[vtkusers] vtkImageData - translating the origin

[emreturkoz]

I have a set of DICOM images which I read using ITK capabilities and convert
into a VTK image then visualize using vtkImageViewer2. 

I want to create a new image data and visualize these two datasets together
in one window. The problem is that the origin of the image that I created is
always located on the lower end corner of the first image. I tried
"SetOrigin" of image data but it doesn't work. What should I do to change
the origin of the image? I use the following code:

	vtkImageData *image = vtkImageData::New();
	image->SetExtent(0,60,0,60,0,7);
	image->SetOrigin(10,10,4);
	image->SetDimensions(61,61,8);
	image->SetSpacing(1,1,1);
	image->Update();
	
	int* dims = image->GetDimensions();
	for (int z = 0; z < dims[2]; z++)
	{
		for (int y = 0; y < dims[1]; y++)
		{
			for (int x = 0; x < dims[0]; x++)
			{
				double* pixel = static_cast<double*>(image->GetScalarPointer(x,y,z));
				pixel[0] = 120;
				pixel[1] = 255;
				pixel[2] = 120;
			}
		}
	}
	image->SetScalarType(4);

	vtkImageBlend *blend = vtkImageBlend::New();
	blend->AddInput(itkvtkglue->GetOutput());
	blend->AddInput(image);
	blend->PRESERVES_RANGES();
	blend->SetOpacity(0,1.0);
	blend->SetOpacity(1,.4);

	pViewerXY->SetInput(blend->GetOutput());




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