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itkFEMLoadImplementationGenericBodyLoad.h

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00001 /*=========================================================================
00002 
00003   Program:   Insight Segmentation & Registration Toolkit
00004   Module:    $RCSfile: itkFEMLoadImplementationGenericBodyLoad.h,v $
00005   Language:  C++
00006   Date:      $Date: 2002/09/11 19:57:14 $
00007   Version:   $Revision: 1.5 $
00008 
00009   Copyright (c) 2002 Insight 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 __itkFEMLoadImplementationGenericBodyLoad_h
00019 #define __itkFEMLoadImplementationGenericBodyLoad_h
00020 
00021 #include "itkFEMElementBase.h"
00022 #include "itkFEMLoadGrav.h"
00023 
00024 namespace itk {
00025 namespace fem {
00026 
00027 
00028 
00047 class LoadImplementationGenericBodyLoad
00048 {
00049 public:
00057   template<class TElementClassConstPointer>
00058   static void HandleLoad(TElementClassConstPointer e, Element::LoadPointer l, Element::VectorType& Fe)
00059   {
00060     // Check if we really got a LoadGrav object
00061     LoadGrav::Pointer l0=dynamic_cast<LoadGrav*>(&*l);
00062     if ( !l0 )
00063     {
00064       // Passed load object was not of class LoadGrav!
00065       throw FEMException(__FILE__, __LINE__, "FEM error");
00066     }
00067 
00068     // Statically cast the passed pointer to the element base class and
00069     // call the real load implementation with the correct pointer types.
00070     // If cast fails, the passed pointer was of incompatible class.
00071     Implementation(static_cast<Element::ConstPointer>(e),l0,Fe);
00072   }
00073 
00074 private:
00083   static void Implementation(Element::ConstPointer element, LoadGrav::Pointer load, Element::VectorType& Fe);
00084 
00088   LoadImplementationGenericBodyLoad();
00089 };
00090 
00091 
00092 
00093 
00094 #ifdef _MSC_VER 
00095 // Declare a static dummy function to prevent a MSVC 6.0 SP5 from crashing.
00096 // I have no idea why things don't work when this is not declared, but it
00097 // looks like this declaration makes compiler forget about some of the
00098 // troubles it has with templates.
00099 static void Dummy( void );
00100 #endif // #ifdef _MSC_VER
00101 
00102 }} // end namespace itk::fem
00103 
00104 #endif // #ifndef __itkFEMLoadImplementationGenericBodyLoad_h

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