_filled =1;}}
7876	schaersvoo	4822	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4823	add_js_poly(js_include_file,3,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7652	schaersvoo	4824	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4825	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4826	}
8224	bpr	4827	else
7989	schaersvoo	4828	if( strcmp(draw_type,"hline") == 0 ){
		4829	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		4830	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4831	add_js_hlines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
8071	schaersvoo	4832	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4833	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	4834	}
		4835	else
		4836	if( strcmp(draw_type,"hlines") == 0 ){
		4837	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		4838	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4839	add_js_hlines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
8071	schaersvoo	4840	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4841	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	4842	}
		4843	else
		4844	if( strcmp(draw_type,"vline") == 0 ){
		4845	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		4846	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4847	add_js_hlines(js_include_file,3,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
8071	schaersvoo	4848	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4849	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	4850	}
		4851	else
		4852	if( strcmp(draw_type,"vlines") == 0 ){
		4853	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
		4854	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4855	add_js_hlines(js_include_file,4,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
8071	schaersvoo	4856	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4857	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7989	schaersvoo	4858	}
		4859	else
7614	schaersvoo	4860	if( strcmp(draw_type,"line") == 0 ){
		4861	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4862	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7876	schaersvoo	4863	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4864	add_js_lines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7747	schaersvoo	4865	if( use_input_xy == 1 ){
7780	schaersvoo	4866	add_input_line(js_include_file,1);
8815	schaersvoo	4867	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7747	schaersvoo	4868	}
8071	schaersvoo	4869	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4870	}
		4871	else
		4872	if( strcmp(draw_type,"lines") == 0 ){
		4873	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4874	if( js_function[DRAW_LINES] != 1 ){ js_function[DRAW_LINES] = 1;}
7876	schaersvoo	4875	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4876	add_js_lines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7747	schaersvoo	4877	if( use_input_xy == 1 ){
7780	schaersvoo	4878	add_input_line(js_include_file,2);
8815	schaersvoo	4879	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
7746	schaersvoo	4880	}
8071	schaersvoo	4881	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4882	}
		4883	else
8362	schaersvoo	4884	if( strcmp(draw_type,"demilines") == 0 \|\| strcmp(draw_type,"halflines") == 0 ){
8244	schaersvoo	4885	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4886	if( js_function[DRAW_DEMILINES] != 1 ){ js_function[DRAW_DEMILINES] = 1;}
		4887	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4888	add_js_demilines(js_include_file,2,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
8244	schaersvoo	4889	if( use_input_xy == 1 ){
		4890	add_input_demiline(js_include_file,2);
8815	schaersvoo	4891	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
8244	schaersvoo	4892	}
		4893	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4894	}
		4895	else
8362	schaersvoo	4896	if( strcmp(draw_type,"demiline") == 0 \|\| strcmp(draw_type,"halfline") == 0 ){
8244	schaersvoo	4897	if( js_function[DRAW_CIRCLES] != 1 ){ js_function[DRAW_CIRCLES] = 1;}
		4898	if( js_function[DRAW_DEMILINES] != 1 ){ js_function[DRAW_DEMILINES] = 1;}
		4899	if(reply_format == 0){reply_format = 11;}
14044	schaersvoo	4900	add_js_demilines(js_include_file,1,draw_type,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
8244	schaersvoo	4901	if( use_input_xy == 1 ){
		4902	add_input_demiline(js_include_file,1);
8815	schaersvoo	4903	add_input_x1y1x2y2(js_include_file,canvas_root_id,font_size,input_style);
8244	schaersvoo	4904	}
		4905	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4906	}
		4907	else
11839	schaersvoo	4908	if( strcmp(draw_type,"rects") == 0 \|\| strcmp(draw_type,"frects") == 0 \|\| strcmp(draw_type,"filledrects") == 0 ){
7614	schaersvoo	4909	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
12008	schaersvoo	4910	if(strstr(draw_type,"f") != NULL){if( use_pattern != 0 ){ use_filled = use_pattern;}else{use_filled =1;}}
7876	schaersvoo	4911	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4912	add_js_rect(js_include_file,2,0,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7652	schaersvoo	4913	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4914	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4915	}
8224	bpr	4916	else
11839	schaersvoo	4917	if( strcmp(draw_type,"roundrects") == 0 \|\| strcmp(draw_type,"froundrects") == 0 \|\| strcmp(draw_type,"filledroundrects") == 0){
7614	schaersvoo	4918	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
11839	schaersvoo	4919	if( strstr(draw_type,"f") != NULL ){ if( use_pattern != 0 ){ use_filled = use_pattern;}else{use_filled =1;}}
7876	schaersvoo	4920	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4921	add_js_rect(js_include_file,2,1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7652	schaersvoo	4922	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4923	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4924	}
8224	bpr	4925	else
11839	schaersvoo	4926	if( strcmp(draw_type,"rect") == 0 \|\| strcmp(draw_type,"frect") == 0 \|\| strcmp(draw_type,"filledrect") == 0 ){
7614	schaersvoo	4927	if( js_function[DRAW_RECTS] != 1 ){ js_function[DRAW_RECTS] = 1;}
13829	bpr	4928	if( strstr(draw_type,"f") != NULL ){if( use_pattern != 0 ){ use_filled = use_pattern;}else{use_filled =1;}}
7876	schaersvoo	4929	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4930	add_js_rect(js_include_file,1,0,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7652	schaersvoo	4931	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4932	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4933	}
8224	bpr	4934	else
11839	schaersvoo	4935	if( strcmp(draw_type,"roundrect") == 0 \|\| strcmp(draw_type,"froundrect") == 0 \|\| strcmp(draw_type,"filledroundrect") == 0){
7614	schaersvoo	4936	if( js_function[DRAW_ROUNDRECTS] != 1 ){ js_function[DRAW_ROUNDRECTS] = 1;}
11839	schaersvoo	4937	if( strstr(draw_type,"f") != NULL ){if( use_pattern != 0 ){ use_filled = use_pattern;}else{use_filled = 1;}}
7876	schaersvoo	4938	if(reply_format == 0){reply_format = 2;}
14044	schaersvoo	4939	add_js_rect(js_include_file,1,1,draw_type,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_snap);
7652	schaersvoo	4940	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4941	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4942	}
		4943	else
11839	schaersvoo	4944	if( strcmp(draw_type,"arcs") == 0 \|\| strcmp(draw_type,"farcs") == 0 \|\| strcmp(draw_type,"filledarcs") == 0 ){
8083	schaersvoo	4945	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
11839	schaersvoo	4946	if( js_function[JS_FIND_ANGLE] != 1 ){ js_function[JS_FIND_ANGLE] = 1;}
		4947	if( strstr(draw_type,"f") != NULL ){use_filled =1;}
8083	schaersvoo	4948	if(reply_format == 0){reply_format = 25;}
14044	schaersvoo	4949	add_js_arc(js_include_file,canvas_root_id,2,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_filled,use_snap);
8083	schaersvoo	4950	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4951	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4952	}
		4953	else
11839	schaersvoo	4954	if( strcmp(draw_type,"arc") == 0 \|\| strcmp(draw_type,"farc") == 0 \|\| strcmp(draw_type,"filledarc") == 0){
8071	schaersvoo	4955	if( js_function[DRAW_SEGMENTS] != 1 ){ js_function[DRAW_SEGMENTS] = 1;}
11017	schaersvoo	4956	if( js_function[JS_FIND_ANGLE] != 1 ){ js_function[JS_FIND_ANGLE] = 1;}
11839	schaersvoo	4957	if( strstr(draw_type,"f") != NULL ){use_filled =1;}
8083	schaersvoo	4958	if(reply_format == 0){reply_format = 25;}
14044	schaersvoo	4959	add_js_arc(js_include_file,canvas_root_id,1,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_dashed,dashtype[0],dashtype[1],use_filled,use_snap);
8071	schaersvoo	4960	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4961	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4962	}
		4963	else
7614	schaersvoo	4964	if( strcmp(draw_type,"text") == 0){
7876	schaersvoo	4965	if(reply_format == 0){reply_format = 17;}
14044	schaersvoo	4966	add_js_text(js_include_file,canvas_root_id,font_size,font_family,stroke_color,stroke_opacity,use_snap);
7652	schaersvoo	4967	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
8071	schaersvoo	4968	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
7614	schaersvoo	4969	}
8116	schaersvoo	4970	else
14038	schaersvoo	4971	if( strcmp(draw_type,"images") == 0){
		4972	if(reply_format == 0){reply_format = 29;}
		4973	add_js_images(js_include_file,canvas_root_id,use_offset,use_snap);
		4974	}
		4975	else
8116	schaersvoo	4976	if( strcmp(draw_type,"inputs") == 0){
8224	bpr	4977	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
8127	schaersvoo	4978	if(reply_format == 0){reply_format = 27;}
14044	schaersvoo	4979	add_js_inputs(js_include_file,canvas_root_id,2,input_cnt,input_style,line_width,use_offset,use_snap);
8116	schaersvoo	4980	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4981	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4982	}
		4983	else
		4984	if( strcmp(draw_type,"input") == 0){
8224	bpr	4985	if( js_function[DRAW_INPUTS] != 1 ){ js_function[DRAW_INPUTS] = 1;}
8127	schaersvoo	4986	if(reply_format == 0){reply_format = 27;}
14044	schaersvoo	4987	add_js_inputs(js_include_file,canvas_root_id,1,input_cnt,input_style,line_width,use_offset,use_snap);
8116	schaersvoo	4988	if(use_input_xy == 1){ canvas_error("userinput_xy not yet implemented for this userdraw type !");}
		4989	if(use_input_xy == 2){ canvas_error("usertextarea_xy not yet implemented for this userdraw type !");}
		4990	}
11839	schaersvoo	4991	else /* attention: THIS NEEDS TO BE LAST ! */
11825	schaersvoo	4992	if( strstr(draw_type,"fill") != NULL ){
11005	schaersvoo	4993	decimals = find_number_of_digits(precision);
14044	schaersvoo	4994	add_js_clickfill(js_include_file,canvas_root_id,stroke_color,(int) (fill_opacity/0.0039215),use_snap);
		4995	if( reply_format == 0){reply_format = 10;}
11825	schaersvoo	4996	if( js_function[DRAW_FILLTOBORDER] != 1 ){js_function[DRAW_FILLTOBORDER] = 1;add_js_filltoborder(js_include_file,canvas_root_id,canvas_type);}
11830	schaersvoo	4997	if( strcmp(draw_type,"gridfill") == 0){js_function[DRAW_GRIDFILL] = 1;string_length = snprintf(NULL,0,"draw_gridfill(%d,%d,%d,4,4,%d,'%s','0.01',%d,%d,true); ",FILL_CANVAS+fill_cnt,(int) (xmax),(int) (ymax),line_width,stroke_color,xsize,ysize);check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);snprintf(tmp_buffer,string_length,"draw_gridfill(%d,%d,%d,4,4,%d,'%s','0.01',%d,%d,true);",FILL_CANVAS+fill_cnt,(int) (xmax),(int) (ymax),line_width,stroke_color,xsize,ysize);add_to_buffer(tmp_buffer);fill_cnt++;}
		4998	if( strcmp(draw_type,"diamondfill") == 0){js_function[DRAW_DIAMONDFILL] = 1;string_length = snprintf(NULL,0,"draw_diamondfill(%d,%d,%d,4,4,%d,'%s','0.01',%d,%d,true); ",FILL_CANVAS+fill_cnt,(int) (xmax),(int) (ymax),line_width,stroke_color,xsize,ysize);check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);snprintf(tmp_buffer,string_length,"draw_diamondfill(%d,%d,%d,4,4,%d,'%s','0.01',%d,%d,true);",FILL_CANVAS+fill_cnt,(int) (xmax),(int) (ymax),line_width,stroke_color,xsize,ysize);add_to_buffer(tmp_buffer);fill_cnt++;}
		4999	if( strcmp(draw_type,"dotfill") == 0){js_function[DRAW_DOTFILL] = 1;string_length = snprintf(NULL,0,"draw_dotfill(%d,%d,%d,4,4,%d,'%s','0.01',%d,%d,true); ",FILL_CANVAS+fill_cnt,(int) (xmax),(int) (ymax),line_width,stroke_color,xsize,ysize);check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);snprintf(tmp_buffer,string_length,"draw_dotfill(%d,%d,%d,4,4,%d,'%s','0.01',%d,%d,true);",FILL_CANVAS+fill_cnt,(int) (xmax),(int) (ymax),line_width,stroke_color,xsize,ysize);add_to_buffer(tmp_buffer);fill_cnt++;}
		5000	if( strcmp(draw_type,"hatchfill") == 0){js_function[DRAW_HATCHFILL] = 1;string_length = snprintf(NULL,0,"draw_hatchfill(%d,%d,%d,4,4,%d,'%s','0.01',%d,%d,true); ",FILL_CANVAS+fill_cnt,(int) (xmax),(int) (ymax),line_width,stroke_color,xsize,ysize);check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);snprintf(tmp_buffer,string_length,"draw_hatchfill(%d,%d,%d,4,4,%d,'%s','0.01',%d,%d,true);",FILL_CANVAS+fill_cnt,(int) (xmax),(int) (ymax),line_width,stroke_color,xsize,ysize);add_to_buffer(tmp_buffer);fill_cnt++;}
		5001	if( strcmp(draw_type,"textfill") == 0){js_function[DRAW_TEXTFILL] = 1;temp = get_string(infile,1);string_length = snprintf(NULL,0,"draw_textfill(%d,%d,%d,'%s','%s',%d,%d,'%s',true); ",FILL_CANVAS+fill_cnt,(int) (xmax),(int) (ymax),stroke_color,font_family,xsize,ysize,temp);check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);snprintf(tmp_buffer,string_length,"draw_textfill(%d,%d,%d,'%s','%s',%d,%d,'%s',true); ",FILL_CANVAS+fill_cnt,(int) (xmax),(int) (ymax),stroke_color,font_family,xsize,ysize,temp);add_to_buffer(tmp_buffer);fill_cnt++;}
11005	schaersvoo	5002	}
		5003	else
7614	schaersvoo	5004	{
		5005	canvas_error("unknown drawtype or typo? ");
		5006	}
		5007	reset();
		5008	break;
8386	schaersvoo	5009
		5010	case USERINPUT:
		5011	/*
13955	schaersvoo	5012	@ userinput function inputfield
9382	schaersvoo	5013	@ alternative : userinput_function
		5014	@ alternative : userinput_xy
8386	schaersvoo	5015	@ textarea and inputfield are only usable in combination with some 'userdraw draw_ type'
		5016	@ function may be used any time (e.g. without userdraw)
8815	schaersvoo	5017	@ multiple 'userinput function' commands may be used.
8386	schaersvoo	5018	@ use command "functionlabel some_string" to define the inputfield text : default value "f(x)="
		5019	@ use command 'strokecolor some_color' to adjust the plot / functionlabel color
8815	schaersvoo	5020	@ use command 'inputstyle some_css' to adjust the inputfields
		5021	@ use command 'fontsize int' to adjust the label fonts. (default 12px)
		5022	@ the user input for the function will be corrected by a simple 'rawmath' implementation...<br />an error message will be shown if javascript can not interpret the user input
13959	bpr	5023	@%userinput_function%size 400,400%xrange -10,10%yrange -10,10%functionlabel your function g(x)=%axis%axisnumbering%xlabel x-axis%ylabel y-axis%grid 2,2,grey,3,3,5,grey%inputstyle color:blue;text-align:center%userinput function%# note: number of function inputs not limited
13955	schaersvoo	5024	@%userinput_points%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%# adding 2 inputfields for x and y%userinput inputfield%userdraw points,blue
		5025	@%userinput_arrows%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%#adding 4 inputfields for (x1;y1)---(x2;y2)%userinput inputfieldd%userdraw arrows,blue
		5026	@%userinput_combined%size 400,400%xrange -10,10%yrange -10,10%functionlabel your function g(x)=%axis%axisnumbering%xlabel x-axis%ylabel y-axis%precision 0%grid 2,2,grey,3,3,5,grey%inputstyle color:blue;text-align:center%precision 1000%strokecolor red%opacity 255,255%userinput function%# note: number of function inputs not limited%userdraw line,blue
8386	schaersvoo	5027	*/
		5028	temp = get_string_argument(infile,1);
		5029	if(strstr(temp,"function") != 0 \|\| strstr(temp,"curve") != 0 \|\| strstr(temp,"plot") != 0 ){
		5030	if( js_function[DRAW_JSFUNCTION] != 1 ){
		5031	add_rawmath(js_include_file);/* add simple rawmath routine to correct user input of function */
		5032	js_function[DRAW_JSFUNCTION] = 1;
		5033	if(reply_format == 0){reply_format = 24;}/* read canvas_input values */
8815	schaersvoo	5034	add_input_jsfunction(js_include_file,canvas_root_id,input_style,function_label,input_cnt,stroke_color,stroke_opacity,line_width,use_dashed,dashtype[0],dashtype[1],font_size);
8386	schaersvoo	5035	input_cnt++;
		5036	}
10953	bpr	5037	else
8386	schaersvoo	5038	{
		5039	/* no need to add DRAW_JSFUNCTION , just call it with the parameters */
8815	schaersvoo	5040	fprintf(js_include_file,"add_input_jsfunction(%d,\"%s\",\"%s\",%d,\"%s\",\"%.2f\",%d,%d,%d,%d);\n",input_cnt,input_style,function_label,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],font_size);
8386	schaersvoo	5041	input_cnt++;
		5042	}
		5043	if( use_js_math == FALSE){/* add this stuff only once...*/
		5044	add_to_js_math(js_include_file);
		5045	use_js_math = TRUE;
		5046	}
		5047	if( use_js_plot == FALSE){
		5048	use_js_plot = TRUE;
		5049	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		5050	}
		5051	}
		5052	else
		5053	{
		5054	if(strstr(temp,"inputfield") != 0 ){
		5055	if( use_input_xy != 0 ){canvas_error("userinput_xy can not be combined with usertextarea_xy command");}
		5056	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		5057	use_input_xy = 1;
		5058	}
		5059	else
		5060	{
		5061	if(strstr(temp,"textarea") != 0 ){
		5062	if( use_input_xy != 0 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
		5063	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		5064	use_input_xy = 2;
		5065	}
		5066	else
		5067	{
		5068	canvas_error("userinput argument may be \"function,inputfield,textarea\"");
		5069	}
		5070	}
		5071	}
		5072	break;
		5073	case USERINPUT_XY:
		5074	/*
		5075	@ userinput_xy
9372	schaersvoo	5076	@ keyword (no arguments required)
8386	schaersvoo	5077	@ to be used in combination with command "userdraw object_type,color"
		5078	@ if set two (or three) input fields are added to the document<br />(one for x-values , one for y-values and in case of drawing circle one for radius-values)
		5079	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
		5080	@ math input is allowed (e.g something like: 1+3,2*6,1/3,sqrt(3), sin(pi/4),10^-2,log(2)...)<br />eval function is 'protected' against code injection.
11088	schaersvoo	5081	@ can <b>not</b> be combined with command "intooltip tiptext" <br />note: the 'tooltip div element' is used for placing inputfields
8386	schaersvoo	5082	@ user drawings will not zoom on zooming (or pan on panning)
8815	schaersvoo	5083	@ use command 'inputstyle some_css' to adjust the inputarea.
		5084	@ use command 'fontsize int' to adjust the text labels (if needed)
13950	schaersvoo	5085	@%userinput_xy%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%precision 0%grid 2,2,grey,3,3,6,black%# provides inputfields for (x1:y1)---(x2:y2)%userinput_xy%linewidth 2%precision 1000%userdraw lines,blue
8386	schaersvoo	5086	*/
		5087	/* add simple eval check to avoid code injection with unprotected eval(string) */
		5088	if( use_input_xy != 0 ){canvas_error("userinput_xy can not be combined with usertextarea_xy command");}
		5089	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		5090	use_input_xy = 1;
		5091	break;
		5092
		5093	case USERINPUT_FUNCTION:
		5094	/*
		5095	@ userinput_function
9372	schaersvoo	5096	@ keyword (no arguments required)
8386	schaersvoo	5097	@ if set , a inputfield will be added to the page
		5098	@ repeat keyword for more function input fields
		5099	@ the userinput value will be plotted in the canvas
10953	bpr	5100	@ this value may be read with 'read_canvas()'. <br />for do it yourself js-scripters : If this is the first inputfield in the script, its id is canvas_input0
8386	schaersvoo	5101	@ use before this command 'userinput_function',<br />commands like 'inputstyle some_css' , 'xlabel some_description' , 'opacity int,int' , 'linewidth int' , 'dashed' and 'dashtype int,int' to modify
8815	schaersvoo	5102	@ fontsize can be set using command 'fontsize int'
8386	schaersvoo	5103	@ incompatible with command 'intooltip link_text_or_image' : it uses the tooltip div for adding the inputfield
13950	schaersvoo	5104	@%userinput_function%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%xlabel x-axis%ylabel y-axis%precision 0%grid 2,2,grey,2,2,5,grey%precision 1000%linewidth 2%# first inputfield%inputstyle color:blue;text-align:center;font-family:Italic;%strokecolor blue%functionlabel g(x)=%userinput function%# second inputfield%inputstyle color:green;text-align:center;font-family:Italic;%strokecolor green%functionlabel h(x)=%userinput function%# third inputfield%inputstyle color:purple;text-align:center;font-family:Italic;%strokecolor purple%functionlabel k(x)=%userinput function%# no limit in number of function inputfields
8386	schaersvoo	5105	*/
		5106	if( js_function[DRAW_JSFUNCTION] != 1 ){
		5107	js_function[DRAW_JSFUNCTION] = 1;
		5108	add_rawmath(js_include_file);
		5109	if(reply_format == 0){reply_format = 24;}/* read canvas_input values */
8815	schaersvoo	5110	add_input_jsfunction(js_include_file,canvas_root_id,input_style,function_label,input_cnt,stroke_color,stroke_opacity,line_width,use_dashed,dashtype[0],dashtype[1],font_size);
8386	schaersvoo	5111	input_cnt++;
		5112	}
10953	bpr	5113	else
8386	schaersvoo	5114	{
		5115	/* no need to add DRAW_JSFUNCTION , just call it with the parameters */
8815	schaersvoo	5116	fprintf(js_include_file,"add_input_jsfunction(%d,\"%s\",\"%s\",%d,\"%s\",\"%.2f\",%d,%d,%d,%d);\n",input_cnt,input_style,function_label,line_width,stroke_color,stroke_opacity,use_dashed,dashtype[0],dashtype[1],font_size);
8386	schaersvoo	5117	input_cnt++;
		5118	}
		5119	if( use_js_math == FALSE){/* add this stuff only once...*/
		5120	add_to_js_math(js_include_file);
		5121	use_js_math = TRUE;
		5122	}
		5123	if( use_js_plot == FALSE){
		5124	use_js_plot = TRUE;
		5125	add_jsplot(js_include_file,canvas_root_id); /* this plots the function on JSPLOT_CANVAS */
		5126	}
		5127	break;
		5128
		5129
		5130
11806	schaersvoo	5131	case USERTEXTAREA_XY:
7788	schaersvoo	5132	/*
11806	schaersvoo	5133	@ usertextarea_xy
13955	schaersvoo	5134	@ NOT IMPLEMENTED !!
11806	schaersvoo	5135	@ keyword (no arguments required)
		5136	@ to be used in combination with command "userdraw object_type,color" wherein object_type is only segment / polyline for the time being...
		5137	@ if set two textareas are added to the document<br />(one for x-values , one for y-values)
		5138	@ the student may use this as correction for (x:y) on a drawing (or to draw without mouse, using just the coordinates)
		5139	@ user drawings will not zoom on zooming (or pan on panning)
		5140	@ use command 'inputstyle some_css' to adjust the inputarea.
		5141	@ use command 'fontsize int' to adjust the text labels (if needed)
7788	schaersvoo	5142	*/
11806	schaersvoo	5143	if( use_input_xy != 0 ){canvas_error("usertextarea_xy can not be combined with userinput_xy command");}
		5144	if( use_safe_eval == FALSE){use_safe_eval = TRUE;add_safe_eval(js_include_file);} /* just once */
		5145	use_input_xy = 2;
7788	schaersvoo	5146	break;
8386	schaersvoo	5147
11806	schaersvoo	5148	case VLINE:
8386	schaersvoo	5149	/*
11806	schaersvoo	5150	@ vline x,y,color
		5151	@ alternative : verticalline
		5152	@ draw a vertical line through point (x:y) in color 'color'
		5153	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a>
12107	schaersvoo	5154	@%vline%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%onclick%vline 0,0,red%onclick%vline 1,0,orange%onclick%vline 2,0,blue%onclick%vline 3,0,green
8386	schaersvoo	5155	*/
11806	schaersvoo	5156	for(i=0;i<3;i++) {
7614	schaersvoo	5157	switch(i){
11806	schaersvoo	5158	case 0: double_data[0] = get_real(infile,0);break; /* x-values */
		5159	case 1: double_data[1] = get_real(infile,0);break; /* y-values */
		5160	case 2: stroke_color=get_color(infile,1);/* name or hex color */
		5161	double_data[2] = double_data[0];
7614	schaersvoo	5162	decimals = find_number_of_digits(precision);
14045	schaersvoo	5163	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[0],decimals,double_data[2],decimals,100ymin,decimals,100ymax,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	5164	if(onclick > 0){click_cnt++;}
		5165	/* click_cnt++; */
8379	schaersvoo	5166	reset();
7614	schaersvoo	5167	break;
		5168	}
		5169	}
		5170	break;
		5171
11806	schaersvoo	5172	case VLINES:
11802	schaersvoo	5173	/*
11806	schaersvoo	5174	@ vlines color,x1,y1,x2,y2....
		5175	@ alternative : verticallines
		5176	@ draw vertical lines through points (x1:y1),(x2:y2)... in color 'color'
		5177	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually
13939	bpr	5178	@%vlines%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%onclick%vlines red,1,0,2,0,3,0,4,0
11802	schaersvoo	5179	*/
11806	schaersvoo	5180	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		5181	fill_color = stroke_color;
		5182	i=0;
		5183	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	5184	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
11806	schaersvoo	5185	if(i%2 == 0 ){
		5186	double_data[i] = get_real(infile,0); /* x */
7614	schaersvoo	5187	}
11806	schaersvoo	5188	else
		5189	{
		5190	double_data[i] = get_real(infile,1); /* y */
7983	schaersvoo	5191	}
11806	schaersvoo	5192	i++;
7983	schaersvoo	5193	}
11806	schaersvoo	5194	decimals = find_number_of_digits(precision);
		5195	for(c = 0 ; c < i-1 ; c = c+2){
14045	schaersvoo	5196	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,4,[%.f,%.f],[%.f,%.f],[30],[30],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c],decimals,ymin,decimals,ymax,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype[0],dashtype[1],use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	5197	if(onclick > 0){click_cnt++;}
		5198	/* click_cnt++; */
		5199	}
		5200	reset();
7983	schaersvoo	5201	break;
11806	schaersvoo	5202
		5203	case VIDEO:
7614	schaersvoo	5204	/*
11806	schaersvoo	5205	@ video x,y,w,h,videofile location
		5206	@ x,y : left top corner of audio element (in xrange / yrange)
		5207	@ w,y : width and height in pixels
		5208	@ video format may be in *.mp4 (todo:other formats)
13950	schaersvoo	5209	@%video%size 400,400%xrange -10,10%yrange -10,10%opacity 200,100%frect -9,9,6,-6,green%video -5,5,200,200,http://techslides.com/demos/sample-videos/small.mp4
7614	schaersvoo	5210	*/
11806	schaersvoo	5211	if( js_function[DRAW_VIDEO] != 1 ){ js_function[DRAW_VIDEO] = 1;}
7614	schaersvoo	5212	for(i=0;i<5;i++){
		5213	switch(i){
11806	schaersvoo	5214	case 0: int_data[0] = x2px(get_real(infile,0)); break; /* x in x/y-range coord system -> pixel */
		5215	case 1: int_data[1] = y2px(get_real(infile,0)); break; /* y in x/y-range coord system -> pixel */
		5216	case 2: int_data[2] = (int) (get_real(infile,0)); break; /* pixel width */
		5217	case 3: int_data[3] = (int) (get_real(infile,0)); break; /* height pixel height */
		5218	case 4: temp = get_string(infile,1);
		5219	string_length = snprintf(NULL,0, "draw_video(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
7614	schaersvoo	5220	check_string_length(string_length);tmp_buffer = my_newmem(string_length+1);
11806	schaersvoo	5221	snprintf(tmp_buffer,string_length,"draw_video(%d,%d,%d,%d,%d,\"%s\");\n",canvas_root_id,int_data[0],int_data[1],int_data[2],int_data[3],temp);
7614	schaersvoo	5222	add_to_buffer(tmp_buffer);
		5223	break;
		5224	default:break;
		5225	}
		5226	}
		5227	reset();
		5228	break;
11806	schaersvoo	5229
7614	schaersvoo	5230	case X_AXIS_STRINGS:
		5231	/*
		5232	@ xaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
9385	schaersvoo	5233	@ alternative : xaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
13936	bpr	5234	@ usable for commands <a href="#numberline">numberline</a> and <a href="#grid">grid</a> or combinations thereof
9346	schaersvoo	5235	@ use these x-axis num1...num_n values instead of default xmin...xmax
11891	schaersvoo	5236	@ in case of command 'grid' . there is no need to use keyword <a href="#axisnumbering">axisnumbering</a>
13936	bpr	5237	@ use command <a href="#axis">axis</a> to have visual x/y-axis lines (see command <a href="#grid">grid</a>
11088	schaersvoo	5238	@ use command "fontcolor", "fontfamily" to adjust font <br />defaults: black,12,Ariel<br />note: command "fontsize" is not active for this command.("fontsize" can be used for the <a href="#legend">"legend"</a> in a <a href="#grid">grid</a>)
9346	schaersvoo	5239	@ a javascript error message will flag non-matching value:name pairs
9341	schaersvoo	5240	@ if the 'x-axis words' are too big and will overlap, a simple alternating offset will be applied
11044	schaersvoo	5241	@ to be used before command grid (see <a href="#grid">command grid</a>)
13937	schaersvoo	5242	@'xmajor' steps should be synchronised with numbers eg. "1" in the next example "grid 1,100,grey,1,4,6,grey"
		5243	@%xaxistext%size 800,200%xrange -1,13%yrange -5,10%axis%xaxistext 1:january:2:february:3:march:4:april:5:may:6:june:7:july:8:august:9:september:10:october:11:november:12:december%grid 1,4,grey,1,2,10,red
7614	schaersvoo	5244	*/
11891	schaersvoo	5245	use_axis_numbering++;
7614	schaersvoo	5246	temp = get_string(infile,1);
		5247	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		5248	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
11891	schaersvoo	5249	fprintf(js_include_file,"x_strings[%d] = [\"%s\"];x_strings_up[%d] = null;",use_axis_numbering,temp,use_axis_numbering);
7614	schaersvoo	5250	break;
9341	schaersvoo	5251	case X_AXIS_STRINGS_UP:
		5252	/*
		5253	@ xaxisup num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
9385	schaersvoo	5254	@ alternative : xaxistextup num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
9341	schaersvoo	5255	@ the text will be rotated 90° up
11044	schaersvoo	5256	@ no need to use keyword <a href="#axisnumbering">axisnumbering</a>
13936	bpr	5257	@ use command <a href="#axis">axis</a> to have visual x/y-axis lines (see command <a href="#grid">grid</a>
9346	schaersvoo	5258	@ use these x-axis num1...num_n values instead of default xmin...xmax
13937	schaersvoo	5259	@ use command "fontcolor",<a href="#fontfamily">fontfamily</a> to adjust font <br />defaults: black,12,Ariel<br />note: command "fontsize" is not active for this command.("fontsize" can be used for the <a href="#legend">"legend"</a> in a <a href="#grid">grid</a>)
9346	schaersvoo	5260	@ a javascript error message will flag non-matching value:name pairs
9341	schaersvoo	5261	@ if the 'x-axis words' are too big, they will overlap the graph<br /> (in this case the text will start from ysize upwards)
11044	schaersvoo	5262	@ to be used before command grid (see <a href="#grid">command grid</a>)
13937	schaersvoo	5263	@'xmajor' steps should be synchronised with numbers eg. "1" in the next example "grid 1,100,grey,1,4,6,grey"
		5264	@%xaxistextup%size 800,300%xrange -1,13%yrange -10,10%fontfamily Italic 18pt Courier%axis%xaxistextup 1:january:2:february:3:march:4:april:5:may:6:june:7:july:8:august:9:september:10:october:11:november:12:december%grid 1,4,grey,1,2,10,red
9341	schaersvoo	5265	*/
11891	schaersvoo	5266	use_axis_numbering++;
9341	schaersvoo	5267	temp = get_string(infile,1);
		5268	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		5269	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
11891	schaersvoo	5270	fprintf(js_include_file,"x_strings_up[%d] = 1;x_strings[%d] = [\"%s\"];",use_axis_numbering,use_axis_numbering,temp);
9341	schaersvoo	5271	break;
8224	bpr	5272
11806	schaersvoo	5273	case XERRORBARS:
7614	schaersvoo	5274	/*
11806	schaersvoo	5275	@ xerrorbars color,E1,E2,x1,y1,x2,y2,...,x_n,y_n
		5276	@ draw multiple points with x-errorbars E1 (error value left from point) and E2 (error value right from point) at given coordinates in color 'color'
		5277	@ the errors E1 and E2 values are in xrange.
		5278	@ use command 'linewidth int' to adust size
		5279	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
12107	schaersvoo	5280	@%xerrorbars%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%drag xy%xerrorbars red,0.8,1.3,0,0,1,1,2,3,3,2,4,5,5,2,6,1,-1,-2,-2,0,-3,2,-4,4,-5,-1
12006	schaersvoo	5281
7614	schaersvoo	5282	*/
11806	schaersvoo	5283	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		5284	fill_color = stroke_color;
		5285	i=0;
		5286	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	5287	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
11806	schaersvoo	5288	if(i%2 == 0 ){
		5289	double_data[i] = get_real(infile,0); /* x */
8071	schaersvoo	5290	}
11806	schaersvoo	5291	else
		5292	{
		5293	double_data[i] = get_real(infile,1); /* y */
7614	schaersvoo	5294	}
11806	schaersvoo	5295	i++;
7614	schaersvoo	5296	}
11806	schaersvoo	5297	decimals = find_number_of_digits(precision);
		5298	for(c = 2 ; c < i-1 ; c = c+2){
14045	schaersvoo	5299	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,20,[%.f],[%.f],[%.2f],[%.2f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+1],double_data[0],double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	5300	/* click_cnt++; */
		5301	if(onclick > 0){click_cnt++;}
		5302	}
7614	schaersvoo	5303	reset();
		5304	break;
11806	schaersvoo	5305
		5306	case XRANGE:
7614	schaersvoo	5307	/*
11806	schaersvoo	5308	@ xrange xmin,xmax
		5309	@ alternative : rangex
		5310	@ if not given: 0,xsize (eg in pixels)
7614	schaersvoo	5311	*/
11806	schaersvoo	5312	for(i = 0 ; i<2; i++){
7614	schaersvoo	5313	switch(i){
11806	schaersvoo	5314	case 0: xmin = get_real(infile,0);break;
		5315	case 1: xmax = get_real(infile,1);break;
7614	schaersvoo	5316	default: break;
		5317	}
		5318	}
11806	schaersvoo	5319	if(xmin >= xmax){canvas_error(" xrange is not OK : xmin < xmax !\n");}
		5320	fprintf(js_include_file,"var xmin = %f;var xmax = %f;\n",xmin,xmax);
		5321	found_size_command++;
7614	schaersvoo	5322	break;
8386	schaersvoo	5323
		5324
		5325
11806	schaersvoo	5326	case XSNAPTOGRID:
7614	schaersvoo	5327	/*
11806	schaersvoo	5328	@ xsnaptogrid
		5329	@ keyword (no arguments required)
		5330	@ a draggable object (use command "drag x\|y\|xy") will snap to the given x-grid values when dragged (mouseup)
		5331	@ in case of userdraw the drawn points will snap to xmajor grid
		5332	@ if no grid is defined ,points will snap to every integer xrange value. (eg snap_x=1)
		5333	@ if you do not want a visible grid, but you only want a 'snaptogrid' with some value...define this grid with opacity 0.
		5334	@ if xminor is defined (use keyword 'axis' to activate xminor), the drawing will snap to xminor <br />use only even dividers in x-minor...for example<br />xsnaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
13939	bpr	5335	@%xsnaptogrid_1%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 2%xsnaptogrid%userdraw segments,red%precision 1%display x,red,12
		5336	@%xsnaptogrid_2%size 400,400%xrange -10,10%yrange -10,10%grid 1,1,grey%linewidth 3%drag x%points red,0,0,0,0,0,0,0,0,0,0
12007	schaersvoo	5337
7614	schaersvoo	5338	*/
14038	schaersvoo	5339	use_snap = 2;
11806	schaersvoo	5340	break;
8386	schaersvoo	5341
11806	schaersvoo	5342	case XOFFSET:
7614	schaersvoo	5343	/*
12063	schaersvoo	5344	@ xoffset
13829	bpr	5345	@ keyword ; to place the text centered above the text coordinates(x:y) ...
