[Paraview] a two in one filter

[papa ndéné NDIAYE]

Hi all,

I have a structured DataSet and want to extract some edges according to
a given value on a point DataArray. But I want only one element added to the

pipeline browser. I think about making a filter subclassing vtkExtractEdges
and
adding a vtkTreshold attribute.
Is there a cleaner way to do it?

Regards,
PAPA
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