blip includes a generic grammar/writer for the graphviz language ‘dot’.
dot is actually quite powerful, and allows for specification of boxes inside boxes. For example, the following blip command line call:
blip -r fma ontol-subset -n Heart -cr subclass -to display
will generate and display a png such as this:
The ontol/conf directory specifies a number of configulation modules for the ontol library. These can be specified with the “-u” option on the command line. These allows things such as color-coding by ontology. For example “ontol_config_uberon” allows generation of diagrams such as: