1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor(s): Campbell Barton
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/bmesh/operators/bmo_symmetrize.c
* \ingroup bmesh
*
* Makes the mesh symmetrical by splitting along an axis and duplicating the geometry.
*/
#include "MEM_guardedalloc.h"
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "bmesh.h"
#include "intern/bmesh_operators_private.h"
#define ELE_OUT 1
void bmo_symmetrize_exec(BMesh *bm, BMOperator *op)
{
const float dist = BMO_slot_float_get(op->slots_in, "dist");
const int direction = BMO_slot_int_get(op->slots_in, "direction");
const int axis = direction % 3;
BMOperator op_bisect;
BMOperator op_dupe;
BMOperator op_weld;
BMOpSlot *slot_vertmap;
BMOpSlot *slot_targetmap;
float plane_no[3];
float scale[3];
BMOIter siter;
BMVert *v;
copy_v3_fl(plane_no, 0.0f);
copy_v3_fl(scale, 1.0f);
plane_no[axis] = direction > 2 ? 1.0f : -1.0f;
scale[axis] *= -1.0f;
/* Cut in half */
BMO_op_initf(bm, &op_bisect, op->flag,
"bisect_plane geom=%s plane_no=%v dist=%f clear_outer=%b use_snap_center=%b",
op, "input", plane_no, dist, true, true);
BMO_op_exec(bm, &op_bisect);
/* Duplicate */
BMO_op_initf(bm, &op_dupe, op->flag,
"duplicate geom=%S",
&op_bisect, "geom.out");
BMO_op_exec(bm, &op_dupe);
/* Flag for output (some will be merged) */
BMO_slot_buffer_flag_enable(bm, op_bisect.slots_out, "geom.out", BM_ALL_NOLOOP, ELE_OUT);
BMO_slot_buffer_flag_enable(bm, op_dupe.slots_out, "geom.out", BM_ALL_NOLOOP, ELE_OUT);
BMO_op_callf(bm, op->flag, "scale verts=%S vec=%v", &op_dupe, "geom.out", scale);
BMO_op_callf(bm, op->flag, "reverse_faces faces=%S", &op_dupe, "geom.out");
/* Weld verts */
BMO_op_init(bm, &op_weld, op->flag, "weld_verts");
slot_vertmap = BMO_slot_get(op_dupe.slots_out, "vert_map.out");
slot_targetmap = BMO_slot_get(op_weld.slots_in, "targetmap");
BMO_ITER (v, &siter, op_bisect.slots_out, "geom_cut.out", BM_VERT) {
BMVert *v_dupe = BMO_slot_map_elem_get(slot_vertmap, v);
BMO_slot_map_elem_insert(&op_weld, slot_targetmap, v_dupe, v);
}
BMO_op_exec(bm, &op_weld);
/* Cleanup */
BMO_op_finish(bm, &op_weld);
BMO_op_finish(bm, &op_dupe);
BMO_op_finish(bm, &op_bisect);
/* Create output */
BMO_slot_buffer_from_enabled_flag(bm, op, op->slots_out, "geom.out", BM_ALL_NOLOOP, ELE_OUT);
}
|
