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Keywords: solid angle bounding box intersected volumes cone annuli
Forum: Geometry
Re: Question Another4JohnAllison: bounding boxes and solid angles (Blair Smith)
Date: 17 Jun, 2005
From: John Allison <John Allison>

It's worth a try with Geant4 methods. Starting from the first cone you could make successive intersections with other cones. I think CalculateExtent (or GetExtent, whose default implementation uses CalculateExtent) should work, even if the volumes are disconnected. The result should be in the frame of the first solid.

I can imagine how to start. Just instantiate the cones (G4Polycone) and intersections (G4IntersectionSolid) and GetExtent of the final one. Sounds straightforward and therefore worth a try. Try with some simple cases. If you can't see exactly how to do this, get back to me.

No guarantees. Let me know how you get on.

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