vtkLagrangeTriangle.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkLagrangeTriangle.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 vtkLagrangeTriangle_h
#define vtkLagrangeTriangle_h
 
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkHigherOrderTriangle.h"
 
#include <vector> // For caching
 
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;
};
 
#endif