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
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/** \file
* \ingroup bli
*/
/* The boolean functions in Blenlib use exact arithmetic, so require GMP. */
#ifdef WITH_GMP
# include "BLI_mesh_intersect.hh"
# include <functional>
namespace blender::meshintersect {
/**
* Enum values after BOOLEAN_NONE need to match BMESH_ISECT_BOOLEAN_... values in
* editmesh_intersect.c. */
enum class BoolOpType {
None = -1,
/* Aligned with #BooleanModifierOp. */
Intersect = 0,
Union = 1,
Difference = 2,
};
/**
* Do the boolean operation op on the mesh pm_in.
* The boolean operation has \a nshapes input shapes. Each is a disjoint subset of the input mesh.
* The shape_fn argument, when applied to an input face argument, says which shape it is in
* (should be a value from -1 to `nshapes - 1`: if -1, it is not part of any shape).
* The use_self argument says whether or not the function should assume that faces in the
* same shape intersect - if the argument is true, such self-intersections will be found.
* Sometimes the caller has already done a triangulation of the faces,
* and if so, *pm_triangulated contains a triangulation: if non-null, it contains a mesh
* of triangles, each of whose orig_field says which face in pm that triangle belongs to.
* pm argument isn't `const` because we may populate its verts (for debugging).
* Same goes for the pm_triangulated argument.
* The output #IMesh will have faces whose orig fields map back to faces and edges in
* the input mesh.
*/
IMesh boolean_mesh(IMesh &imesh,
BoolOpType op,
int nshapes,
std::function<int(int)> shape_fn,
bool use_self,
bool hole_tolerant,
IMesh *imesh_triangulated,
IMeshArena *arena);
/**
* This is like boolean, but operates on #IMesh's whose faces are all triangles.
* It is exposed mainly for unit testing, at the moment: boolean_mesh() uses
* it to do most of its work.
*/
IMesh boolean_trimesh(IMesh &tm_in,
BoolOpType op,
int nshapes,
std::function<int(int)> shape_fn,
bool use_self,
bool hole_tolerant,
IMeshArena *arena);
} // namespace blender::meshintersect
#endif /* WITH_GMP */
|
