siblingUtil.js

import * as d3 from "d3";

export function sblingLine(d,allNodes) {
    //start point
    var start = allNodes.filter(function (v) {
        if (d.source.id == v.id) {
            return true;
        } else {
            return false;
        }
    });
    //end point
    var end = allNodes.filter(function (v) {
        if (d.target.id == v.id) {
            return true;
        } else {
            return false;
        }
    });
    //define teh start coordinate and end co-ordinate
    var linedata = [{
        x: start[0].x,
        y: start[0].y
    }, {
        x: end[0].x,
        y: end[0].y
    }];
    var fun = d3.svg.line().x(function (d) {
        return d.x;
    }).y(function (d) {
        return d.y;
    }).interpolate("linear");
    return fun(linedata);
}