[vtkusers] A method to get limit values

[Marcio Antonio Mathias (EDB)]

Hi,
 
I am using vtkStructuredPointsReader to capture a data point array to be evaluated by its isosurfaces (by using vtkContourFilter).I did not find any method to extract the minimum and maximum values from the data set.
Has someone a sugestion how to do it?
 
Regards, Marcio.
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