/usr/include/ITK-4.5/itkElasticBodyReciprocalSplineKernelTransform.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.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | /*=========================================================================
*
* 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 __itkElasticBodyReciprocalSplineKernelTransform_hxx
#define __itkElasticBodyReciprocalSplineKernelTransform_hxx
#include "itkElasticBodyReciprocalSplineKernelTransform.h"
namespace itk
{
template< typename TScalar, unsigned int NDimensions >
ElasticBodyReciprocalSplineKernelTransform< TScalar, NDimensions >::ElasticBodyReciprocalSplineKernelTransform()
{
// Alpha = 8 ( 1 - \nu ) - 1
m_Alpha = 8.0 * ( 1.0 - .25 ) - 1;
}
template< typename TScalar, unsigned int NDimensions >
ElasticBodyReciprocalSplineKernelTransform< TScalar, NDimensions >::
~ElasticBodyReciprocalSplineKernelTransform()
{}
template< typename TScalar, unsigned int NDimensions >
void
ElasticBodyReciprocalSplineKernelTransform< TScalar, NDimensions >
::ComputeG(const InputVectorType & x, GMatrixType & gmatrix) const
{
const TScalar r = x.GetNorm();
const TScalar factor =
( r > 1e-8 ) ? ( -1.0 / r ) : NumericTraits< TScalar >::Zero;
const TScalar radial = m_Alpha * r;
for ( unsigned int i = 0; i < NDimensions; i++ )
{
const typename InputVectorType::ValueType xi = x[i] * factor;
// G is symmetric
for ( unsigned int j = 0; j < i; j++ )
{
const TScalar value = xi * x[j];
gmatrix[i][j] = value;
gmatrix[j][i] = value;
}
gmatrix[i][i] = radial + xi * x[i];
}
}
template< typename TScalar, unsigned int NDimensions >
void
ElasticBodyReciprocalSplineKernelTransform< TScalar, NDimensions >
::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "m_Alpha: " << m_Alpha << std::endl;
}
} // namespace itk
#endif
|