Created
September 1, 2013 21:01
-
-
Save eyeseast/6407300 to your computer and use it in GitHub Desktop.
Code from my post on responsive bar charts.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<div id="chart"> | |
<h4>Percent of adults over 25 with at least a bachelor's degree:</h4> | |
<p><strong>Median:</strong> <span class="median"></span></p> | |
<small>Source: <cite><a href="http://census.gov">U.S. Census Bureau</a></cite>, via <cite><a href="http://beta.censusreporter.org/compare/01000US/040/table/?release=acs2011_1yr&table=B15003">Census Reporter</a></cite></small> | |
</div> |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
var url = "/visible-data/data/census/bachelors-degrees.csv" | |
, margin = {top: 30, right: 10, bottom: 30, left: 10} | |
, width = parseInt(d3.select('#chart').style('width'), 10) | |
, width = width - margin.left - margin.right | |
, height = 200 // placeholder | |
, barHeight = 20 | |
, spacing = 3 | |
, percent = d3.format('%'); | |
// scales and axes | |
var x = d3.scale.linear() | |
.range([0, width]) | |
.domain([0, .4]); // hard-coding this because I know the data | |
var y = d3.scale.ordinal(); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.tickFormat(percent); | |
// create the chart | |
var chart = d3.select('#chart').append('svg') | |
.style('width', (width + margin.left + margin.right) + 'px') | |
.append('g') | |
.attr('transform', 'translate(' + [margin.left, margin.top] + ')'); | |
d3.csv(url).row(function(d) { | |
d.Total = +d.Total; | |
d["Bachelor's degree"] = +d["Bachelor's degree"]; | |
d.percent = d["Bachelor's degree"] / d.Total; | |
return d; | |
}).get(function(err, data) { | |
// sort | |
data = _.sortBy(data, 'percent').reverse(); | |
// set y domain | |
y.domain(d3.range(data.length)) | |
.rangeBands([0, data.length * barHeight]); | |
// set height based on data | |
height = y.rangeExtent()[1]; | |
d3.select(chart.node().parentNode) | |
.style('height', (height + margin.top + margin.bottom) + 'px') | |
// render the chart | |
// add top and bottom axes | |
chart.append('g') | |
.attr('class', 'x axis top') | |
.call(xAxis.orient('top')); | |
chart.append('g') | |
.attr('class', 'x axis bottom') | |
.attr('transform', 'translate(0,' + height + ')') | |
.call(xAxis.orient('bottom')); | |
var bars = chart.selectAll('.bar') | |
.data(data) | |
.enter().append('g') | |
.attr('class', 'bar') | |
.attr('transform', function(d, i) { return 'translate(0,' + y(i) + ')'; }); | |
bars.append('rect') | |
.attr('class', 'background') | |
.attr('height', y.rangeBand()) | |
.attr('width', width); | |
bars.append('rect') | |
.attr('class', 'percent') | |
.attr('height', y.rangeBand()) | |
.attr('width', function(d) { return x(d.percent); }) | |
bars.append('text') | |
.text(function(d) { return d.Name; }) | |
.attr('class', 'name') | |
.attr('y', y.rangeBand() - 5) | |
.attr('x', spacing); | |
// add median ticks | |
var median = d3.median(data, function(d) { return d.percent; }); | |
d3.select('span.median').text(percent(median)); | |
bars.append('line') | |
.attr('class', 'median') | |
.attr('x1', x(median)) | |
.attr('x2', x(median)) | |
.attr('y1', 1) | |
.attr('y2', y.rangeBand() - 1); | |
}); | |
// resize | |
d3.select(window).on('resize', resize); | |
function resize() { | |
// update width | |
width = parseInt(d3.select('#chart').style('width'), 10); | |
width = width - margin.left - margin.right; | |
// resize the chart | |
x.range([0, width]); | |
d3.select(chart.node().parentNode) | |
.style('height', (y.rangeExtent()[1] + margin.top + margin.bottom) + 'px') | |
.style('width', (width + margin.left + margin.right) + 'px'); | |
chart.selectAll('rect.background') | |
.attr('width', width); | |
chart.selectAll('rect.percent') | |
.attr('width', function(d) { return x(d.percent); }); | |
// update median ticks | |
var median = d3.median(chart.selectAll('.bar').data(), | |
function(d) { return d.percent; }); | |
chart.selectAll('line.median') | |
.attr('x1', x(median)) | |
.attr('x2', x(median)); | |
// update axes | |
chart.select('.x.axis.top').call(xAxis.orient('top')); | |
chart.select('.x.axis.bottom').call(xAxis.orient('bottom')); | |
} | |
// highlight code blocks | |
hljs.initHighlighting(); |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
.bar rect { | |
stroke: #fff; | |
shape-rendering: crispEdges; | |
} | |
.bar rect.background { | |
fill: #eee; | |
} | |
.bar rect.percent { | |
fill: #74c476; | |
} | |
.bar:hover rect.percent { | |
fill: #a1d99b; | |
} | |
.bar text { | |
font-size: 12px; | |
fill: #333; | |
} | |
.axis line { | |
stroke: #ccc; | |
stroke-width: 1; | |
} | |
line.median { | |
stroke: #777; | |
stroke-width: 1; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment