[vtkusers] vtkContourFilter and vectors?

[Charles Boivin]

Hello all,

Is it possible to create contours using vtkContourFilter on vectors? I
would like to be able to contour either the magnitude, or individual
components of a vector. I know vtkLookupTable allows one to map colors
based on vector magnitude or components... but I would like to get
contours as well. 

In the event that this is not possible, are there filters that can
either extract a component of a vector or its magnitude so that I could
feed that to the contour filter? 

Thank you in advance,

Charles Boivin