in src/components/ForceGraph.js [124:136]
static getLinkPositions(simulation) {
return simulation.force('link').links().reduce(
(obj, link) => Object.assign(obj, {
[forceUtils.linkId(link)]: {
x1: link.source.x,
y1: link.source.y,
x2: link.target.x,
y2: link.target.y,
},
}),
{}
);
}