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#include "cp_types.h"
#include "cp_proto.h"
/* dodec_coloring.c
Bill Floyd will generate a file of data for the dodecahedral
subdivision tiling, level 3 (??), which gives for the barycenter
vertex of each tile an integer whose digits encode the parentage
of the face -- digits tell successively whether the parent tile
is pentagon, rectangle, or triangle.
Compile with:
cc -o tile_coloring tile_coloring.c -L. -L/usr/X11R6/lib -lCP_libs -lX11 -lm
Run with:
tile_coloring -color rgb -quanta 30 <filename.p>
Idea is to color code using increments of red green blue, repectively,
putting out a postscript file showing the tiles in colors reflecting
their lineage.*/
/* main is derived from "shell_main.c" TEMPLATE.*/
char *emsgbuf,*msgbuf;
int repack_activity_msg(),refresh_canvas();
int main(int argc,char *argv[])
{
int wad=30; /* increment in color intensity for each hit */
int Red,Green,Blue;
double Rcolor,Gcolor,Bcolor;
int i,j,v,save_spot,depth,count=0;
complex b;
char line[BUFSIZE],filename[BUFSIZE],cbuf[BUFSIZE],code[64],
rgb[16],colr[]="123";
FILE *fp=NULL,*fpps=NULL;
struct p_data *p;
struct K_data *pK_ptr;
struct R_data *pR_ptr;
set_cp_globals();
/* ----------- user code starts here */
if (argc<1)
{
printf("tile_coloring: usage: -color <rgb> -quanta <n> filename.p\n");
exit(1);
}
sc_print_size=9;
/* ------ read the packing */
if (!strcpy(filename,argv[argc-1])
|| !(p=init_packing())
|| !(fp=fopen(filename,"r"))
|| !readpack(fp,p))
{
if (fp) fclose(fp);
printf(" Failed to get the packing.\n");
exit(1);
}
pK_ptr=p->packK_ptr;
pR_ptr=p->packR_ptr;
sprintf(cbuf,"-a");
set_screen(p,cbuf); /* fit screen to packing */
printf("Enter the PostScript output file name.\n");
fgets(line,sizeof(line),stdin);
sscanf(line,"%s",filename);
/* ------ get color options from arguments */
for (i=1;i<=(argc-1);i++)
{
if (!strncmp(argv[i],"-c",2) && ++i<=argc-1)
sscanf(argv[i],"%s",rgb);
else if (!strncmp(argv[i],"-q",2) && ++i<=argc-1)
sscanf(argv[i],"%d",&wad);
}
for (i=0;i<3 && rgb[i]!='\0';i++) /* set entries of colr */
{
if (rgb[i]=='r') sprintf(colr,"%d",i+1);
else if (rgb[i]=='g') sprintf(colr+1,"%d",i+1);
else if (rgb[i]=='b') sprintf(colr+2,"%d",i+1);
}
/* find the lineage data */
while (!fscanf(fp,"%s",line) || strcmp(line,"HISTORIES:"));
if (strcmp(line,"HISTORIES:"))
{
printf("Didn't find 'HISTORIES' keyword.\n");
exit(2);
}
sprintf(cbuf,"-o");
print_call(&fpps,p,filename,cbuf,
"Floyd-Stephenson","Aug 2001","lpr");
fprintf(fpps,"\n .05 ourlinewidth\n");
/* read first to see how many generations we face */
save_spot=ftell(fp);
fscanf(fp,"%d %s",&v,code);
depth=strlen(code);
fseek(fp,save_spot,SEEK_SET);
/* ------ read, decode lineage data, add to postscript file */
while (fscanf(fp,"%d %s",&v,code)==2 && v>0 && v<=p->nodecount)
{
Red=Green=Blue=0;
/* =========================== here's one place to set strategy */
for (i=0;i<depth;i++) /* can adjust: eg, more guanta for
deeper level? */
{
/* weight depending on generation? */
/* if (code[i]==colr[0]) Red += 1+i;
else if (code[i]==colr[1]) Green += 1+i;
else if (code[i]==colr[2]) Blue += 1+i;
*/
/* equal weight (could change weight depending on color) */
if (code[i]==colr[0]) Red++;
else if (code[i]==colr[1]) Green++;
else if (code[i]==colr[2]) Blue++;
}
/* =========================== here's another strategy spot:
low indices? 256-indices? base?..... */
/* Rcolor=((256-Red*wad)%256)/255.0;
Gcolor=((256-Green*wad)%256)/255.0;
Bcolor=((256-Blue*wad)%256)/255.0;
*/
Rcolor=((Red*wad)%256)/255.0;
Gcolor=((Green*wad)%256)/255.0;
Bcolor=((Blue*wad)%256)/255.0;
/*
Rcolor=((100+Red*wad)%256)/255.0;
Gcolor=((100+Green*wad)%256)/255.0;
Bcolor=((100+Blue*wad)%256)/255.0;
*/
/* put flower in postscript */
b=pR_ptr[pK_ptr[v].flower[0]].center;
fprintf(fpps,"n\n %f %f m\n",b.re,b.im);
for (j=1;j<=pK_ptr[v].num;j++)
{
b=pR_ptr[pK_ptr[v].flower[j]].center;
fprintf(fpps,"%f %f l\n",b.re,b.im);
}
/* need to close up? */
if (pK_ptr[v].flower[0]!=pK_ptr[v].flower[pK_ptr[v].num])
{
b=pR_ptr[v].center;
fprintf(fpps,"%f %f l\n",b.re,b.im);
b=pR_ptr[pK_ptr[v].flower[0]].center;
fprintf(fpps,"%f %f l\n",b.re,b.im);
}
fprintf(fpps,"cp\n");
/* ===== draw edge in color? (may want to drop this) */
/* fprintf(fpps,"%lf %lf %lf srgb ",Rcolor,Gcolor,Bcolor);
*/
/* fill in colored face */
fprintf(fpps,"gs %lf %lf %lf srgb fill gr\ns\n",Rcolor,Gcolor,Bcolor);
}
fclose(fp);
printf("Printed %d polygonal faces. \n",count);
sprintf(cbuf,"-xg");
print_call(&fpps,p,filename,cbuf,"","","lpr");
printf("Output should now be in %s.\nBye.\n",filename);
/* ----------- user code ends here */
exit(0);
} /* main */
/* ====== communication routines; user may want to modify ====== */
int emsg()
{
printf(emsgbuf);return 1;
} /* emsg */
int msg()
{
printf(msgbuf);return 1;
} /* msg */
int repack_activity_msg(char *datastr)
/* report progress of repacking */
{
strcpy(msgbuf,datastr);
msg();
return 1;
} /* repack_activity_msg */
int refresh_canvas(struct s_data *q)
/* some drawing routines want to refresh */
{return 1;} /* refresh_canvas */
/* ================================================================= */
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