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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.
*
*=========================================================================*/
// First include the header files to be tested:
#include "BSplineResampleInterpolator/elxBSplineResampleInterpolator.h"
#include "BSplineResampleInterpolatorFloat/elxBSplineResampleInterpolatorFloat.h"
#include "LinearResampleInterpolator/elxLinearResampleInterpolator.h"
#include "NearestNeighborResampleInterpolator/elxNearestNeighborResampleInterpolator.h"
#include "RayCastResampleInterpolator/elxRayCastResampleInterpolator.h"
#include "RDBSplineResampleInterpolator/elxRDBSplineResampleInterpolator.h" // For ReducedDimensionBSplineResampleInterpolator.
#include "elxElastixTemplate.h"
#include "elxGTestUtilities.h"
#include "../Core/Main/GTesting/elxCoreMainGTestUtilities.h"
// ITK header file:
#include <itkImage.h>
// GoogleTest header file:
#include <gtest/gtest.h>
// Standard C++ header file:
#include <typeinfo>
using ParameterValuesType = itk::ParameterFileParser::ParameterValuesType;
using ParameterMapType = itk::ParameterFileParser::ParameterMapType;
// Using-declarations:
using elx::CoreMainGTestUtilities::CheckNew;
using elx::GTestUtilities::ExpectAllKeysUnique;
using elx::GTestUtilities::MakeMergedMap;
namespace
{
template <unsigned NDimension>
using ElastixType = elx::ElastixTemplate<itk::Image<float, NDimension>, itk::Image<float, NDimension>>;
// All tests specific to a dimension.
template <unsigned NDimension>
struct WithDimension
{
template <template <typename> class TInterpolatorTemplate>
struct WithInterpolator
{
using InterpolatorType = TInterpolatorTemplate<ElastixType<NDimension>>;
static void
Test_CreateTransformParameterMap_for_default_interpolator(const ParameterMapType & expectedDerivedParameterMap)
{
SCOPED_TRACE(std::string("Function = ")
.append(__func__)
.append("\n InterpolatorType = ")
.append(typeid(InterpolatorType).name()));
const auto newInterpolator = CheckNew<InterpolatorType>();
const elx::ResampleInterpolatorBase<ElastixType<NDimension>> & interpolator = *newInterpolator;
ParameterMapType actualParameterMap;
interpolator.CreateTransformParameterMap(actualParameterMap);
const ParameterMapType expectedBaseParameterMap = { { "ResampleInterpolator",
{ interpolator.elxGetClassName() } } };
ExpectAllKeysUnique(expectedDerivedParameterMap, expectedBaseParameterMap);
EXPECT_EQ(actualParameterMap, MakeMergedMap(expectedDerivedParameterMap, expectedBaseParameterMap));
}
};
static void
Test_CreateTransformParameterMap_for_default_interpolator()
{
using namespace elx;
const std::string expectedFinalBSplineInterpolationOrderKey = "FinalBSplineInterpolationOrder";
const std::string expectedZero = "0";
WithInterpolator<BSplineResampleInterpolator>::Test_CreateTransformParameterMap_for_default_interpolator(
{ { expectedFinalBSplineInterpolationOrderKey, { "3" } } });
WithInterpolator<BSplineResampleInterpolatorFloat>::Test_CreateTransformParameterMap_for_default_interpolator(
{ { expectedFinalBSplineInterpolationOrderKey, { "3" } } });
WithInterpolator<LinearResampleInterpolator>::Test_CreateTransformParameterMap_for_default_interpolator({});
WithInterpolator<NearestNeighborResampleInterpolator>::Test_CreateTransformParameterMap_for_default_interpolator(
{});
const auto skippedTest = [expectedZero] {
// Note: The following crashes when trying to retrieve "PreParameters" by `m_PreTransform->GetParameters()`.
WithInterpolator<RayCastResampleInterpolator>::Test_CreateTransformParameterMap_for_default_interpolator(
{ { "FocalPoint", ParameterValuesType(NDimension, expectedZero) },
{ "PreParameters", { expectedZero } },
{ "Threshold", { expectedZero } } });
};
(void)skippedTest;
WithInterpolator<ReducedDimensionBSplineResampleInterpolator>::
Test_CreateTransformParameterMap_for_default_interpolator(
{ { expectedFinalBSplineInterpolationOrderKey, { "1" } } });
}
};
} // namespace
GTEST_TEST(ResampleInterpolator, CreateTransformParameterMapForDefaultInterpolator)
{
WithDimension<2>::Test_CreateTransformParameterMap_for_default_interpolator();
WithDimension<3>::Test_CreateTransformParameterMap_for_default_interpolator();
}
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