ViewVC Help
View File | Revision Log | Show Annotations | Download File | Root Listing
root/radiance/ray/src/util/vwright.c
Revision: 2.10
Committed: Mon Mar 19 16:35:19 2018 UTC (6 years ago) by greg
Content type: text/plain
Branch: MAIN
CVS Tags: rad5R4, rad5R2, rad5R3, HEAD
Changes since 2.9: +2 -2 lines
Log Message:
Fixed usage message

File Contents

# User Rev Content
1 greg 2.1 #ifndef lint
2 greg 2.10 static const char RCSid[] = "$Id: vwright.c,v 2.9 2011/08/21 14:45:25 greg Exp $";
3 greg 2.1 #endif
4     /*
5     * Move a viewpoint the given distance to the right
6     */
7    
8    
9     #include "standard.h"
10    
11     #include "view.h"
12    
13 greg 2.3 #include <ctype.h>
14    
15 greg 2.2 VIEW vw = STDVIEW;
16 greg 2.1
17     char *progname;
18    
19    
20 schorsch 2.5 int
21     main(
22     int argc,
23     char *argv[]
24     )
25 greg 2.1 {
26 greg 2.2 char *err;
27 greg 2.1 int gotview = 0;
28 greg 2.3 FVECT hvn, vvn;
29 greg 2.1 double dist;
30 greg 2.9 int i;
31 greg 2.1
32     progname = argv[0];
33 greg 2.8 ++argv; --argc;
34     while (argc && argv[0][0] == '-' && argv[0][1] == 'v') {
35     int rv;
36     if (argc > 2 && argv[0][2] == 'f') {
37     rv = viewfile(argv[1], &vw, NULL);
38     if (rv <= 0) {
39     fprintf(stderr, "%s: %s file '%s'\n",
40     progname,
41     rv < 0 ? "cannot open view" :
42     "no view in", argv[1]);
43     exit(1);
44     }
45     ++gotview;
46     ++argv; --argc;
47     } else {
48     rv = getviewopt(&vw, argc, argv);
49     if (rv < 0) {
50     fprintf(stderr, "%s: bad view option at '%s'\n",
51     progname, argv[0]);
52     exit(1);
53     }
54     ++gotview;
55     argv += rv; argc -= rv;
56     }
57     ++argv; --argc;
58     }
59     if (argc != 1)
60 greg 2.3 goto userr;
61 greg 2.9 if (!gotview) {
62     gotview = viewfile(NULL, &vw, NULL);
63     if (gotview <= 0) {
64     fprintf(stderr, "%s: no view on standard input\n",
65     progname);
66     exit(1);
67 greg 2.8 }
68 greg 2.1 }
69 greg 2.2 if ((err= setview(&vw)) != NULL) {
70     fprintf(stderr, "%s: %s\n", progname, err);
71 greg 2.1 exit(1);
72     }
73 greg 2.3 VCOPY(hvn, vw.hvec);
74     normalize(hvn);
75     VCOPY(vvn, vw.vvec);
76     normalize(vvn);
77 greg 2.8 if (isalpha(argv[0][0])) { /* print out variables */
78 greg 2.3 switch (vw.type) {
79     case VT_PER: i=1; break;
80     case VT_PAR: i=2; break;
81     case VT_ANG: i=3; break;
82     case VT_HEM: i=4; break;
83     case VT_CYL: i=5; break;
84 greg 2.7 case VT_PLS: i=6; break;
85 greg 2.3 default: i=0; break;
86     }
87 greg 2.8 printf("%st:%d;", argv[0], i);
88     printf("%spx:%g;%spy:%g;%spz:%g;", argv[0], vw.vp[0],
89     argv[0], vw.vp[1], argv[0], vw.vp[2]);
90     printf("%sdx:%g;%sdy:%g;%sdz:%g;", argv[0], vw.vdir[0],
91     argv[0], vw.vdir[1], argv[0], vw.vdir[2]);
92     printf("%sd:%g;", argv[0], vw.vdist);
93     printf("%sux:%g;%suy:%g;%suz:%g;", argv[0], vw.vup[0],
94     argv[0], vw.vup[1], argv[0], vw.vup[2]);
95     printf("%sh:%g;%sv:%g;", argv[0], vw.horiz,
96     argv[0], vw.vert);
97 greg 2.3 printf("%ss:%g;%sl:%g;%so:%g;%sa:%g;",
98 greg 2.8 argv[0], vw.hoff, argv[0], vw.voff,
99     argv[0], vw.vfore, argv[0], vw.vaft);
100 greg 2.3 printf("%shx:%g;%shy:%g;%shz:%g;%shn:%g;",
101 greg 2.8 argv[0], hvn[0], argv[0], hvn[1],
102     argv[0], hvn[2], argv[0], sqrt(vw.hn2));
103 greg 2.3 printf("%svx:%g;%svy:%g;%svz:%g;%svn:%g;\n",
104 greg 2.8 argv[0], vvn[0], argv[0], vvn[1],
105     argv[0], vvn[2], argv[0], sqrt(vw.vn2));
106 greg 2.3 exit(0);
107     }
108 greg 2.8 if (!isflt(argv[0]))
109 greg 2.3 goto userr;
110 greg 2.8 dist = atof(argv[0]);
111 greg 2.9 VSUM(vw.vp, vw.vp, hvn, dist);
112 greg 2.2 fprintview(&vw, stdout);
113 greg 2.9 fputc('\n', stdout);
114 greg 2.1 exit(0);
115 greg 2.3 userr:
116 greg 2.10 fprintf(stderr, "Usage: %s [view options] {offset|name}\n", progname);
117 greg 2.3 exit(1);
118 greg 2.1 }