[vtkusers] Contouring through constant value areas of dataset

[Gerrick Bivins]

Hi All,
When generating contour values (isosurfaces) with vtkContourFilter, I’ve
noticed that areas in the dataset with constant values ( probably not the
correct terminology here) don't produce contours.

For example, here is the original multiblock dataset in Paraview with areas
of constant value:
http://www.nabble.com/file/p19338704/constantValues-surface.png 

Here is the contouring with about 100 values:
http://www.nabble.com/file/p19338704/constantValues-100-contours.png 

Here is the contouring with ALOT of values:
http://www.nabble.com/file/p19338704/constantValues-many-contours.png 

Can someone explain why the square area(bottom left of the elliptical
dataset) and triangle area (bottom right) don't produce any contours? The
only similarities are that the values in those areas are constant in those
areas.
Gerrick 


-- 
View this message in context: http://www.nabble.com/Contouring-through-constant-value-areas-of-dataset-tp19338704p19338704.html
Sent from the VTK - Users mailing list archive at Nabble.com.