6192695a94
Generally the `extern "C" {` brackets shouldn't be added around other
headers since it causes problems when using C++ features in them.
Follow that convention for the "bmesh.h" header.
91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2013 by Campbell Barton. All rights reserved. */
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#pragma once
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/** \file
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* \ingroup bmesh
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct BMEdgeLoopStore;
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struct GSet;
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struct ListBase;
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/* multiple edgeloops (ListBase) */
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/**
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* \return listbase of listbases, each linking to a vertex.
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*/
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int BM_mesh_edgeloops_find(BMesh *bm,
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struct ListBase *r_eloops,
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bool (*test_fn)(BMEdge *, void *user_data),
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void *user_data);
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bool BM_mesh_edgeloops_find_path(BMesh *bm,
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ListBase *r_eloops,
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bool (*test_fn)(BMEdge *, void *user_data),
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void *user_data,
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BMVert *v_src,
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BMVert *v_dst);
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void BM_mesh_edgeloops_free(struct ListBase *eloops);
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void BM_mesh_edgeloops_calc_center(BMesh *bm, struct ListBase *eloops);
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void BM_mesh_edgeloops_calc_normal(BMesh *bm, struct ListBase *eloops);
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void BM_mesh_edgeloops_calc_normal_aligned(BMesh *bm,
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struct ListBase *eloops,
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const float no_align[3]);
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void BM_mesh_edgeloops_calc_order(BMesh *bm, ListBase *eloops, bool use_normals);
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/**
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* Copy a single edge-loop.
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* \return new edge-loops.
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*/
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struct BMEdgeLoopStore *BM_edgeloop_copy(struct BMEdgeLoopStore *el_store);
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struct BMEdgeLoopStore *BM_edgeloop_from_verts(BMVert **v_arr, int v_arr_tot, bool is_closed);
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void BM_edgeloop_free(struct BMEdgeLoopStore *el_store);
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bool BM_edgeloop_is_closed(struct BMEdgeLoopStore *el_store);
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int BM_edgeloop_length_get(struct BMEdgeLoopStore *el_store);
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struct ListBase *BM_edgeloop_verts_get(struct BMEdgeLoopStore *el_store);
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const float *BM_edgeloop_normal_get(struct BMEdgeLoopStore *el_store);
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const float *BM_edgeloop_center_get(struct BMEdgeLoopStore *el_store);
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/**
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* Edges are assigned to one vert -> the next.
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*/
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void BM_edgeloop_edges_get(struct BMEdgeLoopStore *el_store, BMEdge **e_arr);
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void BM_edgeloop_calc_center(BMesh *bm, struct BMEdgeLoopStore *el_store);
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bool BM_edgeloop_calc_normal(BMesh *bm, struct BMEdgeLoopStore *el_store);
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/**
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* For open loops that are straight lines,
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* calculating the normal as if it were a polygon is meaningless.
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*
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* Instead use an alignment vector and calculate the normal based on that.
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*/
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bool BM_edgeloop_calc_normal_aligned(BMesh *bm,
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struct BMEdgeLoopStore *el_store,
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const float no_align[3]);
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void BM_edgeloop_flip(BMesh *bm, struct BMEdgeLoopStore *el_store);
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void BM_edgeloop_expand(BMesh *bm,
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struct BMEdgeLoopStore *el_store,
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int el_store_len,
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bool split,
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struct GSet *split_edges);
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bool BM_edgeloop_overlap_check(struct BMEdgeLoopStore *el_store_a,
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struct BMEdgeLoopStore *el_store_b);
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#define BM_EDGELINK_NEXT(el_store, elink) \
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(elink)->next ? \
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(elink)->next : \
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(BM_edgeloop_is_closed(el_store) ? BM_edgeloop_verts_get(el_store)->first : NULL)
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#define BM_EDGELOOP_NEXT(el_store) \
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(CHECK_TYPE_INLINE(el_store, struct BMEdgeLoopStore *), \
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(struct BMEdgeLoopStore *)((LinkData *)el_store)->next)
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#ifdef __cplusplus
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}
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#endif
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