MeshVizXLM/mesh/cell/MiCell.h

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

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

#include <MeshVizXLM/MbVec3.h>
#include <Inventor/STL/vector>
#include <Inventor/STL/ostream>

class MESHVIZXLM_EXTR_API MiCell
{
public:

  virtual ~MiCell() {}

  virtual size_t getNumNodes() const = 0; 

  virtual size_t getNodeIndex(size_t node) const = 0;

  virtual double getRelativeSize(const MiGeometryI* SO_UNUSED_PARAM(meshGeometry)) const 
  {
    return 1;
  }

  virtual void getWeight(const MbVec3d& SO_UNUSED_PARAM(ipcoord), std::vector<double>& SO_UNUSED_PARAM(weight)) const 
  {
    throw MiAbstractMethodError("MiCell::getWeight(const MbVec3d &, std::vector<double>&)");
  }

  virtual MbVec3d getIsoParametricCoord(size_t SO_UNUSED_PARAM(nodeIndex)) const 
  {
    throw MiAbstractMethodError("MiCell::getIsoParametricCoord(size_t nodeIndex)");
  }

  virtual MbVec3d getCenter(const MiGeometryI& geometry) const;


  virtual bool isPointInsideCell(const MiGeometryI& SO_UNUSED_PARAM(meshGeometry), 
                                 const MbVec3d& SO_UNUSED_PARAM(point), 
                                 std::vector<double>& SO_UNUSED_PARAM(weights)) const
  {
    throw MiAbstractMethodError("MiCell::isPointInsideCell(const MbVec3d &point)");
  }

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

private: protected:
  virtual std::ostream& toStream(std::ostream& s) const;

};

//-----------------------------------------------------------------------------
inline MbVec3d
MiCell::getCenter(const MiGeometryI& geometry) const
{
  MbVec3d center(0);
  for (size_t i=0; i<getNumNodes(); ++i) 
    center += geometry.getCoord(getNodeIndex(i));
  return ( center / (double) getNumNodes() );
}

//-----------------------------------------------------------------------------
inline std::ostream& 
MiCell::toStream(std::ostream& s) const
{
  s << "# num cell's nodes" << std::endl;
  s << getNumNodes() << std::endl;
  s << "[";
  for (size_t i=0; i<getNumNodes(); ++i)
    s << getNodeIndex(i) << " ";
  s << "]";

  return s;
}

//-----------------------------------------------------------------------------
inline std::ostream& 
operator << (std::ostream& s, const MiCell& cell)
{
  return cell.toStream(s);
}


#endif 

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Open Inventor Toolkit reference manual, generated on 15 Mar 2023
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