Events for shapes?

[etienne]

@pppw

But it seems the shapes don’t support any events?

That is indeed the case, unfortunately.

@pppw

If so, I wonder do you have any suggestions on alternative options to work around? I tried to use a scatter plot on top of that, but the markers can only be squares, not rectangles.

I would use a shape and a scatter trace in tandem. First draw a shape as you would normally, then add a scatter trace with x/y coordinates along the shape. To not obstruct the shape, you can try setting marker.opacity: 0.