[Paraview] pipeline??

[B.W.H. van Beest]

Hello,

How can I accomplish the following?

I have created a number of source objects (some are read
from file, e.g. an stl file), some are from other Sources.
On each of these segments in the pipeline browser
I can apply a filter that I have written, by selecting
it and applying my filter. Works ok.

But how can I apply this filter to all of them in one go?
 Initially, I thought that applying the filter to the last element
in the pipeline would be enough, it is a pipeline after all,
but that is not the case.

Do i need to specify somehow in my <filter>::DataRequest
method that it needs to get its input from all segemnts in
the pipe? But how does that work?

This is what I have in this routine now:
   // Get the input data object
   vtkPolyData* input = vtkPolyData::GetData( inputVector[0] ); assert(
input );

Kind Regards,
Bertwim