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@areologist
Last active July 29, 2017 11:11
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vertical bars
license: mit
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v4.min.js"></script>
<style>
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
.chart {
background-color: #f6fafc;
}
.chart svg {
background: white;
border: 1px solid #ddd;
}
.bar {
fill: #aaa;
opacity: 0.5;
cursor: pointer;
}
.month-label {
fill: #111;
font-size: 15px;
opacity: 0.6;
}
.bar.active,
.month-label.active {
fill: #0f6ba8;
opacity: 1;
transition: opacity, fill 140ms ease-in;
}
.overlay {
fill: transparent;
}
.tick, .domain {
pointer-events: none;
}
.year {
font-family: Helvetica, Arial;
font-weight: bold;
fill: #444;
text-anchor: start
}
text {
font-size: 15px;
}
</style>
</head>
<body>
<div class="chart"></div>
<script>
const margin = { top: 25, right: 25, bottom: 60, left: 70 };
const width = 1100 - margin.left - margin.right;
const height = 300 - margin.top - margin.bottom;
const fullWidth = width + margin.left + margin.right;
const fullHeight = height + margin.top + margin.bottom;
const data = [
{ amount: 2900, month: '06-2016' },
{ amount: 2090, month: '07-2016' },
{ amount: 870, month: '08-2016' },
{ amount: 2340, month: '09-2016' },
{ amount: 1880, month: '10-2016' },
{ amount: 960, month: '11-2016' },
{ amount: 340, month: '12-2016' },
{ amount: 2180, month: '01-2017' },
{ amount: 1870, month: '02-2017' },
{ amount: 434, month: '03-2017' },
{ amount: 340, month: '04-2017' },
{ amount: 940, month: '05-2017' }
];
const svg = d3.select('.chart')
.append('svg')
.attr('width', width + margin.left + margin.right)
.attr('height', height + margin.top + margin.bottom)
.call(responsivefy)
.append('g')
.attr('transform', 'translate(' + margin.left + ', ' + margin.top + ')');
const parse = d3.timeParse('%m-%Y');
data.forEach(d => (d.date = parse(d.month)));
const xScale = d3.scaleBand()
.padding(0.1)
.domain(data.map(d => d.date))
.range([0, width]);
const yScale = d3.scaleLinear()
.domain([0, d3.max(data, d => d.amount)])
.range([height, 0]);
svg.selectAll('.bar')
.data(data)
.enter()
.append('rect')
.attr('class', 'bar')
.attr('x', d => xScale(d.date))
.attr('y', d => height)
.attr('width', xScale.bandwidth())
.transition()
.duration(600)
.ease(d3.easePolyOut)
.attr('y', d => yScale(d.amount))
.attr('height', d => height - yScale(d.amount))
.each((d, i, a) =>
d3.select(a[i])
.attr('data-key', d.date.toISOString()));
svg.selectAll('.overlay')
.data(data)
.enter()
.append('rect')
.attr('class', 'overlay')
.attr('x', d => xScale(d.date))
.attr('y', 0)
.attr('width', xScale.bandwidth())
.attr('height', height + 30)
.attr('fill', 'transparent')
.style('cursor', 'pointer')
.on('mouseover', d =>
d3.selectAll(`[data-key="${d.date.toISOString()}"]`)
.classed('active', true))
.on('mouseout', d =>
d3.selectAll(`[data-key="${d.date.toISOString()}"]`)
.classed('active', false));
const yAxis = d3.axisLeft(yScale.nice())
.tickFormat(d3.format('$,.0f'))
.ticks(4);
svg.append('g')
.call(yAxis);
const format = window.innerWidth < 960 ? '%b' : '%B';
const xAxis = d3.axisBottom(xScale)
.tickFormat(d3.timeFormat(format));
const xAxisGroup = svg.append('g')
.attr('transform', `translate(0, ${height})`)
.call(xAxis);
xAxisGroup
.selectAll('text')
.attr('class', 'month-label');
xAxisGroup
.selectAll('text')
.each((d, i, a) => {
d3.select(a[i])
.attr('data-key', d.toISOString());
if (d.getMonth() === 0) {
svg.append('g')
.attr('transform',
`translate(${i * xScale.step() + 10}, ${height + 45})`)
.append('text')
.text(`${d.getFullYear()}`)
.attr('class', 'year');
}
});
///////
function responsivefy(svg) {
// get container + svg aspect ratio
var container = d3.select(svg.node().parentNode),
width = parseInt(svg.style("width")),
height = parseInt(svg.style("height")),
aspect = width / height;
// add viewBox and preserveAspectRatio properties,
// and call resize so that svg resizes on inital page load
svg.attr("viewBox", "0 0 " + width + " " + height)
.attr("preserveAspectRatio", "xMinYMid")
.call(resize);
// to register multiple listeners for same event type,
// you need to add namespace, i.e., 'click.foo'
// necessary if you call invoke this function for multiple svgs
// api docs: https://github.com/mbostock/d3/wiki/Selections#on
d3.select(window).on("resize." + container.attr("id"), resize);
// get width of container and resize svg to fit it
function resize() {
var targetWidth = parseInt(container.style("width"));
svg.attr("width", targetWidth);
svg.attr("height", Math.round(targetWidth / aspect));
}
}
</script>
</body>
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