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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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/* |
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* Replace markers in Radiance scene description with objects or instances. |
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* |
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* Created: 17 Feb 1991 Greg Ward |
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*/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <ctype.h> |
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#include <math.h> |
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#include <stdio.h> |
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|
15 |
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#include "platform.h" |
16 |
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#include "rtio.h" |
17 |
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#include "rtprocess.h" |
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#include "fvect.h" |
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|
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#ifdef M_PI |
21 |
< |
#define PI M_PI |
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#define PI ((double)M_PI) |
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#else |
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#define PI 3.14159265358979323846 |
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#endif |
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#define FEQ(a,b) ((a)-(b) <= 1e-7 && (b)-(a) <= 1e-7) |
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|
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#define MAXVERT 6 /* maximum number of vertices for markers */ |
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#define MAXMARK 32 /* maximum number of markers */ |
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|
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#define USE_XFORM 1 /* use !xform inline command */ |
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#define USE_INSTANCE 2 /* use instance primitive */ |
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#define USE_MESH 3 /* use mesh primitive */ |
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|
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typedef struct { |
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short beg, end; /* beginning and ending vertex */ |
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float len2; /* length squared */ |
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} EDGE; /* a marker edge */ |
39 |
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|
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int expand = 0; /* expand commands? */ |
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struct mrkr { |
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char *modout; /* output modifier */ |
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double mscale; /* scale by this to get unit */ |
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char *modin; /* input modifier indicating marker */ |
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char *objname; /* output object file or octree */ |
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int usetype; /* one of USE_* above */ |
46 |
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} marker[MAXMARK]; /* array of markers */ |
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int nmarkers = 0; /* number of markers */ |
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|
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char *modout = NULL; /* output modifier (for instances) */ |
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int expand; /* expand commands? */ |
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|
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double markscale = 0.0; /* scale markers by this to get unit */ |
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|
40 |
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char *modin = NULL; /* input modifier indicating marker */ |
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|
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char *objname = NULL; /* output object file (octree if instance) */ |
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int doxform; /* true if xform, false if instance */ |
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|
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char *progname; |
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|
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static void convert(char *name, FILE *fin); |
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static void cvcomm(char *fname, FILE *fin); |
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static void cvobject(char *fname, FILE *fin); |
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static void replace(char *fname, struct mrkr *m, char *mark, FILE *fin); |
57 |
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static int edgecmp(const void *e1, const void *e2); |
58 |
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static int buildxf(char *xf, double markscale, FILE *fin); |
59 |
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static int addrot(char *xf, FVECT xp, FVECT yp, FVECT zp); |
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|
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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|
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int |
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main( |
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int argc, |
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char *argv[] |
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) |
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{ |
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FILE *fp; |
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int i, j; |
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|
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progname = argv[0]; |
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for (i = 1; i < argc && argv[i][0] == '-'; i++) |
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switch (argv[i][1]) { |
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case 'i': |
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doxform = 0; |
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objname = argv[++i]; |
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break; |
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case 'x': |
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doxform = 1; |
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objname = argv[++i]; |
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break; |
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case 'e': |
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expand = !expand; |
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break; |
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case 'm': |
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modout = argv[++i]; |
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break; |
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case 's': |
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markscale = atof(argv[++i]); |
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break; |
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default: |
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i = 1; |
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while (i < argc && argv[i][0] == '-') { |
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do { |
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switch (argv[i][1]) { |
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case 'i': |
