basic/geometry/IGS/IGS_Mesh.h

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#ifndef _MESH_H_
#define _MESH_H_

#include "IGS_MeshBase.h"
#include "math/vector4.h"
#include <vector>

class IGS_Mesh;

//=============================================================================
class MeshIndexes
{
public:
        int vertexNum;
};
//=============================================================================
class MeshEdge                  //this is used to store the silhouette edges
{
public:
        int v0;
        int v1;

        MeshEdge();
        bool operator==( const MeshEdge& right ) const;
        void ClearSilhouetteInfo() const;
        bool IsSilhouette() const;
        void MarkFrontFacing() const;
        void MarkBackFacing() const;

protected:
        mutable bool mRenderedForward;
        mutable bool mRenderedReverse;
        mutable int  mTimesRendered;
};
//=============================================================================
class IGS_Mesh : 
        public IGS_MeshBase
{
public:
        IGS_Mesh();

        int AddEdge( const int v0, const int v1 );
        int AddFacet( const MeshFacet& facet );
        void ClearSilhouetteEdges() const;
        void GetBoundingBox( double& xmin, double& xmax, double& ymin, double& ymax, double& zmin, double& zmax ) const;
        virtual void Prepare( const IGS_Controller& controller );
        virtual void Render( const IGS_Controller& controller ) const;

        std::vector< MeshEdge >         edges;          //used only for silhouettes
        std::vector< MeshFacet >        facets;
protected:
        Vector4 ComputeNormalForFacet( const int facetNum ) const;
};
//=============================================================================
#endif

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