Re: Proposal for the geometric engine, RFC

[Nils Barth <nbarth@fas.harvard.edu>]

Thus spake Dylan Paul Thurston:
> On Mon, Mar 13, 2000 at 08:56:29PM +0800, Hilaire Fernandes wrote:
> > 
> > The geomtric engine will go into deep change in the next month, I
> > enclose there what i'm going to change, If you have suggestion you
> > want to appear, this is the good time to tell me.
> 
> Another thought...
> 
> How about including inversion in a circle in the "Transformations"
> menu?  One thing to think about is that the inverse of a circle can be
> either a circle or a line; there are numerical stability issues to
> think about.

...and to be correct, if the inverse of a circle is a line, it should
include the corresponding point at infinity ;-)

-- 
  -nils