[vtkusers] null values with vtkMarchingCubes

[Sean Ziegeler]

I don't think VTK recognizes non-data values (aka. masking or iblanking) 
as such.  The most accurate method of which I know is to use 
vtkThreshold which will convert your grid to unstructured and physically 
remove any elements that are not within the values you specify.
-Sean

scsrsao at leeds.ac.uk wrote:
> Hey all,
>   I'm using vtkMarchingCubes to generate isosurfaces, but the dataset also
> include values that represent the lack of data... is there a way I can tell the
> marching cubes algorithm what these values are so it wont take them into
> account when generating the isosurface???
> 
> thanks,
> Rodolfo
> 
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