[vtkusers] help, about vtkMarchingCubes::SetValue

[Vivian_Z]

Hi,all
What's the value set by vtkMarchingCubes::SetValue is? Is that a kind of gray value? I want to display all the things that has the value equal and bigger than a value.What can I do ?
 
Thank you very much!
 
Regrads,
Vivian  
 
 
 
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