[Paraview] reader plugin in pvbatch

[Utkarsh Ayachit]

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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