vtkHexagonalPrism.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkHexagonalPrism_h
#define vtkHexagonalPrism_h
 
#include "vtkCell3D.h"
#include "vtkCommonDataModelModule.h" // For export macro
 
VTK_ABI_NAMESPACE_BEGIN
class vtkLine;
class vtkPolygon;
class vtkQuad;
 
class VTKCOMMONDATAMODEL_EXPORT vtkHexagonalPrism : public vtkCell3D
{
public:
  static vtkHexagonalPrism* New();
  vtkTypeMacro(vtkHexagonalPrism, vtkCell3D);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  void GetEdgePoints(vtkIdType edgeId, const vtkIdType*& pts) override;
  vtkIdType GetFacePoints(vtkIdType faceId, const vtkIdType*& pts) override;
  void GetEdgeToAdjacentFaces(vtkIdType edgeId, const vtkIdType*& pts) override;
  vtkIdType GetFaceToAdjacentFaces(vtkIdType faceId, const vtkIdType*& faceIds) override;
  vtkIdType GetPointToIncidentEdges(vtkIdType pointId, const vtkIdType*& edgeIds) override;
  vtkIdType GetPointToIncidentFaces(vtkIdType pointId, const vtkIdType*& faceIds) override;
  vtkIdType GetPointToOneRingPoints(vtkIdType pointId, const vtkIdType*& pts) override;
  bool GetCentroid(double centroid[3]) const override;
  bool IsInsideOut() override;

  static constexpr vtkIdType NumberOfPoints = 12;

  static constexpr vtkIdType NumberOfEdges = 18;

  static constexpr vtkIdType NumberOfFaces = 8;

  static constexpr vtkIdType MaximumFaceSize = 6;

   * to this vertex. It is also equal to the size of a one ring neighborhood of a vertex.
   */
  static constexpr vtkIdType MaximumValence = 3;


  ///@{

  int GetCellType() override { return VTK_HEXAGONAL_PRISM; }
  int GetCellDimension() override { return 3; }
  int GetNumberOfEdges() override { return 18; }
  int GetNumberOfFaces() override { return 8; }
  vtkCell* GetEdge(int edgeId) override;
  vtkCell* GetFace(int faceId) override;
  int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) 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 TriangulateLocalIds(int index, vtkIdList* ptIds) override;
  void Derivatives(
    int subId, const double pcoords[3], const double* values, int dim, double* derivs) override;
  double* GetParametricCoords() override;

  int GetParametricCenter(double pcoords[3]) override;
 
  static void InterpolationFunctions(const double pcoords[3], double weights[12]);
  static void InterpolationDerivs(const double pcoords[3], double derivs[36]);

  void InterpolateFunctions(const double pcoords[3], double weights[12]) override
  {
    vtkHexagonalPrism::InterpolationFunctions(pcoords, weights);
  }
  void InterpolateDerivs(const double pcoords[3], double derivs[36]) override
  {
    vtkHexagonalPrism::InterpolationDerivs(pcoords, derivs);
  }



  static const vtkIdType* GetEdgeArray(vtkIdType edgeId);
  static const vtkIdType* GetFaceArray(vtkIdType faceId);

  static const vtkIdType* GetEdgeToAdjacentFacesArray(vtkIdType edgeId) VTK_SIZEHINT(2);

  static const vtkIdType* GetFaceToAdjacentFacesArray(vtkIdType faceId) VTK_SIZEHINT(6);

  static const vtkIdType* GetPointToIncidentEdgesArray(vtkIdType pointId) VTK_SIZEHINT(3);

  static const vtkIdType* GetPointToIncidentFacesArray(vtkIdType pointId) VTK_SIZEHINT(3);

  static const vtkIdType* GetPointToOneRingPointsArray(vtkIdType pointId) VTK_SIZEHINT(3);

  static bool ComputeCentroid(vtkPoints* points, const vtkIdType* pointIds, double centroid[3]);

  void JacobianInverse(const double pcoords[3], double** inverse, double derivs[36]);
 
protected:
  vtkHexagonalPrism();
  ~vtkHexagonalPrism() override;
 
  vtkLine* Line;
  vtkQuad* Quad;
  vtkPolygon* Polygon;
 
private:
  vtkHexagonalPrism(const vtkHexagonalPrism&) = delete;
  void operator=(const vtkHexagonalPrism&) = delete;
};
 
//----------------------------------------------------------------------------
inline int vtkHexagonalPrism::GetParametricCenter(double pcoords[3])
{
  pcoords[0] = pcoords[1] = 0.5;
  pcoords[2] = 0.5;
  return 0;
}
VTK_ABI_NAMESPACE_END
#endif