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/**
* bmesh_structure.h jan 2007
*
* The lowest level of functionality for manipulating bmesh structures.
* None of these functions should ever be exported to the rest of Blender.
*
* ***** 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. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2004 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Geoffrey Bantle.
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef BM_STRUCTURE_H
#define BM_STRUCTURE_H
/*low-level, base bmesh API. in the vast majority of cases thes should not be
used directly. if absolutely necassary, see function defitions in code for
descriptive comments. but seriously, don't use this stuff.
*/
struct ListBase;
void remove_loop_radial_link(BMLoop *l);
/*DOUBLE CIRCULAR LINKED LIST FUNCTIONS*/
void bmesh_cycle_append(void *h, void *nt);
int bmesh_cycle_remove(void *h, void *remn);
int bmesh_cycle_validate(int len, void *h);
int bmesh_cycle_length(void *h);
/* LOOP CYCLE MANAGEMENT */
int bmesh_loop_validate(BMFace *f);
/*DISK CYCLE MANAGMENT*/
int bmesh_disk_append_edge(struct BMEdge *e, struct BMVert *v);
void bmesh_disk_remove_edge(struct BMEdge *e, struct BMVert *v);
struct BMEdge *bmesh_disk_nextedge(struct BMEdge *e, struct BMVert *v);
struct BMNode *bmesh_disk_getpointer(struct BMEdge *e, struct BMVert *v);
int bmesh_disk_count_facevert(struct BMVert *v);
struct BMEdge *bmesh_disk_find_first_faceedge(struct BMEdge *e, struct BMVert *v);
struct BMEdge *bmesh_disk_find_next_faceedge(struct BMEdge *e, struct BMVert *v);
/*RADIAL CYCLE MANAGMENT*/
void bmesh_radial_append(struct BMEdge *e, struct BMLoop *l);
void bmesh_radial_remove_loop(struct BMLoop *l, struct BMEdge *e);
int bmesh_radial_find_face(struct BMEdge *e, struct BMFace *f);
struct BMLoop *bmesh_radial_nextloop(struct BMLoop *l);
int bmesh_radial_count_facevert(struct BMLoop *l, struct BMVert *v);
struct BMLoop *bmesh_radial_find_first_facevert(struct BMLoop *l, struct BMVert *v);
struct BMLoop *bmesh_radial_find_next_facevert(struct BMLoop *l, struct BMVert *v);
int bmesh_radial_validate(int radlen, struct BMLoop *l);
/*EDGE UTILITIES*/
int bmesh_vert_in_edge(struct BMEdge *e, struct BMVert *v);
int bmesh_verts_in_edge(struct BMVert *v1, struct BMVert *v2, struct BMEdge *e);
int bmesh_edge_swapverts(struct BMEdge *e, struct BMVert *orig, struct BMVert *newv); /*relink edge*/
struct BMVert *bmesh_edge_getothervert(struct BMEdge *e, struct BMVert *v);
int bmesh_disk_hasedge(struct BMVert *v, struct BMEdge *e);
struct BMEdge *bmesh_disk_existedge(BMVert *v1, BMVert *v2);
struct BMEdge *bmesh_disk_next_edgeflag(struct BMEdge *e, struct BMVert *v, int eflag, int tflag);
int bmesh_disk_count_edgeflag(struct BMVert *v, int eflag, int tflag);
int bmesh_disk_validate(int len, struct BMEdge *e, struct BMVert *v);
/*EULER API - For modifying structure*/
struct BMVert *bmesh_mv(struct BMesh *bm, float *vec);
struct BMEdge *bmesh_me(struct BMesh *bm, struct BMVert *v1, struct BMVert *v2);
struct BMFace *bmesh_mf(struct BMesh *bm, struct BMVert *v1, struct BMVert *v2, struct BMEdge **elist, int len);
int bmesh_kv(struct BMesh *bm, struct BMVert *v);
int bmesh_ke(struct BMesh *bm, struct BMEdge *e);
int bmesh_kf(struct BMesh *bm, struct BMFace *bply);
struct BMVert *bmesh_semv(struct BMesh *bm, struct BMVert *tv, struct BMEdge *e, struct BMEdge **re);
struct BMFace *bmesh_sfme(struct BMesh *bm, struct BMFace *f, struct BMVert *v1,
struct BMVert *v2, struct BMLoop **rl, struct ListBase *holes);
int bmesh_jekv(struct BMesh *bm, struct BMEdge *ke, struct BMVert *kv);
int bmesh_loop_reverse(struct BMesh *bm, struct BMFace *f);
struct BMFace *bmesh_jfke(struct BMesh *bm, struct BMFace *f1, struct BMFace *f2, struct BMEdge *e);
struct BMVert *bmesh_urmv(struct BMesh *bm, struct BMFace *sf, struct BMVert *sv);
//int *bmesh_grkv(struct BMesh *bm, struct BMFace *sf, struct BMVert *kv);
#endif
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