/usr/include/InsightToolkit/Numerics/FEM/itkFEMElementStd.h is in libinsighttoolkit3-dev 3.20.1-1.
This file is owned by root:root, with mode 0o644.
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Program: Insight Segmentation & Registration Toolkit
Module: itkFEMElementStd.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 __itkFEMElementStd_h
#define __itkFEMElementStd_h
#include "itkFEMElementBase.h"
namespace itk {
namespace fem {
/**
* \class ElementStd
* \brief Implements standard node management in the element classes.
*
* This is a templated helper class that automatically defines some of
* the virtual functions in elements. It is used to avoid code duplication.
*
* If a derived element class has DOFs associated only with points
* that define the geometry of the element, you can derive from this
* class to automatically create all the functions required for proper
* node management.
*
* You must specify three or four template parameters:
*
* VNumberOfNodes - Number of nodes that define the element
* (e.g. four for quadrilateral)
*
* VNumberOfSpatialDimensions - Number of dimensions of space in which the
* element is defined. This is also the size of a vector
* returned by GetNodeCoordinates() member funtion.
*
* TBaseClass - Class from which ElementStd is derived. TBaseClass must
* be derived from the Element base class. This enables you
* to use this class at any level of element definition.
* If not specified, it defaults to the Element class.
*/
template<unsigned int VNumberOfNodes, unsigned int VNumberOfSpatialDimensions, class TBaseClass=Element>
class ElementStd : public TBaseClass
{
FEM_ABSTRACT_CLASS(ElementStd,TBaseClass)
public:
// FIXME: Add concept cheking for TBaseClass, and TPointClass
// Repeat typedefs and enums from parent class
typedef typename Superclass::Float Float;
typedef typename Superclass::MatrixType MatrixType;
typedef typename Superclass::VectorType VectorType;
typedef typename Superclass::LoadType LoadType;
typedef typename Superclass::LoadPointer LoadPointer;
typedef typename Superclass::NodeIDType NodeIDType;
typedef typename Superclass::DegreeOfFreedomIDType DegreeOfFreedomIDType;
typedef typename Superclass::Node Node;
enum{ InvalidDegreeOfFreedomID = Superclass::InvalidDegreeOfFreedomID };
/**
* Number of nodes that define the element.
*/
enum { NumberOfNodes=VNumberOfNodes };
/**
* Number of dimensions of space in which element can exist.
*/
enum { NumberOfSpatialDimensions=VNumberOfSpatialDimensions };
/**
* Default constructor just clears the ivars
*/
ElementStd();
//////////////////////////////////////////////////////////////////////////
/**
* Methods that define the geometry of an element
*/
virtual unsigned int GetNumberOfNodes( void ) const
{ return NumberOfNodes; }
virtual NodeIDType GetNode(unsigned int n) const
{
if(n>=NumberOfNodes)
{
return 0;
}
return this->m_node[n];
}
virtual void SetNode(unsigned int n, NodeIDType node)
{
if(n>=NumberOfNodes)
{
return;
}
this->m_node[n]=node;
}
virtual const VectorType& GetNodeCoordinates( unsigned int n ) const
{
return m_node[n]->GetCoordinates();
}
virtual unsigned int GetNumberOfSpatialDimensions() const
{
return NumberOfSpatialDimensions;
}
//////////////////////////////////////////////////////////////////////////
/**
* Methods related to I/O
*/
/**
* Read data for this class from input stream
*/
virtual void Read( std::istream&, void* info );
/**
* Write data for this class to output stream
*/
virtual void Write( std::ostream& f ) const;
protected:
/**
* Array of pointers to point objects that define the element
*/
NodeIDType m_node[NumberOfNodes];
};
#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
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkFEMElementStd.txx"
#endif
#endif // #ifndef __itkFEMElementStd_h
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