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"
18317	bpr	20	const double DEG=M_PI/180;
8177	bpr	21
17574	bpr	22	/* Tikz things */
17599	bpr	23
17608	bpr	24	static char *tikz_color (int the_color)
		25	{
		26	static char buf[50];
		27	int r=gdImageRed(image,the_color);
		28	int g=gdImageGreen(image,the_color);
		29	int b=gdImageBlue(image,the_color);
		30	sprintf(buf, "{rgb,255:red,%i;green,%i;blue,%i}",r,g,b);
		31	return buf;
		32	}
		33
17574	bpr	34	static char *tikz_options (int the_color, int the_fill)
		35	{
		36	static char buf[100];
		37	if (the_color == gdBrushed)
		38	the_color = tikz_brushColor;
17608	bpr	39	sprintf (buf, "draw=%s,cap=round",tikz_color(the_color));
17574	bpr	40	if (the_color != tikz_brushColor) strcat(buf, ",thin");
18125	bpr	41	if (the_fill == -1 \|\| the_fill == 2) strcat(buf, ",dashed");
		42	if (the_fill == 1 \|\| the_fill == 2)
17608	bpr	43	sprintf(buf+strlen(buf), ",fill=%s", tikz_color(the_color));
17574	bpr	44	return buf;
		45	}
		46
17662	bpr	47	#define flip(y) (sizey-1-(y))
17574	bpr	48
8010	bpr	49	/* bug in gdImageFillToBorder */
10	reyssat	50
8162	bpr	51	void patchgdImageFillToBorder (gdImagePtr im, int x, int y, int border, int color)
8076	bpr	52	{
12473	bpr	53	if(x>=im->sx \|\| x<0 \|\| y>=im->sy \|\| y<0) return;
		54	gdImageFillToBorder(im,x,y,border,color);
8076	bpr	55	}
		56
8162	bpr	57	void patchgdImageFill (gdImagePtr im, int x, int y, int color)
8156	bpr	58	{
12473	bpr	59	if(x>=im->sx \|\| x<0 \|\| y>=im->sy \|\| y<0) return;
		60	gdImageFill(im,x,y,color);
8156	bpr	61	}
8076	bpr	62
9651	georgesk	63	#define DASHPIXELS 8
		64
		65	void myDashedLine(gdImagePtr im, int x1, int y1, int x2, int y2, int color){
		66	/**
		67	* emulates gdImageDashedLine with gdImageSetStyle and gdImageLine
		68	* GK: As gdImageDashedLine is slightly broken in latest libgd libraries,
		69	* GK: I implemented an emulation named "myDashedLine"
		70	**/
		71
		72	int styleDashed[DASHPIXELS],i;
		73	for (i=0; i< DASHPIXELS/2; i++) styleDashed[i]=color;
		74	for (; i< DASHPIXELS; i++) styleDashed[i]=gdTransparent;
		75	gdImageSetStyle(im, styleDashed, DASHPIXELS);
		76	gdImageLine(im, x1, y1, x2, y2, gdStyled);
		77	}
		78
		79
7675	bpr	80	/* File opening: with security */
10	reyssat	81	FILE open4read(char n)
		82	{
12473	bpr	83	char p, p1, *p2, namebuf[2048];
		84	int t;
		85	FILE *f;
		86	n=find_word_start(n);
		87	if(*n==0) return NULL;
		88	p=getenv("flydraw_filebase");
		89	p1=n+strlen(n)-4;if(p1<n \|\| strcasecmp(p1,".gif")!=0) t=1; else t=0;
		90	if(p!=NULL && *p!=0) {
		91	char pbuf[MAX_LINELEN+1];
		92	snprintf(pbuf,sizeof(pbuf),"%s",p);
		93	p=find_word_start(pbuf); if(strstr(p,"..")!=NULL) return NULL;
		94	if(*n=='/' \|\| strstr(n,"..")!=NULL) return NULL;
		95	/* prohibit unusual file/dir names */
		96	for(p1=p;*p1;p1++)
		97	if(!isalnum(p1) && !isspace(p1) && strchr("~_-/.",*p1)==NULL)
		98	return NULL;
		99	for(p1=n;*p1;p1++)
		100	if(!isalnum(p1) && !isspace(p1) && strchr("~_-/.",*p1)==NULL)
		101	return NULL;
		102	f=NULL;
		103	for(p1=p; *p1; p1=find_word_start(p2)) {
		104	p2=find_word_end(p1);
		105	if(p2) p2++=0;
		106	snprintf(namebuf,sizeof(namebuf),"%s/%s",p1,n);
		107	f=fopen(namebuf,"r"); if(f!=NULL) goto imgtype;
10	reyssat	108	}
12473	bpr	109	p1=getenv("w_wims_session");
		110	if(p1!=NULL && strncmp(n,"insert",6)==0) {
		111	snprintf(namebuf,sizeof(namebuf),"../s2/%s/%s",p1,n);
7675	bpr	112	f=fopen(namebuf,"r");
10	reyssat	113	}
12473	bpr	114	}
		115	else {
		116	snprintf(namebuf,sizeof(namebuf),"%s",n);
		117	f=fopen(namebuf,"r");
		118	}
		119	imgtype:
		120	if(t && f!=NULL) {
		121	char tbuf[1024],sbuf[4096];
		122	fclose(f); f=NULL;
		123	p1=getenv("TMPDIR"); if(p1==NULL \|\| *p1==0) p1=".";
		124	snprintf(tbuf,sizeof(tbuf),"%s/drawfile_.gif",p1);
		125	snprintf(sbuf,sizeof(sbuf),"convert %s %s",namebuf,tbuf);
		126	if (system(sbuf)) fly_error("system_failed");
		127	f=fopen(tbuf,"r");
		128	}
		129	return f;
10	reyssat	130	}
		131
7675	bpr	132	/* Does nothing; just a comment. */
10	reyssat	133	void obj_comment(objparm *pm)
		134	{
12473	bpr	135	return;
10	reyssat	136	}
		137
7675	bpr	138	/* define image size */
10	reyssat	139	void obj_size(objparm *pm)
		140	{
12473	bpr	141	sizex=rint(pm->pd[0]); sizey=rint(pm->pd[1]);
		142	if(sizex<0 \|\| sizey<0 \|\| sizex>MAX_SIZE \|\| sizey>MAX_SIZE) {
		143	fly_error("bad_size"); return;
		144	}
		145	if(image!=NULL) {
		146	fly_error("size_already_defined"); return;
		147	}
		148	image=gdImageCreate(sizex,sizey);
17574	bpr	149	if(tikz_file) fprintf(tikz_file,"\\clip (0,0) rectangle (%i, %i);\n", sizex, sizey);
12473	bpr	150	if(image==NULL) fly_error("image_creation_failure");
		151	else {
		152	color_white=gdImageColorAllocate(image,255,255,255);
		153	color_black=gdImageColorAllocate(image,0,0,0);
		154	color_bounder=gdImageColorAllocate(image,1,2,3);
		155	color_frame=gdImageColorAllocate(image,254,254,254);
		156	}
10	reyssat	157	}
		158
7675	bpr	159	/* new image */
10	reyssat	160	void obj_new(objparm *pm)
		161	{
12473	bpr	162	if(image) {
		163	gdImageDestroy(image);image=NULL;
		164	}
		165	if(pm->pcnt>=2) { obj_size(pm); gdImageRectangle(image,0,0,sizex-1,sizey-1,color_frame);}
		166	else sizex=sizey=0;
		167	saved=0;
10	reyssat	168	}
		169
7675	bpr	170	/* new image */
10	reyssat	171	void obj_existing(objparm *pm)
		172	{
12473	bpr	173	FILE *inf;
		174	char *pp;
7615	bpr	175
12473	bpr	176	if(image) {
		177	gdImageDestroy(image);image=NULL;
		178	}
		179	pp=find_word_start(pm->str);*find_word_end(pp)=0;
		180	inf=open4read(pp);
		181	if(inf==NULL) {
		182	fly_error("file_not_exist"); return;
		183	}
		184	image=gdImageCreateFromGif(inf); fclose(inf);
		185	if(image==NULL) {
		186	fly_error("bad_gif"); return;
		187	}
		188	sizex=image->sx; sizey=image->sy;
		189	saved=0;
10	reyssat	190	}
18066	bpr	191	/* tikzfile */
		192	void obj_tikzfile(objparm *pm)
		193	{
		194	char *p;
		195	if(tikz_file){
		196	fprintf(tikz_file,"\\end{tikzpicture}\n");
		197	fclose(tikz_file);
		198	}
		199	p=find_word_start(pm->str); *find_word_end(p)=0;
		200	snprintf(tikzfilename,sizeof(tikzfilename),"%s",p);
		201	tikz_file=fopen(tikzfilename,"w");
		202	if(!tikz_file)
		203	fly_error("tikz_nopen");
		204	fprintf(tikz_file,"\\begin{tikzpicture}\[x=0.02cm, y=0.02cm]\n");
		205	}
10	reyssat	206
18123	bpr	207	/* segment */
10	reyssat	208	void obj_line(objparm *pm)
		209	{
12473	bpr	210	scale(pm->pd,pm->p,2);
18125	bpr	211	if(pm->fill==-1 \|\| pm->fill==2 )
18123	bpr	212	myDashedLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],pm->color[0]);
		213	else
		214	gdImageLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],pm->color[0]);
17574	bpr	215	if (tikz_file)
		216	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		217	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),pm->p[2],flip(pm->p[3]));
12473	bpr	218	if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]);
10	reyssat	219	}
		220
1024	bpr	221	void _obj_arrow(objparm *pm, int twoside)
10	reyssat	222	{
12473	bpr	223	int l,xx,yy;
		224	gdPoint ii[3];
		225	double dx,dy,length,dd[6];
		226	scale(pm->pd,pm->p,2);
		227	xx=ii[0].x=pm->p[2];yy=ii[0].y=pm->p[3];
		228	l=pm->pd[4];if(l<0) l=0; if(l>200) l=200;
		229	scale2(pm->pd[0]-pm->pd[2],pm->pd[1]-pm->pd[3],&dx,&dy);
		230	length=sqrt(dxdx+dydy);
		231	if(length<3 \|\| l<5) goto stem;
		232	dd[0]=ldx/length; dd[1]=ldy/length;
		233	#define fat 0.27
		234	dd[2]=dd[0]+dd[1]fat; dd[3]=dd[1]-dd[0]fat;
		235	dd[4]=dd[0]-dd[1]fat; dd[5]=dd[1]+dd[0]fat;
		236	ii[1].x=rint(dd[2])+ii[0].x; ii[1].y=rint(dd[3])+ii[0].y;
		237	ii[2].x=rint(dd[4])+ii[0].x; ii[2].y=rint(dd[5])+ii[0].y;
		238	gdImageFilledPolygon(image, ii,3,pm->color[0]);
17578	bpr	239	if(tikz_file)
		240	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
		241	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));
		242	if(vimg_enable) vimg_polyline(scale_buf,3,1);
12473	bpr	243	xx=rint(dd[0])+ii[0].x;yy=rint(dd[1])+ii[0].y;
		244	if(twoside) {
		245	ii[0].x=pm->p[0]; ii[0].y=pm->p[1];
		246	ii[1].x=-rint(dd[2])+ii[0].x; ii[1].y=-rint(dd[3])+ii[0].y;
		247	ii[2].x=-rint(dd[4])+ii[0].x; ii[2].y=-rint(dd[5])+ii[0].y;
8163	bpr	248	gdImageFilledPolygon(image, ii,3,pm->color[0]);
17578	bpr	249	if(tikz_file)
		250	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
		251	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	252	}
18125	bpr	253	stem: if(pm->fill==-1 \|\| pm->fill==2)
12473	bpr	254	myDashedLine(image,pm->p[0],pm->p[1],xx,yy,pm->color[0]);
		255	else
		256	gdImageLine(image,pm->p[0],pm->p[1],xx,yy,pm->color[0]);
17578	bpr	257	if(tikz_file)
		258	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
17584	bpr	259	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),xx,flip(yy));
12473	bpr	260	if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]);
10	reyssat	261	}
		262
7675	bpr	263	/* Arrow */
1024	bpr	264	void obj_arrow(objparm *pm)
		265	{
12473	bpr	266	_obj_arrow(pm,0);
1024	bpr	267	}
		268
7675	bpr	269	/* 2-sided arrow */
1024	bpr	270	void obj_arrow2(objparm *pm)
		271	{
12473	bpr	272	_obj_arrow(pm,1);
1024	bpr	273	}
		274
18047	bpr	275	void _obj_arrows(objparm *pm, int twoside)
		276	{
		277	#define fat 0.27
		278	int i,l,xx,yy;
		279	gdPoint ii[3];
		280	double dx,dy,length,dd[6];
		281	l=pm->pd[0];if(l<0) l=0; if(l>200) l=200;
		282	scale(pm->pd+1,pm->p+1,pm->pcnt/2);
		283	for (i=1;i<pm->pcnt;i+=4){
18119	bpr	284	xx=ii[0].x=pm->p[i+2];yy=ii[0].y=pm->p[i+3];
		285	scale2(pm->pd[i]-pm->pd[i+2],pm->pd[i+1]-pm->pd[i+3],&dx,&dy);
		286	length=sqrt(dxdx+dydy);
