vtkConvexPointSet.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkConvexPointSet.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkConvexPointSet_h
#define vtkConvexPointSet_h

#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkCell3D.h"

class vtkUnstructuredGrid;
class vtkCellArray;
class vtkTriangle;
class vtkTetra;
class vtkDoubleArray;

class VTKCOMMONDATAMODEL_EXPORT vtkConvexPointSet : public vtkCell3D
{
public:
  static vtkConvexPointSet *New();
  vtkTypeMacro(vtkConvexPointSet,vtkCell3D);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  virtual int HasFixedTopology() {return 0;}

  void GetEdgePoints(int vtkNotUsed(edgeId), int* &vtkNotUsed(pts)) override {}
  void GetFacePoints(int vtkNotUsed(faceId), int* &vtkNotUsed(pts)) override {}
  double *GetParametricCoords() override;

  int GetCellType() override {return VTK_CONVEX_POINT_SET;}

  int RequiresInitialization() override {return 1;}
  void Initialize() override;


  int GetNumberOfEdges() override {return 0;}
  vtkCell *GetEdge(int) override {return nullptr;}
  int GetNumberOfFaces() override;
  vtkCell *GetFace(int faceId) override;

  void Contour(double value, vtkDataArray *cellScalars,
               vtkIncrementalPointLocator *locator, vtkCellArray *verts,
               vtkCellArray *lines, vtkCellArray *polys,
               vtkPointData *inPd, vtkPointData *outPd,
               vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd) override;

  void Clip(double value, vtkDataArray *cellScalars,
                    vtkIncrementalPointLocator *locator, vtkCellArray *connectivity,
                    vtkPointData *inPd, vtkPointData *outPd,
                    vtkCellData *inCd, vtkIdType cellId, vtkCellData *outCd,
                    int insideOut) override;

  int EvaluatePosition(const double x[3], double closestPoint[3],
                       int& subId, double pcoords[3],
                       double& dist2, double weights[]) override;

  void EvaluateLocation(int& subId, const double pcoords[3], double x[3],
                        double *weights) override;

  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t,
                        double x[3], double pcoords[3], int& subId) override;

  int Triangulate(int index, vtkIdList *ptIds, vtkPoints *pts) override;

  void Derivatives(int subId, const double pcoords[3], const double *values,
                   int dim, double *derivs) override;

  int CellBoundary(int subId, const double pcoords[3], vtkIdList *pts) override;

  int GetParametricCenter(double pcoords[3]) override;

  int IsPrimaryCell() override {return 0;}


  void InterpolateFunctions(const double pcoords[3], double *sf) override;
  void InterpolateDerivs(const double pcoords[3], double *derivs) override;

protected:
  vtkConvexPointSet();
  ~vtkConvexPointSet() override;

  vtkTetra       *Tetra;
  vtkIdList      *TetraIds;
  vtkPoints      *TetraPoints;
  vtkDoubleArray *TetraScalars;

  vtkCellArray   *BoundaryTris;
  vtkTriangle    *Triangle;
  vtkDoubleArray *ParametricCoords;

private:
  vtkConvexPointSet(const vtkConvexPointSet&) = delete;
  void operator=(const vtkConvexPointSet&) = delete;
};

//----------------------------------------------------------------------------
inline int vtkConvexPointSet::GetParametricCenter(double pcoords[3])
{
  pcoords[0] = pcoords[1] = pcoords[2] = 0.5;
  return 0;
}

#endif