[vtkusers] lookupTable/Scalars - Possible bug?

[jarv0075]

>From vtkDataSet documentation:

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virtual void vtkDataSet::GetScalarRange  (   double    range[2]   )   
[virtual]
 

Convenience method to get the range of the scalar data (if there is any
scalar data). Returns the (min/max) range of combined point and cell data.
If there are no point or cell scalars the method will return (0,1). Note:
Update needs to be called to create the scalars. THIS METHOD IS THREAD SAFE
IF FIRST CALLED FROM A SINGLE THREAD AND THE DATASET IS NOT MODIFIED 
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The issue I'm having with this is, returning 0,1 to indicate data range
works great in all cases except when your data range actually -IS- 0,1. 
How then do you determine if there are no scalars?

Maybe a range of 0,0 would be better?


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 Timothy R. Jarvis                   
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Graduate Research Assistant 
International Neuroimaging Consortium
VA Medical Center
612-467-2619
http://www.neurovia.umn.edu
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