You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
3.1 KiB
108 lines
3.1 KiB
/* ------------------------------------------------------------------------------ |
|
* |
|
* # D3.js - sunbirst diagram with zoom |
|
* |
|
* Demo sunbirst diagram setup with interactive zoom |
|
* |
|
* Version: 1.0 |
|
* Latest update: August 1, 2015 |
|
* |
|
* ---------------------------------------------------------------------------- */ |
|
|
|
$(function () { |
|
|
|
// Initialize chart |
|
sunburstZoomable('#d3-sunburst-zoom', 400, 400); |
|
|
|
// Chart setup |
|
function sunburstZoomable(element, width, height) { |
|
|
|
|
|
// Basic setup |
|
// ------------------------------ |
|
|
|
// Define main variables |
|
var radius = Math.min(width, height) / 2; |
|
|
|
|
|
|
|
// Construct scales |
|
// ------------------------------ |
|
|
|
// Horizontal |
|
var x = d3.scale.linear() |
|
.range([0, 2 * Math.PI]); |
|
|
|
// Vertical |
|
var y = d3.scale.sqrt() |
|
.range([0, radius]); |
|
|
|
// Colors |
|
var color = d3.scale.category20c(); |
|
|
|
|
|
|
|
// Create chart |
|
// ------------------------------ |
|
|
|
var svg = d3.select(element).append("svg") |
|
.attr("width", width) |
|
.attr("height", height) |
|
.append("g") |
|
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); |
|
|
|
|
|
|
|
// Construct chart layout |
|
// ------------------------------ |
|
|
|
// Partition layout |
|
var partition = d3.layout.partition() |
|
.value(function(d) { return d.size; }); |
|
|
|
// Arc |
|
var arc = d3.svg.arc() |
|
.startAngle(function(d) { return Math.max(0, Math.min(2 * Math.PI, x(d.x))); }) |
|
.endAngle(function(d) { return Math.max(0, Math.min(2 * Math.PI, x(d.x + d.dx))); }) |
|
.innerRadius(function(d) { return Math.max(0, y(d.y)); }) |
|
.outerRadius(function(d) { return Math.max(0, y(d.y + d.dy)); }); |
|
|
|
|
|
|
|
// Load data |
|
// ------------------------------ |
|
|
|
d3.json("assets/demo_data/d3/sunburst/sunburst_basic.json", function(error, root) { |
|
|
|
// Append sunbirst |
|
var path = svg.selectAll(".d3-sunbirst") |
|
.data(partition.nodes(root)) |
|
.enter() |
|
.append("path") |
|
.attr("class", "d3-sunbirst") |
|
.attr("d", arc) |
|
.style("fill", function(d) { return color((d.children ? d : d.parent).name); }) |
|
.on("click", click); |
|
|
|
// Run transition on click |
|
function click(d) { |
|
path.transition() |
|
.duration(750) |
|
.attrTween("d", arcTween(d)); |
|
} |
|
}); |
|
|
|
|
|
// Interpolate the scales |
|
function arcTween(d) { |
|
var xd = d3.interpolate(x.domain(), [d.x, d.x + d.dx]), |
|
yd = d3.interpolate(y.domain(), [d.y, 1]), |
|
yr = d3.interpolate(y.range(), [d.y ? 20 : 0, radius]); |
|
return function(d, i) { |
|
return i |
|
? function(t) { return arc(d); } |
|
: function(t) { x.domain(xd(t)); y.domain(yd(t)).range(yr(t)); return arc(d); }; |
|
}; |
|
} |
|
} |
|
});
|
|
|