src/util/vwright.c

#ifndef lint
static const char       RCSid[] = "$Id: vwright.c,v 2.7 2008/03/11 02:21:47 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];
        ++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)
                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[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]);
        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:	2.8
Committed:	Sun Jun 14 00:33:16 2009 UTC (14 years, 10 months ago) by greg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rad4R0
Changes since 2.7:	+54 -27 lines
Log Message:	Added new genklemsamp utility and made vwright more useful
#	User	Rev	Content
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			/*
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	2.8	++argv; --argc;
35			while (argc && argv[0][0] == '-' && argv[0][1] == 'v') {
36			int rv;
37			if (argc > 2 && argv[0][2] == 'f') {
38			rv = viewfile(argv[1], &vw, NULL);
39			if (rv <= 0) {
40			fprintf(stderr, "%s: %s file '%s'\n",
41			progname,
42			rv < 0 ? "cannot open view" :
43			"no view in", argv[1]);
44			exit(1);
45			}
46			++gotview;
47			++argv; --argc;
48			} else {
49			rv = getviewopt(&vw, argc, argv);
50			if (rv < 0) {
51			fprintf(stderr, "%s: bad view option at '%s'\n",
52			progname, argv[0]);
53			exit(1);
54			}
55			++gotview;
56			argv += rv; argc -= rv;
57			}
58			++argv; --argc;
59			}
60			if (argc != 1)
61	greg	2.3	goto userr;
62	greg	2.8	if (!gotview)
63			while (fgets(linebuf, sizeof(linebuf), stdin) != NULL) {
64			if (linebuf[0] == '\n')
65			break;
66			if (isview(linebuf) && sscanview(&vw, linebuf) > 0)
67			++gotview;
68			}
69	greg	2.1	if (!gotview) {
70			fprintf(stderr, "%s: no view on standard input\n", progname);
71			exit(1);
72			}
73	greg	2.2	if ((err= setview(&vw)) != NULL) {
74			fprintf(stderr, "%s: %s\n", progname, err);
75	greg	2.1	exit(1);
76			}
77	greg	2.3	VCOPY(hvn, vw.hvec);
78			normalize(hvn);
79			VCOPY(vvn, vw.vvec);
80			normalize(vvn);
81	greg	2.8	if (isalpha(argv[0][0])) { /* print out variables */
82	greg	2.3	switch (vw.type) {
83			case VT_PER: i=1; break;
84			case VT_PAR: i=2; break;
85			case VT_ANG: i=3; break;
86			case VT_HEM: i=4; break;
87			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			}
91	greg	2.8	printf("%st:%d;", argv[0], i);
92			printf("%spx:%g;%spy:%g;%spz:%g;", argv[0], vw.vp[0],
93			argv[0], vw.vp[1], argv[0], vw.vp[2]);
94			printf("%sdx:%g;%sdy:%g;%sdz:%g;", argv[0], vw.vdir[0],
95			argv[0], vw.vdir[1], argv[0], vw.vdir[2]);
96			printf("%sd:%g;", argv[0], vw.vdist);
97			printf("%sux:%g;%suy:%g;%suz:%g;", argv[0], vw.vup[0],
98			argv[0], vw.vup[1], argv[0], vw.vup[2]);
99			printf("%sh:%g;%sv:%g;", argv[0], vw.horiz,
100			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			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			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			argv[0], vvn[2], argv[0], sqrt(vw.vn2));
110	greg	2.3	exit(0);
111			}
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			exit(0);
120	greg	2.3	userr:
121			fprintf(stderr, "Usage: %s {offset\|name}\n", progname);
122			exit(1);
123	greg	2.1	}