vtkVertex.h

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

  vtkCellTypeTraitsMembersMacro(VTK_VERTEX);



  int GetCellType() override { return Traits::CellType; }
  int GetCellDimension() override { return Traits::Dimension; }
  int GetNumberOfEdges() override { return Traits::NumberOfEdges; }
  int GetNumberOfFaces() override { return Traits::NumberOfFaces; }
  vtkCell* GetEdge(int) override { return nullptr; }
  vtkCell* GetFace(int) override { return nullptr; }
  void Clip(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
    vtkCellArray* pts, vtkPointData* inPd, vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId,
    vtkCellData* outCd, vtkTypeBool 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;
  double* GetParametricCoords() override;

  int Inflate(double) override { return 0; }

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

  void Contour(double value, vtkDataArray* cellScalars, vtkIncrementalPointLocator* locator,
    vtkCellArray* verts1, vtkCellArray* lines, vtkCellArray* verts2, vtkPointData* inPd,
    vtkPointData* outPd, vtkCellData* inCd, vtkIdType cellId, vtkCellData* outCd) override;

  int GetParametricCenter(double pcoords[3]) 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;
 
  static void InterpolationFunctions(const double pcoords[3], double weights[1]);
  static void InterpolationDerivs(const double pcoords[3], double derivs[3]);

  void InterpolateFunctions(const double pcoords[3], double weights[1]) override
  {
    vtkVertex::InterpolationFunctions(pcoords, weights);
  }
  void InterpolateDerivs(const double pcoords[3], double derivs[3]) override
  {
    vtkVertex::InterpolationDerivs(pcoords, derivs);
  }

 
protected:
  vtkVertex();
  ~vtkVertex() override = default;
 
private:
  vtkVertex(const vtkVertex&) = delete;
  void operator=(const vtkVertex&) = delete;
};
 
//----------------------------------------------------------------------------
inline int vtkVertex::GetParametricCenter(double pcoords[3])
{
  pcoords[0] = pcoords[1] = pcoords[2] = 0.0;
  return 0;
}
 
VTK_ABI_NAMESPACE_END
#endif