/usr/include/ITK-4.5/itkTimeVaryingVelocityFieldTransform.hxx is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o644.
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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 __itkTimeVaryingVelocityFieldTransform_hxx
#define __itkTimeVaryingVelocityFieldTransform_hxx
#include "itkTimeVaryingVelocityFieldTransform.h"
#include "itkTimeVaryingVelocityFieldIntegrationImageFilter.h"
namespace itk
{
/**
* Constructor
*/
template<typename TScalar, unsigned int NDimensions>
TimeVaryingVelocityFieldTransform<TScalar, NDimensions>
::TimeVaryingVelocityFieldTransform()
{
}
/**
* Destructor
*/
template<typename TScalar, unsigned int NDimensions>
TimeVaryingVelocityFieldTransform<TScalar, NDimensions>::
~TimeVaryingVelocityFieldTransform()
{
}
template<typename TScalar, unsigned int NDimensions>
void
TimeVaryingVelocityFieldTransform<TScalar, NDimensions>
::IntegrateVelocityField()
{
if( this->GetVelocityField() )
{
typedef TimeVaryingVelocityFieldIntegrationImageFilter
<VelocityFieldType, DisplacementFieldType> IntegratorType;
typename IntegratorType::Pointer integrator = IntegratorType::New();
integrator->SetInput( this->GetVelocityField() );
integrator->SetLowerTimeBound( this->GetLowerTimeBound() );
integrator->SetUpperTimeBound( this->GetUpperTimeBound() );
if( this->GetVelocityFieldInterpolator() )
{
integrator->SetVelocityFieldInterpolator( this->GetModifiableVelocityFieldInterpolator() );
}
integrator->SetNumberOfIntegrationSteps( this->GetNumberOfIntegrationSteps() );
integrator->Update();
typename DisplacementFieldType::Pointer displacementField = integrator->GetOutput();
displacementField->DisconnectPipeline();
this->SetDisplacementField( displacementField );
this->GetModifiableInterpolator()->SetInputImage( displacementField );
typename IntegratorType::Pointer inverseIntegrator = IntegratorType::New();
inverseIntegrator->SetInput( this->GetVelocityField() );
inverseIntegrator->SetLowerTimeBound( this->GetUpperTimeBound() );
inverseIntegrator->SetUpperTimeBound( this->GetLowerTimeBound() );
if( !this->GetVelocityFieldInterpolator() )
{
inverseIntegrator->SetVelocityFieldInterpolator( this->GetModifiableVelocityFieldInterpolator() );
}
inverseIntegrator->SetNumberOfIntegrationSteps( this->GetNumberOfIntegrationSteps() );
inverseIntegrator->Update();
typename DisplacementFieldType::Pointer inverseDisplacementField = inverseIntegrator->GetOutput();
inverseDisplacementField->DisconnectPipeline();
this->SetInverseDisplacementField( inverseDisplacementField );
}
else
{
itkExceptionMacro( "The velocity field does not exist." );
}
}
} // namespace itk
#endif
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