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/*========================================================================= |
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Program: Insight Segmentation & Registration Toolkit |
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Module: $RCSfile: itkSphereSpatialFunction.txx.html,v $ |
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Language: C++ |
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Date: $Date: 2006/01/17 19:15:48 $ |
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Version: $Revision: 1.4 $ |
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Copyright (c) Insight Software Consortium. All rights reserved. |
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See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. |
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This software is distributed WITHOUT ANY WARRANTY; without even |
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
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PURPOSE. See the above copyright notices for more information. |
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=========================================================================*/ |
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#ifndef __itkSphereSpatialFunction_txx |
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#define __itkSphereSpatialFunction_txx |
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#include "itkSphereSpatialFunction.h" |
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namespace itk |
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{ |
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template <unsigned int VImageDimension,typename TInput> |
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SphereSpatialFunction<VImageDimension,TInput> |
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::SphereSpatialFunction() |
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{ |
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m_Radius = 1.0; |
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m_Center.Fill(0.0); |
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} |
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template <unsigned int VImageDimension,typename TInput> |
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SphereSpatialFunction<VImageDimension,TInput> |
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::~SphereSpatialFunction() |
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{ |
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} |
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template <unsigned int VImageDimension,typename TInput> |
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typename SphereSpatialFunction<VImageDimension,TInput>::OutputType |
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SphereSpatialFunction<VImageDimension,TInput> |
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::Evaluate(const InputType& position) const |
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{ |
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double acc = 0; |
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for(unsigned int i = 0; i < VImageDimension; i++) |
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{ |
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acc += (position[i] - m_Center[i]) * (position[i] - m_Center[i]); |
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} |
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acc -= m_Radius*m_Radius; |
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if(acc <= 0) // inside the sphere |
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{ |
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return 1; |
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} |
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else |
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{ |
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return 0; // outside the sphere |
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} |
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} |
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template <unsigned int VImageDimension,typename TInput> |
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void |
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SphereSpatialFunction<VImageDimension,TInput> |
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::PrintSelf(std::ostream& os, Indent indent) const |
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{ |
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Superclass::PrintSelf(os,indent); |
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unsigned int i; |
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os << indent << "Center: ["; |
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for (i=0; i < VImageDimension - 1; i++) |
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{ |
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os << m_Center[i] << ", "; |
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} |
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os << "]" << std::endl; |
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os << indent << "Radius: " << m_Radius << std::endl; |
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} |
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} // end namespace itk |
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#endif |
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