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LOD_MeshPrimitives.h

/**
 * $Id: LOD_MeshPrimitives.h,v 1.4 2002/12/26 18:25:08 mein Exp $
 * ***** BEGIN GPL/BL DUAL 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) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL/BL DUAL LICENSE BLOCK *****
 */

#ifndef NAN_INCLUDED_MeshPrimitives_h
#define NAN_INCLUDED_MeshPrimitives_h

#include "MT_Vector3.h"
#include "CTR_TaggedIndex.h"
#include "CTR_UHeap.h"
#include <vector>

typedef CTR_TaggedIndex<24,0x00ffffff> LOD_VertexInd;
typedef CTR_TaggedIndex<24,0x00ffffff> LOD_EdgeInd;
typedef CTR_TaggedIndex<24,0x00ffffff> LOD_FaceInd;
typedef CTR_TaggedIndex<24,0x00ffffff> LOD_HeapInd;

class LOD_Vertex {
public :
      MT_Vector3 pos;
      std::vector<LOD_EdgeInd> m_edges;
      bool m_select_tag;

      LOD_Vertex(
      ) ;

            bool
      RemoveEdge(
            LOD_EdgeInd e
      );    

            void
      AddEdge(
            LOD_EdgeInd e
      );

            void
      SwapEdge(
            LOD_EdgeInd e_old,
            LOD_EdgeInd e_new
      );

            bool
      SelectTag(
      ) const; 

            void
      SetSelectTag(
            bool tag    
      );

            bool
      Degenerate(
      );

            void
      CopyPosition(
            float *float_ptr
      );

private :


};

class LOD_Edge : public CTR_UHeapable  {
public :
      LOD_VertexInd     m_verts[2];
      LOD_FaceInd       m_faces[2];

      LOD_Edge (
      );
                  
      bool operator == (
            LOD_Edge & rhs
      );

      // Elementary helper methods
      ////////////////////////////

            LOD_FaceInd
      OpFace(
            LOD_FaceInd f
      ) const ;

            void
      SwapFace(
            LOD_FaceInd old_f,
            LOD_FaceInd new_f
      ) ;


      // return the half edge face - the half edge is defined
      // by the {vertex,edge} tuple. 

            LOD_FaceInd
      HalfEdgeFace(
            LOD_VertexInd vi
      );    
      

            LOD_VertexInd
      OpVertex(
            LOD_VertexInd vi
      );

      // replace the vertex v_old with vertex v_new
      // error if v_old is not one of the original vertices

            void
      SwapVertex(
            LOD_VertexInd v_old,
            LOD_VertexInd v_new
      ) ;               

            bool
      SelectTag(
      ) const ;

            void
      SetSelectTag(
            bool tag
      );
      
            int
      OpenTag(
      ) const;

            void
      SetOpenTag(
            int tag
      ) ;

            bool
      Degenerate(
      ) const;

            bool
      BoundaryEdge(
      ) const {
            return (m_faces[0].IsEmpty() || m_faces[1].IsEmpty());
      };
      

};

class LOD_TriFace {
public:

      LOD_VertexInd m_verts[3];

      LOD_TriFace(
      );

      // Elementary helper methods
      ////////////////////////////

            void
      SwapVertex(
            LOD_VertexInd old_v,
            LOD_VertexInd new_v
      );

            bool
      SelectTag(
      ) const;

            void
      SetSelectTag(
            bool tag
      );

            int
      OpenTag(
      );
            void
      SetOpenTag(
            int tag
      );

            bool
      Degenerate(
      );

            void
      CopyVerts(
            int * index_ptr
      );

};
      
#endif


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