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@enjalot
Last active November 8, 2019 08:05
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interpolating and easing
license: mit
<!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; }
</style>
</head>
<body>
<script>
// Feel free to change or delete any of the code you see in this editor!
var width = 960
var interpolateColor = d3.interpolateLab("steelblue", "brown")
var interpolateWidth = d3.interpolateNumber(0, 960)
var ease = d3.easeCubic
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", 500)
var rect = svg.append("rect")
.attr("x", 0)
.attr("y", 100)
.attr("height", 300)
.attr("width", 100)
.style("fill", "steelblue")
svg.on("mousemove", function() {
var mouse = d3.mouse(this)
console.log("mouse", mouse)
var t = mouse[0]/width
var color = interpolateColor(t)
rect.style("fill", color)
.attr("width", interpolateWidth(ease(t)))
})
</script>
</body>
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