This is an interesting question. D3 is a very powerful library for making complex charts. One of my favorite charts made using D3 is this 2013 budget chart created by the New York times team.

A Christmas Carol chart is also one of my favorite charts.

I have personally never created any complex charts using D3. I am still learning it. 😀 Looking forward to making one soon.

Not yet no, I was considering it, but for simpler charts ChartJS looks as an more easy approach. I would like a Vue extension to D3 :-)

Bit of genetics, I wrote a circular vis tool with 3d renderer in SVG:

Here is the link

Here is the white paper if you are interested

And for the 3d renderer

It's not the Driest code you know :) It is a 5 yo project that combines perl + javascript + HTML + D3 but still looks decent among its rivals.

If you are interested let me know, I can post more examples.