WebSVN – wimsdev – Blame – /trunk/wims/src/Flydraw/objects.c

Rev	Author	Line No.	Line
17676	bpr	1	/* Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis
10	reyssat	2	*
		3	* This program is free software; you can redistribute it and/or modify
		4	* it under the terms of the GNU General Public License as published by
		5	* the Free Software Foundation; either version 2 of the License, or
		6	* (at your option) any later version.
		7	*
		8	* This program is distributed in the hope that it will be useful,
		9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
		10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		11	* GNU General Public License for more details.
		12	*
		13	* You should have received a copy of the GNU General Public License
		14	* along with this program; if not, write to the Free Software
		15	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
		16	*/
8177	bpr	17
		18	#include <errno.h>
8102	bpr	19	#include "flydraw.h"
18350	bpr	20	void myGdImageArc(gdImagePtr, double, double, double, double, double, double, int);
18317	bpr	21	const double DEG=M_PI/180;
8177	bpr	22
17574	bpr	23	/* Tikz things */
17599	bpr	24
17608	bpr	25	static char *tikz_color (int the_color)
		26	{
		27	static char buf[50];
		28	int r=gdImageRed(image,the_color);
		29	int g=gdImageGreen(image,the_color);
		30	int b=gdImageBlue(image,the_color);
		31	sprintf(buf, "{rgb,255:red,%i;green,%i;blue,%i}",r,g,b);
		32	return buf;
		33	}
		34
17574	bpr	35	static char *tikz_options (int the_color, int the_fill)
		36	{
		37	static char buf[100];
		38	if (the_color == gdBrushed)
		39	the_color = tikz_brushColor;
17608	bpr	40	sprintf (buf, "draw=%s,cap=round",tikz_color(the_color));
17574	bpr	41	if (the_color != tikz_brushColor) strcat(buf, ",thin");
18125	bpr	42	if (the_fill == -1 \|\| the_fill == 2) strcat(buf, ",dashed");
		43	if (the_fill == 1 \|\| the_fill == 2)
17608	bpr	44	sprintf(buf+strlen(buf), ",fill=%s", tikz_color(the_color));
17574	bpr	45	return buf;
		46	}
		47
17662	bpr	48	#define flip(y) (sizey-1-(y))
17574	bpr	49
8010	bpr	50	/* bug in gdImageFillToBorder */
10	reyssat	51
8162	bpr	52	void patchgdImageFillToBorder (gdImagePtr im, int x, int y, int border, int color)
8076	bpr	53	{
12473	bpr	54	if(x>=im->sx \|\| x<0 \|\| y>=im->sy \|\| y<0) return;
		55	gdImageFillToBorder(im,x,y,border,color);
8076	bpr	56	}
		57
8162	bpr	58	void patchgdImageFill (gdImagePtr im, int x, int y, int color)
8156	bpr	59	{
12473	bpr	60	if(x>=im->sx \|\| x<0 \|\| y>=im->sy \|\| y<0) return;
		61	gdImageFill(im,x,y,color);
8156	bpr	62	}
8076	bpr	63
9651	georgesk	64	#define DASHPIXELS 8
		65
		66	void myDashedLine(gdImagePtr im, int x1, int y1, int x2, int y2, int color){
		67	/**
		68	* emulates gdImageDashedLine with gdImageSetStyle and gdImageLine
		69	* GK: As gdImageDashedLine is slightly broken in latest libgd libraries,
		70	* GK: I implemented an emulation named "myDashedLine"
		71	**/
		72
		73	int styleDashed[DASHPIXELS],i;
		74	for (i=0; i< DASHPIXELS/2; i++) styleDashed[i]=color;
		75	for (; i< DASHPIXELS; i++) styleDashed[i]=gdTransparent;
		76	gdImageSetStyle(im, styleDashed, DASHPIXELS);
		77	gdImageLine(im, x1, y1, x2, y2, gdStyled);
		78	}
		79
		80
7675	bpr	81	/* File opening: with security */
10	reyssat	82	FILE open4read(char n)
		83	{
12473	bpr	84	char p, p1, *p2, namebuf[2048];
		85	int t;
		86	FILE *f;
		87	n=find_word_start(n);
		88	if(*n==0) return NULL;
		89	p=getenv("flydraw_filebase");
		90	p1=n+strlen(n)-4;if(p1<n \|\| strcasecmp(p1,".gif")!=0) t=1; else t=0;
		91	if(p!=NULL && *p!=0) {
		92	char pbuf[MAX_LINELEN+1];
		93	snprintf(pbuf,sizeof(pbuf),"%s",p);
		94	p=find_word_start(pbuf); if(strstr(p,"..")!=NULL) return NULL;
		95	if(*n=='/' \|\| strstr(n,"..")!=NULL) return NULL;
		96	/* prohibit unusual file/dir names */
		97	for(p1=p;*p1;p1++)
		98	if(!isalnum(p1) && !isspace(p1) && strchr("~_-/.",*p1)==NULL)
		99	return NULL;
		100	for(p1=n;*p1;p1++)
		101	if(!isalnum(p1) && !isspace(p1) && strchr("~_-/.",*p1)==NULL)
		102	return NULL;
		103	f=NULL;
		104	for(p1=p; *p1; p1=find_word_start(p2)) {
		105	p2=find_word_end(p1);
		106	if(p2) p2++=0;
		107	snprintf(namebuf,sizeof(namebuf),"%s/%s",p1,n);
		108	f=fopen(namebuf,"r"); if(f!=NULL) goto imgtype;
10	reyssat	109	}
12473	bpr	110	p1=getenv("w_wims_session");
		111	if(p1!=NULL && strncmp(n,"insert",6)==0) {
		112	snprintf(namebuf,sizeof(namebuf),"../s2/%s/%s",p1,n);
7675	bpr	113	f=fopen(namebuf,"r");
10	reyssat	114	}
12473	bpr	115	}
		116	else {
		117	snprintf(namebuf,sizeof(namebuf),"%s",n);
		118	f=fopen(namebuf,"r");
		119	}
		120	imgtype:
		121	if(t && f!=NULL) {
		122	char tbuf[1024],sbuf[4096];
		123	fclose(f); f=NULL;
		124	p1=getenv("TMPDIR"); if(p1==NULL \|\| *p1==0) p1=".";
		125	snprintf(tbuf,sizeof(tbuf),"%s/drawfile_.gif",p1);
		126	snprintf(sbuf,sizeof(sbuf),"convert %s %s",namebuf,tbuf);
		127	if (system(sbuf)) fly_error("system_failed");
		128	f=fopen(tbuf,"r");
		129	}
		130	return f;
10	reyssat	131	}
		132
7675	bpr	133	/* Does nothing; just a comment. */
10	reyssat	134	void obj_comment(objparm *pm)
		135	{
12473	bpr	136	return;
10	reyssat	137	}
		138
7675	bpr	139	/* define image size */
10	reyssat	140	void obj_size(objparm *pm)
		141	{
12473	bpr	142	sizex=rint(pm->pd[0]); sizey=rint(pm->pd[1]);
		143	if(sizex<0 \|\| sizey<0 \|\| sizex>MAX_SIZE \|\| sizey>MAX_SIZE) {
		144	fly_error("bad_size"); return;
		145	}
		146	if(image!=NULL) {
		147	fly_error("size_already_defined"); return;
		148	}
		149	image=gdImageCreate(sizex,sizey);
17574	bpr	150	if(tikz_file) fprintf(tikz_file,"\\clip (0,0) rectangle (%i, %i);\n", sizex, sizey);
12473	bpr	151	if(image==NULL) fly_error("image_creation_failure");
		152	else {
		153	color_white=gdImageColorAllocate(image,255,255,255);
		154	color_black=gdImageColorAllocate(image,0,0,0);
		155	color_bounder=gdImageColorAllocate(image,1,2,3);
		156	color_frame=gdImageColorAllocate(image,254,254,254);
		157	}
10	reyssat	158	}
		159
7675	bpr	160	/* new image */
10	reyssat	161	void obj_new(objparm *pm)
		162	{
12473	bpr	163	if(image) {
		164	gdImageDestroy(image);image=NULL;
		165	}
		166	if(pm->pcnt>=2) { obj_size(pm); gdImageRectangle(image,0,0,sizex-1,sizey-1,color_frame);}
		167	else sizex=sizey=0;
		168	saved=0;
10	reyssat	169	}
		170
7675	bpr	171	/* new image */
10	reyssat	172	void obj_existing(objparm *pm)
		173	{
12473	bpr	174	FILE *inf;
		175	char *pp;
7615	bpr	176
12473	bpr	177	if(image) {
		178	gdImageDestroy(image);image=NULL;
		179	}
		180	pp=find_word_start(pm->str);*find_word_end(pp)=0;
		181	inf=open4read(pp);
		182	if(inf==NULL) {
		183	fly_error("file_not_exist"); return;
		184	}
		185	image=gdImageCreateFromGif(inf); fclose(inf);
		186	if(image==NULL) {
		187	fly_error("bad_gif"); return;
		188	}
		189	sizex=image->sx; sizey=image->sy;
		190	saved=0;
10	reyssat	191	}
18066	bpr	192	/* tikzfile */
		193	void obj_tikzfile(objparm *pm)
		194	{
		195	char *p;
		196	if(tikz_file){
		197	fprintf(tikz_file,"\\end{tikzpicture}\n");
		198	fclose(tikz_file);
		199	}
		200	p=find_word_start(pm->str); *find_word_end(p)=0;
		201	snprintf(tikzfilename,sizeof(tikzfilename),"%s",p);
		202	tikz_file=fopen(tikzfilename,"w");
		203	if(!tikz_file)
		204	fly_error("tikz_nopen");
		205	fprintf(tikz_file,"\\begin{tikzpicture}\[x=0.02cm, y=0.02cm]\n");
		206	}
10	reyssat	207
18123	bpr	208	/* segment */
10	reyssat	209	void obj_line(objparm *pm)
		210	{
12473	bpr	211	scale(pm->pd,pm->p,2);
18125	bpr	212	if(pm->fill==-1 \|\| pm->fill==2 )
18123	bpr	213	myDashedLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],pm->color[0]);
		214	else
		215	gdImageLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],pm->color[0]);
17574	bpr	216	if (tikz_file)
		217	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		218	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),pm->p[2],flip(pm->p[3]));
12473	bpr	219	if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]);
10	reyssat	220	}
		221
1024	bpr	222	void _obj_arrow(objparm *pm, int twoside)
10	reyssat	223	{
12473	bpr	224	int l,xx,yy;
		225	gdPoint ii[3];
		226	double dx,dy,length,dd[6];
		227	scale(pm->pd,pm->p,2);
