IEX API
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IEX Market - Olympics Sprint
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license: gpl-3.0 | |
height: 960 |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
body { | |
background: #020202; | |
margin: auto; | |
width: 960px; | |
} | |
.tracks { | |
fill: none; | |
stroke: #494949; | |
stroke-width: 1.5px; | |
} | |
.bodies path { | |
stroke: #666666; | |
stroke-width: 1.5px; | |
} | |
.bodies .text-path { | |
stroke: none; | |
} | |
.bodies text { | |
fill: #424242; | |
font: 500 16px "Helvetica Neue"; | |
} | |
</style> | |
<body align=center bgcolor=white> | |
<div class=dropdown></div> | |
<svg width="960" height="960"></svg> | |
<script src="//d3js.org/d3.v4.0.0-alpha.21.min.js"></script> | |
<script src="karthiviz.js"></script> | |
<script> | |
function updateviz(key){ | |
d3.select("body").selectAll("svg").remove(); | |
var svg = d3.select("body").append("svg") | |
.attr('width',650) | |
.attr('height',650), | |
width = +svg.attr("width"), | |
height = +svg.attr("height"), | |
radius = Math.min(width, height) / 1.9, | |
bodyRadius = radius / 33, | |
dotRadius = bodyRadius - 8; | |
var pi = Math.PI*50; | |
var fields = data | |
var color = d3.scaleRainbow() | |
.domain([0, 360]); | |
var arcBody = d3.arc() | |
.startAngle(function(d) { return bodyRadius / d.radius; }) | |
.endAngle(function(d) { return -pi*d.value/3000 - bodyRadius / d.radius; }) | |
.innerRadius(function(d) { return d.radius/2 - bodyRadius; }) | |
.outerRadius(function(d) { return d.radius/2 + bodyRadius; }) | |
.cornerRadius(bodyRadius); | |
var arcTextPath = d3.arc() | |
.startAngle(function(d) { return -bodyRadius / d.radius; }) | |
.endAngle(function(d) { return -pi; }) .innerRadius(function(d) { return d.radius/2; }) | |
.outerRadius(function(d) { return d.radius/2 }); | |
var g = svg.append("g") | |
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
g.append("g") | |
.attr("class", "tracks") | |
.selectAll("circle") | |
.data(fields) | |
.enter().append("circle") | |
.attr("r", function(d) { return d.radius/2; }); | |
var body = g.append("g") | |
.attr("class", "bodies") | |
.selectAll("g") | |
.data(fields) | |
.enter().append("g"); | |
body.append("path") | |
.attr("d", function(d) { | |
return arcBody(d) | |
+ "M0," + (dotRadius - d.radius) | |
// + "a" + dotRadius + "," + dotRadius + " 0 0,1 0," + -dotRadius * 2 | |
// + "a" + dotRadius + "," + dotRadius + " 0 0,1 0," + dotRadius * 2; | |
}); | |
body.append("path") | |
.attr("class", "text-path") | |
.attr("id", function(d, i) { return "body-text-path-" + i; }) | |
.attr("d", arcTextPath); | |
var bodyText = body.append("text") | |
.attr("dy", ".35em") | |
.append("textPath") | |
.attr("xlink:href", function(d, i) { return "#body-text-path-" + i; }); | |
tick(); | |
d3.timer(tick); | |
function tick() { | |
var now = Date.now(); | |
fields.forEach(function(d,i) { | |
var start = d.interval(now), | |
end = d.interval.offset(start, 6); | |
d.angle = Math.round((now - start) / (end - start) * 360 * 100) / 100*i; | |
}); | |
body | |
.style("fill", function(d) { return color(d.angle); }) | |
.attr("transform", function(d) { return "rotate(" + d.angle + ")"; }); | |
bodyText | |
.attr("startOffset", function(d, i) { return d.angle <= 90 || d.angle > 270 ? "100%" : "0%"; }) | |
.attr("text-anchor", function(d, i) { return d.angle <= 90 || d.angle > 270 ? "end" : "start"; }) | |
.text(function(d) { return d.name | |
+' ('+formatAbbreviation(d[key])+')'; | |
}); | |
