[Paraview] reader plugin in pvbatch

[joseph insley]

Utkarsh,

Yes, that seems to have done the trick.  Thanks a bunch.

joe.

On Sep 23, 2011, at 2:30 PM, Utkarsh Ayachit wrote:

> Joe,
> 
> I believe you're hitting the "GetRenderView()" bug that was recently
> fixed in git-master. Try obtaining the render view by using
> GetRenderViews()[0] instead. Does that help?
> 
> Utkarsh
> 
> On Wed, Sep 21, 2011 at 9:24 PM, joseph insley <insley at mcs.anl.gov> wrote:
>> Hi,
>> I have a custom ParaView reader plugin that I've written, which works as
>> expected when loaded and used through the GUI, but I'm having trouble
>> getting it to work with pvbatch.  I have tried a couple of different
>> approaches, with varying degrees of success.  The one that gets furthest is
>> this..
>> Using the GUI I load the plugin.  I'm running in client/server mode, so load
>> the plugin for both sides.  I then load a custom data file using this
>> plugin.  An unstructured grid is generated and rendered, this works as
>> expected.  I then save the state.
>> If I relaunch ParaView and the pvserver, again load the plugin on both
>> sides, and load the state file that I just saved, the data is loaded and
>> rendered.  So far, so good.
>> For pvbatch I try running with the following script:
>> ------------------
>> try: paraview.simple
>> except: from paraview.simple import *
>> servermanager.LoadPlugin('/home/insley/libMyCustomReader.so')
>> servermanager.LoadState("/home/insley/my_state_flle.pvsm")
>> curView = GetRenderView()
>> SetActiveView(curView)
>> curView.ViewSize = [1920, 1080]
>> curView.StillRender()
>> WriteImage("/home/insley/test_image.png")
>> -----------------
>> I call DebugOn() in the constructor of my class, and see lots of output from
>> pvbatch so it seems that the plugin is getting loaded correctly.  I see
>> output from the RequestInformation() in my reader class, but I do not see
>> anything from the RequestData() method.  So it appears that RequestData() is
>> never called, and the actual data is not being read from disk.  Is there
>> something additional that I need to do to cause that to be invoked?
>> After the RequestInformation() output I see a number of printouts about my
>> class being Registered and UnRegistered by other classes
>> (vtkClientServerInterpreter, vtkCompositeDataPipeline, etc) and the output
>> from my class' destructor.
>> A black image (of resolution 1920x1080) is saved to
>> /home/insley/test_image.png
>> Any insight that folks could provide would be much appreciated.
>> Thanks,
>> joe.
>> 
>> ===================================================
>> joseph a. insley
>>  insley at mcs.anl.gov
>> mathematics & computer science division
>> argonne national laboratory
>> 
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