		228	xx=ii[0].x=pm->p[2];yy=ii[0].y=pm->p[3];
		229	l=pm->pd[4];if(l<0) l=0; if(l>200) l=200;
		230	scale2(pm->pd[0]-pm->pd[2],pm->pd[1]-pm->pd[3],&dx,&dy);
		231	length=sqrt(dxdx+dydy);
		232	if(length<3 \|\| l<5) goto stem;
		233	dd[0]=ldx/length; dd[1]=ldy/length;
		234	#define fat 0.27
		235	dd[2]=dd[0]+dd[1]fat; dd[3]=dd[1]-dd[0]fat;
		236	dd[4]=dd[0]-dd[1]fat; dd[5]=dd[1]+dd[0]fat;
		237	ii[1].x=rint(dd[2])+ii[0].x; ii[1].y=rint(dd[3])+ii[0].y;
		238	ii[2].x=rint(dd[4])+ii[0].x; ii[2].y=rint(dd[5])+ii[0].y;
		239	gdImageFilledPolygon(image, ii,3,pm->color[0]);
17578	bpr	240	if(tikz_file)
		241	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
		242	tikz_options(pm->color[0],1),ii[0].x,flip(ii[0].y),ii[1].x,flip(ii[1].y),ii[2].x,flip(ii[2].y));
		243	if(vimg_enable) vimg_polyline(scale_buf,3,1);
12473	bpr	244	xx=rint(dd[0])+ii[0].x;yy=rint(dd[1])+ii[0].y;
		245	if(twoside) {
		246	ii[0].x=pm->p[0]; ii[0].y=pm->p[1];
		247	ii[1].x=-rint(dd[2])+ii[0].x; ii[1].y=-rint(dd[3])+ii[0].y;
		248	ii[2].x=-rint(dd[4])+ii[0].x; ii[2].y=-rint(dd[5])+ii[0].y;
8163	bpr	249	gdImageFilledPolygon(image, ii,3,pm->color[0]);
17578	bpr	250	if(tikz_file)
		251	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
		252	tikz_options(pm->color[0],1),ii[0].x,flip(ii[0].y),ii[1].x,flip(ii[1].y),ii[2].x,flip(ii[2].y));
12473	bpr	253	}
18125	bpr	254	stem: if(pm->fill==-1 \|\| pm->fill==2)
12473	bpr	255	myDashedLine(image,pm->p[0],pm->p[1],xx,yy,pm->color[0]);
		256	else
		257	gdImageLine(image,pm->p[0],pm->p[1],xx,yy,pm->color[0]);
17578	bpr	258	if(tikz_file)
		259	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
17584	bpr	260	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),xx,flip(yy));
12473	bpr	261	if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]);
10	reyssat	262	}
		263
7675	bpr	264	/* Arrow */
1024	bpr	265	void obj_arrow(objparm *pm)
		266	{
12473	bpr	267	_obj_arrow(pm,0);
1024	bpr	268	}
		269
7675	bpr	270	/* 2-sided arrow */
1024	bpr	271	void obj_arrow2(objparm *pm)
		272	{
12473	bpr	273	_obj_arrow(pm,1);
1024	bpr	274	}
		275
18047	bpr	276	void _obj_arrows(objparm *pm, int twoside)
		277	{
		278	#define fat 0.27
		279	int i,l,xx,yy;
		280	gdPoint ii[3];
		281	double dx,dy,length,dd[6];
		282	l=pm->pd[0];if(l<0) l=0; if(l>200) l=200;
		283	scale(pm->pd+1,pm->p+1,pm->pcnt/2);
		284	for (i=1;i<pm->pcnt;i+=4){
18119	bpr	285	xx=ii[0].x=pm->p[i+2];yy=ii[0].y=pm->p[i+3];
		286	scale2(pm->pd[i]-pm->pd[i+2],pm->pd[i+1]-pm->pd[i+3],&dx,&dy);
		287	length=sqrt(dxdx+dydy);
		288	if(length<3 \|\| l<5) goto stem;
		289	dd[0]=ldx/length; dd[1]=ldy/length;
		290	dd[2]=dd[0]+dd[1]fat; dd[3]=dd[1]-dd[0]fat;
		291	dd[4]=dd[0]-dd[1]fat; dd[5]=dd[1]+dd[0]fat;
		292	ii[1].x=rint(dd[2])+ii[0].x; ii[1].y=rint(dd[3])+ii[0].y;
		293	ii[2].x=rint(dd[4])+ii[0].x; ii[2].y=rint(dd[5])+ii[0].y;
		294	gdImageFilledPolygon(image, ii,3,pm->color[0]);
		295	if(tikz_file)
18065	bpr	296	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
		297	tikz_options(pm->color[0],1),ii[0].x,flip(ii[0].y),ii[1].x,flip(ii[1].y),ii[2].x,flip(ii[2].y));
		298	xx=rint(dd[0])+ii[0].x;yy=rint(dd[1])+ii[0].y;
		299	if(twoside) {
		300	ii[0].x=pm->p[i]; ii[0].y=pm->p[i+1];
		301	ii[1].x=-rint(dd[2])+ii[0].x; ii[1].y=-rint(dd[3])+ii[0].y;
		302	ii[2].x=-rint(dd[4])+ii[0].x; ii[2].y=-rint(dd[5])+ii[0].y;
		303	gdImageFilledPolygon(image, ii,3,pm->color[0]);
		304	if(tikz_file)
		305	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
		306	tikz_options(pm->color[0],1),ii[0].x,flip(ii[0].y),ii[1].x,flip(ii[1].y),ii[2].x,flip(ii[2].y));
18047	bpr	307	}
18125	bpr	308	stem: if(pm->fill==-1 \|\| pm->fill==2)
18065	bpr	309	myDashedLine(image,pm->p[i],pm->p[i+1],xx,yy,pm->color[0]);
		310	else
		311	gdImageLine(image,pm->p[i],pm->p[i+1],xx,yy,pm->color[0]);
		312	if(tikz_file)
		313	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		314	tikz_options(pm->color[0],pm->fill),pm->p[i],flip(pm->p[i+1]),xx,flip(yy));
		315	}
18047	bpr	316	}
		317
		318	/* Arrows */
		319	void obj_arrows(objparm *pm)
		320	{
		321	_obj_arrows(pm,0);
		322	}
		323
		324	/* 2-sided arrows */
		325	void obj_arrows2(objparm *pm)
		326	{
		327	_obj_arrows(pm,1);
		328	}
		329
7675	bpr	330	/* horizontal line */
10	reyssat	331	void obj_hline(objparm *pm)
		332	{
12473	bpr	333	scale(pm->pd,pm->p,1);
18125	bpr	334	if(pm->fill==-1 \|\| pm->fill==2)
12473	bpr	335	myDashedLine(image,0,pm->p[1],sizex,pm->p[1],pm->color[0]);
		336	else
		337	gdImageLine(image,0,pm->p[1],sizex,pm->p[1],pm->color[0]);
17574	bpr	338	if (tikz_file)
		339	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		340	tikz_options(pm->color[0],pm->fill),0,flip(pm->p[1]),sizex,flip(pm->p[1]));
10	reyssat	341	}
		342
18119	bpr	343	static void line_extend(int x1, int y1, int x2, int y2, int* xend, int *yend)
		344	{
		345	double t1, t2, t3;
		346	if (x2 != x1){t1 = (x2 > x1) ? sizex : 0; t1 = (t1 - x1)/(x2 - x1);}
		347	else t1 = INFINITY;
		348	if (y2 != y1){t2 = (y2 > y1) ? sizey : 0; t2 = (t2 - y1)/(y2 - y1);}
		349	else t2 = INFINITY;
		350	t3 = (t1 < t2) ? t1 : t2;
		351	xend = x1+t3(x2-x1);
		352	yend = y1+t3(y2-y1);
		353	}
18066	bpr	354
18065	bpr	355	/* halfline */
		356	void obj_halfline(objparm *pm)
		357	{
18119	bpr	358	int xend,yend;
18065	bpr	359	scale(pm->pd,pm->p,2);
18119	bpr	360	line_extend(pm->p[0],pm->p[1],pm->p[2],pm->p[3],&xend,&yend);
18125	bpr	361	if(pm->fill==-1 \|\| pm->fill==2)
18119	bpr	362	myDashedLine(image,pm->p[0],pm->p[1],xend,yend,pm->color[0]);
18065	bpr	363	else
18119	bpr	364	gdImageLine(image,pm->p[0],pm->p[1],xend,yend,pm->color[0]);
18065	bpr	365	if (tikz_file)
		366	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		367	tikz_options(pm->color[0],pm->fill),
18119	bpr	368	pm->p[0],flip(pm->p[1]),xend,flip(yend));
18065	bpr	369	}
17574	bpr	370
18119	bpr	371	void obj_fullline(objparm *pm)
		372	{
		373	int xstart,ystart,xend,yend;
		374	scale(pm->pd,pm->p,2);
		375	line_extend(pm->p[0],pm->p[1],pm->p[2],pm->p[3],&xend,&yend);
		376	line_extend(pm->p[2],pm->p[3],pm->p[0],pm->p[1],&xstart,&ystart);
18125	bpr	377	if(pm->fill==-1 \|\| pm->fill==2)
18119	bpr	378	myDashedLine(image,xstart,ystart,xend,yend,pm->color[0]);
		379	else
		380	gdImageLine(image,xstart,ystart,xend,yend,pm->color[0]);
		381	if (tikz_file)
		382	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		383	tikz_options(pm->color[0],pm->fill),xstart,flip(ystart),xend,flip(yend));
		384	}
		385
		386	void obj_fulllines(objparm *pm)
		387	{
		388	int i,xstart,ystart,xend,yend;
		389	scale(pm->pd,pm->p,pm->pcnt/2);
		390	if (tikz_file)
		391	fprintf(tikz_file, "\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
		392	for (i=0;i<pm->pcnt;i+=4){
		393	line_extend(pm->p[i],pm->p[i+1],pm->p[i+2],pm->p[i+3],&xend,&yend);
		394	line_extend(pm->p[i+2],pm->p[i+3],pm->p[i],pm->p[i+1],&xstart,&ystart);
18125	bpr	395	if(pm->fill==-1 \|\| pm->fill==2)
18119	bpr	396	myDashedLine(image,xstart,ystart,xend,yend,pm->color[0]);
		397	else
		398	gdImageLine(image,xstart,ystart,xend,yend,pm->color[0]);
		399	if (tikz_file)
		400	fprintf(tikz_file, "(%i,%i)--(%i, %i)",xstart,flip(ystart),xend,flip(yend));
		401	}
		402	if (tikz_file)
		403	fprintf(tikz_file, ";\n");
		404	}
		405
7675	bpr	406	/* vertical line */
10	reyssat	407	void obj_vline(objparm *pm)
		408	{
12473	bpr	409	scale(pm->pd,pm->p,1);
18125	bpr	410	if(pm->fill==-1 \|\| pm->fill==2)
12473	bpr	411	myDashedLine(image,pm->p[0],0,pm->p[0],sizey,pm->color[0]);
		412	else
		413	gdImageLine(image,pm->p[0],0,pm->p[0],sizey,pm->color[0]);
17574	bpr	414	if (tikz_file)
		415	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		416	tikz_options(pm->color[0],pm->fill),pm->p[0],0,pm->p[0],sizey);
10	reyssat	417	}
		418
7675	bpr	419	/* dashed line */
10	reyssat	420	void obj_dline(objparm *pm)
		421	{
12473	bpr	422	scale(pm->pd,pm->p,2);
		423	myDashedLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3], pm->color[0]);
17574	bpr	424	if (tikz_file)
		425	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		426	tikz_options(pm->color[0],-1),
		427	pm->p[0],flip(pm->p[1]),pm->p[2],flip(pm->p[3]));
10	reyssat	428	}
		429
7675	bpr	430	/* parallel lines.
