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/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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.
*
*=========================================================================*/
#include "itkPhysicalPointImageSource.h"
#include "itkImageFileWriter.h"
#include "itkVectorImage.h"
#include "itkVectorIndexSelectionCastImageFilter.h"
#include "itkTestingMacros.h"
namespace
{
template <typename TImageType>
int
itkPhysicalPointImageSourceTest(const std::string & fname,
typename TImageType::SizeType & size,
typename TImageType::SpacingType & spacing,
typename TImageType::PointType & origin,
typename TImageType::DirectionType & direction)
{
using ImageType = TImageType;
using PhysicalPointImageSourceType = itk::PhysicalPointImageSource<ImageType>;
auto physicalPointImageSource = PhysicalPointImageSourceType::New();
ITK_TRY_EXPECT_NO_EXCEPTION(physicalPointImageSource->UpdateLargestPossibleRegion());
physicalPointImageSource->SetSize(size);
physicalPointImageSource->SetSpacing(spacing);
physicalPointImageSource->SetOrigin(origin);
physicalPointImageSource->SetDirection(direction);
ITK_TRY_EXPECT_NO_EXCEPTION(physicalPointImageSource->UpdateLargestPossibleRegion());
using ValueImageType =
itk::Image<typename itk::NumericTraits<typename ImageType::PixelType>::ValueType, ImageType::ImageDimension>;
using ValueImageCastFilter = itk::VectorIndexSelectionCastImageFilter<ImageType, ValueImageType>;
auto vif = ValueImageCastFilter::New();
vif->SetInput(physicalPointImageSource->GetOutput());
vif->SetIndex(0);
using WriterType = itk::ImageFileWriter<ValueImageType>;
auto writer = WriterType::New();
writer->SetFileName(fname);
writer->SetInput(vif->GetOutput());
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
return EXIT_SUCCESS;
}
} // namespace
int
itkPhysicalPointImageSourceTest(int argc, char * argv[])
{
if (argc < 3)
{
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " outputImage whichTest [ theta ]" << std::endl;
return EXIT_FAILURE;
}
constexpr unsigned int ImageDimension = 2;
using PixelType = unsigned char;
using ImageType = itk::Image<PixelType, ImageDimension>;
itk::Size<ImageDimension> size;
size.Fill(64);
auto spacing = itk::MakeFilled<ImageType::SpacingType>(1.0);
ImageType::PointType origin{};
ImageType::DirectionType direction;
direction.SetIdentity();
// Exercise basic object methods
// Done outside the helper function in the test because GCC is limited
// when calling overloaded base class functions.
using PhysicalPointImageSourceType =
itk::PhysicalPointImageSource<itk::Image<itk::Point<double, ImageDimension>, ImageDimension>>;
// Instantiate the filter
auto physicalPointImageSource = PhysicalPointImageSourceType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(physicalPointImageSource, PhysicalPointImageSource, GenerateImageSource);
double theta = 0;
if (argc >= 4)
{
theta = std::stod(argv[3]);
}
int testStatus = EXIT_SUCCESS;
if (std::stoi(argv[2]) == 0)
{
testStatus = itkPhysicalPointImageSourceTest<itk::Image<itk::Point<double, ImageDimension>, ImageDimension>>(
std::string(argv[1]), size, spacing, origin, direction);
}
else if (std::stoi(argv[2]) == 1)
{
testStatus = itkPhysicalPointImageSourceTest<itk::VectorImage<double, ImageDimension>>(
std::string(argv[1]), size, spacing, origin, direction);
}
else if (std::stoi(argv[2]) == 2)
{
spacing.Fill(1.123);
origin.Fill(-0.987);
testStatus = itkPhysicalPointImageSourceTest<itk::Image<itk::Point<float, ImageDimension>, ImageDimension>>(
std::string(argv[1]), size, spacing, origin, direction);
}
else
{
itk::SpacePrecisionType M[] = { std::cos(theta), -std::sin(theta), std::sin(theta), std::cos(theta) };
direction = vnl_matrix<itk::SpacePrecisionType>(M, 2, 2);
testStatus = itkPhysicalPointImageSourceTest<itk::VectorImage<float, ImageDimension>>(
std::string(argv[1]), size, spacing, origin, direction);
}
std::cout << "Test finished" << std::endl;
return testStatus;
}
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