[vtkusers] vtkStructuredGrid & blanking

[Berk Geveci]

> 1) Adding the blanking array to the dataset as a PointData Array, as well as
> the "Blanking" array. This got the cross-sections working.

Are you sure this is needed? It shouldn't be. Can you post some example code?

> 2) Switching from vtkDAtaSetSurfaceFilter to
> vtkSTructuredGridGeometryFilter, which gets the surface extraction working.

It is possible that vtkDataSetSurfaceFilter ignores the blanking
array. I am guessing that is the case.

-berk

> On Fri, Jun 27, 2008 at 12:53 PM, Randall Hand <randall.hand at gmail.com>
> wrote:
>>
>> Searching all of Mantis for "blank" doesn't come up with anything
>> relevant.
>>
>> ----------------
>> Listening to: Squirrel Nut Zippers - My Drag
>> posted with FoxyTunes
>>
>> ----------------------------------------
>> Randall Hand
>> Visualization Scientist
>> ERDC MSRC-ITL
>>
>> On Fri, Jun 27, 2008 at 12:49 PM, Kent Eschenberg <eschenbe at psc.edu>
>> wrote:
>>>
>>> Have you looked for a bug? It could be under VTK or ParaView. In ParaView
>>> 2.6.1 I think the bug was in vtkDataSetSurfaceFilter.cxx.
>>>
>>> Kent
>>> Pittsburgh Supercomputing Center
>>>
>>> Randall Hand wrote:
>>>>
>>>> I'm building a vtkStructuredGrid with a single array in it
>>>> (Temperature), and using the "Mask" value (4095) to set the blanking
>>>> property.  It doesn't seem to do anything tho?  Once I've built the dataset,
>>>> cross sections and surface extractions both show all the 4095 values.  Is
>>>> there some trick to getting this to work?
>>
>
>
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