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- Path: dfw.nkn.net!usenet
- From: TheAnalyst@Nfo.Org
- Newsgroups: comp.lang.pascal.borland,comp.lang.pascal.mac,comp.lang.pascal.ansi-iso,comp.lang.pascal.misc,comp.sys.amiga.programmer,comp.graphics.algorithms,comp.os.ms-windows.programmer.graphics,comp.sys.amiga.graphics
- Subject: Re: 3d programming
- Date: Wed, 14 Feb 1996 05:01:25 GMT
- Organization: National Knowledge Network
- Message-ID: <4frlln$lp5@dfw.nkn.net>
- References: <4f3od9$2jg@zeus.tcp.co.uk> <jderrick-0502961551360001@slip037.csc.cuhk.hk> <3118310E.52F@psu.edu> <4fiuh2$qrj@fulton.cs.unc.edu> <311E38D7.71BC@psu.edu>
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- "Christopher H. Clark" <chc104@psu.edu> wrote:
-
- >Jonathan Cohen wrote:
- >>
- >> In article <3118310E.52F@psu.edu>, Christopher H. Clark <chc104@psu.edu> wrote:
- >> >Actually, you only need 2 points to define a plane: a point on the plane and
- >> >a normal vector.
- >>
- >> Sorry to quibble, but...
- >>
- >> A VECTOR IS NOT A POINT!!!!
- >>
- >> Now back to our regular program.
-
- >Points are vectors.
-
- I may not be a 3d programmer but I do know that a point is NOT a vector.
-
- Definition of Vector from my Physics book:
- VECTOR: Quantity having both magnitude (size [meaning speed]) and direction.
-
- In other words a point is not a vector and a vector is not a point. Also, two
- points do not necessarily make a vector. A vector is a point that *points*
- somewhere.
-
-
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