| license: gpl-3.0 |
This is a fork of Mike Bostock's Block/Gist showing how to wrap long labels in D3. However, I've adapted it to use D3 v4 (latest version of D3 at time of writing).
This demonstration uses satirical data from The Onion.
The changes to Bostock's code are not substantial.
function declarations with easier-to-read arrow functions.| name | value | |
|---|---|---|
| Family in feud with Zuckerbergs | .17 | |
| Committed 671 birthdays to memory | .19 | |
| Ex is doing too well | .10 | |
| High school friends all dead now | .15 | |
| Discovered how to “like” things mentally | .27 | |
| Not enough politics | .12 |
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .bar { | |
| fill: steelblue; | |
| } | |
| .bar:hover { | |
| fill: brown; | |
| } | |
| .title { | |
| font: bold 14px "Helvetica Neue", Helvetica, Arial, sans-serif; | |
| } | |
| .axis { | |
| font: 10px sans-serif; | |
| } | |
| .axis path, | |
| .axis line { | |
| fill: none; | |
| stroke: #000; | |
| shape-rendering: crispEdges; | |
| } | |
| .x.axis path { | |
| display: none; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v4.min.js"></script> | |
| <script> | |
| var margin = {top: 80, right: 180, bottom: 80, left: 180}, | |
| width = 960 - margin.left - margin.right, | |
| height = 500 - margin.top - margin.bottom | |
| var x = d3.scaleBand() | |
| .range([0, width]) | |
| .paddingInner(.1) | |
| .paddingOuter(.3) | |
| var y = d3.scaleLinear() | |
| .range([height, 0]) | |
| var xAxis = d3.axisBottom(x) | |
| var yAxis = d3.axisLeft(y) | |
| .ticks(8, "%") | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width + margin.left + margin.right) | |
| .attr("height", height + margin.top + margin.bottom) | |
| .append("g") | |
| .attr("transform", `translate(${margin.left}, ${margin.top})`) | |
| d3.tsv("data.tsv", d => { d.value = +d.value; return d }, function(error, data) { | |
| x.domain(data.map(d => d.name)) | |
| y.domain([0, d3.max(data, d => d.value)]) | |
| svg.append("text") | |
| .attr("class", "title") | |
| .attr("x", x(data[0].name)) | |
| .attr("y", -26) | |
| .text("Why Are We Leaving Facebook?") | |
| svg.append("g") | |
| .attr("class", "x axis") | |
| .attr("transform", `translate(0, ${height})`) | |
| .call(xAxis) | |
| .selectAll(".tick text") | |
| .call(wrap, x.bandwidth()) | |
| svg.append("g") | |
| .attr("class", "y axis") | |
| .call(yAxis) | |
| svg.selectAll(".bar") | |
| .data(data) | |
| .enter().append("rect") | |
| .attr("class", "bar") | |
| .attr("x", d => x(d.name)) | |
| .attr("width", x.bandwidth()) | |
| .attr("y", d => y(d.value)) | |
| .attr("height", d => height - y(d.value)) | |
| }) | |
| function wrap(text, width) { | |
| text.each(function() { | |
| var text = d3.select(this), | |
| words = text.text().split(/\s+/).reverse(), | |
| word, | |
| line = [], | |
| lineNumber = 0, | |
| lineHeight = 1.1, // ems | |
| y = text.attr("y"), | |
| dy = parseFloat(text.attr("dy")), | |
| tspan = text.text(null).append("tspan").attr("x", 0).attr("y", y).attr("dy", dy + "em") | |
| while (word = words.pop()) { | |
| line.push(word) | |
| tspan.text(line.join(" ")) | |
| if (tspan.node().getComputedTextLength() > width) { | |
| line.pop() | |
| tspan.text(line.join(" ")) | |
| line = [word] | |
| tspan = text.append("tspan").attr("x", 0).attr("y", y).attr("dy", `${++lineNumber * lineHeight + dy}em`).text(word) | |
| } | |
| } | |
| }) | |
| } | |
| </script> |