		287	if(length<3 \|\| l<5) goto stem;
		288	dd[0]=ldx/length; dd[1]=ldy/length;
		289	dd[2]=dd[0]+dd[1]fat; dd[3]=dd[1]-dd[0]fat;
		290	dd[4]=dd[0]-dd[1]fat; dd[5]=dd[1]+dd[0]fat;
		291	ii[1].x=rint(dd[2])+ii[0].x; ii[1].y=rint(dd[3])+ii[0].y;
		292	ii[2].x=rint(dd[4])+ii[0].x; ii[2].y=rint(dd[5])+ii[0].y;
		293	gdImageFilledPolygon(image, ii,3,pm->color[0]);
		294	if(tikz_file)
18065	bpr	295	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
		296	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));
		297	xx=rint(dd[0])+ii[0].x;yy=rint(dd[1])+ii[0].y;
		298	if(twoside) {
		299	ii[0].x=pm->p[i]; ii[0].y=pm->p[i+1];
		300	ii[1].x=-rint(dd[2])+ii[0].x; ii[1].y=-rint(dd[3])+ii[0].y;
		301	ii[2].x=-rint(dd[4])+ii[0].x; ii[2].y=-rint(dd[5])+ii[0].y;
		302	gdImageFilledPolygon(image, ii,3,pm->color[0]);
		303	if(tikz_file)
		304	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
		305	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	306	}
18125	bpr	307	stem: if(pm->fill==-1 \|\| pm->fill==2)
18065	bpr	308	myDashedLine(image,pm->p[i],pm->p[i+1],xx,yy,pm->color[0]);
		309	else
		310	gdImageLine(image,pm->p[i],pm->p[i+1],xx,yy,pm->color[0]);
		311	if(tikz_file)
		312	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		313	tikz_options(pm->color[0],pm->fill),pm->p[i],flip(pm->p[i+1]),xx,flip(yy));
		314	}
18047	bpr	315	}
		316
		317	/* Arrows */
		318	void obj_arrows(objparm *pm)
		319	{
		320	_obj_arrows(pm,0);
		321	}
		322
		323	/* 2-sided arrows */
		324	void obj_arrows2(objparm *pm)
		325	{
		326	_obj_arrows(pm,1);
		327	}
		328
7675	bpr	329	/* horizontal line */
10	reyssat	330	void obj_hline(objparm *pm)
		331	{
12473	bpr	332	scale(pm->pd,pm->p,1);
18125	bpr	333	if(pm->fill==-1 \|\| pm->fill==2)
12473	bpr	334	myDashedLine(image,0,pm->p[1],sizex,pm->p[1],pm->color[0]);
		335	else
		336	gdImageLine(image,0,pm->p[1],sizex,pm->p[1],pm->color[0]);
17574	bpr	337	if (tikz_file)
		338	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		339	tikz_options(pm->color[0],pm->fill),0,flip(pm->p[1]),sizex,flip(pm->p[1]));
10	reyssat	340	}
		341
18119	bpr	342	static void line_extend(int x1, int y1, int x2, int y2, int* xend, int *yend)
		343	{
		344	double t1, t2, t3;
		345	if (x2 != x1){t1 = (x2 > x1) ? sizex : 0; t1 = (t1 - x1)/(x2 - x1);}
		346	else t1 = INFINITY;
		347	if (y2 != y1){t2 = (y2 > y1) ? sizey : 0; t2 = (t2 - y1)/(y2 - y1);}
		348	else t2 = INFINITY;
		349	t3 = (t1 < t2) ? t1 : t2;
		350	xend = x1+t3(x2-x1);
		351	yend = y1+t3(y2-y1);
		352	}
18066	bpr	353
18065	bpr	354	/* halfline */
		355	void obj_halfline(objparm *pm)
		356	{
18119	bpr	357	int xend,yend;
18065	bpr	358	scale(pm->pd,pm->p,2);
18119	bpr	359	line_extend(pm->p[0],pm->p[1],pm->p[2],pm->p[3],&xend,&yend);
18125	bpr	360	if(pm->fill==-1 \|\| pm->fill==2)
18119	bpr	361	myDashedLine(image,pm->p[0],pm->p[1],xend,yend,pm->color[0]);
18065	bpr	362	else
18119	bpr	363	gdImageLine(image,pm->p[0],pm->p[1],xend,yend,pm->color[0]);
18065	bpr	364	if (tikz_file)
		365	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		366	tikz_options(pm->color[0],pm->fill),
18119	bpr	367	pm->p[0],flip(pm->p[1]),xend,flip(yend));
18065	bpr	368	}
17574	bpr	369
18119	bpr	370	void obj_fullline(objparm *pm)
		371	{
		372	int xstart,ystart,xend,yend;
		373	scale(pm->pd,pm->p,2);
		374	line_extend(pm->p[0],pm->p[1],pm->p[2],pm->p[3],&xend,&yend);
		375	line_extend(pm->p[2],pm->p[3],pm->p[0],pm->p[1],&xstart,&ystart);
18125	bpr	376	if(pm->fill==-1 \|\| pm->fill==2)
18119	bpr	377	myDashedLine(image,xstart,ystart,xend,yend,pm->color[0]);
		378	else
		379	gdImageLine(image,xstart,ystart,xend,yend,pm->color[0]);
		380	if (tikz_file)
		381	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		382	tikz_options(pm->color[0],pm->fill),xstart,flip(ystart),xend,flip(yend));
		383	}
		384
		385	void obj_fulllines(objparm *pm)
		386	{
		387	int i,xstart,ystart,xend,yend;
		388	scale(pm->pd,pm->p,pm->pcnt/2);
		389	if (tikz_file)
		390	fprintf(tikz_file, "\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
		391	for (i=0;i<pm->pcnt;i+=4){
		392	line_extend(pm->p[i],pm->p[i+1],pm->p[i+2],pm->p[i+3],&xend,&yend);
		393	line_extend(pm->p[i+2],pm->p[i+3],pm->p[i],pm->p[i+1],&xstart,&ystart);
18125	bpr	394	if(pm->fill==-1 \|\| pm->fill==2)
18119	bpr	395	myDashedLine(image,xstart,ystart,xend,yend,pm->color[0]);
		396	else
		397	gdImageLine(image,xstart,ystart,xend,yend,pm->color[0]);
		398	if (tikz_file)
		399	fprintf(tikz_file, "(%i,%i)--(%i, %i)",xstart,flip(ystart),xend,flip(yend));
		400	}
		401	if (tikz_file)
		402	fprintf(tikz_file, ";\n");
		403	}
		404
7675	bpr	405	/* vertical line */
10	reyssat	406	void obj_vline(objparm *pm)
		407	{
12473	bpr	408	scale(pm->pd,pm->p,1);
18125	bpr	409	if(pm->fill==-1 \|\| pm->fill==2)
12473	bpr	410	myDashedLine(image,pm->p[0],0,pm->p[0],sizey,pm->color[0]);
		411	else
		412	gdImageLine(image,pm->p[0],0,pm->p[0],sizey,pm->color[0]);
17574	bpr	413	if (tikz_file)
		414	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		415	tikz_options(pm->color[0],pm->fill),pm->p[0],0,pm->p[0],sizey);
10	reyssat	416	}
		417
7675	bpr	418	/* dashed line */
10	reyssat	419	void obj_dline(objparm *pm)
		420	{
12473	bpr	421	scale(pm->pd,pm->p,2);
		422	myDashedLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3], pm->color[0]);
17574	bpr	423	if (tikz_file)
		424	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		425	tikz_options(pm->color[0],-1),
		426	pm->p[0],flip(pm->p[1]),pm->p[2],flip(pm->p[3]));
10	reyssat	427	}
		428
7675	bpr	429	/* parallel lines.
		430	* x1,y1,x2,y2,xv,yv,n,color */
10	reyssat	431	void obj_parallel(objparm *pm)
		432	{
18123	bpr	433	int i, n, xi,yi;
		434	double xv,yv;
		435	n=pm->pd[6]; if(n<0) return; if(n>256) n=256;
		436	scale(pm->pd,pm->p,3);
		437	scale2(pm->pd[4],pm->pd[5],&xv,&yv);
		438	if (tikz_file)
		439	fprintf(tikz_file, "\\draw\[%s]", tikz_options(pm->color[0],pm->fill));
		440	for(i=0;i<n;i++) {
		441	xi=rint(ixv); yi=rint(iyv);
18125	bpr	442	if(pm->fill==-1 \|\| pm->fill==2)
18123	bpr	443	myDashedLine(image,pm->p[0]+xi,pm->p[1]+yi,pm->p[2]+xi,pm->p[3]+yi,
		444	pm->color[0]);
		445	else
		446	gdImageLine(image,pm->p[0]+xi,pm->p[1]+yi,pm->p[2]+xi,pm->p[3]+yi,
		447	pm->color[0]);
		448	if (tikz_file)
		449	fprintf(tikz_file, "(%i,%i)--(%i, %i)",
		450	pm->p[0]+xi,flip(pm->p[1]+yi),pm->p[2]+xi,flip(pm->p[3]+yi));
		451	if(vimg_enable) vimg_line(scale_buf[0]+i*(scale_buf[4]-transx),
		452	scale_buf[1]+i*(scale_buf[5]-transy),
		453	scale_buf[2]+i*(scale_buf[4]-transx),
		454	scale_buf[3]+i*(scale_buf[5]-transy));
		455	}
17914	bpr	456	if(tikz_file) fprintf(tikz_file,";\n");
10	reyssat	457	}
		458
7675	bpr	459	/* rectangle */
10	reyssat	460	void obj_rect(objparm *pm)
		461	{
12473	bpr	462	int x1,y1,x2,y2;
		463	scale(pm->pd,pm->p,2);
		464	x1=min(pm->p[0],pm->p[2]); x2=max(pm->p[0],pm->p[2]);
		465	y1=min(pm->p[1],pm->p[3]); y2=max(pm->p[1],pm->p[3]);
18140	bpr	466	if(pm->fill!=0){
		467	if(pm->fill==-1 \|\| pm->fill==2){
		468	myDashedLine(image,x1,y1,x1,y2,pm->color[0]);
		469	myDashedLine(image,x1,y2,x2,y2,pm->color[0]);
		470	myDashedLine(image,x2,y2,x2,y1,pm->color[0]);
		471	myDashedLine(image,x2,y1,x1,y1,pm->color[0]);
		472	}
		473	if(pm->fill==1 \|\| pm->fill==2)
		474	gdImageFilledRectangle(image,x1,y1,x2,y2,pm->color[0]);
		475	}
12473	bpr	476	else
		477	gdImageRectangle(image,x1,y1,x2,y2,pm->color[0]);
17584	bpr	478	if(tikz_file)
		479	fprintf(tikz_file,
		480	"\\draw\[%s] (%i,%i) rectangle (%i,%i);\n",
		481	tikz_options(pm->color[0],pm->fill),x1,flip(y1),x2,flip(y2));
12473	bpr	482	if(vimg_enable) vimg_rect(scale_buf[0],scale_buf[1],scale_buf[2],scale_buf[3]);
10	reyssat	483	}
		484
7675	bpr	485	/* square */
10	reyssat	486	void obj_square(objparm *pm)
		487	{
12473	bpr	488	int w,h;
		489	scale(pm->pd,pm->p,1);
		490	w=rint(pm->pd[2]); h=rint(pm->pd[2]);
18142	bpr	491	if(pm->fill!=0){
		492	if(pm->fill==-1 \|\| pm->fill==2){
		493	myDashedLine(image,pm->p[0],pm->p[1],pm->p[0]+w,pm->p[1],pm->color[0]);
		494	myDashedLine(image,pm->p[0]+w,pm->p[1],pm->p[0]+w,pm->p[1]+h,pm->color[0]);
		495	myDashedLine(image,pm->p[0]+w,pm->p[1]+h,pm->p[0],pm->p[1]+h,pm->color[0]);
		496	myDashedLine(image,pm->p[0],pm->p[1]+h,pm->p[0],pm->p[1],pm->color[0]);
		497	}
		498	if(pm->fill==1 \|\| pm->fill==2)
12473	bpr	499	gdImageFilledRectangle(image,pm->p[0],pm->p[1],
18123	bpr	500	pm->p[0]+w,pm->p[1]+h,pm->color[0]);
18142	bpr	501	}
12473	bpr	502	else
		503	gdImageRectangle(image,pm->p[0],pm->p[1],
		504	pm->p[0]+w,pm->p[1]+h,pm->color[0]);
17574	bpr	505	if(tikz_file){
		506	fprintf(tikz_file,
		507	"\\draw\[%s] (%i,%i) rectangle (%i,%i);\n",
		508	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),
		509	pm->p[0]+w,flip(pm->p[1]+h));
		510	}
12473	bpr	511	if(vimg_enable) vimg_rect(scale_buf[0],scale_buf[1],
		512	scale_buf[0]+pm->pd[2],scale_buf[1]+pm->pd[2]);
10	reyssat	513	}
		514
7675	bpr	515	/* triangle */
10	reyssat	516	void obj_triangle(objparm *pm)
		517	{
12473	bpr	518	scale(pm->pd,pm->p,3);
18131	bpr	519	int i,n=2;
		520	if(pm->fill!=0){
		521	if(pm->fill==-1 \|\| pm->fill==2){
		522	for(i=0;i<n;i+=1)
		523	myDashedLine(image,pm->p[2i],pm->p[2i+1],pm->p[2i+2],pm->p[2i+3],pm->color[0]);
		524	myDashedLine(image,pm->p[2n],pm->p[2n+1],pm->p[0],pm->p[1],pm->color[0]);
		525	}
		526	if(pm->fill==1 \|\| pm->fill==2)
		527	gdImageFilledPolygon(image,(gdPointPtr) pm->p,3,pm->color[0]);
		528	}
12473	bpr	529	else
		530	gdImagePolygon(image,(gdPointPtr) pm->p,3,pm->color[0]);
17574	bpr	531	if (tikz_file)
		532	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) -- (%i, %i) -- cycle;\n",
