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/* Copyright (c) 1991 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Display an image and watch the rays get traced. |
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* |
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* 9/21/90 Greg Ward |
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*/ |
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#include <X11/Xlib.h> |
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#include "standard.h" |
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#include "paths.h" |
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#include "view.h" |
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#include "resolu.h" |
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#include <X11/Xlib.h> |
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#define MAXDEPTH 32 /* ridiculous ray tree depth */ |
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#ifdef SMLFLT |
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#define sscanvec(s,v) (sscanf(s,"%f %f %f",v,v+1,v+2)==3) |
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#else |
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#define sscanvec(s,v) (sscanf(s,"%lf %lf %lf",v,v+1,v+2)==3) |
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#endif |
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#define sscanvec(s,v) (sscanf(s,FVFORMAT,v,v+1,v+2)==3) |
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char rtcom[] = "rtrace -h- -otp -fa -x 1"; |
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char xicom[] = "ximage"; |
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char rtcom[64] = "rtrace -h- -otp -fa -x 1"; |
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char xicom[] = "ximage -c 256"; |
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VIEW ourview = STDVIEW; /* view for picture */ |
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RESOLU ourres; /* picture resolution */ |
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int slow = 0; /* slow trace? */ |
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void mainloop(void); |
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static void freetree(struct node *tp); |
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static void tracerays(struct node *tp); |
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static int strtoipt(int ipt[2], char *str); |
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static void setvec(int ipt[2]); |
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static void vector(int ip1[2], int ip2[2]); |
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main(argc, argv) /* takes both the octree and the image */ |
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int argc; |
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char *argv[]; |
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int |
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main( /* takes both the octree and the image */ |
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int argc, |
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char *argv[] |
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) |
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{ |
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int i; |
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char combuf[256]; |
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char combuf[PATH_MAX]; |
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progname = argv[0]; |
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for (i = 1; i < argc-2; i++) |
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if (!strcmp(argv[i], "-s")) |
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slow++; |
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else if (!strcmp(argv[i], "-T")) |
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strcat(rtcom, " -oTp"); |
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else |
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break; |
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if (i > argc-2) { |
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fprintf(stderr, "Usage: %s [-s] [rtrace args] octree picture\n", |
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fprintf(stderr, "Usage: %s [-s][-T] [rtrace args] octree picture\n", |
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progname); |
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exit(1); |
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} |
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exit(1); |
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} |
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/* build input command */ |
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sprintf(combuf, "%s %s | %s", xicom, picture, rtcom); |
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sprintf(combuf, "%s \"%s\" | %s", xicom, picture, rtcom); |
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for ( ; i < argc-1; i++) { |
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strcat(combuf, " "); |
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strcat(combuf, argv[i]); |
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exit(1); |
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/* loop on input */ |
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mainloop(); |
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/* close pipe and exit */ |
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pclose(pin); |
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exit(0); |
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} |
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mainloop() /* get and process input */ |
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void |
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mainloop(void) /* get and process input */ |
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{ |
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static struct node *sis[MAXDEPTH]; |
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register struct node *newp; |
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} |
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freetree(tp) /* free a trace tree */ |
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struct node *tp; |
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static void |
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freetree( /* free a trace tree */ |
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struct node *tp |
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) |
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{ |
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register struct node *kid; |
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register struct node *kid, *k2; |
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for (kid = tp->daughter; kid != NULL; kid = kid->sister) |
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for (kid = tp->daughter; kid != NULL; kid = k2) { |
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k2 = kid->sister; |
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freetree(kid); |
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free((char *)tp); |
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} |
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free((void *)tp); |
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} |
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tracerays(tp) /* trace a ray tree */ |
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struct node *tp; |
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static void |
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tracerays( /* trace a ray tree */ |
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struct node *tp |
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) |
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{ |
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register struct node *kid; |
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} |
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strtoipt(ipt, str) /* convert string x y z to image point */ |
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int ipt[2]; |
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char *str; |
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static int |
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strtoipt( /* convert string x y z to image point */ |
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int ipt[2], |
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char *str |
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) |
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{ |
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FVECT im_pt, pt; |
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int xoff, yoff; |
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setvec(ipt) /* set up vector drawing for pick */ |
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int ipt[2]; |
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static void |
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setvec( /* set up vector drawing for pick */ |
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int ipt[2] |
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) |
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{ |
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extern Window xfindwind(); |
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XWindowAttributes wa; |
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XColor xc; |
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XGCValues gcv; |
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Window rw, cw; |
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unsigned int pm; |
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/* compute pointer location */ |
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if (gwind == 0 && |
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(gwind = xfindwind(theDisplay, rwind, picture, 2)) == 0) { |
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fprintf(stderr, "%s: cannot find display window!\n", progname); |
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exit(1); |
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if (gwind == 0) { |
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register char *wn; |
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for (wn = picture; *wn; wn++); |
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while (wn > picture && wn[-1] != '/') wn--; |
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if ((gwind = xfindwind(theDisplay, rwind, wn, 4)) == 0) { |
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fprintf(stderr, "%s: cannot find display window!\n", |
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progname); |
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exit(1); |
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} |
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} |
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XQueryPointer(theDisplay, gwind, &rw, &cw, &rx, &ry, &wx, &wy, &pm); |
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xoff = wx - ipt[0]; |
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} |
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vector(ip1, ip2) /* draw a vector */ |
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int ip1[2], ip2[2]; |
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static void |
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vector( /* draw a vector */ |
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int ip1[2], |
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int ip2[2] |
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) |
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{ |
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if (ip2[0] == -1 && ip2[1] == -1) |
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return; /* null vector */ |
