e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup bli
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*/
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/* The boolean functions in Blenlib use exact arithmetic, so require GMP. */
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#ifdef WITH_GMP
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# include "BLI_mesh_intersect.hh"
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# include <functional>
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namespace blender::meshintersect {
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/**
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* Enum values after BOOLEAN_NONE need to match BMESH_ISECT_BOOLEAN_... values in
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* `editmesh_intersect.cc`.
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*/
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enum class BoolOpType {
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None = -1,
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/* Aligned with #BooleanModifierOp. */
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Intersect = 0,
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Union = 1,
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Difference = 2,
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};
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/**
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* Do the boolean operation op on the mesh pm_in.
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* The boolean operation has \a nshapes input shapes. Each is a disjoint subset of the input mesh.
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* The shape_fn argument, when applied to an input face argument, says which shape it is in
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* (should be a value from -1 to `nshapes - 1`: if -1, it is not part of any shape).
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* The use_self argument says whether or not the function should assume that faces in the
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* same shape intersect - if the argument is true, such self-intersections will be found.
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* Sometimes the caller has already done a triangulation of the faces,
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* and if so, *pm_triangulated contains a triangulation: if non-null, it contains a mesh
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* of triangles, each of whose orig_field says which face in pm that triangle belongs to.
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* pm argument isn't `const` because we may populate its verts (for debugging).
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* Same goes for the pm_triangulated argument.
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* The output #IMesh will have faces whose orig fields map back to faces and edges in
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* the input mesh.
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*/
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IMesh boolean_mesh(IMesh &imesh,
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BoolOpType op,
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int nshapes,
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std::function<int(int)> shape_fn,
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bool use_self,
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bool hole_tolerant,
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IMesh *imesh_triangulated,
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IMeshArena *arena);
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/**
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* This is like boolean, but operates on #IMesh's whose faces are all triangles.
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* It is exposed mainly for unit testing, at the moment: boolean_mesh() uses
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* it to do most of its work.
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*/
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IMesh boolean_trimesh(IMesh &tm_in,
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BoolOpType op,
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int nshapes,
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std::function<int(int)> shape_fn,
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bool use_self,
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bool hole_tolerant,
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IMeshArena *arena);
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} // namespace blender::meshintersect
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#endif /* WITH_GMP */
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