[vtkusers] Extract a tube of data from DICOM series data

[David Gobbi]

Hi Vincent,

This can be done with vtkROIStencilSource, which can be used
to create a cylindrical region for use with vtkImageStencil.  The
code would be something like this:

stencilSource = vtkROIStencilSource()
stencilSource.SetShapeToCylinderZ()
stencilSource.SetBounds(upstream.GetOutput().GetBounds())
stencilSource.SetInformationInput(upstream.GetOutput())
stencilFilter = vtkImageStencil()
stencilFilter.SetInputConnection(upstream.GetOutputPort())
stencilFilter.SetStencilConnection(stencilSource.GetOutputPort())

 - David


On Wed, Nov 5, 2014 at 9:48 AM, Vincent32160 <vsh at magellium.fr> wrote:

> Hello,
> I need to extract from DICOM series images (CTScan cylinder) a tube of data
> of a specific radius. I had good result using vtkExtractVOI but instead of
> a
> rectangular volume, I would like to extract a tube (meaning a cylinder
> without filling). Thanks for your help.
>
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