[vtkusers] quadratic comparison of points in a polyData mesh, a faster way?

[Ryven]

Hi

Currently i'm doing a embedded for loop comparison of points in a mesh
(points->GetPoint(i)) to compare them for equality (i need to make a list of
identical points). I'm not necessary trying to remove identical points, so
just using the vtkClean class is no good, all i really want to do is be able
to identify these points. Currently it's pretty slow, just looping through
(it seems to act like a linkedList?).

My question is if there's a faster way of accessing data in the points array
to do comparisons?

Thanks
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