/usr/include/ITK-4.5/itkSphereSpatialFunction.hxx is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef __itkSphereSpatialFunction_hxx
#define __itkSphereSpatialFunction_hxx
#include "itkSphereSpatialFunction.h"
namespace itk
{
template< unsigned int VImageDimension, typename TInput >
SphereSpatialFunction< VImageDimension, TInput >
::SphereSpatialFunction()
{
m_Radius = 1.0;
m_Center.Fill(0.0f);
}
template< unsigned int VImageDimension, typename TInput >
SphereSpatialFunction< VImageDimension, TInput >
::~SphereSpatialFunction()
{}
template< unsigned int VImageDimension, typename TInput >
typename SphereSpatialFunction< VImageDimension, TInput >::OutputType
SphereSpatialFunction< VImageDimension, TInput >
::Evaluate(const InputType & position) const
{
double acc = 0;
for ( unsigned int i = 0; i < VImageDimension; i++ )
{
acc += ( position[i] - m_Center[i] ) * ( position[i] - m_Center[i] );
}
acc -= m_Radius * m_Radius;
if ( acc <= 0 ) // inside the sphere
{
return 1;
}
else
{
return 0; // outside the sphere
}
}
template< unsigned int VImageDimension, typename TInput >
void
SphereSpatialFunction< VImageDimension, TInput >
::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
unsigned int i;
os << indent << "Center: [";
for ( i = 0; i < VImageDimension - 1; i++ )
{
os << m_Center[i] << ", ";
}
os << "]" << std::endl;
os << indent << "Radius: " << m_Radius << std::endl;
}
} // end namespace itk
#endif
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