meshinterpoler.h

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#ifndef AIMS_MESH_MESHINTERPOLER_H
#define AIMS_MESH_MESHINTERPOLER_H

#include <aims/mesh/surface.h>
#include <aims/mesh/texture.h>


namespace aims
{

  class MeshInterpoler
  {
  public:
    enum InterpolationType
    {
      Linear,
      NearestNeighbour,
    };

    MeshInterpoler( const AimsSurfaceTriangle & source, const
      AimsSurfaceTriangle & dest );
    MeshInterpoler( const Point3df* sourceVert,
                    const AimsVector<uint,3>* sourcePoly,
                    uint nSourcePolygon, const Point3df* destVertex,
                    const AimsVector<uint,3>* destPolygon, uint nDestVertex,
                    uint nDestPolygon );
    virtual ~MeshInterpoler();

    void setDiscontinuityThresholds( float xthresh, float ythresh,
                                     float zthresh );
    void project();
    AimsSurfaceTriangle *resampleMesh( const AimsSurfaceTriangle & sourceshape
      ) const;
    template <typename T> TimeTexture<T> *
      resampleTexture( const TimeTexture<T> &,
                       InterpolationType = Linear ) const;
    template <typename T> void
      resampleTexture( const Texture<T> & source, Texture<T> & dest,
                       int timestep = 0, InterpolationType = Linear ) const;
    template <typename T> void
      resampleTexture( const T *source, T *dest, int timestep = 0,
                       InterpolationType = Linear ) const;

    const TimeTexture<uint> & projectedTriangles() const;
    const TimeTexture<float> & projectedTriCoord1() const;
    const TimeTexture<float> & projectedTriCoord2() const;
    const TimeTexture<float> & projectedTriCoord3() const;
    void reloadProjectionParams( const TimeTexture<uint> & projTriangles,
      const TimeTexture<float> & projTriCoord1,
      const TimeTexture<float> & projTriCoord2,
      const TimeTexture<float> & projTriCoord3 );
    void setMeshes( const AimsSurfaceTriangle & source, const
      AimsSurfaceTriangle & dest );

  protected:
    MeshInterpoler();
    void findNeighbours();
    void processCoordinates();
    void findNeighbours_timestep( const Point3df *sourceVert,
      const AimsVector<uint,3>* sourcePoly, uint nSourcePolygon,
      const Point3df* destVertex, uint nDestVertex, int timestep );
    void processCoordinates_timestep( const Point3df *sourceVert,
      const AimsVector<uint,3> *sourcePoly, const Point3df *destVertex,
      uint nDestVertex, int timestep );
  private:
    struct Private;
    Private *d;
  };


  class CoordinatesFieldMeshInterpoler : public MeshInterpoler
  {
  public:
    CoordinatesFieldMeshInterpoler( const AimsSurfaceTriangle & source,
                                    const AimsSurfaceTriangle & dest,
                                    const TimeTexture<float> & srccoord1,
                                    const TimeTexture<float> & srccoord2,
                                    const TimeTexture<float> & dstcoord1,
                                    const TimeTexture<float> & dstcoord2 );
    virtual ~CoordinatesFieldMeshInterpoler();

  private:
    struct Private;
    Private *d2;
  };

}

#endif