		5346	@ may be used for points or other things requiring centered labels
12063	schaersvoo	5347	@ use <a href="#fontfamily">fontfamily</a> for setting the font
11811	schaersvoo	5348	@ may be active for commands <a href="#text">text</a> and <a href="#string">string</a> (e.g. objects in the drag/drop/onclick-library)
12107	schaersvoo	5349	@%xoffset%size 400,400%xrange -10,10%yrange -10,10%fontfamily 12pt Ariel%string blue,-9,-9,no offset%point -9,-9,red%centered%string blue,-6,-6,centered%point -6,-6,red%xoffset%string blue,-3,-3,xoffset%point -3,-3,red%yoffset%string blue,0,0,yoffset%point 0,0,red%xyoffset%string blue,3,3,xyoffset%point 3,3,red%resetoffset%string blue,6,6,resetoffset%point 6,6,red
7614	schaersvoo	5350	*/
12063	schaersvoo	5351	use_offset = 2;
11806	schaersvoo	5352	break;
8386	schaersvoo	5353
11806	schaersvoo	5354	case XYOFFSET:
7614	schaersvoo	5355	/*
11806	schaersvoo	5356	@ xyoffset
		5357	@ keyword ; to place the text (x:y) to (x+dx:y+dy)... dx/dy are dependent on fontsize/fontfamily
13829	bpr	5358	@ may be used for points or other things requiring labels
12063	schaersvoo	5359	@ use <a href="#fontfamily">fontfamily</a> for setting the font
11806	schaersvoo	5360	@ only active for commands <a href="#text">text</a> and <a href="#string">string</a> (e.g. objects in the drag/drop/onclick-librariy
13829	bpr	5361	@ in case of inputfields the inputfield will be centered x and y on it's coordinates.<br />for example:<br />inputs 1,1,10,? <br />point 1,1,red <br /> the point will be completely invisible<br />note: keyword 'xyoffset' will also provide centering if used with <a href='#@userdraw'>input(s),color</a>
12107	schaersvoo	5362	@%xyoffset%size 400,400%xrange -10,10%yrange -10,10%fontfamily 12pt Ariel%string blue,-9,-9,no offset%point -9,-9,red%centered%string blue,-6,-6,centered%point -6,-6,red%xoffset%string blue,-3,-3,xoffset%point -3,-3,red%yoffset%string blue,0,0,yoffset%point 0,0,red%xyoffset%string blue,3,3,xyoffset%point 3,3,red%resetoffset%string blue,6,6,resetoffset%point 6,6,red
7614	schaersvoo	5363	*/
12063	schaersvoo	5364	use_offset = 3;
11806	schaersvoo	5365	break;
8386	schaersvoo	5366
7996	schaersvoo	5367	case XUNIT:
		5368	/*
		5369	@ xunit some_unit_for_x-values
		5370	@ unicode allowed (no html code)
12007	schaersvoo	5371	@ use together with command <a href='#display'>display or mouse</a>
9372	schaersvoo	5372	@ will display the cursor x-coordinate in 'unit'
12107	schaersvoo	5373	@%xunit%size 400,400%xrange -10,10%yrange -10,10%xunit cm \\u00B2%grid 2,2,grey%linewidth 2%userdraw segments,blue%display x,blue,18
7996	schaersvoo	5374	*/
		5375	fprintf(js_include_file,"unit_x = \"%s\";",get_string(infile,1));
		5376	break;
11806	schaersvoo	5377
		5378	case XLABEL:
7996	schaersvoo	5379	/*
11806	schaersvoo	5380	@ xlabel some_string
		5381	@ will be used to create a label for the x-axis (label is in quadrant I)
		5382	@ can only be used together with command 'grid'</a><br />not depending on keywords 'axis' and 'axisnumbering'
		5383	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)<br />use command "fontsize" to adjust.<br />(command "fontfamily" is not active for this command)
12007	schaersvoo	5384	@ see <a href='#ylabel'>ylabel</a>
12107	schaersvoo	5385	@%xlabel%size 400,400%xrange -10,10%yrange -10,10%axis%axisnumbering%xlabel cm\u00B2 %ylabel v\u00B2 %precision 1%grid 2,2,grey,2,2,5,grey
7996	schaersvoo	5386	*/
11806	schaersvoo	5387	temp = get_string(infile,1);
		5388	fprintf(js_include_file,"var xaxislabel = \"%s\";",temp);
7996	schaersvoo	5389	break;
8071	schaersvoo	5390
11806	schaersvoo	5391	case XLOGBASE:
7991	schaersvoo	5392	/*
11806	schaersvoo	5393	@ xlogbase number
		5394	@ sets the logbase number for the x-axis
		5395	@ default value 10
		5396	@ use together with commands xlogscale / xylogscale
7991	schaersvoo	5397	*/
11806	schaersvoo	5398	fprintf(js_include_file,"xlogbase=%d;",(int)(get_real(infile,1)));
7991	schaersvoo	5399	break;
		5400
11806	schaersvoo	5401	case XLOGSCALE:
7614	schaersvoo	5402	/*
11806	schaersvoo	5403	@ xlogscale ymajor,yminor,majorcolor,minorcolor
		5404	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		5405	@ ymajor is the major step on the y-axis; yminor is the divisor for the y-step
		5406	@ the linewidth is set using command 'linewidth int'
		5407	@ the opacity of major / minor grid lines is set by command <a href='#opacity'>'opacity</a>'
		5408	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number'
		5409	@ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use command 'precision' before 'xlogscale' command to set the precision (decimals) of the axis numbering</li><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
		5410	@ note: the complete canvas will be used for the 'log paper'
		5411	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		5412	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		5413	@ note: when using something like 'xrange 0.0001,0.01'...combined with commands <a href='#mouse'>'mouse'</a> and/or <a href='#userdraw'>'userdraw</a>...<br /> make sure the <a href='#precision'>precision</a> is set accordingly
		5414	@ note: in case of userdraw , the use of keyword <a href='#userinput_xy'>'userinput_xy'</a> may be handy !
		5415	@ <b>attention</b>: keyword 'snaptogrid' may not lead to the desired result...
12107	schaersvoo	5416	@%xlogscale%size 400,400%xrange 10,50000%yrange -5,5%xlabel x-axis%ylabel y-axis%xlogscale 10,1,black,grey%display x,red,22
7614	schaersvoo	5417	*/
11972	schaersvoo	5418	use_axis_numbering++;if(use_axis_numbering > 1){use_axis_numbering = 1;}
11806	schaersvoo	5419	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		5420	if( js_function[DRAW_XLOGSCALE] != 1 ){ js_function[DRAW_XLOGSCALE] = 1;}
		5421	for(i=0;i<4;i++){
7614	schaersvoo	5422	switch(i){
11806	schaersvoo	5423	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		5424	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		5425	case 2: stroke_color = get_color(infile,0); break;
		5426	case 3: fill_color = get_color(infile,1);
		5427	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
		5428	tmp_buffer = my_newmem(string_length+1);
		5429	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
		5430	fprintf(js_include_file,"use_xlogscale=1;snap_y = %f;snap_x = xlogbase;",double_data[0]/int_data[0]);
		5431	add_to_buffer(tmp_buffer);
		5432	break;
7614	schaersvoo	5433	default:break;
		5434	}
		5435	}
		5436	break;
11806	schaersvoo	5437
		5438	case XYLOGSCALE:
7614	schaersvoo	5439	/*
11806	schaersvoo	5440	@ xylogscale majorcolor,minorcolor
		5441	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		5442	@ the linewidth is set using command 'linewidth int'
		5443	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
		5444	@ default logbase number = 10 ... when needed , set the logbase number with command 'xlogbase number' and/or 'ylogbase number'
		5445	@ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
		5446	@ note: the complete canvas will be used for the 'log paper'
		5447	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		5448	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		5449	@ note: when using something like 'yrange 0.0001,0.01'...combined with commands 'mouse color,fontsize' and/or 'userdraw type,color'...<br /> make sure the precision is set accordingly (eg command 'precision 10000')
		5450	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
		5451	@ <b>attention</b>: keyword 'snaptogrid' may not lead to the desired result...
13829	bpr	5452	@%xylogscale%size 400,400%xrange 10,50000%yrange 10,50000%xlabel x-axis%ylabel y-axis%xylogscale black,grey%display xy,red,22
7614	schaersvoo	5453	*/
11972	schaersvoo	5454	use_axis_numbering++;if(use_axis_numbering > 1){use_axis_numbering = 1;}
11806	schaersvoo	5455	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		5456	if( js_function[DRAW_XYLOGSCALE] != 1 ){ js_function[DRAW_XYLOGSCALE] = 1;}
		5457	for(i=0;i<2;i++){
7614	schaersvoo	5458	switch(i){
11806	schaersvoo	5459	case 0: stroke_color = get_color(infile,0); break;
		5460	case 1: fill_color = get_color(infile,1);
		5461	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,precision);
		5462	tmp_buffer = my_newmem(string_length+1);
		5463	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,precision);
		5464	fprintf(js_include_file,"use_xlogscale=1;use_ylogscale=1;snap_x = xlogbase;snap_y = ylogbase;");
		5465	add_to_buffer(tmp_buffer);
		5466	break;
7614	schaersvoo	5467	default:break;
		5468	}
		5469	}
		5470	break;
11806	schaersvoo	5471
		5472
		5473	case Y_AXIS_STRINGS:
7647	schaersvoo	5474	/*
11806	schaersvoo	5475	@ yaxis num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		5476	@ alternativ : yaxistext num1:string1:num2:string2:num3:string3:num4:string4:....num_n:string_n
		5477	@ use command "fontcolor", "fontfamily" to adjust font <br />defaults: black,12,Ariel<br /> note: command "fontsize" is not active for this command.("fontsize" can be used for the <a href="#legend">"legend"</a> in a <a href="#grid">grid</a>)
		5478	@ no need to use keyword <a href="#axisnumbering">axisnumbering</a>
13936	bpr	5479	@ use command <a href="#axis">axis</a> to have visual x/y-axis lines (see command <a href="#grid">grid</a>
11806	schaersvoo	5480	@ use these y-axis num1...num_n values instead of default ymin...ymax
		5481	@ a javascript error message will flag non-matching value:name pairs
		5482	@ to be used before command grid (see <a href="#grid">command grid</a>)
12107	schaersvoo	5483	@%yaxistext%size 400,400%yrange 0,13%xrange -100,500%axis%yaxis 1:january:2:february:3:march:5:may:6:june:7:july:8:august:9:september:10:october:11:november:12:december%#'ymajor' steps should be synchronised with numbers eg. "1" in this example%grid 100,1,grey,4,1,6,grey
7647	schaersvoo	5484	*/
11806	schaersvoo	5485	temp = get_string(infile,1);
		5486	if( strstr(temp,":") != 0 ){ temp = str_replace(temp,":","\",\"");}
		5487	if( strstr(temp,"pi") != 0 ){ temp = str_replace(temp,"pi","(3.1415927)");}/* we need to replace pi for javascript y-value*/
		5488	fprintf(js_include_file,"y_strings = [\"%s\"];\n ",temp);
11891	schaersvoo	5489	use_axis_numbering++;
11806	schaersvoo	5490	break;
		5491
		5492
		5493	case YERRORBARS:
7614	schaersvoo	5494	/*
11806	schaersvoo	5495	@ yerrorbars color,E1,E2,x1,y1,x2,y2,...,x_n,y_n
		5496	@ draw multiple points with y-errorbars E1 (error value under point) and E2 (error value above point) at given coordinates in color 'color'
		5497	@ the errors E1 and E2 values are in yrange.
		5498	@ use command 'linewidth int' to adust size
		5499	@ may be set <a href="#drag">draggable</a> / <a href="#onclick">onclick</a> individually (!)
12107	schaersvoo	5500	@%yerrorbars%size 400,400%xrange -10,10%yrange -10,10%linewidth 2%onclick%yerrorbars red,0.8,1.3,0,0,1,1,2,3,3,2,4,5,5,2,6,1,-1,-2,-2,0,-3,2,-4,4,-5,-1
7614	schaersvoo	5501	*/
11806	schaersvoo	5502	stroke_color=get_color(infile,0); /* how nice: now the color comes first...*/
		5503	fill_color = stroke_color;
11772	schaersvoo	5504	i=0;
		5505	while( ! done ){ /* get next item until EOL*/
11997	schaersvoo	5506	if(i > MAX_INT - 1){canvas_error("too many points in argument: repeat command multiple times to fit");}
11772	schaersvoo	5507	if(i%2 == 0 ){
		5508	double_data[i] = get_real(infile,0); /* x */
		5509	}
		5510	else
		5511	{
		5512	double_data[i] = get_real(infile,1); /* y */
		5513	}
		5514	i++;
		5515	}
11806	schaersvoo	5516	for(c = 2 ; c < i-1 ; c = c+2){
14045	schaersvoo	5517	fprintf(js_include_file,"dragstuff.addShape(new Shape(%d,%d,%d,%d,19,[%.f],[%.f],[%.2f],[%.2f],%d,\"%s\",%.2f,\"%s\",%.2f,%d,%d,%d,%d,%d,%.1f,\"%s\",%d,\"%s\",%d,%s,%d,%d,%s,%d,%d));\n",drag_type,click_cnt,onclick,use_snap,decimals,double_data[c],decimals,double_data[c+1],double_data[0],double_data[1],line_width,stroke_color,stroke_opacity,stroke_color,stroke_opacity,1,0,0,0,use_rotate,angle,flytext,font_size,font_family,use_affine,affine_matrix,slider,slider_cnt,rotation_center,use_offset,use_pattern);
11806	schaersvoo	5518	/* click_cnt++; */
		5519	if(onclick > 0){click_cnt++;}
8083	schaersvoo	5520	}
11806	schaersvoo	5521	decimals = find_number_of_digits(precision);
8083	schaersvoo	5522	reset();
11806	schaersvoo	5523	break;
11811	schaersvoo	5524	case YOFFSET:
		5525	/*
		5526	@ yoffset
13829	bpr	5527	@ keyword ; to place the text centered above the text coordinates(x:y) ...
		5528	@ may be used for points or other things requiring centered labels
12063	schaersvoo	5529	@ use <a href="#fontfamily">fontfamily</a> for setting the font
		5530	@ may be active for commands <a href="#text">text</a> and <a href="#string">string</a> (e.g. objects in the drag/drop/onclick-library)
12107	schaersvoo	5531	@%yoffset%size 400,400%xrange -10,10%yrange -10,10%fontfamily 12pt Ariel%string blue,-9,-9,no offset%point -9,-9,red%centered%string blue,-6,-6,centered%point -6,-6,red%xoffset%string blue,-3,-3,xoffset%point -3,-3,red%yoffset%string blue,0,0,yoffset%point 0,0,red%xyoffset%string blue,3,3,xyoffset%point 3,3,red%resetoffset%string blue,6,6,resetoffset%point 6,6,red
11811	schaersvoo	5532	*/
12063	schaersvoo	5533	use_offset = 1;
11811	schaersvoo	5534	break;
		5535
11806	schaersvoo	5536	case YRANGE:
7614	schaersvoo	5537	/*
11806	schaersvoo	5538	@ yrange ymin,ymax
		5539	@ alternative : rangey
		5540	@ if not given 0,ysize (eg in pixels)
7614	schaersvoo	5541	*/
11806	schaersvoo	5542	for(i = 0 ; i<2; i++){
7614	schaersvoo	5543	switch(i){
11806	schaersvoo	5544	case 0: ymin = get_real(infile,0);break;
		5545	case 1: ymax = get_real(infile,1);break;
		5546	default: break;
7614	schaersvoo	5547	}
		5548	}
11806	schaersvoo	5549	if(ymin >= ymax){canvas_error(" yrange is not OK : ymin < ymax !\n");}
		5550	fprintf(js_include_file,"var ymin = %f;var ymax = %f;\n",ymin,ymax);
		5551	found_size_command++;
		5552	break;
		5553
		5554	case YSNAPTOGRID:
7614	schaersvoo	5555	/*
11806	schaersvoo	5556	@ ysnaptogrid
		5557	@ keyword (no arguments required)
		5558	@ a draggable object (use command "drag x\|y\|xy") will snap to the given y-grid values when dragged (mouseup)
		5559	@ in case of userdraw the drawn points will snap to ymajor grid
		5560	@ if no grid is defined ,points will snap to every integer yrange value. (eg snap_y=1)
		5561	@ if you do not want a visible grid, but you only want a 'snaptogrid' with some value...define this grid with opacity 0.
		5562	@ if yminor is defined (use keyword 'axis' to activate yminor), the drawing will snap to yminor <br />use only even dividers in y-minor...for example<br />ysnaptogrid<br />axis<br />grid 2,1,grey,4,4,7,red<br /> will snap on x=0, x=0.5, x=1, x=1.5 ....<br /> will snap on y=0, y=0.25 y=0.5 y=0.75 ...<br />
13959	bpr	5563	@%ysnaptogrid_1%size 400,400%xrange -10,10%yrange -10,10%ysnaptogrid%grid 1,1,grey%linewidth 2%userdraw crosshairs,blue%inputstyle font-size:8px;color:blue%clearbutton delete all crosshairs
		5564	@%ysnaptogrid_2%size 400,400%xrange -10,10%yrange -10,10%ysnaptogrid%grid 1,1,grey%linewidth 3%drag y%points red,0,0,0,0,0,0,0,0,0,0
7614	schaersvoo	5565	*/
14038	schaersvoo	5566	use_snap = 3;
7614	schaersvoo	5567	break;
11080	schaersvoo	5568
7614	schaersvoo	5569	case YLABEL:
		5570	/*
		5571	@ ylabel some_string
8224	bpr	5572	@ will be used to create a (vertical) label for the y-axis (label is in quadrant I)
9379	schaersvoo	5573	@ can only be used together with command <a href="#grid">'grid'</a><br />not depending on keywords 'axis' and 'axisnumbering'
10953	bpr	5574	@ font setting: italic Courier, fontsize will be slightly larger (fontsize + 4)<br />use command "fontsize" to adjust.<br />(command "fontfamily" is not active for this command)
12107	schaersvoo	5575	@%ylabel%size 400,400%xrange -10,10%yrange -10,10%fontsize 8%axis%axisnumbering%precision 1%xlabel x-axis%ylabel y-axis%grid 1,1,grey,2,2,2,red
7614	schaersvoo	5576	*/
		5577	temp = get_string(infile,1);
7653	schaersvoo	5578	fprintf(js_include_file,"var yaxislabel = \"%s\";",temp);
7614	schaersvoo	5579	break;
7735	schaersvoo	5580	case YLOGBASE:
		5581	/*
		5582	@ ylogbase number
		5583	@ sets the logbase number for the y-axis
		5584	@ default value 10
		5585	@ use together with commands ylogscale / xylogscale
		5586	*/
		5587	fprintf(js_include_file,"ylogbase=%d;",(int)(get_real(infile,1)));
		5588	break;
7614	schaersvoo	5589	case YLOGSCALE:
7729	schaersvoo	5590	/*
		5591	@ ylogscale xmajor,xminor,majorcolor,minorcolor
		5592	@ the x/y-range are set using commands 'xrange xmin,xmax' and 'yrange ymin,ymax'
		5593	@ xmajor is the major step on the x-axis; xminor is the divisor for the x-step
		5594	@ the linewidth is set using command 'linewidth int'
		5595	@ the opacity of major / minor grid lines is set by command 'opacity [0-255],[0-255]'
7735	schaersvoo	5596	@ default logbase number = 10 ... when needed , set the logbase number with command 'ylogbase number'
8224	bpr	5597	@ the x/y- axis numbering is triggered by keyword 'axisnumbering'<ul><li>use command 'precision' before 'ylogscale' command to set the precision (decimals) of the axis numbering</li><li>use commands 'xlabel some_text' and/or 'ylabel some_text' for text on axis : use command 'fontsize int' to set the fontsize (default 12px)</li><li>use command 'fontfamily fnt_family_string' to set the fonts for axis-numbering</li><li>use command'fontcolor' to set the colour</li></ul>
11088	schaersvoo	5598	@ note: the complete canvas will be used for the 'log paper'
		5599	@ note: userdrawings are done in the log paper, e.g. javascript:read_canvas() will return the real values
		5600	@ note: command 'mouse color,fontsize' will show the real values in the logpaper.<br />\
		5601	@ note: when using something like 'yrange 0.0001,0.01'...combined with commands 'mouse color,fontsize' and/or 'userdraw type,color'...<br /> make sure the precision is set accordingly (eg command 'precision 10000')
		5602	@ note: in case of userdraw , the use of keyword 'userinput_xy' may be handy !
9383	schaersvoo	5603	@ <b>attention</b>: keyword 'snaptogrid' may not lead to the desired result...
7729	schaersvoo	5604	*/
11972	schaersvoo	5605	use_axis_numbering++;if(use_axis_numbering > 1){use_axis_numbering = 1;}
7729	schaersvoo	5606	if( js_function[DRAW_GRID] == 1 ){canvas_error("only one type of grid is allowed...");}
		5607	if( js_function[DRAW_YLOGSCALE] != 1 ){ js_function[DRAW_YLOGSCALE] = 1;}
		5608	for(i=0;i<4;i++){
		5609	switch(i){
		5610	case 0: double_data[0] = get_real(infile,0);break; /* xmajor */
		5611	case 1: int_data[0] = (int) (get_real(infile,0));break; /* xminor */
		5612	case 2: stroke_color = get_color(infile,0); break;
8224	bpr	5613	case 3: fill_color = get_color(infile,1);
7779	schaersvoo	5614	string_length = snprintf(NULL,0,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
7729	schaersvoo	5615	tmp_buffer = my_newmem(string_length+1);
7779	schaersvoo	5616	snprintf(tmp_buffer,string_length,"draw_grid%d(%d,%d,\"%s\",\"%s\",%.2f,%.2f,%d,\"%s\",\"%s\",%d,%f,%d,%d); ",canvas_root_id,GRID_CANVAS,line_width,stroke_color,fill_color,stroke_opacity,fill_opacity,font_size,font_family,font_color,use_axis_numbering,double_data[0],int_data[0],precision);
7735	schaersvoo	5617	fprintf(js_include_file,"use_ylogscale=1;snap_x = %f;snap_y = ylogbase;",double_data[0]/int_data[0]);
7729	schaersvoo	5618	add_to_buffer(tmp_buffer);
		5619	break;
		5620	default:break;
		5621	}
		5622	}
7614	schaersvoo	5623	break;
11806	schaersvoo	5624
		5625	case YUNIT:
7735	schaersvoo	5626	/*
11806	schaersvoo	5627	@ yunit some_unit_for_y-values
		5628	@ unicode allowed (no html code)
		5629	@ use together with command mousey
		5630	@ will display the cursor y-coordinate in 'unit'
7735	schaersvoo	5631	*/
11806	schaersvoo	5632	fprintf(js_include_file,"unit_y = \"%s\";",get_string(infile,1));
		5633	break;
		5634
		5635	case ZOOM:
		5636	/*
		5637	@ zoom button_color
		5638	@ introduce a very small 'controlpanel' at the lower right corner
		5639	@ giving six 15×15px 'active' rectangle areas<br />(for ×,leftarrow,rightarrow,uparrow,downarrow and a '-' and a '+' sign ) for zooming and/or panning of the image
		5640	@ the 'x' symbol will do a 'location.reload' of the page, and thus reset all canvas drawings.
		5641	@ choose an appropriate colour, so the small 'x,arrows,-,+' are clearly visible
		5642	@ command 'opacity' may be used to set stroke_opacity of 'buttons
		5643	@ note: use command 'zoom' at the end of your script code (the same is true for command 'mouse')
		5644	@ note: only objects that may be set draggable / clickable will be zoomed / panned
		5645	@ note: when an object is dragged, zooming / panning will cause the coordinates to be reset to the original position :( <br />e.g. dragging / panning will get lost. (array with 'drag data' is erased)<br />This is a design flaw and not a feature !!
		5646	*/
		5647	fprintf(js_include_file,"use_pan_and_zoom = 1;");
		5648	use_pan_and_zoom = TRUE;
		5649	stroke_color = get_color(infile,1);
		5650	/* we use BG_CANVAS (0) */
		5651	add_zoom_buttons(js_include_file,canvas_root_id,stroke_color,stroke_opacity);
		5652	done = TRUE;
		5653	break;
		5654
		5655	/* ready */
7614	schaersvoo	5656	default:sync_input(infile);
		5657	break;
		5658	}
8224	bpr	5659	}
7614	schaersvoo	5660	/* we are done parsing script file */
7983	schaersvoo	5661	/* check if xrange / yrange was set explicit ... or use xmin=0 xmax=xsize ymin=0 ymax=ysize : Quadrant I */
		5662	if( found_size_command == 1 ){
		5663	fprintf(js_include_file,"var xmin = 0;var xmax = %d;var ymin = 0;var ymax = %d",xsize,ysize);
		5664	}
		5665	else
		5666	{
		5667	if( found_size_command != 3 ){
8222	schaersvoo	5668	canvas_error("Please specify both xrange and yrange ...");
7983	schaersvoo	5669	}
		5670	}
8257	schaersvoo	5671
8222	schaersvoo	5672	/* if needed, add generic draw functions (grid / xml etc) to buffer : these are no draggable/clickable shapes / objects ! */
11021	schaersvoo	5673	add_javascript_function(js_function,canvas_root_id);
7614	schaersvoo	5674	/* add read_canvas() etc functions if needed */
8257	schaersvoo	5675	if( reply_format > 0 ){ add_read_canvas(canvas_root_id,reply_format,reply_precision);}
7797	schaersvoo	5676	if( use_pan_and_zoom == TRUE ){
		5677	/* in case of zooming ... */
13970	obado	5678	fprintf(js_include_file,"\n/* some extra global stuff : need to rethink panning and zooming !!! */\n\
7797	schaersvoo	5679	precision = %d;var xmin_start=xmin;var xmax_start=xmax;\
7729	schaersvoo	5680	var ymin_start=ymin;var ymax_start=xmax;\
		5681	var zoom_x_increment=0;var zoom_y_increment=0;\
		5682	var pan_x_increment=0;var pan_y_increment=0;\
		5683	if(use_ylogscale == 0 ){\
7956	schaersvoo	5684	zoom_x_increment = (xmax - xmin)/20;zoom_y_increment = (ymax - ymin)/20;pan_x_increment = (xmax - xmin)/20;pan_y_increment = (ymax - ymin)/20;\
7729	schaersvoo	5685	}else{\
		5686	zoom_x_increment = (xmax - xmin)/20;\
		5687	pan_x_increment = (xmax - xmin)/20;\
		5688	};\
9406	schaersvoo	5689	var zoom_xy=[xmin,xmax,ymin,ymax];\
7653	schaersvoo	5690	function start_canvas%d(type){\
9406	schaersvoo	5691	zoom_xy=[xmin,xmax,ymin,ymax];\
7653	schaersvoo	5692	switch(type){\
7729	schaersvoo	5693	case 0:xmin = xmin + zoom_x_increment;ymin = ymin + zoom_y_increment;xmax = xmax - zoom_x_increment;ymax = ymax - zoom_y_increment;break;\
		5694	case 1:xmin = xmin - zoom_x_increment;ymin = ymin - zoom_y_increment;xmax = xmax + zoom_x_increment;ymax = ymax + zoom_y_increment;break;\
7653	schaersvoo	5695	case 2:xmin = xmin - pan_x_increment;ymin = ymin ;xmax = xmax - pan_x_increment;ymax = ymax;break;\
		5696	case 3:xmin = xmin + pan_x_increment;ymin = ymin ;xmax = xmax + pan_x_increment;ymax = ymax;break;\
		5697	case 4:xmin = xmin;ymin = ymin - pan_y_increment ;xmax = xmax;ymax = ymax - pan_y_increment;break;\
		5698	case 5:xmin = xmin;ymin = ymin + pan_y_increment ;xmax = xmax;ymax = ymax + pan_y_increment;break;\
11004	schaersvoo	5699	case 6:xmin = xmin_start; xmax = xmax_start;ymin = ymin_start;ymax = ymax_start;break;\
7653	schaersvoo	5700	default:break;\
		5701	};\
		5702	if(xmax<=xmin){xmin=xmin_start;xmax=xmax_start;};\
		5703	if(ymax<=ymin){ymin=ymin_start;ymax=ymax_start;};\
9406	schaersvoo	5704	try{dragstuff.Zoom(xmin,xmax,ymin,ymax);}catch(e){};\
11088	schaersvoo	5705	if(typeof(redraw_all%d) === 'function' ){redraw_all%d(zoom_xy);}\
9406	schaersvoo	5706	%s ;\
7653	schaersvoo	5707	};\
7797	schaersvoo	5708	start_canvas%d(333);\
9438	schaersvoo	5709	};\
13970	obado	5710	\n/* end wims_canvas_function */\n\
9406	schaersvoo	5711	wims_canvas_function%d();\n",precision,canvas_root_id,canvas_root_id,canvas_root_id,buffer,canvas_root_id,canvas_root_id);
7797	schaersvoo	5712	}
		5713	else
		5714	{
		5715	/* no zoom, just add buffer */
13970	obado	5716	fprintf(js_include_file,"\n/* add buffer */\n\
7797	schaersvoo	5717	%s\
		5718	};\n\
13970	obado	5719	/* end wims_canvas_function */\n\
7797	schaersvoo	5720	wims_canvas_function%d();\n",buffer,canvas_root_id);
		5721	}
7614	schaersvoo	5722	/* done writing the javascript include file */
		5723	fclose(js_include_file);
		5724
		5725	}
		5726
		5727	/* if using a tooltip, this should always be printed to the .phtml file, so stdout /
9329	schaersvoo	5728	if( use_tooltip > 0 ){
		5729	if( use_tooltip == 1 ){
		5730	add_js_tooltip(canvas_root_id,tooltip_text,bgcolor,xsize,ysize);
		5731	}
		5732	else
		5733	{
		5734	if( use_tooltip == 2 ){
		5735	add_js_popup(canvas_root_id,xsize,ysize,getfile_cmd);
		5736	}
		5737	}
		5738	}
7614	schaersvoo	5739	exit(EXIT_SUCCESS);
		5740	}
		5741	/* end main() */
		5742
		5743	/******************************************************************************
		5744	**
		5745	** sync_input
		5746	**
		5747	** synchronises input line - reads to end of line, leaving file pointer
		5748	** at first character of next line.
		5749	**
		5750	** Used by:
		5751	** main program - error handling.
		5752	**
		5753	******************************************************************************/
		5754	void sync_input(FILE *infile)
		5755	{
		5756	int c = 0;
		5757
7658	schaersvoo	5758	if( c == '\n' \|\| c == ';' ) return;
		5759	while( ( (c=getc(infile)) != EOF ) && (c != '\n') && (c != '\r') && (c != ';')) ;
7614	schaersvoo	5760	if( c == EOF ) finished = 1;
7658	schaersvoo	5761	if( c == '\n' \|\| c == '\r' \|\| c == ';') line_number++;
7614	schaersvoo	5762	return;
		5763	}
		5764
		5765	/******************************************************************************/
		5766
		5767	char str_replace(const char str, const char old, const char new){
		5768	/* http://creativeandcritical.net/str-replace-c/ */
		5769	if(strlen(str) > MAX_BUFFER){canvas_error("string argument too big");}
		5770	char ret, r;
		5771	const char p, q;
		5772	size_t oldlen = strlen(old);
		5773	size_t count = 0;
		5774	size_t retlen = 0;
		5775	size_t newlen = strlen(new);
		5776	if (oldlen != newlen){
		5777	for (count = 0, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen){
		5778	count++;
		5779	retlen = p - str + strlen(p) + count * (newlen - oldlen);
		5780	}
8224	bpr	5781	}
7614	schaersvoo	5782	else
		5783	{
		5784	retlen = strlen(str);
		5785	}
8224	bpr	5786
7614	schaersvoo	5787	if ((ret = malloc(retlen + 1)) == NULL){
		5788	ret = NULL;
		5789	canvas_error("string argument is NULL");
		5790	}
		5791	else
		5792	{
		5793	for (r = ret, p = str; (q = strstr(p, old)) != NULL; p = q + oldlen) {
		5794	size_t l = q - p;
		5795	memcpy(r, p, l);
		5796	r += l;
		5797	memcpy(r, new, newlen);
		5798	r += newlen;
		5799	}
		5800	strcpy(r, p);
		5801	}
		5802	return ret;
		5803	}
		5804
		5805	/******************************************************************************/
7848	bpr	5806
7614	schaersvoo	5807	char get_color(FILE infile , int last){
		5808	int c,i = 0,is_hex = 0;
		5809	char temp[MAX_COLOR_STRING], *string;
8305	schaersvoo	5810	const char *not_allowed = "0123456789";
10891	schaersvoo	5811	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != ',' ) && ( c != ';' ) && ( c != '\t' ) ){
7614	schaersvoo	5812	if( i > MAX_COLOR_STRING ){ canvas_error("colour string is too big ... ? ");}
		5813	if( c == '#' ){
		5814	is_hex = 1;
		5815	}
		5816	if( c != ' '){
8304	schaersvoo	5817	if( is_hex == 0 ){if(strchr(not_allowed,c) != 0){canvas_error("found something like a number...but is should have been a colour or #hex color number...<br />Do not use R,G,B !!! ");}}
7614	schaersvoo	5818	temp[i]=tolower(c);
		5819	i++;
		5820	}
		5821	}
10891	schaersvoo	5822	if( ( c == '\n' \|\| c == EOF \|\| c == ';' \|\| c == '\t' ) && last == 0){canvas_error("expecting more arguments in command");}
		5823	if( c == '\n' \|\| c == ';' \|\| c == '\t' ){ done = TRUE; line_number++; }
7614	schaersvoo	5824	if( c == EOF ){finished = 1;}
		5825	if( finished == 1 && last != 1 ){ canvas_error("expected more arguments");}
		5826	temp[i]='\0';
		5827	if( strlen(temp) == 0 ){ canvas_error("expected a colorname or hexnumber, but found nothing !!");}
		5828	if( is_hex == 1 ){
		5829	char red[3], green[3], blue[3];
		5830	red[0] = toupper(temp[1]); red[1] = toupper(temp[2]); red[2] = '\0';
		5831	green[0] = toupper(temp[3]); green[1] = toupper(temp[4]); green[2] = '\0';
		5832	blue[0] = toupper(temp[5]); blue[1] = toupper(temp[6]); blue[2] = '\0';
		5833	int r = (int) strtol(red, NULL, 16);
		5834	int g = (int) strtol(green, NULL, 16);
		5835	int b = (int) strtol(blue, NULL, 16);
		5836	string = (char *)my_newmem(12);
		5837	snprintf(string,11,"%d,%d,%d",r,g,b);
		5838	return string;
		5839	}
		5840	else
		5841	{
		5842	string = (char *)my_newmem(sizeof(temp));
		5843	snprintf(string,sizeof(temp),"%s",temp);
8304	schaersvoo	5844	for( i = 0; i < NUMBER_OF_COLORNAMES ; i++ ){
7614	schaersvoo	5845	if( strcmp( colors[i].name , string ) == 0 ){
		5846	return colors[i].rgb;
		5847	}
		5848	}
8304	schaersvoo	5849	canvas_error("I was expecting a color name or hexnumber...but found nothing.");
7614	schaersvoo	5850	}
8304	schaersvoo	5851	return "0,0,255";
7614	schaersvoo	5852	}
		5853
		5854	char get_string(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		5855	int c,i=0;
		5856	char temp[MAX_BUFFER], *string;
10891	schaersvoo	5857	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != '\t') ){
7614	schaersvoo	5858	temp[i]=c;
		5859	i++;
		5860	if(i > MAX_BUFFER){ canvas_error("string size too big...repeat command to fit string");break;}
		5861	}
10891	schaersvoo	5862	if( ( c == '\n' \|\| c == '\t' \|\| c == EOF ) && last == 0){canvas_error("expecting more arguments in command");}
		5863	if( c == '\n' \|\| c == '\t') { done = TRUE; line_number++; }
11022	schaersvoo	5864	if( c == EOF ) {finished = 1;}
7614	schaersvoo	5865	temp[i]='\0';
11022	schaersvoo	5866	if( strlen(temp) == 0 && last != 3 ){ canvas_error("expected a word or string, but found nothing !!");}
7614	schaersvoo	5867	string=(char *)my_newmem(strlen(temp));
		5868	snprintf(string,sizeof(temp),"%s",temp);
		5869	return string;
		5870	}
		5871
		5872	char get_string_argument(FILE infile,int last){ /* last = 0 : more arguments ; last=1 final argument */
		5873	int c,i=0;
		5874	char temp[MAX_BUFFER], *string;
10891	schaersvoo	5875	while(( (c=getc(infile)) != EOF ) && ( c != '\n') && ( c != '\t') && ( c != ',')){
7614	schaersvoo	5876	temp[i]=c;
		5877	i++;
		5878	if(i > MAX_BUFFER){ canvas_error("string size too big...will cut it off");break;}
		5879	}
8224	bpr	5880	if( ( c == '\n' \|\| c == EOF) && last == 0){canvas_error("expecting more arguments in command");}
10891	schaersvoo	5881	if( c == '\n' \|\| c == '\t' ) { line_number++; }
7614	schaersvoo	5882	if( c == EOF ) {finished = 1;}
9478	schaersvoo	5883	if( finished == 1 && last == 0 ){ canvas_error("expected more arguments");}
7614	schaersvoo	5884	temp[i]='\0';
10953	bpr	5885	/*
8322	schaersvoo	5886	17.10.2014 removed (question Perrin)
		5887	may cause some unwanted effects...
7614	schaersvoo	5888	if( strlen(temp) == 0 ){ canvas_error("expected a word or string (without comma) , but found nothing !!");}
8322	schaersvoo	5889	*/
7614	schaersvoo	5890	string=(char *)my_newmem(sizeof(temp));
		5891	snprintf(string,sizeof(temp),"%s",temp);
		5892	done = TRUE;
		5893	return string;
		5894	}
		5895
		5896	double get_real(FILE infile, int last){ / accept anything that looks like an number ? last = 0 : more arguments ; last=1 final argument */
		5897	int c,i=0,found_calc = 0;
		5898	double y;
		5899	char tmp[MAX_INT];
10953	bpr	5900	/*
		5901	these things are 'allowed functions' : *,^,+,-,/,(,),e,arc,cos,tan,pi,log,ln,sqrt,abs
8383	schaersvoo	5902	but there should be a better way to avoid segfaults !
8348	schaersvoo	5903	*/
		5904	const char allowed = "earcostanpilogqb+-/^()";/* assuming these are allowed stuff in a 'number'*/
		5905	const char not_allowed = "#dfhjkmuvwxyz{}[]%&~!$";/ avoid segmentation faults in a "atof()" and "wims eval" */
10891	schaersvoo	5906	while(( (c=getc(infile)) != EOF ) && ( c != ',') && (c != '\n') && (c != '\t') && ( c != ';')){
7614	schaersvoo	5907	if( c != ' ' ){
8224	bpr	5908	if( i == 0 && c == '+' ){
7614	schaersvoo	5909	continue;
8224	bpr	5910	}
7614	schaersvoo	5911	else
		5912	{
8304	schaersvoo	5913	c = tolower(c);
		5914	if( strchr(not_allowed,c) != 0 ){canvas_error("found a character not associated with a number...");}
		5915	if( strchr(allowed,c) != 0 ){found_calc = 1;}/* hand the string over to wims eval() */
7614	schaersvoo	5916	tmp[i] = c;
		5917	i++;
		5918	}
		5919	}
		5920	if( i > MAX_INT - 1){canvas_error("number too large");}
		5921	}
10891	schaersvoo	5922	if( ( c == '\n' \|\| c == EOF \|\| c == ';' \|\| c == '\t' ) && last == 0){canvas_error("expecting more arguments in command");}
		5923	if( c == '\n' \|\| c == ';' \|\| c == '\t' ){ done = TRUE; line_number++; }
7614	schaersvoo	5924	if( c == EOF ){done = TRUE ; finished = 1;}
		5925	tmp[i]='\0';
		5926	if( strlen(tmp) == 0 ){canvas_error("expected a number , but found nothing !!");}
8304	schaersvoo	5927	if( found_calc == 1 ){ /* use wims eval to calculate 2pi/3 /
7848	bpr	5928	void *f = eval_create(tmp);
7614	schaersvoo	5929	assert(f);if( f == NULL ){canvas_error("I'm having trouble parsing your \"expression\" ") ;}
7848	bpr	5930	y = eval_x(f, 1);
7614	schaersvoo	5931	/* if function is bogus; y = 1 : so no core dumps */
7848	bpr	5932	eval_destroy(f);
7614	schaersvoo	5933	}
		5934	else
		5935	{
		5936	y = atof(tmp);
		5937	}
		5938	return y;
		5939	}
8304	schaersvoo	5940
13829	bpr	5941
7614	schaersvoo	5942	void canvas_error(char *msg){
8383	schaersvoo	5943	fprintf(stdout,"\n</script><hr /><span style=\"color:red\">FATAL syntax error:line %d : %s</span><hr />",line_number,msg);
7614	schaersvoo	5944	finished = 1;
		5945	exit(EXIT_SUCCESS);
		5946	}
		5947
		5948
		5949	/* convert x/y coordinates to pixel */
		5950	int x2px(double x){
		5951	return xxsize/(xmax - xmin) - xsizexmin/(xmax - xmin);
		5952	}
		5953
		5954	int y2px(double y){
		5955	return -1yysize/(ymax - ymin) + ymax*ysize/(ymax - ymin);
		5956	}
		5957
		5958	double px2x(int x){
		5959	return (x*(xmax - xmin)/xsize + xmin);
		5960	}
		5961	double px2y(int y){
		5962	return (y*(ymax - ymin)/ysize + ymin);
		5963	}
		5964
		5965	void add_to_buffer(char *tmp){
		5966	if( tmp == NULL \|\| tmp == 0 ){ canvas_error("nothing to add_to_buffer()...");}
		5967	/* do we have enough space left in buffer[MAX_BUFFER] ? */
		5968	int space_left = (int) (sizeof(buffer) - strlen(buffer));
		5969	if( space_left > strlen(tmp)){
		5970	strncat(buffer,tmp,space_left - 1);/* add safely "tmp" to the string buffer */
		5971	}
		5972	else
		5973	{
		5974	canvas_error("buffer is too big\n");
		5975	}
		5976	tmp = NULL;free(tmp);
		5977	return;
		5978	}
		5979
		5980	void reset(){
14038	schaersvoo	5981	use_filled = FALSE;
		5982	use_dashed = FALSE;
		5983	use_rotate = FALSE;
8379	schaersvoo	5984	onclick = 0;
7614	schaersvoo	5985	}
		5986
		5987
		5988
		5989	/* What reply format in read_canvas();
		5990
		5991	note:if userdraw is combined with inputfields...every "userdraw" based answer will append "\n" and inputfield.value()
		5992	1 = x1,x2,x3,x4....x_n
		5993	y1,y2,y3,y4....y_n
		5994
		5995	x/y in pixels
		5996
		5997	2 = x1,x2,x3,x4....x_n
		5998	y1,y2,y3,y4....y_n
		5999	x/y in xrange / yrange coordinate system
		6000
		6001	3 = x1,x2,x3,x4....x_n
		6002	y1,y2,y3,y4....y_n
		6003	r1,r2,r3,r4....r_n
		6004
8224	bpr	6005	x/y in pixels
7614	schaersvoo	6006	r in pixels
		6007
		6008	4 = x1,x2,x3,x4....x_n
		6009	y1,y2,y3,y4....y_n
		6010	r1,r2,r3,r4....r_n
		6011
		6012	x/y in xrange / yrange coordinate system
		6013	r in pixels
		6014
		6015	5 = Ax1,Ax2,Ax3,Ax4....Ax_n
		6016	Ay1,Ay2,Ay3,Ay4....Ay_n
		6017	Bx1,Bx2,Bx3,Bx4....Bx_n
		6018	By1,By2,By3,By4....By_n
		6019	Cx1,Cx2,Cx3,Cx4....Cx_n
		6020	Cy1,Cy2,Cy3,Cy4....Cy_n
		6021	....
