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.
![](https://secure.gravatar.com/avatar/2945522184e3a28143d0238de69a1bdf?size=40&default=https%3A%2F%2Fassets.uvcdn.com%2Fpkg%2Fadmin%2Ficons%2Fuser_70-6bcf9e08938533adb9bac95c3e487cb2a6d4a32f890ca6fdc82e3072e0ea0368.png)
Available through the tooltip.positioner callback.
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Paweł Fus commented
You can also pass on custom point using mouseOver event: http://jsfiddle.net/hpxo6s7k/1/ - then use that point in positioner.
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Steve commented
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?