/usr/include/InsightToolkit/Common/itkTriangleCell.h is in libinsighttoolkit3-dev 3.20.1-1.
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Program: Insight Segmentation & Registration Toolkit
Module: itkTriangleCell.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 __itkTriangleCell_h
#define __itkTriangleCell_h
#include "itkCellInterface.h"
#include "itkLineCell.h"
#include "itkTriangleCellTopology.h"
#include <vector>
namespace itk
{
/** \class TriangleCell
* TriangleCell represents a triangle for a Mesh.
*
* Template parameters for TriangleCell:
*
* TPixelType =
* The type associated with a point, cell, or boundary for use in storing
* its data.
*
* TCellTraits =
* Type information of mesh containing cell.
*
* \ingroup MeshObjects
*/
template < typename TCellInterface >
class ITK_EXPORT TriangleCell:
public TCellInterface, private TriangleCellTopology
{
public:
/** Standard class typedefs. */
itkCellCommonTypedefs(TriangleCell);
itkCellInheritedTypedefs(TCellInterface);
/** Standard part of every itk Object. */
itkTypeMacro(TriangleCell, CellInterface);
/** The type of boundary for this triangle's vertices. */
typedef VertexCell< TCellInterface > VertexType;
typedef typename VertexType::SelfAutoPointer VertexAutoPointer;
/** The type of boundary for this triangle's edges. */
typedef LineCell< TCellInterface > EdgeType;
typedef typename EdgeType::SelfAutoPointer EdgeAutoPointer;
/** Triangle-specific topology numbers. */
itkStaticConstMacro(NumberOfPoints, unsigned int, 3);
itkStaticConstMacro(NumberOfVertices, unsigned int, 3);
itkStaticConstMacro(NumberOfEdges, unsigned int, 3);
itkStaticConstMacro(CellDimension, unsigned int, 2);
/** Implement the standard CellInterface. */
virtual CellGeometry GetType(void) const
{return Superclass::TRIANGLE_CELL;}
virtual void MakeCopy( CellAutoPointer & ) const;
virtual unsigned int GetDimension(void) const;
virtual unsigned int GetNumberOfPoints(void) const;
virtual CellFeatureCount GetNumberOfBoundaryFeatures(int dimension) const;
virtual bool GetBoundaryFeature(int dimension, CellFeatureIdentifier,
CellAutoPointer &);
virtual void SetPointIds(PointIdConstIterator first);
virtual void SetPointIds(PointIdConstIterator first,
PointIdConstIterator last);
virtual void SetPointId(int localId, PointIdentifier);
virtual PointIdIterator PointIdsBegin(void);
virtual PointIdConstIterator PointIdsBegin(void) const;
virtual PointIdIterator PointIdsEnd(void);
virtual PointIdConstIterator PointIdsEnd(void) const;
/** Triangle-specific interface. */
virtual CellFeatureCount GetNumberOfVertices(void) const;
virtual CellFeatureCount GetNumberOfEdges(void) const;
virtual bool GetVertex(CellFeatureIdentifier, VertexAutoPointer &);
virtual bool GetEdge(CellFeatureIdentifier, EdgeAutoPointer &);
virtual bool EvaluatePosition(CoordRepType*,
PointsContainer* ,
CoordRepType*,
CoordRepType [],
double *,
InterpolationWeightType*);
/** Cell visitor interface. */
itkCellVisitMacro(Superclass::TRIANGLE_CELL);
/** \brief Compute Area to a TriangleCell given a PointsContainer. */
CoordRepType ComputeArea( PointsContainer* );
PointType ComputeBarycenter( CoordRepType*,
PointsContainer* );
PointType ComputeCenterOfGravity( PointsContainer* );
PointType ComputeCircumCenter( PointsContainer* );
public:
TriangleCell() :
m_PointIds( NumberOfPoints, NumericTraits<PointIdentifier>::max() )
{}
~TriangleCell() {}
protected:
/** Store the number of points needed for a triangle. */
std::vector< PointIdentifier > m_PointIds;
private:
TriangleCell(const Self&); //purposely not implemented
void operator=(const Self&); //purposely not implemented
/** Computes the SQUARED distance between a point and a line segment defined
* by two other points */
double DistanceToLine(PointType x, PointType p1, PointType p2,
double &t, CoordRepType *closestPoint);
double DistanceToLine(PointType x, PointType p1, PointType p2,
double &t, PointType &closestPoint);
};
} // end namespace itk
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkTriangleCell.txx"
#endif
#endif
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