		6022	Zx1,Zx2,Zx3,Zx4....Zx_n
		6023	Zy1,Zy2,Zy3,Zy4....Zy_n
8224	bpr	6024
7614	schaersvoo	6025	x/y in pixels
		6026
		6027	6 = Ax1,Ax2,Ax3,Ax4....Ax_n
		6028	Ay1,Ay2,Ay3,Ay4....Ay_n
		6029	Bx1,Bx2,Bx3,Bx4....Bx_n
		6030	By1,By2,By3,By4....By_n
		6031	Cx1,Cx2,Cx3,Cx4....Cx_n
		6032	Cy1,Cy2,Cy3,Cy4....Cy_n
		6033	....
		6034	Zx1,Zx2,Zx3,Zx4....Zx_n
		6035	Zy1,Zy2,Zy3,Zy4....Zy_n
		6036
		6037	x/y in xrange / yrange coordinate system
8224	bpr	6038
7614	schaersvoo	6039	7 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
8224	bpr	6040
7614	schaersvoo	6041	x/y in pixels
		6042
		6043	8 = x1:y1,x2:y2,x3:y3,x4:y4...x_n:y_n
8224	bpr	6044
7614	schaersvoo	6045	x/y in xrange / yrange coordinate system
		6046
8224	bpr	6047	9 = x1:y1:r1,x2:y2:r2,x3:y3:r3,x4:y4:r3...x_n:y_n:r_n
7614	schaersvoo	6048
		6049	x/y in pixels
		6050
14044	schaersvoo	6051	10 = x1 ; y1 ;r1 \n x2;y2;r2 \n x3;y3;r3 \n ...x_n:y_n:r_n \n
7614	schaersvoo	6052
		6053	x/y in xrange / yrange coordinate system
14044	schaersvoo	6054	r is userdraw_radius
7614	schaersvoo	6055
		6056	11 = Ax1,Ay1,Ax2,Ay2
		6057	Bx1,By1,Bx2,By2
		6058	Cx1,Cy1,Cx2,Cy2
		6059	Dx1,Dy1,Dx2,Dy2
		6060	......
		6061	Zx1,Zy1,Zx2,Zy2
8224	bpr	6062
7614	schaersvoo	6063	x/y in xrange / yrange coordinate system
		6064
		6065	12 = Ax1,Ay1,Ax2,Ay2
		6066	Bx1,By1,Bx2,By2
		6067	Cx1,Cy1,Cx2,Cy2
		6068	Dx1,Dy1,Dx2,Dy2
		6069	......
		6070	Zx1,Zy1,Zx2,Zy2
8224	bpr	6071
7614	schaersvoo	6072	x/y in pixels
		6073
		6074	13 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2,Cx1:Cy1:Cx2:Cy2,Dx1:Dy1:Dx2:Dy2, ... ,Zx1:Zy1:Zx2:Zy2
		6075
		6076	x/y in xrange / yrange coordinate system
		6077	14 = Ax1:Ay1:Ax2:Ay2,Bx1:By1:Bx2:By2....Zx1:Zy1:Zx2:Zy2
		6078	x/y in pixels
		6079	15 = reply from inputfields,textareas
		6080	reply1,reply2,reply3,...,reply_n
7984	schaersvoo	6081	only fields set write (a.g. will not read 'readonly' inputfield values'
7614	schaersvoo	6082
		6083	16 = read mathml inputfields only
		6084
11080	schaersvoo	6085	17 = read userdraw text only (x1,y1,text1\nx2,y2,text2..\n.x_n,y_n,text_n
7614	schaersvoo	6086	when ready : calculate size_t of string via snprintf(NULL,0,"blah blah...");
		6087
		6088	18 = read clock(s) : H1:M1:S1,H2:M2:S2,...H_n:M_n:S_n
		6089	19 = return clicked object number (analogue to shape-library onclick)
		6090	20 = return x/y-data in x-range/y-range of all 'draggable' images
		6091	21 = return verbatim coordinates (x1:y1) (x2:y2)...(x_n:y_n)
		6092	22 = array : x1,y1,x2,y2,x3,y3,x4,y4...x_n,y_n
		6093	x/y in xrange / yrange coordinate system
8224	bpr	6094	23 = answertype for a polyline : remove multiple occurences due to reclick on a point to create next polyline segment
7984	schaersvoo	6095	24 = read all inputfield values: even those set 'readonly'
8224	bpr	6096	25 = return all userdrawn arcs in degrees:
		6097	26 = return all userdrawn arcs in radians:
11080	schaersvoo	6098	27 = return (only) userdraw inputfields array: x1,y1,text1 \n x2,y2,text2...
8322	schaersvoo	6099	28 = x1,y1,r1,x2,y2,r2...x_n,y_n,r_n
10953	bpr	6100	x/y/r in xrange / yrange coordinate system: may be used to reinput into command
8322	schaersvoo	6101	'circles color,x1,y1,r1,x2,y2,r2...x_n,y_n,r_n'
		6102	will not return anything else (e.g. no inputfields , text etc)
10953	bpr	6103	29 = mulidraw read :
		6104
7614	schaersvoo	6105	*/
		6106
14044	schaersvoo	6107	/*
		6108	SCHAERSVOORDE : replyformat 2,7,8,21,22,23,24
		6109	USERDRAW DEFAULTS: 2,6,8,10,11,15,16,17,18,19,20,23,24,25,27,29,31
		6110	OEF : 22,23,28
		6111	*/
8257	schaersvoo	6112	void add_read_canvas(int canvas_root_id,int type_reply,int reply_precision){
14038	schaersvoo	6113	/* just 1 reply type allowed...except for format 34 !!! */
8074	schaersvoo	6114	fprintf(js_include_file,"\
13970	obado	6115	\n/* begin set_reply_precision() */\n\
8074	schaersvoo	6116	function set_reply_precision(){\
		6117	var len = userdraw_x.length;\
		6118	var prec = %d;\
		6119	for(var p = 0 ; p < len ; p++ ){\
		6120	userdraw_x[p] = (Math.round(prec*userdraw_x[p]))/prec;\
		6121	userdraw_y[p] = (Math.round(prec*userdraw_y[p]))/prec;\
		6122	};\
		6123	len = userdraw_radius.length;\
		6124	if( len > 0 ){\
		6125	for(var p = 0 ; p < len ; p++ ){\
		6126	userdraw_radius[p] = (Math.round(prec*userdraw_radius[p]))/prec;\
		6127	};\
		6128	};\
		6129	};",reply_precision);
7963	schaersvoo	6130
7614	schaersvoo	6131	switch(type_reply){
8224	bpr	6132	/*
7614	schaersvoo	6133	answers may have:
		6134	x-values,y-values,r-values,input-fields,mathml-inputfields,text-typed answers
		6135	*/
		6136	case 1: fprintf(js_include_file,"\
13970	obado	6137	\n/* begin function 1 read_canvas%d() */\n\
8257	schaersvoo	6138	read_canvas%d = function(){\
7614	schaersvoo	6139	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	6140	set_reply_precision();\
7614	schaersvoo	6141	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		6142	var p = 0;var input_reply = new Array();\
		6143	if( document.getElementById(\"canvas_input0\")){\
		6144	var t = 0;\
		6145	while(document.getElementById(\"canvas_input\"+t)){\
		6146	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6147	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6148	p++;\
		6149	};\
		6150	t++;\
		6151	};\
		6152	};\
11088	schaersvoo	6153	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6154	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply + \"\\n\"+userdraw_text;\
		6155	}\
		6156	else\
		6157	{\
		6158	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+input_reply;\
		6159	}\
		6160	}\
		6161	else\
		6162	{\
11088	schaersvoo	6163	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6164	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_text;\
		6165	}\
		6166	else\
		6167	{\
		6168	return userdraw_x+\"\\n\"+userdraw_y;\
		6169	}\
		6170	};\
8108	schaersvoo	6171	};\n\
13970	obado	6172	/* end function 1 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6173	break;
		6174	case 2: fprintf(js_include_file,"\
13970	obado	6175	\n/* begin function 2 read_canvas%d() */\n\
8257	schaersvoo	6176	read_canvas%d = function(){\
7614	schaersvoo	6177	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	6178	set_reply_precision();\
7614	schaersvoo	6179	var reply_x = new Array();var reply_y = new Array();var p = 0;\
8074	schaersvoo	6180	var prec = %d;\
7614	schaersvoo	6181	while(userdraw_x[p]){\
8074	schaersvoo	6182	reply_x[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
		6183	reply_y[p] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;\
7614	schaersvoo	6184	p++;\
		6185	};\
11806	schaersvoo	6186	if(p == 0){return;};\
7614	schaersvoo	6187	if( document.getElementById(\"canvas_input0\")){\
		6188	var p = 0;var input_reply = new Array();\
		6189	if( document.getElementById(\"canvas_input0\")){\
		6190	var t = 0;\
		6191	while(document.getElementById(\"canvas_input\"+t)){\
		6192	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6193	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6194	p++;\
		6195	};\
		6196	t++;\
		6197	};\
		6198	};\
11088	schaersvoo	6199	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6200	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6201	}\
		6202	else\
		6203	{\
		6204	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		6205	}\
		6206	}\
		6207	else\
		6208	{\
11088	schaersvoo	6209	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6210	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		6211	}\
		6212	else\
		6213	{\
		6214	return reply_x+\"\\n\"+reply_y;\
		6215	};\
		6216	};\
8108	schaersvoo	6217	};\n\
13970	obado	6218	/* end function 2 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6219	break;
		6220	case 3: fprintf(js_include_file,"\
13970	obado	6221	\n/* begin function 3 read_canvas%d() */\n\
8257	schaersvoo	6222	read_canvas%d = function(){\
7614	schaersvoo	6223	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
8074	schaersvoo	6224	set_reply_precision();\
7614	schaersvoo	6225	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		6226	var p = 0;var input_reply = new Array();\
		6227	if( document.getElementById(\"canvas_input0\")){\
		6228	var t = 0;\
		6229	while(document.getElementById(\"canvas_input\"+t)){\
		6230	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6231	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6232	p++;\
		6233	};\
		6234	t++;\
		6235	};\
		6236	};\
11088	schaersvoo	6237	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6238	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6239	}\
		6240	else\
		6241	{\
		6242	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		6243	}\
		6244	}\
		6245	else\
		6246	{\
11088	schaersvoo	6247	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6248	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius+\"\\n\"+userdrawW_text;\
		6249	}\
		6250	else\
		6251	{\
		6252	return userdraw_x+\"\\n\"+userdraw_y+\"\\n\"+userdraw_radius;\
		6253	}\
		6254	}\
8108	schaersvoo	6255	};\n\
13970	obado	6256	/* end function 3 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6257	break;
		6258	case 4: fprintf(js_include_file,"\
13970	obado	6259	\n/* begin function 4 read_canvas%d() */\n\
8257	schaersvoo	6260	read_canvas%d = function(){\
8074	schaersvoo	6261	var prec = %d;\
7614	schaersvoo	6262	var reply_x = new Array();var reply_y = new Array();var p = 0;\
		6263	while(userdraw_x[p]){\
8074	schaersvoo	6264	reply_x[p] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
		6265	reply_y[p] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;;\
7614	schaersvoo	6266	p++;\
		6267	};\
11806	schaersvoo	6268	if(p == 0){return;};\
7614	schaersvoo	6269	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		6270	var p = 0;var input_reply = new Array();\
		6271	if( document.getElementById(\"canvas_input0\")){\
		6272	var t = 0;\
		6273	while(document.getElementById(\"canvas_input\"+t)){\
		6274	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6275	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6276	p++;\
		6277	};\
		6278	t++;\
		6279	};\
		6280	};\
11088	schaersvoo	6281	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6282	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6283	}\
		6284	else\
		6285	{\
		6286	return reply_x+\"\\n\"+reply_y +\"\\n\"+userdraw_radius+\"\\n\"+input_reply;\
		6287	}\
		6288	}\
		6289	else\
		6290	{\
11088	schaersvoo	6291	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6292	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius+\"\\n\"+userdraw_text;\
		6293	}\
		6294	else\
		6295	{\
		6296	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_radius;\
		6297	}\
		6298	};\
8108	schaersvoo	6299	};\n\
13970	obado	6300	/* end function 4 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6301	break;
8224	bpr	6302	/*
		6303	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		6304	used for userdraw multiple paths
7614	schaersvoo	6305	*/
		6306	case 5: fprintf(js_include_file,"\
13970	obado	6307	\n/* begin function 5 read_canvas%d() */\n\
8257	schaersvoo	6308	read_canvas%d = function(){\
8074	schaersvoo	6309	set_reply_precision();\
7614	schaersvoo	6310	var p = 0;\
		6311	var reply = \"\";\
		6312	for(p = 0; p < userdraw_x.length;p++){\
		6313	if(userdraw_x[p] != null ){\
		6314	reply = reply + userdraw_x[p]+\"\\n\"+userdraw_y[p]+\"\\n\";\
		6315	};\
		6316	};\
11806	schaersvoo	6317	if(p == 0){return;};\
7614	schaersvoo	6318	userdraw_x = [];userdraw_y = [];\
		6319	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		6320	var p = 0;var input_reply = new Array();\
		6321	if( document.getElementById(\"canvas_input0\")){\
		6322	var t = 0;\
		6323	while(document.getElementById(\"canvas_input\"+t)){\
		6324	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6325	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6326	p++;\
		6327	};\
		6328	t++;\
		6329	};\
		6330	};\
11088	schaersvoo	6331	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6332	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6333	}\
		6334	else\
		6335	{\
		6336	return reply +\"\\n\"+input_reply;\
		6337	}\
		6338	}\
		6339	else\
		6340	{\
11088	schaersvoo	6341	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6342	return reply+\"\\n\"+userdraw_text;\
		6343	}\
		6344	else\
		6345	{\
		6346	return reply;\
		6347	}\
		6348	};\
8108	schaersvoo	6349	};\n\
13970	obado	6350	/* end function 5 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6351	break;
8224	bpr	6352	/*
		6353	attention: we reset userdraw_x / userdraw_y : because userdraw_x = [][] userdraw_y = [][]
		6354	used for userdraw multiple paths
7614	schaersvoo	6355	*/
		6356	case 6: fprintf(js_include_file,"\
13970	obado	6357	\n/* begin function 6 read_canvas%d() */\n\
8257	schaersvoo	6358	read_canvas%d = function(){\
7614	schaersvoo	6359	var p = 0;\
		6360	var reply = \"\";\
		6361	var tmp_x = new Array();\
		6362	var tmp_y = new Array();\
8074	schaersvoo	6363	var prec = %d;\
7614	schaersvoo	6364	for(p = 0 ; p < userdraw_x.length; p++){\
		6365	tmp_x = userdraw_x[p];\
		6366	tmp_y = userdraw_y[p];\
		6367	if(tmp_x != null){\
		6368	for(var i = 0 ; i < tmp_x.length ; i++){\
8074	schaersvoo	6369	tmp_x[i] = (Math.round(prec*(px2x(tmp_x[i]))))/prec;\
		6370	tmp_y[i] = (Math.round(prec*(px2y(tmp_y[i]))))/prec;\
7614	schaersvoo	6371	};\
		6372	reply = reply + tmp_x + \"\\n\" + tmp_y +\"\\n\";\
		6373	};\
		6374	};\
11806	schaersvoo	6375	if(p == 0){return;};\
7614	schaersvoo	6376	userdraw_x = [];userdraw_y = [];\
		6377	if( document.getElementById(\"canvas_input0\") ){\
		6378	var p = 0;var input_reply = new Array();\
		6379	if( document.getElementById(\"canvas_input0\")){\
		6380	var t = 0;\
		6381	while(document.getElementById(\"canvas_input\"+t)){\
		6382	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6383	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6384	p++;\
		6385	};\
		6386	t++;\
		6387	};\
		6388	};\
11088	schaersvoo	6389	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6390	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6391	}\
		6392	else\
		6393	{\
		6394	return reply +\"\\n\"+input_reply;\
		6395	}\
		6396	}\
		6397	else\
		6398	{\
11088	schaersvoo	6399	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6400	return reply +\"\\n\"+userdraw_text;\
		6401	}\
		6402	else\
		6403	{\
		6404	return reply;\
		6405	}\
		6406	};\
8108	schaersvoo	6407	};\n\
13970	obado	6408	/* end function 6 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6409	break;
		6410	case 7: fprintf(js_include_file,"\
13970	obado	6411	\n/* begin function 7 read_canvas%d() */\n\
8257	schaersvoo	6412	read_canvas%d = function(){\
8074	schaersvoo	6413	set_reply_precision();\
7614	schaersvoo	6414	var reply = new Array();\
		6415	var p = 0;\
		6416	while(userdraw_x[p]){\
		6417	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p];\
		6418	p++;\
		6419	};\
11806	schaersvoo	6420	if(p == 0){return;};\
7614	schaersvoo	6421	if( document.getElementById(\"canvas_input0\") ){\
		6422	var p = 0;var input_reply = new Array();\
		6423	if( document.getElementById(\"canvas_input0\")){\
		6424	var t = 0;\
		6425	while(document.getElementById(\"canvas_input\"+t)){\
		6426	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6427	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6428	p++;\
		6429	};\
		6430	t++;\
		6431	};\
		6432	};\
11088	schaersvoo	6433	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6434	return reply+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6435	}\
		6436	else\
		6437	{\
		6438	return reply+\"\\n\"+input_reply;\
		6439	}\
7862	schaersvoo	6440	}\
7614	schaersvoo	6441	else\
		6442	{\
11088	schaersvoo	6443	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6444	return reply+\"\\n\"+userdraw_text;\
		6445	}\
		6446	else\
		6447	{\
		6448	return reply;\
		6449	}\
		6450	};\
8108	schaersvoo	6451	};\n\
13970	obado	6452	/* end function 7 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6453	break;
		6454	case 8: fprintf(js_include_file,"\
13970	obado	6455	\n/* begin function 8 read_canvas%d() */\n\
8257	schaersvoo	6456	read_canvas%d = function(){\
7614	schaersvoo	6457	var reply = new Array();\
		6458	var p = 0;\
8074	schaersvoo	6459	var prec = %d;\
7614	schaersvoo	6460	while(userdraw_x[p]){\
8074	schaersvoo	6461	reply[p] = (Math.round(prec(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec;\
7614	schaersvoo	6462	p++;\
		6463	};\
11806	schaersvoo	6464	if(p == 0){return;};\
7614	schaersvoo	6465	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		6466	var p = 0;var input_reply = new Array();\
		6467	if( document.getElementById(\"canvas_input0\")){\
		6468	var t = 0;\
		6469	while(document.getElementById(\"canvas_input\"+t)){\
		6470	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6471	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6472	p++;\
		6473	};\
		6474	t++;\
		6475	};\
		6476	};\
11088	schaersvoo	6477	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6478	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6479	}\
		6480	else\
		6481	{\
		6482	return reply +\"\\n\"+input_reply;\
		6483	}\
		6484	}\
		6485	else\
		6486	{\
11088	schaersvoo	6487	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6488	return reply +\"\\n\"+userdraw_text;\
		6489	}\
		6490	else\
		6491	{\
		6492	return reply;\
		6493	}\
		6494	};\
8108	schaersvoo	6495	};\n\
13970	obado	6496	/* end function 8 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6497	break;
		6498	case 9: fprintf(js_include_file,"\
13970	obado	6499	\n/* begin function 9 read_canvas%d() */\n\
8257	schaersvoo	6500	read_canvas%d = function(){\
8074	schaersvoo	6501	set_reply_precision();\
7614	schaersvoo	6502	var reply = new Array();\
		6503	var p = 0;\
		6504	while(userdraw_x[p]){\
		6505	reply[p] = userdraw_x[p] +\":\" + userdraw_y[p] + \":\" + userdraw_radius[p];\
		6506	p++;\
		6507	};\
11806	schaersvoo	6508	if(p == 0){return;};\
7614	schaersvoo	6509	if( document.getElementById(\"canvas_input0\") ){\
		6510	var p = 0;var input_reply = new Array();\
		6511	if( document.getElementById(\"canvas_input0\")){\
		6512	var t = 0;\
		6513	while(document.getElementById(\"canvas_input\"+t)){\
		6514	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6515	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6516	p++;\
		6517	};\
		6518	t++;\
		6519	};\
		6520	};\
11088	schaersvoo	6521	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6522	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6523	}\
		6524	else\
		6525	{\
		6526	return reply +\"\\n\"+input_reply;\
		6527	}\
		6528	}\
		6529	else\
		6530	{\
11088	schaersvoo	6531	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6532	return reply +\"\\n\"+userdraw_text;\
		6533	}\
		6534	else\
		6535	{\
		6536	return reply;\
		6537	}\
		6538	};\
8108	schaersvoo	6539	};\n\
13970	obado	6540	/* end function 9 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6541	break;
		6542	case 10: fprintf(js_include_file,"\
13970	obado	6543	\n/* begin function 10 read_canvas%d() */\n\
8257	schaersvoo	6544	read_canvas%d = function(){\
7614	schaersvoo	6545	var reply = new Array();\
		6546	var p = 0;\
8074	schaersvoo	6547	var prec = %d;\
14044	schaersvoo	6548	var reply = \"\";\
7614	schaersvoo	6549	while(userdraw_x[p]){\
14044	schaersvoo	6550	reply = reply + (Math.round(prec(px2x(userdraw_x[p]))))/prec +\";\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec + \";\" + (Math.round(prec*userdraw_radius[p]))/prec + \"\\n\";\
7614	schaersvoo	6551	p++;\
		6552	};\
11806	schaersvoo	6553	if(p == 0){return;};\
14044	schaersvoo	6554	return reply;\
8108	schaersvoo	6555	};\n\
13970	obado	6556	/* end function 10 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6557	break;
		6558	case 11: fprintf(js_include_file,"\
13970	obado	6559	\n/* begin function 11 read_canvas%d() */\n\
8257	schaersvoo	6560	read_canvas%d = function(){\
7614	schaersvoo	6561	var reply = \"\";\
		6562	var p = 0;\
8074	schaersvoo	6563	var prec = %d;\
13521	schaersvoo	6564	while(userdraw_x[p+1]){\
8074	schaersvoo	6565	reply = reply + (Math.round(prec(px2x(userdraw_x[p]))))/prec +\",\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec +\",\" + (Math.round(prec(px2x(userdraw_x[p+1]))))/prec +\",\" + (Math.round(prec(px2y(userdraw_y[p+1]))))/prec +\"\\n\" ;\
7614	schaersvoo	6566	p = p+2;\
		6567	};\
11806	schaersvoo	6568	if(p == 0){return;};\
7614	schaersvoo	6569	if( document.getElementById(\"canvas_input0\") \|\| document.getElementById(\"mathml0\") ){\
		6570	var p = 0;var input_reply = new Array();\
		6571	if( document.getElementById(\"canvas_input0\")){\
		6572	var t = 0;\
		6573	while(document.getElementById(\"canvas_input\"+t)){\
		6574	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6575	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6576	p++;\
		6577	};\
		6578	t++;\
		6579	};\
		6580	};\
11088	schaersvoo	6581	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6582	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6583	}\
		6584	else\
		6585	{\
		6586	return reply +\"\\n\"+input_reply;\
		6587	}\
		6588	}\
		6589	else\
		6590	{\
11088	schaersvoo	6591	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6592	return reply +\"\\n\"+userdraw_text;\
		6593	}\
		6594	else\
		6595	{\
		6596	return reply;\
		6597	}\
		6598	};\
8108	schaersvoo	6599	};\n\
13970	obado	6600	/* end function 11 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6601	break;
		6602	case 12: fprintf(js_include_file,"\
13970	obado	6603	\n/* begin function 12 read_canvas%d() */\n\
8257	schaersvoo	6604	read_canvas%d = function(){\
8074	schaersvoo	6605	set_reply_precision();\
7614	schaersvoo	6606	var reply = \"\";\
		6607	var p = 0;\
13522	schaersvoo	6608	while(userdraw_x[p+1]){\
		6609	reply = reply + userdraw_x[p] +\",\" + userdraw_y[p] +\",\" + userdraw_x[p+1] +\",\" + userdraw_y[p+1] +\"\\n\" ;\
		6610	p=p+2;\
7614	schaersvoo	6611	};\
13522	schaersvoo	6612	};\
11806	schaersvoo	6613	if(p == 0){return;};\
7614	schaersvoo	6614	if( document.getElementById(\"canvas_input0\") ){\
		6615	var p = 0;var input_reply = new Array();\
		6616	if( document.getElementById(\"canvas_input0\")){\
		6617	var t = 0;\
		6618	while(document.getElementById(\"canvas_input\"+t)){\
		6619	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6620	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6621	p++;\
		6622	};\
		6623	t++;\
		6624	};\
		6625	};\
11088	schaersvoo	6626	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6627	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6628	}\
		6629	else\
		6630	{\
		6631	return reply +\"\\n\"+input_reply;\
		6632	}\
		6633	}\
		6634	else\
		6635	{\
11088	schaersvoo	6636	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6637	return reply +\"\\n\"+userdraw_text\
		6638	}\
		6639	else\
		6640	{\
		6641	return reply;\
		6642	}\
		6643	};\
8108	schaersvoo	6644	};\n\
13970	obado	6645	/* end function 12 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6646	break;
		6647	case 13: fprintf(js_include_file,"\
13970	obado	6648	\n/* begin function 13 read_canvas%d() */\n\
8257	schaersvoo	6649	read_canvas%d = function(){\
7614	schaersvoo	6650	var reply = new Array();\
		6651	var p = 0;var i = 0;\
8074	schaersvoo	6652	var prec = %d;\
13521	schaersvoo	6653	while(userdraw_x[p+1]){\
8074	schaersvoo	6654	reply[i] = (Math.round(prec(px2x(userdraw_x[p]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p]))))/prec +\":\" + (Math.round(prec(px2x(userdraw_x[p+1]))))/prec +\":\" + (Math.round(prec(px2y(userdraw_y[p+1]))))/prec;\
7614	schaersvoo	6655	p = p+2;i++;\
		6656	};\
11806	schaersvoo	6657	if(p == 0){return;};\
7614	schaersvoo	6658	if( document.getElementById(\"canvas_input0\") ){\
		6659	var p = 0;var input_reply = new Array();\
		6660	if( document.getElementById(\"canvas_input0\")){\
		6661	var t = 0;\
		6662	while(document.getElementById(\"canvas_input\"+t)){\
		6663	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6664	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6665	p++;\
		6666	};\
		6667	t++;\
		6668	};\
		6669	};\
11088	schaersvoo	6670	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6671	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6672	}\
		6673	else\
		6674	{\
		6675	return reply +\"\\n\"+input_reply;\
		6676	}\
		6677	}\
		6678	else\
		6679	{\
11088	schaersvoo	6680	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6681	return reply +\"\\n\"+userdraw_text\
		6682	}\
		6683	else\
		6684	{\
		6685	return reply;\
		6686	}\
		6687	};\
8108	schaersvoo	6688	};\n\
13970	obado	6689	/* end function 13 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6690	break;
		6691	case 14: fprintf(js_include_file,"\
13970	obado	6692	\n/* begin function 14 read_canvas%d() */\n\
8257	schaersvoo	6693	read_canvas%d = function(){\
8074	schaersvoo	6694	set_reply_precision();\
7614	schaersvoo	6695	var reply = new Array();\
		6696	var p = 0;var i = 0;\
13521	schaersvoo	6697	while(userdraw_x[p+1]){\
7614	schaersvoo	6698	reply[i] = userdraw_x[p] +\":\" + userdraw_y[p] +\":\" + userdraw_x[p+1] +\":\" + userdraw_y[p+1];\
		6699	p = p+2;i++;\
		6700	};\
11806	schaersvoo	6701	if(p == 0){return;};\
7614	schaersvoo	6702	if( document.getElementById(\"canvas_input0\") ){\
		6703	var p = 0;var input_reply = new Array();\
		6704	if( document.getElementById(\"canvas_input0\")){\
		6705	var t = 0;\
		6706	while(document.getElementById(\"canvas_input\"+t)){\
		6707	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6708	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6709	p++;\
		6710	};\
		6711	t++;\
		6712	};\
		6713	};\
11088	schaersvoo	6714	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6715	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6716	}\
		6717	else\
		6718	{\
		6719	return reply +\"\\n\"+input_reply;\
		6720	}\
		6721	}\
		6722	else\
		6723	{\
11088	schaersvoo	6724	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6725	return reply +\"\\n\"+userdraw_text;\
		6726	}\
		6727	else\
		6728	{\
		6729	return reply;\
		6730	}\
		6731	};\
8108	schaersvoo	6732	};\n\
13970	obado	6733	/* end function 14 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6734	break;
		6735	case 15: fprintf(js_include_file,"\
13970	obado	6736	\n/* begin function 15 read_canvas%d() */\n\
8257	schaersvoo	6737	read_canvas%d = function(){\
7614	schaersvoo	6738	var input_reply = new Array();\
		6739	var p = 0;\
		6740	if( document.getElementById(\"canvas_input0\")){\
		6741	var t = 0;\
		6742	while(document.getElementById(\"canvas_input\"+t)){\
		6743	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6744	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6745	p++;\
		6746	};\
		6747	t++;\
		6748	};\
		6749	};\
11088	schaersvoo	6750	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6751	return input_reply +\"\\n\"+userdraw_text;\
		6752	}\
		6753	else\
		6754	{\
		6755	return input_reply;\
		6756	};\
8108	schaersvoo	6757	};\n\
13970	obado	6758	/* end function 15 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6759	break;
		6760	case 16: fprintf(js_include_file,"\
13970	obado	6761	\n/* begin function 16 read_mathml() */\n\
7614	schaersvoo	6762	function read_mathml(){\
		6763	var reply = new Array();\
		6764	var p = 0;\
		6765	if( document.getElementById(\"mathml0\")){\
		6766	while(document.getElementById(\"mathml\"+p)){\
		6767	reply[p] = document.getElementById(\"mathml\"+p).value;\
		6768	p++;\
		6769	};\
		6770	};\
		6771	return reply;\
		6772	};\
		6773	this.read_mathml = read_mathml;\n\
13970	obado	6774	/* end function 16 read_mathml() */");
7614	schaersvoo	6775	break;
		6776	case 17: fprintf(js_include_file,"\
13970	obado	6777	\n/* begin function 17 read_canvas%d() */\n\
8257	schaersvoo	6778	read_canvas%d = function(){\
11080	schaersvoo	6779	var len = userdraw_x.length;\
		6780	if( len == 0){alert(\"no text typed...\");return;}\
		6781	var rep = px2x(userdraw_x[0])+\",\"+px2y(userdraw_y[0])+\",\"+userdraw_text[0];\
		6782	for(var p = 1 ; p < len ; p++){\
		6783	rep = rep + \"\\n\" + px2x(userdraw_x[p]) + \",\" + px2y(userdraw_y[p]) + \",\" + userdraw_text[p];\
		6784	};\
		6785	return rep;\
8108	schaersvoo	6786	};\n\
13970	obado	6787	/* end function 17 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6788	break;
		6789	case 18: fprintf(js_include_file,"\
13970	obado	6790	\n/* javascript has no real modulo function */\n\
10956	schaersvoo	6791	function mod(n, m){\
		6792	var m = parseInt(((n %% m) + m) %% m);\
		6793	return m;\
		6794	};\
13970	obado	6795	\n/* begin function 18 read_canvas%d() */\n\
8257	schaersvoo	6796	read_canvas%d = function(){\
7614	schaersvoo	6797	var p = 0;\
		6798	var reply = new Array();\
		6799	var name;\
		6800	var t = true;\
8000	schaersvoo	6801	var h;var m;var s;\
7614	schaersvoo	6802	while(t){\
8000	schaersvoo	6803	try{\
		6804	name = eval('clocks'+p);\
		6805	h = name.H;m = name.M;s = name.S;\
10956	schaersvoo	6806	h = mod((h+m/60+s/3600),12);m = mod((m + s/60),60);s = mod(s,60);\
8000	schaersvoo	6807	reply[p] = h+\":\"+m+\":\"+s;\
		6808	p++;\
		6809	}catch(e){t=false;};\
7614	schaersvoo	6810	};\
8000	schaersvoo	6811	if( p == 0 ){alert(\"clock(s) not modified...\");return;}\
7614	schaersvoo	6812	return reply;\
8108	schaersvoo	6813	};\n\
13970	obado	6814	/* end function 18 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	6815	break;
		6816	case 19: fprintf(js_include_file,"\
13970	obado	6817	\n/* begin function 19 read_canvas%d() */\n\
8257	schaersvoo	6818	read_canvas%d = function(){\
7614	schaersvoo	6819	return reply[0];\
8108	schaersvoo	6820	};\n\
13970	obado	6821	/* end function 19 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
8130	schaersvoo	6822	break;
7614	schaersvoo	6823	case 20: fprintf(js_include_file,"\
13970	obado	6824	\n/* begin function 20 read_canvas%d() */\n\
8257	schaersvoo	6825	read_canvas%d = function(){\
8074	schaersvoo	6826	var prec = %d;\
7614	schaersvoo	6827	var len = ext_drag_images.length;\
		6828	var reply = new Array(len);\
		6829	for(var p = 0 ; p < len ; p++){\
		6830	var img = ext_drag_images[p];\
8556	schaersvoo	6831	reply[p] = p+\":\"+(Math.round(prec(px2x(img[6]))))/prec+\":\"+(Math.round(prec(px2y(img[7]))))/prec;\
7614	schaersvoo	6832	};\
		6833	return reply;\
8108	schaersvoo	6834	};\n\
13970	obado	6835	/* end function 20 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6836	break;
		6837	case 21: fprintf(js_include_file,"\
13970	obado	6838	\n/* begin function 21 read_canvas%d() */\n\
8257	schaersvoo	6839	read_canvas%d = function(){\
7614	schaersvoo	6840	if( userdraw_x.length == 0){alert(\"nothing drawn...\");return;}\
		6841	var reply_coord = new Array();var p = 0;\
8074	schaersvoo	6842	var prec = %d;\
7614	schaersvoo	6843	while(userdraw_x[p]){\
8074	schaersvoo	6844	reply_coord[p] = \"(\"+(Math.round(prec(px2x(userdraw_x[p]))))/prec+\":\"+(Math.round(prec(px2y(userdraw_y[p]))))/prec+\")\";\
7614	schaersvoo	6845	p++;\
		6846	};\
11806	schaersvoo	6847	if(p == 0){return;};\
7614	schaersvoo	6848	if( document.getElementById(\"canvas_input0\") ){\
		6849	var p = 0;var input_reply = new Array();\
		6850	if( document.getElementById(\"canvas_input0\")){\
		6851	var t = 0;\
		6852	while(document.getElementById(\"canvas_input\"+t)){\
		6853	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6854	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6855	p++;\
		6856	};\
		6857	t++;\
		6858	};\
		6859	};\
11088	schaersvoo	6860	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6861	return reply_coord+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6862	}\
		6863	else\
		6864	{\
		6865	return reply_coord+\"\\n\"+input_reply;\
		6866	}\
		6867	}\
		6868	else\
		6869	{\
11088	schaersvoo	6870	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6871	return reply_coord+\"\\n\"+userdraw_text;\
		6872	}\
		6873	else\
		6874	{\
		6875	return reply_coord;\
		6876	};\
		6877	};\
8108	schaersvoo	6878	};\n\
13970	obado	6879	/* end function 21 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6880	break;
		6881	case 22: fprintf(js_include_file,"\
13970	obado	6882	\n/* begin function 22 read_canvas%d() */\n\