		431	* x1,y1,x2,y2,xv,yv,n,color */
10	reyssat	432	void obj_parallel(objparm *pm)
		433	{
18123	bpr	434	int i, n, xi,yi;
		435	double xv,yv;
		436	n=pm->pd[6]; if(n<0) return; if(n>256) n=256;
		437	scale(pm->pd,pm->p,3);
		438	scale2(pm->pd[4],pm->pd[5],&xv,&yv);
		439	if (tikz_file)
		440	fprintf(tikz_file, "\\draw\[%s]", tikz_options(pm->color[0],pm->fill));
		441	for(i=0;i<n;i++) {
		442	xi=rint(ixv); yi=rint(iyv);
18125	bpr	443	if(pm->fill==-1 \|\| pm->fill==2)
18123	bpr	444	myDashedLine(image,pm->p[0]+xi,pm->p[1]+yi,pm->p[2]+xi,pm->p[3]+yi,
		445	pm->color[0]);
		446	else
		447	gdImageLine(image,pm->p[0]+xi,pm->p[1]+yi,pm->p[2]+xi,pm->p[3]+yi,
		448	pm->color[0]);
		449	if (tikz_file)
		450	fprintf(tikz_file, "(%i,%i)--(%i, %i)",
		451	pm->p[0]+xi,flip(pm->p[1]+yi),pm->p[2]+xi,flip(pm->p[3]+yi));
		452	if(vimg_enable) vimg_line(scale_buf[0]+i*(scale_buf[4]-transx),
		453	scale_buf[1]+i*(scale_buf[5]-transy),
		454	scale_buf[2]+i*(scale_buf[4]-transx),
		455	scale_buf[3]+i*(scale_buf[5]-transy));
		456	}
17914	bpr	457	if(tikz_file) fprintf(tikz_file,";\n");
10	reyssat	458	}
		459
7675	bpr	460	/* rectangle */
10	reyssat	461	void obj_rect(objparm *pm)
		462	{
12473	bpr	463	int x1,y1,x2,y2;
		464	scale(pm->pd,pm->p,2);
		465	x1=min(pm->p[0],pm->p[2]); x2=max(pm->p[0],pm->p[2]);
		466	y1=min(pm->p[1],pm->p[3]); y2=max(pm->p[1],pm->p[3]);
18140	bpr	467	if(pm->fill!=0){
		468	if(pm->fill==-1 \|\| pm->fill==2){
		469	myDashedLine(image,x1,y1,x1,y2,pm->color[0]);
		470	myDashedLine(image,x1,y2,x2,y2,pm->color[0]);
		471	myDashedLine(image,x2,y2,x2,y1,pm->color[0]);
		472	myDashedLine(image,x2,y1,x1,y1,pm->color[0]);
		473	}
		474	if(pm->fill==1 \|\| pm->fill==2)
		475	gdImageFilledRectangle(image,x1,y1,x2,y2,pm->color[0]);
		476	}
12473	bpr	477	else
		478	gdImageRectangle(image,x1,y1,x2,y2,pm->color[0]);
17584	bpr	479	if(tikz_file)
		480	fprintf(tikz_file,
		481	"\\draw\[%s] (%i,%i) rectangle (%i,%i);\n",
		482	tikz_options(pm->color[0],pm->fill),x1,flip(y1),x2,flip(y2));
12473	bpr	483	if(vimg_enable) vimg_rect(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]);
10	reyssat	484	}
		485
7675	bpr	486	/* square */
10	reyssat	487	void obj_square(objparm *pm)
		488	{
12473	bpr	489	int w,h;
		490	scale(pm->pd,pm->p,1);
		491	w=rint(pm->pd[2]); h=rint(pm->pd[2]);
18142	bpr	492	if(pm->fill!=0){
		493	if(pm->fill==-1 \|\| pm->fill==2){
		494	myDashedLine(image,pm->p[0],pm->p[1],pm->p[0]+w,pm->p[1],pm->color[0]);
		495	myDashedLine(image,pm->p[0]+w,pm->p[1],pm->p[0]+w,pm->p[1]+h,pm->color[0]);
		496	myDashedLine(image,pm->p[0]+w,pm->p[1]+h,pm->p[0],pm->p[1]+h,pm->color[0]);
		497	myDashedLine(image,pm->p[0],pm->p[1]+h,pm->p[0],pm->p[1],pm->color[0]);
		498	}
		499	if(pm->fill==1 \|\| pm->fill==2)
12473	bpr	500	gdImageFilledRectangle(image,pm->p[0],pm->p[1],
18123	bpr	501	pm->p[0]+w,pm->p[1]+h,pm->color[0]);
18142	bpr	502	}
12473	bpr	503	else
		504	gdImageRectangle(image,pm->p[0],pm->p[1],
		505	pm->p[0]+w,pm->p[1]+h,pm->color[0]);
17574	bpr	506	if(tikz_file){
		507	fprintf(tikz_file,
		508	"\\draw\[%s] (%i,%i) rectangle (%i,%i);\n",
		509	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),
		510	pm->p[0]+w,flip(pm->p[1]+h));
		511	}
12473	bpr	512	if(vimg_enable) vimg_rect(scale_buf[0],scale_buf[1],
		513	scale_buf[0]+pm->pd[2],scale_buf[1]+pm->pd[2]);
10	reyssat	514	}
		515
7675	bpr	516	/* triangle */
10	reyssat	517	void obj_triangle(objparm *pm)
		518	{
12473	bpr	519	scale(pm->pd,pm->p,3);
18131	bpr	520	int i,n=2;
		521	if(pm->fill!=0){
		522	if(pm->fill==-1 \|\| pm->fill==2){
		523	for(i=0;i<n;i+=1)
		524	myDashedLine(image,pm->p[2i],pm->p[2i+1],pm->p[2i+2],pm->p[2i+3],pm->color[0]);
		525	myDashedLine(image,pm->p[2n],pm->p[2n+1],pm->p[0],pm->p[1],pm->color[0]);
		526	}
		527	if(pm->fill==1 \|\| pm->fill==2)
		528	gdImageFilledPolygon(image,(gdPointPtr) pm->p,3,pm->color[0]);
		529	}
12473	bpr	530	else
		531	gdImagePolygon(image,(gdPointPtr) pm->p,3,pm->color[0]);
17574	bpr	532	if (tikz_file)
		533	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
		534	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),pm->p[2],flip(pm->p[3]),pm->p[4],flip(pm->p[5]));
12473	bpr	535	if(vimg_enable) vimg_polyline(scale_buf,3,1);
10	reyssat	536	}
		537
7675	bpr	538	/* polygon */
10	reyssat	539	void obj_poly(objparm *pm)
		540	{
17574	bpr	541	int cnt,i;
12473	bpr	542	cnt=(pm->pcnt)/2;
		543	scale(pm->pd,pm->p,cnt);
18125	bpr	544	if(pm->fill==1 \|\| pm->fill==2)
12473	bpr	545	gdImageFilledPolygon(image,(gdPointPtr) pm->p,cnt,pm->color[0]);
		546	else
		547	gdImagePolygon(image,(gdPointPtr) pm->p,cnt,pm->color[0]);
17614	bpr	548	if(tikz_file){
		549	fprintf(tikz_file,"\\draw\[%s] (%i,%i) --",tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]));
		550	for (i= 1; i<cnt; i++)
		551	fprintf(tikz_file,"(%i,%i)--", pm->p[2i],flip(pm->p[2i+1]));
		552	fprintf(tikz_file," cycle;\n");
		553	}
12473	bpr	554	if(vimg_enable) vimg_polyline(scale_buf,cnt,1);
10	reyssat	555	}
		556
7675	bpr	557	/* rays */
10	reyssat	558	void obj_rays(objparm *pm)
		559	{
12473	bpr	560	int i, n;
		561	n=(pm->pcnt)/2;
		562	scale(pm->pd,pm->p,n);
17920	bpr	563	if (tikz_file)
		564	fprintf(tikz_file, "\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
12473	bpr	565	for(i=2;i<2*n;i+=2) {
18125	bpr	566	if(pm->fill==-1 \|\| pm->fill==2)
18123	bpr	567	myDashedLine(image,pm->p[0],pm->p[1],pm->p[i],pm->p[i+1],pm->color[0]);
		568	else
		569	gdImageLine(image,pm->p[0],pm->p[1],pm->p[i],pm->p[i+1],pm->color[0]);
17574	bpr	570	if (tikz_file)
17920	bpr	571	fprintf(tikz_file, "(%i,%i) -- (%i,%i)",
		572	pm->p[0],flip(pm->p[1]),pm->p[i],flip(pm->p[i+1]));
12473	bpr	573	if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],
		574	scale_buf[i],scale_buf[i+1]);
		575	}
17920	bpr	576	if (tikz_file) fprintf(tikz_file,";\n");
10	reyssat	577	}
8414	bpr	578	/* crosshair */
		579	void obj_crosshair(objparm *pm)
		580	{
12473	bpr	581	scale(pm->pd,pm->p,2);
		582	gdImageLine(image,pm->p[0]+width2,pm->p[1]+width2,pm->p[0]-width2,pm->p[1]-width2,pm->color[0]);
		583	gdImageLine(image,pm->p[0]-width2,pm->p[1]+width2,pm->p[0]+width2,pm->p[1]-width2,pm->color[0]);
17574	bpr	584	if (tikz_file){
		585	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		586	tikz_options(pm->color[0],pm->fill),pm->p[0]+width2,flip(pm->p[1]+width2),pm->p[0]-width2,flip(pm->p[1]-width2));
		587	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		588	tikz_options(pm->color[0],pm->fill),pm->p[0]-width2,flip(pm->p[1]+width2),pm->p[0]+width2,flip(pm->p[1]-width2));
		589	}
8414	bpr	590	}
		591	/* crosshairs */
10	reyssat	592
8414	bpr	593	void obj_crosshairs(objparm *pm)
		594	{
12473	bpr	595	int i, n;
		596	n=(pm->pcnt)/2;
		597	scale(pm->pd,pm->p,n);
17921	bpr	598	if (tikz_file)
		599	fprintf(tikz_file, "\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
12473	bpr	600	for(i=0;i<2*n;i+=2) {
		601	gdImageLine(image,pm->p[i]+width2,pm->p[i+1]+width2,pm->p[i]-width2,pm->p[i+1]-width2,pm->color[0]);
		602	gdImageLine(image,pm->p[i]-width2,pm->p[i+1]+width2,pm->p[i]+width2,pm->p[i+1]-width2,pm->color[0]);
17574	bpr	603	if (tikz_file){
17921	bpr	604	fprintf(tikz_file, "(%i, %i) -- (%i, %i) ",
		605	pm->p[i]+width2,flip(pm->p[i+1]+width2),pm->p[i]-width2,flip(pm->p[i+1]-width2));
		606	fprintf(tikz_file, "(%i, %i) -- (%i, %i)",
		607	pm->p[i]-width2,flip(pm->p[i+1]+width2),pm->p[i]+width2,flip(pm->p[i+1]-width2));
17574	bpr	608	}
12473	bpr	609	}
17921	bpr	610	if (tikz_file) fprintf(tikz_file,";\n");
8414	bpr	611	}
		612
		613
7675	bpr	614	/* segments */
10	reyssat	615	void obj_lines(objparm *pm)
		616	{
17914	bpr	617	int i, n;
		618	n=(pm->pcnt)/2;
		619	scale(pm->pd,pm->p,n);
18123	bpr	620	if (tikz_file){
17914	bpr	621	fprintf(tikz_file,"\\draw\[%s] (%i,%i)",
		622	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]));
		623	for(i=2;i<2*n;i+=2)
		624	fprintf(tikz_file, "--(%i,%i)",pm->p[i],flip(pm->p[i+1]));
		625	fprintf(tikz_file, ";\n");
		626	}
		627	for(i=2;i<2*n;i+=2){
18125	bpr	628	if(pm->fill==-1 \|\| pm->fill==2 )
18123	bpr	629	myDashedLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]);
		630	else
		631	gdImageLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]);
17914	bpr	632	if(vimg_enable) vimg_polyline(scale_buf,n,0);
17574	bpr	633	}
10	reyssat	634	}
16344	bpr	635	/segments from x1,y1 to x2,y2, x3,y3 to x4,y4, etc /
		636	void obj_segments(objparm *pm)
		637	{
		638	int i, n;
18317	bpr	639	n=(pm->pcnt)/2;
		640	scale(pm->pd,pm->p,n);
17914	bpr	641	if (tikz_file)
		642	fprintf(tikz_file, "\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
18317	bpr	643	for(i=0;i<2*n;i+=4){
18125	bpr	644	if(pm->fill==-1 \|\| pm->fill==2)
18123	bpr	645	myDashedLine(image,pm->p[i],pm->p[i+1],pm->p[i+2],pm->p[i+3],pm->color[0]);
		646	else
		647	gdImageLine(image,pm->p[i],pm->p[i+1],pm->p[i+2],pm->p[i+3],pm->color[0]);
17914	bpr	648	if (tikz_file)
		649	fprintf(tikz_file, "(%i,%i)--(%i,%i)",
		650	pm->p[i],flip(pm->p[i+1]),pm->p[i+2],flip(pm->p[i+3]));
17574	bpr	651	}
17914	bpr	652	if(tikz_file) fprintf(tikz_file, ";\n");
16344	bpr	653	}
18325	bpr	654	/* for geodesics, return data for obj_hypgeods + a point on the arc
		655	to be used for filling hyperbolic triangle*/
		656	int hypgeodaux(double q, double res)
		657	{
		658	double r,cx,cy,a1,a2,a3,tmp,
		659	nx = -q[0]q[2]q[2]+(q[0]q[0]+q[1]q[1]+1)q[2]-q[0]q[3]*q[3]-q[0],
		660	ny = -q[1]q[2]q[2]-q[1]q[3]q[3]+(q[0]q[0]+q[1]q[1]+1)*q[3]-q[1],
		661	dy = -2q[1]q[2]+2q[0]q[3];
		662	if (dydy1e4 < nxnx+nyny){
		663	res[5]=(q[0]+q[2])/2;
		664	res[6]=(q[1]+q[3])/2;
		665	return 0;}
		666	cx = ny/dy; cy=-nx/dy;
		667	a1 = atan2(q[1]-cy, q[0]-cx);
		668	a2 = atan2(q[3]-cy, q[2]-cx);
18326	bpr	669	if (fabs(a2-a1)>M_PI){if(a1<a2) a1+=2M_PI; else a2+=2M_PI;};
18325	bpr	670	a3 = (a1+a2)/2;
		671	if(a1>a2) {tmp=a1; a1=a2; a2=tmp;}
		672	r = sqrt(cxcx+cycy-1);
		673	res[0]=cx;
		674	res[1]=cy;
		675	res[2]=r;
		676	res[3]=a1;
		677	res[4]=a2;
		678	res[5]=cx+r*cos(a3);
		679	res[6]=cy+r*sin(a3);
		680	return 1;
		681	}
18317	bpr	682	/* hyperbolic geodesics from x1,y1 to x2,y2, x3,y3 to x4,y4 in Poincar� disk */
		683
		684	void obj_hypgeods(objparm *pm)
		685	{
18325	bpr	686	int i, *qq=pm->p;
		687	double rx,ry,res[7];
		688	for (i = 0; i < pm->pcnt; i+=4)
		689	if (hypgeodaux(pm->pd+i,res)){
		690	scale2(res[2],res[2],&rx,&ry);
		691	scale(res,qq,1);
		692	myGdImageArc(image,qq[0],qq[1],rx,ry,res[3]/DEG,res[4]/DEG,pm->color[0]);
		693	}
18317	bpr	694	else {
18325	bpr	695	scale(pm->pd+i,qq,2);
		696	gdImageLine(image,qq[0],qq[1],qq[2],qq[3],pm->color[0]);
18317	bpr	697	}
18325	bpr	698	}
		699	/* hyperbolique triangle, can be filled */
		700	void obj_hyptriangle(objparm *pm)
		701	{
		702	double rx,ry,data[8],res[7];
		703	int i, *qq=pm->p;
		704	for(i=0; i<8; i++) data[i]=pm->pd[i%6];
		705	for(i=0; i<3; i++)
		706	if(hypgeodaux(data+2*i,res)) {
		707	scale2(res[2],res[2],&rx,&ry);
		708	scale(res,qq,1);
		709	myGdImageArc(image,qq[0],qq[1],rx,ry,res[3]/DEG,res[4]/DEG,pm->color[0]);
		710	}
		711	else {
		712	scale(data+2*i,qq,2);
		713	gdImageLine(image,qq[0],qq[1],qq[2],qq[3],pm->color[0]);
		714	}
		715	if(pm->fill){
		716	data[0]=res[5];
		717	data[1]=res[6];
		718	hypgeodaux(data,res);
		719	scale(res+5,qq,1);
		720	patchgdImageFill(image,qq[0],qq[1],pm->color[0]);
18317	bpr	721	}
		722	}
18351	bpr	723	/* complete hyperbolic geodesic through two points */
18325	bpr	724	void obj_hyplines(objparm *pm)
		725	{
18351	bpr	726	double rx,ry,res[7],*pd = pm->pd;
18325	bpr	727	int i;
18351	bpr	728	for (i=0; i < pm->pcnt; i+=4,pd+=4)
		729	if (hypgeodaux(pd,res)) {
		730	double alpha=atan(1/res[2]), beta = atan2(res[1],res[0]);
		731	scale(res,pm->p,1);
18325	bpr	732	scale2(res[2],res[2],&rx,&ry);
18326	bpr	733	myGdImageArc(image,pm->p[0],pm->p[1],rx,ry,180+(beta-alpha)/DEG,180+(beta+alpha)/DEG,pm->color[0]);
18325	bpr	734	}
		735	else {
18351	bpr	736	double gamma;
		737	if (pd[1]pd[1]+pd[0]pd[0] > pd[2]pd[2]+pd[3]pd[3])
		738	gamma = atan2(pd[1],pd[0]);
		739	else
		740	gamma = atan2(pd[3],pd[2]);
18325	bpr	741	res[0]=cos(gamma);
		742	res[1]=sin(gamma);
		743	res[2]=-cos(gamma);
		744	res[3]=-sin(gamma);
		745	scale(res,pm->p,2);
		746	gdImageLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],pm->color[0]);
		747	}
		748	}
7675	bpr	749	/* segments */
10	reyssat	750	void obj_dlines(objparm *pm)
		751	{
17914	bpr	752	int i, n;
		753	n=(pm->pcnt)/2;
		754	scale(pm->pd,pm->p,n);
18123	bpr	755	if (tikz_file){
17914	bpr	756	fprintf(tikz_file,"\\draw\[%s] (%i,%i)",
		757	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]));
		758	for(i=2;i<2*n;i+=2)
		759	fprintf(tikz_file, "--(%i,%i)",pm->p[i],flip(pm->p[i+1]));
		760	fprintf(tikz_file, ";\n");
		761	}
		762	for(i=2;i<2*n;i+=2)
		763	myDashedLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]);
		764	if(vimg_enable) vimg_polyline(scale_buf,n,0);
10	reyssat	765	}
		766
7675	bpr	767	/* points */
10	reyssat	768	void obj_points(objparm *pm)
		769	{
17914	bpr	770	int i, n;
		771	n=(pm->pcnt)/2;
		772	scale(pm->pd,pm->p,n);
		773	for(i=0;i<2*n;i+=2) gdImageSetPixel(image,pm->p[i],pm->p[i+1],pm->color[0]);
		774	if(tikz_file) {
		775	fprintf(tikz_file, "\\draw\[%s]", tikz_options(pm->color[0],pm->fill));
		776	for(i=0;i<2*n;i+=2)
		777	fprintf(tikz_file,"(%i,%i)circle(1pt)",pm->p[i],flip(pm->p[i+1]));
		778	fprintf(tikz_file,";\n");
		779	}
10	reyssat	780	}
		781
7675	bpr	782	/* lattice.