		533	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	534	if(vimg_enable) vimg_polyline(scale_buf,3,1);
10	reyssat	535	}
		536
7675	bpr	537	/* polygon */
10	reyssat	538	void obj_poly(objparm *pm)
		539	{
17574	bpr	540	int cnt,i;
12473	bpr	541	cnt=(pm->pcnt)/2;
		542	scale(pm->pd,pm->p,cnt);
18125	bpr	543	if(pm->fill==1 \|\| pm->fill==2)
12473	bpr	544	gdImageFilledPolygon(image,(gdPointPtr) pm->p,cnt,pm->color[0]);
		545	else
		546	gdImagePolygon(image,(gdPointPtr) pm->p,cnt,pm->color[0]);
17614	bpr	547	if(tikz_file){
		548	fprintf(tikz_file,"\\draw\[%s] (%i,%i) --",tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]));
		549	for (i= 1; i<cnt; i++)
		550	fprintf(tikz_file,"(%i,%i)--", pm->p[2i],flip(pm->p[2i+1]));
		551	fprintf(tikz_file," cycle;\n");
		552	}
12473	bpr	553	if(vimg_enable) vimg_polyline(scale_buf,cnt,1);
10	reyssat	554	}
		555
7675	bpr	556	/* rays */
10	reyssat	557	void obj_rays(objparm *pm)
		558	{
12473	bpr	559	int i, n;
		560	n=(pm->pcnt)/2;
		561	scale(pm->pd,pm->p,n);
17920	bpr	562	if (tikz_file)
		563	fprintf(tikz_file, "\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
12473	bpr	564	for(i=2;i<2*n;i+=2) {
18125	bpr	565	if(pm->fill==-1 \|\| pm->fill==2)
18123	bpr	566	myDashedLine(image,pm->p[0],pm->p[1],pm->p[i],pm->p[i+1],pm->color[0]);
		567	else
		568	gdImageLine(image,pm->p[0],pm->p[1],pm->p[i],pm->p[i+1],pm->color[0]);
17574	bpr	569	if (tikz_file)
17920	bpr	570	fprintf(tikz_file, "(%i,%i) -- (%i,%i)",
		571	pm->p[0],flip(pm->p[1]),pm->p[i],flip(pm->p[i+1]));
12473	bpr	572	if(vimg_enable) vimg_line(scale_buf[0],scale_buf[1],
		573	scale_buf[i],scale_buf[i+1]);
		574	}
17920	bpr	575	if (tikz_file) fprintf(tikz_file,";\n");
10	reyssat	576	}
8414	bpr	577	/* crosshair */
		578	void obj_crosshair(objparm *pm)
		579	{
12473	bpr	580	scale(pm->pd,pm->p,2);
		581	gdImageLine(image,pm->p[0]+width2,pm->p[1]+width2,pm->p[0]-width2,pm->p[1]-width2,pm->color[0]);
		582	gdImageLine(image,pm->p[0]-width2,pm->p[1]+width2,pm->p[0]+width2,pm->p[1]-width2,pm->color[0]);
17574	bpr	583	if (tikz_file){
		584	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		585	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));
		586	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i);\n",
		587	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));
		588	}
8414	bpr	589	}
		590	/* crosshairs */
10	reyssat	591
8414	bpr	592	void obj_crosshairs(objparm *pm)
		593	{
12473	bpr	594	int i, n;
		595	n=(pm->pcnt)/2;
		596	scale(pm->pd,pm->p,n);
17921	bpr	597	if (tikz_file)
		598	fprintf(tikz_file, "\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
12473	bpr	599	for(i=0;i<2*n;i+=2) {
		600	gdImageLine(image,pm->p[i]+width2,pm->p[i+1]+width2,pm->p[i]-width2,pm->p[i+1]-width2,pm->color[0]);
		601	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	602	if (tikz_file){
17921	bpr	603	fprintf(tikz_file, "(%i, %i) -- (%i, %i) ",
		604	pm->p[i]+width2,flip(pm->p[i+1]+width2),pm->p[i]-width2,flip(pm->p[i+1]-width2));
		605	fprintf(tikz_file, "(%i, %i) -- (%i, %i)",
		606	pm->p[i]-width2,flip(pm->p[i+1]+width2),pm->p[i]+width2,flip(pm->p[i+1]-width2));
17574	bpr	607	}
12473	bpr	608	}
17921	bpr	609	if (tikz_file) fprintf(tikz_file,";\n");
8414	bpr	610	}
		611
		612
7675	bpr	613	/* segments */
10	reyssat	614	void obj_lines(objparm *pm)
		615	{
17914	bpr	616	int i, n;
		617	n=(pm->pcnt)/2;
		618	scale(pm->pd,pm->p,n);
18123	bpr	619	if (tikz_file){
17914	bpr	620	fprintf(tikz_file,"\\draw\[%s] (%i,%i)",
		621	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]));
		622	for(i=2;i<2*n;i+=2)
		623	fprintf(tikz_file, "--(%i,%i)",pm->p[i],flip(pm->p[i+1]));
		624	fprintf(tikz_file, ";\n");
		625	}
		626	for(i=2;i<2*n;i+=2){
18125	bpr	627	if(pm->fill==-1 \|\| pm->fill==2 )
18123	bpr	628	myDashedLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]);
		629	else
		630	gdImageLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]);
17914	bpr	631	if(vimg_enable) vimg_polyline(scale_buf,n,0);
17574	bpr	632	}
10	reyssat	633	}
16344	bpr	634	/segments from x1,y1 to x2,y2, x3,y3 to x4,y4, etc /
		635	void obj_segments(objparm *pm)
		636	{
		637	int i, n;
18317	bpr	638	n=(pm->pcnt)/2;
		639	scale(pm->pd,pm->p,n);
17914	bpr	640	if (tikz_file)
		641	fprintf(tikz_file, "\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
18317	bpr	642	for(i=0;i<2*n;i+=4){
18125	bpr	643	if(pm->fill==-1 \|\| pm->fill==2)
18123	bpr	644	myDashedLine(image,pm->p[i],pm->p[i+1],pm->p[i+2],pm->p[i+3],pm->color[0]);
		645	else
		646	gdImageLine(image,pm->p[i],pm->p[i+1],pm->p[i+2],pm->p[i+3],pm->color[0]);
17914	bpr	647	if (tikz_file)
		648	fprintf(tikz_file, "(%i,%i)--(%i,%i)",
		649	pm->p[i],flip(pm->p[i+1]),pm->p[i+2],flip(pm->p[i+3]));
17574	bpr	650	}
17914	bpr	651	if(tikz_file) fprintf(tikz_file, ";\n");
16344	bpr	652	}
18317	bpr	653
7675	bpr	654	/* segments */
10	reyssat	655	void obj_dlines(objparm *pm)
		656	{
17914	bpr	657	int i, n;
		658	n=(pm->pcnt)/2;
		659	scale(pm->pd,pm->p,n);
18123	bpr	660	if (tikz_file){
17914	bpr	661	fprintf(tikz_file,"\\draw\[%s] (%i,%i)",
		662	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]));
		663	for(i=2;i<2*n;i+=2)
		664	fprintf(tikz_file, "--(%i,%i)",pm->p[i],flip(pm->p[i+1]));
		665	fprintf(tikz_file, ";\n");
		666	}
		667	for(i=2;i<2*n;i+=2)
		668	myDashedLine(image,pm->p[i-2],pm->p[i-1],pm->p[i],pm->p[i+1],pm->color[0]);
		669	if(vimg_enable) vimg_polyline(scale_buf,n,0);
10	reyssat	670	}
		671
7675	bpr	672	/* points */
10	reyssat	673	void obj_points(objparm *pm)
		674	{
17914	bpr	675	int i, n;
		676	n=(pm->pcnt)/2;
		677	scale(pm->pd,pm->p,n);
		678	for(i=0;i<2*n;i+=2) gdImageSetPixel(image,pm->p[i],pm->p[i+1],pm->color[0]);
		679	if(tikz_file) {
		680	fprintf(tikz_file, "\\draw\[%s]", tikz_options(pm->color[0],pm->fill));
		681	for(i=0;i<2*n;i+=2)
		682	fprintf(tikz_file,"(%i,%i)circle(1pt)",pm->p[i],flip(pm->p[i+1]));
		683	fprintf(tikz_file,";\n");
		684	}
10	reyssat	685	}
		686
7675	bpr	687	/* lattice.
		688	* x0,y0,xv1,yv1,xv2,yv2,n1,n2,color */
10	reyssat	689	void obj_lattice(objparm *pm)
		690	{
17914	bpr	691	int n1,n2,i1,i2,xi1,yi1,xi2,yi2;
		692	double xv1,xv2,yv1,yv2;
		693	n1=pm->pd[6];n2=pm->pd[7]; if(n1<0 \|\| n2<0) return;
		694	if(n1>256) n1=256;
		695	if(n2>256) n2=256;
		696	scale(pm->pd,pm->p,1);
		697	scale2(pm->pd[2],pm->pd[3],&xv1,&yv1);
		698	scale2(pm->pd[4],pm->pd[5],&xv2,&yv2);
		699	if(tikz_file)
		700	fprintf(tikz_file,"\\draw[%s]", tikz_options(pm->color[0],0));
		701	for(i1=0;i1<n1;i1++) {
		702	xi1=rint(i1xv1)+pm->p[0]; yi1=rint(i1yv1)+pm->p[1];
		703	for(i2=0;i2<n2;i2++) {
		704	xi2=i2xv2+xi1;yi2=i2yv2+yi1;
		705	gdImageSetPixel(image,xi2,yi2,pm->color[0]);
		706	if(tikz_file) fprintf(tikz_file,"(%i,%i)circle(1pt)",xi2,flip(yi2));
		707	}
		708	}
		709	if(tikz_file) fprintf(tikz_file,";\n");
10	reyssat	710	}
		711
7675	bpr	712	/* arc */
18317	bpr	713	/trouble with gdImageArc as the angles are of type int /
18350	bpr	714	void myGdImageArc(gdImagePtr im, double cx, double cy, double rx, double ry, double t1, double t2, int color)
10	reyssat	715	{
18308	bpr	716	int i,nb;
18317	bpr	717	double dt, r=rx>ry?rx:ry;
18308	bpr	718	t2-=t1;
18317	bpr	719	t2-=360*floor(t2/360);
18325	bpr	720	if(t2==0) t2=360;
18317	bpr	721	t1=DEG;t2=DEG;
18308	bpr	722	nb = r*t2/3;
		723	dt = t2/nb;
		724	for (i=0; i<nb; ++i,t1+=dt)
18350	bpr	725	gdImageLine(im,rint(cx+rxcos(t1)),rint(cy+rysin(t1)),
		726	rint(cx+rxcos(t1+dt)),rint(cy+rysin(t1+dt)),color);
18317	bpr	727	}
		728
		729	void obj_arc(objparm *pm)
		730	{
		731	scale(pm->pd,pm->p,1);
		732	int rx=pm->pd[2]xscale/2, ry=pm->pd[3]yscale/2;
		733	myGdImageArc(image, pm->p[0], pm->p[1], rx, ry, pm->pd[4],pm->pd[5],pm->color[0]);
		734	if(tikz_file){
		735	pm->pd[5]-=pm->pd[4];
		736	pm->pd[5]-=360*floor(pm->pd[5]/360);
		737	pm->pd[5]+=pm->pd[4];
17914	bpr	738	fprintf(tikz_file,
18317	bpr	739	"\\draw \[%s] (%i,%i) arc (%f:%f:%i and %i);\n",
		740	tikz_options(pm->color[0],pm->fill),
		741	(int)rint(pm->p[0]+rxcos(DEGpm->pd[4])),
		742	flip((int)rint(pm->p[1]+rysin(DEGpm->pd[4]))),
		743	pm->pd[4],pm->pd[5],rx,-ry);
17574	bpr	744	}
		745	/FIXME echelle mauvaise/
12473	bpr	746	if(vimg_enable) vimg_arc(scale_buf[0],scale_buf[1],
		747	0.5pm->pd[2],0.5pm->pd[3],pm->pd[4],pm->pd[5]);
10	reyssat	748	}
		749
17676	bpr	750	void obj_angle(objparm *pm)
		751	{
18320	bpr	752	/* dans la doc: mettre les angles dans l'ordre ???? demander qu'ils soient entre 0 et 360 */
17676	bpr	753	double dpts[6];
		754	int pts[6], wx=rint(2pm->pd[2]xscale), wy=rint(2pm->pd[2]yscale);
		755	dpts[0]=pm->pd[0];
		756	dpts[1]=pm->pd[1];
		757	dpts[2]=pm->pd[0]+pm->pd[2]cos(DEGpm->pd[3]);
		758	dpts[3]=pm->pd[1]+pm->pd[2]sin(DEGpm->pd[3]);
		759	dpts[4]=pm->pd[0]+pm->pd[2]cos(DEGpm->pd[4]);
		760	dpts[5]=pm->pd[1]+pm->pd[2]sin(DEGpm->pd[4]);
		761	scale(dpts, pts, 3);
18350	bpr	762	gdImageLine(image,pts[0],pts[1],pts[2],pts[3],pm->color[0]);
		763	gdImageLine(image,pts[0],pts[1],pts[4],pts[5],pm->color[0]);
18308	bpr	764	gdImageArc(image,pts[0],pts[1],wx,wy,pm->pd[3],pm->pd[4],pm->color[0]);
17676	bpr	765	if(tikz_file) {
		766	fprintf(tikz_file, "\\draw\[%s, domain=%f:%f] plot ({%i+%fcos(\\x)}, {%i+%fsin(\\x)});\n",
		767	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	768	fprintf(tikz_file, "\\draw\[%s] (%i, %i) -- (%i, %i) (%i, %i) -- (%i, %i);\n",
		769	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	770	}
		771	}
7675	bpr	772	/* Ellipse: centre 0,1, width 2, hight 3, color 4,5,6 */
10	reyssat	773	void obj_ellipse(objparm *pm)
		774	{
12473	bpr	775	scale(pm->pd,pm->p,1);
