Developing a Higraph Editor
In the mid 1990s I was given a copy of David Harel’s paper “On Visual Formalisms“, where he described an extension to graph theory where nodes become sets – or ‘blobs’ as he called them,...
In the mid 1990s I was given a copy of David Harel’s paper “On Visual Formalisms“, where he described an extension to graph theory where nodes become sets – or ‘blobs’ as he called them,...