Skip to content

Instantly share code, notes, and snippets.

@fawcett
Last active February 23, 2016 19:42
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save fawcett/d75ef0d214006d1beff3 to your computer and use it in GitHub Desktop.
Save fawcett/d75ef0d214006d1beff3 to your computer and use it in GitHub Desktop.
d3.js Line Chart Example
<!DOCTYPE html>
<meta charset="utf-8">
<style>
body {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
.x.axis path {
display: none;
}
.line {
fill: none;
stroke: steelblue;
stroke-width: 1.5px;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
var margin = {top: 20, right: 20, bottom: 30, left: 50},
width = 960 - margin.left - margin.right,
height = 500 - margin.top - margin.bottom;
var formatDate = d3.time.format("%Y-%m-%d %H:%M:%S");
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height, 0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
var line = d3.svg.line()
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.session_rate); });
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.tsv("logical_io.tsv", type, function(error, data) {
if (error) throw error;
x.domain(d3.extent(data, function(d) { return d.date; }));
y.domain(d3.extent(data, function(d) { return d.session_rate; }));
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
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("Logical IO");
svg.append("path")
.datum(data)
.attr("class", "line")
.attr("d", line);
});
function type(d) {
d.date = formatDate.parse(d.date);
d.session_rate = +d.session_rate;
return d;
}
</script>
date session_rate
2016-02-19 14:50:03 1445
2016-02-19 14:51:03 2963
2016-02-19 14:52:02 5342
2016-02-19 14:53:03 40
2016-02-19 14:54:02 8
2016-02-19 14:55:03 120
2016-02-19 14:56:02 1912
2016-02-19 14:57:03 1995
2016-02-19 14:58:03 26
2016-02-19 14:59:03 2290
2016-02-19 15:00:03 1809
2016-02-19 15:01:02 971
2016-02-19 15:02:02 55
2016-02-19 15:03:03 10
2016-02-19 15:04:03 640
2016-02-19 15:05:02 2072
2016-02-19 15:06:03 703
2016-02-19 15:07:02 8581
2016-02-19 15:08:03 6
2016-02-19 15:09:03 14
2016-02-19 15:10:03 3115
2016-02-19 15:11:03 71
2016-02-19 15:12:02 7
2016-02-19 15:13:04 41
2016-02-19 15:14:02 47
2016-02-19 15:15:02 8
2016-02-19 15:16:03 464
2016-02-19 15:19:03 30
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment