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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkFEMLoadBase.h,v $
Language: C++
Date: $Date: 2009-01-30 21:10:13 $
Version: $Revision: 1.17 $
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 __itkFEMLoadBase_h
#define __itkFEMLoadBase_h
#include "itkFEMElementBase.h"
#include "itkFEMSolution.h"
#include "itkFEMPArray.h"
namespace itk {
namespace fem {
/**
* \class Load
* \brief General abstract load base class.
*
* All other load classes that can be used in a FEM system are defined by deriving this one.
* The load class defines an external load that acts on the system. For each specific subtype
* of load, a separate load abstract class should be derived. For example we have LoadElement,
* which defines the base for all loads that act on a specific element in a system.
*/
class Load : public FEMLightObject
{
FEM_ABSTRACT_CLASS(Load,FEMLightObject)
public:
/** Array class that holds special pointers to the load objects */
typedef FEMPArray<Self> ArrayType;
/**
* Sets the pointer to solution vector. This function is automatically
* called by the Solver class on every load object.
*
* Some types of external Loads may need access to previous values of
* solution vector. If a derived class needs that, it should implement
* this function, and store the passed pointer accordingly. If the result
* vector is not required, the functionn should be left unimplemented,
* so that only the dummy implementation in base class is called.
*
* \param ptr Pointer to the object of Solution class.
*/
virtual void SetSolution(Solution::ConstPointer) {}
virtual Solution::ConstPointer GetSolution( ) { return 0;}
};
}} // end namespace itk::fem
#endif // #ifndef __itkFEMLoadBase_h
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