Method GetImage

IO/Image/vtkVolume16Reader.cxx:211–254

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

//------------------------------------------------------------------------------
vtkImageData* vtkVolume16Reader::GetImage(int ImageNumber)
{
  vtkUnsignedShortArray* newScalars;
  int* dim;
  int dimensions[3];
  vtkImageData* result;

  // Validate instance variables
  if (this->FilePrefix == nullptr)
  {
    vtkErrorMacro(<< "FilePrefix is nullptr");
    return nullptr;
  }

  if (this->HeaderSize < 0)
  {
    vtkErrorMacro(<< "HeaderSize " << this->HeaderSize << " must be >= 0");
    return nullptr;
  }

  dim = this->DataDimensions;

  if (dim[0] <= 0 || dim[1] <= 0)
  {
    vtkErrorMacro(<< "x, y dimensions " << dim[0] << ", " << dim[1] << "must be greater than 0.");
    return nullptr;
  }

  result = vtkImageData::New();
  newScalars = vtkUnsignedShortArray::New();
  this->ReadImage(ImageNumber, newScalars);
  dimensions[0] = dim[0];
  dimensions[1] = dim[1];
  dimensions[2] = 1;
  result->SetDimensions(dimensions);
  result->SetSpacing(this->DataSpacing);
  result->SetOrigin(this->DataOrigin);
  if (newScalars)
  {
    result->GetPointData()->SetScalars(newScalars);
    newScalars->Delete();
  }
  return result;
}

//------------------------------------------------------------------------------
// Read a slice of volume data.