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marker[nmarkers].usetype = USE_INSTANCE; |
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marker[nmarkers].objname = argv[++i]; |
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break; |
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case 'I': |
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marker[nmarkers].usetype = USE_MESH; |
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marker[nmarkers].objname = argv[++i]; |
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break; |
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case 'x': |
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marker[nmarkers].usetype = USE_XFORM; |
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marker[nmarkers].objname = argv[++i]; |
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break; |
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case 'e': |
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expand = 1; |
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break; |
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case 'm': |
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marker[nmarkers].modout = argv[++i]; |
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break; |
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case 's': |
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marker[nmarkers].mscale = atof(argv[++i]); |
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break; |
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default: |
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goto userr; |
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} |
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if (++i >= argc) |
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goto userr; |
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} while (argv[i][0] == '-'); |
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if (marker[nmarkers].objname == NULL) |
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goto userr; |
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} |
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if (i < argc) |
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modin = argv[i++]; |
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if (objname == NULL || modin == NULL) |
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marker[nmarkers++].modin = argv[i++]; |
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if (nmarkers >= MAXMARK) |
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break; |
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marker[nmarkers].mscale = marker[nmarkers-1].mscale; |
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} |
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if (nmarkers == 0) |
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goto userr; |
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/* simple header */ |
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putchar('#'); |
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convert(argv[i], fp); |
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fclose(fp); |
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} |
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exit(0); |
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return 0; |
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userr: |
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fprintf(stderr, |
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"Usage: %s [-e][-s size][-m modout] {-x objfile|-i octree} modname [file ..]\n", |
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"Usage: %s [-e][-s size][-m modout] {-x objfile|-i octree|-I mesh} modname .. [file ..]\n", |
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progname); |
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exit(1); |
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> |
return 1; |
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} |
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|
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|
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convert(name, fin) /* replace marks in a stream */ |
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char *name; |
141 |
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register FILE *fin; |
139 |
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void |
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convert( /* replace marks in a stream */ |
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char *name, |
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register FILE *fin |
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) |
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{ |
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register int c; |
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|
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} |
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|
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|
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cvcomm(fname, fin) /* convert a command */ |
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< |
char *fname; |
170 |
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FILE *fin; |
168 |
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void |
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cvcomm( /* convert a command */ |
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char *fname, |
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FILE *fin |
172 |
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) |
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{ |
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FILE *pin, *popen(); |
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FILE *pin; |
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char buf[512], *fgetline(); |
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fgetline(buf, sizeof(buf), fin); |
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} |
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|
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|
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cvobject(fname, fin) /* convert an object */ |
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char *fname; |
194 |
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FILE *fin; |
192 |
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void |
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cvobject( /* convert an object */ |
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char *fname, |
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FILE *fin |
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) |
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{ |
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+ |
extern char *fgetword(); |
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char buf[128], typ[16], nam[128]; |
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int i, j, n; |
200 |
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int i, n; |
201 |
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register int j; |
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|
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if (fscanf(fin, "%s %s %s", buf, typ, nam) != 3) |
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goto readerr; |
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if (!strcmp(buf, modin) && !strcmp(typ, "polygon")) { |
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replace(fname, nam, fin); |
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return; |
208 |
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} |
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> |
if (!strcmp(typ, "polygon")) |
206 |
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for (j = 0; j < nmarkers; j++) |
