Skip to content

Instantly share code, notes, and snippets.

@lmatteis
Last active April 7, 2016 09:38
Show Gist options
  • Star 0 You must be signed in to star a gist
  • Fork 0 You must be signed in to fork a gist
  • Save lmatteis/d0f7533895da2e59cd6f62f3589fd8eb to your computer and use it in GitHub Desktop.
Save lmatteis/d0f7533895da2e59cd6f62f3589fd8eb to your computer and use it in GitHub Desktop.
Tornado chart
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.bar--positive {
fill: #9BCCF5;
}
.bar--negative {
fill: pink;
}
text {
font: 10px sans-serif;
}
.axis path,
.axis line {
fill: none;
stroke: #000;
shape-rendering: crispEdges;
}
</style>
<body>
<p id="example"></p>
<script src="https://d3js.org/d3.v3.min.js"></script>
<script>
function tornadoChart() {
var margin = {top: 20, right: 30, bottom: 40, left: 100},
width = 450 - margin.left - margin.right,
height = 200 - margin.top - margin.bottom;
var x = d3.scale.linear()
.range([0, width]);
var y = d3.scale.ordinal()
.rangeRoundBands([0, height], 0.1);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom")
.ticks(7)
var yAxis = d3.svg.axis()
.scale(y)
.orient("left")
.tickSize(0)
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
function chart(selection) {
selection.each(function(data) {
x.domain(d3.extent(data, function(d) { return d.interactions; })).nice();
y.domain(data.map(function(d) { return d.age; }));
var minInteractions = Math.min.apply(Math, data.map(function(o){return o.interactions;}))
yAxis.tickPadding(Math.abs(x(minInteractions) - x(0)) + 10);
var bar = svg.selectAll(".bar")
.data(data)
bar.enter().append("rect")
.attr("class", function(d) { return "bar bar--" + (d.interactions < 0 ? "negative" : "positive"); })
.attr("x", function(d) { return x(Math.min(0, d.interactions)); })
.attr("y", function(d) { return y(d.age); })
.attr("width", function(d) { return Math.abs(x(d.interactions) - x(0)); })
.attr("height", y.rangeBand())
bar.enter().append('text')
.attr("text-anchor", "middle")
.attr("x", function(d,i) {
return x(Math.min(0, d.interactions)) + (Math.abs(x(d.interactions) - x(0)) / 2);
})
.attr("y", function(d,i) {
return y(d.age) + (y.rangeBand() / 2);
})
.attr("dy", ".35em")
.text(function (d) { return d.interactions; })
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.attr("transform", "translate(" + x(0) + ",0)")
.call(yAxis);
});
}
return chart;
}
var data = {"BMW":[{"age":"18-24","gender":"male","interactions":21600},{"age":"18-24","gender":"female","interactions":-5500},{"age":"25-34","gender":"male","interactions":19500},{"age":"25-34","gender":"female","interactions":-5000},{"age":"35-44","gender":"male","interactions":10700},{"age":"35-44","gender":"female","interactions":-3500},{"age":"45-54","gender":"male","interactions":5700},{"age":"45-54","gender":"female","interactions":-2400},{"age":"55-64","gender":"male","interactions":2500},{"age":"55-64","gender":"female","interactions":-1100},{"age":"65+","gender":"male","interactions":1600},{"age":"65+","gender":"female","interactions":-600}],"Ford Mustang":[{"age":"18-24","gender":"male","interactions":7600},{"age":"18-24","gender":"female","interactions":-800},{"age":"25-34","gender":"male","interactions":7100},{"age":"25-34","gender":"female","interactions":-900},{"age":"35-44","gender":"male","interactions":5100},{"age":"35-44","gender":"female","interactions":-800},{"age":"45-54","gender":"male","interactions":3500},{"age":"45-54","gender":"female","interactions":-600},{"age":"55-64","gender":"male","interactions":1400},{"age":"55-64","gender":"female","interactions":-300},{"age":"65+","gender":"male","interactions":600},{"age":"65+","gender":"female","interactions":-200}],"Ford Motor Company":[{"age":"25-34","gender":"male","interactions":4300},{"age":"25-34","gender":"female","interactions":-800},{"age":"18-24","gender":"male","interactions":4200},{"age":"18-24","gender":"female","interactions":-700},{"age":"35-44","gender":"male","interactions":3000},{"age":"35-44","gender":"female","interactions":-600},{"age":"45-54","gender":"male","interactions":1800},{"age":"45-54","gender":"female","interactions":-500},{"age":"55-64","gender":"male","interactions":800},{"age":"55-64","gender":"female","interactions":-300},{"age":"65+","gender":"male","interactions":500},{"age":"65+","gender":"female","interactions":-200}]};
for (var i in data) {
var chart = tornadoChart()
d3.select("#example")
.datum(data[i])
.call(chart);
}
</script>
</body>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment