Create 3d_rotation_anime.py

[lobpcg]

Make a new 3d example with rotating graph animation.

Motivated by @rossbar #6893 (comment)

[lobpcg]

@MridulS - I only need circleci but [skip test] has no effect?

[dschult]

Looks like in the documentation check deatils under "Build Doc" and then searching for "Animation", line 1375 or so in the Build Doc details identifies an error that the ====== lines aren't long enough around your title for the doc_string. But then it gives a number of warnings that suggest it is having trouble even loading networkx. I'm assuming it is a problem related to this test example -- perhaps the fact that it doesn't use networkx anywhere. But I can't really tell without trying to build locally.

Have you tried building the docs locally? Does the animation work there?

[lobpcg]

I can only run the code locally, but have no documentation building setup.

I'll look at the build messages, thanks for the advice!

[lobpcg]

Ready for review/merge, please

[lobpcg]

View the auto-generated animations for this PR in the latest docs https://output.circle-artifacts.com/output/job/b98e4fa1-883d-41ea-9f07-6aa9a0da75cc/artifacts/0/doc/build/html/auto_examples/3d_drawing/plot_3d_rotation_anime.html

[dschult]

When first reading this I was thinking it was more about matplotlib than about networks. But by the end I could see the usefulness as an example of how to animate plots of a network (either rotating in 3D, or showing network attributes changing in time, etc).

Thanks a lot for getting this working. I am sure it will become a popular gallery example for NetworkX.

I've found a spelling error. I didn't search for others.
This PR looks good to me!

[rossbar]

Thanks for iterating on this @lobpcg ! This LGTM; it might be good to split it up into multiple examples because sphinx-gallery only supports one plot for the thumbnail, but let's leave such touchups for follow-up PRs.