Convex Hull

[PBI-David]

Has anyone managed to create a convex hull for grouping points on a scatter chart. Something like the following?

Do we need a new transform for this or is is possible with what we have already?

I think one way is adapting the Voronoi transform which uses d3-delaunay which provides a function named delaunay.hull

[PBI-David]

No matter - I figured it out. I'll upload the spec (all done using signals and transforms in Vega) to the following repository in the next few days once I have cleaned it up a little:

https://github.com/PBI-David/Deneb-Showcase

I'll leave the issue open as native support would be preferable (and this version is slow which you can see if you click the gif link to play)