Function dragstarted

scripts/static/js/graph.js:465–469

(event, d)

}

function dragstarted(event, d) {
    if (!event.active && simulation) simulation.alphaTarget(0.3).restart(); // Keep simulation alive
    d.fx = d.x;
    d.fy = d.y;
}
function dragged(event, d) {
    d.fx = event.x;
    d.fy = event.y;