Also an
efficient spring layout with edges
that automatically avoid nodes and that are optimized for minimal
crossings was implemented by Julien Fierz and part of the code at some
point in time.
I did not know this one.
Julien used it in his back-in-time debugger to visualize flow of data
in a (potentially large) graph of objects.
Also the original Squeak/Pharo code had anti-aliasing.
Lukas
--
Lukas Renggli
www.lukas-renggli.ch