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nbremer/.block

Last active April 17, 2018 14:52
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Simple animated bar chart
Raw
.block
license: mit
Raw
index.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<script src="https://d3js.org/d3.v5.min.js"></script>
<style>
body { text-align: center; }
svg { margin-top: 50px; }
</style>
</head>
<body>
<script>
var dataset = [ 5, 10, 4, 7, 8, 12, 15, 3, 16, 18, 7, 19, 14, 7 ];
var totalHeight = 100;
var yScale = d3.scaleLinear()
.domain([0, d3.max(dataset)])
.range([0, totalHeight]);
var colorScale = d3.scaleLinear()
.domain([0, d3.max(dataset)/2, d3.max(dataset)])
.range(["#e89f84", "#BF4E24", "#6c2c14"]);
var svg = d3.select("body").append("svg")
.attr("width", 300)
.attr("height", 400);
var bars = svg.selectAll(".bars")
.data(dataset)
.enter().append("rect")
.attr("class", "bars")
.attr("width", 15)
.attr("height", 0)
.attr("x", function(d,i) { return i*20; })
.attr("y", totalHeight)
.style("fill", function(d) { return colorScale(d); });
bars.on("mouseover", function(d) {
d3.select(this)
.style("fill", "#D3D3D3");
})
.on("mouseout", function(d) {
d3.select(this)
.transition().duration(600)
.style("fill", function(d) { return colorScale(d); });
});
bars.transition().duration(500)
.delay(function(d,i) { return i*200; })
.attr("y", function(d) { return totalHeight - yScale(d); })
.attr("height", function(d) { return yScale(d); });
</script>
</body>
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