chart = {
const links = data.links.map(d => Object.create(d));
const nodes = data.nodes.map((d, index) => Object.create(d, { id: { value: index } }));
console.log(links,
nodes);
const simulation = forceSimulation(nodes, links).on("tick", ticked);
const svg = d3.select(DOM.svg(width, height))
.attr("viewBox", [-width / 2, -height / 2, width, height]);
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", numScenes)
.attr("fill", color)
.call(drag(simulation));
var texts = svg.selectAll(".texts")
.data(nodes)
.enter()
.filter( d => (d.value >= 40) )
.append("text")
.attr("font-family", "sans-serif")
.attr("dx", 12)
.attr("dy", "0.35em")
.text( d => d.name );
node.append("title")
.text(d => d.name);
function ticked() {
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)
texts
.attr("x", d => d.x)
.attr("y", d => d.y);
}
return svg.node();
}
function forceSimulation(nodes, links) {
return d3.forceSimulation(nodes)
.force("link", d3.forceLink(links).id(d => d.id))
.force("charge", d3.forceManyBody().strength(-130).distanceMin(60))
.force("center", d3.forceCenter());
}
data = d3.json("https://raw.githubusercontent.com/evelinag/StarWars-social-network/master/networks/starwars-full-interactions-allCharacters-merged.json")
height = 800
color = {
//const scale = d3.scaleOrdinal(d3.schemeCategory10);
//return d => scale(d.value);
return d => d.colour;
}
drag = simulation => {
function dragstarted(d) {
if (!d3.event.active) simulation.alphaTarget(0.3).restart();
d.fx = d.x;
d.fy = d.y;
}
function dragged(d) {
d.fx = d3.event.x;
d.fy = d3.event.y;
}
function dragended(d) {
if (!d3.event.active) simulation.alphaTarget(0);
d.fx = null;
d.fy = null;
}
return d3.drag()
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended);
}
d3 = require("d3@5")
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.
