Support graphs/trees/networks

[bryevdv]

Need to add support for visualizing graph data. Need to integrate with various formats (dot, networkx, etc.), support things like force directed layouts, etc.

[aidiss]

+1 for networkx support!

[datnamer]

+1 for this!

[aidiss]

+1

[jiaxu825]

+1

[ajaykarpur]

+1 for networkx

[hnykda]

+1

[JosephCottam]

As a first step, we could integrate static graph layouts based on the charts interface. You do all of the layout at graph creation time in python then no JS graph components are required.

[bryevdv]

Another first step would be to make the MPL support robust enough so that networkx (or some subset of it, anyway) works out of the box with mpl.to_bokeh. Failing that, we could use networkx to do the static layout in python ourselves. In either case I agree that static layout in python is the most reasonable place to start, unless someone with JS graph experience shows up and wants to help expose graph primitives in BokehJS.

[JosephCottam]

I will take a first stab at it, since I want to use it for another project.

[bryevdv]

@JosephCottam any update on experiments with networkX?

Also, a potentially useful reference from @pzwang http://sigmajs.org/

[bixb0012]

Although this is already a long-term milestone,
+1

[hhuuggoo]

The other thing we could do is render an svg on top of the canvas and then allow a few d3 based renderers

[tonyfast]

While this issue is still pending. Please see this notebook example that uses Bokeh to plot NetworkX graphs.