newImage = vtkImageData::New();
newImage->SetScalarType(type);
newImage->SetSpacing(spacing);
newImage->SetDimensions(dimensions);
newImage->AllocateScalars();
newImage->Update();
newImage = vtkImageData::New();
newImage->SetScalarType(type);
newImage->SetSpacing(spacing);
newImage->SetDimensions(dimensions);
newImage->AllocateScalars();
newImage->Update();