[vtkusers] vtkPolyDataToImageStencil using only one thread

David Gobbi david.gobbi at gmail.com
Wed Jan 26 16:25:24 EST 2011


Hi Mark,

Multithreading is just one of the several things that I plan to
eventually do in order to speed up this filter.  Unfortunately it
will be a long while before I can dedicate any time to it.

 - David


On Wed, Jan 26, 2011 at 1:57 PM, Mark Roden <mmroden at gmail.com> wrote:
> Hi all,
>
> I have a set of contours that is getting converted into a binary
> image.  This conversion process can be very lengthy, on the order of a
> minute or so for ~100 large contours drawn over ~100mb of data.  The
> process appears to be taking only one thread.
>
> Is there any way to thread this process or otherwise speed it up?
> Because the contours are all individual (and 2D on a 3D volume), it
> seems that the chunks of work for threading would be pretty well
> defined.
>
> I'm using vtk 5.6.1 over Java.
>
> Thanks!
> Mark



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