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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 "itkLabelObject.h"
#include "itkTestingMacros.h"
int
itkLabelObjectTest(int argc, char * argv[])
{
if (argc != 1)
{
std::cerr << "usage: " << itkNameOfTestExecutableMacro(argv) << "" << std::endl;
return EXIT_FAILURE;
}
constexpr int dim = 3;
using LabelObjectType = itk::LabelObject<unsigned long, dim>;
using IndexType = LabelObjectType::IndexType;
// testing AddLine(), GetNumberOfLines(), GetLineContainer() const and Optimize()
auto lo = LabelObjectType::New();
IndexType idx;
idx[0] = 1;
idx[1] = 20;
idx[2] = 30;
lo->AddLine(idx, 10);
idx[0] = 5;
lo->AddLine(idx, 10);
idx[0] = 5;
idx[1] = 0;
idx[2] = 0;
lo->AddLine(idx, 10);
idx[0] = 5;
idx[1] = 0;
idx[2] = 1;
lo->AddLine(idx, 10);
idx[0] = 5;
idx[1] = 1;
idx[2] = 0;
lo->AddLine(idx, 10);
idx[0] = 0;
idx[1] = 1;
idx[2] = 1;
lo->AddLine(idx, 10);
idx[0] = 10;
idx[1] = 1;
idx[2] = 1;
// add this line with an itk::LabelLineObject to test the AddLine(LabelObjectLine) method
lo->AddLine(LabelObjectType::LineType(idx, 1));
lo->Optimize();
// the expected result after Optimize()
auto ref = LabelObjectType::New();
idx[0] = 5;
idx[1] = 0;
idx[2] = 0;
ref->AddLine(idx, 10);
idx[0] = 5;
idx[1] = 1;
idx[2] = 0;
ref->AddLine(idx, 10);
idx[0] = 5;
idx[1] = 0;
idx[2] = 1;
ref->AddLine(idx, 10);
idx[0] = 0;
idx[1] = 1;
idx[2] = 1;
ref->AddLine(idx, 11);
idx[0] = 1;
idx[1] = 20;
idx[2] = 30;
ref->AddLine(idx, 14);
// compare the result
if (lo->GetNumberOfLines() != ref->GetNumberOfLines())
{
std::cerr << "number of lines is different!" << std::endl;
return EXIT_FAILURE;
}
using IteratorType = LabelObjectType::ConstLineIterator;
IteratorType it1;
it1 = IteratorType(ref);
IteratorType it2(lo);
lo->Print(std::cerr);
while (!it1.IsAtEnd())
{
std::cout << it1.GetLine().GetIndex() << '-' << it1.GetLine().GetLength() << " ";
std::cout << it2.GetLine().GetIndex() << '-' << it2.GetLine().GetLength();
std::cout << std::endl;
if (it1.GetLine().GetIndex() != it2.GetLine().GetIndex() || it1.GetLine().GetLength() != it2.GetLine().GetLength())
{
std::cerr << "Line mismatch." << std::endl;
return EXIT_FAILURE;
}
// test both versions of the iterator
it1++;
++it2;
}
if (!it2.IsAtEnd())
{
std::cerr << "it2 not at end" << std::endl;
return EXIT_FAILURE;
}
// testing AddIndex(), GetIndex() and HasIndex()
lo = LabelObjectType::New();
std::vector<IndexType> idxs;
// one isolated pixel
idx[0] = 0;
idx[1] = 0;
idx[2] = 0;
lo->AddIndex(idx);
idxs.push_back(idx);
// and two consecutive ones
idx[0] = 1;
idx[1] = 2;
idx[2] = 3;
lo->AddIndex(idx);
idxs.push_back(idx);
idx[0] = 2;
idx[1] = 2;
idx[2] = 3;
lo->AddIndex(idx);
idxs.push_back(idx);
// should produce 2 lines
if (lo->GetNumberOfLines() != 2)
{
std::cerr << "number of lines should be 2!" << std::endl;
return EXIT_FAILURE;
}
// should produce 3 pixels
if (lo->Size() != 3)
{
std::cerr << "size should be 3!" << std::endl;
return EXIT_FAILURE;
}
for (unsigned int i = 0; i < lo->Size(); ++i)
{
if (lo->GetIndex(i) != idxs[i])
{
std::cerr << "Wrong index returned by GetIndex(" << i << "): " << lo->GetIndex(i) << ". " << idxs[i]
<< " was expected." << std::endl;
return EXIT_FAILURE;
}
if (!lo->HasIndex(idxs[i]))
{
std::cerr << "label object should have the index " << idxs[i] << '!' << std::endl;
return EXIT_FAILURE;
}
}
// test with an index not there
idx[0] = 10;
idx[1] = 10;
idx[2] = 10;
if (lo->HasIndex(idx))
{
std::cerr << "label object shouldn't have the index " << idx << '!' << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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