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/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef itkFEMElement3DC0LinearTriangularLaplaceBeltrami_h
#define itkFEMElement3DC0LinearTriangularLaplaceBeltrami_h
#include "itkFEMElement3DC0LinearTriangular.h"
#include "itkFEMElement3DMembrane.h"
#include "itkFEMElement3DMembrane1DOF.h"
#include "ITKFEMExport.h"
namespace itk
{
namespace fem
{
/**
* \class Element3DC0LinearTriangularLaplaceBeltrami
* \brief 3-noded finite element class in 3D space for surface LaplaceBeltrami problem.
*
* * This class combines the geometry of the FE problem defined in
* \link Element3DC0LinearTriangular\endlink
* and the physics of the problem defined in
* \link Element3DMembrane1DOF\endlink
*
* \ingroup ITKFEM
*/
class ITKFEM_EXPORT Element3DC0LinearTriangularLaplaceBeltrami
: public Element3DMembrane1DOF<Element3DC0LinearTriangular>
{
public:
/** Standard class type aliases. */
using Self = Element3DC0LinearTriangularLaplaceBeltrami;
using Superclass = Element3DMembrane1DOF<Element3DC0LinearTriangular>;
using Pointer = SmartPointer<Self>;
using ConstPointer = SmartPointer<const Self>;
/** Method for creation through the object factory. */
itkSimpleNewMacro(Self);
/** \see LightObject::GetNameOfClass() */
itkOverrideGetNameOfClassMacro(Element3DC0LinearTriangularLaplaceBeltrami);
/** CreateAnother method will clone the existing instance of this type,
* including its internal member variables. */
itk::LightObject::Pointer
CreateAnother() const override;
/**
* Default constructor only clears the internal storage
*/
Element3DC0LinearTriangularLaplaceBeltrami();
/**
* Construct an element by specifying pointers to
* 3 points and a material.
*/
Element3DC0LinearTriangularLaplaceBeltrami(NodeIDType n1_, NodeIDType n2_, NodeIDType n3_, Material::ConstPointer p_);
/** Get the degrees of freedom for each node */
unsigned int
GetNumberOfDegreesOfFreedomPerNode() const override
{
return 1;
}
/** Get the Stiffness matrix */
void
GetStiffnessMatrix(MatrixType & Ke) const override;
protected:
void
PrintSelf(std::ostream & os, Indent indent) const override;
}; // class Element3DC0LinearTriangularLaplaceBeltrami
} // end namespace fem
} // end namespace itk
#endif // itkFEMElement3DC0LinearTriangularLaplaceBeltrami_h
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