		783	* x0,y0,xv1,yv1,xv2,yv2,n1,n2,color */
10	reyssat	784	void obj_lattice(objparm *pm)
		785	{
17914	bpr	786	int n1,n2,i1,i2,xi1,yi1,xi2,yi2;
		787	double xv1,xv2,yv1,yv2;
		788	n1=pm->pd[6];n2=pm->pd[7]; if(n1<0 \|\| n2<0) return;
		789	if(n1>256) n1=256;
		790	if(n2>256) n2=256;
		791	scale(pm->pd,pm->p,1);
		792	scale2(pm->pd[2],pm->pd[3],&xv1,&yv1);
		793	scale2(pm->pd[4],pm->pd[5],&xv2,&yv2);
		794	if(tikz_file)
		795	fprintf(tikz_file,"\\draw[%s]", tikz_options(pm->color[0],0));
		796	for(i1=0;i1<n1;i1++) {
		797	xi1=rint(i1xv1)+pm->p[0]; yi1=rint(i1yv1)+pm->p[1];
		798	for(i2=0;i2<n2;i2++) {
		799	xi2=i2xv2+xi1;yi2=i2yv2+yi1;
		800	gdImageSetPixel(image,xi2,yi2,pm->color[0]);
		801	if(tikz_file) fprintf(tikz_file,"(%i,%i)circle(1pt)",xi2,flip(yi2));
		802	}
		803	}
		804	if(tikz_file) fprintf(tikz_file,";\n");
10	reyssat	805	}
		806
7675	bpr	807	/* arc */
18317	bpr	808	/trouble with gdImageArc as the angles are of type int /
18350	bpr	809	void myGdImageArc(gdImagePtr im, double cx, double cy, double rx, double ry, double t1, double t2, int color)
10	reyssat	810	{
18308	bpr	811	int i,nb;
18317	bpr	812	double dt, r=rx>ry?rx:ry;
18308	bpr	813	t2-=t1;
18317	bpr	814	t2-=360*floor(t2/360);
18325	bpr	815	if(t2==0) t2=360;
18317	bpr	816	t1=DEG;t2=DEG;
18308	bpr	817	nb = r*t2/3;
		818	dt = t2/nb;
		819	for (i=0; i<nb; ++i,t1+=dt)
18350	bpr	820	gdImageLine(im,rint(cx+rxcos(t1)),rint(cy+rysin(t1)),
		821	rint(cx+rxcos(t1+dt)),rint(cy+rysin(t1+dt)),color);
18317	bpr	822	}
		823
		824	void obj_arc(objparm *pm)
		825	{
		826	scale(pm->pd,pm->p,1);
		827	int rx=pm->pd[2]xscale/2, ry=pm->pd[3]yscale/2;
		828	myGdImageArc(image, pm->p[0], pm->p[1], rx, ry, pm->pd[4],pm->pd[5],pm->color[0]);
		829	if(tikz_file){
		830	pm->pd[5]-=pm->pd[4];
		831	pm->pd[5]-=360*floor(pm->pd[5]/360);
		832	pm->pd[5]+=pm->pd[4];
17914	bpr	833	fprintf(tikz_file,
18317	bpr	834	/* "\\draw\[%s, domain=%f:%f] plot ({%i+%fcos(\\x)}, {%i+%fsin(\\x)});\n",*/
		835	"\\draw \[%s] (%i,%i) arc (%f:%f:%i and %i);\n",
		836	tikz_options(pm->color[0],pm->fill),
		837	(int)rint(pm->p[0]+rxcos(DEGpm->pd[4])),
		838	flip((int)rint(pm->p[1]+rysin(DEGpm->pd[4]))),
		839	pm->pd[4],pm->pd[5],rx,-ry);
17574	bpr	840	}
		841	/FIXME echelle mauvaise/
12473	bpr	842	if(vimg_enable) vimg_arc(scale_buf[0],scale_buf[1],
		843	0.5pm->pd[2],0.5pm->pd[3],pm->pd[4],pm->pd[5]);
10	reyssat	844	}
		845
17676	bpr	846	void obj_angle(objparm *pm)
		847	{
18320	bpr	848	/* dans la doc: mettre les angles dans l'ordre ???? demander qu'ils soient entre 0 et 360 */
17676	bpr	849	double dpts[6];
		850	int pts[6], wx=rint(2pm->pd[2]xscale), wy=rint(2pm->pd[2]yscale);
		851	dpts[0]=pm->pd[0];
		852	dpts[1]=pm->pd[1];
		853	dpts[2]=pm->pd[0]+pm->pd[2]cos(DEGpm->pd[3]);
		854	dpts[3]=pm->pd[1]+pm->pd[2]sin(DEGpm->pd[3]);
		855	dpts[4]=pm->pd[0]+pm->pd[2]cos(DEGpm->pd[4]);
		856	dpts[5]=pm->pd[1]+pm->pd[2]sin(DEGpm->pd[4]);
		857	scale(dpts, pts, 3);
18350	bpr	858	gdImageLine(image,pts[0],pts[1],pts[2],pts[3],pm->color[0]);
		859	gdImageLine(image,pts[0],pts[1],pts[4],pts[5],pm->color[0]);
18308	bpr	860	gdImageArc(image,pts[0],pts[1],wx,wy,pm->pd[3],pm->pd[4],pm->color[0]);
17676	bpr	861	if(tikz_file) {
		862	fprintf(tikz_file, "\\draw\[%s, domain=%f:%f] plot ({%i+%fcos(\\x)}, {%i+%fsin(\\x)});\n",
		863	tikz_options(pm->color[0],pm->fill),pm->pd[3],pm->pd[4],pts[0],wx0.5,flip(pts[1]),wy(-0.5));
17950	bpr	864	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) (%i, %i) -- (%i, %i);\n",
		865	tikz_options(pm->color[0],pm->fill),pts[0],flip(pts[1]),pts[2],flip(pts[3]),pts[0],flip(pts[1]),pts[4],flip(pts[5]));
17676	bpr	866	}
		867	}
7675	bpr	868	/* Ellipse: centre 0,1, width 2, hight 3, color 4,5,6 */
10	reyssat	869	void obj_ellipse(objparm *pm)
		870	{
12473	bpr	871	scale(pm->pd,pm->p,1);
17676	bpr	872	pm->p[2]=pm->pd[2]xscale; pm->p[3]=pm->pd[3]yscale;
18125	bpr	873	if(pm->fill==1 \|\| pm->fill==2) {
12473	bpr	874	gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,
		875	color_bounder);
		876	patchgdImageFillToBorder(image,pm->p[0],pm->p[1],
		877	color_bounder,pm->color[0]);
		878	}
17676	bpr	879	gdImageArc(image,pm->p[0],pm->p[1],rint(pm->p[2]),rint(pm->p[3]),0,360,pm->color[0]);
		880	if(tikz_file) fprintf(tikz_file,"\\draw\[%s] (%i,%i) ellipse (%i and %i);\n\n",
17912	bpr	881	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),(int) rint(0.5pm->p[2]),(int) rint(0.5pm->p[3]));
17574	bpr	882	if(vimg_enable) vimg_ellipse(scale_buf[0],scale_buf[1],0.5pm->pd[2],0.5pm->pd[3]);
10	reyssat	883	}
		884
17656	bpr	885	/* Circle radius in pixels*/
10	reyssat	886	void obj_circle(objparm *pm)
		887	{
12473	bpr	888	scale(pm->pd,pm->p,1);
		889	pm->p[2]=rint(pm->pd[2]); pm->p[3]=rint(pm->pd[2]);
18125	bpr	890	if(pm->fill==1 \|\| pm->fill==2) {
12473	bpr	891	gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,
		892	color_bounder);
		893	patchgdImageFillToBorder(image,pm->p[0],pm->p[1],
		894	color_bounder,pm->color[0]);
		895	}
		896	gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,pm->color[0]);
17676	bpr	897	if(tikz_file) fprintf(tikz_file, "\\draw\[%s] (%i, %i) circle (%i);\n",
		898	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),(int) rint(pm->pd[2]/2.));
10	reyssat	899	}
17656	bpr	900	/* Circle, radius in xrange */
		901	void obj_circles(objparm *pm)
		902	{
		903	int i, n;
		904	n=(pm->pcnt)/3;
		905	for (i=0; i<n; ++i) scale(pm->pd+3i, pm->p+3i, 1);
17942	bpr	906	if (tikz_file) fprintf(tikz_file,"\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
17656	bpr	907	for(i=0;i<3*n;i+=3){
18125	bpr	908	if(pm->fill==1 \|\| pm->fill==2) {
18118	bpr	909	gdImageArc(image,pm->p[i],pm->p[i+1],
		910	rint(2pm->pd[i+2]xscale),rint(2pm->pd[i+2]xscale),0,360,
		911	color_bounder);
		912	patchgdImageFillToBorder(image,pm->p[i],pm->p[i+1],
		913	color_bounder,pm->color[0]);
		914	}
17656	bpr	915	gdImageArc(image,pm->p[i],pm->p[i+1],
18118	bpr	916	rint(2pm->pd[i+2]xscale),rint(2pm->pd[i+2]xscale),0,360,pm->color[0]);
17656	bpr	917	if (tikz_file){
17942	bpr	918	fprintf(tikz_file, "(%i, %i) circle (%i and %i)",
		919	pm->p[i],flip(pm->p[i+1]),(int) rint(pm->pd[i+2]xscale),(int) rint(pm->pd[i+2]xscale));
17656	bpr	920	}
		921	}
17942	bpr	922	if (tikz_file) fprintf(tikz_file,";\n");
17656	bpr	923	}
17676	bpr	924	/* ellipse, width in xrange,height in yrange */
17656	bpr	925	void obj_ellipses(objparm *pm)
		926	{
		927	int i, n;
		928	n=(pm->pcnt)/4;
		929	for (i=0; i<n; ++i) scale(pm->pd+4i, pm->p+4i, 1);
17943	bpr	930	if (tikz_file) fprintf(tikz_file,"\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
17656	bpr	931	for(i=0;i<4*n;i+=4){
18125	bpr	932	if(pm->fill==1 \|\| pm->fill==2){
18123	bpr	933	gdImageArc(image,pm->p[i],pm->p[i+1],
		934	rint(pm->pd[i+2]xscale),rint(pm->pd[i+2]xscale),0,360,
		935	color_bounder);
		936	patchgdImageFillToBorder(image,pm->p[i],pm->p[i+1],
		937	color_bounder,pm->color[0]);
		938	} else
		939	gdImageArc(image,pm->p[i],pm->p[i+1],rint(pm->pd[i+2]xscale),rint(pm->pd[i+3]yscale),0,360,pm->color[0]);
17656	bpr	940	if (tikz_file){
17943	bpr	941	fprintf(tikz_file, "(%i, %i) circle (%i and %i)",
		942	pm->p[i],flip(pm->p[i+1]),(int) rint(pm->pd[i+2]xscale/2),(int) rint(pm->pd[i+3]yscale/2));
17656	bpr	943	}
		944	}
17943	bpr	945	if (tikz_file) fprintf(tikz_file,";\n");
17656	bpr	946	}
17940	bpr	947	typedef enum tikz_fill_options {grid, dot, hatch, diamond} tfo;
17599	bpr	948	int compar(const void a, const void b) {return (int )b - (int )a;}
		949
17662	bpr	950	static void tikz_fill(int x, int y, int nx, int ny, int wall, int the_color, tfo opt)
17599	bpr	951	{
17662	bpr	952	int numpix=sizex*sizey, top = 0, a, c, cy, lx=0, rx=0, seed, nt,ct=0;
17599	bpr	953	int stack = xmalloc(numpixsizeof(int));
		954	int stack2 = xmalloc(numpixsizeof(int));
18132	bpr	955	if (nx==0) nx=1;
		956	if (ny==0) ny=1;
		957	nt = abs(nx*ny);
17599	bpr	958	seed = gdImageGetPixel(image,x,y);
		959	char *check = xmalloc(numpix);
		960	while (numpix--) check[numpix]=0;
		961	a=x+y*sizex;
		962	check[a]=1;
		963	stack[top++]=a;
		964	while(top)
		965	{
		966	a = stack[--top];
		967	x = a%sizex; y = a/sizex;
17662	bpr	968	c = gdImageGetPixel(image,x,y);
		969	if ((wall && (c == wall))\|\|(!wall && c!=seed))
		970	continue;
17599	bpr	971	if (x>0 && !check[a-1]) {check[a-1]=1; stack[top++]=a-1;}
		972	if (x+1<sizex && !check[a+1]) {check[a+1]=1; stack[top++]=a+1;}
		973	if (y>0 && !check[a-sizex]) {check[a-sizex]=1; stack[top++]=a-sizex;}
		974	if (y+1<sizey && !check[a+sizex]) {check[a+sizex]=1; stack[top++]=a+sizex;}
		975	switch(opt)
17621	bpr	976	{
17940	bpr	977	case grid: if(((x%nx)!=(nx/2))&&((y%ny)!=(ny/2))) continue; break;
		978	case dot: if(x%nx!=nx/2\|\|y%ny!=ny/2) continue; break;
