[vtkusers] vtkXMLPUnstructuredGridWriter() howto?

[David Doria]

On Mon, Sep 20, 2010 at 3:29 PM, Bill Lorensen <bill.lorensen at gmail.com> wrote:
> This example should not have a vtkImageDataStreamer. That is used to
> break up the output of a pipeline into multiple pieces for upstream
> processing.
>
> The parallel writer breaks up an image into multiple pieces for
> writing (I think).
>
> Bill

Then I guess my only remaining question is why do you have to set the
number of pieces as well as the start and end piece? When would they
not be 0 and num-1?