[Paraview-developers] vtkSMSelectionHelper::SubstractSelection

[Mathieu Westphal]

Hello

I'm trying to implement a substract selection method, mirroring the
MergeSelection method

Sadly i can't find a way to know how many  component each tuple of
selection contains:

For examples Indices based selection on non multiblock data will contain 2
( proc id and point id ) , and composite data selection will contain three
( piece id, proc id, cell id)

I could analyse the data to find the info, but it would be quite reondant
with NewSelectionSourceFromSelectionInternal code

Any insight ?

Mathieu Westphal
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