showing tooltip with node:mouseover event

[agaurav]

Is there way to use d3.tip with the chart.on if not then best way to add a chart.tip method simmilar to the one implemented here line 102 and 156

Also, great plugin (the only decent of sankey) and really liked the hierarchical highlighting of edges in product demo.

[wvengen]

Sorry for not responding earlier, somehow I've missed these notifications.
In theory this would be no problem, and I'd love d3.chart.sankey to support this. I'd say that you could subclass one of the d3.chart.sankey classes and setup d3.tip. Some untested rough idea:

var MySankeyTip = Sankey.extend("Sankey.Tip", {
  initialize: function() {
    var chart = this;
    chart.tip = // make the tip stuff work
  }
}); 

[agaurav]

Yeah sounds good, will submit a PR after trying it out. For now I am using the mouseover callbacks for showing the node or link details.

[wvengen]

Cool! I wonder if this should be a separate Sankey class, since there is no clear chain of derivation. It might be better to just create the chart, and then attach d3.tip() to it - so I'm curious where you'll end up. In any case, this would be useful to add to the documentation and/or as an example.