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Last active October 11, 2017 08:01
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d3js Exercice 2 - scales
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.block
license: mit
Raw
README.md
Raw
index.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v4.min.js"></script>
</head>
<body>
<pre>
<script>
document.writeln('LE BAC A SABLE DES SCALES\n');
const sc = d3.scaleLinear()
.domain([0, 20])
.range([0, 1]);
document.writeln('sc(0) -> ' + sc(0));
document.writeln('sc(10) -> ' + sc(10));
document.writeln('sc(20) -> ' +sc(20));
document.writeln();
document.writeln('Et au delà des intervalles convenus\n');
document.writeln();
let x = 5;
document.writeln('sc(' + x + ') -> ' + sc(x));
document.writeln();
const scc = d3.scaleLinear()
.domain([0, 20])
.range([0, 1])
.clamp(true); // Clamp !!!
document.writeln(scc(-10));
document.writeln(scc(200));
let colors = ["red", "green", "blue"];
const colorRange = d3.scaleLinear()
.domain([-100, 0, +100])
.range(colors)
.clamp(true)
document.writeln(colorRange(100));
// Essayer: invert, power, log
//Lire la documentation https://github.com/d3/d3-scale
// Essayer avec une range de couleur ["red", "white", "green"]
</script>
</pre>
</body>
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