8257	schaersvoo	6883	read_canvas%d = function(){\
7614	schaersvoo	6884	var reply = new Array();\
7963	schaersvoo	6885	var lu = userdraw_x.length;\
11806	schaersvoo	6886	if(lu == 0){return;};\
7614	schaersvoo	6887	var idx = 0;\
8074	schaersvoo	6888	var prec = %d;\
7963	schaersvoo	6889	for(var p = 0 ; p < lu ; p++){\
8074	schaersvoo	6890	reply[idx] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;idx++;\
		6891	reply[idx] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;idx++;\
7614	schaersvoo	6892	};\
		6893	if( document.getElementById(\"canvas_input0\") ){\
		6894	var p = 0;var input_reply = new Array();\
		6895	if( document.getElementById(\"canvas_input0\")){\
		6896	var t = 0;\
		6897	while(document.getElementById(\"canvas_input\"+t)){\
		6898	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6899	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6900	p++;\
		6901	};\
		6902	t++;\
		6903	};\
		6904	};\
11088	schaersvoo	6905	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6906	return reply +\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6907	}\
		6908	else\
		6909	{\
		6910	return reply +\"\\n\"+input_reply;\
		6911	}\
		6912	}\
		6913	else\
		6914	{\
11088	schaersvoo	6915	if( typeof(userdraw_text) !== 'undefined' ){\
7614	schaersvoo	6916	return reply +\"\\n\"+userdraw_text;\
		6917	}\
		6918	else\
		6919	{\
		6920	return reply;\
		6921	}\
		6922	};\
8108	schaersvoo	6923	};\n\
13970	obado	6924	/* end function 22 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7614	schaersvoo	6925	break;
7782	schaersvoo	6926	case 23: fprintf(js_include_file,"\
13970	obado	6927	\n/* begin function 23 read_canvas%d() default 5 px marge */\n\
8257	schaersvoo	6928	read_canvas%d = function(){\
7782	schaersvoo	6929	if( userdraw_x.length < 2){alert(\"nothing drawn...\");return;}\
		6930	var lu = userdraw_x.length;\
		6931	if( lu != userdraw_y.length ){ alert(\"x / y mismatch !\");return;}\
7962	schaersvoo	6932	var reply_x = new Array();var reply_y = new Array();\
		6933	var marge = 5;var p = 0;\
8074	schaersvoo	6934	var prec = %d;\
7782	schaersvoo	6935	for(var i = 0; i < lu - 1 ; i++ ){\
10987	schaersvoo	6936	if( Math.abs(userdraw_x[i] - userdraw_x[i+1]) \|\| Math.abs(userdraw_y[i] - userdraw_y[i+1])){\
8074	schaersvoo	6937	reply_x[p] = (Math.round(prec(px2x(userdraw_x[i]))))/prec;reply_y[p] = (Math.round(prec(px2y(userdraw_y[i]))))/prec;\
7962	schaersvoo	6938	if( isNaN(reply_x[p]) \|\| isNaN(reply_y[p]) ){ alert(\"hmmmm ?\");return; };\
		6939	p++;\
7782	schaersvoo	6940	};\
8074	schaersvoo	6941	reply_x[p] = (Math.round(prec(px2x(userdraw_x[lu-1]))))/prec;reply_y[p] = (Math.round(prec(px2y(userdraw_y[lu-1]))))/prec;\
7782	schaersvoo	6942	};\
		6943	if( document.getElementById(\"canvas_input0\")){\
		6944	var p = 0;var input_reply = new Array();\
		6945	if( document.getElementById(\"canvas_input0\")){\
		6946	var t = 0;\
		6947	while(document.getElementById(\"canvas_input\"+t)){\
		6948	if( ! document.getElementById(\"canvas_input\"+t).getAttribute(\"readonly\")){\
		6949	input_reply[p] = document.getElementById(\"canvas_input\"+t).value;\
		6950	p++;\
		6951	};\
		6952	t++;\
		6953	};\
		6954	};\
11088	schaersvoo	6955	if( typeof(userdraw_text) !== 'undefined' ){\
7782	schaersvoo	6956	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply+\"\\n\"+userdraw_text;\
		6957	}\
		6958	else\
		6959	{\
		6960	return reply_x+\"\\n\"+reply_y+\"\\n\"+input_reply;\
		6961	}\
		6962	}\
		6963	else\
		6964	{\
11088	schaersvoo	6965	if( typeof(userdraw_text) !== 'undefined' ){\
7782	schaersvoo	6966	return reply_x+\"\\n\"+reply_y+\"\\n\"+userdraw_text;\
		6967	}\
		6968	else\
		6969	{\
		6970	return reply_x+\"\\n\"+reply_y;\
		6971	};\
		6972	};\
8108	schaersvoo	6973	};\n\
13970	obado	6974	/* end function 23 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
7782	schaersvoo	6975	break;
7984	schaersvoo	6976	case 24: fprintf(js_include_file,"\n\
13970	obado	6977	/* begin function 24 read_canvas%d() */\n\
8257	schaersvoo	6978	read_canvas%d = function(){\
7984	schaersvoo	6979	var input_reply = new Array();\
		6980	var p = 0;\
		6981	if( document.getElementById(\"canvas_input0\")){\
		6982	while(document.getElementById(\"canvas_input\"+p)){\
		6983	input_reply[p] = document.getElementById(\"canvas_input\"+p).value;\
		6984	p++;\
		6985	};\
		6986	return input_reply;\
		6987	};\
8108	schaersvoo	6988	};\n\
13970	obado	6989	/* end function 24 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
7984	schaersvoo	6990	break;
8083	schaersvoo	6991	case 25:
13970	obado	6992	fprintf(js_include_file,"\n/* begin function 25 read_canvas%d() : angle(s) in degrees */\n\
8257	schaersvoo	6993	read_canvas%d = function(){\
8083	schaersvoo	6994	if( userdraw_radius.length < 1){alert(\"nothing drawn...\");return;}\
		6995	var lu = userdraw_radius.length;\
		6996	var prec = %d;\
		6997	var angle_reply = new Array(lu);\
		6998	for(var p = 0 ; p < lu ; p++){\
		6999	angle_reply[p] = (Math.round(prec180(userdraw_radius[p])/Math.PI))/prec;\
		7000	};\
		7001	return angle_reply;\
8108	schaersvoo	7002	};\n\
13970	obado	7003	/* end function 25 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8083	schaersvoo	7004	break;
		7005	case 26:
13970	obado	7006	fprintf(js_include_file,"\n/* begin function 26 read_canvas%d() : angle(s) in radians */\n\
8257	schaersvoo	7007	read_canvas%d = function(){\
8083	schaersvoo	7008	if( userdraw_radius.length < 1){alert(\"nothing drawn...\");return;}\
		7009	var lu = userdraw_radius.length;\
		7010	var prec = %d;\
		7011	var angle_reply = new Array(lu);\
		7012	for(var p = 0 ; p < lu ; p++){\
		7013	angle_reply[p] = (Math.round(prec*(userdraw_radius[p])))/prec;\
		7014	};\
		7015	return angle_reply;\
8108	schaersvoo	7016	};\n\
13970	obado	7017	/* end function 26 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8083	schaersvoo	7018	break;
8127	schaersvoo	7019	case 27:
13970	obado	7020	fprintf(js_include_file,"\n/* begin function 27 read_canvas%d() : inputfield(s) location and their values : */\n\
8257	schaersvoo	7021	read_canvas%d = function(){\
8127	schaersvoo	7022	var lu = userdraw_x.length;\
14044	schaersvoo	7023	if( lu < 1){alert(\"nothing drawn...\");return;};\
8127	schaersvoo	7024	set_reply_precision();\
14044	schaersvoo	7025	var prec = %d;var rep = \"\";\
8127	schaersvoo	7026	for(var p = 0 ; p < lu ; p++){\
14044	schaersvoo	7027	rep = rep + (Math.round(prec(px2x(userdraw_x[p]))))/prec+\";\"+(Math.round(prec(px2y(userdraw_y[p]))))/prec+\";\"+ document.getElementById(\"canvas_input\"+p).value + \"\\n\";\
8127	schaersvoo	7028	};\
11080	schaersvoo	7029	return rep;\
8127	schaersvoo	7030	};\n\
13970	obado	7031	/* end function 27 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8127	schaersvoo	7032	break;
8322	schaersvoo	7033	case 28:
13970	obado	7034	fprintf(js_include_file,"\n/* begin function 28 read_canvas%d() */\n\
8322	schaersvoo	7035	read_canvas%d = function(){\
		7036	var prec = %d;\
		7037	var reply = new Array();var p = 0;\
		7038	var idx = 0;\
		7039	while(userdraw_x[p]){\
		7040	reply[idx] = (Math.round(prec*(px2x(userdraw_x[p]))))/prec;\
		7041	idx++;\
		7042	reply[idx] = (Math.round(prec*(px2y(userdraw_y[p]))))/prec;\
		7043	idx++;\
		7044	reply[idx] = (Math.round(prec*(px2x(userdraw_radius[p]) - px2x(0))))/prec;\
		7045	idx++;\
		7046	p++;\
		7047	};\
		7048	if( p == 0){alert(\"nothing drawn...\");return;}\
		7049	return reply;\
		7050	};\n\
13970	obado	7051	/* end function 28 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
8322	schaersvoo	7052	break;
9213	schaersvoo	7053	case 29:
13970	obado	7054	fprintf(js_include_file,"\n/* begin function 29 read_canvas%d() */\n\
14038	schaersvoo	7055	function x_precision(array_x){\
9213	schaersvoo	7056	var len = array_x.length;\
		7057	var x_array = new Array(len);\
14038	schaersvoo	7058	var prec = %d;\
		7059	for(var p = 0 ; p < len ; p++ ){\
		7060	x_array[p] = (Math.round(prec*(px2x(array_x[p]))))/prec;\
		7061	};\
		7062	return x_array;\
		7063	};\
		7064	function y_precision(array_y){\
		7065	var len = array_y.length;\
9213	schaersvoo	7066	var y_array = new Array(len);\
		7067	var prec = %d;\
		7068	for(var p = 0 ; p < len ; p++ ){\
		7069	y_array[p] = (Math.round(prec*(px2y(array_y[p]))))/prec;\
		7070	};\
14038	schaersvoo	7071	return y_array;\
		7072	};\
9213	schaersvoo	7073	function round_to_pixel(array_r){\
		7074	var len = array_r.length;\
		7075	for(var p = 0 ; p < len ; p++ ){\
		7076	array_r[p] = Math.round(array_r[p]);\
		7077	};\
		7078	return array_r;\
		7079	};\
		7080	read_canvas%d = function(){\
14038	schaersvoo	7081	function uniq_fast(arr){\
		7082	var seen = {};\
		7083	var out = [];\
		7084	var len = arr.length;\
		7085	var j = 0;\
		7086	for(var i = 0; i < len; i++){\
		7087	var item = arr[i];\
		7088	if(seen[item] !== 1) {\
		7089	seen[item] = 1;out[j++] = item;\
		7090	};\
		7091	};\
		7092	return out;\
		7093	};\
		7094	function list_unique(arr1,arr2,arr3){\
		7095	var len1 = arr1.length;\
		7096	if(len1 != arr2.length){alert('mismatch in number of x and y values...');return;};\
		7097	var sum = [];var R1=[];var R2=[];\
		7098	arr1 = x_precision(arr1);\
		7099	arr2 = y_precision(arr2);\
		7100	if(arr3 == null){\
		7101	for(var p=0;p<len1;p++){ sum[p] = arr1[p]+'#'+arr2[p]; };\
		7102	sum = uniq_fast(sum);var len2=sum.length;\
		7103	for(var p=0;p<len2;p++){\
		7104	var tmp = (sum[p]).split('#');\
		7105	R1[p] = tmp[0];\
		7106	R2[p] = tmp[1];\
		7107	};\
		7108	return [R1,R2];\
		7109	}else{\
		7110	var R3 = [];\
		7111	for(var p=0;p<len1;p++){ sum[p] = arr1[p]+'#'+arr2[p]+'#'+arr3[p];};\
		7112	sum = uniq_fast(sum);var len2=sum.length;\
		7113	for(var p=0;p<len2;p++){\
		7114	var tmp = (sum[p]).split('#');\
		7115	R1[p] = tmp[0];\
		7116	R2[p] = tmp[1];\
		7117	R3[p] = tmp[2];\
		7118	};\
		7119	return [R1,R2,R3];\
		7120	};\
		7121	};\
9300	schaersvoo	7122	var reply=\" \";\
14038	schaersvoo	7123	if( typeof(points_x) === 'object' && points_x.length > 0 ){var xyz = list_unique(points_x,points_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\";}else{ reply = reply + \"\\n\"; };\
		7124	if( typeof(circles_x) === 'object' && circles_x.length > 0 ){var xyz = list_unique(circles_x,circles_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\";+\";\"+round_to_pixel(multi_radius)+\"\\n\"; }else{ reply = reply + \"\\n\"; };\
		7125	if( typeof(segments_x) === 'object' && segments_x.length > 0 ){ var xyz = list_unique(segments_x,segments_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\";}else{ reply = reply + \"\\n\"; };\
		7126	if( typeof(arrows_x) === 'object' && arrows_x.length > 0 ){var xyz = list_unique(arrows_x,arrows_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\"; }else{ reply = reply + \"\\n\"; };\
		7127	if( typeof(lines_x) === 'object' && lines_x.length > 0 ){ var xyz = list_unique(lines_x,lines_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\"; }else{ reply = reply + \"\\n\"; };\
		7128	if( typeof(triangles_x) === 'object' && triangles_x.length > 0){var xyz = list_unique(triangles_x,triangles_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\"; }else{ reply = reply + \"\\n\"; };\
		7129	if( typeof(polys_x) === 'object' && polys_x.length > 0){ var xyz = list_unique(polys_x,polys_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\"; }else{ reply = reply + \"\\n\"; };\
		7130	if( typeof(rects_x) === 'object' && rects_x.length > 0 ){var xyz = list_unique(rects_x,rects_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\"; }else{ reply = reply + \"\\n\"; };\
		7131	if( typeof(closedpoly_x) === 'object' && closedpoly_x.length > 0){ closedpoly_x.pop();closedpoly_y.pop();var xyz = list_unique(closedpoly_x,closedpoly_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\";}else{ reply = reply + \"\\n\"; };\
		7132	if( typeof(parallelogram_x) === 'object' && parallelogram_x.length > 0){var xyz = list_unique(parallelogram_x,parallelogram_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\"; }else{ reply = reply + \"\\n\"; };\
		7133	if( typeof(text_x) === 'object' && text_x.length > 0){var xyz = list_unique(text_x,text_y,text_abc);reply = reply + xyz[0] +\";\"+xyz[1]+\";\"+xyz[2]+\"\\n\";}else{ reply = reply + \"\\n\"; };\
		7134	if( typeof(images_x) === 'object' && images_x.length > 0){var xyz = list_unique(images_x,images_y,images_id);reply = reply + xyz[0] +\";\"+xyz[1]+\";\"+xyz[2]+\"\\n\";}else{ reply = reply + \"\\n\"; };\
		7135	if( typeof(curvedarrows_x) === 'object' && curvedarrows_x.length > 0){var xyz = list_unique(curvedarrows_x,curvedarrows_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\"; }else{ reply = reply + \"\\n\";};\
		7136	if( typeof(curvedarrows2_x) === 'object' && curvedarrows2_x.length > 0){var xyz = list_unique(curvedarrows2_x,curvedarrows2_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\"; }else{ reply = reply + \"\\n\";};\
		7137	if( typeof(userdraw_x) === 'object' && userdraw_radius.x> 0){var xyz = list_unique(userdraw_x,userdraw_y,null);reply = reply + xyz[0] +\";\"+xyz[1]+\"\\n\"; return reply;;};\
		7138	if( typeof(userdraw_radius) === 'object' && userdraw_radius.length > 0){var xyz = list_unique(userdraw_x,userdraw_y,userdraw_radius);reply = reply + xyz[0] +\";\"+xyz[1]+\";\"+xyz[2]+\"\\n\"; return reply;;};\
9213	schaersvoo	7139	return reply;\
14038	schaersvoo	7140	};\
14044	schaersvoo	7141	/* end function 29 read_canvas%d() */",canvas_root_id,reply_precision,reply_precision,canvas_root_id,canvas_root_id);
9213	schaersvoo	7142	break;
9289	schaersvoo	7143	case 30:
13970	obado	7144	fprintf(js_include_file,"\n/* begin function 30 read_canvas%d() */\n\
9289	schaersvoo	7145	read_canvas%d = function(){\
		7146	var reply = new Array(3);\
		7147	var prec = %d;\
		7148	reply[0] = (Math.round(prec*(px2x(protractor_data[0]))))/prec;\
		7149	reply[1] = (Math.round(prec*(px2y(protractor_data[1]))))/prec;\
		7150	reply[2] = (Math.round(prec*(protractor_data[2])))/prec;\
		7151	return reply;\
		7152	};\n\
13970	obado	7153	/* end function 30 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
9289	schaersvoo	7154	break;
		7155	case 31:
13970	obado	7156	fprintf(js_include_file,"\n/* begin function 31 read_canvas%d() */\n\
9289	schaersvoo	7157	read_canvas%d = function(){\
		7158	var reply = new Array(3);\
		7159	var prec = %d;\
		7160	reply[0] = (Math.round(prec*(px2x(ruler_data[0]))))/prec;\
		7161	reply[1] = (Math.round(prec*(px2y(ruler_data[1]))))/prec;\
		7162	reply[2] = (Math.round(prec*(ruler_data[2])))/prec;\
		7163	return reply;\
		7164	};\n\
13970	obado	7165	/* end function 31 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
9289	schaersvoo	7166	break;
		7167	case 32:
13970	obado	7168	fprintf(js_include_file,"\n/* begin function 32 read_canvas%d() */\n\
9289	schaersvoo	7169	read_canvas%d = function(){\
		7170	var reply = new Array(6);\
		7171	var prec = %d;\
		7172	reply[0] = (Math.round(prec*(px2x(ruler_data[0]))))/prec;\
		7173	reply[1] = (Math.round(prec*(px2y(ruler_data[1]))))/prec;\
		7174	reply[2] = (Math.round(prec*(ruler_data[2])))/prec;\
		7175	reply[3] = (Math.round(prec*(px2x(protractor_data[0]))))/prec;\
		7176	reply[4] = (Math.round(prec*(px2y(protractor_data[1]))))/prec;\
		7177	reply[5] = (Math.round(prec*(protractor_data[2])))/prec;\
		7178	return reply;\
		7179	};\n\
13970	obado	7180	/* end function 32 read_canvas%d() */",canvas_root_id,canvas_root_id,reply_precision,canvas_root_id);
9289	schaersvoo	7181	break;
14038	schaersvoo	7182	case 33:
		7183	fprintf(js_include_file,"\n/* begin function 33 read_canvas%d() */\n\
		7184	read_canvas%d = function(){\
		7185	var reply = userdraw_x+'\\n'+userdraw_y;\
		7186	return reply;\
		7187	};\n\
		7188	/* end function 32 read_canvas%d() */",canvas_root_id,canvas_root_id,canvas_root_id);
		7189	break;
		7190	case 34: fprintf(js_include_file,"\
		7191	\n/* begin special OEF function (replyformat 34) read_canvas_images() \\n note: only suitable for reading a single canvas in exercise page */\n\
		7192	var read_canvas_images = function(){\
		7193	var prec = %d;\
		7194	var len = ext_drag_images.length;\
		7195	var reply = new Array(len);\
		7196	for(var p = 0 ; p < len ; p++){\
		7197	var img = ext_drag_images[p];\
		7198	reply[p] = p+\":\"+(Math.round(prec(px2x(img[6]))))/prec+\":\"+(Math.round(prec(px2y(img[7]))))/prec;\
		7199	};\
		7200	return reply;\
		7201	};\n\
		7202	/* end function 20 read_canvas_images() */",reply_precision);
		7203	break;
		7204
7614	schaersvoo	7205	default: canvas_error("hmmm unknown replyformat...");break;
		7206	}
		7207	return;
		7208	}
		7209
		7210
8224	bpr	7211	/*
		7212	add drawfunction :
7614	schaersvoo	7213	- functions used by userdraw_primitives (circle,rect,path,triangle...)
		7214	- things not covered by the drag&drop library (static objects like parallel, lattice ,gridfill , imagefill)
		7215	- grid / mathml
		7216	- will not scale or zoom in
		7217	- will not be filled via pixel operations like fill / floodfill / filltoborder / clickfill
8224	bpr	7218	- is printed directly into 'js_include_file'
7614	schaersvoo	7219	*/
		7220
11021	schaersvoo	7221	void add_javascript_function(int js_function[],int canvas_root_id){
7614	schaersvoo	7222	int i;
		7223	for(i = 0 ; i < MAX_JS_FUNCTIONS; i++){
11017	schaersvoo	7224	if( js_function[i] == 1){
7614	schaersvoo	7225	switch(i){
11026	bpr	7226	case JS_FIND_ANGLE:
11025	schaersvoo	7227	fprintf(js_include_file,"\n\
13970	obado	7228	/* function find_angle() */\n\
14044	schaersvoo	7229	function find_angle(xc,yc,x1,y1){var dx = x1 - xc;var dy = yc - y1;return Math.atan2(dx,dy);};");
11017	schaersvoo	7230	break;
8448	schaersvoo	7231	case DRAW_EXTERNAL_IMAGE:
14038	schaersvoo	7232	/*
13969	schaersvoo	7233	the external_canvas is already created: it needs to be FIRST in order to do some drawing onto it
		7234	only drag_xy !
		7235	snaptogrid \| xsnaptogrid \| ysnaptogrid works
		7236	14/5/2019
		7237	on heavy styled wims (unice.fr etc problems with mouse?
		7238	now uniform method of retreiving mouse coordinates dragstuff.getMouse()
8448	schaersvoo	7239	*/
13970	obado	7240	fprintf(js_include_file,"\n/* drag external images */\n\
7653	schaersvoo	7241	var external_ctx = external_canvas.getContext(\"2d\");\
		7242	var external_canvas_rect = external_canvas.getBoundingClientRect();\
		7243	canvas_div.addEventListener(\"mousedown\",setxy,false);\
		7244	canvas_div.addEventListener(\"mouseup\",dragstop,false);\
		7245	canvas_div.addEventListener(\"mousemove\",dragxy,false);\
		7246	var selected_image = null;\
		7247	var ext_image_cnt = 0;\
		7248	var ext_drag_images = new Array();\
14038	schaersvoo	7249	var ext_centered = 0;\
14044	schaersvoo	7250	function draw_external_image(URL,sx,sy,swidth,sheight,x0,y0,width,height,idx,resizable,draggable,click_cnt,centered,use_snap){\
14038	schaersvoo	7251	ext_centered = centered;\
7653	schaersvoo	7252	ext_image_cnt = idx;\
8448	schaersvoo	7253	if(draggable == 1 ){\
		7254	reply[click_cnt] = 0;\
		7255	};\
7653	schaersvoo	7256	var image = new Image();\
		7257	image.src = URL;\
		7258	image.onload = function(){\
8448	schaersvoo	7259	if( sx < 1 ){ sx = 0; };\
		7260	if( sy < 1 ){ sy = 0; };\
		7261	if( swidth < 1 ){swidth = image.width;};\
		7262	if( sheight < 1 ){sheight = image.height;};\
		7263	if( width < 1 ){width = image.width;};\
		7264	if( height < 1 ){height = image.height;};\
		7265	if( resizable == 0 ){\
		7266	if( swidth > image.width ){ swidth = image.width; };\
		7267	if( sheight > image.height){ sheight = image.height;};\
		7268	if( width > image.width ){ width = image.width; };\
		7269	if( height > image.height){ height = image.height;};\
		7270	};\
14044	schaersvoo	7271	var img = new Array(12);\
7653	schaersvoo	7272	img[0] = draggable;img[1] = image;img[2] = sx;img[3] = sy;img[4] = swidth;img[5] = sheight;\
14044	schaersvoo	7273	img[8] = width;img[9] = height;img[10] = click_cnt;img[11] = use_snap;\
14038	schaersvoo	7274	if(ext_centered == 4 ){img[6] = x0 - 0.5img[8];img[7] = y0-0.5img[9];}else{img[6] = x0;img[7] = y0;};\
7653	schaersvoo	7275	ext_drag_images[idx] = img;\
		7276	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		7277	};\
		7278	};\
		7279	function dragstop(evt){\
		7280	selected_image = null;return;\
		7281	};\
		7282	function dragxy(evt){\
		7283	if( selected_image != null ){\
14044	schaersvoo	7284	var s_img = ext_drag_images[selected_image];\
13969	schaersvoo	7285	var mouse = dragstuff.getMouse(evt,external_canvas);\
14044	schaersvoo	7286	var xy = multisnap_check(mouse.x,mouse.y,s_img[11]);\
		7287	var x = xy[0];var y = xy[1];\
14038	schaersvoo	7288	if(ext_centered == 4 ){ x = x - 0.5s_img[8] ;y = y - 0.5s_img[9];};\
		7289	s_img[6] = x;s_img[7] = y;\
7653	schaersvoo	7290	ext_drag_images[selected_image] = s_img;\
		7291	external_ctx.clearRect(0,0,xsize,ysize);\
		7292	for(var i = 0; i <= ext_image_cnt ; i++){\
		7293	var img = ext_drag_images[i];\
		7294	external_ctx.drawImage(img[1],img[2],img[3],img[4],img[5],img[6],img[7],img[8],img[9]);\
		7295	};\
		7296	};\
		7297	};\
		7298	function setxy(evt){\
		7299	if( ! selected_image && evt.which == 1 ){\
13969	schaersvoo	7300	var mouse = dragstuff.getMouse(evt,external_canvas);\
		7301	var xm = mouse.x;\
		7302	var ym = mouse.y;\
8448	schaersvoo	7303	var img;\
7653	schaersvoo	7304	for(var p = 0 ; p <= ext_image_cnt ; p++){\
8448	schaersvoo	7305	if( ext_drag_images[p] ){\
		7306	img = ext_drag_images[p];\
		7307	if( img[0] != 0 ){\
		7308	if( xm > img[6] && xm < img[6] + img[8]){\
		7309	if( ym > img[7] && ym < img[7] + img[9]){\
		7310	if( img[0] == 1){\
		7311	if( reply[img[10]] == 1 ){\
		7312	reply[img[10]] = 0;external_ctx.strokeStyle = '#ffffff';\
		7313	}\
		7314	else\
		7315	{\
		7316	reply[img[10]] = 1;external_ctx.strokeStyle = '#00ff00';\
		7317	};\
13969	schaersvoo	7318	external_ctx.lineWidth = 4;\
8448	schaersvoo	7319	external_ctx.beginPath();\
		7320	external_ctx.rect(img[6],img[7],img[8],img[9]);\
		7321	external_ctx.closePath();\
		7322	external_ctx.stroke();\
		7323	return;\
		7324	}\
		7325	else\
		7326	{\
		7327	img[6] = xm;\
		7328	img[7] = ym;\
		7329	ext_drag_images[p] = img;\
		7330	selected_image = p;\
		7331	dragxy(evt);\
		7332	};\
		7333	};\
7653	schaersvoo	7334	};\
		7335	};\
		7336	};\
		7337	};\
		7338	}\
		7339	else\
		7340	{\
		7341	selected_image = null;\
		7342	};\
8448	schaersvoo	7343	};");
7614	schaersvoo	7344	break;
8370	schaersvoo	7345	case DRAW_BEZIER:
13970	obado	7346	fprintf(js_include_file,"\n/* draw bezier curve */\n\
11874	schaersvoo	7347	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
8370	schaersvoo	7348	var draw_bezier = function(canvas_type,linewidth,xy_points,fill_color,fill_opacity,stroke_color,stroke_opacity,use_filled,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
		7349	var obj;\
		7350	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		7351	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		7352	}\
		7353	else\
		7354	{\
		7355	obj = create_canvas%d(canvas_type,xsize,ysize);\
		7356	};\
		7357	var ctx = obj.getContext(\"2d\");\
		7358	ctx.save();\
		7359	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7360	ctx.lineWidth = linewidth;\
11088	schaersvoo	7361	if(linewidth%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
8370	schaersvoo	7362	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
		7363	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
		7364	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7365	ctx.beginPath();\
		7366	ctx.moveTo(x2px(xy_points[0]),y2px(xy_points[1]));\
		7367	ctx.bezierCurveTo(x2px(xy_points[2]),y2px(xy_points[3]),x2px(xy_points[4]),y2px(xy_points[5]),x2px(xy_points[6]),y2px(xy_points[7]));\
11874	schaersvoo	7368	var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
11875	schaersvoo	7369	if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
8370	schaersvoo	7370	ctx.stroke();\
		7371	ctx.restore();\
		7372	};\n",canvas_root_id,canvas_root_id,canvas_root_id);
		7373	break;
13829	bpr	7374
7614	schaersvoo	7375	case DRAW_GRIDFILL:/* not used for userdraw */
13970	obado	7376	fprintf(js_include_file,"\n/* draw gridfill */\n\
11827	schaersvoo	7377	var grid_fill_pattern;\
11823	schaersvoo	7378	var draw_gridfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,opacity,xsize,ysize,use_userdraw){\
11820	schaersvoo	7379	if( dx == 0 \|\| dy == 0 ){alert(\"increment is zero !!! \");return;};\
		7380	if( typeof(fill_canvas_no) != 'object' ){ var fill_canvas_no = []; };\
		7381	var fc = %d+canvas_type;\n\
		7382	fill_canvas_no.push(fc);\
		7383	var obj = create_canvas%d(fc,xsize,ysize);\n\
		7384	var ctx = obj.getContext('2d');\n\
7614	schaersvoo	7385	var x,y;\
11820	schaersvoo	7386	ctx.fillStyle='rgba(255,255,255,0.01)';\n\
		7387	ctx.rect(0,0,xsize,ysize);\n\
		7388	ctx.fill();\n\
		7389	ctx.lineWidth = linewidth;\
		7390	if(linewidth%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
		7391	ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
		7392	for( x = 0 ; x < xsize ; x = x + dx ){\
		7393	ctx.beginPath();\
		7394	ctx.moveTo(x,0);\
		7395	ctx.lineTo(x,ysize);\
		7396	ctx.closePath();\
		7397	ctx.stroke();\
7614	schaersvoo	7398	};\
11820	schaersvoo	7399	for( y = 0 ; y < ysize; y = y + dy ){\
		7400	ctx.beginPath();\
		7401	ctx.moveTo(0,y);\
		7402	ctx.lineTo(xsize,y);\
		7403	ctx.closePath();\
		7404	ctx.stroke();\
7614	schaersvoo	7405	};\
11823	schaersvoo	7406	if( use_userdraw ){\
		7407	grid_fill_pattern = ctx;\
		7408	}\
		7409	else\
		7410	{\
11874	schaersvoo	7411	setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);};return;\
		7412	};",canvas_root_id,canvas_root_id);
7614	schaersvoo	7413	break;
8224	bpr	7414
7614	schaersvoo	7415	case DRAW_IMAGEFILL:/* not used for userdraw */
13970	obado	7416	fprintf(js_include_file,"\n/* draw imagefill */\n\
11874	schaersvoo	7417	var draw_imagefill = function(canvas_type,x0,y0,URL,xsize,ysize,use_userdraw,use_scaling){\
11854	schaersvoo	7418	if( typeof(fill_canvas_no) != 'object' ){ var fill_canvas_no = []; };\
		7419	var fc = %d+canvas_type;\
		7420	fill_canvas_no.push(fc);\
		7421	var obj = create_canvas%d(fc,xsize,ysize);\
		7422	var ctx = obj.getContext('2d');\
		7423	var img = new Image();\
		7424	img.src = URL;\
11857	schaersvoo	7425	obj.style.visibility = 'hidden';\
		7426	img.onload = function(){\
11874	schaersvoo	7427	if( use_scaling == 1 ){\
		7428	ctx.drawImage(img,x0,y0,xsize,ysize);\
		7429	}else{\
		7430	var w0 = img.width;var h0 = img.height;var w;var h;\
		7431	for( w = x0; w < xsize ; w = w + w0 ){\
		7432	for( h = y0; h < ysize; h = h + h0){\
		7433	ctx.drawImage(img,w,h,w0,h0);\
		7434	};\
		7435	};\
		7436	};\
11857	schaersvoo	7437	if( use_userdraw ){\
		7438	image_pattern = ctx;\
		7439	}\
		7440	else\
		7441	{\
		7442	setTimeout(function(){ filltoborder( x0,y0,'red','red',canvas_type,true,ctx); },500);\
		7443	};\
		7444	};\
11854	schaersvoo	7445	};",canvas_root_id,canvas_root_id);
7614	schaersvoo	7446	break;
8224	bpr	7447
7614	schaersvoo	7448	case DRAW_DOTFILL:/* not used for userdraw */
13970	obado	7449	fprintf(js_include_file,"\n/* draw dotfill */\n\
11827	schaersvoo	7450	var dot_fill_pattern;\
11823	schaersvoo	7451	var draw_dotfill = function(canvas_type,x0,y0,dx,dy,radius,color,opacity,xsize,ysize,use_userdraw){\n\
11820	schaersvoo	7452	if( dx == 0 \|\| dy == 0 ){alert(\"increment is zero !!! \");return;};\
11818	schaersvoo	7453	if( typeof(fill_canvas_no) != 'object' ){ var fill_canvas_no = []; };\
11820	schaersvoo	7454	var fc = %d+canvas_type;\
11818	schaersvoo	7455	fill_canvas_no.push(fc);\
11820	schaersvoo	7456	var obj = create_canvas%d(fc,xsize,ysize);\
		7457	var ctx = obj.getContext('2d');\
		7458	var x,y;\
		7459	ctx.fillStyle='rgba(255,255,255,0.01)';\
		7460	ctx.rect(0,0,xsize,ysize);\
		7461	ctx.fill();\
		7462	ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
		7463	ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
		7464	for( x = 0 ; x < xsize ; x = x + dx ){\
		7465	for( y = 0 ; y < ysize ; y = y + dy ){\
		7466	ctx.beginPath();\
		7467	ctx.arc(x,y,radius,0,2*Math.PI,false);\
		7468	ctx.closePath();\
		7469	ctx.fill();\
		7470	};\
		7471	};\
11823	schaersvoo	7472	if( use_userdraw ){\
11824	schaersvoo	7473	dot_fill_pattern = ctx;\
11823	schaersvoo	7474	}\
		7475	else\
		7476	{\
11874	schaersvoo	7477	setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);\
		7478	};\
		7479	return;\
		7480	};",canvas_root_id,canvas_root_id);
7614	schaersvoo	7481	break;
7645	schaersvoo	7482
11830	schaersvoo	7483	case DRAW_TEXTFILL:/* not used for userdraw */
13970	obado	7484	fprintf(js_include_file,"\n/* draw textfill */\n\
11830	schaersvoo	7485	var text_fill_pattern;\
		7486	var draw_textfill = function(canvas_type,x0,y0,color,fontfamily,xsize,ysize,txt,use_userdraw){\n\
		7487	if( typeof(fill_canvas_no) != 'object' ){ var fill_canvas_no = []; };\
		7488	var fc = %d+canvas_type;\
		7489	fill_canvas_no.push(fc);\
		7490	var obj = create_canvas%d(fc,xsize,ysize);\
		7491	var ctx = obj.getContext('2d');\
		7492	ctx.font = fontfamily;\
11832	schaersvoo	7493	var dx = (ctx.measureText(txt)).width;\
11830	schaersvoo	7494	var dy = parseInt(fontfamily)+2;\
		7495	ctx.fillStyle='rgba(255,255,255,0.01)';\
		7496	ctx.rect(0,0,xsize,ysize);\
		7497	ctx.fill();\
		7498	ctx.fillStyle=\"rgba(\"+color+\",0.01)\";\
		7499	for(var x = 0 ; x < xsize ; x = x + dx ){\
		7500	for(var y = 0 ; y < ysize ; y = y + dy ){\
		7501	ctx.fillText(txt,x,y);\
		7502	};\
		7503	};\
		7504	if( use_userdraw ){\
		7505	text_fill_pattern = ctx;\
		7506	}\
		7507	else\
		7508	{\
		7509	setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);};\
		7510	return;};",canvas_root_id,canvas_root_id);
		7511	break;
		7512
7647	schaersvoo	7513	case DRAW_DIAMONDFILL:/* not used for userdraw */
13970	obado	7514	fprintf(js_include_file,"\n/* draw hatch fill */\n\
11827	schaersvoo	7515	var diamond_fill_pattern;\
11823	schaersvoo	7516	var draw_diamondfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
11820	schaersvoo	7517	if( dx == 0 \|\| dy == 0 ){alert(\"increment is zero !!! \");return;};\
		7518	if( typeof(fill_canvas_no) != 'object' ){ var fill_canvas_no = []; };\
		7519	var fc = %d+canvas_type;\
		7520	fill_canvas_no.push(fc);\
		7521	var obj = create_canvas%d(fc,xsize,ysize);\
		7522	var ctx = obj.getContext('2d');\
7614	schaersvoo	7523	var x;\
		7524	var y;\
		7525	ctx.lineWidth = linewidth;\
11820	schaersvoo	7526	ctx.fillStyle='rgba(255,255,255,0.01)';\
		7527	ctx.rect(0,0,xsize,ysize);\
		7528	ctx.fill();\
11088	schaersvoo	7529	if(linewidth%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
11820	schaersvoo	7530	ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
7614	schaersvoo	7531	y = ysize;\
11820	schaersvoo	7532	ctx.beginPath();\
		7533	for( x = 0 ; x < xsize ; x = x + dx ){\
		7534	ctx.moveTo(x,0);\
7614	schaersvoo	7535	ctx.lineTo(xsize,y);\
		7536	y = y - dy;\
		7537	};\
11820	schaersvoo	7538	y=0;\
7614	schaersvoo	7539	for( x = xsize ; x > 0 ; x = x - dx){\
		7540	ctx.moveTo(x,ysize);\
11820	schaersvoo	7541	ctx.lineTo(0,y);\
7614	schaersvoo	7542	y = y + dy;\
		7543	};\
11820	schaersvoo	7544	y = 0;\
		7545	for( x = 0 ; x < xsize ; x = x + dx ){\
		7546	ctx.moveTo(x,0);\
		7547	ctx.lineTo(0,y);\
		7548	y = y + dy;\
		7549	};\
		7550	y = 0;\
		7551	for( x = 0 ; x < xsize ; x = x + dx ){\
7614	schaersvoo	7552	ctx.moveTo(xsize,y);\
		7553	ctx.lineTo(x,ysize);\
11820	schaersvoo	7554	y = y + dy;\
7614	schaersvoo	7555	};\
11820	schaersvoo	7556	ctx.closePath();\
7614	schaersvoo	7557	ctx.stroke();\
11823	schaersvoo	7558	if( use_userdraw ){\
11827	schaersvoo	7559	diamond_fill_pattern = ctx;\
11823	schaersvoo	7560	}\
		7561	else\
		7562	{\
		7563	setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);};\
7614	schaersvoo	7564	return;\
11820	schaersvoo	7565	}",canvas_root_id,canvas_root_id);
7614	schaersvoo	7566	break;
8224	bpr	7567
7647	schaersvoo	7568	case DRAW_HATCHFILL:/* not used for userdraw */
13970	obado	7569	fprintf(js_include_file,"\n/* draw hatch fill */\n\
