A wind rose is a graphic tool used by meteorologists to give a succinct view of how wind speed and direction are typically distributed at a particular location (https://en.wikipedia.org/wiki/Wind_rose). The chart is built with inspiration and code from two examples created by Mike Bostock (https://bl.ocks.org/mbostock/6fead6d1378d6df5ae77bb6a719afcb2. Tags: windrose, wind rose, rose plot
xxxxxxxxxx<meta charset="utf-8"><svg width="960" height="960" font-family="sans-serif" font-size="10"></svg><script src="https://d3js.org/d3.v4.min.js"></script><script src="d3-scale-radial.js"></script><style> .axis { stroke: gray }</style><script> var svg = d3.select("svg"), width = +svg.attr("width"), height = +svg.attr("height"), margin = {top: 40, right: 80, bottom: 40, left: 40}, innerRadius = 20, chartWidth = width - margin.left - margin.right, chartHeight= height - margin.top - margin.bottom, outerRadius = (Math.min(chartWidth, chartHeight) / 2), g = svg.append("g").attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); var angle = d3.scaleLinear() .range([0, 2 * Math.PI]); var radius = d3.scaleLinear() .range([innerRadius, outerRadius]); var x = d3.scaleBand() .range([0, 2 * Math.PI]) .align(0); var y = d3.scaleLinear() //you can try scaleRadial but it scales differently .range([innerRadius, outerRadius]); var z = d3.scaleOrdinal() .range(["#4242f4", "#42c5f4", "#42f4ce", "#42f456", "#adf442", "#f4e242", "#f4a142", "#f44242"]); d3.csv("data.csv", function(d, i, columns) { for (i = 1, t = 0; i < columns.length; ++i) t += d[columns[i]] = +d[columns[i]]; d.total = t; return d; }, function(error, data) { if (error) throw error; x.domain(data.map(function(d) { return d.angle; })); y.domain([0, d3.max(data, function(d) { return d.total; })]); z.domain(data.columns.slice(1)); // Extend the domain slightly to match the range of [0, 2π]. angle.domain([0, d3.max(data, function(d,i) { return i + 1; })]); radius.domain([0, d3.max(data, function(d) { return d.y0 + d.y; })]); angleOffset = -360.0/data.length/2.0; g.append("g") .selectAll("g") .data(d3.stack().keys(data.columns.slice(1))(data)) .enter().append("g") .attr("fill", function(d) { return z(d.key); }) .selectAll("path") .data(function(d) { return d; }) .enter().append("path") .attr("d", d3.arc() .innerRadius(function(d) { return y(d[0]); }) .outerRadius(function(d) { return y(d[1]); }) .startAngle(function(d) { return x(d.data.angle); }) .endAngle(function(d) { return x(d.data.angle) + x.bandwidth(); }) .padAngle(0.01) .padRadius(innerRadius)) .attr("transform", function() {return "rotate("+ angleOffset + ")"}); var label = g.append("g") .selectAll("g") .data(data) .enter().append("g") .attr("text-anchor", "middle") .attr("transform", function(d) { return "rotate(" + ((x(d.angle) + x.bandwidth() / 2) * 180 / Math.PI - (90-angleOffset)) + ")translate(" + (outerRadius+30) + ",0)"; }); label.append("text") .attr("transform", function(d) { return (x(d.angle) + x.bandwidth() / 2 + Math.PI / 2) % (2 * Math.PI) < Math.PI ? "rotate(90)translate(0,16)" : "rotate(-90)translate(0,-9)"; }) .text(function(d) { return d.angle; }) .style("font-size",14); g.selectAll(".axis") .data(d3.range(angle.domain()[1])) .enter().append("g") .attr("class", "axis") .attr("transform", function(d) { return "rotate(" + angle(d) * 180 / Math.PI + ")"; }) .call(d3.axisLeft() .scale(radius.copy().range([-innerRadius, -(outerRadius+10)]))); var yAxis = g.append("g") .attr("text-anchor", "middle"); var yTick = yAxis .selectAll("g") .data(y.ticks(5).slice(1)) .enter().append("g"); yTick.append("circle") .attr("fill", "none") .attr("stroke", "gray") .attr("stroke-dasharray", "4,4") .attr("r", y); yTick.append("text") .attr("y", function(d) { return -y(d); }) .attr("dy", "-0.35em") .attr("x", function() { return -10; }) .text(y.tickFormat(5, "s")) .style("font-size",14); var legend = g.append("g") .selectAll("g") .data(data.columns.slice(1).reverse()) .enter().append("g")// .attr("transform", function(d, i) { return "translate(-40," + (i - (data.columns.length - 1) / 2) * 20 + ")"; }); .attr("transform", function(d, i) { return "translate(" + (outerRadius+0) + "," + (-outerRadius + 40 +(i - (data.columns.length - 1) / 2) * 20) + ")"; }); legend.append("rect") .attr("width", 18) .attr("height", 18) .attr("fill", z); legend.append("text") .attr("x", 24) .attr("y", 9) .attr("dy", "0.35em") .text(function(d) { return d; }) .style("font-size",12); });</script> https://d3js.org/d3.v4.min.js