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bytesbysophie/.block

Last active October 19, 2018 16:03
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Bar Chart | animated | d3 v5
Raw
.block
license: mit
Raw
index.html
<!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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