[Paraview] PV 3.6.2 and VisIt Plugin: crash when loading state with Tecplot files

[burlen]

Hi Richard and Dave,

I think that the way the VisIt plugin currently communicates information 
between client and server is not going to work with state.

The way it is now the plugin repeatedly sends variable length vectors of 
array,block,material ids,, etc one array for each mesh. Each of these 
might have a different size depending on the user's selections. In order 
to work around the fact that PV sm vector props don't support variable 
length vectors it also expects the array of mesh ids to be sent first, 
from this it sizes the other arrays to fit what will be incoming.

One solution would be to serialize the users selections in a single 
string, using sm string vector property to send server side. That would 
work with state. Otherwise I'm afraid your going to have to do some 
heavy sm programming.

I regret the way I did that, if it's helpful I'll volunteer to fix it.

Burlen


Dave Partyka wrote:
> Hi Richard, please do. I will try running your steps with a debug 
> build and see if I can track down the crash.
>
> Thanks for tracking this down!
>
> On Tue, Jan 26, 2010 at 7:25 AM, Richard GRENON 
> <richard.grenon at onera.fr <mailto:richard.grenon at onera.fr>> wrote:
>
>     Hello.
>
>     I have made an additional test: grouping all tecplot files in a
>     same dataset before any other operation allows to use the saved
>     state file.
>
>     Test 1: the simple pipeline that cannot be used as saved state:
>     - open Tecplot File 1
>           |
>           extract subset 1
>     - open Tecplot File 2
>           |
>           extract subset 2
>     - group subset 1 and subset 2 in new dataset 1
>     - coloring the dataset 1
>
>     Saving state of this pipeline, loading the pvsm file crashes PV.
>
>     Test 2: the more complex pipeline that can be used as a saved state:
>     - Open Tecplot File 1
>     - Open Tecplot File 2
>     - group loaded Tecplot Files 1 and 2 in new dataset 1
>      |
>      extract block 1 from dataset 1 (content of Tecplot file 1)
>      extract subset 1 from bloc 1
>      |
>      extract block 2 from dataset 1 (content of Tecplot file 2)
>      extract subset 2 from block 2
>     - group subset 1 and subset 2 in dataset 2
>     - coloring the dataset 2
>
>     Saving state of this pipeline, the pvsm file can be used.
>     Note: After loading the pvsm file, you must go on the reader of
>     each tecplot file, select the arrays (unselected by default), then
>     click apply.
>
>     Of course, I can attach the two corresponding pvsm files if it may
>     help.
>
>
>     Best regards
>
>     -- 
>     Richard GRENON
>     ONERA
>     Departement d'Aerodynamique Appliquee - DAAP/ACI
>     8 rue des Vertugadins
>     92190 MEUDON - FRANCE
>     phone : +33 1 46 73 42 17
>     fax   : +33 1 46 73 41 46
>     mailto:Richard.Grenon at onera.fr <mailto:Richard.Grenon at onera.fr>
>     http://www.onera.fr
>
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