[Paraview] Losing data when clip multi-block

[Scott, W Alan]

Eric,
I was trying to replicate this bug, and cannot.   Please give me detailed instructions on how to replicate it, and I will put it in the bug tracker.  Better yet would be you putting it in the bug tracker.

I tried:
ParaView CVS trunk from late January, XP, non client/server.
Source/Box
Source/Wavelet
(Highlight Box) Filters/ Generate Ids  
(Highlight GenerateId and Wavelet) Filters/ Group Datasets
Clip
I then see the Ids points data as follows: Ids (partial)

alan

-----Original Message-----
From: paraview-bounces at paraview.org [mailto:paraview-bounces at paraview.org] On Behalf Of Eric E. Monson
Sent: Friday, February 06, 2009 7:09 AM
To: ParaView List
Subject: Re: [Paraview] Losing data when clip multi-block

Hey Utkarsh,

No, I've never seen the clip lose data on one dataset by itself.

The other interesting thing is that I can't always get this data loss to happen if the data was generated as part of a source from the Sources menu. It's much more likely to disappear when the data was generated by a filter or brought in by a reader.

For example, if you generate a Box and a Wavelet source, grouping and clipping them won't lose any data, but if you run Generate IDs on one of them, then select GenerateIds1 second before grouping, then clip, the "Ids" point data disappears...

Thanks,
-Eric


On Feb 6, 2009, at 7:37 AM, Utkarsh Ayachit wrote:

> Eric,
>
> Does the loss of arrays happen even if you clip the orginal dataset by 
> itself (without grouping it using the group filter)?
>
> Utkarsh
>
> On Wed, Feb 4, 2009 at 3:53 PM, Eric E. Monson <emonson at cs.duke.edu>
> wrote:
>> Hello,
>>
>> I'm creating a multi-block data set using the group filter and then 
>> clipping it. The results of the clip are always missing one of the 
>> scalars associated with the second data set that I highlighted before 
>> applying the group filter. This only seems to happen if one of the 
>> data sets has multiple scalars or vectors associated with it -- if 
>> they each only have one, nothing is lost in the clip. (ParaView 3.4 
>> and CVS, OS X 10.5.6 and Windows XP 32-bit, no MPI)
>>
>> I originally saw this with my own data, but I am able to easily 
>> replicate this by creating two point sources. I apply the Elevation 
>> filter to the first. Then, to the second I apply Brownian Vectors, 
>> plus a Calculator that computes the magnitude of those vectors. If I 
>> highlight Elevation and then Calculator, then Group and Clip, I lose 
>> the vector magnitude scalar at the Clip stage. If I highlight the 
>> Calculator and then the Elevation, then Group and Clip, I lose the 
>> elevation scalar.
>>
>> Please let me know if anyone has any ideas about where this could be 
>> coming from.
>>
>> Thanks a lot,
>> -Eric
>>
>> ------------------------------------------------------
>> Eric E Monson
>> Duke Visualization Technology Group
>>
>>
>> _______________________________________________
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>> ParaView at paraview.org
>> http://www.paraview.org/mailman/listinfo/paraview
>>

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