/usr/include/InsightToolkit/Review/itkTriangleHelper.h is in libinsighttoolkit3-dev 3.20.1+git20120521-6build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | /*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkTriangleHelper.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 __itkTriangleHelper_h
#define __itkTriangleHelper_h
#include "itkCrossHelper.h"
namespace itk
{
/** \class TriangleHelper
* \brief Convenient class for various triangles elements computation in
* 2D or 3D
*/
template< typename TPoint >
class TriangleHelper
{
public:
typedef TriangleHelper Self;
typedef TPoint PointType;
typedef typename PointType::CoordRepType CoordRepType;
typedef typename PointType::VectorType VectorType;
typedef CrossHelper< VectorType > CrossVectorType;
itkStaticConstMacro( PointDimension, unsigned int, PointType::PointDimension );
/** \brief return true if (iA,iB,iC) forms an Obtuse angle (above 90 degrees)*/
static bool IsObtuse( const PointType& iA, const PointType& iB, const PointType& iC );
/** \brief Compute Normal vector to the triangle formed by (iA,iB,iC)*/
static VectorType ComputeNormal ( const PointType& iA,
const PointType& iB,
const PointType& iC );
/** \brief Compute cotangent(iA,iB,iC)*/
static CoordRepType Cotangent ( const PointType& iA,
const PointType& iB,
const PointType& iC );
/** \brief Compute barycenter, with given weights*/
static PointType ComputeBarycenter (
const CoordRepType& iA1, const PointType& iP1,
const CoordRepType& iA2, const PointType& iP2,
const CoordRepType& iA3, const PointType& iP3 );
/** \brief Compute angles (iA,iB,iC)*/
static CoordRepType ComputeAngle( const PointType& iP1, const PointType& iP2,
const PointType& iP3 );
/** \brief Compute center of mass*/
static PointType ComputeGravityCenter (
const PointType& iP1,
const PointType& iP2,
const PointType& iP3 );
/** \brief Compute circum center*/
static PointType ComputeCircumCenter (
const PointType& iP1,
const PointType& iP2,
const PointType& iP3 );
/** \brief Compute circum center constrained to be inside the triangle.*/
static PointType ComputeConstrainedCircumCenter ( const PointType& iP1,
const PointType& iP2, const PointType& iP3 );
/** \brief Compute Area.*/
static CoordRepType ComputeArea ( const PointType& iP1, const PointType& iP2, const PointType& iP3 );
protected:
TriangleHelper( );
virtual ~TriangleHelper( );
void PrintSelf ( std::ostream& os, Indent indent ) const;
private:
TriangleHelper( const Self& ); // purposely not implemented
void operator = ( const Self& ); // purposely not implemented
};
}
#include "itkTriangleHelper.txx"
#endif
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