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<!DOCTYPE html> |
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<meta charset="utf-8"> |
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<head> |
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<link href="https://fonts.googleapis.com/css?family=Fira+Sans:300,300i,400,500,700" rel="stylesheet"> |
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</head> |
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<style> |
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body { |
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margin: 15px; |
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background-color: #F1F3F3; |
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font-family: 'Fira Sans', sans-serif; |
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} |
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.bar { |
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fill: #6F257F; |
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} |
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.bar:hover { |
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fill: #CC0058; |
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transition: fill 0.15s; |
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} |
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text { |
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font-family: 'Fira Sans', sans-serif; |
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font-weight: 500; |
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font-size: 15px; |
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color: #081F2C; |
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} |
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.axis path, |
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.axis line { |
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fill: none; |
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stroke: #BDC2C6; |
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stroke-width: 1px; |
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shape-rendering: crispEdges; |
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} |
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.x path { |
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display: none; |
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} |
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.y line { |
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display: none; |
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} |
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.toolTip { |
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position: absolute; |
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pointer-events: none; |
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display: none; |
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min-width: 50px; |
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height: auto; |
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background: none repeat scroll 0 0 #ffffff; |
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padding: 9px 14px 6px 14px; |
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border-radius: 2px; |
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text-align: center; |
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line-height: 1.3; |
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color: #5B6770; |
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box-shadow: 0px 3px 9px rgba(0, 0, 0, .15); |
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} |
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.toolTip:after { |
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content: ""; |
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width: 0; |
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height: 0; |
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border-left: 12px solid transparent; |
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border-right: 12px solid transparent; |
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border-top: 12px solid white; |
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position: absolute; |
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bottom: -10px; |
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left: 50%; |
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margin-left: -12px; |
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} |
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.toolTip span { |
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font-weight: 500; |
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color: #081F2C; |
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} |
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</style> |
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<svg width="960" height="500"></svg> |
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<script src="https://d3js.org/d3.v4.min.js"></script> |
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<script> |
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var svg = d3.select("svg"), |
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margin = {top: 20, right: 50, bottom: 30, left: 100}, |
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width = +svg.attr("width") - margin.left - margin.right, |
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height = +svg.attr("height") - margin.top - margin.bottom; |
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var tooltip = d3.select("body").append("div").attr("class", "toolTip"); |
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var x = d3.scaleLinear().range([0, width]); |
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var y = d3.scaleBand().range([height, 0]); |
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var g = svg.append("g") |
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.attr("transform", "translate(" + margin.left + "," + margin.top + ")"); |
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d3.json("data.json", function(error, data) { |
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if (error) throw error; |
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data.sort(function(a, b) { return a.value - b.value; }); |
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x.domain([0, d3.max(data, function(d) { return d.value; })]); |
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y.domain(data.map(function(d) { return d.area; })).padding(0.1); |
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g.append("g") |
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.attr("class", "x axis") |
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.attr("transform", "translate(0," + height + ")") |
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.call(d3.axisBottom(x).ticks(5).tickFormat(function(d) { return parseInt(d / 1000); }).tickSizeInner([-height])); |
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g.append("g") |
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.attr("class", "y axis") |
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.call(d3.axisLeft(y)); |
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g.selectAll(".bar") |
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.data(data) |
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.enter().append("rect") |
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.attr("class", "bar") |
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.attr("x", 0) |
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.attr("height", y.bandwidth()) |
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.attr("y", function(d) { return y(d.area); }) |
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.attr("width", function(d) { return x(d.value); }) |
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.on("mousemove", function(d){ |
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// Replace hard coded vals (50, 90) with 50% of the tooltip wioth and height + a top buffer |
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tooltip |
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.style("left", d3.event.pageX - 50 + "px") |
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.style("top", d3.event.pageY - 90 + "px") |
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.style("display", "inline-block") |
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.html((d.area) + "<br><span>" + "£" + (d.value) + "</span>"); |
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}) |
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.on("mouseout", function(d){ tooltip.style("display", "none");}); |
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}); |
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</script> |
