It would be cool to generate these using Vega (https://vega.github.io/vega/) and embed them directly on Wikipedia (https://www.mediawiki.org/wiki/Extension:Graph/Demo).

What a neat idea!

Thanks for making this! I create a lot of similar diagrams using this[1] tool, but it's always frustrated me that I can't define the data in a form like JSON, so your library looks perfect. Will you consider adding the Westminster style diagram in the future?

[1]: https://tools.wmflabs.org/parliamentdiagram/parliamentinputf...

Thanks! Sure, I'll work on Westminster in the next few days.

Nice and useful tool. Thanks!