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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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* Generate renderable grids from a holodeck file |
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*/ |
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#include <stdio.h> |
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#include "platform.h" |
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#include "resolu.h" |
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#include "holo.h" |
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char *progname; /* global argv[0] */ |
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char *mat, *name; /* material and object id */ |
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double rad; /* grid line radius */ |
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static void gridsect(char *fname, int sect); |
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static void putgrid(HOLO *hp); |
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static void putline(FVECT wp[2]); |
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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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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int sect; |
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progname = argv[0]; |
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if (argc < 5 | argc > 6) |
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if ((argc < 5) | (argc > 6)) |
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goto userr; |
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mat = argv[1]; |
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name = argv[2]; |
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} |
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gridsect(fname, sect) /* get specified section(s) and print grids */ |
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char *fname; |
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int sect; |
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void |
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gridsect( /* get specified section(s) and print grids */ |
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char *fname, |
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int sect |
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) |
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{ |
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extern long ftell(); |
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FILE *fp; |
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HOLO hdsect; |
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int fd; |
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int4 nextloc; |
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int32 nextloc; |
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int n; |
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/* open holodeck file */ |
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if ((fp = fopen(fname, "r")) == NULL) { |
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if ((fp = fopen(fname, "rb")) == NULL) { |
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sprintf(errmsg, "cannot open \"%s\"", fname); |
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error(SYSTEM, errmsg); |
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} |
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nextloc = ftell(fp); /* get stdio position */ |
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fclose(fp); /* done with stdio */ |
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for (n = 0; nextloc > 0L; n++) { /* get the section(s) */ |
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lseek(fd, (long)nextloc, 0); |
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lseek(fd, (off_t)nextloc, SEEK_SET); |
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read(fd, (char *)&nextloc, sizeof(nextloc)); |
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if (sect < 0 | n == sect) { |
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if ((sect < 0) | (n == sect)) { |
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read(fd, (char *)&hdsect, sizeof(HDGRID)); |
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hdcompgrid(&hdsect); |
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putgrid(&hdsect); /* print grid */ |
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} |
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putgrid(hp) /* run through holodeck section grid lines */ |
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register HOLO *hp; |
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void |
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putgrid( /* run through holodeck section grid lines */ |
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HOLO *hp |
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) |
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{ |
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register int w, i; |
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int w, i; |
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int g0, g1; |
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FVECT wp[2], mov; |
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double d; |
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} |
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putline(wp) /* put out a line */ |
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register FVECT wp[2]; |
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void |
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putline( /* put out a line */ |
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FVECT wp[2] |
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) |
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{ |
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static int cnt = 0; |
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