17939	bpr	979	case hatch: if((nyx-nxy+nt)%nt) continue; break;
17940	bpr	980	case diamond: if((nyx+nxy)%nt && (nyx-nxy+nt)%nt)continue;
17621	bpr	981	default: break;
		982	}
17599	bpr	983	stack2[ct++]=a;
		984	}
		985	free(stack);
		986	free(check);
		987	if (ct==0) return;
17938	bpr	988	fprintf(tikz_file,"\\draw\[%s]", tikz_options(the_color,1));
17599	bpr	989	qsort(stack2, ct, sizeof(int), compar);
		990	cy=-1;
		991	while (ct--)
		992	{
		993	a = stack2[ct];
		994	x = a%sizex; y = a/sizex;
		995	if (y != cy \|\| x != rx+1)
		996	{
17621	bpr	997	if (cy >= 0)
		998	fprintf(tikz_file,
17933	bpr	999	"(%.2f,%.2f)rectangle(%.2f,%.2f)",
		1000	lx-0.0,flip(cy-0.0),rx+0.0,flip(cy+0.0));
17621	bpr	1001	cy = y;
		1002	lx = rx = x;
17599	bpr	1003	}
		1004	else
17621	bpr	1005	rx++;
17599	bpr	1006	}
		1007	fprintf(tikz_file,
17933	bpr	1008	"(%.2f,%.2f)rectangle(%.2f,%.2f);\n",
		1009	lx-0.0,flip(cy-0.0),rx+0.0,flip(cy+0.0));
17599	bpr	1010	free(stack2);
		1011	}
18125	bpr	1012	void obj_dashed(objparm *pm){ dashed=1;}
		1013	void obj_filled(objparm *pm){ filled=1;}
18159	bpr	1014	void obj_noreset(objparm *pm){ noreset=1;}
		1015	void obj_reset(objparm *pm){ noreset=0;dashed=0;filled=0;}
17599	bpr	1016
7675	bpr	1017	/* flood fill */
10	reyssat	1018	void obj_fill(objparm *pm)
		1019	{
12473	bpr	1020	scale(pm->pd,pm->p,1);
17940	bpr	1021	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],1,1,0,pm->color[0],grid);
12473	bpr	1022	patchgdImageFill(image,pm->p[0],pm->p[1],pm->color[0]);
10	reyssat	1023	}
		1024
7675	bpr	1025	/* flood fill to border*/
10	reyssat	1026	void obj_fillb(objparm *pm)
		1027	{
12473	bpr	1028	scale(pm->pd,pm->p,1);
17940	bpr	1029	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],1,1,pm->color[0],pm->color[1],grid);
12473	bpr	1030	patchgdImageFillToBorder(image,pm->p[0],pm->p[1],pm->color[0],pm->color[1]);
10	reyssat	1031	}
		1032
		1033	gdImagePtr himg;
		1034
		1035	int makehatchimage(int x, int y, int px, int py, int col)
		1036	{
12473	bpr	1037	int c1,c2,r,g,b;
		1038	gdImagePtr saveimg;
		1039	himg=gdImageCreate(x,y);
		1040	c1=gdImageGetPixel(image,px,py);
		1041	r=gdImageRed(image,c1); g=gdImageGreen(image,c1); b=gdImageBlue(image,c1);
		1042	if(r>=255) r--; else r++; if(g>=255) g--; else g++; if(b>=255) b--; else b++;
		1043	c1=gdImageColorAllocate(himg,r,g,b);
		1044	r=gdImageRed(image,col); g=gdImageGreen(image,col); b=gdImageBlue(image,col);
		1045	c2=gdImageColorAllocate(himg,r,g,b);
		1046	if(width>1) {
		1047	savew=-1; saveimg=image;
		1048	image=himg; c2=widthcolor(width,c2); image=saveimg;
		1049	c2=gdBrushed; savew=-1;
		1050	}
		1051	return c2;
10	reyssat	1052	}
		1053
7675	bpr	1054	/* flood fill with hatching */
10	reyssat	1055	void obj_hatchfill(objparm *pm)
		1056	{
12473	bpr	1057	int nx,ny,ax,ay, dir, c;
		1058	scale(pm->pd,pm->p,1);
		1059	nx=pm->pd[2]; ny=pm->pd[3]; ax=abs(nx); ay=abs(ny);
		1060	if(nx==0 && ny==0) {fly_error("bad displacement vector"); return;}
		1061	if((nx>0 && ny>0) \|\| (nx<0 && ny<0)) dir=1; else dir=-1;
		1062	if(ax==0) {ax=100; dir=2;}
		1063	if(ay==0) {ay=100; dir=3;}
		1064	c=makehatchimage(ax,ay,pm->p[0],pm->p[1],pm->color[0]);
		1065	switch(dir) {
		1066	case -1: {
		1067	gdImageLine(himg,0,ay-1,ax-1,0,c);
		1068	if(width>1) {
		1069	gdImageLine(himg,-ax,ay-1,-1,0,c);
		1070	gdImageLine(himg,ax,ay-1,2*ax-1,0,c);
		1071	gdImageLine(himg,0,-1,ax-1,-ay,c);
		1072	gdImageLine(himg,0,2*ay-1,ax-1,ay,c);
7675	bpr	1073	}
12473	bpr	1074	break;
		1075	}
		1076	case 1: {
		1077	gdImageLine(himg,0,0,ax-1,ay-1,c);
		1078	if(width>1) {
		1079	gdImageLine(himg,-ax,0,-1,ay-1,c);
		1080	gdImageLine(himg,ax,0,2*ax-1,ay-1,c);
		1081	gdImageLine(himg,0,-ay,ax-1,-1,c);
		1082	gdImageLine(himg,0,ay,ax-1,2*ay-1,c);
7675	bpr	1083	}
12473	bpr	1084	break;
		1085	}
		1086	case 2: gdImageLine(himg,0,ay/2,ax-1,ay/2,c); break;
17574	bpr	1087	case 3: gdImageLine(himg,ax/2,0,ax/2,ay-1,c); break;
12473	bpr	1088	}
17662	bpr	1089	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,0,pm->color[0],hatch);
12473	bpr	1090	gdImageSetTile(image,himg);
		1091	patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
		1092	gdImageDestroy(himg);
		1093	if(tiled) gdImageSetTile(image,tileimg);
10	reyssat	1094	}
		1095
7675	bpr	1096	/* flood fill with grid */
10	reyssat	1097	void obj_gridfill(objparm *pm)
		1098	{
12473	bpr	1099	int nx,ny, c;
		1100	scale(pm->pd,pm->p,1);
		1101	nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny);
		1102	if(nx==0 && ny==0) {fly_error("bad grid size"); return;}
		1103	c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]);
17940	bpr	1104	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,0,pm->color[0],grid);
12473	bpr	1105	gdImageLine(himg,0,ny/2,nx-1,ny/2,c); gdImageLine(himg,nx/2,0,nx/2,ny-1,c);
		1106	gdImageSetTile(image,himg);
		1107	patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
		1108	gdImageDestroy(himg);
		1109	if(tiled) gdImageSetTile(image,tileimg);
10	reyssat	1110	}
		1111
7675	bpr	1112	/* flood fill with double hatching */
10	reyssat	1113	void obj_diafill(objparm *pm)
		1114	{
12473	bpr	1115	int nx,ny, c;
		1116	scale(pm->pd,pm->p,1);
		1117	nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny);
		1118	if(nx==0 && ny==0) {fly_error("bad grid size"); return;}
		1119	c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]);
17940	bpr	1120	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,0,pm->color[0],diamond);
12473	bpr	1121	gdImageLine(himg,0,0,nx-1,ny-1,c); gdImageLine(himg,0,ny-1,nx-1,0,c);
		1122	gdImageSetTile(image,himg);
		1123	patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
		1124	gdImageDestroy(himg);
		1125	if(tiled) gdImageSetTile(image,tileimg);
10	reyssat	1126	}
		1127
17599	bpr	1128	/* flood fill with dots */
10	reyssat	1129	void obj_dotfill(objparm *pm)
		1130	{
12473	bpr	1131	int nx,ny, c;
		1132	scale(pm->pd,pm->p,1);
		1133	nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny);
		1134	if(nx==0 && ny==0) {fly_error("bad grid size"); return;}
		1135	c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]);
17940	bpr	1136	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,0,pm->color[0],dot);
12473	bpr	1137	gdImageSetPixel(himg,nx/2,ny/2,c);
		1138	gdImageSetTile(image,himg);
		1139	patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
		1140	gdImageDestroy(himg);
		1141	if(tiled) gdImageSetTile(image,tileimg);
10	reyssat	1142	}
		1143
		1144	struct {
12473	bpr	1145	char *name;
		1146	gdFontPtr *fpt;
17964	bpr	1147	char *ftikz;
10	reyssat	1148	} fonttab[]={
17964	bpr	1149	{"tiny", &gdFontTiny,"0.3"},
		1150	{"small", &gdFontSmall,"0.5"},
		1151	{"medium",&gdFontMediumBold,"0.7"},
		1152	{"large", &gdFontLarge,"0.9"},
		1153	{"giant", &gdFontGiant,"1"},
		1154	{"huge", &gdFontGiant,"1"}
10	reyssat	1155	};
		1156
		1157	#define fonttab_no (sizeof(fonttab)/sizeof(fonttab[0]))
		1158
7675	bpr	1159	/* string */
10	reyssat	1160	void obj_string(objparm *pm)
		1161	{
12473	bpr	1162	char pp, pe, *p2;
		1163	int i;
		1164	pp=pm->str; pe=strchr(pp,','); if(pe==NULL) {
		1165	fly_error("too_few_parms"); return;
		1166	}
		1167	pe++=0; pp=find_word_start(pp); find_word_end(pp)=0;
		1168	pe=find_word_start(pe); strip_trailing_spaces(pe);
		1169	if(*pp) {
		1170	for(i=0;i<fonttab_no && strcmp(pp,fonttab[i].name)!=0; i++);
		1171	if(i>=fonttab_no) i=1;
		1172	}
		1173	else i=1;
		1174	scale(pm->pd,pm->p,1);
		1175	if(*pe=='"') {
		1176	p2=strchr(pe+1,'"');
		1177	if(p2 && (p2+1)==0) {p2=0; pe++;}
		1178	}
17585	bpr	1179	if(pm->fill){
12473	bpr	1180	gdImageStringUp(image,(fonttab[i].fpt),pm->p[0],pm->p[1], (unsigned char) pe,
		1181	pm->color[0]);
17964	bpr	1182	if(tikz_file) fprintf(tikz_file,"\\draw (%i,%i) node[scale=%s,rotate=90,color=%s,anchor=north west,inner sep=0pt] {\\(%s\\)};\n",
		1183	pm->p[0],flip(pm->p[1]),fonttab[i].ftikz,tikz_color(pm->color[0]),(unsigned char*) pe);
17585	bpr	1184	}
		1185	else {
12473	bpr	1186	gdImageString(image,(fonttab[i].fpt),pm->p[0],pm->p[1], (unsigned char) pe,
		1187	pm->color[0]);
17964	bpr	1188	if(tikz_file) fprintf(tikz_file,"\\draw (%i,%i) node[scale=%s,color=%s,anchor=north west,inner sep=0pt] {\\(%s\\)};\n",
		1189	pm->p[0],flip(pm->p[1]),fonttab[i].ftikz,tikz_color(pm->color[0]),(unsigned char*) pe);
17585	bpr	1190	}
10	reyssat	1191	}
17585	bpr	1192	/FIXME; giant does not exist in tikz and ... samething as huge /
7675	bpr	1193	/* point */
10	reyssat	1194	void obj_point(objparm *pm)
		1195	{
12473	bpr	1196	scale(pm->pd,pm->p,1);
		1197	gdImageSetPixel(image,pm->p[0],pm->p[1],pm->color[0]);
17917	bpr	1198	if(tikz_file) fprintf(tikz_file,"\\draw[%s] (%i,%i) circle (1pt);\n",
17574	bpr	1199	tikz_options(pm->color[0],0),pm->p[0],flip(pm->p[1]));
10	reyssat	1200	}
		1201
7675	bpr	1202	/* copy an image file */