} | |
function formatDate(d) { | |
d = new Date(d).getDate(); | |
switch (10 <= d && d <= 19 ? 10 : d % 10) { | |
case 1: d += "st"; break; | |
case 2: d += "nd"; break; | |
case 3: d += "rd"; break; | |
default: d += "th"; break; | |
} | |
return d; | |
} | |
} | |
</script> |
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d3.jsonp = function (url, callback) { | |
function rand() { | |
var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz', | |
c = '', i = -1; | |
while (++i < 15) c += chars.charAt(Math.floor(Math.random() * 52)); | |
return c; | |
} | |
function create(url) { | |
var e = url.match(/callback=d3.jsonp.(\w+)/), | |
c = e ? e[1] : rand(); | |
d3.jsonp[c] = function(data) { | |
callback(data); | |
delete d3.jsonp[c]; | |
script.remove(); | |
}; | |
return 'd3.jsonp.' + c; | |
} | |
var cb = create(url), | |
script = d3.select('head') | |
.append('script') | |
.attr('type', 'text/javascript') | |
.attr('src', url.replace(/(\{|%7B)callback(\{|%7D)/, cb)); | |
}; | |
d3.jsonp("https://api.iextrading.com/1.0/market?callback=visualise"); | |
function visualise(data){ | |
window.data = data; | |
var option = [ "marketPercent", "volume", "tapeA", "tapeB", "tapeC"] | |
var key = option[0] | |
var select = d3.select('.dropdown') | |
.append('select') | |
.style('font-size', '20px') | |
.attr('class','select') | |
.on('change',onchange); | |
var options = select | |
.selectAll('option') | |
.data(option).enter() | |
.append('option') | |
.text(function (d) { return d; }); | |
function onchange() { | |
renderviz(d3.select('select').property('value')) | |
} | |
data.forEach(function(d,i) { | |
d.marketPercent = (d.marketPercent*100).toFixed(2); | |
}); | |
renderviz(key) | |
}; | |
function renderviz(key) { | |
var circs = [] | |
data.forEach(function(d){ circs.push(d[key])}) | |
//console.log(d3.sum(circs).toFixed(0)) | |
var rscale = d3.scaleSqrt() | |
.domain([0,(d3.sum(circs)).toFixed(0)]) | |
.range([0,100]) | |
data.forEach(function(d,i) { | |
d.name = d.venueName; | |
d.value = rscale(d[key]).toFixed(2); | |
d.interval = d3.timeMinute; | |
d.format = d3.format(","); | |
}); | |
data = sanitize(data) | |
data.forEach(function(d,i) { | |
d.radius = i*2*20; | |
}); | |
console.log(data) | |
var color = d3.scaleOrdinal(d3.schemeCategory20c);; | |
color = function(d) { | |
if(d.name == "IEX"){return "orange"} | |
return "darkcyan"; | |
} | |
window.color = color; | |
updateviz(key); | |
//setuptip(key); | |
} | |
function setuptip(key) { | |
var format = d3.format(",") | |
tip = d3.tip() | |
.attr('class', 'd3-tip') | |
.html(function(d) { return d.name + ": " + format(d[key]) }); | |
d3.selectAll(".arc").call(tip) | |
d3.selectAll('.arc') | |
.data(data) | |
.on('mouseover', tip.show) | |
.on('mouseout', tip.hide); | |
} | |
function sanitize(data) { | |
data.sort(function (a, b) { | |
var v1 = a.value; | |
var v2 = b.value; | |
return (v1 - v2 ) | |
}); | |
return data; | |
} | |
formatAbbreviation = function(x) { | |
var formatNumber = d3.format(".0f"), | |
formatPercent = d3.format(".2f"), | |
formatBillion = function(x) { return "$" + formatNumber(x / 1e9) + "B"; }, | |
formatMillion = function(x) { return "$" + formatNumber(x / 1e6) + "M"; }, | |
formatThousand = function(x) { return "$" + formatNumber(x / 1e3) + "k"; }; | |
var v = Math.abs(x); | |
return (v >= .9995e9 ? formatBillion | |
: v >= .9995e6 ? formatMillion | |
: v >= .9995e3 ? formatThousand | |
: formatPercent)(x); | |
} | |
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