Contact Map rendering

[Hector Medina]

Hi folks,

I've added some advanced contact map rendering support to my tool suite, KaSaAn. While the circular layout done in the KaSim-in-browser is comprehensive, I have trouble reading that for large models. So I created a graphical language to describe these things, inspired from the potato-diagrams of old.

The tool suite also has a CLI script to read the contact map from witness files (aka "inputs.ka"), render them using different adapted algorithms, and add a very simple user interface to manually tweak the layout (polishing is best left to dedicated programs like Inkscape or Illustrator, but at least this is a quick way to render them).

An example of a default render of my large Wnt model:

$ kappa_contact_map -m shell --summarize_flagpole -fs 10 10

The API is extensively documented, as is the script, so pass it the --help flag to display what's what..

~Hector