17676	bpr	776	pm->p[2]=pm->pd[2]xscale; pm->p[3]=pm->pd[3]yscale;
18125	bpr	777	if(pm->fill==1 \|\| pm->fill==2) {
12473	bpr	778	gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,
		779	color_bounder);
		780	patchgdImageFillToBorder(image,pm->p[0],pm->p[1],
		781	color_bounder,pm->color[0]);
		782	}
17676	bpr	783	gdImageArc(image,pm->p[0],pm->p[1],rint(pm->p[2]),rint(pm->p[3]),0,360,pm->color[0]);
		784	if(tikz_file) fprintf(tikz_file,"\\draw\[%s] (%i,%i) ellipse (%i and %i);\n\n",
17912	bpr	785	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	786	if(vimg_enable) vimg_ellipse(scale_buf[0],scale_buf[1],0.5pm->pd[2],0.5pm->pd[3]);
10	reyssat	787	}
		788
17656	bpr	789	/* Circle radius in pixels*/
10	reyssat	790	void obj_circle(objparm *pm)
		791	{
12473	bpr	792	scale(pm->pd,pm->p,1);
		793	pm->p[2]=rint(pm->pd[2]); pm->p[3]=rint(pm->pd[2]);
18125	bpr	794	if(pm->fill==1 \|\| pm->fill==2) {
12473	bpr	795	gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,
		796	color_bounder);
		797	patchgdImageFillToBorder(image,pm->p[0],pm->p[1],
		798	color_bounder,pm->color[0]);
		799	}
		800	gdImageArc(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],0,360,pm->color[0]);
17676	bpr	801	if(tikz_file) fprintf(tikz_file, "\\draw\[%s] (%i, %i) circle (%i);\n",
		802	tikz_options(pm->color[0],pm->fill),pm->p[0],flip(pm->p[1]),(int) rint(pm->pd[2]/2.));
10	reyssat	803	}
17656	bpr	804	/* Circle, radius in xrange */
		805	void obj_circles(objparm *pm)
		806	{
		807	int i, n;
		808	n=(pm->pcnt)/3;
		809	for (i=0; i<n; ++i) scale(pm->pd+3i, pm->p+3i, 1);
17942	bpr	810	if (tikz_file) fprintf(tikz_file,"\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
17656	bpr	811	for(i=0;i<3*n;i+=3){
18125	bpr	812	if(pm->fill==1 \|\| pm->fill==2) {
18118	bpr	813	gdImageArc(image,pm->p[i],pm->p[i+1],
		814	rint(2pm->pd[i+2]xscale),rint(2pm->pd[i+2]xscale),0,360,
		815	color_bounder);
		816	patchgdImageFillToBorder(image,pm->p[i],pm->p[i+1],
		817	color_bounder,pm->color[0]);
		818	}
17656	bpr	819	gdImageArc(image,pm->p[i],pm->p[i+1],
18118	bpr	820	rint(2pm->pd[i+2]xscale),rint(2pm->pd[i+2]xscale),0,360,pm->color[0]);
17656	bpr	821	if (tikz_file){
17942	bpr	822	fprintf(tikz_file, "(%i, %i) circle (%i and %i)",
		823	pm->p[i],flip(pm->p[i+1]),(int) rint(pm->pd[i+2]xscale),(int) rint(pm->pd[i+2]xscale));
17656	bpr	824	}
		825	}
17942	bpr	826	if (tikz_file) fprintf(tikz_file,";\n");
17656	bpr	827	}
17676	bpr	828	/* ellipse, width in xrange,height in yrange */
17656	bpr	829	void obj_ellipses(objparm *pm)
		830	{
		831	int i, n;
		832	n=(pm->pcnt)/4;
		833	for (i=0; i<n; ++i) scale(pm->pd+4i, pm->p+4i, 1);
17943	bpr	834	if (tikz_file) fprintf(tikz_file,"\\draw\[%s]",tikz_options(pm->color[0],pm->fill));
17656	bpr	835	for(i=0;i<4*n;i+=4){
18125	bpr	836	if(pm->fill==1 \|\| pm->fill==2){
18123	bpr	837	gdImageArc(image,pm->p[i],pm->p[i+1],
		838	rint(pm->pd[i+2]xscale),rint(pm->pd[i+2]xscale),0,360,
		839	color_bounder);
		840	patchgdImageFillToBorder(image,pm->p[i],pm->p[i+1],
		841	color_bounder,pm->color[0]);
		842	} else
		843	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	844	if (tikz_file){
17943	bpr	845	fprintf(tikz_file, "(%i, %i) circle (%i and %i)",
		846	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	847	}
		848	}
17943	bpr	849	if (tikz_file) fprintf(tikz_file,";\n");
17656	bpr	850	}
17940	bpr	851	typedef enum tikz_fill_options {grid, dot, hatch, diamond} tfo;
17599	bpr	852	int compar(const void a, const void b) {return (int )b - (int )a;}
		853
17662	bpr	854	static void tikz_fill(int x, int y, int nx, int ny, int wall, int the_color, tfo opt)
17599	bpr	855	{
17662	bpr	856	int numpix=sizex*sizey, top = 0, a, c, cy, lx=0, rx=0, seed, nt,ct=0;
17599	bpr	857	int stack = xmalloc(numpixsizeof(int));
		858	int stack2 = xmalloc(numpixsizeof(int));
18132	bpr	859	if (nx==0) nx=1;
		860	if (ny==0) ny=1;
		861	nt = abs(nx*ny);
17599	bpr	862	seed = gdImageGetPixel(image,x,y);
		863	char *check = xmalloc(numpix);
		864	while (numpix--) check[numpix]=0;
		865	a=x+y*sizex;
		866	check[a]=1;
		867	stack[top++]=a;
		868	while(top)
		869	{
		870	a = stack[--top];
		871	x = a%sizex; y = a/sizex;
17662	bpr	872	c = gdImageGetPixel(image,x,y);
		873	if ((wall && (c == wall))\|\|(!wall && c!=seed))
		874	continue;
17599	bpr	875	if (x>0 && !check[a-1]) {check[a-1]=1; stack[top++]=a-1;}
		876	if (x+1<sizex && !check[a+1]) {check[a+1]=1; stack[top++]=a+1;}
		877	if (y>0 && !check[a-sizex]) {check[a-sizex]=1; stack[top++]=a-sizex;}
		878	if (y+1<sizey && !check[a+sizex]) {check[a+sizex]=1; stack[top++]=a+sizex;}
		879	switch(opt)
17621	bpr	880	{
17940	bpr	881	case grid: if(((x%nx)!=(nx/2))&&((y%ny)!=(ny/2))) continue; break;
		882	case dot: if(x%nx!=nx/2\|\|y%ny!=ny/2) continue; break;
17939	bpr	883	case hatch: if((nyx-nxy+nt)%nt) continue; break;
17940	bpr	884	case diamond: if((nyx+nxy)%nt && (nyx-nxy+nt)%nt)continue;
17621	bpr	885	default: break;
		886	}
17599	bpr	887	stack2[ct++]=a;
		888	}
		889	free(stack);
		890	free(check);
		891	if (ct==0) return;
17938	bpr	892	fprintf(tikz_file,"\\draw\[%s]", tikz_options(the_color,1));
17599	bpr	893	qsort(stack2, ct, sizeof(int), compar);
		894	cy=-1;
		895	while (ct--)
		896	{
		897	a = stack2[ct];
		898	x = a%sizex; y = a/sizex;
		899	if (y != cy \|\| x != rx+1)
		900	{
17621	bpr	901	if (cy >= 0)
		902	fprintf(tikz_file,
17933	bpr	903	"(%.2f,%.2f)rectangle(%.2f,%.2f)",
		904	lx-0.0,flip(cy-0.0),rx+0.0,flip(cy+0.0));
17621	bpr	905	cy = y;
		906	lx = rx = x;
17599	bpr	907	}
		908	else
17621	bpr	909	rx++;
17599	bpr	910	}
		911	fprintf(tikz_file,
17933	bpr	912	"(%.2f,%.2f)rectangle(%.2f,%.2f);\n",
		913	lx-0.0,flip(cy-0.0),rx+0.0,flip(cy+0.0));
17599	bpr	914	free(stack2);
		915	}
18125	bpr	916	void obj_dashed(objparm *pm){ dashed=1;}
		917	void obj_filled(objparm *pm){ filled=1;}
18159	bpr	918	void obj_noreset(objparm *pm){ noreset=1;}
		919	void obj_reset(objparm *pm){ noreset=0;dashed=0;filled=0;}
17599	bpr	920
7675	bpr	921	/* flood fill */
10	reyssat	922	void obj_fill(objparm *pm)
		923	{
12473	bpr	924	scale(pm->pd,pm->p,1);
17940	bpr	925	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],1,1,0,pm->color[0],grid);
12473	bpr	926	patchgdImageFill(image,pm->p[0],pm->p[1],pm->color[0]);
10	reyssat	927	}
		928
7675	bpr	929	/* flood fill to border*/
10	reyssat	930	void obj_fillb(objparm *pm)
		931	{
12473	bpr	932	scale(pm->pd,pm->p,1);
17940	bpr	933	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],1,1,pm->color[0],pm->color[1],grid);
12473	bpr	934	patchgdImageFillToBorder(image,pm->p[0],pm->p[1],pm->color[0],pm->color[1]);
10	reyssat	935	}
		936
		937	gdImagePtr himg;
		938
		939	int makehatchimage(int x, int y, int px, int py, int col)
		940	{
12473	bpr	941	int c1,c2,r,g,b;
		942	gdImagePtr saveimg;
		943	himg=gdImageCreate(x,y);
		944	c1=gdImageGetPixel(image,px,py);
		945	r=gdImageRed(image,c1); g=gdImageGreen(image,c1); b=gdImageBlue(image,c1);
		946	if(r>=255) r--; else r++; if(g>=255) g--; else g++; if(b>=255) b--; else b++;
		947	c1=gdImageColorAllocate(himg,r,g,b);
		948	r=gdImageRed(image,col); g=gdImageGreen(image,col); b=gdImageBlue(image,col);
		949	c2=gdImageColorAllocate(himg,r,g,b);
		950	if(width>1) {
		951	savew=-1; saveimg=image;
		952	image=himg; c2=widthcolor(width,c2); image=saveimg;
		953	c2=gdBrushed; savew=-1;
		954	}
		955	return c2;
10	reyssat	956	}
		957
7675	bpr	958	/* flood fill with hatching */
10	reyssat	959	void obj_hatchfill(objparm *pm)
		960	{
12473	bpr	961	int nx,ny,ax,ay, dir, c;
		962	scale(pm->pd,pm->p,1);
		963	nx=pm->pd[2]; ny=pm->pd[3]; ax=abs(nx); ay=abs(ny);
		964	if(nx==0 && ny==0) {fly_error("bad displacement vector"); return;}
		965	if((nx>0 && ny>0) \|\| (nx<0 && ny<0)) dir=1; else dir=-1;
		966	if(ax==0) {ax=100; dir=2;}
		967	if(ay==0) {ay=100; dir=3;}
		968	c=makehatchimage(ax,ay,pm->p[0],pm->p[1],pm->color[0]);
		969	switch(dir) {
		970	case -1: {
		971	gdImageLine(himg,0,ay-1,ax-1,0,c);
		972	if(width>1) {
		973	gdImageLine(himg,-ax,ay-1,-1,0,c);
		974	gdImageLine(himg,ax,ay-1,2*ax-1,0,c);
		975	gdImageLine(himg,0,-1,ax-1,-ay,c);
		976	gdImageLine(himg,0,2*ay-1,ax-1,ay,c);
7675	bpr	977	}
12473	bpr	978	break;
		979	}
		980	case 1: {
		981	gdImageLine(himg,0,0,ax-1,ay-1,c);
		982	if(width>1) {
		983	gdImageLine(himg,-ax,0,-1,ay-1,c);
		984	gdImageLine(himg,ax,0,2*ax-1,ay-1,c);
		985	gdImageLine(himg,0,-ay,ax-1,-1,c);
		986	gdImageLine(himg,0,ay,ax-1,2*ay-1,c);
7675	bpr	987	}
12473	bpr	988	break;
		989	}
		990	case 2: gdImageLine(himg,0,ay/2,ax-1,ay/2,c); break;
17574	bpr	991	case 3: gdImageLine(himg,ax/2,0,ax/2,ay-1,c); break;
12473	bpr	992	}
17662	bpr	993	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,0,pm->color[0],hatch);
12473	bpr	994	gdImageSetTile(image,himg);
		995	patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
		996	gdImageDestroy(himg);
		997	if(tiled) gdImageSetTile(image,tileimg);
10	reyssat	998	}
		999
7675	bpr	1000	/* flood fill with grid */
10	reyssat	1001	void obj_gridfill(objparm *pm)
		1002	{
12473	bpr	1003	int nx,ny, c;
		1004	scale(pm->pd,pm->p,1);
		1005	nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny);
		1006	if(nx==0 && ny==0) {fly_error("bad grid size"); return;}
		1007	c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]);
17940	bpr	1008	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,0,pm->color[0],grid);
12473	bpr	1009	gdImageLine(himg,0,ny/2,nx-1,ny/2,c); gdImageLine(himg,nx/2,0,nx/2,ny-1,c);
		1010	gdImageSetTile(image,himg);
		1011	patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
		1012	gdImageDestroy(himg);
