[vtkusers] Defining the Box and getting points inside the box

[mahendra]

OK. so now i could able to defined the vtkBoxWidget and place it
interactively wherever i want. 

<http://vtk.1045678.n5.nabble.com/file/n5724358/1.png> 

Now task is to get the points inside the box. As suggested, i start looking
for vtkExtractPolyDataGeometry class. It requires me to defined the implicit
functions, i was wondering how can i set the vtkBoxWidgte as implicit
function?. also do i need to use the vtkPolyDataclipper? because most of the
example seems to using the vtkClipingFunction!

Any suggetions?



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