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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 <iostream>
#include "itkLabelMap.h"
#include "itkLabelObject.h"
#include "itkLabelMapFilter.h"
#include "itkTestingMacros.h"
int
itkLabelMapFilterTest(int argc, char * argv[])
{
if (argc != 1)
{
std::cerr << "usage: " << itkNameOfTestExecutableMacro(argv) << "" << std::endl;
return EXIT_FAILURE;
}
constexpr int dim = 2;
using LabelObjectType = itk::LabelObject<unsigned long, dim>;
using IndexType = LabelObjectType::IndexType;
using LabelMapType = itk::LabelMap<LabelObjectType>;
using RegionType = LabelMapType::RegionType;
using SizeType = LabelMapType::SizeType;
using ImageType = itk::Image<unsigned char, dim>;
using LabelMapFilterType = itk::LabelMapFilter<LabelMapType, ImageType>;
auto map = LabelMapType::New();
SizeType sizeIn;
sizeIn[0] = 11;
sizeIn[1] = 11;
map->SetRegions(sizeIn);
map->Allocate();
IndexType idxHorizontal;
idxHorizontal[0] = 0;
idxHorizontal[1] = 5;
map->SetLine(idxHorizontal, 11, 1);
IndexType idxVertical;
idxVertical[0] = 5;
for (int ctr = 0; ctr < 5; ++ctr)
{
idxVertical[1] = ctr;
map->SetPixel(idxVertical, 1);
}
for (int ctr = 6; ctr < 11; ++ctr)
{
idxVertical[1] = ctr;
map->SetPixel(idxVertical, 1);
}
auto conversion = LabelMapFilterType::New();
conversion->SetInput(map);
conversion->GenerateInputRequestedRegion();
conversion->EnlargeOutputRequestedRegion(nullptr);
conversion->Update();
RegionType region;
RegionType regionIn;
regionIn.SetSize(sizeIn);
region = conversion->GetOutput()->GetRequestedRegion();
itkAssertOrThrowMacro((regionIn == region), "LabelMapFilter error.");
conversion->Print(std::cout);
return EXIT_SUCCESS;
}
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