[vtkusers] Isolines : retrieve geometry after filtering

[Pascal Guehl]

Hello,

I don't use the VTK graphics pipeline to draw primitives, it's only for 
filtering data. After a vtkContourFilter, how can I retrieve each 
"complete" isoline geometry, not just segments ?
For instance, with one isovalue generated, I would like to have only one 
"poly line" for the isoline, but the result is a set of segments...
Is there a mean in VTK to retrieve those geometries ?

Pascal