[vtkusers] pipeline advice needed to model unstructured pressure data

[Paul Tait]

> Hi
>
> I'm designing a VTK app to display pressure data over time in oil wells
>
> The data I have for each point is  x,y,z  and also for each point an array
> of pressure data at monthly intervals over several years. The xyz data is
> unstructured.
>
> I'm thinking of displaying the wells as tubes and having a flat plane
which
> is contoured according to pressure. I'd like to be able to use the
keyboard or
> mouse to cycle between the various periods to allow the user to see how
the
> pressure changes over time.
>
> I'm currently trying to get the following filter to work
>
> vtkPolyData -> vtkShepardMethod -> vtkImageToPolyDataFilter ->
> vtkBandedPolyDataContourFilter -> vtkPolyDataMapper
>
> I'm having difficulty understanding the vtkImageToPolyDataFilter step
>
> Am I even in the right ball park
>
> Please be harsh if necessary
>
> Thanks Paul Tait
>