11827	schaersvoo	7570	var hatch_fill_pattern;\
11823	schaersvoo	7571	var draw_hatchfill = function(canvas_type,x0,y0,dx,dy,linewidth,color,stroke_opacity,xsize,ysize,use_userdraw){\
11820	schaersvoo	7572	if( dx == 0 \|\| dy == 0 ){alert(\"increment is zero !!! \");return;};\
		7573	if( typeof(fill_canvas_no) != 'object' ){ var fill_canvas_no = []; };\
		7574	var fc = %d+canvas_type;\
		7575	fill_canvas_no.push(fc);\
		7576	var obj = create_canvas%d(fc,xsize,ysize);\
		7577	var ctx = obj.getContext('2d');\
		7578	var x,y;\
		7579	ctx.fillStyle='rgba(255,255,255,0.01)';\
		7580	ctx.rect(0,0,xsize,ysize);\
		7581	ctx.fill();\
		7582	ctx.strokeStyle=\"rgba(\"+color+\",0.01)\";\
7647	schaersvoo	7583	ctx.lineWidth = linewidth;\
11088	schaersvoo	7584	if(linewidth%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7647	schaersvoo	7585	y = ysize;\
11820	schaersvoo	7586	ctx.beginPath();\
		7587	for( x = 0 ; x < xsize ; x = x + dx ){\
		7588	ctx.moveTo(x,0);\
7647	schaersvoo	7589	ctx.lineTo(xsize,y);\
		7590	y = y - dy;\
		7591	};\
11820	schaersvoo	7592	y = 0;\
7647	schaersvoo	7593	for( x = xsize ; x >= dx ; x = x - dx){\
		7594	ctx.moveTo(x,ysize);\
11820	schaersvoo	7595	ctx.lineTo(0,y);\
7647	schaersvoo	7596	y = y + dy;\
		7597	};\
11820	schaersvoo	7598	ctx.closePath();\
7647	schaersvoo	7599	ctx.stroke();\
11823	schaersvoo	7600	if( use_userdraw ){\
		7601	hatch_fill_pattern = ctx;\
		7602	}\
		7603	else\
		7604	{\
		7605	setTimeout(function(){ filltoborder( x0,y0,color,color,canvas_type,true,ctx); },500);};\
7647	schaersvoo	7606	return;\
11820	schaersvoo	7607	};",canvas_root_id,canvas_root_id);
7647	schaersvoo	7608	break;
7614	schaersvoo	7609	case DRAW_CIRCLES:/* used for userdraw */
13970	obado	7610	fprintf(js_include_file,"\n/* draw circles */\n\
11874	schaersvoo	7611	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
8105	schaersvoo	7612	var draw_circles = function(ctx,x_points,y_points,radius,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	7613	ctx.save();\
8071	schaersvoo	7614	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7615	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7616	ctx.lineWidth = line_width;\
11839	schaersvoo	7617	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7618	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\n\
11874	schaersvoo	7619	var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
11875	schaersvoo	7620	if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
11088	schaersvoo	7621	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7622	for(var p = 0 ; p < x_points.length ; p++ ){\
		7623	ctx.beginPath();\
		7624	ctx.arc(x_points[p],y_points[p],radius[p],0,2*Math.PI,false);\
		7625	ctx.closePath();\
11839	schaersvoo	7626	if(use_filled != 0 ){ctx.fill();};\
7614	schaersvoo	7627	ctx.stroke();\
		7628	}\
		7629	ctx.restore();\
		7630	return;\
7653	schaersvoo	7631	};");
7614	schaersvoo	7632	break;
7663	schaersvoo	7633	case DRAW_POLYLINE:/* user for userdraw : draw lines through points */
13970	obado	7634	fprintf(js_include_file,"\n/* draw polyline */\n\
11874	schaersvoo	7635	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
8105	schaersvoo	7636	var draw_polyline = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7663	schaersvoo	7637	ctx.save();\
8071	schaersvoo	7638	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7663	schaersvoo	7639	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7640	ctx.lineWidth = line_width;\
11088	schaersvoo	7641	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7663	schaersvoo	7642	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7643	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7644	ctx.clearRect(0,0,xsize,ysize);\
		7645	ctx.beginPath();\
		7646	for(var p = 0 ; p < x_points.length-1 ; p++ ){\
		7647	ctx.moveTo(x_points[p],y_points[p]);\
		7648	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		7649	}\
		7650	ctx.closePath();\
		7651	ctx.stroke();\
		7652	for(var p = 0 ; p < x_points.length ; p++ ){\
		7653	ctx.beginPath();\
		7654	ctx.arc(x_points[p],y_points[p],line_width,0,2*Math.PI,false);\
		7655	ctx.closePath();ctx.fill();ctx.stroke();\
		7656	};\
		7657	ctx.restore();\
		7658	return;\
		7659	};");
		7660	break;
8224	bpr	7661
7614	schaersvoo	7662	case DRAW_SEGMENTS:/* used for userdraw */
13970	obado	7663	fprintf(js_include_file,"\n/* draw segments */\n\
8105	schaersvoo	7664	var draw_segments = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	7665	ctx.save();\
8071	schaersvoo	7666	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7667	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7668	ctx.lineWidth = line_width;\
11088	schaersvoo	7669	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7670	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7671	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7672	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		7673	ctx.beginPath();\
		7674	ctx.moveTo(x_points[p],y_points[p]);\
		7675	ctx.lineTo(x_points[p+1],y_points[p+1]);\
		7676	ctx.closePath();\
		7677	ctx.stroke();\
		7678	}\
		7679	ctx.restore();\
		7680	return;\
		7681	};");
		7682	break;
8224	bpr	7683
7614	schaersvoo	7684	case DRAW_LINES:/* used for userdraw */
13970	obado	7685	fprintf(js_include_file,"\n/* draw lines */\n\
7614	schaersvoo	7686	function calc_line(x1,x2,y1,y2){\
		7687	var marge = 2;\
		7688	if(x1 < x2+marge && x1>x2-marge){\
		7689	return [x1,0,x1,ysize];\
		7690	};\
		7691	if(y1 < y2+marge && y1>y2-marge){\
		7692	return [0,y1,xsize,y1];\
		7693	};\
		7694	var Y1 = y1 - (x1)*(y2 - y1)/(x2 - x1);\
		7695	var Y2 = y1 + (xsize - x1)*(y2 - y1)/(x2 - x1);\
		7696	return [0,Y1,xsize,Y2];\
		7697	};\
8105	schaersvoo	7698	var draw_lines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	7699	ctx.save();\
		7700	var line = new Array(4);\
8071	schaersvoo	7701	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7702	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7703	ctx.lineWidth = line_width;\
11088	schaersvoo	7704	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7705	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7706	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7707	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		7708	line = calc_line(x_points[p],x_points[p+1],y_points[p],y_points[p+1]);\
		7709	ctx.beginPath();\
		7710	ctx.moveTo(line[0],line[1]);\
		7711	ctx.lineTo(line[2],line[3]);\
		7712	ctx.closePath();\
		7713	ctx.stroke();\
		7714	}\
		7715	ctx.restore();\
		7716	return;\
		7717	};");
		7718	break;
		7719
8244	schaersvoo	7720	case DRAW_DEMILINES:/* used for userdraw */
13970	obado	7721	fprintf(js_include_file,"\n/* draw demilines */\n\
8244	schaersvoo	7722	function find_inf_point(x1,y1,x2,y2){\
		7723	if(x1<x2+2 && x1>x2-2){if(y1<y2){return [x1,y1,x1,ysize];}else{return [x1,0,x1,y1];};};\
		7724	var rc = (y2 - y1)/(x2 - x1);var q = y1 - (x1)*rc;\
		7725	if( x1 < x2 ){ return [x1,y1,xsize,rc*xsize+q];}else{return [x1,y1,0,q];};\
		7726	};\
		7727	var draw_demilines = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
		7728	ctx.save();\
		7729	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
		7730	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7731	ctx.lineWidth = line_width;\
11088	schaersvoo	7732	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
8244	schaersvoo	7733	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7734	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7735	var pair = new Array(4);\
		7736	for(var p = 0 ; p < x_points.length ; p = p+2 ){\
		7737	pair = find_inf_point(x_points[p],y_points[p],x_points[p+1],y_points[p+1]);\
		7738	ctx.beginPath();\
		7739	ctx.moveTo(pair[0],pair[1]);\
		7740	ctx.lineTo(pair[2],pair[3]);\
		7741	ctx.closePath();\
		7742	ctx.stroke();\
		7743	}\
		7744	ctx.restore();\
		7745	return;\
		7746	};");
		7747	break;
		7748
7614	schaersvoo	7749	case DRAW_CROSSHAIRS:/* used for userdraw */
13970	obado	7750	fprintf(js_include_file,"\n/* draw crosshairs */\n\
8105	schaersvoo	7751	var draw_crosshairs = function(ctx,x_points,y_points,line_width,crosshair_size,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix){\
12311	schaersvoo	7752	ctx.save();\
8071	schaersvoo	7753	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7754	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7755	ctx.lineWidth = line_width;\
11088	schaersvoo	7756	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7757	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7758	var x1,x2,y1,y2;\
		7759	for(var p = 0 ; p < x_points.length ; p++ ){\
		7760	x1 = x_points[p] - crosshair_size;\
		7761	x2 = x_points[p] + crosshair_size;\
		7762	y1 = y_points[p] - crosshair_size;\
		7763	y2 = y_points[p] + crosshair_size;\
		7764	ctx.beginPath();\
		7765	ctx.moveTo(x1,y1);\
		7766	ctx.lineTo(x2,y2);\
		7767	ctx.closePath();\
		7768	ctx.stroke();\
		7769	ctx.beginPath();\
		7770	ctx.moveTo(x2,y1);\
		7771	ctx.lineTo(x1,y2);\
		7772	ctx.closePath();\
		7773	ctx.stroke();\
		7774	}\
		7775	ctx.restore();\
		7776	return;\
7653	schaersvoo	7777	};");
7614	schaersvoo	7778	break;
		7779
		7780	case DRAW_RECTS:/* used for userdraw */
13970	obado	7781	fprintf(js_include_file,"\n/* draw rects */\n\
11874	schaersvoo	7782	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
8105	schaersvoo	7783	var draw_rects = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
12000	schaersvoo	7784	var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
7614	schaersvoo	7785	ctx.save();\
8071	schaersvoo	7786	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7787	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7788	ctx.lineWidth = line_width;\
11088	schaersvoo	7789	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
8448	schaersvoo	7790	ctx.strokeStyle = 'rgba('+stroke_color+','+stroke_opacity+')';\
7614	schaersvoo	7791	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];}};\
11875	schaersvoo	7792	if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
7614	schaersvoo	7793	for(var p = 0 ; p < x_points.length ; p = p + 2){\
		7794	ctx.beginPath();\
		7795	ctx.rect(x_points[p],y_points[p],x_points[p+1]-x_points[p],y_points[p+1]-y_points[p]);\
		7796	ctx.closePath();\
11839	schaersvoo	7797	if(use_filled != 0 ){ctx.fill();}\
7614	schaersvoo	7798	ctx.stroke();\
		7799	};\
		7800	ctx.restore();\
		7801	return;\
7653	schaersvoo	7802	};");
7614	schaersvoo	7803	break;
		7804
		7805	case DRAW_ROUNDRECTS:/* used for userdraw */
13970	obado	7806	fprintf(js_include_file,"\n/* draw round rects */\n\
11874	schaersvoo	7807	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
8105	schaersvoo	7808	var draw_roundrects = function(ctx,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
12000	schaersvoo	7809	var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
7614	schaersvoo	7810	ctx.save();\
8071	schaersvoo	7811	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7812	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7813	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
9462	schaersvoo	7814	ctx.lineWidth = line_width;\
11088	schaersvoo	7815	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
11875	schaersvoo	7816	if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
7614	schaersvoo	7817	var x,y,w,h,r;\
		7818	for(var p = 0; p < x_points.length; p = p+2){\
		7819	x = x_points[p];y = y_points[p];w = x_points[p+1] - x;h = y_points[p+1] - y;r = parseInt(0.1*w);\
		7820	ctx.beginPath();ctx.moveTo(x + r, y);\
		7821	ctx.lineTo(x + w - r, y);\
		7822	ctx.quadraticCurveTo(x + w, y, x + w, y + r);\
		7823	ctx.lineTo(x + w, y + h - r);\
		7824	ctx.quadraticCurveTo(x + w, y + h, x + w - r, y + h);\
		7825	ctx.lineTo(x + r, y + h);\
		7826	ctx.quadraticCurveTo(x, y + h, x, y + h - r);\
		7827	ctx.lineTo(x, y + r);\
		7828	ctx.quadraticCurveTo(x, y, x + r, y);\
		7829	ctx.closePath();if( use_dashed == 1 ){ctx.setLineDash([dashtype0,dashtype1]);};\
		7830	ctx.strokeStyle =\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
11839	schaersvoo	7831	if( use_filled != 0 ){ctx.fill();};\
7614	schaersvoo	7832	ctx.stroke();\
		7833	}\
		7834	ctx.restore();\
7653	schaersvoo	7835	};");
8224	bpr	7836	break;
7614	schaersvoo	7837
		7838	case DRAW_ELLIPSES:/* not used for userdraw */
13970	obado	7839	fprintf(js_include_file,"\n/* draw ellipses */\n\
11874	schaersvoo	7840	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
8105	schaersvoo	7841	var draw_ellipses = function(canvas_type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	7842	var obj;\
		7843	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		7844	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		7845	}\
		7846	else\
		7847	{\
		7848	obj = create_canvas%d(canvas_type,xsize,ysize);\
		7849	};\
		7850	var ctx = obj.getContext(\"2d\");\
		7851	ctx.save();\
8071	schaersvoo	7852	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7853	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
11875	schaersvoo	7854	if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
7614	schaersvoo	7855	var cx,cy,ry,rx;\
		7856	ctx.lineWidth = line_width;\
11088	schaersvoo	7857	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7858	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7859	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7860	for(var p=0;p< x_points.length;p = p+2){\
		7861	ctx.beginPath();\
		7862	cx = x_points[p];cy = y_points[p];rx = 0.25x_points[p+1];ry = 0.25y_points[p+1];\
		7863	ctx.translate(cx - rx, cy - ry);\
		7864	ctx.scale(rx, ry);\
		7865	ctx.arc(1, 1, 1, 0, 2 * Math.PI, false);\
11839	schaersvoo	7866	if( use_filled != 0 ){ctx.fill();}\
7614	schaersvoo	7867	ctx.stroke();\
		7868	};\
		7869	ctx.restore();\
7653	schaersvoo	7870	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	7871	break;
		7872
		7873	case DRAW_PATHS: /* used for userdraw */
13970	obado	7874	fprintf(js_include_file,"\n/* draw paths */\n\
11874	schaersvoo	7875	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
8105	schaersvoo	7876	var draw_paths = function(ctx,x_points,y_points,line_width,closed_path,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	7877	ctx.save();\
8071	schaersvoo	7878	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7879	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7880	ctx.lineWidth = line_width;\
11088	schaersvoo	7881	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7882	ctx.lineJoin = \"round\";\
		7883	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
11874	schaersvoo	7884	var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
11875	schaersvoo	7885	if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
7614	schaersvoo	7886	ctx.beginPath();\
		7887	ctx.moveTo(x_points[0],y_points[0]);\
		7888	for(var p = 1 ; p < x_points.length ; p++ ){ctx.lineTo(x_points[p],y_points[p]);}\
		7889	if(closed_path == 1){ctx.lineTo(x_points[0],y_points[0]);ctx.closePath();}\
		7890	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
11839	schaersvoo	7891	if(use_filled != 0){ctx.fill();}\
7614	schaersvoo	7892	ctx.stroke();\
		7893	ctx.restore();\
		7894	return;\
		7895	};");
8224	bpr	7896
7614	schaersvoo	7897	break;
		7898	case DRAW_ARROWS:/* used for userdraw */
13970	obado	7899	fprintf(js_include_file,"\n/* draw arrows */\n\
8105	schaersvoo	7900	var draw_arrows = function(ctx,x_points,y_points,arrow_head,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,dashtype1,type,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	7901	ctx.save();\
8071	schaersvoo	7902	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	7903	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		7904	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7905	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		7906	ctx.lineWidth = line_width;\
11088	schaersvoo	7907	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	7908	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		7909	ctx.lineCap = \"round\";\
		7910	var x1,y1,x2,y2,dx,dy,len;\
		7911	for(var p = 0 ; p < x_points.length - 1 ; p = p +2){\
7874	schaersvoo	7912	ctx.save();\
7614	schaersvoo	7913	x1 = x_points[p];y1 = y_points[p];x2 = x_points[p+1];y2 = y_points[p+1];dx = x2 - x1;dy = y2 - y1;\
		7914	len = Math.sqrt(dxdx+dydy);\
		7915	ctx.translate(x2,y2);\
		7916	ctx.rotate(Math.atan2(dy,dx));\
		7917	ctx.lineCap = \"round\";\
		7918	ctx.beginPath();\
		7919	ctx.moveTo(0,0);\
		7920	ctx.lineTo(-len,0);\
		7921	ctx.closePath();\
		7922	ctx.stroke();\
		7923	ctx.beginPath();\
		7924	ctx.moveTo(0,0);\
		7925	ctx.lineTo(-1arrow_head,-0.5arrow_head);\
		7926	ctx.lineTo(-1arrow_head, 0.5arrow_head);\
		7927	ctx.closePath();\
		7928	ctx.fill();\
7874	schaersvoo	7929	ctx.restore();\
7614	schaersvoo	7930	if( type == 2 ){\
		7931	ctx.save();\
		7932	ctx.translate(x1,y1);\
		7933	ctx.rotate(Math.atan2(-dy,-dx));\
		7934	ctx.beginPath();\
		7935	ctx.moveTo(0,0);\
8347	schaersvoo	7936	ctx.lineTo(-1arrow_head,-0.4arrow_head);\
		7937	ctx.lineTo(-1arrow_head, 0.4arrow_head);\
7614	schaersvoo	7938	ctx.closePath();\
		7939	ctx.stroke();\
		7940	ctx.fill();\
7874	schaersvoo	7941	ctx.restore();\
8379	schaersvoo	7942	};\
		7943	};\
7614	schaersvoo	7944	ctx.restore();\
		7945	return;\
7653	schaersvoo	7946	};");
7614	schaersvoo	7947	break;
		7948
		7949	case DRAW_VIDEO:/* not used for userdraw */
13970	obado	7950	fprintf(js_include_file,"\n/* draw video */\n\
8105	schaersvoo	7951	var draw_video = function(canvas_root_id,x,y,w,h,URL){\
7614	schaersvoo	7952	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		7953	var video_div = document.createElement(\"div\");\
		7954	canvas_div.appendChild(video_div);\
		7955	video_div.style.position = \"absolute\";\
		7956	video_div.style.left = x+\"px\";\
		7957	video_div.style.top = y+\"px\";\
		7958	video_div.style.width = w+\"px\";\
		7959	video_div.style.height = h+\"px\";\
		7960	var video = document.createElement(\"video\");\
		7961	video_div.appendChild(video);\
		7962	video.style.width = w+\"px\";\
		7963	video.style.height = h+\"px\";\
		7964	video.autobuffer = true;\
		7965	video.controls = true;video.autoplay = false;\
		7966	var src = document.createElement(\"source\");\
		7967	src.type = \"video/mp4\";\
		7968	src.src = URL;\
		7969	video.appendChild(src);\
		7970	video.load();\
		7971	return;\
8224	bpr	7972	};");
7614	schaersvoo	7973	break;
8224	bpr	7974
7614	schaersvoo	7975	case DRAW_AUDIO:/* not used for userdraw */
13970	obado	7976	fprintf(js_include_file,"\n/* draw audio */\n\
8105	schaersvoo	7977	var draw_audio = function(canvas_root_id,x,y,w,h,loop,visible,URL1,URL2){\
7614	schaersvoo	7978	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		7979	var audio_div = document.createElement(\"div\");\
		7980	canvas_div.appendChild(audio_div);\
		7981	audio_div.style.position = \"absolute\";\
		7982	audio_div.style.left = x+\"px\";\
		7983	audio_div.style.top = y+\"px\";\
		7984	audio_div.style.width = w+\"px\";\
		7985	audio_div.style.height = h+\"px\";\
		7986	var audio = document.createElement(\"audio\");\
		7987	audio_div.appendChild(audio);\
		7988	audio.setAttribute(\"style\",\"width:\"+w+\"px;height:\"+h+\"px\");\
		7989	audio.autobuffer = true;\
8379	schaersvoo	7990	if(visible == 1 ){ audio.controls = true;audio.autoplay = false;}else{ audio.controls = false;audio.autoplay = true;};\
		7991	if(loop == 1 ){ audio.loop = true;}else{ audio.loop = false;};\
7614	schaersvoo	7992	var src1 = document.createElement(\"source\");\
		7993	src1.type = \"audio/ogg\";\
		7994	src1.src = URL1;\
		7995	audio.appendChild(src1);\
		7996	var src2 = document.createElement(\"source\");\
		7997	src2.type = \"audio/mpeg\";\
		7998	src2.src = URL2;\
		7999	audio.appendChild(src2);\
		8000	audio.load();\
		8001	return;\
7653	schaersvoo	8002	};");
7614	schaersvoo	8003	break;
8224	bpr	8004
7614	schaersvoo	8005	case DRAW_HTTP:/* not used for userdraw */
13970	obado	8006	fprintf(js_include_file,"\n/* draw http */\n\
8105	schaersvoo	8007	var draw_http = function(canvas_root_id,x,y,w,h,URL){\
7614	schaersvoo	8008	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		8009	var http_div = document.createElement(\"div\");\
		8010	var iframe = document.createElement(\"iframe\");\
		8011	canvas_div.appendChild(http_div);\
		8012	http_div.appendChild(iframe);\
		8013	iframe.src = URL;\
		8014	iframe.setAttribute(\"width\",w);\
		8015	iframe.setAttribute(\"height\",h);\
		8016	return;\
7653	schaersvoo	8017	};");
7614	schaersvoo	8018	break;
8224	bpr	8019
13829	bpr	8020	case DRAW_XML: /*
		8021	onclick=1 : click
11238	schaersvoo	8022	onclick=2 drag
		8023	xy:drag_type = 0;
		8024	x: drag_type = 1;
		8025	y: drag_type = 2;
		8026	*/
		8027
13970	obado	8028	fprintf(js_include_file,"\n/* draw xml */\n\
14044	schaersvoo	8029	var draw_xml = function(canvas_root_id,x,y,mathml,drag_type,onclick,click_cnt,stroke_color,stroke_opacity,fill_color,fill_opacity,centered,use_snap){\
7614	schaersvoo	8030	var canvas_div = document.getElementById(\"canvas_div\"+canvas_root_id);\
		8031	var xml_div = document.createElement(\"div\");\
		8032	canvas_div.appendChild(xml_div);\
		8033	xml_div.innerHTML = mathml;\
14038	schaersvoo	8034	xml_div.style.position = \"absolute\"; xml_div.style.left = x+\"px\";xml_div.style.top = y+\"px\";\
		8035	var factor = 1;\
		8036	if( centered > 0 ){ factor = 0.5;};\
		8037	var xml_div_width = factor*(parseInt(window.getComputedStyle(xml_div).width , 10));\
		8038	var xml_div_height = factor*(parseInt(window.getComputedStyle(xml_div).height ,10));\
8379	schaersvoo	8039	xml_div.style.color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
11745	schaersvoo	8040	var color_org = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
11756	schaersvoo	8041	var back_color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		8042	var no_color = \"rgba(255,255,255,0)\";\
11745	schaersvoo	8043	var dragging = false;\
11747	schaersvoo	8044	if( onclick == 2 ){reply[click_cnt] = px2x(x)+','+px2y(y);};\
		8045	if( onclick == 1 ){reply[click_cnt] = 0;};\
		8046	if( onclick == 2 ){\
		8047	xml_div.onclick = function(){\
11756	schaersvoo	8048	canvas_div.onclick = function(evt){if(dragging){dragging = false;xml_div.style.color = color_org; xml_div.style.backgroundColor = no_color;}else{dragging = true;xml_div.style.color = 'red';xml_div.style.backgroundColor = back_color;};};\
11747	schaersvoo	8049	canvas_div.onmousemove = function(evt){\
		8050	if(!dragging){return;};\
		8051	var x1;var y1;\
		8052	var mouse = dragstuff.getMouse(evt,xml_div);\
14044	schaersvoo	8053	var xy = multisnap_check(mouse.x,mouse.y,use_snap);\
11747	schaersvoo	8054	switch(drag_type){\
14044	schaersvoo	8055	case 0: x1 = xy[0]-xml_div_width;y1=xy[1]-xml_div_height;break;\
		8056	case 1: x1 = xy[0]-xml_div_width;y1 = y;break;\
		8057	case 2: x1 = x;y1 = xy[1]-xml_div_height;break;\
		8058	default:x1 = xy[0];y1 = xy[1]; break;\
11747	schaersvoo	8059	};\
		8060	xml_div.style.left = x1 + 'px';xml_div.style.top = y1 + 'px';\
		8061	reply[click_cnt] = px2x(x1)+','+px2y(y1);\
11238	schaersvoo	8062	};\
7614	schaersvoo	8063	};\
11238	schaersvoo	8064	};\
		8065	if(onclick == 1){\
11747	schaersvoo	8066	xml_div.onclick = function(){\
11756	schaersvoo	8067	if(reply[click_cnt] == 0){ reply[click_cnt] = 1; xml_div.style.color = 'red';xml_div.style.backgroundColor = back_color;}else{reply[click_cnt] = 0;xml_div.style.color = color_org;xml_div.style.backgroundColor = no_color;};};\
7614	schaersvoo	8068	};\
		8069	return;\
11745	schaersvoo	8070	};");
7614	schaersvoo	8071	break;
7654	schaersvoo	8072	case DRAW_SGRAPH:
8224	bpr	8073	/*
7654	schaersvoo	8074	xstart = given
		8075	ystart = given
		8076	sgraph(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily)
		8077	*/
13970	obado	8078	fprintf(js_include_file,"\n/* draw sgraph */\n\
8105	schaersvoo	8079	var draw_sgraph = function(canvas_type,precision,xmajor,ymajor,xminor,yminor,majorcolor,minorcolor,fontfamily,opacity,font_size){\
7658	schaersvoo	8080	var obj;if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){obj = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{ obj = create_canvas%d(canvas_type,xsize,ysize);};\
		8081	var ctx = obj.getContext(\"2d\");\
		8082	ctx.font = fontfamily;\
		8083	var minor_opacity = 0.8*opacity;\
		8084	ctx.clearRect(0,0,xsize,ysize);\
7976	schaersvoo	8085	var zero_x = 0.1*xsize;\
		8086	var zero_y = 0.9*ysize;\
8129	schaersvoo	8087	var snor_x;var snor_y;\
7654	schaersvoo	8088	if( xstart != xmin){\
7658	schaersvoo	8089	snor_x = 0.1*xsize;\
		8090	}\
		8091	else\
		8092	{\
		8093	snor_x = 0;\
		8094	xstart = xmin;\
		8095	};\
		8096	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		8097	ctx.lineWidth = 2;\
		8098	ctx.beginPath();\
		8099	ctx.moveTo(xsize,zero_y);\
		8100	ctx.lineTo(zero_x,zero_y);\
		8101	ctx.lineTo(zero_x,0);\
		8102	ctx.stroke();\
		8103	ctx.closePath();\
		8104	ctx.beginPath();\
		8105	ctx.moveTo(zero_x,zero_y);\
		8106	ctx.lineTo(zero_x + 0.25snor_x,zero_y - 0.1snor_x);\
		8107	ctx.lineTo(zero_x + 0.5snor_x,zero_y + 0.1snor_x);\
		8108	ctx.lineTo(zero_x + 0.75snor_x,zero_y - 0.1snor_x);\
		8109	ctx.lineTo(zero_x + snor_x,zero_y);\
		8110	ctx.stroke();\
		8111	ctx.closePath();\
		8112	ctx.beginPath();\
		8113	var num = xstart;\
7660	schaersvoo	8114	var flipflop = 1;\
7658	schaersvoo	8115	var step_x = xmajor*(xsize - zero_x - snor_x)/(xmax - xstart);\
7976	schaersvoo	8116	var txtsize;var txt_marge=step_x - 5;\
7658	schaersvoo	8117	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
7976	schaersvoo	8118	txtsize = ctx.measureText(num).width;\
		8119	if( txtsize > txt_marge ){if( flipflop == 1 ){flipflop = 0;}else{flipflop = 1;};};\
		8120	if( flipflop == 1){\
		8121	ctx.fillText(num,x - 0.5*txtsize,zero_y+font_size);\
		8122	}\
		8123	else\
		8124	{\
		8125	ctx.fillText(num,x - 0.5txtsize,zero_y+2font_size);\
8379	schaersvoo	8126	};\
7976	schaersvoo	8127	num = num + xmajor;\
7658	schaersvoo	8128	};\
		8129	ctx.stroke();\
		8130	ctx.closePath();\
		8131	ctx.lineWidth = 1;\
		8132	ctx.beginPath();\
		8133	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		8134	ctx.moveTo(x,zero_y);\
		8135	ctx.lineTo(x,0);\
		8136	};\
		8137	ctx.stroke();\
		8138	ctx.closePath();\
		8139	if( xminor > 1){\
		8140	ctx.lineWidth = 0.5;\
		8141	ctx.beginPath();\
		8142	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		8143	var minor_step_x = step_x / xminor;\
		8144	var nx;\
		8145	for(var x = zero_x+snor_x; x < xsize;x = x + step_x){\
		8146	num = 1;\
		8147	for(var p = 1 ; p < xminor ; p++){\
		8148	nx = x + num*minor_step_x;\
		8149	ctx.moveTo(nx,zero_y);\
		8150	ctx.lineTo(nx,0);\
		8151	num++;\
		8152	};\
		8153	};\
		8154	ctx.stroke();\
		8155	ctx.closePath();\
		8156	ctx.beginPath();\
		8157	ctx.lineWidth = 2;\
		8158	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		8159	for(var x = zero_x+snor_x ; x < xsize;x = x + step_x){\
		8160	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 12);\
		8161	};\
		8162	for(var x = zero_x+snor_x ; x < xsize;x = x + minor_step_x){\
		8163	ctx.moveTo(x,zero_y);ctx.lineTo(x,zero_y - 6);\
		8164	};\
		8165	ctx.stroke();\
		8166	ctx.closePath();\
		8167	ctx.lineWidth = 0.5;\
		8168	};\
		8169	xmin = xstart - (xmajor*(zero_x+snor_x)/step_x);\
		8170	if( ystart != ymin){\
		8171	snor_y = 0.1*ysize;\
		8172	}\
		8173	else\
		8174	{\
		8175	snor_y = 0;\
		8176	ystart = ymin;\
		8177	};\
		8178	ctx.lineWidth = 2;\
		8179	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		8180	ctx.beginPath();\
		8181	ctx.moveTo(zero_x,zero_y);\
		8182	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.25snor_y);\
		8183	ctx.lineTo(zero_x + 0.1snor_y,zero_y - 0.5snor_y);\
		8184	ctx.lineTo(zero_x - 0.1snor_y,zero_y - 0.75snor_y);\
		8185	ctx.lineTo(zero_x,zero_y - snor_y);\
		8186	ctx.stroke();\
		8187	ctx.closePath();\
		8188	ctx.beginPath();\
		8189	ctx.lineWidth = 1;\
		8190	num = ystart;\
		8191	var step_y = ymajor*(zero_y - snor_y)/(ymax - ystart);\
		8192	for(var y = zero_y - snor_y ; y > 0; y = y - step_y){\
		8193	ctx.moveTo(zero_x,y);\
		8194	ctx.lineTo(xsize,y);\
		8195	ctx.fillText(num,zero_x - ctx.measureText(num+\" \").width,parseInt(y+0.2*font_size));\
		8196	num = num + ymajor;\
		8197	};\
		8198	ctx.stroke();\
		8199	ctx.closePath();\
		8200	if( yminor > 1){\
		8201	ctx.lineWidth = 0.5;\
		8202	ctx.beginPath();\
		8203	ctx.strokeStyle = \"rgba(\"+minorcolor+\",\"+minor_opacity+\")\";\
		8204	var minor_step_y = step_y / yminor;\
		8205	var ny;\
		8206	for(var y = 0 ; y < zero_y - snor_y ;y = y + step_y){\
		8207	num = 1;\
		8208	for(var p = 1 ;p < yminor;p++){\
		8209	ny = y + num*minor_step_y;\
		8210	ctx.moveTo(zero_x,ny);\
		8211	ctx.lineTo(xsize,ny);\
		8212	num++;\
		8213	};\
		8214	};\
		8215	ctx.stroke();\
		8216	ctx.closePath();\
		8217	ctx.lineWidth = 2;\
		8218	ctx.beginPath();\
		8219	ctx.strokeStyle = \"rgba(\"+majorcolor+\",\"+opacity+\")\";\
		8220	for(var y = zero_y - snor_y ; y > 0 ;y = y - step_y){\
		8221	ctx.moveTo(zero_x,y);\
		8222	ctx.lineTo(zero_x+12,y);\
		8223	};\
		8224	for(var y = zero_y - snor_y ; y > 0 ;y = y - minor_step_y){\
		8225	ctx.moveTo(zero_x,y);\
		8226	ctx.lineTo(zero_x+6,y);\
		8227	};\
		8228	ctx.stroke();\
		8229	ctx.closePath();\
		8230	};\
		8231	ymin = ystart - (ymajor*(ysize - zero_y + snor_y)/step_y);\
11088	schaersvoo	8232	if( typeof(legend%d) !== 'undefined' ){\
7654	schaersvoo	8233	ctx.globalAlpha = 1.0;\
		8234	var y_offset = 2*font_size;\
		8235	var txt;var txt_size;\
		8236	var x_offset = xsize - 2*font_size;\
		8237	var l_length = legend%d.length;var barcolor = new Array();\
11088	schaersvoo	8238	if( typeof(legendcolors%d) !== 'undefined' ){\
7654	schaersvoo	8239	for(var p = 0 ; p < l_length ; p++){\
		8240	barcolor[p] = legendcolors%d[p];\
		8241	};\
		8242	}else{\
		8243	if( barcolor.length == 0 ){\
		8244	for(var p = 0 ; p < l_length ; p++){\
		8245	barcolor[p] = stroke_color;\
		8246	};\
		8247	};\
		8248	};\
		8249	for(var p = 0; p < l_length; p++){\
		8250	ctx.fillStyle = barcolor[p];\
		8251	txt = legend%d[p];\
		8252	txt_size = ctx.measureText(txt).width;\
		8253	ctx.fillText(legend%d[p],x_offset - txt_size, y_offset);\
		8254	y_offset = parseInt(y_offset + 1.5*font_size);\
		8255	};\
		8256	};\
11088	schaersvoo	8257	if( typeof(xaxislabel) !== 'undefined' ){\
7658	schaersvoo	8258	ctx.fillStyle = \'#000000\';\
		8259	var txt_size = ctx.measureText(xaxislabel).width + 4 ;\
		8260	ctx.fillText(xaxislabel,xsize - txt_size, zero_y - 7);\
		8261	};\
11088	schaersvoo	8262	if( typeof(yaxislabel) !== 'undefined'){\
7658	schaersvoo	8263	ctx.save();\
		8264	ctx.fillStyle = \'#000000\';\
		8265	var txt_size = ctx.measureText(yaxislabel).width;\
		8266	ctx.translate(zero_x+8 + font_size,txt_size+font_size);\
		8267	ctx.rotate(-0.5*Math.PI);\
		8268	ctx.fillText(yaxislabel,0,0);\
7874	schaersvoo	8269	ctx.restore();\
7658	schaersvoo	8270	};\
7654	schaersvoo	8271	};\n",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		8272	break;
11890	schaersvoo	8273	case DRAW_NUMBERLINE:
13970	obado	8274	fprintf(js_include_file,"\n/* draw numberline */\n\
11996	schaersvoo	8275	var draw_numberline = function(canvas_type,use_axis_numbering,x0,x1,xmajor,xminor,y0,y1,linewidth,strokecolor,strokeopacity,fontfamily,fontcolor,precision){\
11890	schaersvoo	8276	var obj = create_canvas%d(canvas_type,xsize,ysize);\
		8277	var ctx = obj.getContext(\"2d\");\
		8278	ctx.lineWidth = linewidth \|\| 1;\
		8279	ctx.strokeStyle = \"rgba(\"+strokecolor+\",\"+strokeopacity+\")\";\
		8280	ctx.font = fontfamily \|\| 'Ariel 12px';\
		8281	var fontsize = parseInt(ctx.font);\
		8282	ctx.fillStyle = \"rgba(\"+fontcolor+\",\"+strokeopacity+\")\";\
		8283	x1 = x2px(x1);\
		8284	x0 = x2px(x0);\
		8285	y0 = y2px(y0);\
		8286	y1 = y2px(y1);\
		8287	var sub_devision = -1;\
		8288	if( xminor%%2 == 0 ){ sub_devision = xminor/2; };\
11892	schaersvoo	8289	var ybase1 = parseInt( y0 + fontsize + 2 );\
		8290	var ybase2 = parseInt( ybase1 + fontsize + 2 );\
11890	schaersvoo	8291	var yh = Math.abs(parseInt( y0 - 0.3*(y0 -y1)));\
		8292	var ys = Math.abs(parseInt( y0 - 0.6*(y0 -y1)));\
