Skip to content

Instantly share code, notes, and snippets.

@pavelloz pavelloz/README.md
Last active May 16, 2016

Embed
What would you like to do?
Simple d3.js bar chart
date value
2013-01 53
2013-02 165
2013-03 269
<!DOCTYPE html>
<meta charset="utf-8">
<head>
<style>
.axis {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
</style>
</head>
<body>
<script src="http://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], .6);
var y = d3.scale.linear().range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom")
.tick(function(d) {return d.date });
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.ticks(0)
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", "1em")
// .attr("transform", "rotate(-90)" );
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
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>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.