make plots less dense, enable plotting for igraph

[MridulS]

No description provided.

[rossbar]

Hm, there's a NotImplementedError for igraph plotting on linux... maybe a version needs to be bumped somewhere?

[MridulS]

It's installing the latest available version of igraph (0.9.1) but it looks like they will be removing plotting to a temp file soon which ig.plot uses without any target, https://github.com/igraph/python-igraph/blob/52df5180289cfe916766dab4022fc6cc35caf86b/src/igraph/drawing/__init__.py#L434

I'm trying this with a matplotlib backend now.

[MridulS]

the matplotlib one worked, not sure if there is a cleaner way for this.

[MridulS]

Plotting preview: https://1847-890377-gh.circle-artifacts.com/0/doc/build/html/auto_examples/external/plot_igraph.html#sphx-glr-auto-examples-external-plot-igraph-py

[rossbar]

LGTM! It'd be nice to annotate the first graph to describe what's being drawn just so it's obvious from the image itself (maybe adding axes titles would do it).

Also, do you know if the igraph layout is reproducible or is there a random component? If the latter it'd be good to provide a seed (if possible). Same with the igraph->NX example; it'd be good to make sure that the layout used in the example is reproducible, maybe by adding an explicit nx.spring_layout with a seed.

[jarrodmillman]

@MridulS Could you update the igraph dependency to

python-igraph>=0.9

I am pretty sure this doesn't work on < 0.9. (You may also want to rebase on main.)

[jarrodmillman]

I believe the documentation build error is fixed on the main branch.

[rossbar]

Looks great, thanks Mridul!