biPartite - edgeOpacity

viz.bP().edgeOpacity

This method sets the fill-opacity for the edges.

The example on the left is using the default edgeOpacity=0.4 and the example on the right is using edgeOpacity=0.1.

For other options and examples, check VizJS

<!DOCTYPE html>
<meta charset="utf-8">
<style>
.mainBars{
  shape-rendering: auto;
  fill-opacity: 0;
  stroke-width: 0.5px;
  stroke: rgb(0, 0, 0);
  stroke-opacity: 0;
}
.subBars{
	shape-rendering:crispEdges;
}
.edges{
	stroke:none;
	fill-opacity:0.3;
}
</style>
<body>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://vizjs.org/viz.v1.1.0.min.js"></script>
<script>
var width = 960, height=700;
var data=[
['A','X', 1, 5]
,['A','Y', 3,4]
,['B','X', 5,1]
,['B','Y', 8,10]
,['C','X', 2,13]
,['C','Y', 9,7]
];

var color = {A:"#3366CC", B:"#DC3912",  C:"#FF9900"};

var svg = d3.select("body").append("svg").attr("width", width).attr("height", height);

var bp1=viz.bP().data(data).fill(d=>color[d.primary]);
svg.append("g").attr("transform","translate(50,50)").call(bp1);

var bp2=viz.bP().data(data)
           .fill(d=>color[d.primary])
		   .edgeOpacity(0.1);

svg.append("g").attr("transform","translate(500,50)").call(bp2);

// adjust the bl.ocks frame dimension.
d3.select(self.frameElement).style("height", height+"px").style("width", width+"px");      
</script>
</body>
</html>

Modified http://vizjs.org/viz.v1.1.0.min.js to a secure url

https://d3js.org/d3.v4.min.js

https://vizjs.org/viz.v1.1.0.min.js