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@dmijalkovic
Last active October 24, 2015 07:33
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D3 graphs
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<link rel="stylesheet" href="style.css">
</head>
<body>
<script>
// Set the dimensions of the canvas / graph
var margin = {top: 30, right: 30, bottom: 40, left: 50};
var width = 800 - margin.left - margin.right;
var height = 300 - margin.top - margin.bottom;
// Set the ranges
var x = d3.time.scale().range([0, width]);
var y = d3.scale.linear().range([height, 0]);
// Define the axes
var xAxis = d3.svg.axis().scale(x)
.orient("bottom").ticks(5);
var yAxis = d3.svg.axis().scale(y)
.orient("left").ticks(5);
// Adds the svg canvas
var svgContainer = 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 + ")");
var data = [
{"date":"1-Apr-15", "close":140.61},
{"date":"15-Apr-15", "close":20.23},
{"date":"13-May-15", "close":99.00},
{"date":"21-May-15", "close":188.13},
{"date":"18-Jun-15", "close":59.13},
{"date":"28-Jul-15", "close":75.13},
{"date":"8-Aug-15", "close":109.13},
{"date":"12-Aug-15", "close":96.13}];
// Parse the date / time
var parseDate = d3.time.format("%d-%b-%y").parse;
// Get the data
data.forEach(function(d) {
d.date = parseDate(d.date);
d.close = +d.close;
});
// Scale the range of the data
x.domain(d3.extent(data, function(d) { return d.date; }));
y.domain([0, d3.max(data, function(d) { return d.close; })]);
// Add the X Axis
svgContainer.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
// Add the Y Axis
svgContainer.append("g")
.attr("class", "y axis")
.call(yAxis);
// Draw vertical grid lines
svgContainer.append("g")
.attr("class", "grid")
.attr("transform", "translate(0," + height + ")")
.call(xAxis
.tickSize(-height, 0, 0)
.tickFormat("")
)
// Draw horizontal grid lines
svgContainer.append("g")
.attr("class", "grid")
.call(yAxis
.tickSize(-width, 0, 0)
.tickFormat("")
)
svgContainer.selectAll("bar")
.data(data)
.enter().append("rect")
.style("fill", "#aec6a8")
.attr("x", function(d) { return x(d.date)-5; })
.attr("width", 10)
.attr("y", function(d) { return y(d.close); })
.attr("height", function(d) { return height - y(d.close); });
// Define the line (interpolate to smooth the line)
var valueline = d3.svg.line()
.interpolate("cardinal")
.x(function(d) { return x(d.date); })
.y(function(d) { return y(d.close); });
svgContainer.append("path")
.attr("class", "line")
.attr("d", valueline(data));
</script>
</body>
body {
margin:0;
background-color: #f5f5f5;
padding: 30px;
}
svg {
border: 1px solid #cdcdcd;
border-radius: 6px;
background-color: white;
}
path {
stroke: steelblue;
stroke-width: 2;
fill: none;
}
.axis path,
.axis line {
fill: none;
stroke: grey;
stroke-width: 1;
shape-rendering: crispEdges;
}
.grid .tick {
stroke: lightgrey;
stroke-opacity: 0.7;
shape-rendering: crispEdges;
}
.grid path {
stroke-width: 0;
}
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