source: GTP/trunk/Lib/Geom/shared/GTGeometry/src/libs/vmi/include/simplify.h @ 2090

#ifndef __simplify_h_
#define __simplify_h_

#include "GL/glut.h"

#include "change.h"
#include "bheap.h"

#include        <map>

using   namespace       std;

namespace       VMI
{
        extern GLdouble computeEdgeCost(Mesh *mesh, int e);

        extern bheap_t *initHeap(Mesh *mesh);

        extern bheap_t *updateHeap(bheap_t *h, Mesh *mesh, Change *c);

        extern void simplifyModel(Mesh *mesh, GLuint numDemandedTri);


        extern void bh_mydump(Mesh *mesh, bheap_t *h);
        extern GLdouble computeEdgeLength(Vertex *vertices, int u, int v);

        extern void chooseBestEndPoints(Mesh *mesh, int e);

        extern void     initVertexMultimap(     Mesh *mesh,
                                                                                                                                        multimap<int,int> &vertexMultimap);
        /////////////////////////////////////////////////////////////////////////////
        //      Coordinates class.
        /////////////////////////////////////////////////////////////////////////////
        class _float3_
        {
                public:

                        float x,y,z;

                        _float3_(float x=0.0f, float y=0.0f, float z=0.0f)
                        {
                                this->x = x; this->y = y; this->z = z;
                        }

                        _float3_(const _float3_ &f)
                        {
                                x=f.x; y=f.y; z=f.z;
                        }

                        _float3_ & operator=(const _float3_ &f)
                        {
                                x=f.x; y=f.y; z=f.z; return *this;
                        }

                        bool operator<(const _float3_ &f) const
                        {
                                if (x<f.x) return true;
                                if (x>f.x) return false;
                                if (y<f.y) return true;
                                if (y>f.y) return false;
                                if (z<f.z) return true;
                                if (z>f.z) return false;
                                return false;
                        }
        };

        extern int extractValidEdge(Mesh *mesh, bheap_t *h);

        extern int      isValidEdge(Mesh        *mesh,  int edge);

        void    deleteVertexOfMap(Mesh  *mesh, int u);
        bool    compareVertices(Vertex *vertices,int    u,      int v);
        void    contractInitialMesh(Mesh        *mesh);
        void    contractTwinVertices(Mesh       *mesh,  int     u,      int     v);

        //      Vectors of positions, normals and texture coordinates.
        extern  vector<Geometry::Vector3>       vPositions;
        extern  vector<Geometry::Vector3>       vNormals;
        extern  vector<Geometry::Vector2>       vTexCoords;
}

#endif