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FEM
include
itkFEMElement2DC0LinearTriangular.h
Go to the documentation of this file.
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/*=========================================================================
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*
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* Copyright Insight Software Consortium
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0.txt
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*=========================================================================*/
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#ifndef __itkFEMElement2DC0LinearTriangular_h
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#define __itkFEMElement2DC0LinearTriangular_h
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#include "
itkFEMElementStd.h
"
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namespace
itk
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{
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namespace
fem
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{
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class
Element2DC0LinearTriangular
:
public
ElementStd
<3, 2>
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{
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public
:
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typedef
Element2DC0LinearTriangular
Self
;
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typedef
ElementStd<3, 2>
TemplatedParentClass
;
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typedef
TemplatedParentClass
Superclass
;
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typedef
SmartPointer<Self>
Pointer
;
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typedef
SmartPointer<const Self>
ConstPointer
;
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itkTypeMacro(
Element2DC0LinearTriangular
,
TemplatedParentClass
);
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// ////////////////////////////////////////////////////////////////////////
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enum
{
DefaultIntegrationOrder
= 1 };
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virtual
void
GetIntegrationPointAndWeight
(
unsigned
int
i,
VectorType
& pt,
Float
& w,
unsigned
int
order)
const
;
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virtual
unsigned
int
GetNumberOfIntegrationPoints
(
unsigned
int
order)
const
;
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// ////////////////////////////////////////////////////////////////////////
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virtual
VectorType
ShapeFunctions
(
const
VectorType
& pt)
const
;
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virtual
void
ShapeFunctionDerivatives
(
const
VectorType
& pt,
MatrixType
& shapeD)
const
;
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virtual
bool
GetLocalFromGlobalCoordinates
(
const
VectorType
& globalPt,
VectorType
& localPt)
const
;
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// Since the Jacobian is not quadratic, we need to provide our
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// own implementation of calculating the determinant and inverse.
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virtual
Float
JacobianDeterminant
(
const
VectorType
& pt,
const
MatrixType
*pJ = 0)
const
;
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virtual
void
JacobianInverse
(
const
VectorType
& pt,
MatrixType
& invJ,
const
MatrixType
*pJ = 0)
const
;
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static
const
Float
trigGaussRuleInfo
[6][7][4];
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static
const
unsigned
int
Nip
[6];
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protected
:
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virtual
void
PopulateEdgeIds
(
void
);
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virtual
void
PrintSelf
(std::ostream& os,
Indent
indent)
const
;
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};
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}
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}
// end namespace itk::fem
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#endif // #ifndef __itkFEMElement2DC0LinearTriangular_h
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