src/util/vwright.c

#ifndef lint
static const char       RCSid[] = "$Id: vwright.c,v 2.4 2003/02/22 02:07:30 greg Exp $";
#endif
/*
 * Move a viewpoint the given distance to the right
 */


#include "standard.h"

#include "view.h"

#include <ctype.h>

VIEW    vw = STDVIEW;

char    *progname;


int
main(
        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:	2.5
Committed:	Fri Mar 26 23:34:24 2004 UTC (20 years, 1 month ago) by schorsch
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad3R6, rad3R6P1
Changes since 2.4:	+6 -4 lines
Log Message:	Continued ANSIfication.
#	User	Rev	Content
1	greg	2.1	#ifndef lint
2	schorsch	2.5	static const char RCSid[] = "$Id: vwright.c,v 2.4 2003/02/22 02:07:30 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			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;
31			register int i;
32
33			progname = argv[0];
34	greg	2.3	if (argc != 2)
35			goto userr;
36	greg	2.1	while (fgets(linebuf, sizeof(linebuf), stdin) != NULL) {
37			if (linebuf[0] == '\n')
38			break;
39	greg	2.2	if (isview(linebuf) && sscanview(&vw, linebuf) > 0)
40	greg	2.1	gotview++;
41			}
42			if (!gotview) {
43			fprintf(stderr, "%s: no view on standard input\n", progname);
44			exit(1);
45			}
46	greg	2.2	if ((err= setview(&vw)) != NULL) {
47			fprintf(stderr, "%s: %s\n", progname, err);
48	greg	2.1	exit(1);
49			}
50	greg	2.3	VCOPY(hvn, vw.hvec);
51			normalize(hvn);
52			VCOPY(vvn, vw.vvec);
53			normalize(vvn);
54			if (isalpha(argv[1][0])) { /* print out variables */
55			switch (vw.type) {
56			case VT_PER: i=1; break;
57			case VT_PAR: i=2; break;
58			case VT_ANG: i=3; break;
59			case VT_HEM: i=4; break;
60			case VT_CYL: i=5; break;
61			default: i=0; break;
62			}
63			printf("%st:%d;", argv[1], i);
64			printf("%spx:%g;%spy:%g;%spz:%g;", argv[1], vw.vp[0],
65			argv[1], vw.vp[1], argv[1], vw.vp[2]);
66			printf("%sdx:%g;%sdy:%g;%sdz:%g;", argv[1], vw.vdir[0],
67			argv[1], vw.vdir[1], argv[1], vw.vdir[2]);
68			printf("%sux:%g;%suy:%g;%suz:%g;", argv[1], vw.vup[0],
69			argv[1], vw.vup[1], argv[1], vw.vup[2]);
70			printf("%sh:%g;%sv:%g;", argv[1], vw.horiz,
71			argv[1], vw.vert);
72			printf("%ss:%g;%sl:%g;%so:%g;%sa:%g;",
73			argv[1], vw.hoff, argv[1], vw.voff,
74			argv[1], vw.vfore, argv[1], vw.vaft);
75			printf("%shx:%g;%shy:%g;%shz:%g;%shn:%g;",
76			argv[1], hvn[0], argv[1], hvn[1],
77			argv[1], hvn[2], argv[1], sqrt(vw.hn2));
78			printf("%svx:%g;%svy:%g;%svz:%g;%svn:%g;\n",
79			argv[1], vvn[0], argv[1], vvn[1],
80			argv[1], vvn[2], argv[1], sqrt(vw.vn2));
81			exit(0);
82			}
83			if (!isflt(argv[1]))
84			goto userr;
85			dist = atof(argv[1]);
86	greg	2.1	for (i = 0; i < 3; i++)
87	greg	2.3	vw.vp[i] += dist*hvn[i];
88	greg	2.2	fprintview(&vw, stdout);
89	greg	2.1	putchar('\n');
90			exit(0);
91	greg	2.3	userr:
92			fprintf(stderr, "Usage: %s {offset\|name}\n", progname);
93			exit(1);
94	greg	2.1	}