sketch of bar chart for displaying ratios (as percentage)
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December 3, 2017 16:42
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d3 | ratio bar chart
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var render = (function () { | |
var svg = d3.select('svg') | |
var vis = svg.select('#vis') | |
var width = +svg.attr('width') | |
var height = +svg.attr('height') | |
var xScale = d3.scaleLinear() | |
.domain([0, 100]) | |
.range([0, width]) | |
// append wrap | |
var wrap = vis.append('g') | |
.attr('class', 'ratio-wrap') | |
// append first rect | |
var firstRect = wrap.append('rect') | |
.attr('height', 88) | |
.attr('x', 0) | |
.attr('y', height / 2 - 50) | |
.style('fill', '#fbae17') | |
// append second rect | |
var scndRect = wrap.append('rect') | |
.attr('height', 88) | |
.attr('x', 0) | |
.attr('y', height / 2 - 50) | |
.style('fill', '#0095a3') | |
// append values | |
var label = vis.append('text') | |
.attr('class', 'ratio-label') | |
.attr('y', height / 2 + 5) | |
.style('text-anchor', 'middle') | |
// .style('dominant-baseline', 'central') | |
.style('font-size', '36px') | |
.style('fill', '#dddddd') | |
function update (data) { | |
// update the first rect | |
firstRect.attr('width', xScale(data[0])) | |
// update the second rect | |
scndRect.attr('width', xScale(data[1])) | |
// start the first rect after the first ends | |
.attr('x', xScale(data[0])) | |
// append the label | |
label | |
.attr('x', function () { | |
// ensure there is enough space to display numbers | |
console.log('xScale(data[0])', xScale(data[0])) | |
if (xScale(data[0]) < 90 || xScale(data[0]) > (width - 90)) { | |
return width / 2 | |
} else { | |
return xScale(data[0]) | |
} | |
}) | |
.text(data[0] + ' : ' + data[1]) | |
} | |
// expose the update | |
return update | |
})() |
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="utf-8"> | |
<style> | |
html, body { height: 100%; } | |
body { | |
font-family: Consolas, monaco, monospace; | |
background: #dddddd; | |
width: 900px; | |
margin: 0 auto; | |
} | |
section { | |
padding-top: 30vh; | |
} | |
h3 { | |
margin: 0; | |
color: #fe9f97; | |
} | |
</style> | |
</head> | |
<body> | |
<section class="stats"> | |
<h3>Ratio1 : Ratio2</h3> | |
<svg width="900" height="100"> | |
<g id="vis"></g> | |
</svg> | |
</section> | |
<script src="https://d3js.org/d3.v4.min.js"></script> | |
<!-- d3 code --> | |
<script src=".script-compiled.js" charset="utf-8"></script> | |
<!-- render code --> | |
<script> | |
// render an update | |
render([57, 43]) | |
d3.interval(function() { | |
let v1 = Math.floor(d3.randomUniform(5, 100)()) | |
let v2 = 100 - v1 | |
return render([v1, v2]); | |
}, 2000); | |
</script> | |
</body> | |
</html> | |
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const render = (function () { | |
const svg = d3.select('svg') | |
const vis = svg.select('#vis') | |
const width = +svg.attr('width') | |
const height = +svg.attr('height') | |
const xScale = d3.scaleLinear() | |
.domain([0, 100]) | |
.range([0, width]) | |
// append wrap | |
const wrap = vis.append('g') | |
.attr('class', 'ratio-wrap') | |
// append first rect | |
const firstRect = wrap.append('rect') | |
.attr('height', 88) | |
.attr('x', 0) | |
.attr('y', height / 2 - 50) | |
.style('fill', '#fbae17') | |
// append second rect | |
const scndRect = wrap.append('rect') | |
.attr('height', 88) | |
.attr('x', 0) | |
.attr('y', height / 2 - 50) | |
.style('fill', '#0095a3') | |
// append values | |
const label = vis.append('text') | |
.attr('class', 'ratio-label') | |
.attr('y', height / 2 + 5) | |
.style('text-anchor', 'middle') | |
// .style('dominant-baseline', 'central') | |
.style('font-size', '36px') | |
.style('fill', '#dddddd') | |
function update (data) { | |
// update the first rect | |
firstRect.attr('width', xScale(data[0])) | |
// update the second rect | |
scndRect.attr('width', xScale(data[1])) | |
// start the first rect after the first ends | |
.attr('x', xScale(data[0])) | |
// append the label | |
label | |
.attr('x', function () { | |
// ensure there is enough space to display numbers | |
console.log('xScale(data[0])', xScale(data[0])) | |
if (xScale(data[0]) < 90 || xScale(data[0]) > (width - 90)) { | |
return width / 2 | |
} else { | |
return xScale(data[0]) | |
} | |
}) | |
.text(data[0] + ' : ' + data[1]) | |
} | |
// expose the update | |
return update | |
})() |
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