[metapost] projective geometry

[Larry Siebenmann]

Hi all,

What I was explaining concerning projections of polynomial
(ie bezier) curves is a central theme of the book:

I. Herman, ``The use of projective geometry in computer graphics'',
Springer Lecture Notes in Computer Science, 564, 1992, 146 pages.

I recommend this book both for its geometric
approach and for the uncluttered clarity of the author's
style.

Cheers,

Laurent S.