src/util/vwright.c

#ifndef lint
static const char       RCSid[] = "$Id$";
#endif
/*
 * Move a viewpoint the given distance to the right
 */


#include "standard.h"

#include "view.h"

#include <ctype.h>

VIEW    vw = STDVIEW;

char    *progname;


main(argc, argv)
int     argc;
char    *argv[];
{
        char    linebuf[256];
        char    *err;
        int     gotview = 0;
        FVECT   hvn, vvn;
        double  dist;
        register int    i;

        progname = argv[0];
        if (argc != 2)
                goto userr;
        while (fgets(linebuf, sizeof(linebuf), stdin) != NULL) {
                if (linebuf[0] == '\n')
                        break;
                if (isview(linebuf) && sscanview(&vw, linebuf) > 0)
                        gotview++;
        }
        if (!gotview) {
                fprintf(stderr, "%s: no view on standard input\n", progname);
                exit(1);
        }
        if ((err= setview(&vw)) != NULL) {
                fprintf(stderr, "%s: %s\n", progname, err);
                exit(1);
        }
        VCOPY(hvn, vw.hvec);
        normalize(hvn);
        VCOPY(vvn, vw.vvec);
        normalize(vvn);
        if (isalpha(argv[1][0])) {      /* print out variables */
                switch (vw.type) {
                        case VT_PER: i=1; break;
                        case VT_PAR: i=2; break;
                        case VT_ANG: i=3; break;
                        case VT_HEM: i=4; break;
                        case VT_CYL: i=5; break;
                        default: i=0; break;
                }
                printf("%st:%d;", argv[1], i);
                printf("%spx:%g;%spy:%g;%spz:%g;", argv[1], vw.vp[0],
                                argv[1], vw.vp[1], argv[1], vw.vp[2]);
                printf("%sdx:%g;%sdy:%g;%sdz:%g;", argv[1], vw.vdir[0],
                                argv[1], vw.vdir[1], argv[1], vw.vdir[2]);
                printf("%sux:%g;%suy:%g;%suz:%g;", argv[1], vw.vup[0],
                                argv[1], vw.vup[1], argv[1], vw.vup[2]);
                printf("%sh:%g;%sv:%g;", argv[1], vw.horiz,
                                argv[1], vw.vert);
                printf("%ss:%g;%sl:%g;%so:%g;%sa:%g;",
                                argv[1], vw.hoff, argv[1], vw.voff,
                                argv[1], vw.vfore, argv[1], vw.vaft);
                printf("%shx:%g;%shy:%g;%shz:%g;%shn:%g;",
                                argv[1], hvn[0], argv[1], hvn[1],
                                argv[1], hvn[2], argv[1], sqrt(vw.hn2));
                printf("%svx:%g;%svy:%g;%svz:%g;%svn:%g;\n",
                                argv[1], vvn[0], argv[1], vvn[1],
                                argv[1], vvn[2], argv[1], sqrt(vw.vn2));
                exit(0);
        }
        if (!isflt(argv[1]))
                goto userr;
        dist = atof(argv[1]);
        for (i = 0; i < 3; i++)
                vw.vp[i] += dist*hvn[i];
        fprintview(&vw, stdout);
        putchar('\n');
        exit(0);
userr:
        fprintf(stderr, "Usage: %s {offset|name}\n", progname);
        exit(1);
}
Revision:	2.4
Committed:	Sat Feb 22 02:07:30 2003 UTC (22 years, 8 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R5
Changes since 2.3:	+1 -4 lines
Log Message:	Changes and check-in for 3.5 release Includes new source files and modifications not recorded for many years See ray/doc/notes/ReleaseNotes for notes between 3.1 and 3.5 release
#	User	Rev	Content
1	greg	2.1	#ifndef lint
2	greg	2.4	static const char RCSid[] = "$Id$";
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			main(argc, argv)
21			int argc;
22			char *argv[];
23			{
24			char linebuf[256];
25	greg	2.2	char *err;
26	greg	2.1	int gotview = 0;
27	greg	2.3	FVECT hvn, vvn;
28	greg	2.1	double dist;
29			register int i;
30
31			progname = argv[0];
32	greg	2.3	if (argc != 2)
33			goto userr;
34	greg	2.1	while (fgets(linebuf, sizeof(linebuf), stdin) != NULL) {
35			if (linebuf[0] == '\n')
36			break;
37	greg	2.2	if (isview(linebuf) && sscanview(&vw, linebuf) > 0)
38	greg	2.1	gotview++;
39			}
40			if (!gotview) {
41			fprintf(stderr, "%s: no view on standard input\n", progname);
42			exit(1);
43			}
44	greg	2.2	if ((err= setview(&vw)) != NULL) {
45			fprintf(stderr, "%s: %s\n", progname, err);
46	greg	2.1	exit(1);
47			}
48	greg	2.3	VCOPY(hvn, vw.hvec);
49			normalize(hvn);
50			VCOPY(vvn, vw.vvec);
51			normalize(vvn);
52			if (isalpha(argv[1][0])) { /* print out variables */
53			switch (vw.type) {
54			case VT_PER: i=1; break;
55			case VT_PAR: i=2; break;
56			case VT_ANG: i=3; break;
57			case VT_HEM: i=4; break;
58			case VT_CYL: i=5; break;
59			default: i=0; break;
60			}
61			printf("%st:%d;", argv[1], i);
62			printf("%spx:%g;%spy:%g;%spz:%g;", argv[1], vw.vp[0],
63			argv[1], vw.vp[1], argv[1], vw.vp[2]);
64			printf("%sdx:%g;%sdy:%g;%sdz:%g;", argv[1], vw.vdir[0],
65			argv[1], vw.vdir[1], argv[1], vw.vdir[2]);
66			printf("%sux:%g;%suy:%g;%suz:%g;", argv[1], vw.vup[0],
67			argv[1], vw.vup[1], argv[1], vw.vup[2]);
68			printf("%sh:%g;%sv:%g;", argv[1], vw.horiz,
69			argv[1], vw.vert);
70			printf("%ss:%g;%sl:%g;%so:%g;%sa:%g;",
71			argv[1], vw.hoff, argv[1], vw.voff,
72			argv[1], vw.vfore, argv[1], vw.vaft);
73			printf("%shx:%g;%shy:%g;%shz:%g;%shn:%g;",
74			argv[1], hvn[0], argv[1], hvn[1],
75			argv[1], hvn[2], argv[1], sqrt(vw.hn2));
76			printf("%svx:%g;%svy:%g;%svz:%g;%svn:%g;\n",
77			argv[1], vvn[0], argv[1], vvn[1],
78			argv[1], vvn[2], argv[1], sqrt(vw.vn2));
79			exit(0);
80			}
81			if (!isflt(argv[1]))
82			goto userr;
83			dist = atof(argv[1]);
84	greg	2.1	for (i = 0; i < 3; i++)
85	greg	2.3	vw.vp[i] += dist*hvn[i];
86	greg	2.2	fprintview(&vw, stdout);
87	greg	2.1	putchar('\n');
88			exit(0);
89	greg	2.3	userr:
90			fprintf(stderr, "Usage: %s {offset\|name}\n", progname);
91			exit(1);
92	greg	2.1	}