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September 21, 2017 07:39
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Make d3 responsive
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license: mit |
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<!DOCTYPE html> | |
<head> | |
<title>Make D3 Responsive</title> | |
<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: lightgray; | |
border: 1px solid black; | |
/* width: 425px; | |
height: 625px;*/ | |
} | |
</style> | |
</head> | |
<body> | |
<div class="chart"></div> | |
<script> | |
var margin = {top: 10, right: 25, bottom: 35, left: 40 } | |
var width = 425 - margin.left - margin.right | |
var height = 625 - margin.top - margin.bottom | |
var 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}, ${margin.top})`) | |
svg.append('rect') | |
.attr('width', width) | |
.attr('height', height) | |
.attr('fill', 'lightblue') | |
.attr('stroke', 'lightgreen') | |
// draw xAxis | |
var xScale = d3.scaleTime() | |
.domain([new Date(2017,8,21,9,0), new Date(2017,8,21,10,0)]) | |
.range([0, width]) | |
var xAxis = d3.axisBottom(xScale) | |
.ticks(5) | |
.tickSize(10) | |
.tickPadding(5) | |
svg.append('g') | |
.attr('transform', `translate(${0}, ${height})`) | |
.call(xAxis) | |
// draw yAxis | |
var yScale = d3.scaleLinear() | |
.domain([0, 100]) | |
.range([height, 0]) | |
var yAxis = d3.axisLeft(yScale) | |
.ticks(10) | |
.tickSize(10) | |
.tickPadding(10) | |
svg.append('g') | |
.attr('transform', `transform(${margin.left}, ${margin.top})`) | |
.call(yAxis) | |
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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