1 |
greg |
2.1 |
#ifndef lint |
2 |
greg |
2.8 |
static const char RCSid[] = "$Id: vwright.c,v 2.7 2008/03/11 02:21:47 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" |
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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 |
|
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]; |
27 |
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; |
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register int i; |
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progname = argv[0]; |
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greg |
2.8 |
++argv; --argc; |
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while (argc && argv[0][0] == '-' && argv[0][1] == 'v') { |
36 |
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int rv; |
37 |
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if (argc > 2 && argv[0][2] == 'f') { |
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rv = viewfile(argv[1], &vw, NULL); |
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if (rv <= 0) { |
40 |
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fprintf(stderr, "%s: %s file '%s'\n", |
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progname, |
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rv < 0 ? "cannot open view" : |
43 |
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"no view in", argv[1]); |
44 |
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exit(1); |
45 |
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} |
46 |
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++gotview; |
47 |
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++argv; --argc; |
48 |
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} else { |
49 |
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rv = getviewopt(&vw, argc, argv); |
50 |
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if (rv < 0) { |
51 |
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fprintf(stderr, "%s: bad view option at '%s'\n", |
52 |
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progname, argv[0]); |
53 |
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exit(1); |
54 |
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} |
55 |
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++gotview; |
56 |
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argv += rv; argc -= rv; |
57 |
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} |
58 |
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++argv; --argc; |
59 |
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} |
60 |
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if (argc != 1) |
61 |
greg |
2.3 |
goto userr; |
62 |
greg |
2.8 |
if (!gotview) |
63 |
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while (fgets(linebuf, sizeof(linebuf), stdin) != NULL) { |
64 |
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if (linebuf[0] == '\n') |
65 |
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break; |
66 |
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if (isview(linebuf) && sscanview(&vw, linebuf) > 0) |
67 |
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++gotview; |
68 |
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} |
69 |
greg |
2.1 |
if (!gotview) { |
70 |
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fprintf(stderr, "%s: no view on standard input\n", progname); |
71 |
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exit(1); |
72 |
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} |
73 |
greg |
2.2 |
if ((err= setview(&vw)) != NULL) { |
74 |
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fprintf(stderr, "%s: %s\n", progname, err); |
75 |
greg |
2.1 |
exit(1); |
76 |
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} |
77 |
greg |
2.3 |
VCOPY(hvn, vw.hvec); |
78 |
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normalize(hvn); |
79 |
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VCOPY(vvn, vw.vvec); |
80 |
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normalize(vvn); |
81 |
greg |
2.8 |
if (isalpha(argv[0][0])) { /* print out variables */ |
82 |
greg |
2.3 |
switch (vw.type) { |
83 |
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case VT_PER: i=1; break; |
84 |
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case VT_PAR: i=2; break; |
85 |
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case VT_ANG: i=3; break; |
86 |
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case VT_HEM: i=4; break; |
87 |
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case VT_CYL: i=5; break; |
88 |
greg |
2.7 |
case VT_PLS: i=6; break; |
89 |
greg |
2.3 |
default: i=0; break; |
90 |
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} |
91 |
greg |
2.8 |
printf("%st:%d;", argv[0], i); |
92 |
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printf("%spx:%g;%spy:%g;%spz:%g;", argv[0], vw.vp[0], |
93 |
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argv[0], vw.vp[1], argv[0], vw.vp[2]); |
94 |
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printf("%sdx:%g;%sdy:%g;%sdz:%g;", argv[0], vw.vdir[0], |
95 |
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argv[0], vw.vdir[1], argv[0], vw.vdir[2]); |
96 |
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printf("%sd:%g;", argv[0], vw.vdist); |
97 |
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printf("%sux:%g;%suy:%g;%suz:%g;", argv[0], vw.vup[0], |
98 |
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argv[0], vw.vup[1], argv[0], vw.vup[2]); |
99 |
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printf("%sh:%g;%sv:%g;", argv[0], vw.horiz, |
100 |
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argv[0], vw.vert); |
101 |
greg |
2.3 |
printf("%ss:%g;%sl:%g;%so:%g;%sa:%g;", |
102 |
greg |
2.8 |
argv[0], vw.hoff, argv[0], vw.voff, |
103 |
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argv[0], vw.vfore, argv[0], vw.vaft); |
104 |
greg |
2.3 |
printf("%shx:%g;%shy:%g;%shz:%g;%shn:%g;", |
105 |
greg |
2.8 |
argv[0], hvn[0], argv[0], hvn[1], |
106 |
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argv[0], hvn[2], argv[0], sqrt(vw.hn2)); |
107 |
greg |
2.3 |
printf("%svx:%g;%svy:%g;%svz:%g;%svn:%g;\n", |
108 |
greg |
2.8 |
argv[0], vvn[0], argv[0], vvn[1], |
109 |
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argv[0], vvn[2], argv[0], sqrt(vw.vn2)); |
110 |
greg |
2.3 |
exit(0); |
111 |
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} |
112 |
greg |
2.8 |
if (!isflt(argv[0])) |
113 |
greg |
2.3 |
goto userr; |
114 |
greg |
2.8 |
dist = atof(argv[0]); |
115 |
greg |
2.1 |
for (i = 0; i < 3; i++) |
116 |
greg |
2.3 |
vw.vp[i] += dist*hvn[i]; |
117 |
greg |
2.2 |
fprintview(&vw, stdout); |
118 |
greg |
2.1 |
putchar('\n'); |
119 |
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exit(0); |
120 |
greg |
2.3 |
userr: |
121 |
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fprintf(stderr, "Usage: %s {offset|name}\n", progname); |
122 |
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exit(1); |
123 |
greg |
2.1 |
} |