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Area Chart
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license: mit |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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<!DOCTYPE html> | |
<head> | |
<meta charset="utf-8"> | |
<script src="https://d3js.org/d3.v4.min.js"></script> | |
<style> | |
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
.chart { | |
background: lightgray; | |
border: 1px solid black; | |
} | |
</style> | |
</head> | |
<body> | |
<div class="chart"></div> | |
<script> | |
var margin = { top: 10, right: 10, bottom: 25, left: 25} | |
var width = 425 - margin.left - margin.right; | |
var height = 625 - margin.top - margin.bottom; | |
var svg = d3.select('.chart') | |
.append('svg') | |
.attr('width', width + margin.left + margin.right) | |
.attr('height', height + margin.top + margin.bottom) | |
.call(responsivefy) | |
.append('g') | |
.attr('transform', `translate(${margin.left}, ${margin.top})`) | |
var data = [ | |
{ | |
"ticker": "AMZN", | |
"values": [ | |
{ | |
"date": "2016/09/30", | |
"close": 837.31 | |
}, | |
{ | |
"date": "2016/09/29", | |
"close": 829.05 | |
}, | |
{ | |
"date": "2016/09/28", | |
"close": 828.72 | |
}, | |
{ | |
"date": "2016/09/27", | |
"close": 816.11 | |
}, | |
{ | |
"date": "2016/09/26", | |
"close": 799.16 | |
}, | |
{ | |
"date": "2016/09/23", | |
"close": 805.75 | |
}, | |
{ | |
"date": "2016/09/22", | |
"close": 804.7 | |
}, | |
{ | |
"date": "2016/09/21", | |
"close": 789.74 | |
}, | |
{ | |
"date": "2016/09/20", | |
"close": 780.22 | |
}, | |
{ | |
"date": "2016/09/19", | |
"close": 775.1 | |
}, | |
{ | |
"date": "2016/09/16", | |
"close": 778.52 | |
}, | |
{ | |
"date": "2016/09/15", | |
"close": 769.69 | |
}, | |
{ | |
"date": "2016/09/14", | |
"close": 761.09 | |
}, | |
{ | |
"date": "2016/09/13", | |
"close": 761.01 | |
}, | |
{ | |
"date": "2016/09/12", | |
"close": 771.49 | |
}, | |
{ | |
"date": "2016/09/09", | |
"close": 760.14 | |
}, | |
{ | |
"date": "2016/09/08", | |
"close": 784.06 | |
}, | |
{ | |
"date": "2016/09/07", | |
"close": 784.48 | |
}, | |
{ | |
"date": "2016/09/06", | |
"close": 788.87 | |
}, | |
{ | |
"date": "2016/09/02", | |
"close": 772.44 | |
}, | |
{ | |
"date": "2016/09/01", | |
"close": 770.62 | |
}, | |
{ | |
"date": "2016/08/31", | |
"close": 769.16 | |
}, | |
{ | |
"date": "2016/08/30", | |
"close": 767.58 | |
}, | |
{ | |
"date": "2016/08/29", | |
"close": 771.29 | |
}, | |
{ | |
"date": "2016/08/26", | |
"close": 769 | |
}, | |
{ | |
"date": "2016/08/25", | |
"close": 759.22 | |
}, | |
{ | |
"date": "2016/08/24", | |
"close": 757.25 | |
}, | |
{ | |
"date": "2016/08/23", | |
"close": 762.45 | |
}, | |
{ | |
"date": "2016/08/22", | |
"close": 759.48 | |
}, | |
{ | |
"date": "2016/08/19", | |
"close": 757.31 | |
}, | |
{ | |
"date": "2016/08/18", | |
