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/*
* ***** 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): Joseph Eagar.
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef __BMESH_POLYGON_H__
#define __BMESH_POLYGON_H__
/** \file blender/bmesh/intern/bmesh_polygon.h
* \ingroup bmesh
*/
struct EdgeHash;
struct Heap;
#include "BLI_compiler_attrs.h"
void BM_bmesh_calc_tessellation(BMesh *bm, BMLoop *(*looptris)[3], int *r_looptris_tot);
void BM_face_calc_tessellation(const BMFace *f, BMLoop **r_loops, unsigned int (*r_index)[3]);
float BM_face_calc_normal(const BMFace *f, float r_no[3]) ATTR_NONNULL();
float BM_face_calc_normal_vcos(BMesh *bm, BMFace *f, float r_no[3],
float const (*vertexCos)[3]) ATTR_NONNULL();
float BM_face_calc_normal_subset(BMLoop *l_first, BMLoop *l_last, float r_no[3]) ATTR_NONNULL();
float BM_face_calc_area(BMFace *f) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
float BM_face_calc_perimeter(BMFace *f) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
void BM_face_calc_plane(BMFace *f, float r_plane[3]) ATTR_NONNULL();
void BM_face_calc_center_bounds(BMFace *f, float center[3]) ATTR_NONNULL();
void BM_face_calc_center_mean(BMFace *f, float center[3]) ATTR_NONNULL();
void BM_face_calc_center_mean_vcos(BMesh *bm, BMFace *f, float r_cent[3],
float const (*vertexCos)[3]) ATTR_NONNULL();
void BM_face_calc_center_mean_weighted(BMFace *f, float center[3]) ATTR_NONNULL();
void BM_face_normal_update(BMFace *f) ATTR_NONNULL();
void BM_edge_normals_update(BMEdge *e) ATTR_NONNULL();
bool BM_vert_normal_update_ex(BMVert *v, const char hflag, float r_no[3]);
void BM_vert_normal_update(BMVert *v) ATTR_NONNULL();
void BM_vert_normal_update_all(BMVert *v) ATTR_NONNULL();
void BM_face_normal_flip(BMesh *bm, BMFace *f) ATTR_NONNULL();
bool BM_face_point_inside_test(BMFace *f, const float co[3]) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
void BM_face_triangulate(
BMesh *bm, BMFace *f,
BMFace **r_faces_new,
int *r_faces_new_tot,
BMEdge **r_edges_new,
int *r_edges_new_tot,
const int quad_method, const int ngon_method,
const bool use_tag,
struct MemArena *pf_arena,
struct Heap *pf_heap, struct EdgeHash *pf_ehash
) ATTR_NONNULL(1, 2);
void BM_face_splits_check_legal(BMesh *bm, BMFace *f, BMLoop *(*loops)[2], int len) ATTR_NONNULL();
void BM_face_splits_check_optimal(BMFace *f, BMLoop *(*loops)[2], int len) ATTR_NONNULL();
void BM_face_as_array_vert_tri(BMFace *f, BMVert *r_verts[3]) ATTR_NONNULL();
void BM_face_as_array_vert_quad(BMFace *f, BMVert *r_verts[4]) ATTR_NONNULL();
void BM_face_as_array_loop_tri(BMFace *f, BMLoop *r_loops[3]) ATTR_NONNULL();
void BM_face_as_array_loop_quad(BMFace *f, BMLoop *r_loops[4]) ATTR_NONNULL();
void BM_vert_tri_calc_plane(BMVert *verts[3], float r_plane[3]);
#endif /* __BMESH_POLYGON_H__ */
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