		1013	if(tiled) gdImageSetTile(image,tileimg);
10	reyssat	1014	}
		1015
7675	bpr	1016	/* flood fill with double hatching */
10	reyssat	1017	void obj_diafill(objparm *pm)
		1018	{
12473	bpr	1019	int nx,ny, c;
		1020	scale(pm->pd,pm->p,1);
		1021	nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny);
		1022	if(nx==0 && ny==0) {fly_error("bad grid size"); return;}
		1023	c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]);
17940	bpr	1024	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,0,pm->color[0],diamond);
12473	bpr	1025	gdImageLine(himg,0,0,nx-1,ny-1,c); gdImageLine(himg,0,ny-1,nx-1,0,c);
		1026	gdImageSetTile(image,himg);
		1027	patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
		1028	gdImageDestroy(himg);
		1029	if(tiled) gdImageSetTile(image,tileimg);
10	reyssat	1030	}
		1031
17599	bpr	1032	/* flood fill with dots */
10	reyssat	1033	void obj_dotfill(objparm *pm)
		1034	{
12473	bpr	1035	int nx,ny, c;
		1036	scale(pm->pd,pm->p,1);
		1037	nx=pm->pd[2]; ny=pm->pd[3]; nx=abs(nx); ny=abs(ny);
		1038	if(nx==0 && ny==0) {fly_error("bad grid size"); return;}
		1039	c=makehatchimage(nx,ny,pm->p[0],pm->p[1],pm->color[0]);
17940	bpr	1040	if (tikz_file) tikz_fill(pm->p[0],pm->p[1],nx,ny,0,pm->color[0],dot);
12473	bpr	1041	gdImageSetPixel(himg,nx/2,ny/2,c);
		1042	gdImageSetTile(image,himg);
		1043	patchgdImageFill(image,pm->p[0],pm->p[1],gdTiled);
		1044	gdImageDestroy(himg);
		1045	if(tiled) gdImageSetTile(image,tileimg);
10	reyssat	1046	}
		1047
		1048	struct {
12473	bpr	1049	char *name;
		1050	gdFontPtr *fpt;
17964	bpr	1051	char *ftikz;
10	reyssat	1052	} fonttab[]={
17964	bpr	1053	{"tiny", &gdFontTiny,"0.3"},
		1054	{"small", &gdFontSmall,"0.5"},
		1055	{"medium",&gdFontMediumBold,"0.7"},
		1056	{"large", &gdFontLarge,"0.9"},
		1057	{"giant", &gdFontGiant,"1"},
		1058	{"huge", &gdFontGiant,"1"}
10	reyssat	1059	};
		1060
		1061	#define fonttab_no (sizeof(fonttab)/sizeof(fonttab[0]))
		1062
7675	bpr	1063	/* string */
10	reyssat	1064	void obj_string(objparm *pm)
		1065	{
12473	bpr	1066	char pp, pe, *p2;
		1067	int i;
		1068	pp=pm->str; pe=strchr(pp,','); if(pe==NULL) {
		1069	fly_error("too_few_parms"); return;
		1070	}
		1071	pe++=0; pp=find_word_start(pp); find_word_end(pp)=0;
		1072	pe=find_word_start(pe); strip_trailing_spaces(pe);
		1073	if(*pp) {
		1074	for(i=0;i<fonttab_no && strcmp(pp,fonttab[i].name)!=0; i++);
		1075	if(i>=fonttab_no) i=1;
		1076	}
		1077	else i=1;
		1078	scale(pm->pd,pm->p,1);
		1079	if(*pe=='"') {
		1080	p2=strchr(pe+1,'"');
		1081	if(p2 && (p2+1)==0) {p2=0; pe++;}
		1082	}
17585	bpr	1083	if(pm->fill){
12473	bpr	1084	gdImageStringUp(image,(fonttab[i].fpt),pm->p[0],pm->p[1], (unsigned char) pe,
		1085	pm->color[0]);
17964	bpr	1086	if(tikz_file) fprintf(tikz_file,"\\draw (%i,%i) node[scale=%s,rotate=90,color=%s,anchor=north west,inner sep=0pt] {\\(%s\\)};\n",
		1087	pm->p[0],flip(pm->p[1]),fonttab[i].ftikz,tikz_color(pm->color[0]),(unsigned char*) pe);
17585	bpr	1088	}
		1089	else {
12473	bpr	1090	gdImageString(image,(fonttab[i].fpt),pm->p[0],pm->p[1], (unsigned char) pe,
		1091	pm->color[0]);
17964	bpr	1092	if(tikz_file) fprintf(tikz_file,"\\draw (%i,%i) node[scale=%s,color=%s,anchor=north west,inner sep=0pt] {\\(%s\\)};\n",
		1093	pm->p[0],flip(pm->p[1]),fonttab[i].ftikz,tikz_color(pm->color[0]),(unsigned char*) pe);
17585	bpr	1094	}
10	reyssat	1095	}
17585	bpr	1096	/FIXME; giant does not exist in tikz and ... samething as huge /
7675	bpr	1097	/* point */
10	reyssat	1098	void obj_point(objparm *pm)
		1099	{
12473	bpr	1100	scale(pm->pd,pm->p,1);
		1101	gdImageSetPixel(image,pm->p[0],pm->p[1],pm->color[0]);
17917	bpr	1102	if(tikz_file) fprintf(tikz_file,"\\draw[%s] (%i,%i) circle (1pt);\n",
17574	bpr	1103	tikz_options(pm->color[0],0),pm->p[0],flip(pm->p[1]));
10	reyssat	1104	}
		1105
7675	bpr	1106	/* copy an image file */
10	reyssat	1107	void obj_copy(objparm *pm)
		1108	{
12473	bpr	1109	char *pp;
		1110	FILE *inf;
		1111	gdImagePtr insimg;
7615	bpr	1112
12473	bpr	1113	pp=find_word_start(pm->str);*find_word_end(pp)=0;
		1114	inf=open4read(pp);
		1115	if(inf==NULL) {
17599	bpr	1116	fly_error("file_does_not_exist"); return;
12473	bpr	1117	}
		1118	insimg=gdImageCreateFromGif(inf); fclose(inf);
		1119	if(insimg==NULL) {
		1120	fly_error("bad_gif"); return;
		1121	}
		1122	scale(pm->pd,pm->p,1);
		1123	if(pm->pd[2]<0 && pm->pd[3]<0 && pm->pd[4]<0 && pm->pd[5]<0)
		1124	gdImageCopy(image,insimg,pm->p[0],pm->p[1],0,0,
		1125	insimg->sx,insimg->sy);
		1126	else
		1127	gdImageCopy(image,insimg,pm->p[0],pm->p[1],pm->pd[2],pm->pd[3],
		1128	pm->pd[4]-pm->pd[2],pm->pd[5]-pm->pd[3]);
17587	bpr	1129	if(tikz_file) fprintf(tikz_file,
17618	bpr	1130	"\\node[anchor=north west,inner sep=0pt] at (%i,%i) {\\includegraphics\[width=.05\\linewidth]{%s}};\n",
17587	bpr	1131	pm->p[0],flip(pm->p[1]),pm->str);
		1132	gdImageDestroy(insimg);
		1133	/FIXME position non correcte; on ne peut pas utiliser une image gif /
10	reyssat	1134	}
		1135
7675	bpr	1136	/* copy an image file, with resizing */
10	reyssat	1137	void obj_copyresize(objparm *pm)
		1138	{
12473	bpr	1139	char *pp;
		1140	FILE *inf;
		1141	gdImagePtr insimg;
7615	bpr	1142
12473	bpr	1143	pp=find_word_start(pm->str);*find_word_end(pp)=0;
		1144	inf=open4read(pp);
		1145	if(inf==NULL) {
		1146	fly_error("file_not_found"); return;
		1147	}
		1148	insimg=gdImageCreateFromGif(inf); fclose(inf);
		1149	if(insimg==NULL) {
		1150	fly_error("bad_gif"); return;
		1151	}
		1152	scale(pm->pd+4,pm->p+4,2);
		1153	if(pm->pd[0]<0 && pm->pd[1]<0 && pm->pd[2]<0 && pm->pd[3]<0)
		1154	gdImageCopyResized(image,insimg,pm->p[4],pm->p[5],0,0,
		1155	pm->p[6]-pm->p[4]+1,pm->p[7]-pm->p[5]+1,
		1156	insimg->sx,insimg->sy);
		1157	else
		1158	gdImageCopyResized(image,insimg,pm->p[4],pm->p[5],pm->pd[0],pm->pd[1],
		1159	pm->p[6]-pm->p[4]+1,pm->p[7]-pm->p[5]+1,
		1160	pm->pd[2]-pm->pd[0]+1,pm->pd[3]-pm->pd[1]+1);
		1161	gdImageDestroy(insimg);
10	reyssat	1162	}
		1163
7675	bpr	1164	/* set brush or tile */
10	reyssat	1165	void obj_setbrush(objparm *pm)
		1166	{
12473	bpr	1167	char *pp;
		1168	FILE *inf;
		1169	gdImagePtr insimg;
10	reyssat	1170
12473	bpr	1171	pp=find_word_start(pm->str); *find_word_end(pp)=0;
		1172	inf=open4read(pp); if(inf==NULL) {
		1173	fly_error("file_not_found"); return;
		1174	}
		1175	insimg=gdImageCreateFromGif(inf); fclose(inf);
		1176	if(insimg==NULL) {
		1177	fly_error("bad_gif"); return;
		1178	}
		1179	if(pm->fill) {
		1180	gdImageSetTile(image,insimg); tiled=1; tileimg=insimg;
		1181	}
		1182	else {
		1183	gdImageSetBrush(image,insimg);brushed=1; brushimg=insimg;
		1184	}
10	reyssat	1185	}
		1186
7675	bpr	1187	/* kill brush */
10	reyssat	1188	void obj_killbrush(objparm *pm)
		1189	{
12473	bpr	1190	if(brushimg) gdImageDestroy(brushimg);
		1191	brushed=0; brushimg=NULL;
10	reyssat	1192	}
		1193
7675	bpr	1194	/* kill tile */
10	reyssat	1195	void obj_killtile(objparm *pm)
		1196	{
12473	bpr	1197	if(tileimg) gdImageDestroy(tileimg);
		1198	tiled=0; tileimg=NULL;
10	reyssat	1199	}
		1200
7675	bpr	1201	/* set style */
10	reyssat	1202	void obj_setstyle(objparm *pm)
		1203	{
12473	bpr	1204	int i,t;
		1205	t=pm->pcnt/3; if(t<=0) {
		1206	fly_error("too_few_parms"); return;
		1207	}
		1208	for(i=0;i<t;i++) {
		1209	if(pm->pd[3i]<0 \|\| pm->pd[3i+1]<0 \|\| pm->pd[3*i+2]<0)
		1210	pm->p[i]=gdTransparent;
		1211	else
		1212	pm->p[i]=getcolor(pm->pd[3i],pm->pd[3i+1],pm->pd[3*i+2]);
		1213	}
		1214	gdImageSetStyle(image,pm->p,t); styled=1;
10	reyssat	1215	}
		1216
7675	bpr	1217	/* kill style */
10	reyssat	1218	void obj_killstyle(objparm *pm)
		1219	{
12473	bpr	1220	styled=0;
10	reyssat	1221	}
		1222
7675	bpr	1223	/* set transparent */
10	reyssat	1224	void obj_transp(objparm *pm)
		1225	{
12473	bpr	1226	gdImageColorTransparent(image,pm->color[0]);
10	reyssat	1227	}
		1228
7675	bpr	1229	/* set interlace */
10	reyssat	1230	void obj_interlace(objparm *pm)
		1231	{
12473	bpr	1232	gdImageInterlace(image,1);
10	reyssat	1233	}
		1234
7675	bpr	1235	/* set linewidth */
10	reyssat	1236	void obj_linewidth(objparm *pm)
		1237	{
12473	bpr	1238	if(pm->pd[0]<1 \|\| pm->pd[0]>255) fly_error("bad_parms");
17574	bpr	1239	width=pm->pd[0];
17612	bpr	1240	if(tikz_file) fprintf(tikz_file,"\\pgfsetlinewidth{%fpt}\n",width*0.7);
10	reyssat	1241	}
		1242
8414	bpr	1243	/* set crosshairsize */
		1244	void obj_crosshairsize(objparm *pm)
		1245	{
12473	bpr	1246	if(pm->pd[0]<1 \|\| pm->pd[0]>255) fly_error("bad_parms");
		1247	else width2=pm->pd[0];
8414	bpr	1248	}
		1249
7675	bpr	1250	/* set x range */
10	reyssat	1251	void obj_xrange(objparm *pm)
		1252	{
12473	bpr	1253	double dd;
		1254	dd=pm->pd[1]-pm->pd[0];
		1255	xstart=pm->pd[0]; xscale=sizex/dd;
10	reyssat	1256	}
		1257
7675	bpr	1258	/* set y range */
10	reyssat	1259	void obj_yrange(objparm *pm)
		1260	{
12473	bpr	1261	double dd;
		1262	dd=pm->pd[1]-pm->pd[0];
		1263	ystart=pm->pd[1]; yscale=-sizey/dd;
10	reyssat	1264	}
		1265
7675	bpr	1266	/* set x et y range */
10	reyssat	1267	void obj_range(objparm *pm)
		1268	{
12473	bpr	1269	double d1,d2;
		1270	d1=pm->pd[1]-pm->pd[0]; d2=pm->pd[3]-pm->pd[2];
		1271	xstart=pm->pd[0]; xscale=(sizex-1)/d1;
		1272	ystart=pm->pd[3]; yscale=-(sizey-1)/d2;
10	reyssat	1273	}
		1274
7675	bpr	1275	/* set t range */
10	reyssat	1276	void obj_trange(objparm *pm)
		1277	{
12473	bpr	1278	/*double dd;
		1279	dd=pm->pd[1]-pm->pd[0];*/
		1280	tstart=pm->pd[0]; tend=pm->pd[1];
		1281	tranged=1;
10	reyssat	1282	}
		1283
7675	bpr	1284	/* set tstep (plotting step) */
10	reyssat	1285	void obj_tstep(objparm *pm)
		1286	{
12473	bpr	1287	int dd;
