Last active
August 29, 2015 14:14
-
-
Save And-How/f0cc66782280d83cfcd4 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
body { | |
font: 10px sans-serif; | |
} | |
.chord path { | |
fill-opacity: .67; | |
stroke: #000; | |
stroke-width: .5px; | |
} | |
</style> | |
<body> | |
<script src="http://d3js.org/d3.v2.min.js?2.8.1"></script> | |
<script> | |
var width = 720, | |
height = 720, | |
outerRadius = Math.min(width, height) / 2 - 10, | |
innerRadius = outerRadius - 24; | |
var formatPercent = d3.format(".1%"); | |
var arc = d3.svg.arc() | |
.innerRadius(innerRadius) | |
.outerRadius(outerRadius); | |
var layout = d3.layout.chord() | |
.padding(.04) | |
.sortSubgroups(d3.descending) | |
.sortChords(d3.ascending); | |
var path = d3.svg.chord() | |
.radius(innerRadius); | |
var svg = d3.select("body").append("svg") | |
.attr("width", width) | |
.attr("height", height) | |
.append("g") | |
.attr("id", "circle") | |
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); | |
svg.append("circle") | |
.attr("r", outerRadius); | |
d3.csv("cities.csv", function(cities) { | |
d3.json("matrix.json", function(matrix) { | |
// Compute the chord layout. | |
layout.matrix(matrix); | |
// Add a group per neighborhood. | |
var group = svg.selectAll(".group") | |
.data(layout.groups) | |
.enter().append("g") | |
.attr("class", "group") | |
.on("mouseover", mouseover); | |
// Add a mouseover title. | |
group.append("title").text(function(d, i) { | |
return cities[i].name + ": " + formatPercent(d.value) + " of origins"; | |
}); | |
// Add the group arc. | |
var groupPath = group.append("path") | |
.attr("id", function(d, i) { return "group" + i; }) | |
.attr("d", arc) | |
.style("fill", function(d, i) { return cities[i].color; }); | |
// Add a text label. | |
var groupText = group.append("text") | |
.attr("x", 6) | |
.attr("dy", 15); | |
groupText.append("textPath") | |
.attr("xlink:href", function(d, i) { return "#group" + i; }) | |
.text(function(d, i) { return cities[i].name; }); | |
// Remove the labels that don't fit. :( | |
groupText.filter(function(d, i) { return groupPath[0][i].getTotalLength() / 2 - 16 < this.getComputedTextLength(); }) | |
.remove(); | |
// Add the chords. | |
var chord = svg.selectAll(".chord") | |
.data(layout.chords) | |
.enter().append("path") | |
.attr("class", "chord") | |
.style("fill", function(d) { return cities[d.source.index].color; }) | |
.attr("d", path); | |
// Add an elaborate mouseover title for each chord. | |
chord.append("title").text(function(d) { | |
return cities[d.source.index].name | |
+ " → " + cities[d.target.index].name | |
+ ": " + formatPercent(d.source.value) | |
+ "\n" + cities[d.target.index].name | |
+ " → " + cities[d.source.index].name | |
+ ": " + formatPercent(d.target.value); | |
}); | |
function mouseover(d, i) { | |
chord.classed("fade", function(p) { | |
return p.source.index != i | |
&& p.target.index != i; | |
}); | |
} | |
}); | |
}); | |
</script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment