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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.
*
*=========================================================================*/
// ITK transforms
#include "itkAffineTransform.h"
#include "itkTranslationTransform.h"
#include "itkBSplineTransform.h"
#include "itkCompositeTransform.h"
// elastix GPU transforms
#include "itkAdvancedMatrixOffsetTransformBase.h"
#include "itkAdvancedTranslationTransform.h"
#include "itkAdvancedBSplineDeformableTransform.h"
#include "itkAdvancedCombinationTransform.h"
#include <iomanip>
#include <type_traits> // For std::is_base.
namespace
{
const unsigned int Dimension = 3;
typedef float ScalarType;
template <typename TDerivedTransform>
bool
IsDerivedTransformOfType(const itk::SmartPointer<itk::Transform<ScalarType, Dimension, Dimension>> & ptr)
{
static_assert(std::is_base_of_v<itk::Transform<ScalarType, Dimension, Dimension>, TDerivedTransform>,
"TDerivedTransform must be derived from itk::Transform!");
return dynamic_cast<const TDerivedTransform *>(ptr.GetPointer()) != nullptr;
}
} // namespace
//-------------------------------------------------------------------------------------
int
main()
{
// ITK transform typedefs
// typedef itk::Transform< ScalarType, Dimension, Dimension > TransformType;
using AffineTransformType = itk::AffineTransform<ScalarType, Dimension>;
using TranslationTransformType = itk::TranslationTransform<ScalarType, Dimension>;
using BSplineTransformType = itk::BSplineTransform<ScalarType, Dimension, 3>;
using CompositeTransformType = itk::CompositeTransform<ScalarType, Dimension>;
// elastix advanced transform typedefs
using AdvancedCombinationTransformType = itk::AdvancedCombinationTransform<ScalarType, Dimension>;
// typedef itk::AdvancedTransform< ScalarType, Dimension, Dimension >
// AdvancedTransformType;
using AdvancedAffineTransformType = itk::AdvancedMatrixOffsetTransformBase<ScalarType, Dimension, Dimension>;
using AdvancedTranslationTransformType = itk::AdvancedTranslationTransform<ScalarType, Dimension>;
using AdvancedBSplineTransformType = itk::AdvancedBSplineDeformableTransform<ScalarType, Dimension, 3>;
// Define ITK transforms
const auto affine = AffineTransformType::New();
const auto translation = TranslationTransformType::New();
const auto bspline = BSplineTransformType::New();
// Define ITK composite transform and test it
const auto composite = CompositeTransformType::New();
if (composite->GetNumberOfTransforms() != 0)
{
std::cerr << "Error in getting number of transforms from itk::CompositeTransform." << std::endl;
return EXIT_FAILURE;
}
composite->AddTransform(affine);
composite->AddTransform(translation);
composite->AddTransform(bspline);
if (composite->GetNumberOfTransforms() != 3)
{
std::cerr << "Error in getting number of transforms from itk::CompositeTransform." << std::endl;
return EXIT_FAILURE;
}
// Define elastix advanced composite transforms
const auto advancedAffine = AdvancedAffineTransformType::New();
const auto advancedTranslation = AdvancedTranslationTransformType::New();
const auto advancedBSpline = AdvancedBSplineTransformType::New();
// Define elastix advanced composite transform and test it
const auto advancedComposite = AdvancedCombinationTransformType::New();
if (advancedComposite->GetNumberOfTransforms() != 0)
{
std::cerr << "Error in getting number of transforms from itk::AdvancedCombinationTransform." << std::endl;
return EXIT_FAILURE;
}
advancedComposite->SetCurrentTransform(advancedAffine);
if (advancedComposite->GetNumberOfTransforms() != 1)
