Highlight Paths

[kave3]

Hi Mike,

I sure love working with your D3 Sankey! Any chance to build in a start to end path highlighting?
There are a couple of examples out there...
https://bl.ocks.org/willzjc/c6607db2fc223bb5bed7b7589523c5f8
http://bl.ocks.org/git-ashish/8959771
but none are done very well and are not based on a node's actual ID like yours. It would be great if that could be built in as a native feature.