[vtkusers] vtkImageData from a closed vtkPolyData

[Mathieu Coursolle]

Finally, I was not setting SetInformationInput() to  
vtkPolyDataToImageStencil.
It is now working just fine.

Thank you.
Mathieu

On 15-Apr-08, at 10:39 AM, David Gobbi wrote:

> Hi Mathieu,
>
> You can convert triangle strips into individual triangles using the
> vtkTriangleFilter.  This is not necessary with
> vtkPolyDataToImageStencil, though; it will work with triangle strips,
> too.
>
> Look at Hybrid/Testing/Tcl/TestImageStencilWithPolydata.tcl
>
>   David
>
>
>
> On Tue, Apr 15, 2008 at 10:29 AM, Mathieu Coursolle
> <mcoursolle at rogue-research.com> wrote:
>> Hi VTK users,
>>
>> I have a closed vtkPolyData (a modified sphere), which is composed of
>> triangle strips.
>> I would like to create a vtkImageData to generate a mask of the  
>> inside
>> voxels of the vtkPolyData.
>>
>> Is there an easy way to do that using vtk classes?
>>
>> I am experimenting with vtkPolyDataToImageStencil right now with no
>> success.
>>
>> Looking at the docs, it says:
>>
>> "The input polydata must contain polygons (or other 2D cells) that  
>> form a
>> 3D surface that encloses a finite volume."
>>
>> I am not sure I understand if I can use my vtkPolyData as an input  
>> then?
>> How can I transform my triangle strips polydata into polygons that  
>> will
>> allow the mask to be generated?
>>
>> Thanks!
>>
>> Mathieu
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>