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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkTorusInteriorExteriorSpatialFunction.txx,v $
Language: C++
Date: $Date: 2006-03-19 04:36:59 $
Version: $Revision: 1.5 $
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 __itkTorusInteriorExteriorSpatialFunction_txx
#define __itkTorusInteriorExteriorSpatialFunction_txx
#include "itkTorusInteriorExteriorSpatialFunction.h"
namespace itk
{
template <unsigned int VDimension, typename TInput>
TorusInteriorExteriorSpatialFunction<VDimension, TInput>
::TorusInteriorExteriorSpatialFunction()
{
m_Origin.Fill(0.0);
// These default values are not picked for any particular reason
m_MajorRadius = 3;
m_MinorRadius = 1;
}
template <unsigned int VDimension, typename TInput>
TorusInteriorExteriorSpatialFunction<VDimension, TInput>
::~TorusInteriorExteriorSpatialFunction()
{
}
template <unsigned int VDimension, typename TInput>
typename TorusInteriorExteriorSpatialFunction<VDimension, TInput>::OutputType
TorusInteriorExteriorSpatialFunction<VDimension, TInput>
::Evaluate(const InputType& position) const
{
double x = position[0] - m_Origin[0];
double y = position[1] - m_Origin[1];
double z = position[2] - m_Origin[2];
double k = vcl_pow(m_MajorRadius - vcl_sqrt(x*x + y*y), 2.0) + z*z;
if( k <= (m_MinorRadius * m_MinorRadius) )
return true;
else
return false;
}
template <unsigned int VDimension, typename TInput>
void
TorusInteriorExteriorSpatialFunction<VDimension, TInput>
::PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf(os,indent);
unsigned int i;
os << indent << "Origin: [";
for (i=0; i < VDimension - 1; i++)
{
os << m_Origin[i] << ", ";
}
os << "]" << std::endl;
os << indent << "Major radius: " << m_MajorRadius << std::endl;
os << indent << "Minor radius: " << m_MinorRadius << std::endl;
}
} // end namespace itk
#endif
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