"close": 764.46 | |
}, | |
{ | |
"date": "2016/08/17", | |
"close": 764.63 | |
}, | |
{ | |
"date": "2016/08/16", | |
"close": 764.04 | |
}, | |
{ | |
"date": "2016/08/15", | |
"close": 768.49 | |
}, | |
{ | |
"date": "2016/08/12", | |
"close": 772.56 | |
}, | |
{ | |
"date": "2016/08/11", | |
"close": 771.24 | |
}, | |
{ | |
"date": "2016/08/10", | |
"close": 768.56 | |
}, | |
{ | |
"date": "2016/08/09", | |
"close": 768.31 | |
}, | |
{ | |
"date": "2016/08/08", | |
"close": 766.56 | |
}, | |
{ | |
"date": "2016/08/05", | |
"close": 765.98 | |
}, | |
{ | |
"date": "2016/08/04", | |
"close": 760.77 | |
}, | |
{ | |
"date": "2016/08/03", | |
"close": 754.64 | |
}, | |
{ | |
"date": "2016/08/02", | |
"close": 760.58 | |
}, | |
{ | |
"date": "2016/08/01", | |
"close": 767.74 | |
}, | |
{ | |
"date": "2016/07/29", | |
"close": 758.81 | |
}, | |
{ | |
"date": "2016/07/28", | |
"close": 752.61 | |
}, | |
{ | |
"date": "2016/07/27", | |
"close": 736.67 | |
}, | |
{ | |
"date": "2016/07/26", | |
"close": 735.59 | |
}, | |
{ | |
"date": "2016/07/25", | |
"close": 739.61 | |
}, | |
{ | |
"date": "2016/07/22", | |
"close": 744.86 | |
}, | |
{ | |
"date": "2016/07/21", | |
"close": 744.43 | |
}, | |
{ | |
"date": "2016/07/20", | |
"close": 745.72 | |
}, | |
{ | |
"date": "2016/07/19", | |
"close": 739.95 | |
}, | |
{ | |
"date": "2016/07/18", | |
"close": 736.07 | |
}, | |
{ | |
"date": "2016/07/15", | |
"close": 735.44 | |
}, | |
{ | |
"date": "2016/07/14", | |
"close": 741.2 | |
}, | |
{ | |
"date": "2016/07/13", | |
"close": 742.63 | |
}, | |
{ | |
"date": "2016/07/12", | |
"close": 748.21 | |
}, | |
{ | |
"date": "2016/07/11", | |
"close": 753.78 | |
}, | |
{ | |
"date": "2016/07/08", | |
"close": 745.81 | |
}, | |
{ | |
"date": "2016/07/07", | |
"close": 736.57 | |
}, | |
{ | |
"date": "2016/07/06", | |
"close": 737.61 | |
}, | |
{ | |
"date": "2016/07/05", | |
"close": 728.1 | |
}, | |
{ | |
"date": "2016/07/01", | |
"close": 725.68 | |
} | |
] | |
}, | |
{ | |
"ticker": "GOOG", | |
"values": [ | |
{ | |
"date": "2016/09/30", | |
"close": 777.29 | |
}, | |
{ | |
"date": "2016/09/29", | |
"close": 775.01 | |
}, | |
{ | |
"date": "2016/09/28", | |
"close": 781.56 | |
}, | |
{ | |
"date": "2016/09/27", | |
"close": 783.01 | |
}, | |
{ | |
"date": "2016/09/26", | |
"close": 774.21 | |
}, | |
{ | |
"date": "2016/09/23", | |
"close": 786.9 | |
}, | |
{ | |
"date": "2016/09/22", | |
"close": 787.21 | |
}, | |
{ | |
"date": "2016/09/21", | |
"close": 776.22 | |
}, | |
{ | |
"date": "2016/09/20", | |
"close": 771.41 | |
}, | |
{ | |
"date": "2016/09/19", | |
"close": 765.7 | |
}, | |
{ | |
"date": "2016/09/16", | |
"close": 768.88 | |
}, | |
{ | |
"date": "2016/09/15", | |
"close": 771.76 | |
}, | |
{ | |
"date": "2016/09/14", | |
"close": 762.49 | |
}, | |
{ | |
"date": "2016/09/13", | |
"close": 759.69 | |
}, | |
{ | |
