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- Newsgroups: comp.graphics
- Path: sparky!uunet!stanford.edu!leland.Stanford.EDU!leland.Stanford.EDU!ledwards
- From: ledwards@leland.Stanford.EDU (Laurence James Edwards)
- Subject: Re: polyhedron/polyhedron intersection
- Message-ID: <1992Nov12.091352.5323@leland.Stanford.EDU>
- Keywords: 3d graphics, intersection
- Sender: news@leland.Stanford.EDU (Mr News)
- Organization: DSG, Stanford University, CA 94305, USA
- References: <1992Nov10.221943.18792@sophia.smith.edu> <1992Nov11.040142.9570@cis.uab.edu> <2371@usna.NAVY.MIL> <1992Nov12.011952.1154@cis.uab.edu>
- Date: Thu, 12 Nov 92 09:13:52 GMT
- Lines: 20
-
- In article <1992Nov12.011952.1154@cis.uab.edu>, sloan@cis.uab.edu (Kenneth Sloan) writes:
- |> [......]
- |>
- |> Here's a nice simple question to keep everyone occupied (sit down Joe -
- |> this one's not for you).
- |>
- |> GIVEN an arbitrary, simple polyhedron, P.
- |>
- |> FIND the largest (greatest volume) convex polyhedron completely
- |> contained in P.
-
- Interesting question ... well it would seem that you'd have to split the
- polyhedra with planes containing each concave edge. It would also seem that
- to maximize the volume the splitting plane would have to contain a face.
- So split the polyhedra up into convex pieces with two splitting planes
- at each concave edge, then find the combination of convex pieces that
- maximizes the volume and is convex. Not very efficient (and maybe not even
- correct) but, as usual, this is just off the top of my head.
-
- Larry Edwards
-