PbQuadrangleCell.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/
 
 
#ifndef  _PB_QUADRANGLECELL_
#define  _PB_QUADRANGLECELL_
 
#include <MeshViz/3Ddata/PbCell.h>
 
class PbMesh;
 
class  PbQuadrangleCell : public PbCell {
 
 
 public:
 
  PbQuadrangleCell(const PbMesh *owner_mesh) ;
 
  PbQuadrangleCell(const PbQuadrangleCell &cell);
 
  ~PbQuadrangleCell() ;
 
  PbQuadrangleCell& operator=(const PbQuadrangleCell &cell) ;
 
  virtual float getLongestEdgeLength() const;
 
  virtual float getVolume() const { return 0.0; }
 
  virtual float getArea() const;
 
  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;
 
  void getDerivs(const SbVec3f &pcoord, float *derivs) const;
 
  /*----------------------------------------------------------------------------*/
 private:
  SbBool set(int index, int *node_ids, const float *x, const float *y);
 
  SbBool set(int index, int *node_ids, const float *x, const float *y, const float *z);
 
  SbBool set(int index, int *node_ids, float x_min, float y_min, float x_max, float y_max, const float *z);
 
  virtual const int* getNodesLocalIndexOfEdge(int edge) const {
    return c_edgeNodes[edge];
  }
 
  // Prints a formatted version of the quadrangle to the given file pointer
  void print(FILE *fp) const;
 
  /*----------------------------------------------------------------------------*/
 
 private:
   virtual unsigned char getIsosurfCaseId(SbBoolVector &nodes_sign) const;
 
 private:
 
  void copy(const PbQuadrangleCell &cell) ;
  void destroy();
  int locatePointOnXY(const SbVec3f &coord, const SbVec3f &proj_coord, float tolerance, SbVec3f &pcoord, int indx, int indy) const;
  SbVec3f    m_normal;
  SbBool     m_2DCell;
  static int             c_edgeNodes[4][2]; 
};
 
 
inline unsigned char
PbQuadrangleCell::getIsosurfCaseId(SbBoolVector &) const
{
  return 0; 
}
 
/*---------------------------------------------------------------------------*/
 
#endif /* _PB_QUADRANGLECELL_ */