src/util/vwright.c

#ifndef lint
static const char       RCSid[] = "$Id: vwright.c,v 2.8 2009/06/14 00:33:16 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    *err;
        int     gotview = 0;
        FVECT   hvn, vvn;
        double  dist;
        int     i;

        progname = argv[0];
        ++argv; --argc;
        while (argc && argv[0][0] == '-' && argv[0][1] == 'v') {
                int     rv;
                if (argc > 2 && argv[0][2] == 'f') {
                        rv = viewfile(argv[1], &vw, NULL);
                        if (rv <= 0) {
                                fprintf(stderr, "%s: %s file '%s'\n",
                                                progname,
                                                rv < 0 ? "cannot open view" :
                                                "no view in", argv[1]);
                                exit(1);
                        }
                        ++gotview;
                        ++argv; --argc;
                } else {
                        rv = getviewopt(&vw, argc, argv);
                        if (rv < 0) {
                                fprintf(stderr, "%s: bad view option at '%s'\n",
                                                progname, argv[0]);
                                exit(1);
                        }
                        ++gotview;
                        argv += rv; argc -= rv;
                }
                ++argv; --argc;
        }
        if (argc != 1)
                goto userr;
        if (!gotview) {
                gotview = viewfile(NULL, &vw, NULL);
                if (gotview <= 0) {
                        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[0][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;
                        case VT_PLS: i=6; break;
                        default: i=0; break;
                }
                printf("%st:%d;", argv[0], i);
                printf("%spx:%g;%spy:%g;%spz:%g;", argv[0], vw.vp[0],
                                argv[0], vw.vp[1], argv[0], vw.vp[2]);
                printf("%sdx:%g;%sdy:%g;%sdz:%g;", argv[0], vw.vdir[0],
                                argv[0], vw.vdir[1], argv[0], vw.vdir[2]);
                printf("%sd:%g;", argv[0], vw.vdist);
                printf("%sux:%g;%suy:%g;%suz:%g;", argv[0], vw.vup[0],
                                argv[0], vw.vup[1], argv[0], vw.vup[2]);
                printf("%sh:%g;%sv:%g;", argv[0], vw.horiz,
                                argv[0], vw.vert);
                printf("%ss:%g;%sl:%g;%so:%g;%sa:%g;",
                                argv[0], vw.hoff, argv[0], vw.voff,
                                argv[0], vw.vfore, argv[0], vw.vaft);
                printf("%shx:%g;%shy:%g;%shz:%g;%shn:%g;",
                                argv[0], hvn[0], argv[0], hvn[1],
                                argv[0], hvn[2], argv[0], sqrt(vw.hn2));
                printf("%svx:%g;%svy:%g;%svz:%g;%svn:%g;\n",
                                argv[0], vvn[0], argv[0], vvn[1],
                                argv[0], vvn[2], argv[0], sqrt(vw.vn2));
                exit(0);
        }
        if (!isflt(argv[0]))
                goto userr;
        dist = atof(argv[0]);
        VSUM(vw.vp, vw.vp, hvn, dist);
        fprintview(&vw, stdout);
        fputc('\n', stdout);
        exit(0);
userr:
        fprintf(stderr, "Usage: %s {offset|name}\n", progname);
        exit(1);
}
Revision:	2.9
Committed:	Sun Aug 21 14:45:25 2011 UTC (14 years, 2 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad5R0, rad5R1, rad4R2, rad4R1, rad4R2P1, rad4R2P2
Changes since 2.8:	+10 -15 lines
Log Message:	Minor code simplification
#	User	Rev	Content
1	greg	2.1	#ifndef lint
2	greg	2.9	static const char RCSid[] = "$Id: vwright.c,v 2.8 2009/06/14 00:33:16 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			fprintf(stderr, "Usage: %s {offset\|name}\n", progname);
117			exit(1);
118	greg	2.1	}