MeshViz/3Ddata/PbVoxelCell.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/

#ifndef  _PB_VOXELCELL_
#define  _PB_VOXELCELL_

#include <MeshViz/3Ddata/PbCell.h>
#include <MeshViz/3Ddata/PbHexahedronCell.h>

class PbMesh;
class PiMarchingCase;

class  PbVoxelCell : public PbCell {


 public:

  PbVoxelCell(const PbMesh *owner_mesh) ;

  PbVoxelCell(const PbVoxelCell &cell);

  ~PbVoxelCell() ;

  PbVoxelCell& operator=(const PbVoxelCell &cell) ;

  virtual float getLongestEdgeLength() const;

  virtual SbBox3f getBoundingBox() const;

  void getBounds(float &xmin,float &ymin, float &zmin, 
                 float &xmax,float &ymax, float &zmax) const;

  virtual SbVec3f getCenter() const;

  virtual float getVolume() const { return m_dx * m_dy * m_dz;}

  virtual float getArea() const { return 0.0;}

  virtual void getNodesIndexOfEdge (int edge, PbArrayOfInt &nodes_index) const;

  virtual void getNodesIndexOfFacet (int facet, PbArrayOfInt &nodes_index) const;

  virtual void getNodesLocalIndexOfEdge (int edge, PbArrayOfInt &nodes_index) const;

  virtual void getNodesLocalIndexOfFacet (int facet, PbArrayOfInt &nodes_index) const;

  virtual int locatePoint(const SbVec3f &coord, float tolerance, SbVec3f &pcoord) const;

  virtual void getWeight(const SbVec3f &pcoord, float *weight) const;

  virtual float getValue(const SbVec3f &pcoord, const float *s) const;

  virtual SbVec3f getValue(const SbVec3f &pcoord, const SbVec3f *v) const;

  /*----------------------------------------------------------------------------*/
 private:
  SbBool set(int index, int *node_ids, 
             float x_min, float y_min, float z_min, 
             float x_max, float y_max, float z_max);

  virtual const int* getNodesLocalIndexOfEdge(int edge) const {
    return c_edgeNodes[edge];
  }

  void print(FILE *fp) const;
  // Prints a formatted version of the voxel to the given file pointer

  PiMarchingCase* getMCcase(unsigned char mc_case) const {
    return PbHexahedronCell::c_MarchingLookup[mc_case];
  }
  /*----------------------------------------------------------------------------*/

 private:
   virtual unsigned char getIsosurfCaseId(SbBoolVector &nodes_sign) const;

 private:

  void copy(const PbVoxelCell &cell) ;
  void destroy();

  float m_xmin,m_ymin,m_zmin, m_xmax,m_ymax,m_zmax, m_dx,m_dy,m_dz;
  static int             c_edgeNodes[12][2]; 
};

/*---------------------------------------------------------------------------*/

#endif /* _PB_VOXELCELL_ */

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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