Work out point overlap

[MFarejowicz]

Points will overlap if they have the same x and y value, and then hovering over them will only display the tooltip for one.

Currently not sure of best fix for this.

[lnancy]

could we possibly modify tooltips to display the information for overlapping points in the same tooltip? So hovering over one (whichever point is on the top) will display all information for points have the same x and y? @MFarejowicz

[MFarejowicz]

Hmm unfortunately with the way SVG's are handled, one circle will always be drawn over the other so it never registers the onMouseOver event for the circle underneath, and therefore I don't get the data.
I'll read into SVG docs to see if there's a fix for this somewhere, @lnancy