vtkQuadraticHexahedron.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkQuadraticHexahedron_h
#define vtkQuadraticHexahedron_h
 
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkNonLinearCell.h"
 
VTK_ABI_NAMESPACE_BEGIN
class vtkQuadraticEdge;
class vtkQuadraticQuad;
class vtkHexahedron;
class vtkDoubleArray;
 
class VTKCOMMONDATAMODEL_EXPORT vtkQuadraticHexahedron : public vtkNonLinearCell
{
public:
  static vtkQuadraticHexahedron* New();
  vtkTypeMacro(vtkQuadraticHexahedron, vtkNonLinearCell);
  void PrintSelf(ostream& os, vtkIndent indent) override;


  int GetCellType() override { return VTK_QUADRATIC_HEXAHEDRON; }
  int GetCellDimension() override { return 3; }
  int GetNumberOfEdges() override { return 12; }
  int GetNumberOfFaces() override { return 6; }
  vtkCell* GetEdge(int) override;
  vtkCell* GetFace(int) override;
 
  int CellBoundary(int subId, const double pcoords[3], vtkIdList* pts) 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;
  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 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;

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

  int IntersectWithLine(const double p1[3], const double p2[3], double tol, double& t, double x[3],
    double pcoords[3], int& subId) override;
 
  static void InterpolationFunctions(const double pcoords[3], double weights[20]);
  static void InterpolationDerivs(const double pcoords[3], double derivs[60]);

  void InterpolateFunctions(const double pcoords[3], double weights[20]) override
  {
    vtkQuadraticHexahedron::InterpolationFunctions(pcoords, weights);
  }
  void InterpolateDerivs(const double pcoords[3], double derivs[60]) override
  {
    vtkQuadraticHexahedron::InterpolationDerivs(pcoords, derivs);
  }


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

  void JacobianInverse(const double pcoords[3], double** inverse, double derivs[60]);
 
protected:
  vtkQuadraticHexahedron();
  ~vtkQuadraticHexahedron() override;
 
  vtkQuadraticEdge* Edge;
  vtkQuadraticQuad* Face;
  vtkHexahedron* Hex;
  vtkPointData* PointData;
  vtkCellData* CellData;
  vtkDoubleArray* CellScalars;
  vtkDoubleArray* Scalars;
 
  void Subdivide(
    vtkPointData* inPd, vtkCellData* inCd, vtkIdType cellId, vtkDataArray* cellScalars);
 
private:
  vtkQuadraticHexahedron(const vtkQuadraticHexahedron&) = delete;
  void operator=(const vtkQuadraticHexahedron&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif