[Paraview] [Xdmf] Xdmf time series loads as Multi-block Dataset

[Renato N. Elias]

Here it goes http://www.nacad.ufrj.br/~rnelias/transfer/xdfm-test.zip 
nothing special, just some time steps for a cavity flow run.

Renato.

John Biddiscombe wrote:
> at 1390 of xdmf reader
>         // we will not output a TemporalDataset, but use this as a 
> flag for later
>         // Jerry Change Me
>         sub->vtkType = VTK_TEMPORAL_DATA_SET;
> the sub->vtkType line was commented out. Putting it back in fixes my 
> problem, but could Renato send me a small example of (or link to) his 
> grid of spatial/temporal mixmatch combination stuff so I can test the 
> other kind. If large, email me off lists for ftp info.
>
> thanks
>
> JB
>
>> Eric
>>
>> I just tried xdmf for the first time in a couple of weeks an yes. It's 
>> completely stuffed. I get a multiblock dataset with 800 blocks, each 
>> being one timestep - instead of a single (or possibly multi-block) 
>> dataset with time varying stuff.
>>
>> I Can see looking at Jerry's changes on immediate probable cause, but 
>> I'd better read through the email he sent a few days/week back and 
>> review the changes. I see what Jerry has tried to do - create a 
>> multiblock xdmf structure and just fetch the correct grid when you 
>> request a timestep - thus giving us what we want. But there's a flaw in 
>> the logic when the actual output dataset is generated - so that it 
>> creates a multiblock one instead of the type givenm by the Nth (=time) 
>> dataset inside it when we are fetching a time step which is not composite.
>>
>> I need this to work, so I'll be looking at it soon. Ig Jerry reads this 
>> before I fix it, then feel free to step in with the correct patch :)
>>
>> JB
>>   
>>> Hey all,
>>>
>>> Maybe I'm behind on my Xdmf XML format again, but my files that a  
>>> month or two ago loaded a time series of unstructured grids now loads  
>>> into ParaView CVS as a Multi-block Dataset with one block for each  
>>> time step at each time point.
>>>
>>> Let's say I have 1200 Polyvertex time steps in my file. I can (slowly)  
>>> step through the animation of my grid, but at each time point the  
>>> progress bar is cycling through a bunch of work, and each time point  
>>> lists (in the Information tab Data Hierarchy pane) a Multi-block  
>>> Dataset made up of 1200 Unstructured Grids. Clicking on each of these  
>>> blocks reveals that only the "current" time step block has Data Arrays  
>>> associated with the grid. So, at each time step of the animation, the  
>>> process seems very slow because 1200 blocks are being loaded, only one  
>>> of which actually has real data in it. (The Time pane at the bottom of  
>>> the Information tab always lists the correct time indices and values  
>>> for the whole series.)
>>>
>>> Maybe this is just a change in the way time series are dealt with, but  
>>> it is much slower with my data sets, and it made more sense to me to  
>>> have each time step able to be represented as a simple grid, if  
>>> desired. (I have been using a self-modified vtkXdmfReader.cxx file for  
>>> a while, so I'm not sure when this multi-block issue would have  
>>> appeared.)
>>>
>>> Thanks,
>>> -Eric
>>>
>>> ------------------------------------------------------
>>> Eric E Monson
>>> Duke Visualization Technology Group
>>>
>>>
>>>
>>> _______________________________________________
>>> Xdmf mailing list
>>> Xdmf at lists.kitware.com
>>> https://www.kitware.com/cgi-bin/mailman/listinfo/xdmf
>>>   
>>>     
>>
>>
>>   
>
>
> -- 
> John Biddiscombe,                            email:biddisco @ cscs.ch
> http://www.cscs.ch/
> CSCS, Swiss National Supercomputing Centre  | Tel:  +41 (91) 610.82.07
> Via Cantonale, 6928 Manno, Switzerland      | Fax:  +41 (91) 610.82.82