c3 - Scatter plot size on "tooltip" -

how to retrieve radius(or size) of scatter plot on tooltip.

r : function(d) {         if (d.value != null) {             var size = datajson[k++]["total"];              return size;        } 

i have done this..so tooltip should show size when point on bubble. how achieve this?

thanks

you can add size d object

r: function (d) {     if (d.value != null) {         var size = datajson[k++]["total"];         d.size = size;         return size;     } } 

and retrieve when show tooltip

tooltip: {     contents: function (d) {         if (d[0].value != null) {             return d[0].size;         }     } }, 

fiddle - http://jsfiddle.net/f0cotcqp/