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itkFEMElement2DC0LinearQuadrilateral.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkFEMElement2DC0LinearQuadrilateral.h,v $
00005   Language:  C++
00006   Date:      $Date: 2003-09-10 14:29:39 $
00007   Version:   $Revision: 1.22 $
00008 
00009   Copyright (c) Insight Software Consortium. All rights reserved.
00010   See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
00011 
00012      This software is distributed WITHOUT ANY WARRANTY; without even 
00013      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00014      PURPOSE.  See the above copyright notices for more information.
00015 
00016 =========================================================================*/
00017 
00018 #ifndef __itkFEMElement2DC0LinearQuadrilateral_h
00019 #define __itkFEMElement2DC0LinearQuadrilateral_h
00020 
00021 #include "itkFEMElementStd.h"
00022 
00023 namespace itk {
00024 namespace fem {
00025 
00026 
00027 
00028 
00033 class Element2DC0LinearQuadrilateral : public ElementStd<4,2>
00034 {
00035 typedef ElementStd<4,2> TemplatedParentClass;
00036 FEM_ABSTRACT_CLASS( Element2DC0LinearQuadrilateral, TemplatedParentClass )
00037 public:
00038 
00039 
00040 
00041 
00043   /*
00044    * Methods related to numeric integration
00045    */
00046 
00047   enum { DefaultIntegrationOrder = 2 };
00048 
00049   virtual void GetIntegrationPointAndWeight(unsigned int i, VectorType& pt, Float& w, unsigned int order) const;
00050 
00051   virtual unsigned int GetNumberOfIntegrationPoints(unsigned int order) const;
00052 
00053 
00054 
00056   /*
00057    * Methods related to the geometry of an element
00058    */
00059 
00060   virtual VectorType ShapeFunctions( const VectorType& pt ) const;
00061 
00062   virtual void ShapeFunctionDerivatives( const VectorType& pt, MatrixType& shapeD ) const;
00063 
00064   virtual bool GetLocalFromGlobalCoordinates( const VectorType& globalPt, VectorType& localPt) const;
00065 
00069 #ifdef FEM_BUILD_VISUALIZATION
00070   void Draw(CDC* pDC, Solution::ConstPointer sol) const;
00071 #endif
00072 
00073 };
00074 
00075 
00076 
00077 
00078 }} // end namespace itk::fem
00079 
00080 #endif  // #ifndef __itkFEMElement2DC0LinearQuadrilateral_h
00081 

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