/usr/include/InsightToolkit/Common/itkSphereSignedDistanceFunction.txx is in libinsighttoolkit3-dev 3.20.1-1.
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 | /*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkSphereSignedDistanceFunction.txx
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 __itkSphereSignedDistanceFunction_txx
#define __itkSphereSignedDistanceFunction_txx
#include "itkSphereSignedDistanceFunction.h"
#include "vnl/vnl_math.h"
namespace itk
{
// Constructor with default arguments
template<typename TCoordRep, unsigned int VSpaceDimension>
SphereSignedDistanceFunction<TCoordRep, VSpaceDimension>
::SphereSignedDistanceFunction()
{
this->GetParameters().SetSize( SpaceDimension + 1 );
this->GetParameters().Fill( 0.0 );
this->GetParameters()[0] = 1.0;
m_Translation.Fill( 0.0 );
m_Radius = 1.0;
}
// Set the parameters
template<typename TCoordRep, unsigned int VSpaceDimension>
void
SphereSignedDistanceFunction<TCoordRep, VSpaceDimension>
::SetParameters( const ParametersType & parameters )
{
if ( parameters != this->GetParameters() )
{
this->m_Parameters = parameters;
m_Radius = parameters[0];
for( unsigned int i=0; i<SpaceDimension; i++ )
{
m_Translation[i] = parameters[i+1];
}
this->Modified();
}
}
// Print self
template<typename TCoordRep, unsigned int VSpaceDimension>
void
SphereSignedDistanceFunction<TCoordRep, VSpaceDimension>
::PrintSelf(std::ostream &os, Indent indent) const
{
Superclass::PrintSelf(os,indent);
os << indent << "Translation: " << m_Translation << std::endl;
os << indent << "Radius: " << m_Radius << std::endl;
}
// Evaluate the signed distance
template<typename TCoordRep, unsigned int VSpaceDimension>
typename SphereSignedDistanceFunction<TCoordRep, VSpaceDimension>
::OutputType
SphereSignedDistanceFunction<TCoordRep, VSpaceDimension>
::Evaluate( const PointType& point ) const
{
typedef typename NumericTraits<OutputType>::RealType RealType;
RealType output = 0.0;
for( unsigned int j = 0; j < SpaceDimension; j++ )
{
output += vnl_math_sqr( ( point[j] - m_Translation[j] ) );
}
output = vcl_sqrt(output) - m_Radius;
return output;
}
} // end namespace itk
#endif
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