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October 19, 2018 16:03
Bar Chart | animated | d3 v5
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license: mit |
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<!DOCTYPE html> | |
<head> | |
<meta charset="utf-8"> | |
<script src="https://d3js.org/d3.v5.min.js"></script> | |
<style> | |
:root { --var-color-grey: #898989; } | |
body { | |
margin:0; | |
position:fixed; | |
top:0; | |
right:0; | |
bottom:0; | |
left:0; | |
font-family: Helvetica; ; | |
} | |
text { | |
font-family: Helvetica; | |
color: var(--var-color-grey); | |
} | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: var(--var-color-grey); | |
shape-rendering: crispEdges; | |
} | |
.x.axis {font-size: 15px; } | |
.y.axis {font-size: 12px; } | |
</style> | |
<body> | |
<script> | |
var margin = {top: 40, right: 30, bottom: 30, left: 50}, | |
width = 460 - margin.left - margin.right, | |
height = 320 - margin.top - margin.bottom; | |
var greyColor = "#898989"; | |
var barColor = d3.interpolateInferno(0.4); | |
var highlightColor = d3.interpolateInferno(0.3); | |
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":"2014", "value": .07}, | |
{"year":"2015", "value": .13}, | |
{"year":"2016", "value": .56}, | |
{"year":"2017", "value": .95}, | |
{"year":"2018", "value": .81}]; | |
x.domain(dataset.map( d => { return d.year; })); | |
// y.domain([0, d3.max(dataset, d => { return d.value; })]); | |
y.domain([0, 1]); | |
svg.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(0," + height + ")") | |
.call(xAxis); | |
svg.append("g") | |
.attr("class","y axis") | |
.call(yAxis); | |
svg.selectAll(".bar") | |
.data(dataset) | |
.enter().append("rect") | |
.attr("class", "bar") | |
.style("display", d => { return d.value === null ? "none" : null; }) | |
.style("fill", d => { | |
return d.value === d3.max(dataset, d => { return d.value; }) | |
? highlightColor : barColor | |
}) | |
.attr("x", d => { return x(d.year); }) | |
.attr("width", x.bandwidth()) | |
.attr("y", d => { return height; }) | |
.attr("height", 0) | |
.transition() | |
.duration(750) | |
.delay(function (d, i) { | |
return i * 150; | |
}) | |
.attr("y", d => { return y(d.value); }) | |
.attr("height", d => { return height - y(d.value); }); | |
svg.selectAll(".label") | |
.data(dataset) | |
.enter() | |
.append("text") | |
.attr("class", "label") | |
.style("display", d => { return d.value === null ? "none" : null; }) | |
.attr("x", ( d => { return x(d.year) + (x.bandwidth() / 2) -8 ; })) | |
.style("fill", d => { | |
return d.value === d3.max(dataset, d => { return d.value; }) | |
? highlightColor : greyColor | |
}) | |
.attr("y", d => { return height; }) | |
.attr("height", 0) | |
.transition() | |
.duration(750) | |
.delay((d, i) => { return i * 150; }) | |
.text( d => { return formatPercent(d.value); }) | |
.attr("y", d => { return y(d.value) + .1; }) | |
.attr("dy", "-.7em"); | |
</script> | |
</body> |
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