While still not in Perl, the best work that I know of on implementing Bresenham's Algorithm is to be found in books by Michael Abrash. Two come to mind that belong on any programmers shelf; "
Zen of Graphics Programming" Coriolis Group Books, ISBN 188357708X and "
Zen of Code Optimization", Coriolis Group Books, ISBN 1883577039. Since Coriolis is sadly no longer among the living, you might try Powel's Technical in Portland.
--hsm
"Never try to teach a pig to sing...it wastes your time and it annoys the pig."
