|
<!DOCTYPE html> |
|
<meta charset="utf-8"> |
|
<style> /* set the CSS */ |
|
|
|
body { font: 12px Arial;} |
|
|
|
path { |
|
stroke: steelblue; |
|
stroke-width: 2; |
|
fill: none; |
|
} |
|
|
|
.axis path, |
|
.axis line { |
|
fill: none; |
|
stroke: grey; |
|
stroke-width: 1; |
|
shape-rendering: crispEdges; |
|
} |
|
|
|
.area { |
|
fill: url(#area-gradient); |
|
stroke-width: 0px; |
|
} |
|
|
|
</style> |
|
<body> |
|
|
|
<!-- load the d3.js library --> |
|
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min.js"></script> |
|
|
|
<script> |
|
|
|
// Set the dimensions of the canvas / graph |
|
var margin = {top: 30, right: 20, bottom: 30, left: 50}, |
|
width = 600 - margin.left - margin.right, |
|
height = 270 - margin.top - margin.bottom; |
|
|
|
// Parse the date / time |
|
var parseDate = d3.time.format("%d-%b-%y").parse; |
|
|
|
// 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); |
|
|
|
// Define the area fill |
|
var area = d3.svg.area() |
|
.x(function(d) { return x(d.date); }) |
|
.y0(height) |
|
.y1(function(d) { return y(d.close); }); |
|
|
|
// Adds the svg canvas |
|
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 + ")"); |
|
|
|
// Get the data |
|
d3.csv("data.csv", function(error, 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; })]); |
|
|
|
svg.append("linearGradient") |
|
.attr("id", "area-gradient") |
|
.attr("gradientUnits", "userSpaceOnUse") |
|
.attr("x1", 0).attr("y1", y(0)) |
|
.attr("x2", 0).attr("y2", y(1000)) |
|
.selectAll("stop") |
|
.data([ |
|
{offset: "0%", color: "red"}, |
|
{offset: "30%", color: "red"}, |
|
{offset: "45%", color: "black"}, |
|
{offset: "55%", color: "black"}, |
|
{offset: "60%", color: "lawngreen"}, |
|
{offset: "100%", color: "lawngreen"} |
|
]) |
|
.enter().append("stop") |
|
.attr("offset", function(d) { return d.offset; }) |
|
.attr("stop-color", function(d) { return d.color; }); |
|
|
|
// Add the area path. |
|
svg.append("path") |
|
.datum(data) |
|
.attr("class", "area") |
|
.attr("d", area); |
|
|
|
// Add the X Axis |
|
svg.append("g") |
|
.attr("class", "x axis") |
|
.attr("transform", "translate(0," + height + ")") |
|
.call(xAxis); |
|
|
|
// Add the Y Axis |
|
svg.append("g") |
|
.attr("class", "y axis") |
|
.call(yAxis); |
|
|
|
}); |
|
|
|
</script> |
|
</body> |