		1288	dd=pm->pd[0];
		1289	if(dd<3) {
		1290	fly_error("bad_step"); return;
		1291	}
		1292	if(dd>2000) dd=2000;
		1293	tstep=dd;
10	reyssat	1294	}
		1295
7675	bpr	1296	/* set plotjump (plot jump break threashold) */
10	reyssat	1297	void obj_plotjump(objparm *pm)
		1298	{
12473	bpr	1299	int dd;
		1300	dd=pm->pd[0];
		1301	if(dd<3) dd=3;
		1302	if(dd>MAX_SIZE) dd=MAX_SIZE;
		1303	plotjump=dd;
10	reyssat	1304	}
		1305
7675	bpr	1306	/* plot a curve, either parametric or explicit */
6578	bpr	1307	void _obj_plot(objparm *pm,int dash)
10	reyssat	1308	{
12473	bpr	1309	int i,j,n,dist,xx,yy,varpos;
		1310	char p1[MAX_LINELEN+1], p2[MAX_LINELEN+1];
		1311	char varn, pp;
		1312	double dc[2],t,v;
		1313	int ic[2],oc[2];
10	reyssat	1314
12473	bpr	1315	n=itemnum(pm->str);
		1316	if(n<1) {
		1317	fly_error("bad_parms"); return;
		1318	}
		1319	fnd_item(pm->str,1,p1); fnd_item(pm->str,2,p2);
		1320	if(n==1 && !tranged) v=sizex/xscale/tstep;
		1321	else v=(tend-tstart)/tstep;
		1322	if(n==1) varn="x"; else varn="t";
		1323	for(pp=varchr(p1,varn); pp; pp=varchr(pp,varn)) {
		1324	string_modify(p1,pp,pp+strlen(varn),EV_T);
		1325	pp+=strlen(EV_T);
		1326	}
		1327	for(pp=varchr(p2,varn); pp; pp=varchr(pp,varn)) {
		1328	string_modify(p2,pp,pp+strlen(varn),EV_T);
7675	bpr	1329	pp+=strlen(EV_T);
12473	bpr	1330	}
		1331	varpos=eval_getpos(EV_T);
		1332	if(varpos<0) return; /* unknown error */
		1333	evalue_compile(p1); evalue_compile(p2);
		1334	if(vimg_enable) vimg_plotstart();
17933	bpr	1335	if (tikz_file) fprintf(tikz_file,"\%\%begin plot\n\\draw\[%s]",
		1336	tikz_options(pm->color[0],-dash));
12473	bpr	1337	for(i=j=0;i<=tstep;i++) {
		1338	if(n==1) {
		1339	if(tranged) t=tstart+iv; else t=xstart+iv;
		1340	eval_setval(varpos,t); dc[0]=t; dc[1]=strevalue(p1);
10	reyssat	1341	}
17621	bpr	1342	else {
		1343	t=tstart+i*v; eval_setval(varpos,t);
		1344	dc[0]=strevalue(p1); dc[1]=strevalue(p2);
10	reyssat	1345	}
17621	bpr	1346	if(!isfinite(dc[0]) \|\| !isfinite(dc[1])) ic[0]=ic[1]=-BOUND;
		1347	else scale(dc,ic,1);
		1348	if(vimg_enable) vimg_plot1 (scale_buf[0],scale_buf[1]);
18019	bpr	1349	if(j==0) {
		1350	gdImageSetPixel(image,ic[0],ic[1],pm->color[0]); j++;
		1351	if (tikz_file)
		1352	fprintf(tikz_file,"(%i,%i)rectangle(%i,%i)",
		1353	ic[0],flip(ic[1]),ic[0]+1,flip(ic[1]+1));
		1354	}
		1355	else {
		1356	xx=ic[0]-oc[0]; yy=ic[1]-oc[1];
		1357	dist=sqrt(xxxx+yyyy);
		1358	if(dist>0){
		1359	if(dist>plotjump \|\| dist==1) {
		1360	gdImageSetPixel(image,ic[0],ic[1],pm->color[0]);
		1361	if (tikz_file)
		1362	fprintf(tikz_file,"(%i,%i)rectangle(%i,%i)",
		1363	ic[0],flip(ic[1]),ic[0]+1,flip(ic[1]+1));
		1364	}
		1365	else {
		1366	if (dash==1)
18105	georgesk	1367	myDashedLine(image,oc[0],oc[1],ic[0],ic[1],pm->color[0]);
18019	bpr	1368	else
		1369	gdImageLine(image,oc[0],oc[1],ic[0],ic[1],pm->color[0]);
		1370	if (tikz_file)
		1371	fprintf(tikz_file, "(%i,%i)--(%i,%i)",
17932	bpr	1372	oc[0],flip(oc[1]),ic[0],flip(ic[1]));
18019	bpr	1373	}
17621	bpr	1374	}
		1375	}
18019	bpr	1376	memmove(oc,ic,sizeof(oc));
12473	bpr	1377	}
17932	bpr	1378	if (tikz_file) fprintf(tikz_file,";\n\%\%end plot\n");
12473	bpr	1379	if(vimg_enable) vimg_plotend();
10	reyssat	1380	}
		1381
6578	bpr	1382	void obj_plot(objparm *pm) { _obj_plot( pm,0) ;}
18352	bpr	1383	void obj_dplot(objparm *pm) { _obj_plot( pm,1) ;}
6578	bpr	1384
7675	bpr	1385	/* set levelcurve granularity */
10	reyssat	1386	void obj_levelstep(objparm *pm)
		1387	{
12473	bpr	1388	int dd;
		1389	dd=pm->pd[0];
		1390	if(dd<1) return;
		1391	if(dd>16) dd=16;
		1392	lstep=dd;
10	reyssat	1393	}
		1394
7675	bpr	1395	/* level curve */
10	reyssat	1396	void obj_levelcurve(objparm *pm)
		1397	{
12473	bpr	1398	char fn[MAX_LINELEN+1],tc[MAX_LINELEN+1];
		1399	int n,i;
		1400	double d;
		1401	leveldata *ld;
7615	bpr	1402
12473	bpr	1403	ld=xmalloc(sizeof(leveldata)+16);
		1404	ld->xname="x"; ld->yname="y";
		1405	ld->xsize=sizex; ld->ysize=sizey; ld->datacnt=0;
		1406	ld->xrange[0]=xstart; ld->xrange[1]=sizex/xscale+xstart;
		1407	ld->yrange[0]=sizey/yscale+ystart; ld->yrange[1]=ystart;
		1408	ld->grain=lstep;
		1409	fnd_item(pm->str,1,fn); ld->fn=fn;
		1410	n=itemnum(pm->str);
		1411	if(n<=1) {ld->levelcnt=1; ld->levels[0]=0;}
		1412	else {
		1413	if(n>LEVEL_LIM+1) n=LEVEL_LIM+1;
		1414	for(i=0;i<n-1;i++) {
		1415	fnd_item(pm->str,i+2,tc);
		1416	d=strevalue(tc);
		1417	if(isfinite(d)) ld->levels[i]=d; else ld->levels[i]=0;
10	reyssat	1418	}
12473	bpr	1419	ld->levelcnt=n-1;
		1420	}
		1421	levelcurve(ld);
17932	bpr	1422	if (tikz_file)
		1423	fprintf(tikz_file,"\%\%begin levelcurve\n\\draw\[%s]"
18065	bpr	1424	,tikz_options(pm->color[0],1));
12473	bpr	1425	for(i=0;i<ld->datacnt;i++) {
		1426	gdImageSetPixel(image,ld->xdata[i],ld->ydata[i],pm->color[0]);
17584	bpr	1427	if (tikz_file)
		1428	fprintf(tikz_file,
17933	bpr	1429	"(%i,%i)rectangle(%i,%i)",
		1430	ld->xdata[i],flip(ld->ydata[i]),ld->xdata[i]+1,flip(ld->ydata[i]+1));
12473	bpr	1431	}
17932	bpr	1432	if (tikz_file) fprintf(tikz_file,";\n\%\%end levelcurve\n");
12473	bpr	1433	free(ld);
10	reyssat	1434	}
		1435
7675	bpr	1436	/* set animation step */
10	reyssat	1437	void obj_animstep(objparm *pm)
		1438	{
12473	bpr	1439	animstep=pm->pd[0];
		1440	setvar("animstep",pm->pd[0]);
10	reyssat	1441	}
		1442
7675	bpr	1443	/* Starts a line counting */
10	reyssat	1444	void obj_linecount(objparm *pm)
		1445	{
12473	bpr	1446	linecnt=pm->pd[0];
10	reyssat	1447	}
		1448
7675	bpr	1449	/* marks end of execution */
10	reyssat	1450	void obj_end(objparm *pm)
		1451	{
12473	bpr	1452	fly_error("successful_end_of_execution");
10	reyssat	1453	}
		1454
7675	bpr	1455	/* output */
10	reyssat	1456	void obj_output(objparm *pm)
		1457	{
12473	bpr	1458	char *p, namebuf[1024];
		1459	p=find_word_start(pm->str); *find_word_end(p)=0;
		1460	snprintf(namebuf,sizeof(namebuf),"%s",imagefilename);
		1461	snprintf(imagefilename,sizeof(imagefilename),"%s",p);
		1462	output();
		1463	snprintf(imagefilename,sizeof(imagefilename),"%s",namebuf);
10	reyssat	1464	}
		1465
7675	bpr	1466	/* vimgfile */
1024	bpr	1467	void obj_vimgfile(objparm *pm)
		1468	{
12473	bpr	1469	char *p;
		1470	p=find_word_start(pm->str); *find_word_end(p)=0;
		1471	snprintf(vimgfilename,sizeof(vimgfilename),"%s",p);
		1472	if(vimg_ready) vimg_close();
1024	bpr	1473	}
		1474
7675	bpr	1475	/* vimg enable/disable */
1024	bpr	1476	void obj_vimg(objparm *pm)
		1477	{
12473	bpr	1478	vimg_enable=pm->pd[0];
		1479	if(vimg_enable>0 && vimg_ready==0) vimg_init();
1024	bpr	1480	}
		1481
7675	bpr	1482	/* Set affine transformation */
10	reyssat	1483	void obj_affine(objparm *pm)
		1484	{
12473	bpr	1485	int i;
		1486	for(i=0;i<4;i++) matrix[i]=pm->pd[i];
		1487	transx=pm->pd[4]; transy=pm->pd[5];
		1488	transform=1;
10	reyssat	1489	}
		1490
7675	bpr	1491	/* Set affine transformation */
10	reyssat	1492	void obj_rotation(objparm *pm)
		1493	{
12473	bpr	1494	double r;
		1495	r=M_PI*pm->pd[0]/180;
		1496	matrix[0]=matrix[3]=cos(r);
		1497	matrix[1]=-sin(r); matrix[2]=sin(r);
		1498	transform=1;
10	reyssat	1499	}
		1500
8419	bpr	1501	/* Set linear transformation */
10	reyssat	1502	void obj_linear(objparm *pm)
		1503	{
12473	bpr	1504	int i;
		1505	for(i=0;i<4;i++) matrix[i]=pm->pd[i];
		1506	transform=1;
10	reyssat	1507	}
		1508
8419	bpr	1509	/* Set translation transformation */
10	reyssat	1510	void obj_translation(objparm *pm)
		1511	{
12473	bpr	1512	transx=pm->pd[0]; transy=pm->pd[1];
10	reyssat	1513	}
		1514
8419	bpr	1515	/* kill affine transformation */
10	reyssat	1516	void obj_killaffine(objparm *pm)
		1517	{
12473	bpr	1518	matrix[0]=matrix[3]=1;
		1519	matrix[1]=matrix[2]=transx=transy=0;
		1520	transform=0;
10	reyssat	1521	}
		1522
8419	bpr	1523	/* kill affine transformation */
10	reyssat	1524	void obj_killlinear(objparm *pm)
		1525	{
12473	bpr	1526	matrix[0]=matrix[3]=1;
		1527	matrix[1]=matrix[2]=0;
		1528	transform=0;
10	reyssat	1529	}
		1530
8419	bpr	1531	/* kill affine transformation */
10	reyssat	1532	void obj_killtranslation(objparm *pm)
		1533	{
12473	bpr	1534	transx=transy=0;
10	reyssat	1535	}
		1536
		1537	/*** Les modifs de Jean-Christophe Leger Fev 2006 ***/
		1538
7615	bpr	1539	/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES, une liste de 4 nombres reels pour la matrice */
10	reyssat	1540	void obj_setmatrix(objparm *pm)
		1541	{
		1542	int nummatrix = (int) (pm->pd[0]);
		1543	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1544	fly_error("bad_matrix_number");
10	reyssat	1545	return;
		1546	}
		1547	matrices_pavage[nummatrix][0] = pm->pd[1];
		1548	matrices_pavage[nummatrix][1] = pm->pd[2];
		1549	matrices_pavage[nummatrix][2] = pm->pd[3];
		1550	matrices_pavage[nummatrix][3] = pm->pd[4];
		1551	}
		1552
7615	bpr	1553	/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */
10	reyssat	1554	void obj_resetmatrix(objparm *pm)
		1555	{
		1556	int nummatrix = (int) (pm->pd[0]);
		1557	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1558	fly_error("bad_matrix_number");
10	reyssat	1559	return;
		1560	}
		1561	matrices_pavage[nummatrix][0] = 1;
		1562	matrices_pavage[nummatrix][1] = 0;
		1563	matrices_pavage[nummatrix][2] = 0;
		1564	matrices_pavage[nummatrix][3] = 1;
		1565
		1566	}
7615	bpr	1567	/* arguments: un numero de vecteur entre 1 et JC_NB_MATRICES, une liste de 2 nombres reels pour le vecteur */
10	reyssat	1568	void obj_setvector(objparm *pm)
		1569	{
		1570	int nummatrix = (int) (pm->pd[0]);
		1571	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1572	fly_error("bad_vector_number");
10	reyssat	1573	return;
		1574	}
