[Paraview] pvbatch + LoadState('..') +XDMF = empty image

[Jens]

Hi Utkarsh,

The problem is related to bug 10775
(http://public.kitware.com/Bug/view.php?id=10775) and hyperslabs in XDMF.
I attached an example which should reproduce the problems I discribe now:

hyperslab on its own:
pv 3.6.2: loading test.xmf->dataset u_without_hyperslab works fine
pv 3.8.0: loading test.xmf->dataset u_without_hyperslab works fine
pv 3.6.2: loading test.xmf->dataset u_with_hyperslab works fine
=>!! pv 3.8.0: loading test.xmf->dataset u_with_hyperslab _segfaults_

hyperslab and "Load/Save State":
pv 3.6.2: loading test_nohyper.pvsm works fine (contour is visible)
pv 3.8.0: loading test_nohyper.pvsm works fine (contour is visible)
=>! pv 3.6.2: loading test_withhyper.pvsm fails (contour _NOT_ visible)
=>!! pv 3.8.0: loading test_withhyper.pvsm _segfaults_

XDMF+hyperslab never worked with "Load State". pv 3.6.2 loads the
pipeline but does not load the hyperslab-dataset. pv 3.8.0 segfaults as
it does loading hyperslab-datasets anyway.

I hope you can reproduce the behaviour (the bugreport also has a
backtrace attached).
It would be great, if this problem could be fixed. But I am happy now to
know its the hyperslab .. that's the first step to a bugfix :)

Greetings
Jens

Utkarsh Ayachit schrieb:
> Jens,
> 
> It would be great if you could post a state to reproduce this issue.
> 
> Utkarsh
> 
> On Fri, May 28, 2010 at 1:31 PM, Jens <jens-devel at gmx.de> wrote:
>> Hi Utkarsh,
>>
>> if I reload the state in paraview-gui it does not refresh ether.
>> I have to walk through the pipeline (bottom to top) and call "Apply".
>>
>> Greetings
>> Jens
>>
>>
>> Utkarsh Ayachit schrieb:
>>> Jens,
>>>
>>> Is the non-refreshed part of the pipeline visible in the view?
>>>
>>> Utkarsh
>>>
>>> On Fri, May 28, 2010 at 3:23 AM, Jens <jens-devel at gmx.de> wrote:
>>>> Hi Utkarsh,
>>>>
>>>> thank you for that hint.
>>>> I can see the bounding box now ...
>>>>
>>>> But somehow it does not refresh the whole pipeline.
>>>> What do I have to do, that all parts of pipeline are updated before I
>>>> write the image. Any idea?
>>>>
>>>> Greetings
>>>> Jens
>>>>
>>>> Utkarsh Ayachit schrieb:
>>>>> Jens
>>>>>
>>>>> Here's an updated script:
>>>>> =================
>>>>> from paraview.simple import *
>>>>>
>>>>> # reload state
>>>>> servermanager.LoadState('/tmp/state.pvsm')
>>>>>
>>>>> view = GetRenderViews()[0]
>>>>>
>>>>> ## render png
>>>>> view.ResetCamera()
>>>>> view.StillRender()
>>>>> view.WriteImage( "/tmp/Test1.png", "vtkPNGWriter" )
>>>>> ==================
>>>>>
>>>>>
>>>>> The problem was that your script was creating a new view, and not
>>>>> using the view created by the state file.
>>>>>
>>>>> Utkarsh
>>>>>
>>>>> On Thu, May 27, 2010 at 2:56 PM, Jens <jens-devel at gmx.de> wrote:
>>>>>> Hi,
>>>>>>
>>>>>> I try to use pvbatch to render a whole bunch of screenshots using a
>>>>>> script. pvbatch works fine if I simply create a sphere and write that
>>>>>> image to disk.
>>>>>>
>>>>>> But loading a predefined pipeline using LoadState('pstate.pvsm') which
>>>>>> includes a datset in XDMF file format fails.
>>>>>>
>>>>>> Any idea what I am doing wrong?
>>>>>> This seems to be related to bug 6495
>>>>>> (http://www.itk.org/Bug/view.php?id=6495&nbn=2), but the suggested
>>>>>> solution cannot be used with LoadState(..).
>>>>>>
>>>>>> Greetings
>>>>>> Jens
>>>>>>
>>>>>> ====================
>>>>>> from paraview import servermanager
>>>>>>
>>>>>> # connect to pvserver
>>>>>> servermanager.Connect()
>>>>>>
>>>>>> # reload state
>>>>>> #r = servermanager.LoadState('paraview_state.pvsm')
>>>>>>
>>>>>> # render png
>>>>>> view = servermanager.CreateRenderView()
>>>>>> view.ResetCamera()
>>>>>> view.StillRender()
>>>>>> view.WriteImage( "Test1.png", "vtkPNGWriter" )
>>>>>> ====================
>>>>>> _______________________________________________
>>>>>> Powered by www.kitware.com
>>>>>>
>>>>>> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>>>>>>
>>>>>> Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView
>>>>>>
>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>> http://www.paraview.org/mailman/listinfo/paraview
>>>>>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView
>>
>> Follow this link to subscribe/unsubscribe:
>> http://www.paraview.org/mailman/listinfo/paraview
>>
> 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: XDMF_hyperslab_tests.tar.gz
Type: application/x-gzip
Size: 14286 bytes
Desc: not available
URL: <http://www.paraview.org/pipermail/paraview/attachments/20100528/b285bac0/attachment-0001.bin>