/usr/include/InsightToolkit/Common/itkScalableAffineTransform.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.
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Program: Insight Segmentation & Registration Toolkit
Module: itkScalableAffineTransform.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 __itkScalableAffineTransform_txx
#define __itkScalableAffineTransform_txx
#include "itkNumericTraits.h"
#include "itkScalableAffineTransform.h"
#include "itkAffineTransform.h"
#include "vnl/algo/vnl_matrix_inverse.h"
namespace itk
{
/** Constructor with default arguments */
template<class TScalarType, unsigned int NDimensions>
ScalableAffineTransform<TScalarType, NDimensions>
::ScalableAffineTransform()
: Superclass(Self::OutputSpaceDimension, Self::ParametersDimension)
{
for (unsigned int i=0; i<NDimensions; i++)
{
m_Scale[i] = 1;
m_MatrixScale[i] = 1;
}
}
/** Constructor with default arguments */
template<class TScalarType, unsigned int NDimensions>
ScalableAffineTransform<TScalarType, NDimensions>
::ScalableAffineTransform( unsigned int outputSpaceDimension,
unsigned int parametersDimension )
: Superclass(outputSpaceDimension, parametersDimension)
{
for (unsigned int i=0; i<NDimensions; i++)
{
m_Scale[i] = 1;
m_MatrixScale[i] = 1;
}
}
/** Constructor with default arguments */
template<class TScalarType, unsigned int NDimensions>
ScalableAffineTransform<TScalarType, NDimensions>
::ScalableAffineTransform( const MatrixType & matrix,
const OutputVectorType & offset )
: Superclass(matrix, offset)
{
for (unsigned int i=0; i<NDimensions; i++)
{
m_Scale[i] = 1;
m_MatrixScale[i] = 1;
}
}
/** Destructor */
template<class TScalarType, unsigned int NDimensions>
ScalableAffineTransform<TScalarType, NDimensions>
::~ScalableAffineTransform()
{
return;
}
/** Print self */
template<class TScalarType, unsigned int NDimensions>
void
ScalableAffineTransform<TScalarType, NDimensions>
::PrintSelf(std::ostream &os, Indent indent) const
{
Superclass::PrintSelf(os,indent);
unsigned int i;
os << indent << "Scale : ";
for (i = 0; i < NDimensions; i++)
{
os << m_Scale[i] << " ";
}
os << std::endl;
os << indent << "MatrixScale : ";
for (i = 0; i < NDimensions; i++)
{
os << m_MatrixScale[i] << " ";
}
os << std::endl;
}
// Set the parameters in order to fit an Identity transform
template<class TScalarType, unsigned int NDimensions>
void
ScalableAffineTransform<TScalarType, NDimensions>
::SetIdentity( void )
{
for (unsigned int i=0; i<NDimensions; i++)
{
m_Scale[i] = 1;
m_MatrixScale[i] = 1;
}
this->Superclass::SetIdentity();
}
/** Set the scale of the transformation */
template<class TScalarType, unsigned int NDimensions>
void
ScalableAffineTransform<TScalarType, NDimensions>
::SetScale(const InputVectorType & scale )
{
unsigned int i;
for (i=0; i<NDimensions; i++)
{
m_Scale[i] = scale[i];
}
this->ComputeMatrix();
this->Modified();
}
template<class TScalarType, unsigned int NDimensions>
void
ScalableAffineTransform<TScalarType, NDimensions>
::SetScale(const double scale[NDimensions] )
{
unsigned int i;
for (i=0; i<NDimensions; i++)
{
m_Scale[i] = scale[i];
}
this->ComputeMatrix();
this->Modified();
}
// Get an inverse of this transform
template<class TScalarType, unsigned int NDimensions>
bool
ScalableAffineTransform<TScalarType, NDimensions>
::GetInverse(Self* inverse) const
{
return this->Superclass::GetInverse(inverse);
}
// Return an inverse of this transform
template<class TScalarType, unsigned int NDimensions>
typename ScalableAffineTransform<TScalarType, NDimensions>
::InverseTransformBasePointer
ScalableAffineTransform<TScalarType, NDimensions>
::GetInverseTransform() const
{
Pointer inv = New();
return this->GetInverse(inv) ? inv.GetPointer() : NULL;
}
/** Set the scale of the transformation */
template<class TScalarType, unsigned int NDimensions>
void
ScalableAffineTransform<TScalarType, NDimensions>
::ComputeMatrix()
{
unsigned int i;
for (i=0; i<NDimensions; i++)
{
if(m_Scale[i] != m_MatrixScale[i])
{
break;
}
}
if ( i < NDimensions )
{
MatrixType mat;
typename MatrixType::InternalMatrixType & imat = mat.GetVnlMatrix();
for (i=0; i<NDimensions; i++)
{
if(m_MatrixScale[i] != 0 && m_Scale[i] != 0)
{
imat.put(i, i, m_Scale[i]/m_MatrixScale[i] * this->GetMatrix()[i][i]);
m_MatrixScale[i] = m_Scale[i];
}
else
{
m_Scale[i] = 1;
m_MatrixScale[i] = 1;
imat.put(i, i, this->GetMatrix()[i][i]);
}
}
Superclass::SetVarMatrix(mat);
}
}
} // namespace
#endif
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