If I ran one of these new fangled ‘new media arts’ courses (or whatever they are called now) I’d force students to restrict themselves to only using graphviz for several months. These are some accidents which happened trying to visualise haplotype networks for some biology visualisation work I’m doing:
Alex Mclean has some more impressive graphviz drawings here. I’m actually having to abandon graphviz as it wont cope with different length edges very well. I expect this will come back to bite me.