10	reyssat	1203	void obj_copy(objparm *pm)
		1204	{
12473	bpr	1205	char *pp;
		1206	FILE *inf;
		1207	gdImagePtr insimg;
7615	bpr	1208
12473	bpr	1209	pp=find_word_start(pm->str);*find_word_end(pp)=0;
		1210	inf=open4read(pp);
		1211	if(inf==NULL) {
17599	bpr	1212	fly_error("file_does_not_exist"); return;
12473	bpr	1213	}
		1214	insimg=gdImageCreateFromGif(inf); fclose(inf);
		1215	if(insimg==NULL) {
		1216	fly_error("bad_gif"); return;
		1217	}
		1218	scale(pm->pd,pm->p,1);
		1219	if(pm->pd[2]<0 && pm->pd[3]<0 && pm->pd[4]<0 && pm->pd[5]<0)
		1220	gdImageCopy(image,insimg,pm->p[0],pm->p[1],0,0,
		1221	insimg->sx,insimg->sy);
		1222	else
		1223	gdImageCopy(image,insimg,pm->p[0],pm->p[1],pm->pd[2],pm->pd[3],
		1224	pm->pd[4]-pm->pd[2],pm->pd[5]-pm->pd[3]);
17587	bpr	1225	if(tikz_file) fprintf(tikz_file,
17618	bpr	1226	"\\node[anchor=north west,inner sep=0pt] at (%i,%i) {\\includegraphics\[width=.05\\linewidth]{%s}};\n",
17587	bpr	1227	pm->p[0],flip(pm->p[1]),pm->str);
		1228	gdImageDestroy(insimg);
		1229	/FIXME position non correcte; on ne peut pas utiliser une image gif /
10	reyssat	1230	}
		1231
7675	bpr	1232	/* copy an image file, with resizing */
10	reyssat	1233	void obj_copyresize(objparm *pm)
		1234	{
12473	bpr	1235	char *pp;
		1236	FILE *inf;
		1237	gdImagePtr insimg;
7615	bpr	1238
12473	bpr	1239	pp=find_word_start(pm->str);*find_word_end(pp)=0;
		1240	inf=open4read(pp);
		1241	if(inf==NULL) {
		1242	fly_error("file_not_found"); return;
		1243	}
		1244	insimg=gdImageCreateFromGif(inf); fclose(inf);
		1245	if(insimg==NULL) {
		1246	fly_error("bad_gif"); return;
		1247	}
		1248	scale(pm->pd+4,pm->p+4,2);
		1249	if(pm->pd[0]<0 && pm->pd[1]<0 && pm->pd[2]<0 && pm->pd[3]<0)
		1250	gdImageCopyResized(image,insimg,pm->p[4],pm->p[5],0,0,
		1251	pm->p[6]-pm->p[4]+1,pm->p[7]-pm->p[5]+1,
		1252	insimg->sx,insimg->sy);
		1253	else
		1254	gdImageCopyResized(image,insimg,pm->p[4],pm->p[5],pm->pd[0],pm->pd[1],
		1255	pm->p[6]-pm->p[4]+1,pm->p[7]-pm->p[5]+1,
		1256	pm->pd[2]-pm->pd[0]+1,pm->pd[3]-pm->pd[1]+1);
		1257	gdImageDestroy(insimg);
10	reyssat	1258	}
		1259
7675	bpr	1260	/* set brush or tile */
10	reyssat	1261	void obj_setbrush(objparm *pm)
		1262	{
12473	bpr	1263	char *pp;
		1264	FILE *inf;
		1265	gdImagePtr insimg;
10	reyssat	1266
12473	bpr	1267	pp=find_word_start(pm->str); *find_word_end(pp)=0;
		1268	inf=open4read(pp); if(inf==NULL) {
		1269	fly_error("file_not_found"); return;
		1270	}
		1271	insimg=gdImageCreateFromGif(inf); fclose(inf);
		1272	if(insimg==NULL) {
		1273	fly_error("bad_gif"); return;
		1274	}
		1275	if(pm->fill) {
		1276	gdImageSetTile(image,insimg); tiled=1; tileimg=insimg;
		1277	}
		1278	else {
		1279	gdImageSetBrush(image,insimg);brushed=1; brushimg=insimg;
		1280	}
10	reyssat	1281	}
		1282
7675	bpr	1283	/* kill brush */
10	reyssat	1284	void obj_killbrush(objparm *pm)
		1285	{
12473	bpr	1286	if(brushimg) gdImageDestroy(brushimg);
		1287	brushed=0; brushimg=NULL;
10	reyssat	1288	}
		1289
7675	bpr	1290	/* kill tile */
10	reyssat	1291	void obj_killtile(objparm *pm)
		1292	{
12473	bpr	1293	if(tileimg) gdImageDestroy(tileimg);
		1294	tiled=0; tileimg=NULL;
10	reyssat	1295	}
		1296
7675	bpr	1297	/* set style */
10	reyssat	1298	void obj_setstyle(objparm *pm)
		1299	{
12473	bpr	1300	int i,t;
		1301	t=pm->pcnt/3; if(t<=0) {
		1302	fly_error("too_few_parms"); return;
		1303	}
		1304	for(i=0;i<t;i++) {
		1305	if(pm->pd[3i]<0 \|\| pm->pd[3i+1]<0 \|\| pm->pd[3*i+2]<0)
		1306	pm->p[i]=gdTransparent;
		1307	else
		1308	pm->p[i]=getcolor(pm->pd[3i],pm->pd[3i+1],pm->pd[3*i+2]);
		1309	}
		1310	gdImageSetStyle(image,pm->p,t); styled=1;
10	reyssat	1311	}
		1312
7675	bpr	1313	/* kill style */
10	reyssat	1314	void obj_killstyle(objparm *pm)
		1315	{
12473	bpr	1316	styled=0;
10	reyssat	1317	}
		1318
7675	bpr	1319	/* set transparent */
10	reyssat	1320	void obj_transp(objparm *pm)
		1321	{
12473	bpr	1322	gdImageColorTransparent(image,pm->color[0]);
10	reyssat	1323	}
		1324
7675	bpr	1325	/* set interlace */
10	reyssat	1326	void obj_interlace(objparm *pm)
		1327	{
12473	bpr	1328	gdImageInterlace(image,1);
10	reyssat	1329	}
		1330
7675	bpr	1331	/* set linewidth */
10	reyssat	1332	void obj_linewidth(objparm *pm)
		1333	{
12473	bpr	1334	if(pm->pd[0]<1 \|\| pm->pd[0]>255) fly_error("bad_parms");
17574	bpr	1335	width=pm->pd[0];
17612	bpr	1336	if(tikz_file) fprintf(tikz_file,"\\pgfsetlinewidth{%fpt}\n",width*0.7);
10	reyssat	1337	}
		1338
8414	bpr	1339	/* set crosshairsize */
		1340	void obj_crosshairsize(objparm *pm)
		1341	{
12473	bpr	1342	if(pm->pd[0]<1 \|\| pm->pd[0]>255) fly_error("bad_parms");
		1343	else width2=pm->pd[0];
8414	bpr	1344	}
		1345
7675	bpr	1346	/* set x range */
10	reyssat	1347	void obj_xrange(objparm *pm)
		1348	{
12473	bpr	1349	double dd;
		1350	dd=pm->pd[1]-pm->pd[0];
		1351	xstart=pm->pd[0]; xscale=sizex/dd;
10	reyssat	1352	}
		1353
7675	bpr	1354	/* set y range */
10	reyssat	1355	void obj_yrange(objparm *pm)
		1356	{
12473	bpr	1357	double dd;
		1358	dd=pm->pd[1]-pm->pd[0];
		1359	ystart=pm->pd[1]; yscale=-sizey/dd;
10	reyssat	1360	}
		1361
7675	bpr	1362	/* set x et y range */
10	reyssat	1363	void obj_range(objparm *pm)
		1364	{
12473	bpr	1365	double d1,d2;
		1366	d1=pm->pd[1]-pm->pd[0]; d2=pm->pd[3]-pm->pd[2];
		1367	xstart=pm->pd[0]; xscale=(sizex-1)/d1;
		1368	ystart=pm->pd[3]; yscale=-(sizey-1)/d2;
10	reyssat	1369	}
		1370
7675	bpr	1371	/* set t range */
10	reyssat	1372	void obj_trange(objparm *pm)
		1373	{
12473	bpr	1374	/*double dd;
		1375	dd=pm->pd[1]-pm->pd[0];*/
		1376	tstart=pm->pd[0]; tend=pm->pd[1];
		1377	tranged=1;
10	reyssat	1378	}
		1379
7675	bpr	1380	/* set tstep (plotting step) */
10	reyssat	1381	void obj_tstep(objparm *pm)
		1382	{
12473	bpr	1383	int dd;
		1384	dd=pm->pd[0];
		1385	if(dd<3) {
		1386	fly_error("bad_step"); return;
		1387	}
		1388	if(dd>2000) dd=2000;
		1389	tstep=dd;
10	reyssat	1390	}
		1391
7675	bpr	1392	/* set plotjump (plot jump break threashold) */
10	reyssat	1393	void obj_plotjump(objparm *pm)
		1394	{
12473	bpr	1395	int dd;
		1396	dd=pm->pd[0];
		1397	if(dd<3) dd=3;
		1398	if(dd>MAX_SIZE) dd=MAX_SIZE;
		1399	plotjump=dd;
10	reyssat	1400	}
		1401
7675	bpr	1402	/* plot a curve, either parametric or explicit */
6578	bpr	1403	void _obj_plot(objparm *pm,int dash)
10	reyssat	1404	{
12473	bpr	1405	int i,j,n,dist,xx,yy,varpos;
		1406	char p1[MAX_LINELEN+1], p2[MAX_LINELEN+1];
		1407	char varn, pp;
		1408	double dc[2],t,v;
		1409	int ic[2],oc[2];
10	reyssat	1410
12473	bpr	1411	n=itemnum(pm->str);
		1412	if(n<1) {
		1413	fly_error("bad_parms"); return;
		1414	}
		1415	fnd_item(pm->str,1,p1); fnd_item(pm->str,2,p2);
		1416	if(n==1 && !tranged) v=sizex/xscale/tstep;
		1417	else v=(tend-tstart)/tstep;
		1418	if(n==1) varn="x"; else varn="t";
		1419	for(pp=varchr(p1,varn); pp; pp=varchr(pp,varn)) {
		1420	string_modify(p1,pp,pp+strlen(varn),EV_T);
		1421	pp+=strlen(EV_T);
		1422	}
		1423	for(pp=varchr(p2,varn); pp; pp=varchr(pp,varn)) {
		1424	string_modify(p2,pp,pp+strlen(varn),EV_T);
7675	bpr	1425	pp+=strlen(EV_T);
12473	bpr	1426	}
		1427	varpos=eval_getpos(EV_T);
		1428	if(varpos<0) return; /* unknown error */
		1429	evalue_compile(p1); evalue_compile(p2);
		1430	if(vimg_enable) vimg_plotstart();
17933	bpr	1431	if (tikz_file) fprintf(tikz_file,"\%\%begin plot\n\\draw\[%s]",
		1432	tikz_options(pm->color[0],-dash));
12473	bpr	1433	for(i=j=0;i<=tstep;i++) {
		1434	if(n==1) {
		1435	if(tranged) t=tstart+iv; else t=xstart+iv;
		1436	eval_setval(varpos,t); dc[0]=t; dc[1]=strevalue(p1);
10	reyssat	1437	}
17621	bpr	1438	else {
		1439	t=tstart+i*v; eval_setval(varpos,t);
		1440	dc[0]=strevalue(p1); dc[1]=strevalue(p2);
10	reyssat	1441	}
17621	bpr	1442	if(!isfinite(dc[0]) \|\| !isfinite(dc[1])) ic[0]=ic[1]=-BOUND;
		1443	else scale(dc,ic,1);
		1444	if(vimg_enable) vimg_plot1 (scale_buf[0],scale_buf[1]);
18019	bpr	1445	if(j==0) {
		1446	gdImageSetPixel(image,ic[0],ic[1],pm->color[0]); j++;
		1447	if (tikz_file)
		1448	fprintf(tikz_file,"(%i,%i)rectangle(%i,%i)",
		1449	ic[0],flip(ic[1]),ic[0]+1,flip(ic[1]+1));
		1450	}
		1451	else {
		1452	xx=ic[0]-oc[0]; yy=ic[1]-oc[1];
		1453	dist=sqrt(xxxx+yyyy);
		1454	if(dist>0){
		1455	if(dist>plotjump \|\| dist==1) {
		1456	gdImageSetPixel(image,ic[0],ic[1],pm->color[0]);
		1457	if (tikz_file)
		1458	fprintf(tikz_file,"(%i,%i)rectangle(%i,%i)",
		1459	ic[0],flip(ic[1]),ic[0]+1,flip(ic[1]+1));
		1460	}
		1461	else {
		1462	if (dash==1)
18105	georgesk	1463	myDashedLine(image,oc[0],oc[1],ic[0],ic[1],pm->color[0]);
18019	bpr	1464	else
		1465	gdImageLine(image,oc[0],oc[1],ic[0],ic[1],pm->color[0]);
		1466	if (tikz_file)
		1467	fprintf(tikz_file, "(%i,%i)--(%i,%i)",
17932	bpr	1468	oc[0],flip(oc[1]),ic[0],flip(ic[1]));
18019	bpr	1469	}
17621	bpr	1470	}
		1471	}
