| 1 |
greg |
2.1 |
#ifndef lint |
| 2 |
greg |
2.7 |
static const char RCSid[] = "$Id: vwright.c,v 2.6 2005/01/18 00:33:16 greg Exp $"; |
| 3 |
greg |
2.1 |
#endif |
| 4 |
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/* |
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* Move a viewpoint the given distance to the right |
| 6 |
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*/ |
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| 8 |
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| 9 |
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#include "standard.h" |
| 10 |
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| 11 |
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#include "view.h" |
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| 13 |
greg |
2.3 |
#include <ctype.h> |
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| 15 |
greg |
2.2 |
VIEW vw = STDVIEW; |
| 16 |
greg |
2.1 |
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| 17 |
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char *progname; |
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| 19 |
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| 20 |
schorsch |
2.5 |
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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greg |
2.1 |
{ |
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char linebuf[256]; |
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greg |
2.2 |
char *err; |
| 28 |
greg |
2.1 |
int gotview = 0; |
| 29 |
greg |
2.3 |
FVECT hvn, vvn; |
| 30 |
greg |
2.1 |
double dist; |
| 31 |
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register int i; |
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| 33 |
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progname = argv[0]; |
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greg |
2.3 |
if (argc != 2) |
| 35 |
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goto userr; |
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greg |
2.1 |
while (fgets(linebuf, sizeof(linebuf), stdin) != NULL) { |
| 37 |
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if (linebuf[0] == '\n') |
| 38 |
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break; |
| 39 |
greg |
2.2 |
if (isview(linebuf) && sscanview(&vw, linebuf) > 0) |
| 40 |
greg |
2.1 |
gotview++; |
| 41 |
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} |
| 42 |
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if (!gotview) { |
| 43 |
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fprintf(stderr, "%s: no view on standard input\n", progname); |
| 44 |
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exit(1); |
| 45 |
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} |
| 46 |
greg |
2.2 |
if ((err= setview(&vw)) != NULL) { |
| 47 |
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fprintf(stderr, "%s: %s\n", progname, err); |
| 48 |
greg |
2.1 |
exit(1); |
| 49 |
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} |
| 50 |
greg |
2.3 |
VCOPY(hvn, vw.hvec); |
| 51 |
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normalize(hvn); |
| 52 |
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VCOPY(vvn, vw.vvec); |
| 53 |
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normalize(vvn); |
| 54 |
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if (isalpha(argv[1][0])) { /* print out variables */ |
| 55 |
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switch (vw.type) { |
| 56 |
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case VT_PER: i=1; break; |
| 57 |
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case VT_PAR: i=2; break; |
| 58 |
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case VT_ANG: i=3; break; |
| 59 |
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case VT_HEM: i=4; break; |
| 60 |
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case VT_CYL: i=5; break; |
| 61 |
greg |
2.7 |
case VT_PLS: i=6; break; |
| 62 |
greg |
2.3 |
default: i=0; break; |
| 63 |
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} |
| 64 |
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printf("%st:%d;", argv[1], i); |
| 65 |
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printf("%spx:%g;%spy:%g;%spz:%g;", argv[1], vw.vp[0], |
| 66 |
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argv[1], vw.vp[1], argv[1], vw.vp[2]); |
| 67 |
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printf("%sdx:%g;%sdy:%g;%sdz:%g;", argv[1], vw.vdir[0], |
| 68 |
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argv[1], vw.vdir[1], argv[1], vw.vdir[2]); |
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greg |
2.6 |
printf("%sd:%g;", argv[1], vw.vdist); |
| 70 |
greg |
2.3 |
printf("%sux:%g;%suy:%g;%suz:%g;", argv[1], vw.vup[0], |
| 71 |
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argv[1], vw.vup[1], argv[1], vw.vup[2]); |
| 72 |
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printf("%sh:%g;%sv:%g;", argv[1], vw.horiz, |
| 73 |
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argv[1], vw.vert); |
| 74 |
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printf("%ss:%g;%sl:%g;%so:%g;%sa:%g;", |
| 75 |
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argv[1], vw.hoff, argv[1], vw.voff, |
| 76 |
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argv[1], vw.vfore, argv[1], vw.vaft); |
| 77 |
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printf("%shx:%g;%shy:%g;%shz:%g;%shn:%g;", |
| 78 |
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argv[1], hvn[0], argv[1], hvn[1], |
| 79 |
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argv[1], hvn[2], argv[1], sqrt(vw.hn2)); |
| 80 |
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printf("%svx:%g;%svy:%g;%svz:%g;%svn:%g;\n", |
| 81 |
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argv[1], vvn[0], argv[1], vvn[1], |
| 82 |
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argv[1], vvn[2], argv[1], sqrt(vw.vn2)); |
| 83 |
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exit(0); |
| 84 |
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} |
| 85 |
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if (!isflt(argv[1])) |
| 86 |
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goto userr; |
| 87 |
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dist = atof(argv[1]); |
| 88 |
greg |
2.1 |
for (i = 0; i < 3; i++) |
| 89 |
greg |
2.3 |
vw.vp[i] += dist*hvn[i]; |
| 90 |
greg |
2.2 |
fprintview(&vw, stdout); |
| 91 |
greg |
2.1 |
putchar('\n'); |
| 92 |
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exit(0); |
| 93 |
greg |
2.3 |
userr: |
| 94 |
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fprintf(stderr, "Usage: %s {offset|name}\n", progname); |
| 95 |
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exit(1); |
| 96 |
greg |
2.1 |
} |
