home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.math
- Path: sparky!uunet!sun-barr!apple!news.oc.com!convex!dodson
- From: Dave Dodson <dodson@convex.COM>
- Subject: Re: Problem: find smallest box around points in 3D
- Message-ID: <1992Jul24.220443.16769@news.eng.convex.com>
- Originator: dodson@bach.convex.com
- Sender: usenet@news.eng.convex.com (news access account)
- Nntp-Posting-Host: bach.convex.com
- Reply-To: dodson@convex.COM (Dave Dodson)
- Organization: Engineering, CONVEX Computer Corp., Richardson, Tx., USA
- References: <BrvsH1.Myp@iai.kfk.de>
- Date: Fri, 24 Jul 1992 22:04:43 GMT
- X-Disclaimer: This message was written by a user at CONVEX Computer
- Corp. The opinions expressed are those of the user and
- not necessarily those of CONVEX.
- Lines: 17
-
- In article <BrvsH1.Myp@iai.kfk.de> harry@issun1.kfk.de writes:
- >I have some points in 3D space and I want to find the smallest rectangular box
- >which encloses these points. The orientation of the box in 3D is arbitrary (otherwise
- >the problem would be trivial).
- >Any hints, references, algorithms, code???
- >Thank you!
-
- Isn't this just an optimization problem?
-
- You need a specific definition of what "the smallest rectangular box" is.
- E.g., smallest in volume, total edge length, surface area, or combined length
- and girth. Then minimize the box size with respect to the 3 rotation angles.
-
- ----------------------------------------------------------------------
-
- Dave Dodson dodson@convex.COM
- Convex Computer Corporation Richardson, Texas (214) 497-4234
-