Graph support for rich

[LarsHill]

In addition to the great tree rendering option, it would be cool to have some simple graph visualization capabilities.

Maybe one could start supporting directed graphs in a hierarchical sugiyama layout.
Basically this would be an extension of tree rendering (top to bottom instead of left to right) with the option to connect multiple predecessor nodes to a singe ancestor node.

Would something like this be feasible to include into rich?

I think it would nicely complement the feature palette of tree and table rendering.

Best regards
Lars

[willmcgugan]

Sure it would be nice, but that would be a challenge to render to the terminal and I only have so much time. It doesn't feel as universally applicable as the current feature set so I can't see it going in the core. It is my hope that third parties will implement such things using the render protocol.

[LarsHill]

That makes sense. I just noticed that DVC has console graph visualization functionality build in.

They use grandalf to create the graph sugiyama layout and wrote their own ascii rendering script to visualize the graph in the console.

I‘ll take a look at adapting their script to use rich for the rendering part.