		8293	xmajor = x2px(xmajor) - x2px(0);\
		8294	var i;var len;var p;\
		8295	xminor = xmajor / xminor;\
		8296	ctx.beginPath();\
		8297	for(p = x0 ; p < x1 ; p = p + xmajor){\
		8298	ctx.moveTo(p,y0);ctx.lineTo(p,y1);i = 0;\
		8299	for(var s = p ; s < p + xmajor ; s = s + xminor ){\
		8300	ctx.moveTo(s,y0);\
		8301	if( sub_devision == i){ ctx.lineTo(s,ys); } else { ctx.lineTo(s,yh); };\
		8302	i++;\
		8303	};\
		8304	};\
		8305	ctx.moveTo(p,y0);ctx.lineTo(p,y1);\
		8306	ctx.closePath();\
		8307	ctx.stroke();\
11996	schaersvoo	8308	if( use_axis_numbering >-1 ){\
11891	schaersvoo	8309	var str = x_strings[use_axis_numbering];\
		8310	len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired: text missing ! \");return;};\
11892	schaersvoo	8311	var corr;var x_nums;var x_text;var flipflop = 0;var off = ybase1;\
11890	schaersvoo	8312	ctx.beginPath();\
11891	schaersvoo	8313	if( x_strings_up[use_axis_numbering] == null){\
11890	schaersvoo	8314	for(var p = 0 ; p < len ; p = p+2){\
11891	schaersvoo	8315	var x_nums = x2px(eval(str[p]));\
		8316	var x_text = str[p+1];\
11890	schaersvoo	8317	corr = ctx.measureText(x_text).width;\
11892	schaersvoo	8318	if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
11996	schaersvoo	8319	ctx.fillText(x_text,parseInt(x_nums-0.5*corr),off);\
11890	schaersvoo	8320	};\
		8321	}\
		8322	else\
		8323	{\
		8324	for(var p = 0 ; p < len ; p = p+2){\
11891	schaersvoo	8325	x_nums = x2px(eval(str[p]));\
		8326	x_text = str[p+1];\
11892	schaersvoo	8327	corr = ctx.measureText(x_text).width + ybase1 - fontsize;\
11890	schaersvoo	8328	ctx.save();\
		8329	ctx.translate(x_nums+0.5*fontsize, corr);\
		8330	ctx.rotate(-1.5708);\
		8331	ctx.fillText(x_text,0,0);\
		8332	ctx.restore();\
		8333	};\
		8334	}\
		8335	}\
		8336	else\
		8337	{\
11892	schaersvoo	8338	var corr;var num;var flipflop = 0;var off = ybase1;\
		8339	var prec = parseInt(Math.log(precision)/Math.log(10));\
11890	schaersvoo	8340	for(var p = x0 ; p < x1+xmajor ; p = p+xmajor){\
11892	schaersvoo	8341	num = (px2x(p)).toFixed(prec);\
11996	schaersvoo	8342	corr = ctx.measureText(num).width;\
11892	schaersvoo	8343	if( corr > xmajor){ if(flipflop == 0 ){flipflop = 1; off = ybase2;}else{flipflop = 0; off = ybase1;};};\
11996	schaersvoo	8344	ctx.fillText(num,parseInt(p - 0.5*corr),off);\
11890	schaersvoo	8345	};\
		8346	};\
		8347	};",canvas_root_id);
		8348	break;
7614	schaersvoo	8349	case DRAW_GRID:/* not used for userdraw */
13970	obado	8350	fprintf(js_include_file,"\n/* draw grid */\n\
8105	schaersvoo	8351	var draw_grid%d = function(canvas_type,precision,stroke_opacity,xmajor,ymajor,xminor,yminor,tics_length,line_width,stroke_color,axis_color,font_size,font_family,use_axis,use_axis_numbering,use_rotate,angle,use_affine,affine_matrix,use_dashed,dashtype0,dashtype1,font_color,fill_opacity){\
7988	schaersvoo	8352	var obj;if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){obj = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{obj = create_canvas%d(canvas_type,xsize,ysize);};\
		8353	var ctx = obj.getContext(\"2d\");ctx.clearRect(0,0,xsize,ysize);\
7614	schaersvoo	8354	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		8355	ctx.save();\
8071	schaersvoo	8356	if( use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
7614	schaersvoo	8357	if( use_rotate == 1 ){ctx.translate(x2px(0),y2px(0));ctx.rotate(angleMath.PI/180);ctx.translate(-1(x2px(0)),-1*(y2px(0)));};\
		8358	var stroke_color = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		8359	ctx.fillStyle = \"rgba(\"+font_color+\",\"+1.0+\")\";\
		8360	var axis_color = \"rgba(\"+axis_color+\",\"+stroke_opacity+\")\";\
		8361	ctx.font = font_family;\
7988	schaersvoo	8362	var barcolor = new Array();\
7614	schaersvoo	8363	var xstep = xsize*xmajor/(xmax - xmin);\
		8364	var ystep = ysize*ymajor/(ymax - ymin);\
		8365	var x2step = xstep / xminor;\
		8366	var y2step = ystep / yminor;\
7996	schaersvoo	8367	var zero_x = x2px(0);;var zero_y = y2px(0);var f_x;var f_y;\
		8368	if(xmin < 0 ){ f_x = -1;}else{ f_x = 1;}\
		8369	if(ymin < 0 ){ f_y = -1;}else{ f_y = 1;}\
11088	schaersvoo	8370	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	8371	ctx.beginPath();\
		8372	ctx.lineWidth = line_width;\
		8373	ctx.strokeStyle = stroke_color;\
		8374	for(var p = zero_x ; p < xsize; p = p + xstep){\
		8375	ctx.moveTo(p,0);\
		8376	ctx.lineTo(p,ysize);\
		8377	};\
		8378	for(var p = zero_x ; p > 0; p = p - xstep){\
		8379	ctx.moveTo(p,0);\
		8380	ctx.lineTo(p,ysize);\
		8381	};\
		8382	for(var p = zero_y ; p < ysize; p = p + ystep){\
		8383	ctx.moveTo(0,p);\
		8384	ctx.lineTo(xsize,p);\
		8385	};\
		8386	for(var p = zero_y ; p > 0; p = p - ystep){\
		8387	ctx.moveTo(0,p);\
		8388	ctx.lineTo(xsize,p);\
		8389	};\
11088	schaersvoo	8390	if( typeof(xaxislabel) !== 'undefined' ){\
7614	schaersvoo	8391	ctx.save();\
		8392	ctx.font = \"italic \"+font_size+\"px Ariel\";\
12007	schaersvoo	8393	var corr = parseInt(1.1*ctx.measureText(xaxislabel).width);\
		8394	ctx.fillText(xaxislabel,xsize - corr,zero_y - tics_length - 0.4*font_size);\
7614	schaersvoo	8395	ctx.restore();\
		8396	};\
11088	schaersvoo	8397	if( typeof(yaxislabel) !== 'undefined' ){\
7614	schaersvoo	8398	ctx.save();\
		8399	ctx.font = \"italic \"+font_size+\"px Ariel\";\
12007	schaersvoo	8400	var corr = parseInt(ctx.measureText(yaxislabel).width + font_size);\
		8401	ctx.translate(zero_x+tics_length + font_size,corr);\
7614	schaersvoo	8402	ctx.rotate(-0.5*Math.PI);\
		8403	ctx.fillText(yaxislabel,0,0);\
		8404	ctx.restore();\
		8405	};\
		8406	ctx.stroke();\
		8407	ctx.closePath();\
		8408	if( use_axis == 1 ){\
7988	schaersvoo	8409	ctx.save();\
7614	schaersvoo	8410	ctx.beginPath();\
		8411	ctx.strokeStyle = stroke_color;\
		8412	ctx.lineWidth = 0.6*line_width;\
		8413	for(var p = zero_x ; p < xsize; p = p + x2step){\
		8414	ctx.moveTo(p,0);\
		8415	ctx.lineTo(p,ysize);\
		8416	};\
		8417	for(var p = zero_x ; p > 0; p = p - x2step){\
		8418	ctx.moveTo(p,0);\
		8419	ctx.lineTo(p,ysize);\
		8420	};\
		8421	for(var p = zero_y ; p < ysize; p = p + y2step){\
		8422	ctx.moveTo(0,p);\
		8423	ctx.lineTo(xsize,p);\
		8424	};\
		8425	for(var p = zero_y ; p > 0; p = p - y2step){\
		8426	ctx.moveTo(0,p);\
		8427	ctx.lineTo(xsize,p);\
		8428	};\
		8429	ctx.stroke();\
		8430	ctx.closePath();\
		8431	ctx.beginPath();\
		8432	ctx.lineWidth = 2*line_width;\
		8433	ctx.strokeStyle = axis_color;\
		8434	ctx.moveTo(0,zero_y);\
		8435	ctx.lineTo(xsize,zero_y);\
		8436	ctx.moveTo(zero_x,0);\
		8437	ctx.lineTo(zero_x,ysize);\
		8438	ctx.stroke();\
		8439	ctx.closePath();\
		8440	ctx.lineWidth = line_width+0.5;\
		8441	ctx.beginPath();\
		8442	for(var p = zero_x ; p < xsize; p = p + xstep){\
		8443	ctx.moveTo(p,zero_y-tics_length);\
		8444	ctx.lineTo(p,zero_y+tics_length);\
		8445	};\
		8446	for(var p = zero_x ; p > 0; p = p - xstep){\
		8447	ctx.moveTo(p,zero_y-tics_length);\
		8448	ctx.lineTo(p,zero_y+tics_length);\
		8449	};\
		8450	for(var p = zero_y ; p < ysize; p = p + ystep){\
		8451	ctx.moveTo(zero_x-tics_length,p);\
		8452	ctx.lineTo(zero_x+tics_length,p);\
		8453	};\
		8454	for(var p = zero_y ; p > 0; p = p - ystep){\
		8455	ctx.moveTo(zero_x-tics_length,p);\
		8456	ctx.lineTo(zero_x+tics_length,p);\
		8457	};\
		8458	for(var p = zero_x ; p < xsize; p = p + x2step){\
		8459	ctx.moveTo(p,zero_y-0.5*tics_length);\
		8460	ctx.lineTo(p,zero_y+0.5*tics_length);\
		8461	};\
		8462	for(var p = zero_x ; p > 0; p = p - x2step){\
		8463	ctx.moveTo(p,zero_y-0.5*tics_length);\
		8464	ctx.lineTo(p,zero_y+0.5*tics_length);\
		8465	};\
		8466	for(var p = zero_y ; p < ysize; p = p + y2step){\
		8467	ctx.moveTo(zero_x-0.5*tics_length,p);\
		8468	ctx.lineTo(zero_x+0.5*tics_length,p);\
		8469	};\
		8470	for(var p = zero_y ; p > 0; p = p - y2step){\
		8471	ctx.moveTo(zero_x-0.5*tics_length,p);\
		8472	ctx.lineTo(zero_x+0.5*tics_length,p);\
		8473	};\
		8474	ctx.stroke();\
		8475	ctx.closePath();\
7988	schaersvoo	8476	ctx.restore();\
		8477	};\
11891	schaersvoo	8478	if( use_axis_numbering != -1 ){\
7988	schaersvoo	8479	ctx.save();\
		8480	ctx.fillColor = axis_color;\
8110	schaersvoo	8481	ctx.strokeStyle = axis_color;\
		8482	ctx.lineWidth = 2*line_width;\
7988	schaersvoo	8483	ctx.font = font_family;\
		8484	var shift = zero_y+2*font_size;var flip=0;var skip=0;var corr;var cnt;var disp_cnt;var prec;\
11891	schaersvoo	8485	if( x_strings[use_axis_numbering] != null ){\
		8486	var str = x_strings[use_axis_numbering];\
		8487	var len = str.length;if((len/2+0.5)%%2 == 0){ alert(\"xaxis number unpaired: text missing ! \");return;};\
8110	schaersvoo	8488	ctx.beginPath();\
11891	schaersvoo	8489	if( x_strings_up[use_axis_numbering] == null){\
9341	schaersvoo	8490	for(var p = 0 ; p < len ; p = p+2){\
11891	schaersvoo	8491	var x_nums = x2px(eval(str[p]));\
		8492	var x_text = str[p+1];\
9341	schaersvoo	8493	corr = ctx.measureText(x_text).width;\
		8494	skip = 1.2*corr/xstep;\
		8495	if( zero_y+2font_size > ysize ){shift = ysize - 2font_size;};\
		8496	if( skip > 1 ){if(flip == 0 ){flip = 1; shift = shift + font_size;}else{flip = 0; shift = shift - font_size;}};\
		8497	ctx.fillText(x_text,parseInt(x_nums-0.5*corr),shift);\
		8498	ctx.moveTo(x_nums,zero_y - tics_length);\
		8499	ctx.lineTo(x_nums,zero_y + tics_length);\
		8500	};\
		8501	}\
		8502	else\
		8503	{\
		8504	for(var p = 0 ; p < len ; p = p+2){\
11891	schaersvoo	8505	var x_nums = x2px(eval(str[p]));\
		8506	var x_text = str[p+1];\
9341	schaersvoo	8507	corr = 2 + tics_length + zero_y + ctx.measureText(x_text).width;\
		8508	if( corr > ysize ){corr = ysize;};\
		8509	ctx.save();\
9346	schaersvoo	8510	ctx.translate(x_nums+0.25*font_size, corr);\
9341	schaersvoo	8511	ctx.rotate(-1.5708);\
		8512	ctx.fillText(x_text,0,0);\
		8513	ctx.restore();\
		8514	ctx.moveTo(x_nums,zero_y - tics_length);\
		8515	ctx.lineTo(x_nums,zero_y + tics_length);\
		8516	};\
7988	schaersvoo	8517	};\
8110	schaersvoo	8518	ctx.closePath();\
7988	schaersvoo	8519	}\
		8520	else\
		8521	{\
		8522	skip = 1;cnt = px2x(zero_x);\
		8523	prec = Math.log(precision)/(Math.log(10));\
		8524	var y_basis;if(f_y == 1){ y_basis = ysize }else{ y_basis = zero_y + 1.4*font_size;};\
		8525	for( var p = zero_x ; p < xsize ; p = p+xstep){\
		8526	if(skip == 0 ){\
7990	schaersvoo	8527	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	8528	corr = ctx.measureText(disp_cnt).width;\
		8529	skip = parseInt(1.2*corr/xstep);\
		8530	ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
7614	schaersvoo	8531	}\
7988	schaersvoo	8532	else\
		8533	{\
		8534	skip--;\
7614	schaersvoo	8535	};\
7988	schaersvoo	8536	cnt = cnt + xmajor;\
7614	schaersvoo	8537	};\
7988	schaersvoo	8538	cnt = px2x(zero_x);skip = 1;\
		8539	for( var p = zero_x ; p > 0 ; p = p-xstep){\
		8540	if(skip == 0 ){\
7990	schaersvoo	8541	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	8542	corr = ctx.measureText(disp_cnt).width;\
		8543	skip = parseInt(1.2*corr/xstep);\
		8544	ctx.fillText(disp_cnt,p-0.5*corr,y_basis);\
		8545	}\
		8546	else\
		8547	{\
		8548	skip--;\
7614	schaersvoo	8549	};\
7988	schaersvoo	8550	cnt = cnt - xmajor;\
7614	schaersvoo	8551	};\
		8552	};\
7988	schaersvoo	8553	if( y_strings != null ){\
		8554	var len = y_strings.length;if((len/2+0.5)%%2 == 0){ alert(\"yaxis number unpaired: text missing ! \");return;};\
8110	schaersvoo	8555	ctx.beginPath();\
7988	schaersvoo	8556	for(var p = 0 ; p < len ; p = p+2){\
		8557	var y_nums = y2px(eval(y_strings[p]));\
		8558	var y_text = y_strings[p+1];\
		8559	corr = 2 + tics_length + ctx.measureText(y_text).width;\
		8560	if( corr > zero_x){corr = parseInt(zero_x+2); }\
8110	schaersvoo	8561	ctx.fillText(y_text,zero_x - corr,y_nums + 0.5*font_size);\
		8562	ctx.moveTo(zero_x - tics_length,y_nums);\
		8563	ctx.lineTo(zero_x + tics_length,y_nums);\
7614	schaersvoo	8564	};\
8110	schaersvoo	8565	ctx.closePath();\
7988	schaersvoo	8566	}\
		8567	else\
		8568	{\
7991	schaersvoo	8569	if(f_x == 1){ corr = 1.5*tics_length; }\
7988	schaersvoo	8570	cnt = px2y(zero_y);skip = 1;\
		8571	for( var p = zero_y ; p < ysize ; p = p+ystep){\
		8572	if(skip == 0 ){\
		8573	skip = parseInt(1.4*font_size/ystep);\
7990	schaersvoo	8574	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	8575	if(f_x == -1 ){ corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
		8576	ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
		8577	}\
		8578	else\
		8579	{\
		8580	skip--;\
		8581	};\
		8582	cnt = cnt - ymajor;\
7614	schaersvoo	8583	};\
7988	schaersvoo	8584	corr = 0;cnt = px2y(zero_y);skip = 1;\
7991	schaersvoo	8585	if(f_x == 1){ corr = 1.5*tics_length; }\
7988	schaersvoo	8586	for( var p = zero_y ; p > 0 ; p = p-ystep){\
		8587	if(skip == 0 ){\
		8588	skip = parseInt(1.4*font_size/ystep);\
7990	schaersvoo	8589	disp_cnt = cnt.toFixed(prec);\
7988	schaersvoo	8590	if(f_x == -1 ){corr = parseInt(zero_x - (2 + tics_length + ctx.measureText(disp_cnt).width));};\
		8591	ctx.fillText(disp_cnt,parseInt(corr),parseInt(p+(0.4*font_size)));\
		8592	}\
		8593	else\
		8594	{\
		8595	skip--;\
		8596	};\
		8597	cnt = cnt + ymajor;\
7614	schaersvoo	8598	};\
		8599	};\
7988	schaersvoo	8600	ctx.stroke();\
7614	schaersvoo	8601	ctx.restore();\
		8602	};\
11088	schaersvoo	8603	if( typeof(legend0) !== 'undefined' ){\
7988	schaersvoo	8604	ctx.save();\
7614	schaersvoo	8605	ctx.globalAlpha = 1.0;\
		8606	ctx.font = \"bold \"+font_size+\"px Ariel\";\
		8607	var y_offset = 2*font_size;\
		8608	var txt;var txt_size;\
		8609	var x_offset = xsize - 2*font_size;\
7956	schaersvoo	8610	var l_length = legend0.length;\
11088	schaersvoo	8611	if( typeof(legendcolors0) !== 'undefined' ){\
7614	schaersvoo	8612	for(var p = 0 ; p < l_length ; p++){\
7956	schaersvoo	8613	barcolor[p] = legendcolors0[p];\
7614	schaersvoo	8614	};\
7988	schaersvoo	8615	}\
		8616	else\
		8617	{\
7614	schaersvoo	8618	if( barcolor.length == 0 ){\
		8619	for(var p = 0 ; p < l_length ; p++){\
		8620	barcolor[p] = stroke_color;\
		8621	};\
		8622	};\
		8623	};\
		8624	for(var p = 0; p < l_length; p++){\
		8625	ctx.fillStyle = barcolor[p];\
7956	schaersvoo	8626	txt = legend0[p];\
7614	schaersvoo	8627	txt_size = ctx.measureText(txt).width;\
7956	schaersvoo	8628	ctx.fillText(legend0[p],x_offset - txt_size, y_offset);\
7614	schaersvoo	8629	y_offset = parseInt(y_offset + 1.5*font_size);\
		8630	};\
7988	schaersvoo	8631	ctx.restore();\
7614	schaersvoo	8632	};\
11088	schaersvoo	8633	if( typeof(barchart_0) !== 'undefined' ){\
7991	schaersvoo	8634	ctx.save();\
		8635	var num_barcharts = 0;\
		8636	var bar_name = eval('barchart_0');\
11088	schaersvoo	8637	while( typeof(bar_name) !== 'undefined' ){\
7991	schaersvoo	8638	try{ bar_name = eval('barchart_'+num_barcharts);num_barcharts++;}catch(e){break;};\
		8639	};\
9346	schaersvoo	8640	var bar_width = parseInt(0.8*x2step/(num_barcharts));\
7991	schaersvoo	8641	for(var i=0 ; i< num_barcharts ; i++){\
		8642	bar_name = eval('barchart_'+i);\
		8643	var bar_x = new Array();\
		8644	var bar_y = new Array();\
		8645	var lb = bar_name.length;\
		8646	var idx = 0;\
		8647	var dx = parseInt(0.5ibar_width);\
		8648	for( var p = 0 ; p < lb ; p = p + 3 ){\
		8649	bar_x[idx] = x2px(bar_name[p]);\
		8650	bar_y[idx] = y2px(bar_name[p+1]);\
		8651	barcolor[idx] = bar_name[p+2];\
		8652	idx++;\
		8653	};\
		8654	ctx.globalAlpha = fill_opacity;\
		8655	for( var p = 0; p < idx ; p++ ){\
11739	schaersvoo	8656	ctx.beginPath();\
7991	schaersvoo	8657	ctx.strokeStyle = barcolor[p];\
		8658	ctx.fillStyle = barcolor[p];\
9346	schaersvoo	8659	ctx.rect(bar_x[p]-0.4*x2step+dx,bar_y[p],bar_width,zero_y - bar_y[p]);\
11739	schaersvoo	8660	ctx.fill();\
		8661	ctx.stroke();\
		8662	ctx.closePath();\
7991	schaersvoo	8663	};\
		8664	};\
		8665	ctx.restore();\
		8666	};\
11088	schaersvoo	8667	if( typeof(linegraph_0) !== 'undefined' ){\
7996	schaersvoo	8668	ctx.save();\
		8669	ctx.globalAlpha = 1.0;\
		8670	var i = 0;\
		8671	var line_name = eval('linegraph_'+i);\
11088	schaersvoo	8672	while ( typeof(line_name) !== 'undefined' ){\
7996	schaersvoo	8673	ctx.strokeStyle = 'rgba('+line_name[0]+','+stroke_opacity+')';\
		8674	ctx.lineWidth = parseInt(line_name[1]);\
		8675	if(line_name[2] == \"1\"){\
		8676	var d1 = parseInt(line_name[3]);\
		8677	var d2 = parseInt(line_name[4]);\
		8678	if(ctx.setLineDash){ ctx.setLineDash([d1,d2]); } else { ctx.mozDash = [d1,d2];};\
		8679	}\
		8680	else\
		8681	{\
		8682	if(ctx.setLineDash){ctx.setLineDash = null;}\
		8683	if(ctx.mozDash){ctx.mozDash = null;}\
		8684	};\
		8685	var data_x = new Array();\
		8686	var data_y = new Array();\
		8687	var lb = line_name.length;\
		8688	var idx = 0;\
		8689	for( var p = 5 ; p < lb ; p = p + 2 ){\
		8690	data_x[idx] = x2px(line_name[p]);\
		8691	data_y[idx] = y2px(line_name[p+1]);\
		8692	idx++;\
		8693	};\
		8694	for( var p = 0; p < idx ; p++){\
		8695	ctx.beginPath();\
		8696	ctx.moveTo(data_x[p],data_y[p]);\
		8697	ctx.lineTo(data_x[p+1],data_y[p+1]);\
		8698	ctx.stroke();\
		8699	ctx.closePath();\
		8700	};\
		8701	i++;\
		8702	try{ line_name = eval('linegraph_'+i); }catch(e){ break; }\
		8703	};\
		8704	ctx.restore();\
		8705	};\
7614	schaersvoo	8706	return;\
7989	schaersvoo	8707	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	8708	break;
8224	bpr	8709
7614	schaersvoo	8710	case DRAW_PIECHART:
13970	obado	8711	fprintf(js_include_file,"\n/* draw piecharts */\n\
11875	schaersvoo	8712	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
12538	schaersvoo	8713	function draw_piechart(canvas_type,x_center,y_center,radius, data_color_list,fill_opacity,legend_cnt,font_family,use_filled,use_offset){\
7614	schaersvoo	8714	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		8715	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		8716	}\
		8717	else\
		8718	{\
		8719	obj = create_canvas%d(canvas_type,xsize,ysize);\
		8720	};\
12538	schaersvoo	8721	var center_text = use_offset \|\| 0;\
7614	schaersvoo	8722	var ld = data_color_list.length;\
		8723	var sum = 0;\
		8724	var idx = 0;\
7956	schaersvoo	8725	var font_size = parseInt(font_family.replace(/[^0-9\\.]+/g, \"\"));\
7614	schaersvoo	8726	var colors = new Array();\
		8727	var data = new Array();\
		8728	for(var p = 0;p < ld; p = p + 2){\
		8729	data[idx] = parseFloat(data_color_list[p]);\
		8730	sum = sum + data[idx];\
		8731	colors[idx] = data_color_list[p+1];\
		8732	idx++;\
		8733	};\
11875	schaersvoo	8734	if( use_filled > 1 ){\
		8735	var i = 2;\
		8736	for(var p = 0 ; p < idx ; p++){\
		8737	if(i > 5 ){ i = 2; };\
		8738	var pat = create_Pattern(0,0,i,colors[p]); all_fill_patterns[p] = pat;i++;\
		8739	};\
		8740	};\
7614	schaersvoo	8741	var ctx = obj.getContext(\"2d\");\
		8742	ctx.save();\
		8743	var angle;\
		8744	var angle_end = 0;\
		8745	var offset = Math.PI / 2;\
		8746	ctx.globalAlpha = fill_opacity;\
12538	schaersvoo	8747	var angles = [];\
7614	schaersvoo	8748	for(var p=0; p < idx; p++){\
		8749	ctx.beginPath();\
		8750	ctx.moveTo(x_center,y_center);\
		8751	angle = Math.PI * (2 * data[p] / sum);\
		8752	ctx.arc(x_center,y_center, radius, angle_end - offset, angle_end + angle - offset, false);\
		8753	ctx.lineTo(x_center, y_center);\
11875	schaersvoo	8754	if( use_filled > 1 ){ ctx.fillStyle = all_fill_patterns[p]; }else{ ctx.fillStyle = colors[p];};\
7614	schaersvoo	8755	ctx.fill();\
		8756	ctx.closePath();\
12538	schaersvoo	8757	angles.push(angle_end + angle - offset);\
7614	schaersvoo	8758	angle_end = angle_end + angle;\
		8759	};\
11088	schaersvoo	8760	if(typeof(legend0) !== 'undefined'){\
7956	schaersvoo	8761	var legenda = eval(\"legend\"+legend_cnt);\
7614	schaersvoo	8762	ctx.globalAlpha = 1.0;\
7956	schaersvoo	8763	ctx.font = font_family;\
12538	schaersvoo	8764	var y_offset = font_size;\
7614	schaersvoo	8765	var x_offset = 0;\
		8766	var txt;var txt_size;\
		8767	for(var p = 0; p < idx; p++){\
		8768	ctx.fillStyle = colors[p];\
7956	schaersvoo	8769	txt = legenda[p];\
12538	schaersvoo	8770	txt_size = ctx.measureText(txt).width + 2;\
		8771	if(center_text == 4){\
		8772	ctx.save();\
		8773	ctx.translate(x_center, y_center);\
		8774	ctx.rotate(angles[p]);\
		8775	ctx.fillText(txt,radius-txt_size,0);\
		8776	ctx.restore();\
		8777	}\
		8778	else\
		8779	{\
		8780	if( x_center + radius + txt_size > xsize ){ x_offset = x_center + radius + txt_size - xsize;} else { x_offset = 0; };\
		8781	ctx.fillText(txt,x_center + radius - x_offset, y_center - radius + y_offset);\
		8782	y_offset = parseInt(y_offset + 1.5*font_size);\
		8783	};\
7614	schaersvoo	8784	};\
		8785	};\
		8786	ctx.restore();\
7956	schaersvoo	8787	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	8788	break;
9433	schaersvoo	8789	case DRAW_JSBOXPLOT:
13970	obado	8790	fprintf(js_include_file,"\n/* draw jsboxplots */\n\
11874	schaersvoo	8791	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
9433	schaersvoo	8792	function statistics(data){\
		8793	var len = data.length;\
		8794	var min = 10000000;\
		8795	var max = -10000000;\
		8796	var sum = 0;var d;\
		8797	for(var i=0;i<len;i++){\
		8798	d = data[i];\
		8799	if(d < min){min = d;}else{if(d > max){max = d;};};\
		8800	sum+= parseFloat(data[i]);\
		8801	};\
		8802	var mean = parseFloat(sum/len);\
		8803	var variance = 0;\
		8804	for(var i=0;i<len;i++){\
		8805	d = data[i];\
		8806	variance += (d - mean)*(d - mean);\
		8807	};\
		8808	variance = parseFloat(variance / len);\
		8809	var std = Math.sqrt(variance);\
		8810	data.sort(function(a,b){return a - b;});\
		8811	var median;var Q1;var Q3;\
		8812	var half = Math.floor(0.5*len);\
		8813	var q1 = Math.floor(0.25*len);\
		8814	var q3 = Math.floor(0.75*len);\
		8815	var half = Math.floor(0.5*len);\
		8816	if(len %%2 == 1){\
		8817	median = data[half];\
		8818	Q1 = data[q1];\
		8819	Q3 = data[q3];\
		8820	}\
		8821	else\
		8822	{\
		8823	median = (data[half - 1] + data[half] )/2;\
		8824	Q1 = (data[q1 - 1] + data[q1] )/2;\
		8825	Q3 = (data[q3 - 1] + data[q3] )/2;\
		8826	};\
		8827	return [min,Q1,median,Q3,max];\
		8828	};");
		8829	break;
		8830	case DRAW_BOXPLOT:
13970	obado	8831	fprintf(js_include_file,"\n/* draw boxplots */\n\
11874	schaersvoo	8832	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
9465	schaersvoo	8833	draw_boxplot = function(canvas_type,xy,hw,cxy,data,line_width,stroke_color,stroke_opacity,fill_color,fill_opacity,use_filled,use_dashed,dashtype0,dashtype1){\
14044	schaersvoo	8834	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){obj = document.getElementById(\"wims_canvas%d\"+canvas_type);}else{obj = create_canvas%d(canvas_type,xsize,ysize);};\
9433	schaersvoo	8835	var ctx = obj.getContext(\"2d\");\
		8836	ctx.clearRect(0,0,xsize,ysize);\
		8837	ctx.save();\
		8838	ctx.lineWidth = line_width;\
11088	schaersvoo	8839	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
9433	schaersvoo	8840	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
11875	schaersvoo	8841	var colors = new Array(2);\
		8842	colors[0] = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
		8843	colors[1] = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		8844	if( use_filled > 1 ){\
		8845	var pat = create_Pattern(0,0,3,colors[0]);\
		8846	all_fill_patterns[0] = pat;\
		8847	pat = create_Pattern(0,0,4,colors[1]);\
		8848	all_fill_patterns[1] = pat;\
		8849	};\
9433	schaersvoo	8850	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
		8851	var hh = 0.25*hw;\
9465	schaersvoo	8852	switch(boxplot_source){\
11088	schaersvoo	8853	case 1: if( typeof(jsboxplot_data) === 'undefined'){return;};data = statistics(jsboxplot_data);break;\
		8854	case 2: if( typeof(student_boxplot_data) === 'undefined'){return;};data = statistics(student_boxplot_data);break;\
		8855	case 3: if( typeof(student_boxplot) === 'undefined'){return;};data = student_boxplot;break;\
9465	schaersvoo	8856	default: break;\
9433	schaersvoo	8857	};\
		8858	var min,Q1,median,Q3,max;\
		8859	if(xy == 1 ){\
		8860	min=x2px(data[0]);Q1=x2px(data[1]);median=x2px(data[2]);Q3=x2px(data[3]);max=x2px(data[4]);\
		8861	hh = Math.abs(y2px(hh) - y2px(ystart));\
		8862	hw = Math.abs(y2px(hw) - y2px(ystart));\
		8863	cxy = y2px(cxy);\
9465	schaersvoo	8864	ctx.beginPath();\
9433	schaersvoo	8865	ctx.moveTo(min,cxy);\
		8866	ctx.lineTo(Q1,cxy);\
		8867	ctx.moveTo(Q3,cxy);\
		8868	ctx.lineTo(max,cxy);\
		8869	ctx.moveTo(min,cxy+hh);\
		8870	ctx.lineTo(min,cxy-hh);\
		8871	ctx.moveTo(max,cxy+hh);\
		8872	ctx.lineTo(max,cxy-hh);\
9465	schaersvoo	8873	ctx.closePath();\
		8874	ctx.stroke();\
		8875	ctx.beginPath();\
9433	schaersvoo	8876	ctx.rect(Q1,cxy-2*hh,median-Q1,hw);\
9465	schaersvoo	8877	ctx.closePath();\
11839	schaersvoo	8878	if( use_filled != 0 ){\
12024	schaersvoo	8879	if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
9465	schaersvoo	8880	ctx.fill();\
		8881	};\
		8882	ctx.stroke();\
		8883	ctx.beginPath();\
9433	schaersvoo	8884	ctx.rect(median,cxy-2*hh,Q3-median,hw);\
9465	schaersvoo	8885	ctx.closePath();\
11839	schaersvoo	8886	if( use_filled != 0 ){\
12075	schaersvoo	8887	if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
9465	schaersvoo	8888	ctx.fill();\
		8889	};\
		8890	ctx.stroke();\
9433	schaersvoo	8891	}else{\
		8892	min=y2px(data[0]);Q1=y2px(data[1]);median=y2px(data[2]);Q3=y2px(data[3]);max=y2px(data[4]);\
		8893	hh = Math.abs(x2px(hh) - x2px(xstart));\
		8894	hw = Math.abs(x2px(hw) - x2px(xstart));\
		8895	cxy = x2px(cxy);\
9465	schaersvoo	8896	ctx.beginPath();\
9433	schaersvoo	8897	ctx.moveTo(cxy,min);\
		8898	ctx.lineTo(cxy,Q1);\
		8899	ctx.moveTo(cxy,Q3);\
		8900	ctx.lineTo(cxy,max);\
		8901	ctx.moveTo(cxy + hh,min);\
		8902	ctx.lineTo(cxy - hh,min);\
		8903	ctx.moveTo(cxy + hh,max);\
		8904	ctx.lineTo(cxy - hh,max);\
9465	schaersvoo	8905	ctx.closePath;\
		8906	ctx.stroke();\
		8907	ctx.beginPath();\
9433	schaersvoo	8908	ctx.rect(cxy - 2*hh,Q1,hw,median - Q1);\
9465	schaersvoo	8909	ctx.closePath();\
11839	schaersvoo	8910	if( use_filled != 0 ){\
12075	schaersvoo	8911	if( use_filled == 1 ) {ctx.fillStyle = colors[0]; }else{ ctx.fillStyle = all_fill_patterns[0] };\
9465	schaersvoo	8912	ctx.fill();\
		8913	};\
		8914	ctx.stroke();\
		8915	ctx.beginPath();\
9433	schaersvoo	8916	ctx.rect(cxy - 2*hh,median,hw,Q3 - median);\
9465	schaersvoo	8917	ctx.closePath();\
11839	schaersvoo	8918	if( use_filled != 0 ){\
12075	schaersvoo	8919	if( use_filled == 1 ) {ctx.fillStyle = colors[1]; }else{ ctx.fillStyle = all_fill_patterns[1] };\
9465	schaersvoo	8920	ctx.fill();\
		8921	};\
		8922	ctx.stroke();\
9433	schaersvoo	8923	};\
		8924	ctx.restore();};",canvas_root_id,canvas_root_id,canvas_root_id);
		8925	break;
7614	schaersvoo	8926	case DRAW_ARCS:
13970	obado	8927	fprintf(js_include_file,"\n/* draw arcs */\n\
11874	schaersvoo	8928	if( typeof(all_fill_patterns) != 'object' ){ var all_fill_patterns = []; };\
8105	schaersvoo	8929	var draw_arc = function(ctx,xc,yc,r,start,end,line_width,stroke_color,stroke_opacity,use_filled,fill_color,fill_opacity,use_dashed,dashtype0,dashtype1,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	8930	ctx.save();\
		8931	if( use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{if(ctx.mozDash){ ctx.mozDash = [dashtype0,dashtype1];};};};\
8071	schaersvoo	8932	if( use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);};\
7614	schaersvoo	8933	if( use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);};\
		8934	if(end < start){var tmp = end;end = start;start=tmp;};\
8071	schaersvoo	8935	start = 360 - start;\
		8936	end = 360 - end;\
7614	schaersvoo	8937	ctx.lineWidth = line_width;\
11088	schaersvoo	8938	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	8939	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
11874	schaersvoo	8940	var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
11875	schaersvoo	8941	if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
8071	schaersvoo	8942	ctx.beginPath();\
		8943	ctx.moveTo(xc,yc);\
		8944	ctx.arc(xc, yc, r, start(Math.PI / 180), end(Math.PI / 180),true);\
		8945	ctx.lineTo(xc,yc);\
		8946	ctx.closePath();\
11875	schaersvoo	8947	if( use_filled != 0 ){ctx.fill();};\
8071	schaersvoo	8948	ctx.stroke();\
7614	schaersvoo	8949	ctx.restore();\
8071	schaersvoo	8950	};");
8224	bpr	8951
7614	schaersvoo	8952	break;
7983	schaersvoo	8953	case DRAW_CENTERSTRING:
13970	obado	8954	fprintf(js_include_file,"\n/* draw centerstring */\n\
8105	schaersvoo	8955	var draw_centerstring = function(canvas_type,y,font_family,stroke_color,stroke_opacity,text){\
7983	schaersvoo	8956	var obj;\
		8957	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		8958	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		8959	}\
		8960	else\
		8961	{\
		8962	obj = create_canvas%d(canvas_type,xsize,ysize);\
		8963	};\
		8964	var ctx = obj.getContext(\"2d\");\
		8965	ctx.save();\
9481	schaersvoo	8966	ctx.clearRect(0,0,xsize,ysize);\
7983	schaersvoo	8967	ctx.font = font_family;\
		8968	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		8969	var stringwidth = ctx.measureText(text).width;\
		8970	var x = parseInt((xsize - stringwidth)/2);if( x < 0 ){x = 0;};\
		8971	ctx.fillText(text,x,y2px(y));\
9481	schaersvoo	8972	ctx.restore();\
7983	schaersvoo	8973	return;\
		8974	};",canvas_root_id,canvas_root_id,canvas_root_id);
		8975	break;
7614	schaersvoo	8976	case DRAW_TEXTS:
13970	obado	8977	fprintf(js_include_file,"\n/* draw text */\n\
11811	schaersvoo	8978	var draw_text = function(canvas_type,x,y,font_size,font_family,stroke_color,stroke_opacity,angle2,text,use_rotate,angle,use_affine,affine_matrix,use_offset){\
12000	schaersvoo	8979	var obj;\
		8980	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		8981	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		8982	}\
		8983	else\
		8984	{\
		8985	obj = create_canvas%d(canvas_type,xsize,ysize);\
		8986	};\
		8987	var ctx = obj.getContext(\"2d\");\
		8988	if( font_family != 'null' ){\
		8989	ctx.font = font_family;\
		8990	}\
		8991	else\
		8992	{\
		8993	ctx.font = font_size+'px Ariel';\
		8994	};\
		8995	if( use_offset == 3 ){if(angle2 < 0 ){ y = y + 0.8font_size; x = x + (Math.cos(angle2))font_size; }else{y = y - 0.8font_size; x = x + (Math.sin(angle2))font_size;};};\
		8996	if(angle2 == 0 && angle != 0){\
		8997	ctx.save();\
		8998	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
		8999	if(use_rotate == 1 ){\
		9000	ctx.rotate(angle*Math.PI/180);};\
		9001	ctx.restore();\
		9002	};\
		9003	ctx.fillStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		9004	if(angle2 != 0){\
		9005	ctx.save();\
		9006	ctx.translate(x,y);\
		9007	ctx.rotate((360-angle2)*(Math.PI / 180));\
		9008	ctx.fillText(text,0,0);\
		9009	ctx.restore();\
		9010	}\
		9011	else\
		9012	{\
		9013	ctx.fillText(text,x,y);\
		9014	};\
7614	schaersvoo	9015	return;\
12000	schaersvoo	9016	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	9017	break;
		9018	case DRAW_CURVE:
13970	obado	9019	fprintf(js_include_file,"\n/* draw curve */\n\
8105	schaersvoo	9020	var draw_curve = function(canvas_type,type,x_points,y_points,line_width,stroke_color,stroke_opacity,use_dashed,dashtype0,use_rotate,angle,use_affine,affine_matrix){\
7614	schaersvoo	9021	var obj;\
		9022	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		9023	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		9024	}\
		9025	else\
		9026	{\
		9027	obj = create_canvas%d(canvas_type,xsize,ysize);\
		9028	};\
		9029	var ctx = obj.getContext(\"2d\");\
		9030	ctx.save();\
8071	schaersvoo	9031	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	9032	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
		9033	ctx.beginPath();ctx.lineWidth = line_width;\
11088	schaersvoo	9034	if(line_width%%2 == 1 && typeof(zoom_x_increment) === 'undefined'){ctx.translate(0.5,0.5)};\
7614	schaersvoo	9035	if(use_dashed == 1){if(ctx.setLineDash){ctx.setLineDash([dashtype0,dashtype1]);}else{ctx.mozDash = [dashtype0,dashtype1];};};\
		9036	ctx.strokeStyle = \"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		9037	ctx.moveTo(x2px(x_points[0]),y2px(y_points[0]));\
		9038	for(var p = 1 ; p < x_points.length ; p++){\
		9039	if( y2px(y_points[p]) > -5 && y2px(y_points[p]) < ysize+5 ){\
		9040	ctx.lineTo(x2px(x_points[p]),y2px(y_points[p]));\
