BRL-CAD
instance.c
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1 /* I N S T A N C E . 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/instance.c
21  *
22  * The instance command.
23  *
24  */
25 
26 #include "common.h"
27 
28 #include <string.h>
29 
30 #include "bu/cmd.h"
31 #include "wdb.h"
32 
33 #include "./ged_private.h"
34 
35 
36 int
37 ged_instance(struct ged *gedp, int argc, const char *argv[])
38 {
39  struct directory *dp;
40  db_op_t oper;
41  static const char *usage = "obj comb [op]";
42 
45  GED_CHECK_ARGC_GT_0(gedp, argc, GED_ERROR);
46 
47  /* initialize result */
48  bu_vls_trunc(gedp->ged_result_str, 0);
49 
50  /* must be wanting help */
51  if (argc == 1) {
52  bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
53  return GED_HELP;
54  }
55 
56  if (argc < 3 || 4 < argc) {
57  bu_vls_printf(gedp->ged_result_str, "Usage: %s %s", argv[0], usage);
58  return GED_ERROR;
59  }
60 
61  if ((dp = db_lookup(gedp->ged_wdbp->dbip, argv[1], LOOKUP_NOISY)) == RT_DIR_NULL)
62  return GED_ERROR;
63 
64  oper = WMOP_UNION;
65  if (argc == 4)
66  oper = db_str2op(argv[3]);
67 
68  if (oper == DB_OP_NULL) {
69  bu_vls_printf(gedp->ged_result_str, "bad operation: %c (0x%x)\n", argv[3][0], argv[3][0]);
70  return GED_ERROR;
71  }
72 
73  if (_ged_combadd(gedp, dp, (char *)argv[2], 0, oper, 0, 0) == RT_DIR_NULL)
74  return GED_ERROR;
75 
76  return GED_OK;
77 }
78 
79 
80 /*
81  * Local Variables:
82  * tab-width: 8
83  * mode: C
84  * indent-tabs-mode: t
85  * c-file-style: "stroustrup"
86  * End:
87  * ex: shiftwidth=4 tabstop=8
88  */
void usage(struct ged *gedp)
Definition: coil.c:315
#define GED_OK
Definition: ged.h:55
Definition: ged.h:338
struct db_i * dbip
Definition: raytrace.h:1266
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 directory * db_lookup(const struct db_i *, const char *name, int noisy)
Definition: db_lookup.c:153
struct rt_wdb * ged_wdbp
Definition: ged.h:340
Header file for the BRL-CAD common definitions.
db_op_t db_str2op(const char *str)
Definition: op.c:31
#define WMOP_UNION
Definition: wdb.h:887
#define GED_ERROR
Definition: ged.h:61
#define GED_CHECK_DATABASE_OPEN(_gedp, _flags)
Definition: ged.h:114
db_op_t
Definition: op.h:33
struct bu_vls * ged_result_str
Definition: ged.h:357
void bu_vls_printf(struct bu_vls *vls, const char *fmt,...) _BU_ATTR_PRINTF23
Definition: vls.c:694
#define RT_DIR_NULL
Definition: raytrace.h:875
#define LOOKUP_NOISY
Definition: raytrace.h:892
Definition: op.h:34
#define GED_HELP
Definition: ged.h:62
struct directory * _ged_combadd(struct ged *gedp, struct directory *objp, char *combname, int region_flag, db_op_t relation, int ident, int air)
Definition: comb.c:680
#define GED_CHECK_READ_ONLY(_gedp, _flags)
Definition: ged.h:181
int ged_instance(struct ged *gedp, int argc, const char *argv[])
Definition: instance.c:37