/usr/include/InsightToolkit/Numerics/FEM/itkFEMLoadImplementationGenericBodyLoad.h is in libinsighttoolkit3-dev 3.20.1-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99  | /*=========================================================================
  Program:   Insight Segmentation & Registration Toolkit
  Module:    itkFEMLoadImplementationGenericBodyLoad.h
  Language:  C++
  Date:      $Date$
  Version:   $Revision$
  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/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 notices for more information.
=========================================================================*/
#ifndef __itkFEMLoadImplementationGenericBodyLoad_h
#define __itkFEMLoadImplementationGenericBodyLoad_h
#include "itkFEMElementBase.h"
#include "itkFEMLoadGrav.h"
namespace itk {
namespace fem {
/**
 * \class LoadImplementationGenericBodyLoad
 * \brief Class that holds a templated generic body load implementation.
 *
 * The only accessable part of this class is a static function HandleLoad.
 * This is the function that should be passed to the VisitorDispatcher
 * when registering a load with the element class. The function is templated
 * over the a pointer to an element class, and can therefore be registered
 * with any element class.
 *
 * Function HandleLoad is declared within a class only to avoid problems with
 * MS compiler. The real gravity load implementation is in static member
 * function Implementation, which is automatically called within HandleLoad
 * function.
 *
 * \note Declare any additional general implementations of loads in a\
 *       similar way as here.
 */
class LoadImplementationGenericBodyLoad
{
public:
  /**
   * Template parameter should be a const pointer type pointing to a class
   * that is derived from the Element base class. The template parameter
   * is normally automatically determined.
   *
   * FIXME: Add concept checking.
   */
  template<class TElementClassConstPointer>
  static void HandleLoad(TElementClassConstPointer e, Element::LoadPointer l, Element::VectorType& Fe)
    {
    // Check if we really got a LoadGrav object
    LoadGrav::Pointer l0=dynamic_cast<LoadGrav*>(&*l);
    if ( !l0 )
      {
      // Passed load object was not of class LoadGrav!
      throw FEMException(__FILE__, __LINE__, "FEM error");
      }
    // Statically cast the passed pointer to the element base class and
    // call the real load implementation with the correct pointer types.
    // If cast fails, the passed pointer was of incompatible class.
    Implementation(static_cast<Element::ConstPointer>(e),l0,Fe);
    }
private:
  /**
   * Handle LoadGrav in element by integrating over the element domain.
   * This implementation requires that the element has the shape functions
   * and integration routines defined.
   *
   * It is also assumed, that element's local DOFs are numbered with respect
   * to node ID. If this is not the case, you should not use this function.
   */
  static void Implementation(Element::ConstPointer element, LoadGrav::Pointer load, Element::VectorType& Fe);
  /**
   * Private constructor prohibits creation of objects of this class
   */
  LoadImplementationGenericBodyLoad();
};
#ifdef _MSC_VER 
// Declare a static dummy function to prevent a MSVC 6.0 SP5 from crashing.
// I have no idea why things don't work when this is not declared, but it
// looks like this declaration makes compiler forget about some of the
// troubles it has with templates.
static void Dummy( void );
#endif // #ifdef _MSC_VER
}} // end namespace itk::fem
#endif // #ifndef __itkFEMLoadImplementationGenericBodyLoad_h
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