{
std::cerr << "Error in getting number of transforms from itk::AdvancedCombinationTransform." << std::endl;
return EXIT_FAILURE;
}
// Define the next one
const auto advancedCompositeTranslation = AdvancedCombinationTransformType::New();
advancedCompositeTranslation->SetCurrentTransform(advancedTranslation);
advancedComposite->SetInitialTransform(advancedCompositeTranslation);
if (advancedCompositeTranslation->GetNumberOfTransforms() != 1)
{
std::cerr << "Error in getting number of transforms from itk::AdvancedCombinationTransform." << std::endl;
return EXIT_FAILURE;
}
if (advancedComposite->GetNumberOfTransforms() != 2)
{
std::cerr << "Error in getting number of transforms from itk::AdvancedCombinationTransform." << std::endl;
return EXIT_FAILURE;
}
// Define the next one
const auto advancedCompositeBSpline = AdvancedCombinationTransformType::New();
advancedCompositeBSpline->SetCurrentTransform(advancedBSpline);
advancedCompositeTranslation->SetInitialTransform(advancedCompositeBSpline);
if (advancedCompositeBSpline->GetNumberOfTransforms() != 1)
{
std::cerr << "Error in getting number of transforms from itk::AdvancedCombinationTransform." << std::endl;
return EXIT_FAILURE;
}
if (advancedCompositeTranslation->GetNumberOfTransforms() != 2)
{
std::cerr << "Error in getting number of transforms from itk::AdvancedCombinationTransform." << std::endl;
return EXIT_FAILURE;
}
if (advancedComposite->GetNumberOfTransforms() != 3)
{
std::cerr << "Error in getting number of transforms from itk::AdvancedCombinationTransform." << std::endl;
return EXIT_FAILURE;
}
// Checks for GetNthTransform for itk::CompositeTransform
if (!IsDerivedTransformOfType<AffineTransformType>(composite->GetNthTransform(0)))
{
std::cerr << "Error expecting AffineTransform." << std::endl;
return EXIT_FAILURE;
}
if (!IsDerivedTransformOfType<TranslationTransformType>(composite->GetNthTransform(1)))
{
std::cerr << "Error expecting TranslationTransform." << std::endl;
return EXIT_FAILURE;
}
if (!IsDerivedTransformOfType<BSplineTransformType>(composite->GetNthTransform(2)))
{
std::cerr << "Error expecting BSplineTransform." << std::endl;
return EXIT_FAILURE;
}
// Checks for GetNthTransform for itk::AdvancedCombinationTransform
if (!IsDerivedTransformOfType<AdvancedAffineTransformType>(advancedComposite->GetNthTransform(0)))
{
std::cerr << "Error expecting AdvancedAffineTransform." << std::endl;
return EXIT_FAILURE;
}
if (!IsDerivedTransformOfType<AdvancedTranslationTransformType>(advancedComposite->GetNthTransform(1)))
{
std::cerr << "Error expecting AdvancedTranslationTransform." << std::endl;
return EXIT_FAILURE;
}
if (!IsDerivedTransformOfType<AdvancedBSplineTransformType>(advancedComposite->GetNthTransform(2)))
{
std::cerr << "Error expecting AdvancedBSplineTransform." << std::endl;
return EXIT_FAILURE;
}
if (!IsDerivedTransformOfType<AdvancedTranslationTransformType>(advancedCompositeTranslation->GetNthTransform(0)))
{
std::cerr << "Error expecting AdvancedTranslationTransform." << std::endl;
return EXIT_FAILURE;
}
if (!IsDerivedTransformOfType<AdvancedBSplineTransformType>(advancedCompositeTranslation->GetNthTransform(1)))
{
std::cerr << "Error expecting AdvancedBSplineTransform." << std::endl;
return EXIT_FAILURE;
}
if (!IsDerivedTransformOfType<AdvancedBSplineTransformType>(advancedCompositeBSpline->GetNthTransform(0)))
{
std::cerr << "Error expecting AdvancedBSplineTransform." << std::endl;
return EXIT_FAILURE;
}
/** Return a value. */
return EXIT_SUCCESS;
} // end main
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