[vtkusers] Pipeline introspection

[Brian Rowe]

I'm considering writing some code that will be able to analyze the 
objects in an arbitrary pipeline at run time.  It will then provide 
methods that will return any given attribute from an object in the 
pipeline.  It will also be able to modify those attributes.  I intend 
this to be a "control" object for a view that will display the pipeline 
responsible for a given rendering.

My question is: What's the best way to do this(lol).  Currently the 
only/best way is to embed the python interpreter, and use it to 
"introspect" the pipeline.  This seems like quite a large amount of 
overhead to enable this feature, but I think, ultimately, it will be 
worth it.  It will definitely be worth it if there's a less expensive 
(c++ native) way of doing it.

If anyone has an insight, I'd be very happy to hear it.

Thanks,
Brian
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1.79 x 10^12 furlongs per fortnight -- it's not just a good idea, it's 
the law!