MeshVizXLM/extractors/MxWedge18CellExtract.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/
#ifndef  _MxWedge18CellExtract_h
#define  _MxWedge18CellExtract_h

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

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

class MiVolumeCell;

class MESHVIZXLM_EXTR_API MxWedge18CellExtract 
{
public:

  static MbVec3d getIsoParametricCoord(const MiGeometryI& meshGeometry, const MiVolumeCell* wedgeCell, const MbVec3d &point);
  
  static MbVec3d getIsoParametricCoord(size_t nodeIndex);

  static void getWeight(const MiGeometryI& meshGeometry, const MiVolumeCell* wedgeCell, const MbVec3d &point, std::vector<double>& weights)
  {
    MbVec3d ipcoord = getIsoParametricCoord(meshGeometry,wedgeCell,point);
    getWeight(ipcoord,weights);
  }

  static void getWeight(const MbVec3d &ipcoord, std::vector<double>& weights);

  static void getDerivs(const MbVec3d &ipcoord, std::vector<double>& derivs);

  static bool isPointInsideCell(const MiGeometryI& meshGeometry, const MiVolumeCell* wedgeCell, const MbVec3d &point, std::vector<double>& weights)
  {
    MbVec3d pcoord = getIsoParametricCoord(meshGeometry,wedgeCell,point);
    bool inside =  ( -1.E-5 < pcoord[0] &&  pcoord[0] < 1 + 1.E-5 &&
      -1.E-5 < pcoord[1] &&  pcoord[1] < 1 + 1.E-5 &&
      -1.E-5 < pcoord[2] &&  pcoord[2] < 1 + 1.E-5 &&
      -1.E-5 < (pcoord[0]+pcoord[1]) &&  (pcoord[0]+pcoord[1]) < 1 + 1.E-5);
    if (inside)
      getWeight(pcoord,weights);
    return inside;
  }

  static size_t getNodesIndexOfFacet (size_t facet, std::vector<size_t>& facetNodes)
  {
    facetNodes.assign(s_linearNodesPerFacet[facet],s_linearNodesPerFacet[facet]+s_numLinearNodesPerFacet[facet]);
    return s_numLinearNodesPerFacet[facet];
  }

  static size_t getSubTriangleNodesIndex(size_t face, std::vector<size_t>& triangleNodeIds)  
  {
    triangleNodeIds.assign(s_subTrianglePerFacet[face],s_subTrianglePerFacet[face]+(3*s_numSubTrianglePerFacet[face]));
    return s_numSubTrianglePerFacet[face];
  }

  static size_t getSubTetrahedronNodesIndex (std::vector<size_t>& tetrahedronNodeIds)
  {
    tetrahedronNodeIds.assign(s_subTetrahedronNodeIds,s_subTetrahedronNodeIds+(24*4));
    return 24;
  }


private:
  static void get18Derivs(double r, double s, double t, size_t numNodes, std::vector<double>& derivs);

  friend std::ostream& operator << (std::ostream& s, const MxWedge18CellExtract& cell);
private:

  static bool initClass();
  static void exitClass();

  static void computeSubTetrahedronNodesIndex();
  static void addSubWedge(size_t n0,size_t n1,size_t n2, size_t n3,size_t n4,size_t n5, size_t orient, std::vector<size_t>& wedgeNodeIds);

  template <typename _F>
  static void addSymetricWedgesByPlane(_F& symetricByPlane, std::vector<size_t>& wedgeNodeIds);
  static void decomposeWedge(size_t orient, size_t n0,size_t n1,size_t n2, size_t n3,size_t n4,size_t n5, std::vector<size_t>& tetraNodeIds);

  static void computeSubTriangleNodesIndex();
  template <typename _F>
  static std::vector<size_t> getSymetricTriangles(_F& symetricFunctor, const std::vector<size_t>& triangleNodeIds);
  template <typename _F>
  static std::vector<size_t> getRotateTriangles(_F& rotateFunctor, const std::vector<size_t>& triangleNodeIds);
  static void addTriangle(size_t n0, size_t n1, size_t n2, std::vector<size_t>& triangleNodeIds);

  static bool            s_isInit;

  static double s_nodesIsoParametricCoords[18][3];

  static size_t s_linearNodesPerFacet[5][4];
  static size_t s_numLinearNodesPerFacet[5];

  static size_t s_numSubTrianglePerFacet[5];
  static size_t s_subTrianglePerFacet[5][24]; 

  static size_t s_subTetrahedronNodeIds[24*4]; 

  static int s_imat0[36];
  static int s_imat1[24];
  static int s_imat2[24];
  static int s_imat3[18];
  static int s_iperm[24];
};

#endif 

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Open Inventor Toolkit reference manual, generated on 15 Mar 2023
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