[vtkusers] Simple Collision Detection between camera and object

[Chris Hughes]

Hi Guys,

I have a simple scene with a single vtkActor containing polyData and a 
vtkCamera. I am looking for a simple way to be able to tell if the 
camera (which I obviously know the position of) is touching the polygon 
mesh.Ie does the polygon mesh appear at the coordinates of the camera?

I am sure that there must be an easy solution to this, but I am not sure 
where to start!

Many thanks,

Chris

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