D3: Substituting d3.svg.diagonal() with d3.svg.line()

Question

I have implemented the following graph with the edges rendered with d3.svg.diagonal(). However, when I try substituting the diagonal with d3.svg.line(), it doesn\'t appear t

Answer 1

Perhaps encapsulating the diagonal function and editing its parameters could work for you:

var diagonal = d3.svg.diagonal();
var new_diagonal = function (obj, a, b) {
    //Here you may change the reference a bit.
    var nobj = {
        source : {
            x: obj.source.x,
            y: obj.source.y
        },
        target : {
            x: obj.target.x,
            y: obj.target.y
        }
    }
    return diagonal.apply(this, [nobj, a, b]);
}
var link= svg.selectAll("path")
    .data(links)
    .enter().append("path")
    .attr("d",new_diagonal)
    .attr("class", ".link")
    .attr("stroke", "black")
    .attr("stroke-width", "2px")
    .attr("shape-rendering", "auto")
    .attr("fill", "none");