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#ifndef lint |
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static const char RCSid[] = "$Id: getbbox.c,v 2.5 2003/02/22 02:07:26 greg Exp $"; |
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#endif |
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/* |
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* getbbox.c - compute bounding box for scene files |
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* |
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* Adapted from oconv.c 29 May 1991 |
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*/ |
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|
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#include "standard.h" |
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#include "octree.h" |
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#include "object.h" |
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#include "oconv.h" |
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|
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char *progname; /* argv[0] */ |
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|
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int nowarn = 0; /* supress warnings? */ |
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|
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void (*addobjnotify[])() = {NULL}; /* new object notifier functions */ |
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|
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FVECT bbmin, bbmax; /* bounding box */ |
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|
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static void addobject(OBJREC *o); |
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|
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|
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|
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static void |
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addobject( /* add object to bounding box */ |
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OBJREC *o |
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) |
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{ |
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add2bbox(o, bbmin, bbmax); |
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} |
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|
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|
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int |
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main( /* read object files and compute bounds */ |
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int argc, |
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char **argv |
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) |
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{ |
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extern char *getenv(); |
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int nohead = 0; |
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int i; |
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|
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progname = argv[0]; |
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|
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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 'w': |
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nowarn = 1; |
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continue; |
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case 'h': |
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nohead = 1; |
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continue; |
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} |
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break; |
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} |
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/* find bounding box */ |
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bbmin[0] = bbmin[1] = bbmin[2] = FHUGE; |
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bbmax[0] = bbmax[1] = bbmax[2] = -FHUGE; |
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/* read input */ |
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if (i >= argc) |
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readobj2(NULL, addobject); |
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else |
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for ( ; i < argc; i++) |
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if (!strcmp(argv[i], "-")) /* from stdin */ |
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readobj2(NULL, addobject); |
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else /* from file */ |
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readobj2(argv[i], addobject); |
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/* print bounding box */ |
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if (!nohead) |
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printf( |
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" xmin xmax ymin ymax zmin zmax\n"); |
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|
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printf("%9g %9g %9g %9g %9g %9g\n", bbmin[0], bbmax[0], |
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bbmin[1], bbmax[1], bbmin[2], bbmax[2]); |
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quit(0); |
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return 0; /* pro forma return */ |
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} |
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|
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|
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void |
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quit( /* exit program */ |
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int code |
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) |
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{ |
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exit(code); |
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} |
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|
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|
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void |
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cputs(void) /* interactive error */ |
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{ |
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/* referenced, but not used */ |
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} |
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|
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|
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void |
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wputs( /* warning message */ |
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char *s |
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) |
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{ |
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if (!nowarn) |
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eputs(s); |
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} |
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|
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|
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void |
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eputs( /* put string to stderr */ |
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register char *s |
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) |
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{ |
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static int inln = 0; |
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|
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if (!inln++) { |
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fputs(progname, stderr); |
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fputs(": ", stderr); |
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} |
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fputs(s, stderr); |
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if (*s && s[strlen(s)-1] == '\n') |
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inln = 0; |
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} |