		9041	}\
		9042	else\
		9043	{\
		9044	ctx.stroke();\
		9045	ctx.beginPath();\
		9046	p++;\
		9047	ctx.moveTo(x2px(x_points[p]),y2px(y_points[p]));\
		9048	};\
		9049	};\
		9050	ctx.stroke();\
		9051	ctx.restore();\
7653	schaersvoo	9052	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	9053	break;
8224	bpr	9054
7614	schaersvoo	9055	case DRAW_INPUTS:
13970	obado	9056	fprintf(js_include_file,"\n/* draw input fields */\n\
11803	schaersvoo	9057	var draw_inputs = function(root_id,input_cnt,x,y,size,readonly,style,value,use_offset){\
7614	schaersvoo	9058	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		9059	var input = document.createElement(\"input\");\
		9060	input.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		9061	input.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		9062	input.setAttribute(\"size\",size);\
		9063	input.setAttribute(\"value\",value);\
7877	schaersvoo	9064	if( readonly == 0 \|\| wims_status == \"done\" ){ input.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){input.setAttribute(\"value\",\"\");};};\
11803	schaersvoo	9065	canvas_div.appendChild(input);\
		9066	if(use_offset != 0 ){ center_input('canvas_input'+input_cnt,x,y,style);};\
		9067	};\
		9068	function center_input(id,x,y,style){\
		9069	var inp = document.getElementById(id);\
		9070	var pos = inp.getBoundingClientRect();\
		9071	var center_x = parseInt(x - 0.5*(pos.width));\
		9072	var center_y = parseInt(y - 0.5*(pos.height));\
		9073	try{ inp.setAttribute(\"style\",\"position:absolute;left:\"+center_x+\"px;top:\"+center_y+\"px;\"+style );}\
		9074	catch(e){return;};\
		9075	};");
7614	schaersvoo	9076	break;
8224	bpr	9077
7614	schaersvoo	9078	case DRAW_TEXTAREAS:
13970	obado	9079	fprintf(js_include_file,"\n/* draw text area inputfields */\n\
8105	schaersvoo	9080	var draw_textareas = function(root_id,input_cnt,x,y,cols,rows,readonly,style,value){\
7614	schaersvoo	9081	var canvas_div = document.getElementById(\"canvas_div\"+root_id);\
		9082	var textarea = document.createElement(\"textarea\");\
		9083	textarea.setAttribute(\"id\",\"canvas_input\"+input_cnt);\
		9084	textarea.setAttribute(\"style\",\"position:absolute;left:\"+x+\"px;top:\"+y+\"px;\"+style);\
		9085	textarea.setAttribute(\"cols\",cols);\
		9086	textarea.setAttribute(\"rows\",rows);\
7877	schaersvoo	9087	textarea.value = value;\
		9088	if( readonly == 0 \|\| wims_status == \"done\" ){ textarea.setAttribute(\"readonly\",\"readonly\");if( wims_status == \"done\" ){textarea.value=\"\";};};\
7653	schaersvoo	9089	canvas_div.appendChild(textarea);};");
7614	schaersvoo	9090	break;
8224	bpr	9091
7614	schaersvoo	9092	case DRAW_PIXELS:
13970	obado	9093	fprintf(js_include_file,"\n/* draw pixel */\n\
8105	schaersvoo	9094	var draw_setpixel = function(x,y,color,opacity,pixelsize){\
11997	schaersvoo	9095	var idx = 2000+Math.ceil(1000*(Math.random()));\
		9096	var canvas = create_canvas%d(idx,xsize,ysize);\
7614	schaersvoo	9097	var d = 0.5*pixelsize;\
		9098	var ctx = canvas.getContext(\"2d\");\
9462	schaersvoo	9099	if(pixelsize%%2 == 1){ ctx.translate(0.5,0.5);};\
7614	schaersvoo	9100	ctx.fillStyle = \"rgba(\"+color+\",\"+opacity+\")\";\
		9101	ctx.clearRect(0,0,xsize,ysize);\
		9102	for(var p=0; p<x.length;p++){\
		9103	ctx.fillRect( x2px(x[p]) - d, y2px(y[p]) - d , pixelsize, pixelsize );\
		9104	};\
		9105	ctx.fill();ctx.stroke();\
		9106	};",canvas_root_id);
		9107	break;
		9108
		9109	case DRAW_CLOCK:
13970	obado	9110	fprintf(js_include_file,"\n/* begin command clock */\n\
7614	schaersvoo	9111	var clock_canvas = create_canvas%d(%d,xsize,ysize);\
		9112	var clock_ctx = clock_canvas.getContext(\"2d\");\
		9113	var clock = function(xc,yc,radius,H,M,S,type,interaction,h_color,m_color,s_color,bg_color,fg_color){\
8130	schaersvoo	9114	clock_ctx.clearRect(xc - radius,yc - radius,2radius,2radius);\
7614	schaersvoo	9115	clock_ctx.save();\
7997	schaersvoo	9116	clock_ctx.globalAlpha = clock_bg_opacity;\
7614	schaersvoo	9117	this.type = type \|\| 0;\
		9118	this.interaction = interaction \|\| 0;\
7862	schaersvoo	9119	this.H = H;\
		9120	this.M = M;\
		9121	this.S = S;\
7614	schaersvoo	9122	this.xc = xc \|\| xsize/2;\
		9123	this.yc = yc \|\| ysize/2;\
		9124	this.radius = radius \|\| xsize/4;\
		9125	var font_size = parseInt(0.2*this.radius);\
11991	schaersvoo	9126	this.H_color = h_color \|\| \"black\";\
		9127	this.M_color = m_color \|\| \"black\";\
		9128	this.S_color = s_color \|\| \"black\";\
		9129	this.fg_color = fg_color \|\| \"black\";\
7614	schaersvoo	9130	this.bg_color = bg_color \|\| \"white\";\
		9131	clock_ctx.translate(this.xc,this.yc);\
		9132	clock_ctx.beginPath();\
		9133	clock_ctx.arc(0,0,this.radius,0,2*Math.PI,false);\
		9134	clock_ctx.fillStyle = this.bg_color;\
		9135	clock_ctx.fill();\
		9136	clock_ctx.closePath();\
		9137	clock_ctx.beginPath();\
		9138	clock_ctx.font = font_size+\"px Arial\";\
		9139	clock_ctx.fillStyle = this.fg_color;\
		9140	clock_ctx.textAlign = \"center\";\
		9141	clock_ctx.textBaseline = 'middle';\
		9142	var angle;var x1,y1,x2,y2;\
		9143	var angle_cos;var angle_sin;\
7997	schaersvoo	9144	clock_ctx.globalAlpha = clock_fg_opacity;\
7614	schaersvoo	9145	switch(type){\
		9146	case 0:clock_ctx.beginPath();\
		9147	for(var p = 1; p <= 12 ; p++){\
		9148	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		9149	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		9150	x1 = 0.8angle_cos;y1 = 0.8angle_sin;x2 = angle_cos;y2 = angle_sin;\
		9151	clock_ctx.moveTo(x1,y1);\
		9152	clock_ctx.lineTo(x2,y2);\
		9153	};\
		9154	for(var p = 1; p <= 60 ; p++){\
		9155	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		9156	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		9157	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		9158	clock_ctx.moveTo(x1,y1);\
		9159	clock_ctx.lineTo(x2,y2);\
		9160	};\
		9161	clock_ctx.closePath();\
		9162	clock_ctx.stroke();\
		9163	break;\
		9164	case 1:\
		9165	for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 0.9this.radiusMath.cos(angle);y1 = 0.9this.radiusMath.sin(angle);clock_ctx.fillText(p, x1, y1);};break;\
7862	schaersvoo	9166	case 2:\
		9167	for(var p= 1; p <= 12 ; p++){ angle = (p - 3) * (Math.PI * 2) / 12;x1 = 0.8this.radiusMath.cos(angle);y1 = 0.8this.radiusMath.sin(angle);clock_ctx.fillText(p, x1, y1);};\
7614	schaersvoo	9168	clock_ctx.beginPath();\
		9169	for(var p = 1; p <= 12 ; p++){\
		9170	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 12));\
		9171	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 12));\
		9172	x1 = 0.9angle_cos;y1 = 0.9angle_sin;x2 = angle_cos;y2 = angle_sin;\
		9173	clock_ctx.moveTo(x1,y1);\
		9174	clock_ctx.lineTo(x2,y2);\
		9175	};\
		9176	for(var p = 1; p <= 60 ; p++){\
		9177	angle_cos = this.radius(Math.cos(p (Math.PI * 2) / 60));\
		9178	angle_sin = this.radius(Math.sin(p (Math.PI * 2) / 60));\
		9179	x1 = 0.95angle_cos;y1 = 0.95angle_sin;x2 = angle_cos;y2 = angle_sin;\
		9180	clock_ctx.moveTo(x1,y1);\
		9181	clock_ctx.lineTo(x2,y2);\
		9182	};\
		9183	clock_ctx.closePath();\
		9184	clock_ctx.stroke();\
		9185	break;\
		9186	};\
		9187	angle = (this.H - 3 + this.M/60 ) * 2 * Math.PI / 12;\
		9188	clock_ctx.rotate(angle);\
		9189	clock_ctx.beginPath();\
		9190	clock_ctx.moveTo(-3, -2);\
		9191	clock_ctx.lineTo(-3, 2);\
11026	bpr	9192	clock_ctx.lineTo(this.radius * 0.6, 1);\
		9193	clock_ctx.lineTo(this.radius * 0.6, -1);\
7614	schaersvoo	9194	clock_ctx.fillStyle = this.H_color;\
		9195	clock_ctx.fill();\
		9196	clock_ctx.rotate(-angle);\
		9197	angle = (this.M - 15 + this.S/60) * 2 * Math.PI / 60;\
		9198	clock_ctx.rotate(angle);\
		9199	clock_ctx.beginPath();\
		9200	clock_ctx.moveTo(-3, -2);\
		9201	clock_ctx.lineTo(-3, 2);\
		9202	clock_ctx.lineTo(this.radius * 0.8, 1);\
		9203	clock_ctx.lineTo(this.radius * 0.8, -1);\
		9204	clock_ctx.fillStyle = this.M_color;\
		9205	clock_ctx.fill();\
		9206	clock_ctx.rotate(-angle);\
		9207	angle = (this.S - 15) * 2 * Math.PI / 60;\
		9208	clock_ctx.rotate(angle);\
		9209	clock_ctx.beginPath();\
		9210	clock_ctx.moveTo(0,0);\
11026	bpr	9211	clock_ctx.lineTo(this.radius * 0.9, 1);\
		9212	clock_ctx.lineTo(this.radius * 0.9, -1);\
7614	schaersvoo	9213	clock_ctx.strokeStyle = this.S_color;\
		9214	clock_ctx.stroke();\
		9215	clock_ctx.restore();\
7653	schaersvoo	9216	};",canvas_root_id,CLOCK_CANVAS);
7614	schaersvoo	9217	break;
		9218
		9219	case DRAW_LATTICE:
13970	obado	9220	fprintf(js_include_file,"\n/* draw lattice */\n\
11991	schaersvoo	9221	var draw_lattice = function(canvas_type,line_width,x0,y0,dx1,dy1,dx2,dy2,n1,n2,fill_color,fill_opacity,stroke_color,stroke_opacity,use_rotate,angle,use_affine,affine_matrix,use_filled){\
7614	schaersvoo	9222	var obj;\
		9223	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		9224	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		9225	}\
		9226	else\
		9227	{\
		9228	obj = create_canvas%d(canvas_type,xsize,ysize);\
		9229	};\
		9230	var ctx = obj.getContext(\"2d\");\
		9231	ctx.save();\
8071	schaersvoo	9232	if(use_affine == 1 ){ctx.translate(affine_matrix[4],affine_matrix[5]);}\
7614	schaersvoo	9233	if(use_rotate == 1 ){ctx.rotate(angle*Math.PI/180);}\
11874	schaersvoo	9234	var color = \"rgba(\"+fill_color+\",\"+fill_opacity+\")\";\
11875	schaersvoo	9235	if(use_filled > 1 ){ if(! all_fill_patterns[use_filled] ){ var pat = create_Pattern(0,0,use_filled,color); all_fill_patterns[use_filled] = pat;};ctx.fillStyle = all_fill_patterns[use_filled]; } else { ctx.fillStyle = color;};\
7614	schaersvoo	9236	ctx.strokeStyle=\"rgba(\"+stroke_color+\",\"+stroke_opacity+\")\";\
		9237	var radius = line_width;\
		9238	var x = 0;\
		9239	var y = 0;\
		9240	var x_step_px = xsize/(xmax-xmin);\
		9241	var y_step_px = ysize/(ymax-ymin);\
		9242	var xv1 = dx1*x_step_px;\
		9243	var yv1 = dy1*y_step_px;\
		9244	var xv2 = dx2*x_step_px;\
		9245	var yv2 = dy2*y_step_px;\
		9246	for(var p = 0; p < n1 ;p++){\
		9247	x = p*xv1 + x0;\
		9248	y = p*yv1 + y0;\
		9249	for(var c = 0; c < n2 ; c++){\
		9250	ctx.beginPath();\
		9251	ctx.arc(x+cxv2,y+cyv2,radius,0,2*Math.PI,false);\
		9252	ctx.fill();\
		9253	ctx.stroke();\
		9254	ctx.closePath();\
		9255	};\
		9256	};\
		9257	ctx.restore();\
		9258	return;\
7653	schaersvoo	9259	};",canvas_root_id,canvas_root_id,canvas_root_id);
7614	schaersvoo	9260	break;
7735	schaersvoo	9261	case DRAW_XYLOGSCALE:
13970	obado	9262	fprintf(js_include_file,"\n/* draw xylogscale */\n\
8105	schaersvoo	9263	var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,precision){\
7956	schaersvoo	9264	var obj;\
		9265	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		9266	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		9267	}\
		9268	else\
		9269	{\
		9270	obj = create_canvas%d(canvas_type,xsize,ysize);\
		9271	};\
		9272	var ctx = obj.getContext(\"2d\");\
7735	schaersvoo	9273	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	9274	ctx.save();\
7739	schaersvoo	9275	var xmarge;var ymarge;var x_e;var y_e;var num;var corr;var xtxt;var ytxt;\
7956	schaersvoo	9276	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		9277	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		9278	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		9279	var y_max = Math.log(ymax)/Math.log(ylogbase);\
11972	schaersvoo	9280	if(use_axis_numbering != -1){\
7956	schaersvoo	9281	ctx.font = font_family;\
		9282	xmarge = ctx.measureText(ylogbase+'^'+y_max.toFixed(0)+' ').width;\
		9283	ymarge = parseInt(1.5*font_size);\
		9284	ctx.save();\
		9285	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		9286	ctx.rect(0,0,xmarge,ysize);\
		9287	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		9288	ctx.fill();\
		9289	ctx.restore();\
		9290	}else{xmarge = 0;ymarge = 0;};\
11088	schaersvoo	9291	if( typeof(xaxislabel) !== 'undefined' ){\
7956	schaersvoo	9292	ctx.save();\
		9293	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		9294	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		9295	corr = ctx.measureText(xaxislabel).width;\
		9296	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		9297	ctx.restore();\
		9298	};\
11088	schaersvoo	9299	if( typeof(yaxislabel) !== 'undefined' ){\
7956	schaersvoo	9300	ctx.save();\
		9301	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		9302	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		9303	corr = ctx.measureText(yaxislabel).width;\
		9304	ctx.translate(xmarge+font_size,corr+font_size);\
		9305	ctx.rotate(-0.5*Math.PI);\
		9306	ctx.fillText(yaxislabel,0,0);\
		9307	ctx.restore();\
		9308	};\
		9309	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		9310	ctx.lineWidth = line_width;\
		9311	for(var p = x_min; p <= x_max ; p++){\
		9312	num = Math.pow(xlogbase,p);\
		9313	for(var i = 1 ; i < xlogbase ; i++){\
		9314	x_e = x2px(i*num);\
7735	schaersvoo	9315	if( i == 1 ){\
7956	schaersvoo	9316	ctx.lineWidth = line_width;\
		9317	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
11972	schaersvoo	9318	if( use_axis_numbering != -1 && p > x_min){\
7956	schaersvoo	9319	xtxt = xlogbase+'^'+p.toFixed(0);\
		9320	corr = 0.5*(ctx.measureText(xtxt).width);\
		9321	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		9322	};\
7735	schaersvoo	9323	}else{\
7956	schaersvoo	9324	ctx.lineWidth = 0.2*line_width;\
		9325	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		9326	};\
7738	schaersvoo	9327	if( x_e >= xmarge ){\
7956	schaersvoo	9328	ctx.beginPath();\
		9329	ctx.moveTo(x_e,0);\
		9330	ctx.lineTo(x_e,ysize - ymarge);\
		9331	ctx.stroke();\
		9332	ctx.closePath();\
7738	schaersvoo	9333	};\
7956	schaersvoo	9334	};\
		9335	};\
		9336	for(var p = y_min; p <= y_max ; p++){\
		9337	num = Math.pow(ylogbase,p);\
		9338	for(var i = 1 ; i < ylogbase ; i++){\
		9339	y_e = y2px(i*num);\
		9340	if( i == 1 ){\
		9341	ctx.lineWidth = line_width;\
7735	schaersvoo	9342	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
11972	schaersvoo	9343	if( use_axis_numbering != -1 && p > y_min){\
7956	schaersvoo	9344	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
		9345	};\
		9346	}else{\
		9347	ctx.lineWidth = 0.2*line_width;\
		9348	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		9349	};\
		9350	ctx.beginPath();\
		9351	ctx.moveTo(xmarge,y_e);\
		9352	ctx.lineTo(xsize,y_e);\
		9353	ctx.stroke();\
		9354	ctx.closePath();\
		9355	};\
		9356	};\
7735	schaersvoo	9357	ctx.restore();\
		9358	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
		9359	break;
7614	schaersvoo	9360
7735	schaersvoo	9361	case DRAW_XLOGSCALE:
13970	obado	9362	fprintf(js_include_file,"\n/* draw xlogscale */\n\
8105	schaersvoo	9363	var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,ymajor,yminor,precision){\
7956	schaersvoo	9364	var obj;\
		9365	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		9366	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		9367	}\
		9368	else\
		9369	{\
		9370	obj = create_canvas%d(canvas_type,xsize,ysize);\
		9371	};\
		9372	var ctx = obj.getContext(\"2d\");\
7735	schaersvoo	9373	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	9374	ctx.save();\
		9375	ctx.lineWidth = line_width;\
7739	schaersvoo	9376	var prec = Math.log(precision)/Math.log(10);\
7735	schaersvoo	9377	var x_min = Math.log(xmin)/Math.log(xlogbase);\
		9378	var x_max = Math.log(xmax)/Math.log(xlogbase);\
		9379	var y_min = 0;var y_max = ysize;var x_e;var corr;\
7739	schaersvoo	9380	var xtxt;var ytxt;var num;var xmarge;var ymarge;\
11972	schaersvoo	9381	if(use_axis_numbering != -1){\
7956	schaersvoo	9382	ctx.font = font_family;\
		9383	xmarge = ctx.measureText(ymax.toFixed(prec)+' ').width;\
		9384	ymarge = parseInt(1.5*font_size);\
		9385	ctx.save();\
		9386	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		9387	ctx.rect(0,0,xmarge,ysize);\
		9388	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		9389	ctx.fill();\
		9390	ctx.restore();\
		9391	}else{xmarge = 0;ymarge = 0;};\
11088	schaersvoo	9392	if( typeof(xaxislabel) !== 'undefined' ){\
7956	schaersvoo	9393	ctx.save();\
		9394	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		9395	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		9396	corr = ctx.measureText(xaxislabel).width;\
		9397	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		9398	ctx.restore();\
		9399	};\
11088	schaersvoo	9400	if( typeof(yaxislabel) !== 'undefined' ){\
7956	schaersvoo	9401	ctx.save();\
		9402	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		9403	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		9404	corr = ctx.measureText(yaxislabel).width;\
		9405	ctx.translate(xmarge+font_size,corr+font_size);\
		9406	ctx.rotate(-0.5*Math.PI);\
		9407	ctx.fillText(yaxislabel,0,0);\
		9408	ctx.restore();\
		9409	};\
		9410	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		9411	ctx.lineWidth = line_width;\
		9412	for(var p = x_min; p <= x_max ; p++){\
		9413	num = Math.pow(xlogbase,p);\
		9414	for(var i = 1 ; i < xlogbase ; i++){\
		9415	x_e = x2px(i*num);\
7735	schaersvoo	9416	if( i == 1 ){\
7956	schaersvoo	9417	ctx.lineWidth = line_width;\
7739	schaersvoo	9418	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
11972	schaersvoo	9419	if( use_axis_numbering != -1 && p > x_min ){\
7735	schaersvoo	9420	xtxt = xlogbase+'^'+p.toFixed(0);\
		9421	corr = 0.5*(ctx.measureText(xtxt).width);\
		9422	ctx.fillText(xtxt,x_e - corr,ysize - 4);\
		9423	};\
		9424	}else{\
7956	schaersvoo	9425	ctx.lineWidth = 0.2*line_width;\
7735	schaersvoo	9426	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		9427	};\
7739	schaersvoo	9428	if( x_e >= xmarge ){\
7956	schaersvoo	9429	ctx.beginPath();\
		9430	ctx.moveTo(x_e,0);\
		9431	ctx.lineTo(x_e,ysize - ymarge);\
		9432	ctx.stroke();\
		9433	ctx.closePath();\
7739	schaersvoo	9434	};\
		9435	};\
7956	schaersvoo	9436	};\
7735	schaersvoo	9437	var stepy = Math.abs(y2px(ymajor) - y2px(0));\
		9438	var minor_step = stepy / yminor;\
7749	schaersvoo	9439	for(var y = 0 ; y < ysize - stepy ; y = y + stepy){\
7735	schaersvoo	9440	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	9441	ctx.lineWidth = line_width;\
		9442	ctx.beginPath();\
		9443	ctx.moveTo(xmarge,y);\
		9444	ctx.lineTo(xsize,y);\
		9445	ctx.stroke();\
		9446	ctx.closePath();\
11972	schaersvoo	9447	if( use_axis_numbering != -1){\
7735	schaersvoo	9448	ytxt = (px2y(y)).toFixed(prec);\
		9449	ctx.fillText( ytxt,0 ,y + 0.5*font_size );\
		9450	};\
		9451	for(var dy = 1 ; dy < yminor ; dy++){\
		9452	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
7956	schaersvoo	9453	ctx.lineWidth = 0.2*line_width;\
		9454	ctx.beginPath();\
7739	schaersvoo	9455	ctx.moveTo(xmarge,y+dy*minor_step);\
7956	schaersvoo	9456	ctx.lineTo(xsize,y+dy*minor_step);\
		9457	ctx.stroke();\
		9458	ctx.closePath();\
7735	schaersvoo	9459	};\
		9460	};\
7956	schaersvoo	9461	ctx.restore();\
		9462	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7735	schaersvoo	9463	break;
7729	schaersvoo	9464	case DRAW_YLOGSCALE:
13970	obado	9465	fprintf(js_include_file,"\n/* draw ylogscale */\n\
8105	schaersvoo	9466	var draw_grid%d = function(canvas_type,line_width,major_color,minor_color,major_opacity,minor_opacity,font_size,font_family,font_color,use_axis_numbering,xmajor,xminor,precision){\
7956	schaersvoo	9467	var obj;\
		9468	if( document.getElementById(\"wims_canvas%d\"+canvas_type) ){\
		9469	obj = document.getElementById(\"wims_canvas%d\"+canvas_type);\
		9470	}\
		9471	else\
		9472	{\
		9473	obj = create_canvas%d(canvas_type,xsize,ysize);\
		9474	};\
		9475	var ctx = obj.getContext(\"2d\");\
7729	schaersvoo	9476	ctx.clearRect(0,0,xsize,ysize);\
7956	schaersvoo	9477	ctx.save();\
		9478	ctx.lineWidth = line_width;\
7735	schaersvoo	9479	var y_min = Math.log(ymin)/Math.log(ylogbase);\
		9480	var y_max = Math.log(ymax)/Math.log(ylogbase);\
8109	schaersvoo	9481	var x_min = 0;var x_max = xsize;var y_s;var y_e;var num;var xmarge;var ymarge;\
11972	schaersvoo	9482	if(use_axis_numbering != -1){\
7956	schaersvoo	9483	ctx.font = font_family;\
		9484	xmarge = ctx.measureText(ylogbase+\"^\"+y_max.toFixed(0)+' ').width;\
		9485	ymarge = 2*font_size;\
		9486	ctx.save();\
		9487	ctx.fillStyle=\"rgba(255,215,0,0.2)\";\
		9488	ctx.rect(0,0,xmarge,ysize);\
		9489	ctx.rect(0,ysize-ymarge,xsize,ysize);\
		9490	ctx.fill();\
		9491	ctx.restore();\
		9492	}else{xmarge = 0;ymarge = 0;};\
11088	schaersvoo	9493	if( typeof(xaxislabel) !== 'undefined' ){\
7956	schaersvoo	9494	ctx.save();\
		9495	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		9496	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		9497	corr = ctx.measureText(xaxislabel).width;\
		9498	ctx.fillText(xaxislabel,xsize - 1.5corr,ysize - 2font_size);\
		9499	ctx.restore();\
		9500	};\
11088	schaersvoo	9501	if( typeof(yaxislabel) !== 'undefined' ){\
7956	schaersvoo	9502	ctx.save();\
		9503	ctx.font = \"italic \"+font_size+\"px Ariel\";\
		9504	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		9505	corr = ctx.measureText(yaxislabel).width;\
		9506	ctx.translate(xmarge+font_size,corr+font_size);\
		9507	ctx.rotate(-0.5*Math.PI);\
		9508	ctx.fillText(yaxislabel,0,0);\
		9509	ctx.restore();\
		9510	};\
		9511	ctx.fillStyle = \"rgba(\"+font_color+\",\"+major_opacity+\")\";\
		9512	ctx.lineWidth = line_width;\
		9513	for(var p = y_min; p <= y_max ; p++){\
		9514	num = Math.pow(ylogbase,p);\
		9515	for(var i = 1 ; i < ylogbase ; i++){\
		9516	y_e = y2px(i*num);\
7729	schaersvoo	9517	if( i == 1 ){\
7956	schaersvoo	9518	ctx.lineWidth = line_width;\
7729	schaersvoo	9519	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
11972	schaersvoo	9520	if( use_axis_numbering != -1 && p > y_min){\
7735	schaersvoo	9521	ctx.fillText(ylogbase+'^'+p.toFixed(0),0,y_e);\
7729	schaersvoo	9522	};\
		9523	}else{\
7956	schaersvoo	9524	ctx.lineWidth = 0.2*line_width;\
7729	schaersvoo	9525	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
		9526	};\
7956	schaersvoo	9527	ctx.beginPath();\
		9528	ctx.moveTo(xmarge,y_e);\
		9529	ctx.lineTo(xsize,y_e);\
		9530	ctx.stroke();\
		9531	ctx.closePath();\
		9532	};\
		9533	};\
7729	schaersvoo	9534	var stepx = Math.abs(x2px(xmajor) - x2px(0));\
		9535	var minor_step = stepx / xminor;\
		9536	var prec = Math.log(precision)/Math.log(10);\
		9537	var xtxt;var corr;var flip = 0;\
7749	schaersvoo	9538	for(var x = stepx ; x < xsize ; x = x + stepx){\
7729	schaersvoo	9539	ctx.strokeStyle=\"rgba(\"+major_color+\",\"+major_opacity+\")\";\
7956	schaersvoo	9540	ctx.lineWidth = line_width;\
		9541	ctx.beginPath();\
		9542	ctx.moveTo(x,ysize-ymarge);\
		9543	ctx.lineTo(x,0);\
		9544	ctx.stroke();\
		9545	ctx.closePath();\
11972	schaersvoo	9546	if( use_axis_numbering != -1){\
7729	schaersvoo	9547	xtxt = (px2x(x)).toFixed(prec);\
		9548	corr = 0.5*(ctx.measureText(xtxt).width);\
		9549	if(flip == 0 ){flip = 1;ctx.fillText( xtxt,x - corr ,ysize - 0.2*font_size );}else{\
		9550	flip = 0;ctx.fillText( xtxt,x - corr ,ysize - 1.2*font_size );};\
		9551	};\
		9552	for(var dx = 1 ; dx < xminor ; dx++){\
		9553	ctx.strokeStyle=\"rgba(\"+minor_color+\",\"+minor_opacity+\")\";\
7956	schaersvoo	9554	ctx.lineWidth = 0.2*line_width;\
		9555	ctx.beginPath();\
7739	schaersvoo	9556	ctx.moveTo(x+dx*minor_step,ysize - ymarge);\
7956	schaersvoo	9557	ctx.lineTo(x+dx*minor_step,0);\
		9558	ctx.stroke();\
		9559	ctx.closePath();\
7735	schaersvoo	9560	};\
		9561	};\
7956	schaersvoo	9562	ctx.restore();\
		9563	};",canvas_root_id,canvas_root_id,canvas_root_id,canvas_root_id);
7729	schaersvoo	9564	break;
9213	schaersvoo	9565
7614	schaersvoo	9566	default:break;
		9567	}
		9568	}
		9569	}
		9570	return;
		9571	}
		9572
		9573	void check_string_length(int L){
9466	schaersvoo	9574	if( L > MAX_BUFFER-1){
7614	schaersvoo	9575	canvas_error("problem with your arguments to command...");
		9576	}
		9577	return;
		9578	}
		9579
		9580
		9581	int get_token(FILE *infile){
		9582	int c,i=0;
		9583	char temp[MAX_INT], *input_type;
		9584	char *line="line",
		9585	*audio="audio",
		9586	*blink="blink",
		9587	*arrowhead="arrowhead",
		9588	*crosshairsize="crosshairsize",
		9589	*crosshair="crosshair",
		9590	*crosshairs="crosshairs",
		9591	*audioobject="audioobject",
		9592	*style="style",
		9593	*mouse="mouse",
7991	schaersvoo	9594	*mousex="mousex",
		9595	*mousey="mousey",
8071	schaersvoo	9596	*mouse_display="display",
		9597	*mouse_degree="mouse_degree",
7614	schaersvoo	9598	*userdraw="userdraw",
		9599	*highlight="highlight",
		9600	*http="http",
		9601	*rays="rays",
		9602	*dashtype="dashtype",
		9603	*dashed="dashed",
		9604	*filled="filled",
		9605	*lattice="lattice",
		9606	*parallel="parallel",
		9607	*segment="segment",
8299	schaersvoo	9608	*segments="segments",
7614	schaersvoo	9609	*dsegment="dsegment",
9374	schaersvoo	9610	*dsegments="dsegments",
7614	schaersvoo	9611	*seg="seg",
9383	schaersvoo	9612	*segs="segs",
7614	schaersvoo	9613	*bgimage="bgimage",
		9614	*bgcolor="bgcolor",
		9615	*strokecolor="strokecolor",
		9616	*backgroundimage="backgroundimage",
		9617	*text="text",
		9618	*textup="textup",
		9619	*mouseprecision="mouseprecision",
		9620	*precision="precision",
		9621	*plotsteps="plotsteps",
		9622	*plotstep="plotstep",
		9623	*tsteps="tsteps",
		9624	*curve="curve",
		9625	*dcurve="dcurve",
14038	schaersvoo	9626	*curvedarrow="curvedarrow",
		9627	*curvedarrows="curvedarrows",
		9628	*curvedarrow2="curvedarrow2",
		9629	*curvedarrows2="curvedarrows2",
7614	schaersvoo	9630	*plot="plot",
		9631	*dplot="dplot",
7788	schaersvoo	9632	*levelcurve="levelcurve",
7614	schaersvoo	9633	*fontsize="fontsize",
		9634	*fontcolor="fontcolor",
		9635	*axis="axis",
		9636	*axisnumbering="axisnumbering",
		9637	*axisnumbers="axisnumbers",
		9638	*arrow="arrow",
9382	schaersvoo	9639	*vector="vector",
		9640	*vectors="vectors",
7614	schaersvoo	9641	*darrow="darrow",
		9642	*arrow2="arrow2",
		9643	*darrow2="darrow2",
8304	schaersvoo	9644	*arrows="arrows",
8347	schaersvoo	9645	*arrows2="arrows2",
7614	schaersvoo	9646	*zoom="zoom",
		9647	*grid="grid",
		9648	*hline="hline",
7786	schaersvoo	9649	*dhline="dhline",
7614	schaersvoo	9650	*drag="drag",
		9651	*horizontalline="horizontalline",
9383	schaersvoo	9652	*horizontallines="horizontallines",
7614	schaersvoo	9653	*vline="vline",
7786	schaersvoo	9654	*dvline="dvline",
7614	schaersvoo	9655	*verticalline="verticalline",
9383	schaersvoo	9656	*verticallines="verticallines",
7614	schaersvoo	9657	*triangle="triangle",
9306	schaersvoo	9658	*triangles="triangles",
7614	schaersvoo	9659	*ftriangle="ftriangle",
9374	schaersvoo	9660	*ftriangles="ftriangles",
7614	schaersvoo	9661	*mathml="mathml",
		9662	*html="html",
		9663	*input="input",
8146	schaersvoo	9664	*clearbutton="clearbutton",
9386	schaersvoo	9665	*erase="erase",
		9666	*delete="delete",
7614	schaersvoo	9667	*inputstyle="inputstyle",
		9668	*textarea="textarea",
		9669	*trange="trange",
		9670	*ranget="ranget",
		9671	*xrange="xrange",
		9672	*yrange="yrange",
		9673	*rangex="rangex",
		9674	*rangey="rangey",
8370	schaersvoo	9675	*path="path",
7614	schaersvoo	9676	*polyline="polyline",
8351	schaersvoo	9677	*brokenline="brokenline",
7614	schaersvoo	9678	*lines="lines",
		9679	*poly="poly",
		9680	*polygon="polygon",
		9681	*fpolygon="fpolygon",
		9682	*fpoly="fpoly",
		9683	*filledpoly="filledpoly",
		9684	*filledpolygon="filledpolygon",
		9685	*rect="rect",
		9686	*frect="frect",
		9687	*rectangle="rectangle",
		9688	*frectangle="frectangle",
		9689	*square="square",
		9690	*fsquare="fsquare",
9374	schaersvoo	9691	*fsquares="fsquares",
8363	schaersvoo	9692	*rects="rects",
		9693	*frects="frects",
7614	schaersvoo	9694	*dline="dline",
		9695	*arc="arc",
		9696	*filledarc="filledarc",
9374	schaersvoo	9697	*farc="farc",
7614	schaersvoo	9698	*size="size",
		9699	*string="string",
		9700	*stringup="stringup",
		9701	*copy="copy",
		9702	*copyresized="copyresized",
		9703	*opacity="opacity",
		9704	*transparent="transparent",
		9705	*fill="fill",
		9706	*point="point",
		9707	*points="points",
		9708	*linewidth="linewidth",
		9709	*circle="circle",
8304	schaersvoo	9710	*circles="circles",
7614	schaersvoo	9711	*fcircle="fcircle",
9374	schaersvoo	9712	*fcircles="fcircles",
7614	schaersvoo	9713	*disk="disk",
9374	schaersvoo	9714	*disks="disks",
7614	schaersvoo	9715	*comment="#",
		9716	*end="end",
		9717	*ellipse="ellipse",
12110	schaersvoo	9718	*ellipses="ellipses",
7614	schaersvoo	9719	*fellipse="fellipse",
		9720	*rotate="rotate",
7785	schaersvoo	9721	*affine="affine",
9907	schaersvoo	9722	*rotationcenter="rotationcenter",
		9723	*killrotate="killrotate",
7785	schaersvoo	9724	*killaffine="killaffine",
7614	schaersvoo	9725	*fontfamily="fontfamily",
		9726	*fillcolor="fillcolor",
		9727	*clicktile="clicktile",
		9728	*clicktile_colors="clicktile_colors",
		9729	*translation="translation",
		9730	*translate="translate",
		9731	*killtranslation="killtranslation",
		9732	*killtranslate="killtranslate",
		9733	*onclick="onclick",
8370	schaersvoo	9734	*roundrects="roundrects",
7614	schaersvoo	9735	*roundrect="roundrect",
		9736	*froundrect="froundrect",
9374	schaersvoo	9737	*froundrects="froundrects",
7614	schaersvoo	9738	*roundrectangle="roundrectangle",
		9739	*patternfill="patternfill",
		9740	*hatchfill="hatchfill",
		9741	*diafill="diafill",
7647	schaersvoo	9742	*diamondfill="diamondfill",
7614	schaersvoo	9743	*dotfill="dotfill",
11830	schaersvoo	9744	*textfill="textfill",
7614	schaersvoo	9745	*gridfill="gridfill",
		9746	*imagefill="imagefill",
7735	schaersvoo	9747	*xlogbase="xlogbase",
		9748	*ylogbase="ylogbase",
7614	schaersvoo	9749	*xlogscale="xlogscale",
		9750	*ylogscale="ylogscale",
		9751	*xylogscale="xylogscale",
		9752	*intooltip="intooltip",
9329	schaersvoo	9753	*popup="popup",
7614	schaersvoo	9754	*replyformat="replyformat",
		9755	*floodfill="floodfill",
11772	schaersvoo	9756	*fillall="fillall",
7614	schaersvoo	9757	*filltoborder="filltoborder",
		9758	*setpixel="setpixel",
		9759	*pixels="pixels",
		9760	*pixelsize="pixelsize",
		9761	*xaxis="xaxis",
9341	schaersvoo	9762	*xaxisup="xaxisup",
7614	schaersvoo	9763	*yaxis="yaxis",
		9764	*xaxistext="xaxistext",
9341	schaersvoo	9765	*xaxistextup="xaxistextup",
7614	schaersvoo	9766	*yaxistext="yaxistext",
		9767	*piechart="piechart",
9433	schaersvoo	9768	*boxplot="boxplot",
9465	schaersvoo	9769	*boxplotdata="boxplotdata",
		9770	*userboxplot="userboxplot",
		9771	*userboxplotdata="userboxplotdata",
7614	schaersvoo	9772	*legend="legend",
		9773	*legendcolors="legendcolors",
		9774	*xlabel="xlabel",
		9775	*ylabel="ylabel",
		9776	*barchart="barchart",
		9777	*linegraph="linegraph",
		9778	*clock="clock",
		9779	*animate="animate",
		9780	*video="video",
		9781	*status="status",
7877	schaersvoo	9782	*nostatus="nostatus",
7652	schaersvoo	9783	*snaptogrid="snaptogrid",
7784	schaersvoo	9784	*xsnaptogrid="xsnaptogrid",
		9785	*ysnaptogrid="ysnaptogrid",
8379	schaersvoo	9786	*snaptopoints="snaptopoints",
9213	schaersvoo	9787	*snaptofunction="snaptofunction",
		9788	*snaptofun="snaptofun",
7654	schaersvoo	9789	*userinput_xy="userinput_xy",
8193	schaersvoo	9790	*userinput_function="userinput_function",
7663	schaersvoo	9791	*usertextarea_xy="usertextarea_xy",
8222	schaersvoo	9792	*userinput="userinput",
7823	schaersvoo	9793	*jsmath="jsmath",
7858	schaersvoo	9794	*trace_jscurve="trace_jscurve",
7838	schaersvoo	9795	*setlimits="setlimits",
7858	schaersvoo	9796	*jscurve="jscurve",
		9797	*jsplot="jsplot",
7983	schaersvoo	9798	*sgraph="sgraph",
7984	schaersvoo	9799	*title="title",
7996	schaersvoo	9800	*centerstring="centerstring",
		9801	*xunit="xunit",
8071	schaersvoo	9802	*yunit="yunit",
8101	schaersvoo	9803	*slider="slider",
8105	schaersvoo	9804	*killslider="killslider",
8244	schaersvoo	9805	*angle="angle",
8365	schaersvoo	9806	*halflines="halflines",
		9807	*demilines="demilines",
8244	schaersvoo	9808	*halfline="halfline",
8297	schaersvoo	9809	*demiline="demiline",
8366	schaersvoo	9810	*hlines="hlines",
		9811	*vlines="vlines",
8370	schaersvoo	9812	*bezier="bezier",
9213	schaersvoo	9813	*functionlabel="functionlabel",
		9814	*sliderfunction_x="sliderfunction_x",
		9815	*sliderfunction_y="sliderfunction_y",
		9816	*multidraw="multidraw",
