SphinxExamples/src/Core/Common/CreateVectorImage/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 "itkVectorImage.h"
 
int
main()
{
  // Create an image
  using ImageType = itk::VectorImage<float, 2>;
 
  ImageType::IndexType start;
  start.Fill(0);
 
  ImageType::SizeType size;
  size.Fill(2);
 
  ImageType::RegionType region(start, size);
 
  auto image = ImageType::New();
  image->SetRegions(region);
  image->SetVectorLength(2);
  image->Allocate();
 
  ImageType::IndexType pixelIndex;
  pixelIndex[0] = 1;
  pixelIndex[1] = 1;
 
  ImageType::PixelType pixelValue = image->GetPixel(pixelIndex);
 
  std::cout << "pixel (1,1) = " << pixelValue << std::endl;
 
  using VariableVectorType = itk::VariableLengthVector<double>;
  VariableVectorType variableLengthVector;
  variableLengthVector.SetSize(2);
  variableLengthVector[0] = 1.1;
  variableLengthVector[1] = 2.2;
 
  image->SetPixel(pixelIndex, variableLengthVector);
 
  std::cout << "pixel (1,1) = " << pixelValue << std::endl;
 
  return EXIT_SUCCESS;
}