[Paraview-developers] Parsing UndoSets With Python

[Utkarsh Ayachit]

Claurissa,

Any pqUndoElements are created for GUI related operations, like
splitting of views or creation of internal helper proxies. They are
needed only when trying to redo from the GUI. If you are trying to
redo from Python that doesn't have a GUI attached to it, you should be
able to ignore such undo elements. If there's a specific case that
doesn't work, can you provide the xml undo-state that fails? It may be
easier to diagnose.

Utkarsh

On Tue, Jul 6, 2010 at 2:24 PM, Claurissa J. Tuttle <tuttle at lanl.gov> wrote:
> Hi,
>
> I would like to take data that was generated by the VisTrailsParaview
> plugin and load it back into Paraview without using the gui.  The plugin
> uses a pqUndoStack as well as some pq...UndoElements.  Since I'm writing
> in Python, I tried using the vtkSMUndoStack.  Unfortunately, after some of
> the elements are loaded into UndoSets, Redo does not always execute
> successfully.
>
> There are a few of options:
> 1. Figure out how to access the pq classes from python
> 2. Add additional code to work around the problem created by not having
> the pq classes
> 3. Parse the file and load it in some other way
>
> Does anyone have any suggestions?  Is there an easy way to get the pq
> classes wrapped in python so I can access them?
>
> Thanks,
> Claurissa
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