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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.
*
* The Original Code is Copyright (C) 2013 by Campbell Barton.
* All rights reserved.
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef __BMESH_EDGELOOP_H__
#define __BMESH_EDGELOOP_H__
/** \file blender/bmesh/intern/bmesh_edgeloop.h
* \ingroup bmesh
*/
struct ListBase;
struct BMEdgeLoopStore;
/* multiple edgeloops (ListBase) */
int BM_mesh_edgeloops_find(BMesh *bm, struct ListBase *r_lb,
bool (*test_fn)(BMEdge *, void *user_data), void *user_data);
bool BM_mesh_edgeloops_find_path(BMesh *bm, ListBase *r_eloops,
bool (*test_fn)(BMEdge *, void *user_data), void *user_data,
BMVert *v_src, BMVert *v_dst);
void BM_mesh_edgeloops_free(struct ListBase *eloops);
void BM_mesh_edgeloops_calc_center(BMesh *bm, struct ListBase *eloops);
void BM_mesh_edgeloops_calc_normal(BMesh *bm, struct ListBase *eloops);
void BM_mesh_edgeloops_calc_normal_aligned(BMesh *bm, struct ListBase *eloops,
const float no_align[3]);
void BM_mesh_edgeloops_calc_order(BMesh *UNUSED(bm), ListBase *eloops, const bool use_normals);
/* single edgeloop */
struct BMEdgeLoopStore *BM_edgeloop_copy(struct BMEdgeLoopStore *el_store);
struct BMEdgeLoopStore *BM_edgeloop_from_verts(BMVert **v_arr, const int v_arr_tot, bool is_closed);
void BM_edgeloop_free(struct BMEdgeLoopStore *el_store);
bool BM_edgeloop_is_closed(struct BMEdgeLoopStore *el_store);
int BM_edgeloop_length_get(struct BMEdgeLoopStore *el_store);
struct ListBase *BM_edgeloop_verts_get(struct BMEdgeLoopStore *el_store);
const float *BM_edgeloop_normal_get(struct BMEdgeLoopStore *el_store);
const float *BM_edgeloop_center_get(struct BMEdgeLoopStore *el_store);
void BM_edgeloop_edges_get(struct BMEdgeLoopStore *el_store, BMEdge **e_arr);
void BM_edgeloop_calc_center(BMesh *bm, struct BMEdgeLoopStore *el_store);
bool BM_edgeloop_calc_normal(BMesh *bm, struct BMEdgeLoopStore *el_store);
bool BM_edgeloop_calc_normal_aligned(BMesh *bm, struct BMEdgeLoopStore *el_store,
const float no_align[3]);
void BM_edgeloop_flip(BMesh *bm, struct BMEdgeLoopStore *el_store);
void BM_edgeloop_expand(BMesh *bm, struct BMEdgeLoopStore *el_store, int el_store_len);
bool BM_edgeloop_overlap_check(struct BMEdgeLoopStore *el_store_a, struct BMEdgeLoopStore *el_store_b);
#define BM_EDGELINK_NEXT(el_store, elink) \
(elink)->next ? elink->next : (BM_edgeloop_is_closed(el_store) ? BM_edgeloop_verts_get(el_store)->first : NULL)
#define BM_EDGELOOP_NEXT(el_store) \
(CHECK_TYPE_INLINE(el_store, struct BMEdgeLoopStore *), \
(struct BMEdgeLoopStore *)((LinkData *)el_store)->next)
#endif /* __BMESH_EDGELOOP_H__ */
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