		1575	vecteurs_pavage[nummatrix][0] = pm->pd[1];
		1576	vecteurs_pavage[nummatrix][1] = pm->pd[2];
		1577	}
		1578
7615	bpr	1579	/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */
10	reyssat	1580	void obj_resetvector(objparm *pm)
		1581	{
		1582	int nummatrix = (int) (pm->pd[0]);
		1583	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1584	fly_error("bad_vector_number");
10	reyssat	1585	return;
		1586	}
		1587	vecteurs_pavage[nummatrix][0] = 0;
		1588	vecteurs_pavage[nummatrix][1] = 0;
		1589	}
		1590
7615	bpr	1591	/* 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	1592	void obj_settransform(objparm *pm)
		1593	{
		1594	int nummatrix = (int) (pm->pd[0]);
		1595	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1596	fly_error("bad_vector_number");
10	reyssat	1597	return;
		1598	}
		1599	matrices_pavage[nummatrix][0] = pm->pd[1];
		1600	matrices_pavage[nummatrix][1] = pm->pd[2];
		1601	matrices_pavage[nummatrix][2] = pm->pd[3];
		1602	matrices_pavage[nummatrix][3] = pm->pd[4];
		1603	vecteurs_pavage[nummatrix][0] = pm->pd[5];
		1604	vecteurs_pavage[nummatrix][1] = pm->pd[6];
		1605	}
		1606
		1607
7615	bpr	1608	/* arguments: un numero de matrice entre 1 et JC_NB_MATRICES */
10	reyssat	1609	void obj_resettransform(objparm *pm)
		1610	{
		1611	int nummatrix = (int) (pm->pd[0]);
		1612	if((nummatrix < 1) \|\|(nummatrix>JC_NB_MATRICES)) {
8195	bpr	1613	fly_error("bad_vector_number");
10	reyssat	1614	return;
		1615	}
		1616	vecteurs_pavage[nummatrix][0] = 0;
		1617	vecteurs_pavage[nummatrix][1] = 0;
		1618	matrices_pavage[nummatrix][0] = 1;
		1619	matrices_pavage[nummatrix][1] = 0;
		1620	matrices_pavage[nummatrix][2] = 0;
		1621	matrices_pavage[nummatrix][3] = 1;
		1622	}
		1623
7615	bpr	1624	/* arguments: une liste de 6 nombres reels pour les coordonnees de l'origine et des vecteurs de base */
10	reyssat	1625	void obj_setparallelogram(objparm *pm)
		1626	{
		1627	int i;
		1628	for(i=0;i<6;i++) parallogram_fonda[i]=pm->pd[i];
		1629	}
		1630
		1631	/* arguments :aucun */
		1632	void obj_resetparallelogram(objparm *pm)
		1633	{
		1634	parallogram_fonda[0]=0;
		1635	parallogram_fonda[1]=0;
		1636	parallogram_fonda[2]=100;
		1637	parallogram_fonda[3]=0;
		1638	parallogram_fonda[4]=0;
		1639	parallogram_fonda[5]=100;
		1640	}
		1641
		1642	/* argument : la liste des numeros des matrices a faire agir, le nom du fichier de l'image a inclure */
		1643	void obj_multicopy(objparm *pm)
		1644	{
12473	bpr	1645	char pp,pe,*cptr;
		1646	FILE *inf;
		1647	gdImagePtr insimg;
		1648	int i,j;
		1649	int imax,jmax;
		1650	int c; /* la couleur reperee */
		1651	int mat;
		1652	int nummatrices[JC_NB_MATRICES];
		1653	double pt[2]; /* les coordonnees math. du point repere dans le parallelogramme */
		1654	double ptr[2]; /* les coordonnees math. du point transforme */
		1655	int pti[2]; /* les coordonnees img du point a placer sur le canevas */
		1656	int t;
		1657	/* gestion palette de couleur de l'image a inserer */
		1658	int colorMap[gdMaxColors];
		1659	int comptmat=0; /* combien de matrices en tout ? */
7615	bpr	1660
12473	bpr	1661	for (i=0; (i<gdMaxColors); i++) {
		1662	colorMap[i] = (-1);
		1663	}
10	reyssat	1664
12473	bpr	1665	/* Gestion des parametres la liste est censee finir avec le nom du fichier */
		1666	t=pm->pcnt-1; /* il faut enlever le nom de fichier ! c'est le nombre de parametres en plus */
		1667	pp=find_word_start(pm->str);
		1668	/* visiblement find_word_start n'arrive pas a trouver le dernier mot dans un contexte ou le nombre de parameters est variable
10	reyssat	1669	* on cherche donc l'emplacement de la derniere virgule:
		1670	* il y en a une car t>0, on retrouve ensuite le debut de mot
		1671	*/
12473	bpr	1672	for(pe=pp;pe!=0;pe++);/ trouve la fin de la chaine */
		1673	if(t>0){
		1674	for(cptr = pe; cptr > pp && *cptr != ','; cptr--);
		1675	pp=find_word_start(cptr+1);
		1676	}
		1677	pe=find_word_end(pp);pe=0; / strip junk final */
		1678	// printf("pp contient %s\n",pp);
10	reyssat	1679
		1680
12473	bpr	1681	inf=open4read(pp);
		1682	if(inf==NULL) {
		1683	fly_error("file_not_exist"); return;
		1684	}
		1685	insimg=gdImageCreateFromGif(inf); fclose(inf);
		1686	if(insimg==NULL) {
		1687	fly_error("bad_gif"); return;
		1688	}
10	reyssat	1689
12473	bpr	1690	/* On recupere les numeros des matrices/vecteurs a faire agir,
		1691	* s'il n'y en a pas, on les fait toutes agir
		1692	*/
		1693	for(i=0;i<t && i< JC_NB_MATRICES;i++) {
		1694	if(pm->pd[i]>=1 && pm->pd[i]<=JC_NB_MATRICES){
		1695	nummatrices[comptmat] = pm->pd[i];
		1696	comptmat++;
10	reyssat	1697	}
12473	bpr	1698	}
		1699	if(t<=0){
		1700	for(i=0;i<JC_NB_MATRICES;i++) {
		1701	nummatrices[i] = i+1;
10	reyssat	1702	}
12473	bpr	1703	comptmat=JC_NB_MATRICES;
		1704	}
10	reyssat	1705
7615	bpr	1706
12473	bpr	1707	imax = gdImageSX(insimg);
		1708	jmax = gdImageSY(insimg);
10	reyssat	1709
12473	bpr	1710	for(i=0;i<imax;i++){
		1711	for(j=0;j<jmax;j++){
		1712	int nc;
		1713	c=gdImageGetPixel(insimg,i,j);
		1714	/* Le code suivant est une copie du code dans gdImageCopy Added 7/24/95: support transparent copies */
		1715	if (gdImageGetTransparent(insimg) != c) {
		1716	/* Have we established a mapping for this color? */
		1717	if (colorMap[c] == (-1)) {
		1718	/* If it's the same image, mapping is trivial, dans notre cas ca n'arrive jamais... */
		1719	if (image == insimg) {
		1720	nc = c;
		1721	} else {
		1722	/* First look for an exact match */
		1723	nc = gdImageColorExact(image,
		1724	insimg->red[c], insimg->green[c],
		1725	insimg->blue[c]);
		1726	}
		1727	if (nc == (-1)) {
		1728	/* No, so try to allocate it */
		1729	nc = gdImageColorAllocate(image,
		1730	insimg->red[c], insimg->green[c],
7675	bpr	1731	insimg->blue[c]);
12473	bpr	1732	/* If we're out of colors, go for the closest color */
		1733	if (nc == (-1)) {
		1734	nc = gdImageColorClosest(image,
7675	bpr	1735	insimg->red[c], insimg->green[c],
		1736	insimg->blue[c]);
12473	bpr	1737	}
		1738	}
		1739	colorMap[c] = nc;
		1740	}
10	reyssat	1741
12473	bpr	1742	pt[0]= i(parallogram_fonda[2])/(imax-1)+(jmax-j)(parallogram_fonda[4])/(jmax-1)+parallogram_fonda[0];
		1743	pt[1]= i(parallogram_fonda[3])/(imax-1)+(jmax-j)(parallogram_fonda[5])/(jmax-1)+parallogram_fonda[1];
		1744	for(mat=0;mat<comptmat;mat++){
7675	bpr	1745	double *matricecourante = matrices_pavage[nummatrices[mat]];
		1746	double *vecteurcourant = vecteurs_pavage[nummatrices[mat]];
		1747	ptr[0] = matricecourante[0]pt[0]+matricecourante[1]pt[1]+vecteurcourant[0];
		1748	ptr[1] = matricecourante[2]pt[0]+matricecourante[3]pt[1]+vecteurcourant[1];
		1749	scale(ptr,pti,1);
		1750	gdImageSetPixel(image,pti[0],pti[1],colorMap[c]);
12473	bpr	1751	}
10	reyssat	1752	}
		1753	}
12473	bpr	1754	}
		1755	gdImageDestroy(insimg);
10	reyssat	1756	}
		1757
		1758	/** Fin modifs JC Fev 06 ****/
		1759
7675	bpr	1760	/* get color from value */
10	reyssat	1761	int calc_color(char p, struct objtab o)
		1762	{
12473	bpr	1763	int k, cc[3];
		1764	char buf[MAX_LINELEN+1];
		1765	for(k=0;k<3;k++) {
		1766	fnd_item(p,k+1,buf);
		1767	cc[k]=strevalue(buf);
		1768	}
		1769	collapse_item(p,3);
		1770	if(cc[0]==-1 && cc[1]==-1 && cc[2]==-255) {
10	reyssat	1771
12473	bpr	1772	if(brushed && o->subst&1) return gdBrushed;
		1773	else return color_black;
		1774	}
		1775	if(cc[0]==-1 && cc[1]==-255 && cc[2]==-1) {
		1776	if(styled && o->subst&2) return gdStyled;
		1777	else return color_black;
		1778	}
		1779	if(cc[0]==-255 && cc[1]==-1 && cc[2]==-1) {
		1780	if(tiled && o->fill_tag==1) return gdTiled;
		1781	else return color_black;
		1782	}
		1783	return getcolor(cc[0],cc[1],cc[2]);
10	reyssat	1784	}
		1785
7675	bpr	1786	/* Routine to parse parameters */
10	reyssat	1787	int parse_parms(char p,objparm pm,struct objtab *o)
		1788	{
12473	bpr	1789	char buf[MAX_LINELEN+1];
		1790	char p1, p2;
		1791	int j,t,c,c1,c2;
7615	bpr	1792
12473	bpr	1793	c=o->color_pos;c1=c2=0;
		1794	pm->color[0]=pm->color[1]=0;
		1795	if(c>0) c1=c;
		1796	if(c<0) c2=-c;
		1797	c=c1+c2;
		1798	t=itemnum(p);if(t<o->required_parms+3*c) return -1;
		1799	if(c1>0 && t>o->required_parms+3c) t=o->required_parms+3c;
		1800	pm->pcnt=t-3*c;
		1801	if(pm->pcnt>MAX_PARMS) pm->pcnt=MAX_PARMS;
		1802	if(c2>0) {
		1803	for(j=0;j<2 && j<c2; j++) pm->color[j]=calc_color(p,o);
		1804	}
		1805	snprintf(buf,sizeof(buf),"%s",p);
		1806	for(j=0, p1=buf; j<pm->pcnt; j++, p1=p2) {
		1807	p2=find_item_end(p1); if(p2) p2++=0;
		1808	p1=find_word_start(p1);
		1809	if(*p1) pm->pd[j]=strevalue(p1); else pm->pd[j]=0;
		1810	if(!isfinite(pm->pd[j])) {
		1811	if(j<o->required_parms) return -1;
		1812	else {pm->pd[j]=0;break;}
10	reyssat	1813	}
12473	bpr	1814	}
		1815	collapse_item(p,o->required_parms);
		1816	if(c1>0) {
		1817	for(j=0;j<c1 && j<2; j++) pm->color[j]=calc_color(p,o);
		1818	}
		1819	if(width>1 && o->subst&1 && pm->color[0]!=gdBrushed
		1820	&& pm->color[0]!=gdStyled && pm->color[0]!=gdTiled) {
		1821	pm->color[1]=pm->color[0];
		1822	pm->color[0]=widthcolor(width,pm->color[0]);
		1823	}
		1824	pm->fill=o->fill_tag;
18131	bpr	1825	if(o->required_parms!=0){
		1826	if(dashed) {
		1827	if(pm->fill==1) pm->fill=2;
		1828	if(pm->fill==0) pm->fill=-1;
18159	bpr	1829	if(noreset==0) dashed=0;
18131	bpr	1830	}
		1831	if(filled) {
		1832	if(pm->fill==-1) pm->fill=2;
		1833	if(pm->fill==0) pm->fill=1;
18159	bpr	1834	if(noreset==0) filled=0;
18131	bpr	1835	}
		1836	}
12473	bpr	1837	ovlstrcpy(pm->str,p); return 0;
10	reyssat	1838	}
		1839
8068	bpr	1840	/* Create the struct objparm pm corresponding to the objparm p
		1841	* Execute a command. Returns 0 if OK.
