Equal-width Sankey plots

[briochemc]

I thought it might be a useful to share this resource in case you'd want to implement it. (It makes them sankey plots look nicer IMHO!)

Their "brute force" idea that seems to work well:

1. draw the "middle" path connecting the middles of source and target
2. then build the band by drawing the curves above and below as if using a pen of fixed length and always perpendicular to the middle path as you travel that said middle path.

An image is worth a thousand words, so here is one of their GIFs that shows the difference quite nicely I think:

Hope this is helpful,
Cheers!

[davide-f]

Dear @briochemc,

Thank you for the contribution; the approach looks nice, however, I have no time to implement this feature.
Feel free to open a PR if you are interested into it. I can give advices in case.

Best,
Davide

[daschw]

Thanks for the hint! That does indeed look nice. It probably would be best to have both options.