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/*=========================================================================
*
* Copyright UMC Utrecht and contributors
*
* 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 elxTranslationStackTransform_hxx
#define elxTranslationStackTransform_hxx
#include "elxTranslationStackTransform.h"
#include "itkImageRegionExclusionConstIteratorWithIndex.h"
#include <itkDeref.h>
#include <vnl/vnl_math.h>
namespace elastix
{
/**
* ******************* InitializeTranslationTransform ***********************
*/
template <class TElastix>
unsigned int
TranslationStackTransform<TElastix>::InitializeTranslationTransform()
{
log::error("InitializeTranslationTransform");
m_DummySubTransform = ReducedDimensionTranslationTransformType::New();
return 0;
} // end InitializeTranslationTransform()
/**
* ******************* BeforeAll ***********************
*/
template <class TElastix>
int
TranslationStackTransform<TElastix>::BeforeAll()
{
log::error("BeforeAll");
/** Initialize translation transform. */
return InitializeTranslationTransform();
} // end BeforeAll()
/**
* ******************* BeforeRegistration ***********************
*/
template <class TElastix>
void
TranslationStackTransform<TElastix>::BeforeRegistration()
{
log::error("BeforeRegistration");
/** Task 1 - Set the stack transform parameters. */
/** Determine stack transform settings. Here they are based on the fixed image. */
const SizeType imageSize = this->GetElastix()->GetFixedImage()->GetLargestPossibleRegion().GetSize();
m_NumberOfSubTransforms = imageSize[SpaceDimension - 1];
m_StackSpacing = this->GetElastix()->GetFixedImage()->GetSpacing()[SpaceDimension - 1];
m_StackOrigin = this->GetElastix()->GetFixedImage()->GetOrigin()[SpaceDimension - 1];
/** Set stack transform parameters. */
m_StackTransform->SetNumberOfSubTransforms(m_NumberOfSubTransforms);
m_StackTransform->SetStackOrigin(m_StackOrigin);
m_StackTransform->SetStackSpacing(m_StackSpacing);
/** Initialize stack sub transforms. */
m_StackTransform->SetAllSubTransforms(*m_DummySubTransform);
/** Task 2 - Give the registration an initial parameter-array. */
this->m_Registration->GetAsITKBaseType()->SetInitialTransformParameters(
ParametersType(this->GetNumberOfParameters(), 0.0));
} // end BeforeRegistration()
/**
* ********************* InitializeTransform ****************************
*/
template <class TElastix>
void
TranslationStackTransform<TElastix>::InitializeTransform()
{
log::error("InitializeTransform");
/** Initialize the m_DummySubTransform */
m_DummySubTransform->SetIdentity();
/** Set all subtransforms to a copy of the dummy Translation sub transform. */
m_StackTransform->SetAllSubTransforms(*m_DummySubTransform);
/** Set initial parameters for the first resolution to 0.0. */
ParametersType initialParameters(this->GetNumberOfParameters(), 0.0);
this->m_Registration->GetAsITKBaseType()->SetInitialTransformParametersOfNextLevel(initialParameters);
} // end InitializeTransform()
/**
* ************************* ReadFromFile ************************
*/
template <class TElastix>
void
TranslationStackTransform<TElastix>::ReadFromFile()
{
log::error("ReadFromFile");
if (!this->HasITKTransformParameters())
{
const Configuration & configuration = itk::Deref(Superclass2::GetConfiguration());
/** Read stack-spacing, stack-origin and number of sub-transforms. */
configuration.ReadParameter(m_NumberOfSubTransforms, "NumberOfSubTransforms", this->GetComponentLabel(), 0, 0);
configuration.ReadParameter(m_StackOrigin, "StackOrigin", this->GetComponentLabel(), 0, 0);
configuration.ReadParameter(m_StackSpacing, "StackSpacing", this->GetComponentLabel(), 0, 0);
/** Initialize translation transform. */
InitializeTranslationTransform();
/** Set stack transform parameters. */
m_StackTransform->SetNumberOfSubTransforms(m_NumberOfSubTransforms);
m_StackTransform->SetStackOrigin(m_StackOrigin);
m_StackTransform->SetStackSpacing(m_StackSpacing);
/** Set stack subtransforms. */
m_StackTransform->SetAllSubTransforms(*m_DummySubTransform);
}
/** Call the ReadFromFile from the TransformBase. */
this->Superclass2::ReadFromFile();
} // end ReadFromFile()
/**
* ************************* CustomizeTransformParameterMap ************************
*/
template <class TElastix>
auto
TranslationStackTransform<TElastix>::CreateDerivedTransformParameterMap() const -> ParameterMapType
{
const auto & itkTransform = *m_StackTransform;
return { { "StackSpacing", { Conversion::ToString(itkTransform.GetStackSpacing()) } },
{ "StackOrigin", { Conversion::ToString(itkTransform.GetStackOrigin()) } },
{ "NumberOfSubTransforms", { Conversion::ToString(itkTransform.GetNumberOfSubTransforms()) } } };
} // end CustomizeTransformParameterMap()
} // end namespace elastix
#endif // end #ifndef elxTranslationStackTransform_hxx
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