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/*========================================================================= |
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Program: Insight Segmentation & Registration Toolkit |
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Module: $RCSfile: itkScaleLogarithmicTransform.txx.html,v $ |
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Language: C++ |
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Date: $Date: 2006/01/17 19:15:47 $ |
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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 _itkScaleLogarithmicTransform_txx |
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DEF |
#define _itkScaleLogarithmicTransform_txx |
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#include "itkScaleLogarithmicTransform.h" |
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namespace itk |
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{ |
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// Constructor with default arguments |
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template<class ScalarType, unsigned int NDimensions> |
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ScaleLogarithmicTransform<ScalarType, NDimensions>:: |
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ScaleLogarithmicTransform() |
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{ |
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return; |
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} |
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// Destructor |
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template<class ScalarType, unsigned int NDimensions> |
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ScaleLogarithmicTransform<ScalarType, NDimensions>:: |
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~ScaleLogarithmicTransform() |
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{ |
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return; |
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} |
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// Set the parameters |
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template <class ScalarType, unsigned int NDimensions> |
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void |
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ScaleLogarithmicTransform<ScalarType, NDimensions> |
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::SetParameters( const ParametersType & parameters ) |
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{ |
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ScaleType scales; |
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for( unsigned int i=0; i<SpaceDimension; i++ ) |
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{ |
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scales[i] = exp( parameters[i] ); |
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} |
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this->m_Parameters = parameters; |
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this->SetScale( scales ); |
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} |
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// Get Parameters |
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template <class TScalarType,unsigned int NDimensions> |
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const typename ScaleLogarithmicTransform<TScalarType,NDimensions>::ParametersType & |
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ScaleLogarithmicTransform<TScalarType,NDimensions> |
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::GetParameters( void ) const |
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{ |
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itkDebugMacro( << "Getting parameters "); |
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const ScaleType & scales = this->GetScale(); |
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// Transfer the translation part |
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for(unsigned int i=0; i < SpaceDimension; i++) |
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{ |
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this->m_Parameters[i] = log( scales[i] ); |
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} |
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itkDebugMacro(<<"After getting parameters " << this->m_Parameters ); |
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return this->m_Parameters; |
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} |
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EML |
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// Print self |
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template<class ScalarType, unsigned int NDimensions> |
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void |
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ScaleLogarithmicTransform<ScalarType, NDimensions>:: |
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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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} |
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// Compute the Jacobian of the transformation |
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// It follows the same order of Parameters vector |
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template<class ScalarType, unsigned int NDimensions> |
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const typename ScaleLogarithmicTransform<ScalarType, NDimensions>::JacobianType & |
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ScaleLogarithmicTransform<ScalarType, NDimensions> |
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::GetJacobian( const InputPointType & p ) const |
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{ |
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const ScaleType & scales = this->GetScale(); |
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this->m_Jacobian.Fill(0); |
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for(unsigned int dim=0; dim<SpaceDimension; dim++) |
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{ |
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// the derivative with respect to Log(scale) = scale * derivative with respect to scale. |
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this->m_Jacobian(dim,dim) = scales[dim] * p[dim]; |
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} |
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return this->m_Jacobian; |
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} |
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} // namespace |
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#endif |
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