"date": "2016/09/12", | |
"close": 769.02 | |
}, | |
{ | |
"date": "2016/09/09", | |
"close": 759.66 | |
}, | |
{ | |
"date": "2016/09/08", | |
"close": 775.32 | |
}, | |
{ | |
"date": "2016/09/07", | |
"close": 780.35 | |
}, | |
{ | |
"date": "2016/09/06", | |
"close": 780.08 | |
}, | |
{ | |
"date": "2016/09/02", | |
"close": 771.46 | |
}, | |
{ | |
"date": "2016/09/01", | |
"close": 768.78 | |
}, | |
{ | |
"date": "2016/08/31", | |
"close": 767.05 | |
}, | |
{ | |
"date": "2016/08/30", | |
"close": 769.09 | |
}, | |
{ | |
"date": "2016/08/29", | |
"close": 772.15 | |
}, | |
{ | |
"date": "2016/08/26", | |
"close": 769.54 | |
}, | |
{ | |
"date": "2016/08/25", | |
"close": 769.41 | |
}, | |
{ | |
"date": "2016/08/24", | |
"close": 769.64 | |
}, | |
{ | |
"date": "2016/08/23", | |
"close": 772.08 | |
}, | |
{ | |
"date": "2016/08/22", | |
"close": 772.15 | |
}, | |
{ | |
"date": "2016/08/19", | |
"close": 775.42 | |
}, | |
{ | |
"date": "2016/08/18", | |
"close": 777.5 | |
}, | |
{ | |
"date": "2016/08/17", | |
"close": 779.91 | |
}, | |
{ | |
"date": "2016/08/16", | |
"close": 777.14 | |
}, | |
{ | |
"date": "2016/08/15", | |
"close": 782.44 | |
}, | |
{ | |
"date": "2016/08/12", | |
"close": 783.22 | |
}, | |
{ | |
"date": "2016/08/11", | |
"close": 784.85 | |
}, | |
{ | |
"date": "2016/08/10", | |
"close": 784.68 | |
}, | |
{ | |
"date": "2016/08/09", | |
"close": 784.26 | |
}, | |
{ | |
"date": "2016/08/08", | |
"close": 781.76 | |
}, | |
{ | |
"date": "2016/08/05", | |
"close": 782.22 | |
}, | |
{ | |
"date": "2016/08/04", | |
"close": 771.61 | |
}, | |
{ | |
"date": "2016/08/03", | |
"close": 773.18 | |
}, | |
{ | |
"date": "2016/08/02", | |
"close": 771.07 | |
}, | |
{ | |
"date": "2016/08/01", | |
"close": 772.88 | |
}, | |
{ | |
"date": "2016/07/29", | |
"close": 768.79 | |
}, | |
{ | |
"date": "2016/07/28", | |
"close": 745.91 | |
}, | |
{ | |
"date": "2016/07/27", | |
"close": 741.77 | |
}, | |
{ | |
"date": "2016/07/26", | |
"close": 738.42 | |
}, | |
{ | |
"date": "2016/07/25", | |
"close": 739.77 | |
}, | |
{ | |
"date": "2016/07/22", | |
"close": 742.74 | |
}, | |
{ | |
"date": "2016/07/21", | |
"close": 738.63 | |
}, | |
{ | |
"date": "2016/07/20", | |
"close": 741.19 | |
}, | |
{ | |
"date": "2016/07/19", | |
"close": 736.96 | |
}, | |
{ | |
"date": "2016/07/18", | |
"close": 733.78 | |
}, | |
{ | |
"date": "2016/07/15", | |
"close": 719.85 | |
}, | |
{ | |
"date": "2016/07/14", | |
"close": 720.95 | |
}, | |
{ | |
"date": "2016/07/13", | |
"close": 716.98 | |
}, | |
{ | |
"date": "2016/07/12", | |
"close": 720.64 | |
}, | |
{ | |
"date": "2016/07/11", | |
"close": 715.09 | |
}, | |
{ | |
"date": "2016/07/08", | |
"close": 705.63 | |
}, | |
{ | |
"date": "2016/07/07", | |
"close": 695.36 | |
}, | |
{ | |
"date": "2016/07/06", | |
"close": 697.77 | |
}, | |
{ | |
"date": "2016/07/05", | |
