SphinxExamples/src/Filtering/QuadEdgeMeshFiltering/DelaunayConformEdgeFlipping/Code.cxx

/*=========================================================================
 *
 *  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 "itkMeshFileReader.h"
#include "itkMeshFileWriter.h"
#include "itkQuadEdgeMesh.h"
 
#include "itkDelaunayConformingQuadEdgeMeshFilter.h"
 
int
main(int argc, char * argv[])
{
  // Error message and help.
  if (argc != 3)
  {
    std::cerr << "Usage:" << std::endl;
    std::cerr << argv[0] << " <InputFileName> <OutputFileName>" << std::endl;
    return EXIT_FAILURE;
  }
 
  // Basic types.
  constexpr unsigned int Dimension = 3;
  using CoordType = double;
 
  using MeshType = itk::QuadEdgeMesh<CoordType, Dimension>;
 
  // Read the file in.
  using ReaderType = itk::MeshFileReader<MeshType>;
  auto reader = ReaderType::New();
  reader->SetFileName(argv[1]);
 
  // Process the mesh.
  MeshType::Pointer mesh = reader->GetOutput();
  using DelaunayConformFilterType = itk::DelaunayConformingQuadEdgeMeshFilter<MeshType, MeshType>;
  auto filter = DelaunayConformFilterType::New();
  filter->SetInput(mesh);
 
  // Write the output.
  using WriterType = itk::MeshFileWriter<MeshType>;
  auto writer = WriterType::New();
  writer->SetInput(filter->GetOutput());
  writer->SetFileName(argv[2]);
 
  try
  {
    writer->Update();
  }
  catch (const itk::ExceptionObject & error)
  {
    std::cerr << "Error: " << error << std::endl;
    return EXIT_FAILURE;
  }
 
  std::cout << "Number of Edge flipped performed: " << filter->GetNumberOfEdgeFlips() << std::endl;
 
  return EXIT_SUCCESS;
}