		1842	*/
10	reyssat	1843	int obj_main(char *p)
		1844	{
12473	bpr	1845	int i;
		1846	char pp,name,*pt;
		1847	char tbuf2[MAX_LINELEN+1];
		1848	struct objparm pm;
10	reyssat	1849
12473	bpr	1850	p=find_word_start(p);
		1851	if(p==exec_prefix_char \|\| p==0) return 0; /* comment */
		1852	name=p;
		1853	pp=find_name_end(p);
		1854	pt=find_word_start(pp); if(pt=='=') pt=' ';
		1855	if(pt==':' && (pt+1)=='=') pt=(pt+1)=' ';
		1856	pp=find_word_end(p);
		1857	if(*pp!=0) {
		1858	*(pp++)=0; pp=find_word_start(pp);
		1859	}
		1860	if(strlen(p)==1 \|\| (strlen(p)==2 && isdigit(*(p+1)))) {
		1861	setvar(p,strevalue(pp)); return 0;
		1862	}
		1863	/* search the number of the object */
		1864	i=search_list(objtab,obj_no,sizeof(objtab[0]),name);
		1865	if(i<0) {
		1866	fly_error("bad_cmd"); return 1;
		1867	}
		1868	if(image==NULL && (objtab[i].color_pos \|\| objtab[i].required_parms>2)) {
		1869	fly_error("image_not_defined"); return 1;
		1870	}
		1871	ovlstrcpy(tbuf2,pp);
		1872	if(objtab[i].color_pos \|\| objtab[i].routine==obj_setstyle) {
		1873	substit(tbuf2);
		1874	}
		1875	if(parse_parms(tbuf2,&pm,objtab+i)!=0) fly_error("bad_parms");
		1876	else objtab[i].routine(&pm);
		1877	return 0;
10	reyssat	1878	}
18352	bpr	1879
		1880	/* for hyperbolic geodesics, return data for obj_hypgeods + a point on the arc
		1881	to be used for filling hyperbolic triangle*/
		1882	int hypgeodaux(double q, double res)
		1883	{
		1884	double r,cx,cy,a1,a2,a3,tmp,
		1885	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],
		1886	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],
		1887	dy = -2q[1]q[2]+2q[0]q[3];
18447	bpr	1888	if (dydy1e4 <= nxnx+nyny){
18352	bpr	1889	res[5]=(q[0]+q[2])/2;
		1890	res[6]=(q[1]+q[3])/2;
		1891	return 0;}
		1892	cx = ny/dy; cy=-nx/dy;
		1893	a1 = atan2(q[1]-cy, q[0]-cx);
		1894	a2 = atan2(q[3]-cy, q[2]-cx);
		1895	if (fabs(a2-a1)>M_PI){if(a1<a2) a1+=2M_PI; else a2+=2M_PI;};
		1896	a3 = (a1+a2)/2;
		1897	if(a1>a2) {tmp=a1; a1=a2; a2=tmp;}
		1898	r = sqrt(cxcx+cycy-1);
		1899	res[0]=cx;
		1900	res[1]=cy;
		1901	res[2]=r;
		1902	res[3]=a1;
		1903	res[4]=a2;
		1904	res[5]=cx+r*cos(a3);
		1905	res[6]=cy+r*sin(a3);
		1906	return 1;
		1907	}
		1908	/* hyperbolic geodesics from x1,y1 to x2,y2, x3,y3 to x4,y4 in Poincar� disk */
		1909	void obj_hypgeods(objparm *pm)
		1910	{
		1911	int i, *qq=pm->p;
		1912	double rx,ry,res[7];
		1913	if (tikz_file) fprintf(tikz_file, "\\draw[%s]",tikz_options(pm->color[0],pm->fill));
		1914	for (i = 0; i < pm->pcnt; i+=4)
		1915	if (hypgeodaux(pm->pd+i,res)){
		1916	scale2(res[2],res[2],&rx,&ry);
		1917	scale(res,qq,1);
		1918	myGdImageArc(image,qq[0],qq[1],rx,ry,res[3]/DEG,res[4]/DEG,pm->color[0]);
18353	bpr	1919	if(tikz_file)
		1920	fprintf(tikz_file,"(%i,%i)arc(%f:%f:%i and %i)",
		1921	(int)rint(qq[0]+rx*cos(res[3])),
		1922	flip((int)rint(qq[1]+ry*sin(res[3]))),
		1923	res[3]/DEG,res[4]/DEG,(int)rint(rx),-(int)rint(ry));
		1924	}
18352	bpr	1925	else {
		1926	scale(pm->pd+i,qq,2);
		1927	gdImageLine(image,qq[0],qq[1],qq[2],qq[3],pm->color[0]);
		1928	if(tikz_file) fprintf(tikz_file,"(%i,%i)--(%i,%i)",
		1929	qq[0],flip(qq[1]),qq[2],flip(qq[3]));
		1930	}
		1931	if(tikz_file) fprintf(tikz_file,";\n");
		1932	}
		1933
		1934	/* hyperbolic triangle, can be filled */
		1935	void obj_hyptriangle(objparm *pm)
		1936	{
		1937	double rx,ry,data[8],res[7];
		1938	int i, *qq=pm->p;
		1939	for(i=0; i<8; i++) data[i]=pm->pd[i%6];
18358	bpr	1940	if (tikz_file) fprintf(tikz_file, "\\draw[%s]",tikz_options(pm->color[0],0));
18352	bpr	1941	for(i=0; i<3; i++)
		1942	if(hypgeodaux(data+2*i,res)){
		1943	scale2(res[2],res[2],&rx,&ry);
		1944	scale(res,qq,1);
		1945	myGdImageArc(image,qq[0],qq[1],rx,ry,res[3]/DEG,res[4]/DEG,pm->color[0]);
		1946	if(tikz_file)
		1947	fprintf(tikz_file, "(%i,%i) arc (%f:%f:%i and %i)",
		1948	(int)rint(qq[0]+rx*cos(res[3])),
		1949	flip((int)rint(qq[1]+ry*sin(res[3]))),
		1950	res[3]/DEG,res[4]/DEG,(int)rint(rx),-(int)rint(ry));
		1951	}
		1952	else {
		1953	scale(data+2*i,qq,2);
		1954	gdImageLine(image,qq[0],qq[1],qq[2],qq[3],pm->color[0]);
		1955	if(tikz_file) fprintf(tikz_file,"(%i,%i)--(%i,%i)",
		1956	qq[0],flip(qq[1]),qq[2],flip(qq[3]));
		1957	}
		1958	if(tikz_file) fprintf(tikz_file,";\n");
		1959	if(pm->fill){
		1960	data[0]=res[5];
		1961	data[1]=res[6];
		1962	hypgeodaux(data,res);
		1963	scale(res+5,qq,1);
		1964	//patchgdImageFill(image,qq[0],qq[1],pm->color[0]);
		1965	patchgdImageFillToBorder(image,qq[0],qq[1],pm->color[0],pm->color[0]);
		1966	if(tikz_file) tikz_fill(qq[0],qq[1],1,1,0,pm->color[0],grid);
		1967	}
		1968	}
		1969
18432	bpr	1970	/* polygon */
		1971	void obj_hyppoly(objparm *pm)
		1972	{
		1973	double rx,ry,data[1000],res[7];
		1974	int i,*qq=pm->p;
		1975	int cnt=(pm->pcnt)/2;
		1976	scale(pm->pd,pm->p,cnt);
		1977	for(i=0; i<pm->pcnt+2; i++) data[i]=pm->pd[i%pm->pcnt];
		1978	if (tikz_file) fprintf(tikz_file, "\\draw[%s]",tikz_options(pm->color[0],0));
		1979	for(i=0; i<cnt; i++){
		1980	if(hypgeodaux(data+2*i,res)){
		1981	scale2(res[2],res[2],&rx,&ry);
		1982	scale(res,qq,1);
		1983	myGdImageArc(image,qq[0],qq[1],rx,ry,res[3]/DEG,res[4]/DEG,pm->color[0]);
		1984	if(tikz_file)
		1985	fprintf(tikz_file, "(%i,%i) arc (%f:%f:%i and %i)",
		1986	(int)rint(qq[0]+rx*cos(res[3])),
		1987	flip((int)rint(qq[1]+ry*sin(res[3]))),
		1988	res[3]/DEG,res[4]/DEG,(int)rint(rx),-(int)rint(ry));
		1989	}
		1990	else {
		1991	scale(data+2*i,qq,2);
		1992	gdImageLine(image,qq[0],qq[1],qq[2],qq[3],pm->color[0]);
		1993	if(tikz_file) fprintf(tikz_file,"(%i,%i)--(%i,%i)",
		1994	qq[0],flip(qq[1]),qq[2],flip(qq[3]));
		1995	}
		1996	}
		1997	if(tikz_file) fprintf(tikz_file,";\n");
		1998	if(pm->fill){
		1999	data[0]=res[5];
		2000	data[1]=res[6];
		2001	hypgeodaux(data,res);
		2002	scale(res+5,qq,1);
		2003	//patchgdImageFill(image,qq[0],qq[1],pm->color[0]);
		2004	patchgdImageFillToBorder(image,qq[0],qq[1],pm->color[0],pm->color[0]);
		2005	if(tikz_file) tikz_fill(qq[0],qq[1],1,1,0,pm->color[0],grid);
		2006	}
		2007	}
18352	bpr	2008	/* complete hyperbolic geodesic through the two first points, then the following two points, etc */
		2009
		2010	void obj_hyplines(objparm *pm)
		2011	{
		2012	double rx,ry,res[7],*pd = pm->pd;
		2013	int i;
		2014	if (tikz_file) fprintf(tikz_file, "\\draw[%s]",tikz_options(pm->color[0],0));
		2015	for (i=0; i < pm->pcnt; i+=4,pd+=4)
		2016	if (hypgeodaux(pd,res)) {
		2017	double alpha=atan(1/res[2]), beta = atan2(res[1],res[0]);
		2018	scale(res,pm->p,1);
		2019	scale2(res[2],res[2],&rx,&ry);
		2020	myGdImageArc(image,pm->p[0],pm->p[1],rx,ry,180+(beta-alpha)/DEG,180+(beta+alpha)/DEG,pm->color[0]);
		2021	if (tikz_file) fprintf(tikz_file, "(%i,%i) arc (%f:%f:%i and %i);\n",
		2022	(int)rint(pm->p[0]-rxcos(beta-alpha)), flip((int)rint(pm->p[1]-rysin(beta-alpha))),
18356	bpr	2023	180+(beta-alpha)/DEG,180+(beta+alpha)/DEG, (int)rint(rx),-(int)rint(ry));
18352	bpr	2024	}
		2025	else {
		2026	double gamma;
		2027	if (pd[1]pd[1]+pd[0]pd[0] > pd[2]pd[2]+pd[3]pd[3])
		2028	gamma = atan2(pd[1],pd[0]);
		2029	else
		2030	gamma = atan2(pd[3],pd[2]);
		2031	res[0]=cos(gamma);
		2032	res[1]=sin(gamma);
		2033	res[2]=-cos(gamma);
		2034	res[3]=-sin(gamma);
		2035	scale(res,pm->p,2);
		2036	gdImageLine(image,pm->p[0],pm->p[1],pm->p[2],pm->p[3],pm->color[0]);
		2037	if(tikz_file) fprintf(tikz_file, "(%i,%i)--(%i,%i)",
		2038	pm->p[0],flip(pm->p[1]),pm->p[2],flip(pm->p[3]));
		2039	}
		2040	if (tikz_file) fprintf(tikz_file, ";\n");
		2041	}

Subversion Repositories wimsdev

(root)/trunk/wims/src/Flydraw/objects.c – Rev 18447