vtkPointPicker

[Sarah Graham]

I am trying to use vtkPointPicker to select points on a given actor.  I am
confused as to what initialization steps are necessary to use
vtkPointPicker.

I do the following:
	create an instance picker of vtkPointPicker
	add picker to the renderWindowInteractor using iren->SetPicker()
	and then try to do picker->GetPointId() which returns -1.

What am I missing?  Is there some sample code somewhere to do this?

Thanks,
-Sarah

------------------------
Sarah Graham
Johns Hopkins University
sarah at cs.jhu.edu
http://www.sarahgraham.org


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