BRL-CAD
rot.c
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1 /* R O T . C
2  * BRL-CAD
3  *
4  * Copyright (c) 2008-2014 United States Government as represented by
5  * the U.S. Army Research Laboratory.
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public License
9  * version 2.1 as published by the Free Software Foundation.
10  *
11  * This library is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this file; see the file named COPYING for more
18  * information.
19  */
20 /** @file libged/rot.c
21  *
22  * The rot command.
23  *
24  */
25 
26 #include "common.h"
27 
28 #include <stdlib.h>
29 #include <ctype.h>
30 #include <string.h>
31 
32 #include "./ged_private.h"
33 
34 
35 int
36 ged_rot_args(struct ged *gedp, int argc, const char *argv[], char *coord, mat_t rmat)
37 {
38  vect_t rvec;
39  static const char *usage = "[-m|-v] x y z";
40 
43  GED_CHECK_ARGC_GT_0(gedp, argc, GED_ERROR);
44 
45  /* initialize result */
46  bu_vls_trunc(gedp->ged_result_str, 0);
47 
48  /* must be wanting help */
49  if (argc == 1) {
50  bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
51  return GED_HELP;
52  }
53 
54  /* process possible coord flag */
55  if (argv[1][0] == '-' && (argv[1][1] == 'v' || argv[1][1] == 'm') && argv[1][2] == '\0') {
56  *coord = argv[1][1];
57  --argc;
58  ++argv;
59  } else
60  *coord = gedp->ged_gvp->gv_coord;
61 
62  if (argc != 2 && argc != 4) {
63  bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
64  return GED_ERROR;
65  }
66 
67  if (argc == 2) {
68  if (bn_decode_vect(rvec, argv[1]) != 3) {
69  bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
70  return GED_ERROR;
71  }
72  } else {
73  double scan[3];
74 
75  if (sscanf(argv[1], "%lf", &scan[X]) < 1) {
76  bu_vls_printf(gedp->ged_result_str, "ged_eye: bad X value %s\n", argv[1]);
77  return GED_ERROR;
78  }
79 
80  if (sscanf(argv[2], "%lf", &scan[Y]) < 1) {
81  bu_vls_printf(gedp->ged_result_str, "ged_eye: bad Y value %s\n", argv[2]);
82  return GED_ERROR;
83  }
84 
85  if (sscanf(argv[3], "%lf", &scan[Z]) < 1) {
86  bu_vls_printf(gedp->ged_result_str, "ged_eye: bad Z value %s\n", argv[3]);
87  return GED_ERROR;
88  }
89 
90  /* convert from double to fastf_t */
91  VMOVE(rvec, scan);
92  }
93 
94  VSCALE(rvec, rvec, -1.0);
95  bn_mat_angles(rmat, rvec[X], rvec[Y], rvec[Z]);
96 
97  return GED_OK;
98 }
99 
100 
101 int
102 ged_rot(struct ged *gedp, int argc, const char *argv[])
103 {
104  int ret;
105  char coord;
106  mat_t rmat;
107 
108  if ((ret = ged_rot_args(gedp, argc, argv, &coord, rmat)) != GED_OK)
109  return ret;
110 
111  return _ged_do_rot(gedp, coord, rmat, (int (*)())0);
112 }
113 
114 
115 /*
116  * Local Variables:
117  * tab-width: 8
118  * mode: C
119  * indent-tabs-mode: t
120  * c-file-style: "stroustrup"
121  * End:
122  * ex: shiftwidth=4 tabstop=8
123  */
void usage(struct ged *gedp)
Definition: coil.c:315
#define GED_OK
Definition: ged.h:55
int ged_rot_args(struct ged *gedp, int argc, const char *argv[], char *coord, mat_t rmat)
Definition: rot.c:36
Definition: ged.h:338
void bu_vls_trunc(struct bu_vls *vp, int len)
Definition: vls.c:198
#define GED_CHECK_ARGC_GT_0(_gedp, _argc, _flags)
Definition: ged.h:202
Header file for the BRL-CAD common definitions.
#define GED_ERROR
Definition: ged.h:61
struct bview * ged_gvp
Definition: ged.h:361
Definition: color.c:49
#define GED_CHECK_VIEW(_gedp, _flags)
Definition: ged.h:140
#define GED_CHECK_DATABASE_OPEN(_gedp, _flags)
Definition: ged.h:114
int bn_decode_vect(vect_t v, const char *str)
struct bu_vls * ged_result_str
Definition: ged.h:357
int _ged_do_rot(struct ged *gedp, char coord, mat_t rmat, int(*func)())
Definition: vutil.c:103
void bn_mat_angles(mat_t mat, double alpha, double beta, double ggamma)
char gv_coord
coordinate system
Definition: bview.h:218
void bu_vls_printf(struct bu_vls *vls, const char *fmt,...) _BU_ATTR_PRINTF23
Definition: vls.c:694
#define GED_HELP
Definition: ged.h:62
Definition: color.c:51
int ged_rot(struct ged *gedp, int argc, const char *argv[])
Definition: rot.c:102
Definition: color.c:50