[vtkusers] VTKProbeFilter

[bryan cole]

How about using 'vtkGaussianSplatter' to splat the point values onto a
structured-points volume. You can then probe the volume along your line.

vtkTubeFilter would be a good way to create a crop your points dataset
to a smaller subset around your line.

Another method would be to use vtkDalaunay3D to create cells between
your points. Then your probe would intersect the cells and work as
intended. vtkDalaunay3D might be a bit slow however. You would
definately need to crop your dataset around the line.

Bryan

On Thu, 2002-11-07 at 13:16, Louis-Jacques Lalonde wrote:
> Hi !
>  
> I'm using vtkProbefilter with a polydata of points as a source and a
> line as the input.  Like someone said here
>  
> http://public.kitware.com/pipermail/vtkusers/2000-October/004532.html
>  
> the output of the vtkProbefilter is zero or black in RGB if you use a
> points-only data set.  Someone knows an easy way to solve this ?  I have
> large polydata, around 500-600k points  and I have 200-300 points on my
> line that I want to interpolate.  I need to do some kind if
> interpolation for the points I choose on my line.
>  I don't want to choose an interpolation method that takes too long.  It
> is possible for example to get N scalairs value in my polydata  around
> the point where I am (in the line) and do a mean of these value ?  How
> can I do that without searching in all my polydata ?
>  
> If anyone modified the vtkprobefilter code do solve this problem, I
> would be very happy to contact him/her.
>  
> Thanks !
>  
> Louis-Jacques
-- 
Bryan Cole
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