[Feature] Circular Sankey

[OmerWow]

What problem does this feature solve?

Hi,

First I'll start by saying this is probably the best charting library i've seen yet.

I'm developing a SaaS application and I'm visualizing some flows using a sankey diagram, but in the case of the flows I'm trying to show (which are API traffic flows), there are some 'circular' links -- which means some of the flows can 'go back' to a previous endpoint in the API (or a node in the diagram).

As far as I know there is no way to show it using e-charts (I've actually haven't seen any library that can do this except a custom solution in D3, which I have absolutely no will to use since I tried D3 many times, and while it's very versatile, I had a very bad overall DX with them.

Anyway, if it fits in your vision of echarts, I think it'll be a great feature to add :)

What does the proposed API look like?

I'm not completely sure how the code will look like but I can give you some links to working examples in D3, I'm guessing you can get some inspiration from there.

Here's a circular-sankey D3 addon: https://www.npmjs.com/package/d3-sankey-circular

And here is a working example: https://bl.ocks.org/tomshanley/6f3fcf68c0dbc401548733dd0c64e3c3

[vikashpisces]

I echo the same that this is the best charting library I have been using for more than 4 years now. And, I am also in the same situation where I need to show Sankey flow in bidirectional support and if there is a way to show the arrow direction on tip of the links will be of great use.

Any timeline as when this feature will be released or an update if this feature is going to be supported or not.

[YoungFaithful]

Running into the same issue. Would be great if we could add this to echarts!

[E2MAS-DSSE]

Any update on circular Sankey by when this feature will be available?