Built with blockbuilder.org
Created
January 9, 2017 12:48
-
-
Save adry34160/2488ad5a169f17d40b632b71c08e3047 to your computer and use it in GitHub Desktop.
22 - Simple d3.js bar chart
This file contains 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
license: mit |
This file contains 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
date | value | |
---|---|---|
2013-01 | 53 | |
2013-02 | 165 | |
2013-03 | 269 | |
2013-04 | 344 | |
2013-05 | 376 | |
2013-06 | 410 | |
2013-07 | 421 | |
2013-08 | 405 | |
2013-09 | 376 | |
2013-10 | 359 | |
2013-11 | 392 | |
2013-12 | 433 | |
2014-01 | 455 | |
2014-02 | 478 |
This file contains 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
<!DOCTYPE html> | |
<head> | |
<meta charset="utf-8"> | |
<style> | |
.axis { | |
font: 10px sans-serif; | |
} | |
.axis path, | |
.axis line { | |
fill: none; | |
stroke: #000; | |
shape-rendering: crispEdges; | |
} | |
</style> | |
</head> | |
<body> | |
<script src="d3js.org/d3.v3.min.js"></script> | |
<script> | |
var margin = {top: 20, right: 20, bottom: 70, left: 40}, | |
width = 600 - margin.left - margin.right, | |
height = 300 - margin.top - margin.bottom; | |
// Parse the date / time | |
var parseDate = d3.time.format("%Y-%m").parse; | |
var x = d3.scale.ordinal().rangeRoundBands([0, width], .05); | |
var y = d3.scale.linear().range([height, 0]); | |
var xAxis = d3.svg.axis() | |
.scale(x) | |
.orient("bottom") | |
.tickFormat(d3.time.format("%Y-%m")); | |
var yAxis = d3.svg.axis() | |
.scale(y) | |
.orient("left") | |
.ticks(10); | |
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 + ")"); | |
d3.csv("bar-data.csv", function(error, data) { | |
data.forEach(function(d) { | |
d.date = parseDate(d.date); | |
d.value = +d.value; | |
}); | |
x.domain(data.map(function(d) { return d.date; })); | |
y.domain([0, d3.max(data, function(d) { return d.value; })]); | |
svg.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(0," + height + ")") | |
.call(xAxis) | |
.selectAll("text") | |
.style("text-anchor", "end") | |
.attr("dx", "-.8em") | |
.attr("dy", "-.55em") | |
.attr("transform", "rotate(-90)" ); | |
svg.append("g") | |
.attr("class", "y axis") | |
.call(yAxis) | |
.append("text") | |
.attr("transform", "rotate(-90)") | |
.attr("y", 6) | |
.attr("dy", ".71em") | |
.style("text-anchor", "end") | |
.text("Value ($)"); | |
svg.selectAll("bar") | |
.data(data) | |
.enter().append("rect") | |
.style("fill", "steelblue") | |
.attr("x", function(d) { return x(d.date); }) | |
.attr("width", x.rangeBand()) | |
.attr("y", function(d) { return y(d.value); }) | |
.attr("height", function(d) { return height - y(d.value); }); | |
}); | |
</script> | |
</body> | |
</body> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment