chart = {
const svg = d3.create("svg")
.attr("viewBox", [-width / 2, -height / 2, width, height])
.attr("font-size", 10)
.attr("font-family", "sans-serif")
.attr("align", "center")
.attr("justify-content", "center")
.attr("id", "chart")
.attr("text-anchor", "middle") ;
const def = svg.append("defs");
def
.append("circle")
.attr("id", "circle")
.attr("r", 8);
def
.append("clipPath")
.attr("id", "circle-clip")
.append("use")
.attr("xlink:href", new URL("#circle", location));
let link = svg.append("g")
.attr("stroke", "#000")
.attr("stroke-width", 1.5)
.selectAll("line");
let node = svg.append("g")
.attr("stroke", "#fff")
.attr("stroke-width", 1.5)
.selectAll("circle")
// node.append('circle')
// .attr("fill", d => color_2(d.score))
// .attr("r", d => d.score+10);
let label = svg.append("g")
.append("text")
.selectAll("label_id")
// .data(graph.nodes)
;
function title(g) {
g.append("title").text(d => `${d.score}${d.id ? `\n${d.id}` : ""}`);
}
const simulation = d3.forceSimulation(node)
.force("charge", d3.forceManyBody().strength(-1000))
.force("link", d3.forceLink().id(d => d.id).distance(200))
.force("x", d3.forceX())
.force("y", d3.forceY())
.on("tick", ticked);
function ticked() {
node .attr("transform", d => `translate(${d.x}, ${d.y})`)
// node.append("text")
// .text(function(d) {
// return d.id;
// })
// node.append("title")
// .text(d => d.id + ": " + d.label + " - " + d.score);
// node.append('circle')
.attr("r", d => d.score+10)
.attr("fill", d => color_2(d.score)) ;
label.attr('cx', function(d) { return d.x; })
.attr('cy', function(d) { return d.y; });
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);
}
// Terminate the force layout when this cell re-runs.
invalidation.then(() => simulation.stop());
return Object.assign(svg.node(), {
update({nodes, links, labels}) {
// Make a shallow copy to protect against mutation, while
// recycling old nodes to preserve position and velocity.
const old = new Map(node.data().map(d => [d.id, d]));
nodes = nodes.map(d => Object.assign(old.get(d.id) || {}, d));
links = links.map(d => Object.assign({}, d));
// labels = labels.map(d => Object.assign({}, d));
node = node
.data(nodes, d => d.id)
.join(enter =>
enter.append("circle")
.attr("fill", d => color_2(d.score))
.call(title)
.attr("r", d => d.score+10)
)
// .append('circle')
// .attr("r", d => d.score+10)
// .attr("fill", d => color_2(d.score)) ;
// node.append("text").text(d => d.id);
// .text(function(d) {
// return d.label;
// })
labels = label
.data(nodes, d => d.score)
.join(enter => enter.append("label_id") )
// .text(function (d){return d.score})
link = link
.data(links, d => [d.source, d.target])
.join("line");
simulation.nodes(nodes);
simulation.force("link").links(links);
// simulation.alpha(1).restart();
simulation.restart();
}
});
}