Created
May 21, 2014 17:28
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Line chart with d3.js step 1
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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>Business quote demo</title> | |
<meta charset="utf-8"> | |
<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script> | |
<script type="text/javascript" src="d3.js" charset="utf-8"></script> | |
<style> | |
body { | |
font: 12px sans-serif; | |
background-color: #fafafa; | |
padding: 0; | |
margin: 0; | |
color: #353535; | |
} | |
.line { | |
fill: none; | |
stroke: steelblue; | |
stroke-width: 1.5px; | |
} | |
.axis path, .axis line { | |
fill: none; | |
stroke: #000; | |
shape-rendering: crispEdges; | |
} | |
.x.axis path { | |
display: none; | |
} | |
svg { | |
float: left; | |
margin-left: 10px; | |
} | |
#info { | |
float: right; | |
width: 40%; | |
background-color: inherit; | |
height: 100vh; | |
} | |
header { | |
display: block; | |
background-color: #cd0102; | |
width: 100%; | |
height: 50px; | |
} | |
header img { | |
padding: 5px; | |
} | |
h1 { | |
margin-bottom: -20px; | |
} | |
.grid .tick { | |
stroke: lightgrey; | |
opacity: 0.7; | |
} | |
.grid path { | |
stroke-width: 0; | |
} | |
.grid .tick { | |
stroke: lightgrey; | |
opacity: 0.7; | |
} | |
.grid path { | |
stroke-width: 0; | |
} | |
#loading { | |
float: left; | |
padding-left: 10em; | |
padding-top: 10em; | |
position: absolute; | |
} | |
</style> | |
</head> | |
<body> | |
<script> | |
var myQuery = "http://query.yahooapis.com/v1/public/yql?q=select * from yahoo.finance.historicaldata where symbol in (\"AAPL\") and startDate = \"2013-01-01\" and endDate = \"2014-01-01\"&env=http%3A%2F%2Fdatatables.org%2Falltables.env&format=json"; | |
var data = $.getJSON(myQuery, draw); | |
var margin = 50, | |
width = 700, | |
height = 600; | |
var format = d3.time.format("%Y-%m-%d"); | |
function draw(data) { | |
data.query.results.quote.forEach(function(d) { | |
d.date = format.parse(d.Date); | |
d.Close = +d.Close; | |
}); | |
data.query.results.quote.sort(function(a,b) { | |
return d3.ascending(a.date, b.date); | |
}); | |
var line = d3.svg.line() | |
.x(function(d){ return x_scale(d.date); }) | |
.y(function(d){ return y_scale(d.Close); }) | |
.interpolate("linear"); | |
/* Extents */ | |
var x_extent = d3.extent(data.query.results.quote.map(function(d) { return d.date; })); | |
var y_extent = d3.extent(data.query.results.quote.map(function(d) { return +d.Close; })); | |
/* Scales */ | |
var y_scale = d3.scale.linear() | |
.domain(y_extent) | |
.range([height-margin,margin]); | |
var x_scale = d3.time.scale() | |
.domain(x_extent) | |
.range([margin, width-margin]); | |
/* Axis */ | |
var x_axis = d3.svg.axis() | |
.scale(x_scale); | |
var y_axis = d3.svg.axis() | |
.scale(y_scale).orient('left'); | |
/*Contain the viz in a SVG element, width/height already defined*/ | |
var vis = d3.select("body") | |
.append("svg") | |
.attr("width", width) | |
.attr("height", height); | |
d3.select("svg") | |
.append("g") | |
.attr("class", "x axis") | |
.attr("transform", "translate(0," + (height-margin) + ")") | |
.call(x_axis); | |
d3.select("svg") | |
.append("g") | |
.attr("class", "y axis") | |
.attr("transform", "translate(" + margin + ", 0 )") | |
.call(y_axis); | |
var path = vis.append("path") | |
.datum(data.query.results.quote) | |
.style("fill", "none") | |
.attr("class", "line") | |
.attr("d", line); | |
//Adding transition to the line drawing | |
var totalLength = path.node().getTotalLength(); | |
path | |
.attr("stroke-dasharray", totalLength + " " + totalLength) | |
.attr("stroke-dashoffset", totalLength) | |
.transition() | |
.duration(2000) | |
.ease("linear") | |
.attr("stroke-dashoffset", 0); | |
d3.select(".y.axis") | |
.append("text") | |
.text("lol much text") | |
.attr("transform", "rotate (-90, -43, 0) translate(-280)"); | |
d3.select(".x.axis") | |
.append("text") | |
.text("such axis") | |
.attr("x", function(){return (width / 2) - margin;}) | |
.attr("y", margin/1.5); | |
} /*ends function draw*/ | |
</script> | |
</body> | |
</html> |
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