"close": 694.49 | |
}, | |
{ | |
"date": "2016/07/01", | |
"close": 699.21 | |
} | |
] | |
} | |
] | |
// data cleansing | |
var parseTime = d3.timeParse('%Y/%m/%d'); | |
data.forEach(company => { | |
company.values.forEach( d => { | |
d.date = parseTime(d.date) | |
d.close = +d.close | |
}) | |
}) | |
// console.log(data) | |
// console.log(d3.extent(data, co => d3.extent(co.values, d => d.close))); | |
// console.log([ | |
// d3.min(data, co => d3.min(co.values, d => d.close )), | |
// d3.max(data, co => d3.max(co.values, d => d.close )) | |
// ]) | |
// draw y axis | |
var yScale = d3.scaleLinear() | |
.domain([ | |
d3.min(data, co => d3.min(co.values, d => d.close )), | |
d3.max(data, co => d3.max(co.values, d => d.close )) | |
]) | |
.range([height, 0]) | |
var yAxis = d3.axisLeft(yScale) | |
svg.append('g') | |
.attr('transform', `translate(${margin.left}, ${margin.top})`) | |
.call(yAxis) | |
// draw x axis | |
var xScale = d3.scaleTime() | |
.domain([ | |
d3.min(data, co => d3.min(co.values, d => d.date)), | |
d3.max(data, co => d3.max(co.values, d => d.date)) | |
]) | |
.range([0, width]) | |
var xAxis = d3.axisBottom(xScale) | |
.ticks(5) | |
svg.append('g') | |
.attr('transform', `translate(0, ${height})`) | |
.call(xAxis) | |
// draw area chart | |
var area = d3.area() | |
.x(d => xScale(d.date)) | |
.y0(yScale(yScale.domain()[0])) | |
.y1(d => yScale(d.close)) | |
.curve(d3.curveCatmullRom.alpha(0.5)) | |
svg.selectAll('.area') | |
.data(data) | |
.enter() | |
.append('path') | |
.attr('class','area') | |
.attr('d', d => area(d.values)) | |
.style('stroke', (d, i) => ['#FF9900', '#3369E8'][i]) | |
.style('stroke-width', 2) | |
.style('fill', (d, i) => ['#FF9900', '#3369E8'][i]) | |
.style('fill-opacity', 0.5) | |
function responsivefy(svg) { | |
// get container + svg aspect ratio | |
var container = d3.select(svg.node().parentNode), | |
width = parseInt(svg.style("width")), | |
height = parseInt(svg.style("height")), | |
aspect = width / height; | |
// add viewBox and preserveAspectRatio properties, | |
// and call resize so that svg resizes on inital page load | |
svg.attr("viewBox", "0 0 " + width + " " + height) | |
.attr("preserveAspectRatio", "xMinYMid") | |
.call(resize); | |
// to register multiple listeners for same event type, | |
// you need to add namespace, i.e., 'click.foo' | |
// necessary if you call invoke this function for multiple svgs | |
// api docs: https://github.com/mbostock/d3/wiki/Selections#on | |
d3.select(window).on("resize." + container.attr("id"), resize); | |
// get width of container and resize svg to fit it | |
function resize() { | |
var targetWidth = parseInt(container.style("width")); | |
svg.attr("width", targetWidth); | |
svg.attr("height", Math.round(targetWidth / aspect)); | |
} | |
} | |
</script> | |
</body> |
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