d3v4 Sunburst

D3V4 SUNBURST

by Colin White

HTML

<script src="https://d3js.org/d3.v4.min.js"></script>
<!DOCTYPE html><body></body>

CSS

path {
  stroke: #fff;
}

JavaScript

var width = 550, height = 550, radius = (Math.min(width, height) / 2) - 10;

var formatNumber = d3.format(",d");

var x = d3.scaleLinear()
    .range([0, 2 * Math.PI]);

var y = d3.scaleSqrt()
    .range([0, radius]);

var color = d3.scaleOrdinal(d3.schemeCategory20);

var partition = d3.partition();

var arc = d3.arc()
    .startAngle(function(d) { return Math.max(0, Math.min(2 * Math.PI, x(d.x0))); })
    .endAngle(function(d) { return Math.max(0, Math.min(2 * Math.PI, x(d.x1))); })
    .innerRadius(function(d) { return Math.max(0, y(d.y0)); })
    .outerRadius(function(d) { return Math.max(0, y(d.y1)); });
		
var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height)
  .append("g")
    .attr("transform", "translate(" + width / 2 + "," + (height / 2) + ")");

var root = {"name":"Ref Sizes", "children":[
	
		{"name":"40mm", "children":[
				{"name": "Submariner", "size":40},
				{"name": "Explorer", "size":10}
			]},
			
			{"name":"36mm", "children":[
				{"name": "DateJust", "size":60},
				{"name": "Perpetual", "size":20}
			]}

]};
  
  root = d3.hierarchy(root);
  root.sum(function(d) { return d.size; });
  svg.selectAll("path")
      .data(partition(root).descendants())
    .enter().append("path")
      .attr("d", arc)
      .style("fill", function(d) { return color((d.children ? d : d.parent).data.name); })
      .on("click", click)
    .append("title")
      .text(function(d) { return d.data.name + "\n" + formatNumber(d.value); });

function click(d) {
  svg.transition()
      .duration(750)
      .tween("scale", function() {
        var xd = d3.interpolate(x.domain(), [d.x0, d.x1]),
            yd = d3.interpolate(y.domain(), [d.y0, 1]),
            yr = d3.interpolate(y.range(), [d.y0 ? 20 : 0, radius]);
        return function(t) { x.domain(xd(t)); y.domain(yd(t)).range(yr(t)); };
      })
    .selectAll("path")
      .attrTween("d", function(d) { return function() { return arc(d); }; });
}