Comp Sci student learning the ropes.
Published
Edited
Mar 24, 2019
1 star
chart = {
const root = tree(d3.hierarchy(data)
.sort((a, b) => (a.height - b.height) || a.data.name.localeCompare(b.data.name)));
const svg = d3.select(DOM.svg(width, width))
.style("width", "100%")
.style("height", "auto")
.style("padding", "10px")
.style("box-sizing", "border-box")
.style("font", "10px sans-serif");
const g = svg.append("g");
const link = g.append("g")
.attr("fill", "none")
.attr("stroke", "#555")
.attr("stroke-opacity", 0.4)
.attr("stroke-width", 1.5)
.selectAll("path")
.data(root.links())
.enter().append("path")
.attr("d", d3.linkRadial()
.angle(d => d.x)
.radius(d => d.y));
const node = g.append("g")
.attr("stroke-linejoin", "round")
.attr("stroke-width", 3)
.selectAll("g")
.data(root.descendants().reverse())
.enter().append("g")
.attr("transform", d => `
rotate(${d.x * 180 / Math.PI - 90})
translate(${d.y},0)
`);
node.append("circle")
.attr("fill", d => d.children ? "#555" : "#999")
.attr("r", 2.5);
node.append("text")
.attr("dy", "0.31em")
.attr("x", d => d.x < Math.PI === !d.children ? 6 : -6)
.attr("text-anchor", d => d.x < Math.PI === !d.children ? "start" : "end")
.attr("transform", d => d.x >= Math.PI ? "rotate(180)" : null)
.text(d => d.data.name)
.filter(d => d.children)
.clone(true).lower()
.attr("stroke", "white");
document.body.appendChild(svg.node());
const box = g.node().getBBox();
svg.remove()
.attr("width", box.width)
.attr("height", box.height)
.attr("viewBox", `${box.x} ${box.y} ${box.width} ${box.height}`);
return svg.node();
}
width = 2500
radius = width / 2
tree = d3.cluster().size([2 * Math.PI, radius - 100])
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.