18019	bpr	1472	memmove(oc,ic,sizeof(oc));
12473	bpr	1473	}
17932	bpr	1474	if (tikz_file) fprintf(tikz_file,";\n\%\%end plot\n");
12473	bpr	1475	if(vimg_enable) vimg_plotend();
10	reyssat	1476	}
		1477
6578	bpr	1478	void obj_plot(objparm *pm) { _obj_plot( pm,0) ;}
		1479	void obj_dplot(objparm *pm) { _obj_plot( pm,1) ; }
		1480
7675	bpr	1481	/* set levelcurve granularity */
10	reyssat	1482	void obj_levelstep(objparm *pm)
		1483	{
12473	bpr	1484	int dd;
		1485	dd=pm->pd[0];
		1486	if(dd<1) return;
		1487	if(dd>16) dd=16;
		1488	lstep=dd;
10	reyssat	1489	}
		1490
7675	bpr	1491	/* level curve */
10	reyssat	1492	void obj_levelcurve(objparm *pm)
		1493	{
12473	bpr	1494	char fn[MAX_LINELEN+1],tc[MAX_LINELEN+1];
		1495	int n,i;
		1496	double d;
		1497	leveldata *ld;
7615	bpr	1498
12473	bpr	1499	ld=xmalloc(sizeof(leveldata)+16);
		1500	ld->xname="x"; ld->yname="y";
		1501	ld->xsize=sizex; ld->ysize=sizey; ld->datacnt=0;
		1502	ld->xrange[0]=xstart; ld->xrange[1]=sizex/xscale+xstart;
		1503	ld->yrange[0]=sizey/yscale+ystart; ld->yrange[1]=ystart;
		1504	ld->grain=lstep;
		1505	fnd_item(pm->str,1,fn); ld->fn=fn;
		1506	n=itemnum(pm->str);
		1507	if(n<=1) {ld->levelcnt=1; ld->levels[0]=0;}
		1508	else {
		1509	if(n>LEVEL_LIM+1) n=LEVEL_LIM+1;
		1510	for(i=0;i<n-1;i++) {
		1511	fnd_item(pm->str,i+2,tc);
		1512	d=strevalue(tc);
		1513	if(isfinite(d)) ld->levels[i]=d; else ld->levels[i]=0;
10	reyssat	1514	}
12473	bpr	1515	ld->levelcnt=n-1;
		1516	}
		1517	levelcurve(ld);
17932	bpr	1518	if (tikz_file)
		1519	fprintf(tikz_file,"\%\%begin levelcurve\n\\draw\[%s]"
18065	bpr	1520	,tikz_options(pm->color[0],1));
12473	bpr	1521	for(i=0;i<ld->datacnt;i++) {
		1522	gdImageSetPixel(image,ld->xdata[i],ld->ydata[i],pm->color[0]);
17584	bpr	1523	if (tikz_file)
		1524	fprintf(tikz_file,
17933	bpr	1525	"(%i,%i)rectangle(%i,%i)",
		1526	ld->xdata[i],flip(ld->ydata[i]),ld->xdata[i]+1,flip(ld->ydata[i]+1));
12473	bpr	1527	}
17932	bpr	1528	if (tikz_file) fprintf(tikz_file,";\n\%\%end levelcurve\n");
12473	bpr	1529	free(ld);
10	reyssat	1530	}
		1531
7675	bpr	1532	/* set animation step */
10	reyssat	1533	void obj_animstep(objparm *pm)
		1534	{
12473	bpr	1535	animstep=pm->pd[0];
		1536	setvar("animstep",pm->pd[0]);
10	reyssat	1537	}
		1538
7675	bpr	1539	/* Starts a line counting */
10	reyssat	1540	void obj_linecount(objparm *pm)
		1541	{
12473	bpr	1542	linecnt=pm->pd[0];
10	reyssat	1543	}
		1544
7675	bpr	1545	/* marks end of execution */
10	reyssat	1546	void obj_end(objparm *pm)
		1547	{
12473	bpr	1548	fly_error("successful_end_of_execution");
10	reyssat	1549	}
		1550
7675	bpr	1551	/* output */
10	reyssat	1552	void obj_output(objparm *pm)
		1553	{
12473	bpr	1554	char *p, namebuf[1024];
		1555	p=find_word_start(pm->str); *find_word_end(p)=0;
		1556	snprintf(namebuf,sizeof(namebuf),"%s",imagefilename);
		1557	snprintf(imagefilename,sizeof(imagefilename),"%s",p);
		1558	output();
		1559	snprintf(imagefilename,sizeof(imagefilename),"%s",namebuf);
10	reyssat	1560	}
		1561
7675	bpr	1562	/* vimgfile */
1024	bpr	1563	void obj_vimgfile(objparm *pm)
		1564	{
12473	bpr	1565	char *p;
		1566	p=find_word_start(pm->str); *find_word_end(p)=0;
		1567	snprintf(vimgfilename,sizeof(vimgfilename),"%s",p);
		1568	if(vimg_ready) vimg_close();
1024	bpr	1569	}
		1570
7675	bpr	1571	/* vimg enable/disable */
1024	bpr	1572	void obj_vimg(objparm *pm)
		1573	{
12473	bpr	1574	vimg_enable=pm->pd[0];
		1575	if(vimg_enable>0 && vimg_ready==0) vimg_init();
1024	bpr	1576	}
		1577
7675	bpr	1578	/* Set affine transformation */
10	reyssat	1579	void obj_affine(objparm *pm)
		1580	{
12473	bpr	1581	int i;
		1582	for(i=0;i<4;i++) matrix[i]=pm->pd[i];
		1583	transx=pm->pd[4]; transy=pm->pd[5];
		1584	transform=1;
10	reyssat	1585	}
		1586
7675	bpr	1587	/* Set affine transformation */
10	reyssat	1588	void obj_rotation(objparm *pm)
		1589	{
12473	bpr	1590	double r;
		1591	r=M_PI*pm->pd[0]/180;
		1592	matrix[0]=matrix[3]=cos(r);
		1593	matrix[1]=-sin(r); matrix[2]=sin(r);
		1594	transform=1;
10	reyssat	1595	}
		1596
8419	bpr	1597	/* Set linear transformation */
10	reyssat	1598	void obj_linear(objparm *pm)
		1599	{
12473	bpr	1600	int i;
		1601	for(i=0;i<4;i++) matrix[i]=pm->pd[i];
		1602	transform=1;
10	reyssat	1603	}
		1604
8419	bpr	1605	/* Set translation transformation */
10	reyssat	1606	void obj_translation(objparm *pm)
		1607	{
12473	bpr	1608	transx=pm->pd[0]; transy=pm->pd[1];
10	reyssat	1609	}
		1610
8419	bpr	1611	/* kill affine transformation */
10	reyssat	1612	void obj_killaffine(objparm *pm)
		1613	{
12473	bpr	1614	matrix[0]=matrix[3]=1;
		1615	matrix[1]=matrix[2]=transx=transy=0;
		1616	transform=0;
10	reyssat	1617	}
		1618
8419	bpr	1619	/* kill affine transformation */
10	reyssat	1620	void obj_killlinear(objparm *pm)
		1621	{
12473	bpr	1622	matrix[0]=matrix[3]=1;
		1623	matrix[1]=matrix[2]=0;
		1624	transform=0;
10	reyssat	1625	}
		1626
8419	bpr	1627	/* kill affine transformation */
10	reyssat	1628	void obj_killtranslation(objparm *pm)
		1629	{
12473	bpr	1630	transx=transy=0;
10	reyssat	1631	}
		1632
		1633	/*** Les modifs de Jean-Christophe Leger Fev 2006 ***/
		1634
7615	bpr	1635	/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES, une liste de 4 nombres reels pour la matrice */
10	reyssat	1636	void obj_setmatrix(objparm *pm)
		1637	{
		1638	int nummatrix = (int) (pm->pd[0]);
		1639	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1640	fly_error("bad_matrix_number");
10	reyssat	1641	return;
		1642	}
		1643	matrices_pavage[nummatrix][0] = pm->pd[1];
		1644	matrices_pavage[nummatrix][1] = pm->pd[2];
		1645	matrices_pavage[nummatrix][2] = pm->pd[3];
		1646	matrices_pavage[nummatrix][3] = pm->pd[4];
		1647	}
		1648
7615	bpr	1649	/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */
10	reyssat	1650	void obj_resetmatrix(objparm *pm)
		1651	{
		1652	int nummatrix = (int) (pm->pd[0]);
		1653	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1654	fly_error("bad_matrix_number");
10	reyssat	1655	return;
		1656	}
		1657	matrices_pavage[nummatrix][0] = 1;
		1658	matrices_pavage[nummatrix][1] = 0;
		1659	matrices_pavage[nummatrix][2] = 0;
		1660	matrices_pavage[nummatrix][3] = 1;
		1661
		1662	}
7615	bpr	1663	/* arguments: un numero de vecteur entre 1 et JC_NB_MATRICES, une liste de 2 nombres reels pour le vecteur */
10	reyssat	1664	void obj_setvector(objparm *pm)
		1665	{
		1666	int nummatrix = (int) (pm->pd[0]);
		1667	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1668	fly_error("bad_vector_number");
10	reyssat	1669	return;
		1670	}
		1671	vecteurs_pavage[nummatrix][0] = pm->pd[1];
		1672	vecteurs_pavage[nummatrix][1] = pm->pd[2];
		1673	}
		1674
7615	bpr	1675	/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */
10	reyssat	1676	void obj_resetvector(objparm *pm)
		1677	{
		1678	int nummatrix = (int) (pm->pd[0]);
		1679	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1680	fly_error("bad_vector_number");
10	reyssat	1681	return;
		1682	}
		1683	vecteurs_pavage[nummatrix][0] = 0;
		1684	vecteurs_pavage[nummatrix][1] = 0;
		1685	}
		1686
7615	bpr	1687	/* arguments: un numero de vecteur entre 1 et JC_NB_MATRICES, une liste de 6 nombres reels pour la matrice et le vecteur */
10	reyssat	1688	void obj_settransform(objparm *pm)
		1689	{
		1690	int nummatrix = (int) (pm->pd[0]);
		1691	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1692	fly_error("bad_vector_number");
10	reyssat	1693	return;
		1694	}
		1695	matrices_pavage[nummatrix][0] = pm->pd[1];
		1696	matrices_pavage[nummatrix][1] = pm->pd[2];
		1697	matrices_pavage[nummatrix][2] = pm->pd[3];
		1698	matrices_pavage[nummatrix][3] = pm->pd[4];
		1699	vecteurs_pavage[nummatrix][0] = pm->pd[5];
		1700	vecteurs_pavage[nummatrix][1] = pm->pd[6];
		1701	}
		1702
		1703
7615	bpr	1704	/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */
10	reyssat	1705	void obj_resettransform(objparm *pm)
		1706	{
		1707	int nummatrix = (int) (pm->pd[0]);
		1708	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1709	fly_error("bad_vector_number");
10	reyssat	1710	return;
		1711	}
		1712	vecteurs_pavage[nummatrix][0] = 0;
		1713	vecteurs_pavage[nummatrix][1] = 0;
		1714	matrices_pavage[nummatrix][0] = 1;
		1715	matrices_pavage[nummatrix][1] = 0;
		1716	matrices_pavage[nummatrix][2] = 0;
		1717	matrices_pavage[nummatrix][3] = 1;
		1718	}
		1719
7615	bpr	1720	/* arguments: une liste de 6 nombres reels pour les coordonnees de l'origine et des vecteurs de base */
10	reyssat	1721	void obj_setparallelogram(objparm *pm)
		1722	{
		1723	int i;
		1724	for(i=0;i<6;i++) parallogram_fonda[i]=pm->pd[i];
		1725	}
		1726
		1727	/* arguments :aucun */
		1728	void obj_resetparallelogram(objparm *pm)
		1729	{
		1730	parallogram_fonda[0]=0;
		1731	parallogram_fonda[1]=0;
