[CST-2] Advanced Graphics

[Chris Applegate]

Good point, but there is no difference between the x-component of the
normal at x=1 and x=2 (which is what I was trying to get).

Which side of x=0 the point lies will change the sign of the component,
but not its magnitude.

Cheerio,

Chris
do something lastminute.work

Chris Applegate
Room X6, Corpus Christi College, Cambridge, CB2 1RH
chris@qwghlm.co.uk / www.qwghlm.co.uk / [Redacted by SRCF sysadmins on request]
ICQ 41706821          PGP key available on request



> -----Original Message-----
> From: cst-2-admin@srcf.ucam.org [mailto:cst-2-admin@srcf.ucam.org]On
> Behalf Of Chris North
> Sent: 1 June 2002 15:58
> To: cst-2@srcf.ucam.org
> Subject: RE: [CST-2] Advanced Graphics
>
>
> No, the normal DOES depend on x.  For instance, what do you
> think happens if
> the intersection point changes from x=1 to x=-1??  It will
> point in opposite
> directions with respect to x is what.  Therefore there has to
> be a dependence.
>
> HTH
>
> --
> Chris North
> This address will soon be terminated, please
> use norfus@cantab.net instead :)
>
>
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