207 |
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if (!strcmp(buf, marker[j].modin)) { |
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replace(fname, &marker[j], nam, fin); |
209 |
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return; |
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} |
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printf("\n%s %s %s\n", buf, typ, nam); |
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if (!strcmp(typ, "alias")) { /* alias special case */ |
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if (fscanf(fin, "%s", buf) != 1) |
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goto readerr; |
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printf("%d", n); |
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for (j = 0; j < n; j++) { |
223 |
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if (fscanf(fin, "%s", buf) != 1) |
223 |
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if (fgetword(buf, sizeof(buf), fin) == NULL) |
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goto readerr; |
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if (j%3 == 0) |
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putchar('\n'); |
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< |
printf("\t%s", buf); |
227 |
> |
putchar('\t'); |
228 |
> |
fputword(buf, stdout); |
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} |
230 |
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putchar('\n'); |
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} |
236 |
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} |
237 |
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|
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|
239 |
< |
replace(fname, mark, fin) /* replace marker */ |
240 |
< |
char *fname, *mark; |
241 |
< |
FILE *fin; |
239 |
> |
void |
240 |
> |
replace( /* replace marker */ |
241 |
> |
char *fname, |
242 |
> |
register struct mrkr *m, |
243 |
> |
char *mark, |
244 |
> |
FILE *fin |
245 |
> |
) |
246 |
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{ |
247 |
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int n; |
248 |
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char buf[256]; |
249 |
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|
250 |
< |
if (doxform) { |
251 |
< |
sprintf(buf, "xform -e -n %s", mark); |
252 |
< |
if (modout != NULL) |
253 |
< |
sprintf(buf+strlen(buf), " -m %s", modout); |
254 |
< |
if (buildxf(buf+strlen(buf), fin) < 0) |
250 |
> |
buf[0] = '\0'; /* bug fix thanks to schorsch */ |
251 |
> |
if (m->usetype == USE_XFORM) { |
252 |
> |
sprintf(buf, "xform -n %s", mark); |
253 |
> |
if (m->modout != NULL) |
254 |
> |
sprintf(buf+strlen(buf), " -m %s", m->modout); |
255 |
> |
if (buildxf(buf+strlen(buf), m->mscale, fin) < 0) |
256 |
|
goto badxf; |
257 |
< |
sprintf(buf+strlen(buf), " %s", objname); |
257 |
> |
sprintf(buf+strlen(buf), " %s", m->objname); |
258 |
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if (expand) { |
259 |
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fflush(stdout); |
260 |
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system(buf); |
261 |
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} else |
262 |
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printf("\n!%s\n", buf); |
263 |
|
} else { |
264 |
< |
if ((n = buildxf(buf, fin)) < 0) |
264 |
> |
if ((n = buildxf(buf, m->mscale, fin)) < 0) |
265 |
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goto badxf; |
266 |
< |
printf("\n%s instance %s\n", modout==NULL?"void":modout, mark); |
267 |
< |
printf("%d %s%s\n0\n0\n", n+1, objname, buf); |
266 |
> |
printf("\n%s %s %s\n", |
267 |
> |
m->modout==NULL?"void":m->modout, |
268 |
> |
m->usetype==USE_INSTANCE?"instance":"mesh", |
269 |
> |
mark); |
270 |
> |
printf("%d %s%s\n0\n0\n", n+1, m->objname, buf); |
271 |
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} |
272 |
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return; |
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badxf: |
277 |
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} |
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|
279 |
|
|
280 |
< |
edgecmp(e1, e2) /* compare two edges, descending order */ |
281 |
< |
EDGE *e1, *e2; |
280 |
> |
int |
281 |
> |
edgecmp( /* compare two edges, descending order */ |
282 |
> |
const void *e1, |
283 |
> |
const void *e2 |
284 |
> |
) |
285 |
|
{ |
286 |
< |
if (e1->len2 > e2->len2) |
286 |
> |
if (((EDGE*)e1)->len2 > ((EDGE*)e2)->len2) |
287 |
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return(-1); |
288 |
< |
if (e1->len2 < e2->len2) |
288 |
> |
if (((EDGE*)e1)->len2 < ((EDGE*)e2)->len2) |
289 |
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return(1); |
290 |
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return(0); |
291 |
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} |
292 |
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|
293 |
|
|
294 |
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int |
295 |
< |
buildxf(xf, fin) /* build transform for marker */ |
296 |
< |
char *xf; |
297 |
< |
FILE *fin; |
295 |
> |
buildxf( /* build transform for marker */ |
296 |
> |
register char *xf, |
297 |
> |
double markscale, |
298 |
> |
FILE *fin |
299 |
> |
) |
300 |
|
{ |
301 |
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static FVECT vlist[MAXVERT]; |
302 |
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static EDGE elist[MAXVERT]; |
361 |
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if (markscale > 0.0) { /* add scale factor */ |
362 |
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sprintf(xf, " -s %f", xlen*markscale); |
363 |
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n += 2; |
364 |
< |
xf += strlen(xf); |
364 |
> |
while (*xf) ++xf; |
365 |
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} |
366 |
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/* add rotation */ |
367 |
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n += addrot(xf, xvec, yvec, zvec); |
368 |
< |
xf += strlen(xf); |
368 |
> |
while (*xf) ++xf; |
369 |
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/* add translation */ |
370 |
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n += 4; |
371 |
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sprintf(xf, " -t %f %f %f", vlist[elist[1].beg][0], |
374 |
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} |
375 |
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|
376 |
|
|
377 |
< |
addrot(xf, xp, yp, zp) /* compute rotation (x,y,z) => (xp,yp,zp) */ |
378 |
< |
char *xf; |
379 |
< |
FVECT xp, yp, zp; |
377 |
> |
int |
378 |
> |
addrot( /* compute rotation (x,y,z) => (xp,yp,zp) */ |
379 |
> |
register char *xf, |
380 |
> |
FVECT xp, |
381 |
> |
FVECT yp, |
382 |
> |
FVECT zp |
383 |
> |
) |
384 |
|
{ |
385 |
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int n; |
386 |
|
double theta; |
389 |
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theta = atan2(yp[2], zp[2]); |
390 |
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if (!FEQ(theta,0.0)) { |
391 |
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sprintf(xf, " -rx %f", theta*(180./PI)); |
392 |
< |
xf += strlen(xf); |
392 |
> |
while (*xf) ++xf; |
393 |
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n += 2; |
394 |
|
} |
395 |
|
theta = asin(-xp[2]); |
396 |
|
if (!FEQ(theta,0.0)) { |
397 |
|
sprintf(xf, " -ry %f", theta*(180./PI)); |
398 |
< |
xf += strlen(xf); |
398 |
> |
while (*xf) ++xf; |
399 |
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n += 2; |
400 |
|
} |
401 |
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theta = atan2(xp[1], xp[0]); |
402 |
|
if (!FEQ(theta,0.0)) { |
403 |
|
sprintf(xf, " -rz %f", theta*(180./PI)); |
404 |
< |
/* xf += strlen(xf); */ |
404 |
> |
/* while (*xf) ++xf; */ |
405 |
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n += 2; |
406 |
|
} |
407 |
|
return(n); |