#Art Maybe? What started out as a donut chart has become something else entirely....
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October 1, 2016 21:28
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="utf-8"> | |
<title>Art - Lines</title> | |
<script src="https://d3js.org/d3.v4.js"></script> | |
<script src="https://d3js.org/d3-selection-multi.v1.min.js"></script> | |
</head> | |
<body> | |
<div id="chartArea"> | |
</div> | |
<script src="main_donut.js"></script> | |
</body> | |
</html> |
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const divH = window.innerHeight; | |
const divW = window.innerWidth; | |
const margin = {top: 10, right: 10, bottom: 10, left: 10}; | |
const width = divW - margin.left - margin.right; | |
const height = divH - margin.top - margin.bottom; | |
const smallestDim = height < width ? height : width; | |
const outerRadius = smallestDim / 3.5 | |
const innerRadius = outerRadius / 1.5; | |
const data = []; | |
const strokeSmall = '.1px' | |
const strokeLarge = '5px' | |
const baseColour = "maroon" | |
for(var x = 0; x < 3000; x ++){ | |
Math.random()*4 > 1 ? data.push(Math.random()*250 + 50) : data.push(-1 * Math.random()*100) | |
} | |
var pie = d3.pie() | |
.value((d) => 10) | |
.padAngle(.010); | |
var arc = d3.arc() | |
.padRadius(outerRadius); | |
var svg = d3.select("#chartArea").append("svg") | |
.attrs({width, height}) | |
.append("g") | |
.attr("transform", `translate(${width/2},${height/2})`); | |
const coordinates = pie(data).map((d) => Object.create({ | |
alpha: (d.startAngle + d.endAngle)/2, | |
l: innerRadius + d.data | |
}) | |
) | |
svg.append('circle') | |
.attr("r", innerRadius) | |
.style("stroke", baseColour) | |
.style("stroke-width", "2.5px") | |
.style("fill", 'none') | |
.on('mouseover', function() { | |
styleChange(d3.select(this), "2.5px"); | |
styleChange(getRandomLines(), strokeSmall); | |
}) | |
drawVerticals(coordinates, baseColour, 'v-lines'); | |
function drawVerticals(coordinates, stroke, group){ | |
coordinates = coordinates.sort((a, b) => a.alpha - b.alpha); | |
svg.selectAll("line") | |
.data(coordinates) | |
.enter().append('line') | |
.style("stroke-width", strokeSmall) | |
.style("stroke", stroke) | |
.classed("v-lines", true) | |
.attrs({ | |
x1: (d, i) => i%2 ? d.l * Math.sin(d.alpha) : null, | |
x2: (d, i) => (i+1)%2 ? innerRadius * Math.sin(d.alpha) : null, | |
y1: (d, i) => (i+1)%2 ? -1 * d.l * Math.cos(d.alpha) : null, | |
y2: (d, i) => i%2 ? -1 * innerRadius * Math.cos(d.alpha): null | |
}) | |
.on('mouseover', function() { | |
styleChange(d3.select(this), strokeSmall) | |
}); | |
} | |
const getRandomLines = () => d3.selectAll(".v-lines") | |
.filter((d, i) => i % parseInt(Math.random()*100 + 50) === 0); | |
const styleChange = (toChange, strokeOriginal) => { | |
toChange | |
.styles({"stroke-width": strokeLarge, stroke: 'lime'}) | |
.transition() | |
.duration(1000) | |
.ease(d3.easeLinear) | |
.styles({"stroke-width": strokeOriginal, stroke: baseColour}); | |
} | |
// // Use some sort of timer to randomly select items to apply style changes | |
d3.interval(function() { | |
styleChange(getRandomLines(), strokeSmall); | |
styleChange(d3.select('circle'), "2.5px"); | |
}, 1000); |
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