vtkLagrangeTriangle.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkLagrangeTriangle_h
#define vtkLagrangeTriangle_h
 
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkHigherOrderTriangle.h"
 
#include <vector> // For caching
 
VTK_ABI_NAMESPACE_BEGIN
class vtkDoubleArray;
class vtkLagrangeCurve;
class vtkTriangle;
 
class VTKCOMMONDATAMODEL_EXPORT vtkLagrangeTriangle : public vtkHigherOrderTriangle
{
public:
  static vtkLagrangeTriangle* New();
  vtkTypeMacro(vtkLagrangeTriangle, vtkHigherOrderTriangle);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  int GetCellType() override { return VTK_LAGRANGE_TRIANGLE; }
 
  vtkCell* GetEdge(int edgeId) override;
  void InterpolateFunctions(const double pcoords[3], double* weights) override;
  void InterpolateDerivs(const double pcoords[3], double* derivs) override;
 
  vtkHigherOrderCurve* GetEdgeCell() override;
 
protected:
  vtkLagrangeTriangle();
  ~vtkLagrangeTriangle() override;
 
  vtkIdType GetNumberOfSubtriangles() const { return this->NumberOfSubtriangles; }
  vtkIdType ComputeNumberOfSubtriangles();
  vtkNew<vtkLagrangeCurve> EdgeCell;
 
private:
  vtkLagrangeTriangle(const vtkLagrangeTriangle&) = delete;
  void operator=(const vtkLagrangeTriangle&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif