[vtkusers] mesh properties from a camera view

[David Doria]

On Fri, Aug 9, 2013 at 5:33 PM, picci <piccima at gmail.com> wrote:

> Hello All,
> I have the following problem.
> I need to calculate and possibly save the information about a 3D object
> from a determined view.
> For example if I have a cube I can get the QualityMesure of the mesh on
> the entire object.
> I want to calculate the QualityMeasure just on the visible part of the
> object, from that camera position.
> Then I'd like to save the visible part of 3D object, but not as image,
> instead as PolyData so I can still get the QualityMeasure.
> Or as MetaImage, but I don't know if I can still get the QualityMeasure
> from a MeatImage format.
>
> I'm new with vtk and I still have some problem to use all the data
> format of the library.
>
> Thank you very much for your help
>
> I'd like to know how can be your approach at this problem
>
> Marco
>

Give this a try:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/Filtering/ExtractVisibleCells

David
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