BRL-CAD
keypoint.c
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1 /* K E Y P O I N 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/keypoint.c
21  *
22  * The keypoint 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_keypoint(struct ged *gedp, int argc, const char *argv[])
37 {
38  point_t keypoint;
39  double scan[3];
40  static const char *usage = "[x y z]";
41 
44  GED_CHECK_ARGC_GT_0(gedp, argc, GED_ERROR);
45 
46  /* initialize result */
47  bu_vls_trunc(gedp->ged_result_str, 0);
48 
49  /* get keypoint */
50  if (argc == 1) {
51  VSCALE(keypoint, gedp->ged_gvp->gv_keypoint, gedp->ged_wdbp->dbip->dbi_base2local);
52  bn_encode_vect(gedp->ged_result_str, keypoint);
53 
54  return GED_OK;
55  }
56 
57  if (argc != 2 && argc != 4) {
58  bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
59  return GED_ERROR;
60  }
61 
62  /* set view keypoint */
63  if (argc == 2) {
64  if (bn_decode_vect(keypoint, argv[1]) != 3) {
65  bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
66  return GED_ERROR;
67  }
68  } else {
69  if (sscanf(argv[1], "%lf", &scan[X]) != 1) {
70  bu_vls_printf(gedp->ged_result_str, "ged_keypoint: bad X value - %s\n", argv[1]);
71  return GED_ERROR;
72  }
73 
74  if (sscanf(argv[2], "%lf", &scan[Y]) != 1) {
75  bu_vls_printf(gedp->ged_result_str, "ged_keypoint: bad Y value - %s\n", argv[2]);
76  return GED_ERROR;
77  }
78 
79  if (sscanf(argv[3], "%lf", &scan[Z]) != 1) {
80  bu_vls_printf(gedp->ged_result_str, "ged_keypoint: bad Z value - %s\n", argv[3]);
81  return GED_ERROR;
82  }
83 
84  /* convert from double to fastf_t */
85  VMOVE(keypoint, scan);
86  }
87 
88  VSCALE(gedp->ged_gvp->gv_keypoint, keypoint, gedp->ged_wdbp->dbip->dbi_local2base);
89 
90  return GED_OK;
91 }
92 
93 
94 /*
95  * Local Variables:
96  * tab-width: 8
97  * mode: C
98  * indent-tabs-mode: t
99  * c-file-style: "stroustrup"
100  * End:
101  * ex: shiftwidth=4 tabstop=8
102  */
void usage(struct ged *gedp)
Definition: coil.c:315
#define GED_OK
Definition: ged.h:55
void bn_encode_vect(struct bu_vls *vp, const vect_t v)
Definition: ged.h:338
struct db_i * dbip
Definition: raytrace.h:1266
vect_t gv_keypoint
Definition: bview.h:217
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
struct rt_wdb * ged_wdbp
Definition: ged.h:340
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 ged_keypoint(struct ged *gedp, int argc, const char *argv[])
Definition: keypoint.c:36
int bn_decode_vect(vect_t v, const char *str)
struct bu_vls * ged_result_str
Definition: ged.h:357
double dbi_base2local
unit conversion factors
Definition: raytrace.h:808
void bu_vls_printf(struct bu_vls *vls, const char *fmt,...) _BU_ATTR_PRINTF23
Definition: vls.c:694
Definition: color.c:51
double dbi_local2base
local2mm
Definition: raytrace.h:807
Definition: color.c:50