		1732	parallogram_fonda[2]=100;
		1733	parallogram_fonda[3]=0;
		1734	parallogram_fonda[4]=0;
		1735	parallogram_fonda[5]=100;
		1736	}
		1737
		1738	/* argument : la liste des numeros des matrices a faire agir, le nom du fichier de l'image a inclure */
		1739	void obj_multicopy(objparm *pm)
		1740	{
12473	bpr	1741	char pp,pe,*cptr;
		1742	FILE *inf;
		1743	gdImagePtr insimg;
		1744	int i,j;
		1745	int imax,jmax;
		1746	int c; /* la couleur reperee */
		1747	int mat;
		1748	int nummatrices[JC_NB_MATRICES];
		1749	double pt[2]; /* les coordonnees math. du point repere dans le parallelogramme */
		1750	double ptr[2]; /* les coordonnees math. du point transforme */
		1751	int pti[2]; /* les coordonnees img du point a placer sur le canevas */
		1752	int t;
		1753	/* gestion palette de couleur de l'image a inserer */
		1754	int colorMap[gdMaxColors];
		1755	int comptmat=0; /* combien de matrices en tout ? */
7615	bpr	1756
12473	bpr	1757	for (i=0; (i<gdMaxColors); i++) {
		1758	colorMap[i] = (-1);
		1759	}
10	reyssat	1760
12473	bpr	1761	/* Gestion des parametres la liste est censee finir avec le nom du fichier */
		1762	t=pm->pcnt-1; /* il faut enlever le nom de fichier ! c'est le nombre de parametres en plus */
		1763	pp=find_word_start(pm->str);
		1764	/* visiblement find_word_start n'arrive pas a trouver le dernier mot dans un contexte ou le nombre de parameters est variable
10	reyssat	1765	* on cherche donc l'emplacement de la derniere virgule:
		1766	* il y en a une car t>0, on retrouve ensuite le debut de mot
		1767	*/
12473	bpr	1768	for(pe=pp;pe!=0;pe++);/ trouve la fin de la chaine */
		1769	if(t>0){
		1770	for(cptr = pe; cptr > pp && *cptr != ','; cptr--);
		1771	pp=find_word_start(cptr+1);
		1772	}
		1773	pe=find_word_end(pp);pe=0; / strip junk final */
		1774	// printf("pp contient %s\n",pp);
10	reyssat	1775
		1776
12473	bpr	1777	inf=open4read(pp);
		1778	if(inf==NULL) {
		1779	fly_error("file_not_exist"); return;
		1780	}
		1781	insimg=gdImageCreateFromGif(inf); fclose(inf);
		1782	if(insimg==NULL) {
		1783	fly_error("bad_gif"); return;
		1784	}
10	reyssat	1785
12473	bpr	1786	/* On recupere les numeros des matrices/vecteurs a faire agir,
		1787	* s'il n'y en a pas, on les fait toutes agir
		1788	*/
		1789	for(i=0;i<t && i< JC_NB_MATRICES;i++) {
		1790	if(pm->pd[i]>=1 && pm->pd[i]<=JC_NB_MATRICES){
		1791	nummatrices[comptmat] = pm->pd[i];
		1792	comptmat++;
10	reyssat	1793	}
12473	bpr	1794	}
		1795	if(t<=0){
		1796	for(i=0;i<JC_NB_MATRICES;i++) {
		1797	nummatrices[i] = i+1;
10	reyssat	1798	}
12473	bpr	1799	comptmat=JC_NB_MATRICES;
		1800	}
10	reyssat	1801
7615	bpr	1802
12473	bpr	1803	imax = gdImageSX(insimg);
		1804	jmax = gdImageSY(insimg);
10	reyssat	1805
12473	bpr	1806	for(i=0;i<imax;i++){
		1807	for(j=0;j<jmax;j++){
		1808	int nc;
		1809	c=gdImageGetPixel(insimg,i,j);
		1810	/* Le code suivant est une copie du code dans gdImageCopy Added 7/24/95: support transparent copies */
		1811	if (gdImageGetTransparent(insimg) != c) {
		1812	/* Have we established a mapping for this color? */
		1813	if (colorMap[c] == (-1)) {
		1814	/* If it's the same image, mapping is trivial, dans notre cas ca n'arrive jamais... */
		1815	if (image == insimg) {
		1816	nc = c;
		1817	} else {
		1818	/* First look for an exact match */
		1819	nc = gdImageColorExact(image,
		1820	insimg->red[c], insimg->green[c],
		1821	insimg->blue[c]);
		1822	}
		1823	if (nc == (-1)) {
		1824	/* No, so try to allocate it */
		1825	nc = gdImageColorAllocate(image,
		1826	insimg->red[c], insimg->green[c],
7675	bpr	1827	insimg->blue[c]);
12473	bpr	1828	/* If we're out of colors, go for the closest color */
		1829	if (nc == (-1)) {
		1830	nc = gdImageColorClosest(image,
7675	bpr	1831	insimg->red[c], insimg->green[c],
		1832	insimg->blue[c]);
12473	bpr	1833	}
		1834	}
		1835	colorMap[c] = nc;
		1836	}
10	reyssat	1837
12473	bpr	1838	pt[0]= i(parallogram_fonda[2])/(imax-1)+(jmax-j)(parallogram_fonda[4])/(jmax-1)+parallogram_fonda[0];
		1839	pt[1]= i(parallogram_fonda[3])/(imax-1)+(jmax-j)(parallogram_fonda[5])/(jmax-1)+parallogram_fonda[1];
		1840	for(mat=0;mat<comptmat;mat++){
7675	bpr	1841	double *matricecourante = matrices_pavage[nummatrices[mat]];
		1842	double *vecteurcourant = vecteurs_pavage[nummatrices[mat]];
		1843	ptr[0] = matricecourante[0]pt[0]+matricecourante[1]pt[1]+vecteurcourant[0];
		1844	ptr[1] = matricecourante[2]pt[0]+matricecourante[3]pt[1]+vecteurcourant[1];
		1845	scale(ptr,pti,1);
		1846	gdImageSetPixel(image,pti[0],pti[1],colorMap[c]);
12473	bpr	1847	}
10	reyssat	1848	}
		1849	}
12473	bpr	1850	}
		1851	gdImageDestroy(insimg);
10	reyssat	1852	}
		1853
		1854	/** Fin modifs JC Fev 06 ****/
		1855
7675	bpr	1856	/* get color from value */
10	reyssat	1857	int calc_color(char p, struct objtab o)
		1858	{
12473	bpr	1859	int k, cc[3];
		1860	char buf[MAX_LINELEN+1];
		1861	for(k=0;k<3;k++) {
		1862	fnd_item(p,k+1,buf);
		1863	cc[k]=strevalue(buf);
		1864	}
		1865	collapse_item(p,3);
		1866	if(cc[0]==-1 && cc[1]==-1 && cc[2]==-255) {
10	reyssat	1867
12473	bpr	1868	if(brushed && o->subst&1) return gdBrushed;
		1869	else return color_black;
		1870	}
		1871	if(cc[0]==-1 && cc[1]==-255 && cc[2]==-1) {
		1872	if(styled && o->subst&2) return gdStyled;
		1873	else return color_black;
		1874	}
		1875	if(cc[0]==-255 && cc[1]==-1 && cc[2]==-1) {
		1876	if(tiled && o->fill_tag==1) return gdTiled;
		1877	else return color_black;
		1878	}
		1879	return getcolor(cc[0],cc[1],cc[2]);
10	reyssat	1880	}
		1881
7675	bpr	1882	/* Routine to parse parameters */
10	reyssat	1883	int parse_parms(char p,objparm pm,struct objtab *o)
		1884	{
12473	bpr	1885	char buf[MAX_LINELEN+1];
		1886	char p1, p2;
		1887	int j,t,c,c1,c2;
7615	bpr	1888
12473	bpr	1889	c=o->color_pos;c1=c2=0;
		1890	pm->color[0]=pm->color[1]=0;
		1891	if(c>0) c1=c;
		1892	if(c<0) c2=-c;
		1893	c=c1+c2;
		1894	t=itemnum(p);if(t<o->required_parms+3*c) return -1;
		1895	if(c1>0 && t>o->required_parms+3c) t=o->required_parms+3c;
		1896	pm->pcnt=t-3*c;
		1897	if(pm->pcnt>MAX_PARMS) pm->pcnt=MAX_PARMS;
		1898	if(c2>0) {
		1899	for(j=0;j<2 && j<c2; j++) pm->color[j]=calc_color(p,o);
		1900	}
		1901	snprintf(buf,sizeof(buf),"%s",p);
		1902	for(j=0, p1=buf; j<pm->pcnt; j++, p1=p2) {
		1903	p2=find_item_end(p1); if(p2) p2++=0;
		1904	p1=find_word_start(p1);
		1905	if(*p1) pm->pd[j]=strevalue(p1); else pm->pd[j]=0;
		1906	if(!isfinite(pm->pd[j])) {
		1907	if(j<o->required_parms) return -1;
		1908	else {pm->pd[j]=0;break;}
10	reyssat	1909	}
12473	bpr	1910	}
		1911	collapse_item(p,o->required_parms);
		1912	if(c1>0) {
		1913	for(j=0;j<c1 && j<2; j++) pm->color[j]=calc_color(p,o);
		1914	}
		1915	if(width>1 && o->subst&1 && pm->color[0]!=gdBrushed
		1916	&& pm->color[0]!=gdStyled && pm->color[0]!=gdTiled) {
		1917	pm->color[1]=pm->color[0];
		1918	pm->color[0]=widthcolor(width,pm->color[0]);
		1919	}
		1920	pm->fill=o->fill_tag;
18131	bpr	1921	if(o->required_parms!=0){
		1922	if(dashed) {
		1923	if(pm->fill==1) pm->fill=2;
		1924	if(pm->fill==0) pm->fill=-1;
18159	bpr	1925	if(noreset==0) dashed=0;
18131	bpr	1926	}
		1927	if(filled) {
		1928	if(pm->fill==-1) pm->fill=2;
		1929	if(pm->fill==0) pm->fill=1;
18159	bpr	1930	if(noreset==0) filled=0;
18131	bpr	1931	}
		1932	}
12473	bpr	1933	ovlstrcpy(pm->str,p); return 0;
10	reyssat	1934	}
		1935
8068	bpr	1936	/* Create the struct objparm pm corresponding to the objparm p
		1937	* Execute a command. Returns 0 if OK.
		1938	*/
10	reyssat	1939	int obj_main(char *p)
		1940	{
12473	bpr	1941	int i;
		1942	char pp,name,*pt;
		1943	char tbuf2[MAX_LINELEN+1];
		1944	struct objparm pm;
10	reyssat	1945
12473	bpr	1946	p=find_word_start(p);
		1947	if(p==exec_prefix_char \|\| p==0) return 0; /* comment */
		1948	name=p;
		1949	pp=find_name_end(p);
		1950	pt=find_word_start(pp); if(pt=='=') pt=' ';
		1951	if(pt==':' && (pt+1)=='=') pt=(pt+1)=' ';
		1952	pp=find_word_end(p);
		1953	if(*pp!=0) {
		1954	*(pp++)=0; pp=find_word_start(pp);
		1955	}
		1956	if(strlen(p)==1 \|\| (strlen(p)==2 && isdigit(*(p+1)))) {
		1957	setvar(p,strevalue(pp)); return 0;
		1958	}
		1959	/* search the number of the object */
		1960	i=search_list(objtab,obj_no,sizeof(objtab[0]),name);
		1961	if(i<0) {
		1962	fly_error("bad_cmd"); return 1;
		1963	}
		1964	if(image==NULL && (objtab[i].color_pos \|\| objtab[i].required_parms>2)) {
		1965	fly_error("image_not_defined"); return 1;
		1966	}
		1967	ovlstrcpy(tbuf2,pp);
		1968	if(objtab[i].color_pos \|\| objtab[i].routine==obj_setstyle) {
		1969	substit(tbuf2);
		1970	}
		1971	if(parse_parms(tbuf2,&pm,objtab+i)!=0) fly_error("bad_parms");
		1972	else objtab[i].routine(&pm);
		1973	return 0;
10	reyssat	1974	}

Subversion Repositories wimsdev

(root)/trunk/wims/src/Flydraw/objects.c – Rev 18351