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February 28, 2020 02:28
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animated bar chart with labels
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license: mit |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
body { | |
font: 12px Lato; | |
} | |
.axis path, | |
.axis line{ | |
fill: none; | |
stroke: #898989; | |
shape-rendering: crispEdges; | |
} | |
.x.axis { | |
font-size: 14px; | |
font-weight: 150; | |
} | |
.y.axis { | |
display: none; | |
} | |
svg text.label { | |
font-weight: 400; | |
text-anchor: start; | |
text-align: center; | |
} | |
</style> | |
<body> | |
<script src="http://d3js.org/d3.v4.min.js"></script> | |
<script> | |
var margin = {top: 40, right: 30, bottom: 30, left: 50}, | |
width = 460 - margin.left - margin.right, | |
height = 320 - margin.top - margin.bottom; | |
var formatPercent = d3.format(".0%"); | |
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 + ")"); | |
var x = d3.scaleBand() | |
.range([0, width]) | |
.padding(0.4); | |
var y = d3.scaleLinear() | |
.range([height, 0]); | |
var xAxis = d3.axisBottom(x).tickSize([]).tickPadding(10); | |
var yAxis = d3.axisLeft(y).tickFormat(formatPercent); | |
var dataset = [{"year":"2015", "value": .77}, | |
{"year":"2016", "value": .88}, | |
{"year":"2017", "value": .95}, | |
{"year":"2018", "value": .98}]; | |
x.domain(dataset.map(function(d) { return d.year; })); | |
y.domain([0, d3.max(dataset, function(d) { return d.value; })]); | |
svg.append("g") | |
.attr("class", "x axis") | |
.style("stroke", "#898989") | |
.style("fill-opacity", .9) | |
.style("stroke-width", ".7") | |
.attr("transform", "translate(0," + height + ")") | |
.call(xAxis); | |
svg.append("g") | |
.attr("class","y axis") | |
.attr("class","y axis") | |
.call(yAxis); | |
svg.selectAll(".bar") | |
.data(dataset) | |
.enter().append("rect") | |
.attr("class", "bar") | |
.style("display", function(d) { return d.value === null ? "none" : null; }) | |
.style("fill", function(d){ | |
if (d.year == "2018") { | |
return "#f26c23"; | |
} else { | |
return "#fbdbca"; | |
}}) | |
.attr("x", function(d) { return x(d.year); }) | |
.attr("width", x.bandwidth()) | |
.attr("y", function(d) { return height; }) | |
.attr("height", 0) | |
.transition() | |
.duration(600) | |
.delay(function (d, i) { | |
return i * 150; | |
}) | |
.attr("y", function(d) { return y(d.value); }) | |
.attr("height", function(d) { return height - y(d.value); }); | |
svg.selectAll(".label") | |
.data(dataset) | |
.enter() | |
.append("text") | |
.attr("class","label") | |
.style("display", function(d) { return d.value === null ? "none" : null; }) | |
.attr("x", (function(d) { | |
return x(d.year) + (x.bandwidth() / 2) -8 ; | |
})) | |
.style("fill", function(d){ | |
if (d.year == "2018") { | |
return "#f26c23"; | |
} else { | |
return "#898989"; | |
}}) | |
.style("font", function(d){ | |
if (d.year == "2018") { | |
return "16px Lato"; | |
}}) | |
.attr("y", function(d) { return height; }) | |
.attr("height", 0) | |
.transition() | |
.duration(600) | |
.delay(function (d, i) { | |
return i * 150; | |
}) | |
.text(function(d) { return formatPercent(d.value); }) | |
.attr("y", function(d) { return y(d.value) + .1; }) | |
.attr("dy", "-.7em"); | |
</script> | |
</body> |
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