Re: GP: Flipping a point across a line: The answer

[Eudoxus3 <Eudoxus@freeuk.com>]

On Tue 07 Sep, Don Williamson wrote:
> If you implemented the algorithm I suggested above in all 2/3 axes
> (depending upon what your needs are) you will have noticed that there is no
> need for any reflection equations whatsoever, it all simply works out
> because mechanics is cool like that. :0)
Sorry, Don, what algorithm was that?


Regards,

Matt. W.
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