bubble tooltip positioner
I'm trying to get the callout portion of a tooltip for a bubble chart to touch the outside perimeter of the bubble (needed because of overlapping bubbles and how the tooltips behave). I tried using the tooltip positioner but there is no information about the point (bubble) radius, so I have no idea how far to position the tooltip.
Available through the tooltip.positioner callback.
Paweł Fus commented
You can also pass on custom point using mouseOver event: http://jsfiddle.net/hpxo6s7k/1/ - then use that point in positioner.
I noticed in the tooltip formatter function I can get the bubble radius from: this.point.shapeArgs.r
How can I get this same value from the tooltip positioner function?