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/*=========================================================================
Program: Visualization Toolkit
Module: vtkLagrangeTetra.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.
=========================================================================*/
/**
* @class vtkLagrangeTetra
* @brief A 3D cell that represents an arbitrary order Lagrange tetrahedron
*
* vtkLagrangeTetra is a concrete implementation of vtkCell to represent a
* 3D tetrahedron using Lagrange shape functions of user specified order.
*
* The number of points in a Lagrange cell determines the order over which they
* are iterated relative to the parametric coordinate system of the cell. The
* first points that are reported are vertices. They appear in the same order in
* which they would appear in linear cells. Mid-edge points are reported next.
* They are reported in sequence. For two- and three-dimensional (3D) cells, the
* following set of points to be reported are face points. Finally, 3D cells
* report points interior to their volume.
*/
#ifndef vtkLagrangeTetra_h
#define vtkLagrangeTetra_h
#include "vtkCommonDataModelModule.h" // For export macro
#include "vtkHigherOrderTetra.h"
#include <vector> // For caching
class vtkTetra;
class vtkLagrangeCurve;
class vtkLagrangeTriangle;
class vtkDoubleArray;
class VTKCOMMONDATAMODEL_EXPORT vtkLagrangeTetra : public vtkHigherOrderTetra
{
public:
static vtkLagrangeTetra* New();
vtkTypeMacro(vtkLagrangeTetra, vtkHigherOrderTetra);
void PrintSelf(ostream& os, vtkIndent indent) override;
int GetCellType() override { return VTK_LAGRANGE_TETRAHEDRON; }
vtkCell* GetEdge(int edgeId) override;
vtkCell* GetFace(int faceId) override;
void InterpolateFunctions(const double pcoords[3], double* weights) override;
void InterpolateDerivs(const double pcoords[3], double* derivs) override;
virtual vtkHigherOrderCurve* getEdgeCell() override;
virtual vtkHigherOrderTriangle* getFaceCell() override;
protected:
vtkLagrangeTetra();
~vtkLagrangeTetra() override;
vtkNew<vtkLagrangeCurve> EdgeCell;
vtkNew<vtkLagrangeTriangle> FaceCell;
private:
vtkLagrangeTetra(const vtkLagrangeTetra&) = delete;
void operator=(const vtkLagrangeTetra&) = delete;
};
#endif
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