effectiveness of vtkCleanPolyData

[John Biddiscombe]

>for the vtkCleanPolyData filter (from 0.0 up to 1000), there are 2

You are aware that the Tolerance is specified as a fraction of the Diagonal
of the dataset?

For a diagonal of 1km and an (absolute) tolerance of 1m, tolerance should
be 0.001

use : absolutevalue/DataSet->GetLength()

Am I the only one that finds this a little tedious ?

Delaunay2D, DecimatePro, CleanPolyData all have relative tolerances, and
probably many more I can't recall.

To VTK maintainers
------------------
If I add an option to the above filters
SetToleranceToAbsolute
SetToleranceToRelative

and modify the appropriate code to account for this, any objection to me
putting this in incoming/contrib as a potential addition?

John B



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