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csgeom/trimeshlod.h

00001 /*
00002     Copyright (C) 1998,2001 by Jorrit Tyberghein
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_TRIMESHLOD_H__
00020 #define __CS_TRIMESHLOD_H__
00021 
00022 #include "csextern.h"
00023 
00024 #include "csgeom/math3d.h"
00025 #include "csgeom/trimesh.h"
00026 
00027 class csTriangleVerticesCost;
00028 
00034 class CS_CSGEOM_EXPORT csTriangleVertexCost : public csTriangleVertex
00035 {
00036 public:
00038   bool deleted;
00039 
00041   float cost;
00043   int to_vertex;
00044 
00046   csTriangleVertexCost () : deleted (false) { }
00048   ~csTriangleVertexCost () { }
00050   bool DelVertex (int idx);
00052   void ReplaceVertex (int old, int replace);
00053 
00058   void CalculateCost (csTriangleVerticesCost* vertices);
00059 };
00060 
00067 class CS_CSGEOM_EXPORT csTriangleVerticesCost
00068 {
00069 private:
00070   csTriangleVertexCost* vertices;
00071   int num_vertices;
00072 
00073 public:
00075   csTriangleVerticesCost (csTriangleMesh* mesh, csVector3* verts,
00076         int num_verts);
00078   ~csTriangleVerticesCost ();
00083   void UpdateVertices (csVector3* verts);
00084 
00086   int GetVertexCount () { return num_vertices; }
00088   csTriangleVertexCost& GetVertex (int idx) { return vertices[idx]; }
00089 
00091   void CalculateCost ();
00092 
00094   int GetMinimalCostVertex ();
00095 
00097   void Dump ();
00098 };
00099 
00104 class CS_CSGEOM_EXPORT csTriangleMeshLOD
00105 {
00106 public:
00122   static void CalculateLOD (csTriangleMesh* mesh, csTriangleVerticesCost* verts,
00123         int* translate, int* emerge_from);
00124 };
00125 
00126 
00127 #endif // __CS_TRIMESHLOD_H__
00128 

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