1 |
greg |
2.2 |
/* Copyright (c) 1995 Regents of the University of California */ |
2 |
greg |
2.1 |
|
3 |
|
|
#ifndef lint |
4 |
|
|
static char SCCSid[] = "$SunId$ LBL"; |
5 |
|
|
#endif |
6 |
|
|
|
7 |
|
|
/* |
8 |
|
|
* Move a viewpoint the given distance to the right |
9 |
|
|
*/ |
10 |
|
|
|
11 |
|
|
|
12 |
|
|
#include "standard.h" |
13 |
|
|
|
14 |
|
|
#include "view.h" |
15 |
|
|
|
16 |
greg |
2.3 |
#include <ctype.h> |
17 |
|
|
|
18 |
greg |
2.2 |
VIEW vw = STDVIEW; |
19 |
greg |
2.1 |
|
20 |
|
|
char *progname; |
21 |
|
|
|
22 |
|
|
|
23 |
|
|
main(argc, argv) |
24 |
|
|
int argc; |
25 |
|
|
char *argv[]; |
26 |
|
|
{ |
27 |
|
|
char linebuf[256]; |
28 |
greg |
2.2 |
char *err; |
29 |
greg |
2.1 |
int gotview = 0; |
30 |
greg |
2.3 |
FVECT hvn, vvn; |
31 |
greg |
2.1 |
double dist; |
32 |
|
|
register int i; |
33 |
|
|
|
34 |
|
|
progname = argv[0]; |
35 |
greg |
2.3 |
if (argc != 2) |
36 |
|
|
goto userr; |
37 |
greg |
2.1 |
while (fgets(linebuf, sizeof(linebuf), stdin) != NULL) { |
38 |
|
|
if (linebuf[0] == '\n') |
39 |
|
|
break; |
40 |
greg |
2.2 |
if (isview(linebuf) && sscanview(&vw, linebuf) > 0) |
41 |
greg |
2.1 |
gotview++; |
42 |
|
|
} |
43 |
|
|
if (!gotview) { |
44 |
|
|
fprintf(stderr, "%s: no view on standard input\n", progname); |
45 |
|
|
exit(1); |
46 |
|
|
} |
47 |
greg |
2.2 |
if ((err= setview(&vw)) != NULL) { |
48 |
|
|
fprintf(stderr, "%s: %s\n", progname, err); |
49 |
greg |
2.1 |
exit(1); |
50 |
|
|
} |
51 |
greg |
2.3 |
VCOPY(hvn, vw.hvec); |
52 |
|
|
normalize(hvn); |
53 |
|
|
VCOPY(vvn, vw.vvec); |
54 |
|
|
normalize(vvn); |
55 |
|
|
if (isalpha(argv[1][0])) { /* print out variables */ |
56 |
|
|
switch (vw.type) { |
57 |
|
|
case VT_PER: i=1; break; |
58 |
|
|
case VT_PAR: i=2; break; |
59 |
|
|
case VT_ANG: i=3; break; |
60 |
|
|
case VT_HEM: i=4; break; |
61 |
|
|
case VT_CYL: i=5; break; |
62 |
|
|
default: i=0; break; |
63 |
|
|
} |
64 |
|
|
printf("%st:%d;", argv[1], i); |
65 |
|
|
printf("%spx:%g;%spy:%g;%spz:%g;", argv[1], vw.vp[0], |
66 |
|
|
argv[1], vw.vp[1], argv[1], vw.vp[2]); |
67 |
|
|
printf("%sdx:%g;%sdy:%g;%sdz:%g;", argv[1], vw.vdir[0], |
68 |
|
|
argv[1], vw.vdir[1], argv[1], vw.vdir[2]); |
69 |
|
|
printf("%sux:%g;%suy:%g;%suz:%g;", argv[1], vw.vup[0], |
70 |
|
|
argv[1], vw.vup[1], argv[1], vw.vup[2]); |
71 |
|
|
printf("%sh:%g;%sv:%g;", argv[1], vw.horiz, |
72 |
|
|
argv[1], vw.vert); |
73 |
|
|
printf("%ss:%g;%sl:%g;%so:%g;%sa:%g;", |
74 |
|
|
argv[1], vw.hoff, argv[1], vw.voff, |
75 |
|
|
argv[1], vw.vfore, argv[1], vw.vaft); |
76 |
|
|
printf("%shx:%g;%shy:%g;%shz:%g;%shn:%g;", |
77 |
|
|
argv[1], hvn[0], argv[1], hvn[1], |
78 |
|
|
argv[1], hvn[2], argv[1], sqrt(vw.hn2)); |
79 |
|
|
printf("%svx:%g;%svy:%g;%svz:%g;%svn:%g;\n", |
80 |
|
|
argv[1], vvn[0], argv[1], vvn[1], |
81 |
|
|
argv[1], vvn[2], argv[1], sqrt(vw.vn2)); |
82 |
|
|
exit(0); |
83 |
|
|
} |
84 |
|
|
if (!isflt(argv[1])) |
85 |
|
|
goto userr; |
86 |
|
|
dist = atof(argv[1]); |
87 |
greg |
2.1 |
for (i = 0; i < 3; i++) |
88 |
greg |
2.3 |
vw.vp[i] += dist*hvn[i]; |
89 |
greg |
2.2 |
fprintview(&vw, stdout); |
90 |
greg |
2.1 |
putchar('\n'); |
91 |
|
|
exit(0); |
92 |
greg |
2.3 |
userr: |
93 |
|
|
fprintf(stderr, "Usage: %s {offset|name}\n", progname); |
94 |
|
|
exit(1); |
95 |
greg |
2.1 |
} |