Method Write

IO/Image/vtkMetaImageWriter.cxx:71–179

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void vtkMetaImageWriter::Write()
{
  this->SetErrorCode(vtkErrorCode::NoError);

  vtkDemandDrivenPipeline::SafeDownCast(this->GetInputExecutive(0, 0))->UpdateInformation();

  // Error checking
  if (this->GetInput() == nullptr)
  {
    vtkErrorMacro(<< "Write:Please specify an input!");
    return;
  }

  if (!this->MHDFileName)
  {
    vtkErrorMacro("Output file name not specified");
    return;
  }

  int nDims = 3;
  int* ext = this->GetInputInformation(0, 0)->Get(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT());
  if (ext[4] == ext[5])
  {
    nDims = 2;
    if (ext[2] == ext[3])
    {
      nDims = 1;
    }
  }

  this->GetInputAlgorithm()->UpdateExtent(ext);

  double origin[3];
  double spacing[3];
  this->GetInput()->GetOrigin(origin);
  this->GetInput()->GetSpacing(spacing);

  int dimSize[3];
  dimSize[0] = ext[1] - ext[0] + 1;
  dimSize[1] = ext[3] - ext[2] + 1;
  dimSize[2] = ext[5] - ext[4] + 1;

  vtkmetaio::MET_ValueEnumType elementType;

  int scalarType = this->GetInput()->GetScalarType();
  switch (scalarType)
  {
    case VTK_CHAR:
      elementType = vtkmetaio::MET_CHAR;
      break;
    case VTK_SIGNED_CHAR:
      elementType = vtkmetaio::MET_CHAR;
      break;
    case VTK_UNSIGNED_CHAR:
      elementType = vtkmetaio::MET_UCHAR;
      break;
    case VTK_SHORT:
      elementType = vtkmetaio::MET_SHORT;