[cairo] Updated bibliography for cairo

[Federico Mena Quintero]

El jue, 30-11-2006 a las 08:30 -0800, Carl Worth escribió:

> Thanks. In the original email I wrote I had an introductory paragraph
> saying something along the lines of:
> 
> 	The proper introduction is really a good textbook on
> 	computational geometry.
> 
> But I also didn't know exactly which textbook to recommend.

A hard-to-find, expensive reference which is probably overkill, but it
has Really Pretty Pictures(tm):

Josef Hoschek and Dieter Lasser, "Fundamentals of Computer Aided
Geometric Design".  A K Peters, Massachusetts, 1993.

  Federico