chart = {
let links = []
let nodes = []
if(filterId === "All"){
links = data.links.map(d => Object.create(d));
nodes = data.nodes.map(d => Object.create(d));
} else {
links = data.links.filter(d => d.source == filterId || d.target == filterId).map(d => Object.create(d));
const otherPersons = links.map(d => d.source !== filterId ? d.source : d.target)
nodes = data.nodes.filter(d => d.id == filterId || otherPersons.indexOf(d.id) >= 0).map(d => Object.create(d));
}
const simulation = d3.forceSimulation(nodes)
.force("link", d3.forceLink(links).id(d => d.id))
.force("charge", d3.forceManyBody())
.force("center", d3.forceCenter(width / 2, height / 2));
const svg = d3.select(DOM.svg(width, height))
.style('max-width', '100%')
.style('max-height', '100%');
const link = svg.append("g")
.attr("stroke", "#999")
.attr("stroke-opacity", 0.6)
.selectAll("line")
.data(links)
.enter().append("line")
.attr("stroke-width", d => Math.sqrt(d.value));
const node = svg.append("g")
.attr("stroke", "#fff")
.attr("stroke-width", 1.5)
.selectAll("circle")
.data(nodes)
.enter().append("circle")
.attr("r", d => d.value)
.attr("fill", color)
.call(drag(simulation));
node.append("title")
.text(d => d.id);
simulation.on("tick", () => {
link
.attr("x1", d => d.source.x)
.attr("y1", d => d.source.y)
.attr("x2", d => d.target.x)
.attr("y2", d => d.target.y);
node
.attr("cx", d => d.x)
.attr("cy", d => d.y);
});
invalidation.then(() => simulation.stop());
return svg.node();
}