		9817	*multilinewidth="multilinewidth",
		9818	*multistrokecolors="multistrokecolors",
		9819	*multifillcolors="multifillcolors",
		9820	*multistrokeopacity="multistrokeopacity",
		9821	*multifillopacity="multifillopacity",
		9822	*multifill="multifill",
		9823	*multidash="multidash",
		9824	*multilabel="multilabel",
		9825	*multiuserinput="multiuserinput",
14038	schaersvoo	9826	*multiinput="multiinput",
9289	schaersvoo	9827	*multisnaptogrid="multisnaptogrid",
14038	schaersvoo	9828	*multisnap="multisnap",
9289	schaersvoo	9829	*protractor="protractor",
9386	schaersvoo	9830	*ruler="ruler",
		9831	*cursor="cursor",
9427	schaersvoo	9832	*pointer="pointer",
		9833	*yerrorbars="yerrorbars",
11006	schaersvoo	9834	*xerrorbars="xerrorbars",
11044	schaersvoo	9835	*noxaxis="noxaxis",
		9836	*noyaxis="noyaxis",
11767	schaersvoo	9837	*colorpalette="colorpalette",
14038	schaersvoo	9838	*imagepalette="imagepalette",
12063	schaersvoo	9839	*yoffset="yoffset",
11802	schaersvoo	9840	*xoffset="xoffset",
		9841	*centered="centered",
		9842	*xyoffset="xyoffset",
		9843	*resetoffset="resetoffset",
11837	schaersvoo	9844	*fillpattern="fillpattern",
11890	schaersvoo	9845	*numberline="numberline",
11006	schaersvoo	9846	*canvastype="canvastype";
7614	schaersvoo	9847
10891	schaersvoo	9848	while(((c = getc(infile)) != EOF)&&(c!='\n')&&(c!=',')&&(c!='=')&&(c!='\r')&&(c!='\t')){
		9849	if( i == 0 && (c == ' ') ){ continue; /* white spaces or tabs allowed before first command identifier */
		9850	}else{
		9851	if( c == ' ' ){
7614	schaersvoo	9852	break;
10891	schaersvoo	9853	}else{
		9854	temp[i] = c;
		9855	if(i > MAX_INT - 2){canvas_error("command string too long !");}
		9856	i++;
		9857	}
		9858	}
		9859	if(temp[0] == '#'){ break; }
7614	schaersvoo	9860	}
10891	schaersvoo	9861	if (c == '\n' \|\| c == '\r' \|\| c == '\t' ){ line_number++; }
		9862	if (c == EOF) {finished=1;return 0;}
7614	schaersvoo	9863
		9864	temp[i]='\0';
		9865	input_type=(char*)my_newmem(strlen(temp));
		9866	snprintf(input_type,sizeof(temp),"%s",temp);
10891	schaersvoo	9867	/* fprintf(stdout,"temp = %s <br/>",input_type); */
7614	schaersvoo	9868	if( strcmp(input_type, size) == 0 ){
		9869	free(input_type);
		9870	return SIZE;
		9871	}
		9872	if( strcmp(input_type, xrange) == 0 ){
		9873	free(input_type);
		9874	return XRANGE;
		9875	}
		9876	if( strcmp(input_type, rangex) == 0 ){
		9877	free(input_type);
		9878	return XRANGE;
		9879	}
		9880	if( strcmp(input_type, trange) == 0 ){
		9881	free(input_type);
		9882	return TRANGE;
		9883	}
		9884	if( strcmp(input_type, ranget) == 0 ){
		9885	free(input_type);
		9886	return TRANGE;
		9887	}
		9888	if( strcmp(input_type, yrange) == 0 ){
		9889	free(input_type);
		9890	return YRANGE;
		9891	}
		9892	if( strcmp(input_type, rangey) == 0 ){
		9893	free(input_type);
		9894	return YRANGE;
		9895	}
		9896	if( strcmp(input_type, linewidth) == 0 ){
		9897	free(input_type);
		9898	return LINEWIDTH;
		9899	}
		9900	if( strcmp(input_type, dashed) == 0 ){
		9901	free(input_type);
		9902	return DASHED;
		9903	}
		9904	if( strcmp(input_type, dashtype) == 0 ){
		9905	free(input_type);
		9906	return DASHTYPE;
		9907	}
		9908	if( strcmp(input_type, axisnumbering) == 0 ){
		9909	free(input_type);
		9910	return AXIS_NUMBERING;
		9911	}
		9912	if( strcmp(input_type, axisnumbers) == 0 ){
		9913	free(input_type);
		9914	return AXIS_NUMBERING;
		9915	}
		9916	if( strcmp(input_type, axis) == 0 ){
		9917	free(input_type);
		9918	return AXIS;
		9919	}
		9920	if( strcmp(input_type, grid) == 0 ){
		9921	free(input_type);
		9922	return GRID;
		9923	}
9383	schaersvoo	9924	if( strcmp(input_type, hlines) == 0 \|\| strcmp(input_type, horizontallines) == 0 ){
8366	schaersvoo	9925	free(input_type);
		9926	return HLINES;
		9927	}
9383	schaersvoo	9928	if( strcmp(input_type, vlines) == 0 \|\| strcmp(input_type, verticallines) == 0 ){
8366	schaersvoo	9929	free(input_type);
		9930	return VLINES;
		9931	}
9383	schaersvoo	9932	if( strcmp(input_type, hline) == 0 \|\| strcmp(input_type, horizontalline) == 0 ){
7614	schaersvoo	9933	free(input_type);
		9934	return HLINE;
		9935	}
		9936	if( strcmp(input_type, vline) == 0 \|\| strcmp(input_type, verticalline) == 0 ){
		9937	free(input_type);
		9938	return VLINE;
		9939	}
		9940	if( strcmp(input_type, line) == 0 ){
		9941	free(input_type);
		9942	return LINE;
		9943	}
9383	schaersvoo	9944	if( strcmp(input_type, segments) == 0 \|\| strcmp(input_type, segs) == 0 ){
8299	schaersvoo	9945	free(input_type);
		9946	return SEGMENTS;
		9947	}
7614	schaersvoo	9948	if( strcmp(input_type, seg) == 0 \|\| strcmp(input_type, segment) == 0 ){
		9949	free(input_type);
		9950	return SEGMENT;
		9951	}
9374	schaersvoo	9952	if( strcmp(input_type, dsegments) == 0 ){
		9953	free(input_type);
		9954	use_dashed = TRUE;
		9955	return SEGMENTS;
		9956	}
7614	schaersvoo	9957	if( strcmp(input_type, dsegment) == 0 ){
		9958	free(input_type);
		9959	use_dashed = TRUE;
		9960	return SEGMENT;
		9961	}
		9962	if( strcmp(input_type, crosshairsize) == 0 ){
		9963	free(input_type);
		9964	return CROSSHAIRSIZE;
		9965	}
		9966	if( strcmp(input_type, arrowhead) == 0 ){
		9967	free(input_type);
		9968	return ARROWHEAD;
		9969	}
		9970	if( strcmp(input_type, crosshairs) == 0 ){
		9971	free(input_type);
		9972	return CROSSHAIRS;
		9973	}
		9974	if( strcmp(input_type, crosshair) == 0 ){
		9975	free(input_type);
		9976	return CROSSHAIR;
		9977	}
		9978	if( strcmp(input_type, onclick) == 0 ){
		9979	free(input_type);
		9980	return ONCLICK;
		9981	}
		9982	if( strcmp(input_type, drag) == 0 ){
		9983	free(input_type);
		9984	return DRAG;
		9985	}
		9986	if( strcmp(input_type, userdraw) == 0 ){
		9987	free(input_type);
		9988	return USERDRAW;
		9989	}
		9990	if( strcmp(input_type, highlight) == 0 \|\| strcmp(input_type, style) == 0 ){
		9991	free(input_type);
		9992	return STYLE;
		9993	}
		9994	if( strcmp(input_type, fillcolor) == 0 ){
		9995	free(input_type);
		9996	return FILLCOLOR;
		9997	}
		9998	if( strcmp(input_type, strokecolor) == 0 ){
		9999	free(input_type);
		10000	return STROKECOLOR;
		10001	}
		10002	if( strcmp(input_type, filled) == 0 ){
		10003	free(input_type);
		10004	return FILLED;
		10005	}
		10006	if( strcmp(input_type, http) == 0 ){
		10007	free(input_type);
		10008	return HTTP;
		10009	}
		10010	if( strcmp(input_type, rays) == 0 ){
		10011	free(input_type);
		10012	return RAYS;
		10013	}
		10014	if( strcmp(input_type, lattice) == 0 ){
		10015	free(input_type);
		10016	return LATTICE;
		10017	}
		10018	if( strcmp(input_type, bgimage) == 0 ){
		10019	free(input_type);
		10020	return BGIMAGE;
		10021	}
		10022	if( strcmp(input_type, bgcolor) == 0 ){
		10023	free(input_type);
		10024	return BGCOLOR;
		10025	}
		10026	if( strcmp(input_type, backgroundimage) == 0 ){
		10027	free(input_type);
		10028	return BGIMAGE;
		10029	}
		10030	if( strcmp(input_type, text) == 0 ){
		10031	free(input_type);
		10032	return FLY_TEXT;
		10033	}
		10034	if( strcmp(input_type, textup) == 0 ){
		10035	free(input_type);
		10036	return FLY_TEXTUP;
		10037	}
		10038	if( strcmp(input_type, mouse) == 0 ){
		10039	free(input_type);
		10040	return MOUSE;
		10041	}
7991	schaersvoo	10042	if( strcmp(input_type, mousex) == 0 ){
		10043	free(input_type);
		10044	return MOUSEX;
		10045	}
		10046	if( strcmp(input_type, mousey) == 0 ){
		10047	free(input_type);
		10048	return MOUSEY;
		10049	}
8071	schaersvoo	10050	if( strcmp(input_type, mouse_degree) == 0 ){
		10051	free(input_type);
		10052	return MOUSE_DEGREE;
		10053	}
		10054	if( strcmp(input_type, mouse_display) == 0 ){
		10055	free(input_type);
		10056	return MOUSE_DISPLAY;
		10057	}
7614	schaersvoo	10058	if( strcmp(input_type, mouseprecision) == 0 ){
		10059	free(input_type);
		10060	return MOUSE_PRECISION;
		10061	}
		10062	if( strcmp(input_type, precision) == 0 ){
		10063	free(input_type);
		10064	return MOUSE_PRECISION;
		10065	}
		10066	if( strcmp(input_type, curve) == 0 ){
		10067	free(input_type);
		10068	return CURVE;
		10069	}
		10070	if( strcmp(input_type, dcurve) == 0 ){
7788	schaersvoo	10071	use_dashed = TRUE;
7614	schaersvoo	10072	free(input_type);
		10073	return CURVE;
		10074	}
		10075	if( strcmp(input_type, plot) == 0 ){
		10076	free(input_type);
		10077	return CURVE;
		10078	}
		10079	if( strcmp(input_type, dplot) == 0 ){
7788	schaersvoo	10080	use_dashed = TRUE;
7614	schaersvoo	10081	free(input_type);
		10082	return CURVE;
		10083	}
7788	schaersvoo	10084	if( strcmp(input_type, levelcurve) == 0 ){
		10085	free(input_type);
		10086	return LEVELCURVE;
		10087	}
7614	schaersvoo	10088	if( strcmp(input_type, plotsteps) == 0 ){
		10089	free(input_type);
		10090	return PLOTSTEPS;
		10091	}
		10092	if( strcmp(input_type, plotstep) == 0 ){
		10093	free(input_type);
		10094	return PLOTSTEPS;
		10095	}
		10096	if( strcmp(input_type, tsteps) == 0 ){
		10097	free(input_type);
		10098	return PLOTSTEPS;
		10099	}
		10100	if( strcmp(input_type, fontsize) == 0 ){
		10101	free(input_type);
		10102	return FONTSIZE;
		10103	}
		10104	if( strcmp(input_type, fontcolor) == 0 ){
		10105	free(input_type);
		10106	return FONTCOLOR;
		10107	}
		10108	if( strcmp(input_type, arrow2) == 0 ){
		10109	free(input_type);
		10110	return ARROW2;
		10111	}
		10112	if( strcmp(input_type, darrow) == 0 ){
		10113	free(input_type);
8071	schaersvoo	10114	use_dashed = TRUE;
7614	schaersvoo	10115	return ARROW;
		10116	}
		10117	if( strcmp(input_type, darrow2) == 0 ){
		10118	free(input_type);
		10119	use_dashed = TRUE;
		10120	return ARROW2;
		10121	}
8347	schaersvoo	10122	if( strcmp(input_type, arrows2) == 0 ){
		10123	free(input_type);
		10124	return ARROWS2;
		10125	}
9382	schaersvoo	10126	if( strcmp(input_type, arrows) == 0 \|\| strcmp(input_type, vectors) == 0 ){
8304	schaersvoo	10127	free(input_type);
		10128	return ARROWS;
		10129	}
9382	schaersvoo	10130	if( strcmp(input_type, arrow) == 0 \|\| strcmp(input_type, vector) == 0 ){
8304	schaersvoo	10131	free(input_type);
		10132	return ARROW;
		10133	}
7614	schaersvoo	10134	if( strcmp(input_type, zoom) == 0 ){
		10135	free(input_type);
		10136	return ZOOM;
		10137	}
		10138	if( strcmp(input_type, triangle) == 0 ){
		10139	free(input_type);
		10140	return TRIANGLE;
		10141	}
9306	schaersvoo	10142	if( strcmp(input_type, triangles) == 0 ){
		10143	free(input_type);
		10144	return TRIANGLES;
		10145	}
9374	schaersvoo	10146	if( strcmp(input_type, ftriangles) == 0 ){
		10147	free(input_type);
		10148	use_filled = TRUE;
		10149	return TRIANGLES;
		10150	}
7614	schaersvoo	10151	if( strcmp(input_type, ftriangle) == 0 ){
		10152	free(input_type);
		10153	use_filled = TRUE;
		10154	return TRIANGLE;
		10155	}
		10156	if( strcmp(input_type, input) == 0 ){
		10157	free(input_type);
		10158	return INPUT;
		10159	}
		10160	if( strcmp(input_type, inputstyle) == 0 ){
		10161	free(input_type);
		10162	return INPUTSTYLE;
		10163	}
		10164	if( strcmp(input_type, textarea) == 0 ){
		10165	free(input_type);
		10166	return TEXTAREA;
		10167	}
		10168	if( strcmp(input_type, mathml) == 0 ){
		10169	free(input_type);
		10170	return MATHML;
		10171	}
		10172	if( strcmp(input_type, html) == 0 ){
		10173	free(input_type);
		10174	return MATHML;
		10175	}
		10176	if( strcmp(input_type, fontfamily) == 0 ){
		10177	free(input_type);
		10178	return FONTFAMILY;
		10179	}
10975	schaersvoo	10180	if( strcmp(input_type, polyline) == 0 \|\| strcmp(input_type, path) == 0 \|\| strcmp(input_type, brokenline) == 0 ){
7614	schaersvoo	10181	free(input_type);
		10182	return POLYLINE;
		10183	}
8351	schaersvoo	10184	if( strcmp(input_type, lines) == 0 ){
		10185	free(input_type);
		10186	return LINES;
		10187	}
9374	schaersvoo	10188	if( strcmp(input_type, rects) == 0){
8363	schaersvoo	10189	free(input_type);
		10190	return RECTS;
		10191	}
9383	schaersvoo	10192	if( strcmp(input_type, frects) == 0 ){
8363	schaersvoo	10193	free(input_type);
9374	schaersvoo	10194	use_filled = TRUE;
8363	schaersvoo	10195	return RECTS;
		10196	}
7614	schaersvoo	10197	if( strcmp(input_type, rect) == 0 \|\| strcmp(input_type, rectangle) == 0 ){
		10198	free(input_type);
		10199	return RECT;
		10200	}
9374	schaersvoo	10201	if( strcmp(input_type, square) == 0 ){
		10202	free(input_type);
11991	schaersvoo	10203	return SQUARE;
9374	schaersvoo	10204	}
		10205	if( strcmp(input_type, fsquare) == 0 ){
		10206	free(input_type);
		10207	use_filled = TRUE;
		10208	return SQUARE;
		10209	}
		10210	if( strcmp(input_type, fsquares) == 0 ){
		10211	free(input_type);
		10212	use_filled = TRUE;
		10213	return RECTS;
		10214	}
8370	schaersvoo	10215	if( strcmp(input_type, roundrects) == 0 ){
		10216	free(input_type);
		10217	return ROUNDRECTS;
		10218	}
7614	schaersvoo	10219	if( strcmp(input_type, roundrect) == 0 \|\| strcmp(input_type, roundrectangle) == 0 ){
		10220	free(input_type);
		10221	return ROUNDRECT;
		10222	}
9374	schaersvoo	10223	if( strcmp(input_type, froundrects) == 0 ){
7614	schaersvoo	10224	free(input_type);
		10225	use_filled = TRUE;
9374	schaersvoo	10226	return ROUNDRECTS;
7614	schaersvoo	10227	}
9374	schaersvoo	10228	if( strcmp(input_type, froundrect) == 0 ){
7614	schaersvoo	10229	free(input_type);
		10230	use_filled = TRUE;
9374	schaersvoo	10231	return ROUNDRECT;
7614	schaersvoo	10232	}
		10233	if( strcmp(input_type, dline) == 0 ){
		10234	use_dashed = TRUE;
		10235	free(input_type);
		10236	return LINE;
		10237	}
7786	schaersvoo	10238	if( strcmp(input_type, dvline) == 0 ){
		10239	use_dashed = TRUE;
		10240	free(input_type);
		10241	return VLINE;
		10242	}
		10243	if( strcmp(input_type, dhline) == 0 ){
		10244	use_dashed = TRUE;
		10245	free(input_type);
		10246	return HLINE;
		10247	}
9386	schaersvoo	10248	if( strcmp(input_type, halflines) == 0 \|\| strcmp(input_type, demilines) == 0 ){
		10249	free(input_type);
		10250	return HALFLINES;
		10251	}
		10252	if( strcmp(input_type, halfline) == 0 \|\| strcmp(input_type, demiline) == 0 ){
		10253	free(input_type);
		10254	return HALFLINE;
		10255	}
7614	schaersvoo	10256	if( strcmp(input_type, frect) == 0 \|\| strcmp(input_type, frectangle) == 0 ){
		10257	use_filled = TRUE;
		10258	free(input_type);
		10259	return RECT;
		10260	}
8304	schaersvoo	10261	if( strcmp(input_type, circles) == 0 ){
		10262	free(input_type);
		10263	return CIRCLES;
		10264	}
7614	schaersvoo	10265	if( strcmp(input_type, fcircle) == 0 \|\| strcmp(input_type, disk) == 0 ){
		10266	use_filled = TRUE;
		10267	free(input_type);
		10268	return CIRCLE;
		10269	}
9374	schaersvoo	10270	if( strcmp(input_type, fcircles) == 0 \|\| strcmp(input_type, disks) == 0 ){
		10271	use_filled = TRUE;
		10272	free(input_type);
		10273	return CIRCLES;
		10274	}
7614	schaersvoo	10275	if( strcmp(input_type, circle) == 0 ){
		10276	free(input_type);
		10277	return CIRCLE;
		10278	}
		10279	if( strcmp(input_type, point) == 0 ){
		10280	free(input_type);
		10281	return POINT;
		10282	}
		10283	if( strcmp(input_type, points) == 0 ){
		10284	free(input_type);
		10285	return POINTS;
		10286	}
9374	schaersvoo	10287	if( strcmp(input_type, filledarc) == 0 \|\| strcmp(input_type, farc) == 0 ){
7614	schaersvoo	10288	use_filled = TRUE;
		10289	free(input_type);
		10290	return ARC;
		10291	}
		10292	if( strcmp(input_type, arc) == 0 ){
		10293	free(input_type);
		10294	return ARC;
		10295	}
		10296	if( strcmp(input_type, poly) == 0 \|\| strcmp(input_type, polygon) == 0 ){
		10297	free(input_type);
		10298	return POLY;
		10299	}
		10300	if( strcmp(input_type, fpoly) == 0 \|\| strcmp(input_type, filledpoly) == 0 \|\| strcmp(input_type,filledpolygon) == 0 \|\| strcmp(input_type,fpolygon) == 0 ){
		10301	use_filled = TRUE;
		10302	free(input_type);
		10303	return POLY;
		10304	}
		10305	if( strcmp(input_type, ellipse) == 0){
		10306	free(input_type);
		10307	return ELLIPSE;
		10308	}
12110	schaersvoo	10309	if( strcmp(input_type, ellipses) == 0){
		10310	free(input_type);
		10311	return ELLIPSES;
		10312	}
7614	schaersvoo	10313	if( strcmp(input_type, string) == 0 ){
		10314	free(input_type);
		10315	return STRING;
		10316	}
		10317	if( strcmp(input_type, stringup) == 0 ){
		10318	free(input_type);
		10319	return STRINGUP;
		10320	}
9385	schaersvoo	10321	if( strcmp(input_type, opacity) == 0 \|\| strcmp(input_type, transparent) == 0 ){
7614	schaersvoo	10322	free(input_type);
		10323	return OPACITY;
		10324	}
		10325	if( strcmp(input_type, comment) == 0){
		10326	free(input_type);
		10327	return COMMENT;
		10328	}
		10329	if( strcmp(input_type, fellipse) == 0){
		10330	free(input_type);
		10331	use_filled = TRUE;
		10332	return ELLIPSE;
8224	bpr	10333	}
9386	schaersvoo	10334	if( strcmp(input_type, clearbutton) == 0 \|\| strcmp(input_type, erase) == 0 \|\| strcmp(input_type, delete) == 0){
7614	schaersvoo	10335	free(input_type);
8146	schaersvoo	10336	return CLEARBUTTON;
7614	schaersvoo	10337	}
		10338	if( strcmp(input_type, translation) == 0 \|\| strcmp(input_type, translate) == 0 ){
		10339	free(input_type);
		10340	return TRANSLATION;
		10341	}
		10342	if( strcmp(input_type, killtranslation) == 0 \|\| strcmp(input_type, killtranslate) == 0){
		10343	free(input_type);
		10344	return KILLTRANSLATION;
		10345	}
		10346	if( strcmp(input_type, rotate) == 0){
		10347	free(input_type);
		10348	return ROTATE;
		10349	}
9907	schaersvoo	10350	if( strcmp(input_type, killrotate) == 0){
		10351	free(input_type);
		10352	return KILLROTATE;
		10353	}
		10354	if( strcmp(input_type, rotationcenter) == 0){
		10355	free(input_type);
		10356	return ROTATION_CENTER;
		10357	}
7785	schaersvoo	10358	if( strcmp(input_type, affine) == 0){
		10359	free(input_type);
		10360	return AFFINE;
		10361	}
		10362	if( strcmp(input_type, killaffine) == 0){
		10363	free(input_type);
		10364	return KILLAFFINE;
		10365	}
7614	schaersvoo	10366	if( strcmp(input_type, slider) == 0 ){
		10367	free(input_type);
		10368	return SLIDER;
		10369	}
8101	schaersvoo	10370	if( strcmp(input_type, killslider) == 0 ){
		10371	free(input_type);
		10372	return KILLSLIDER;
		10373	}
7614	schaersvoo	10374	if( strcmp(input_type, copy) == 0 ){
		10375	free(input_type);
		10376	return COPY;
		10377	}
		10378	if( strcmp(input_type, copyresized) == 0 ){
		10379	free(input_type);
		10380	return COPYRESIZED;
		10381	}
		10382	if( strcmp(input_type, xlogscale) == 0 ){
		10383	free(input_type);
		10384	return XLOGSCALE;
		10385	}
		10386	if( strcmp(input_type, ylogscale) == 0 ){
		10387	free(input_type);
		10388	return YLOGSCALE;
		10389	}
		10390	if( strcmp(input_type, xylogscale) == 0 ){
		10391	free(input_type);
		10392	return XYLOGSCALE;
		10393	}
		10394	if( strcmp(input_type, ylogscale) == 0 ){
		10395	free(input_type);
		10396	return YLOGSCALE;
		10397	}
7735	schaersvoo	10398	if( strcmp(input_type, xlogbase) == 0 ){
7614	schaersvoo	10399	free(input_type);
7735	schaersvoo	10400	return XLOGBASE;
7614	schaersvoo	10401	}
7735	schaersvoo	10402	if( strcmp(input_type, ylogbase) == 0 ){
		10403	free(input_type);
		10404	return YLOGBASE;
		10405	}
7614	schaersvoo	10406	if( strcmp(input_type, intooltip) == 0 ){
		10407	free(input_type);
		10408	return INTOOLTIP;
		10409	}
9329	schaersvoo	10410	if( strcmp(input_type, popup) == 0 ){
		10411	free(input_type);
		10412	return POPUP;
		10413	}
7614	schaersvoo	10414	if( strcmp(input_type,video) == 0 ){
		10415	free(input_type);
		10416	return VIDEO;
		10417	}
11772	schaersvoo	10418	if( strcmp(input_type,fillall) == 0 ){
		10419	free(input_type);
		10420	return FILLALL;
		10421	}
7614	schaersvoo	10422	if( strcmp(input_type,floodfill) == 0 \|\| strcmp(input_type,fill) == 0 ){
		10423	free(input_type);
		10424	return FLOODFILL;
8224	bpr	10425	}
7614	schaersvoo	10426	if( strcmp(input_type,filltoborder) == 0 ){
		10427	free(input_type);
		10428	return FILLTOBORDER;
8224	bpr	10429	}
14038	schaersvoo	10430	if( strcmp(input_type, curvedarrow2) == 0 ){
		10431	free(input_type);
		10432	return CURVEDARROW2;
		10433	}
		10434	if( strcmp(input_type, curvedarrow) == 0 ){
		10435	free(input_type);
		10436	return CURVEDARROW;
		10437	}
		10438	if( strcmp(input_type, curvedarrows) == 0 ){
		10439	free(input_type);
		10440	return CURVEDARROWS;
		10441	}
		10442	if( strcmp(input_type, curvedarrows2) == 0 ){
		10443	free(input_type);
		10444	return CURVEDARROWS2;
		10445	}
7614	schaersvoo	10446	if( strcmp(input_type, replyformat) == 0 ){
		10447	free(input_type);
		10448	return REPLYFORMAT;
		10449	}
		10450	if( strcmp(input_type, pixelsize) == 0 ){
		10451	free(input_type);
		10452	return PIXELSIZE;
		10453	}
		10454	if( strcmp(input_type, setpixel) == 0 ){
		10455	free(input_type);
		10456	return SETPIXEL;
		10457	}
		10458	if( strcmp(input_type, pixels) == 0 ){
		10459	free(input_type);
		10460	return PIXELS;
		10461	}
		10462	if( strcmp(input_type, xaxis) == 0 \|\| strcmp(input_type, xaxistext) == 0 ){
		10463	free(input_type);
		10464	return X_AXIS_STRINGS;
		10465	}
9341	schaersvoo	10466	if( strcmp(input_type, xaxisup) == 0 \|\| strcmp(input_type, xaxistextup) == 0 ){
		10467	free(input_type);
		10468	return X_AXIS_STRINGS_UP;
		10469	}
7614	schaersvoo	10470	if( strcmp(input_type, yaxis) == 0 \|\| strcmp(input_type, yaxistext) == 0 ){
		10471	free(input_type);
		10472	return Y_AXIS_STRINGS;
		10473	}
		10474	if( strcmp(input_type, legend) == 0 ){
		10475	free(input_type);
		10476	return LEGEND;
		10477	}
		10478	if( strcmp(input_type, legendcolors) == 0 ){
		10479	free(input_type);
		10480	return LEGENDCOLORS;
		10481	}
		10482	if( strcmp(input_type, xlabel) == 0 ){
		10483	free(input_type);
		10484	return XLABEL;
		10485	}
		10486	if( strcmp(input_type, ylabel) == 0 ){
		10487	free(input_type);
		10488	return YLABEL;
		10489	}
8370	schaersvoo	10490	if( strcmp(input_type, bezier) == 0 ){
		10491	free(input_type);
		10492	return BEZIER;
		10493	}
7614	schaersvoo	10494	if( strcmp(input_type, animate) == 0 ){
		10495	free(input_type);
		10496	return ANIMATE;
		10497	}
9354	schaersvoo	10498	/* these are bitmap related flydraw commands...must be removed. eventually */
7614	schaersvoo	10499	if( strcmp(input_type, transparent) == 0 ){
		10500	free(input_type);
		10501	return TRANSPARENT;
		10502	}
7877	schaersvoo	10503	if( strcmp(input_type, status) == 0 \|\| strcmp(input_type, nostatus) == 0 ){
7614	schaersvoo	10504	free(input_type);
		10505	return STATUS;
		10506	}
7784	schaersvoo	10507	if( strcmp(input_type, xsnaptogrid) == 0 ){
		10508	free(input_type);
		10509	return XSNAPTOGRID;
		10510	}
		10511	if( strcmp(input_type, ysnaptogrid) == 0 ){
		10512	free(input_type);
		10513	return YSNAPTOGRID;
		10514	}
8379	schaersvoo	10515	if( strcmp(input_type, snaptogrid) == 0 ){
		10516	free(input_type);
		10517	return SNAPTOGRID;
		10518	}
		10519	if( strcmp(input_type, snaptopoints) == 0 ){
		10520	free(input_type);
		10521	return SNAPTOPOINTS;
		10522	}
9213	schaersvoo	10523	if( strcmp(input_type, snaptofunction) == 0 \|\| strcmp(input_type, snaptofun) == 0 ){
		10524	free(input_type);
		10525	return SNAPTOFUNCTION;
		10526	}
7652	schaersvoo	10527	if( strcmp(input_type, userinput_xy) == 0 ){
7614	schaersvoo	10528	free(input_type);
7652	schaersvoo	10529	return USERINPUT_XY;
		10530	}
8193	schaersvoo	10531	if( strcmp(input_type, userinput_function) == 0 ){
		10532	free(input_type);
		10533	return USERINPUT_FUNCTION;
		10534	}
7663	schaersvoo	10535	if( strcmp(input_type, usertextarea_xy) == 0 ){
		10536	free(input_type);
		10537	return USERTEXTAREA_XY;
		10538	}
8222	schaersvoo	10539	if( strcmp(input_type, userinput) == 0 ){
		10540	free(input_type);
		10541	return USERINPUT;
		10542	}
8105	schaersvoo	10543	if( strcmp(input_type, angle) == 0 ){
7996	schaersvoo	10544	free(input_type);
8105	schaersvoo	10545	return ANGLE;
		10546	}
8297	schaersvoo	10547	if( strcmp(input_type, functionlabel) == 0 ){
8244	schaersvoo	10548	free(input_type);
8297	schaersvoo	10549	return FUNCTION_LABEL;
		10550	}
9213	schaersvoo	10551	if( strcmp(input_type, sliderfunction_x) == 0 ){
8297	schaersvoo	10552	free(input_type);
9213	schaersvoo	10553	return SLIDER_X;
		10554	}
		10555	if( strcmp(input_type, sliderfunction_y) == 0 ){
		10556	free(input_type);
		10557	return SLIDER_Y;
		10558	}
		10559	if( strcmp(input_type, multidraw) == 0 ){
		10560	free(input_type);
		10561	return MULTIDRAW;
		10562	}
		10563	if( strcmp(input_type, multistrokeopacity) == 0 ){
		10564	free(input_type);
		10565	return MULTISTROKEOPACITY;
		10566	}
		10567	if( strcmp(input_type, multifillopacity) == 0 ){
		10568	free(input_type);
		10569	return MULTIFILLOPACITY;
		10570	}
		10571	if( strcmp(input_type, multilinewidth) == 0 ){
		10572	free(input_type);
		10573	return MULTILINEWIDTH;
		10574	}
		10575	if( strcmp(input_type, multistrokecolors) == 0 ){
		10576	free(input_type);
		10577	return MULTISTROKECOLORS;
		10578	}
		10579	if( strcmp(input_type, multifill) == 0 ){
		10580	free(input_type);
		10581	return MULTIFILL;
		10582	}
		10583	if( strcmp(input_type, multifillcolors) == 0 ){
		10584	free(input_type);
		10585	return MULTIFILLCOLORS;
		10586	}
		10587	if( strcmp(input_type, multilabel) == 0 ){
		10588	free(input_type);
		10589	return MULTILABEL;
		10590	}
		10591	if( strcmp(input_type, multidash) == 0 ){
		10592	free(input_type);
		10593	return MULTIDASH;
		10594	}
14038	schaersvoo	10595	if( strcmp(input_type, multisnaptogrid) == 0 \|\| strcmp(input_type, multisnap) == 0 ){
9213	schaersvoo	10596	free(input_type);
		10597	return MULTISNAPTOGRID;
		10598	}
14038	schaersvoo	10599	if( strcmp(input_type, multiuserinput) == 0 \|\| strcmp(input_type, multiinput) == 0 ){
9213	schaersvoo	10600	free(input_type);
		10601	return MULTIUSERINPUT;
		10602	}
9386	schaersvoo	10603	if( strcmp(input_type, parallel) == 0 ){
		10604	free(input_type);
		10605	return PARALLEL;
		10606	}
9289	schaersvoo	10607	if( strcmp(input_type, protractor) == 0 ){
		10608	free(input_type);
		10609	return PROTRACTOR;
		10610	}
		10611	if( strcmp(input_type, ruler) == 0 ){
		10612	free(input_type);
		10613	return RULER;
		10614	}
9386	schaersvoo	10615	if( strcmp(input_type, cursor) == 0 \|\| strcmp(input_type, pointer) == 0 ){
9213	schaersvoo	10616	free(input_type);
9386	schaersvoo	10617	return CURSOR;
		10618	}
		10619	if( strcmp(input_type, sgraph) == 0 ){
		10620	free(input_type);
		10621	return SGRAPH;
		10622	}
		10623	if( strcmp(input_type, jsmath) == 0 ){
		10624	free(input_type);
		10625	return JSMATH;
		10626	}
		10627	if( strcmp(input_type, trace_jscurve) == 0 ){
		10628	free(input_type);
		10629	return TRACE_JSCURVE;
		10630	}
		10631	if( strcmp(input_type, jscurve) == 0 \|\| strcmp(input_type, jsplot) == 0 ){
		10632	free(input_type);
		10633	return JSCURVE;
		10634	}
		10635	if( strcmp(input_type, centerstring) == 0 \|\| strcmp(input_type, title) == 0 ){
		10636	free(input_type);
		10637	return CENTERSTRING;
		10638	}
		10639	if( strcmp(input_type, setlimits) == 0 ){
		10640	free(input_type);
		10641	return SETLIMITS;
		10642	}
		10643	if( strcmp(input_type, xunit) == 0 ){
		10644	free(input_type);
		10645	return XUNIT;
		10646	}
		10647	if( strcmp(input_type, yunit) == 0 ){
		10648	free(input_type);
		10649	return YUNIT;
		10650	}
		10651	if( strcmp(input_type, fill) == 0 ){
		10652	free(input_type);
		10653	return FLOODFILL;
		10654	}
		10655	if( strcmp(input_type, end) == 0){
		10656	free(input_type);
		10657	return END;
		10658	}
		10659	if( strcmp(input_type, blink) == 0 ){
		10660	free(input_type);
		10661	return BLINK;
		10662	}
		10663	if( strcmp(input_type, audio) == 0 ){
		10664	free(input_type);
		10665	return AUDIO;
		10666	}
		10667	if( strcmp(input_type, audioobject) == 0 ){
		10668	free(input_type);
		10669	return AUDIOOBJECT;
		10670	}
		10671	if( strcmp(input_type, patternfill) == 0 ){
		10672	free(input_type);
		10673	return PATTERNFILL;
		10674	}
		10675	if( strcmp(input_type, hatchfill) == 0 ){
		10676	free(input_type);
		10677	return HATCHFILL;
		10678	}
		10679	if( strcmp(input_type, diafill) == 0 \|\| strcmp(input_type, diamondfill) == 0 ){
		10680	free(input_type);
		10681	return DIAMONDFILL;
		10682	}
		10683	if( strcmp(input_type, dotfill) == 0 ){
		10684	free(input_type);
		10685	return DOTFILL;
		10686	}
11830	schaersvoo	10687	if( strcmp(input_type, textfill) == 0 ){
		10688	free(input_type);
		10689	return TEXTFILL;
		10690	}
9386	schaersvoo	10691	if( strcmp(input_type, gridfill) == 0 ){
		10692	free(input_type);
		10693	return GRIDFILL;
		10694	}
		10695	if( strcmp(input_type, imagefill) == 0 ){
		10696	free(input_type);
		10697	return IMAGEFILL;
		10698	}
		10699	if( strcmp(input_type, clicktile_colors) == 0 ){
		10700	free(input_type);
		10701	return CLICKTILE_COLORS;
		10702	}
		10703	if( strcmp(input_type, clicktile) == 0 ){
		10704	free(input_type);
		10705	return CLICKTILE;
		10706	}
		10707	if( strcmp(input_type, piechart) == 0 ){
		10708	free(input_type);
		10709	return PIECHART;
		10710	}
9433	schaersvoo	10711	if( strcmp(input_type, boxplot) == 0 ){
		10712	free(input_type);
		10713	return BOXPLOT;
		10714	}
9465	schaersvoo	10715	if( strcmp(input_type, boxplotdata) == 0 ){
9433	schaersvoo	10716	free(input_type);
9465	schaersvoo	10717	return BOXPLOTDATA;
9433	schaersvoo	10718	}
9465	schaersvoo	10719	if( strcmp(input_type, userboxplot) == 0 ){
		10720	free(input_type);
		10721	return USERBOXPLOT;
		10722	}
		10723	if( strcmp(input_type, userboxplotdata) == 0 ){
		10724	free(input_type);
		10725	return USERBOXPLOT;
		10726	}
9386	schaersvoo	10727	if( strcmp(input_type, barchart) == 0 ){
		10728	free(input_type);
		10729	return BARCHART;
		10730	}
		10731	if( strcmp(input_type, linegraph) == 0 ){
		10732	free(input_type);
		10733	return LINEGRAPH;
		10734	}
		10735	if( strcmp(input_type, clock) == 0 ){
		10736	free(input_type);
		10737	return CLOCK;
		10738	}
9427	schaersvoo	10739	if( strcmp(input_type, yerrorbars) == 0 ){
9386	schaersvoo	10740	free(input_type);
9427	schaersvoo	10741	return YERRORBARS;
		10742	}
		10743	if( strcmp(input_type, xerrorbars) == 0 ){
		10744	free(input_type);
		10745	return XERRORBARS;
		10746	}
11006	schaersvoo	10747	if( strcmp(input_type, canvastype) == 0 ){
9427	schaersvoo	10748	free(input_type);
11006	schaersvoo	10749	return CANVASTYPE;
		10750	}
11044	schaersvoo	10751	if( strcmp(input_type, noyaxis) == 0 ){
11006	schaersvoo	10752	free(input_type);
11044	schaersvoo	10753	return NOYAXIS;
		10754	}
		10755	if( strcmp(input_type, noxaxis) == 0 ){
		10756	free(input_type);
		10757	return NOXAXIS;
		10758	}
11767	schaersvoo	10759	if( strcmp(input_type, colorpalette) == 0 ){
11044	schaersvoo	10760	free(input_type);
11767	schaersvoo	10761	return COLORPALETTE;
		10762	}
14038	schaersvoo	10763	if( strcmp(input_type, imagepalette) == 0 ){
		10764	free(input_type);
		10765	return IMAGEPALETTE;
		10766	}
11802	schaersvoo	10767	if( strcmp(input_type, resetoffset) == 0 ){
11767	schaersvoo	10768	free(input_type);
11802	schaersvoo	10769	return RESETOFFSET;
		10770	}
		10771	if( strcmp(input_type, xyoffset) == 0 ){
		10772	free(input_type);
		10773	return XYOFFSET;
		10774	}
12063	schaersvoo	10775	if( strcmp(input_type, centered) == 0 ){
11802	schaersvoo	10776	free(input_type);
12063	schaersvoo	10777	return CENTERED;
11802	schaersvoo	10778	}
12063	schaersvoo	10779	if( strcmp(input_type, yoffset) == 0 ){
11802	schaersvoo	10780	free(input_type);
11811	schaersvoo	10781	return YOFFSET;
		10782	}
12063	schaersvoo	10783	if( strcmp(input_type, xoffset) == 0 ){
		10784	free(input_type);
		10785	return XOFFSET;
		10786	}
11837	schaersvoo	10787	if( strcmp(input_type, fillpattern) == 0 ){
11811	schaersvoo	10788	free(input_type);
11837	schaersvoo	10789	return FILLPATTERN;
		10790	}
11890	schaersvoo	10791	if( strcmp(input_type, numberline) == 0 ){
11837	schaersvoo	10792	free(input_type);
11890	schaersvoo	10793	return NUMBERLINE;
		10794	}
		10795	free(input_type);
7614	schaersvoo	10796	ungetc(c,infile);
		10797	return 0;
		10798	}
14038	schaersvoo	10799
		10800
		10801
		10802
		10803
		10804
		10805
		10806
		10807
		10808
		10809
		10810
		10811

Subversion Repositories wimsdev

(root)/trunk/wims/src/Misc/canvasdraw/canvasdraw.c @ 17583 – Rev 14061