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
|
/*
* ***** 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):
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/bmesh/operators/bmo_bisect_plane.c
* \ingroup bmesh
*
* Wrapper around #BM_mesh_bisect_plane
*/
#include "BLI_utildefines.h"
#include "BLI_math.h"
#include "bmesh.h"
#include "intern/bmesh_operators_private.h" /* own include */
#define ELE_NEW 1
#define ELE_INPUT 2
void bmo_bisect_plane_exec(BMesh *bm, BMOperator *op)
{
const float dist = BMO_slot_float_get(op->slots_in, "dist");
const bool clear_outer = BMO_slot_bool_get(op->slots_in, "clear_outer");
const bool clear_inner = BMO_slot_bool_get(op->slots_in, "clear_inner");
float plane_co[3];
float plane_no[3];
float plane[4];
BMO_slot_vec_get(op->slots_in, "plane_co", plane_co);
BMO_slot_vec_get(op->slots_in, "plane_no", plane_no);
if (is_zero_v3(plane_no)) {
BMO_error_raise(bm, op, BMERR_MESH_ERROR, "Zero normal given");
return;
}
plane_from_point_normal_v3(plane, plane_co, plane_no);
/* tag geometry to bisect */
BM_mesh_elem_hflag_disable_all(bm, BM_EDGE | BM_FACE, BM_ELEM_TAG, false);
BMO_slot_buffer_hflag_enable(bm, op->slots_in, "geom", BM_EDGE | BM_FACE, BM_ELEM_TAG, false);
BMO_slot_buffer_flag_enable(bm, op->slots_in, "geom", BM_ALL_NOLOOP, ELE_INPUT);
BM_mesh_bisect_plane(bm, plane, true,
ELE_NEW, dist);
if (clear_outer || clear_inner) {
BMOIter siter;
BMVert *v;
float plane_alt[4];
copy_v3_v3(plane_alt, plane);
if (clear_outer) {
plane_alt[3] = plane[3] - dist;
BMO_ITER (v, &siter, op->slots_in, "geom", BM_VERT) {
if (plane_point_side_v3(plane_alt, v->co) > 0.0f) {
BM_vert_kill(bm, v);
}
}
}
if (clear_inner) {
plane_alt[3] = plane[3] + dist;
BMO_ITER (v, &siter, op->slots_in, "geom", BM_VERT) {
if (plane_point_side_v3(plane_alt, v->co) < 0.0f) {
BM_vert_kill(bm, v);
}
}
}
}
BMO_slot_buffer_from_enabled_flag(bm, op, op->slots_out, "geom.out", BM_ALL_NOLOOP, ELE_NEW | ELE_INPUT);
BMO_slot_buffer_from_enabled_flag(bm, op, op->slots_out, "geom_cut.out", BM_VERT | BM_EDGE, ELE_NEW);
}
|