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/**
* $Id:
*
* ***** 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.
*
* Contributor(s): Martin Poirier
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef REEB_H_
#define REEB_H_
#include "DNA_listBase.h"
struct EdgeHash;
struct ReebArc;
struct ReebEdge;
struct ReebNode;
typedef struct ReebGraph {
ListBase arcs;
ListBase nodes;
int totnodes;
struct EdgeHash *emap;
} ReebGraph;
typedef struct EmbedBucket {
float val;
int nv;
float p[3];
} EmbedBucket;
typedef struct ReebNode {
struct ReebNode *next, *prev;
struct ReebArc **arcs;
int index;
int degree;
float weight;
float p[3];
int flags;
} ReebNode;
typedef struct ReebEdge {
struct ReebEdge *next, *prev;
struct ReebArc *arc;
struct ReebNode *v1, *v2;
struct ReebEdge *nextEdge;
} ReebEdge;
typedef struct ReebArc {
struct ReebArc *next, *prev;
ListBase edges;
struct ReebNode *v1, *v2;
struct EmbedBucket *buckets;
int bcount;
int flags;
} ReebArc;
typedef struct ReebArcIterator {
struct ReebArc *arc;
int index;
int start;
int end;
int stride;
} ReebArcIterator;
struct EditMesh;
int weightToHarmonic(struct EditMesh *em);
int weightFromDistance(struct EditMesh *em);
int weightFromLoc(struct EditMesh *me, int axis);
void renormalizeWeight(struct EditMesh *em, float newmax);
ReebGraph * generateReebGraph(struct EditMesh *me, int subdivisions);
void freeGraph(ReebGraph *rg);
void exportGraph(ReebGraph *rg, int count);
#define OTHER_NODE(arc, node) ((arc->v1 == node) ? arc->v2 : arc->v1)
void initArcIterator(struct ReebArcIterator *iter, struct ReebArc *arc, struct ReebNode *head);
void initArcIterator2(struct ReebArcIterator *iter, struct ReebArc *arc, int start, int end);
struct EmbedBucket * nextBucket(struct ReebArcIterator *iter);
/* Filtering */
void filterNullReebGraph(ReebGraph *rg);
void filterExternalReebGraph(ReebGraph *rg, float threshold);
void filterInternalReebGraph(ReebGraph *rg, float threshold);
/* Post-Build processing */
void repositionNodes(ReebGraph *rg);
void postprocessGraph(ReebGraph *rg, char mode);
void removeNormalNodes(ReebGraph *rg);
/* Graph processing */
void buildAdjacencyList(ReebGraph *rg);
void sortNodes(ReebGraph *rg);
void sortArcs(ReebGraph *rg);
int subtreeDepth(ReebNode *node, ReebArc *rootArc);
int countConnectedArcs(ReebGraph *rg, ReebNode *node);
int hasAdjacencyList(ReebGraph *rg);
int isGraphCyclic(ReebGraph *rg);
/* Sanity check */
void verifyBuckets(ReebGraph *rg);
#endif /*REEB_H_*/
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