MeshVizXLM/extractors/MxPolygonCellExtract.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/
#ifndef  _MxPolygonCellExtract_h
#define  _MxPolygonCellExtract_h

#include <MeshVizXLM/mesh/geometry/MiGeometryI.h>

#include <Inventor/STL/vector>
#include <Inventor/STL/utility>

class MiSurfaceCell;

class MESHVIZXLM_EXTR_API MxPolygonCellExtract 
{
public:

  static void getWeight(const MiGeometryI& meshGeometry, const MiSurfaceCell* polygonCell, const MbVec3d &point, std::vector<double>& weights);

  static double getLongestEdgeLength(const MiGeometryI& meshGeometry, const MiSurfaceCell* polygonCell);

  static double getShortestEdgeLength(const MiGeometryI& meshGeometry, const MiSurfaceCell* polygonCell);

  static bool isPointInsideCell(const MiGeometryI& meshGeometry, const MiSurfaceCell* polygonCell, const MbVec3d &point, std::vector<double>& weights);

  static double getArea(const MiGeometryI& meshGeometry, const MiSurfaceCell* polygonCell);

  static MbVec3d getNormal(const MiGeometryI& meshGeometry, const MiSurfaceCell *polygonCell);

private:

  static bool initClass();
  static void exitClass();
  static double cot(const MbVec3d& v1, const MbVec3d& v2, const MbVec3d& normal);

  static bool   s_isInit;

};

#endif 

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