|
<!DOCTYPE html> |
|
<meta charset="utf-8"> |
|
<style> |
|
|
|
body { |
|
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; |
|
width: 960px; |
|
height: 500px; |
|
position: relative; |
|
} |
|
|
|
svg { |
|
width: 100%; |
|
height: 100%; |
|
} |
|
|
|
path.slice{ |
|
stroke-width:2px; |
|
} |
|
|
|
polyline{ |
|
opacity: .3; |
|
stroke: black; |
|
stroke-width: 2px; |
|
fill: none; |
|
} |
|
|
|
</style> |
|
<body> |
|
<button class="randomize">randomize</button> |
|
|
|
<script src="http://d3js.org/d3.v3.min.js"></script> |
|
<script> |
|
|
|
var svg = d3.select("body") |
|
.append("svg") |
|
.append("g") |
|
|
|
svg.append("g") |
|
.attr("class", "slices"); |
|
svg.append("g") |
|
.attr("class", "labels"); |
|
svg.append("g") |
|
.attr("class", "lines"); |
|
|
|
var width = 960, |
|
height = 450, |
|
radius = Math.min(width, height) / 2; |
|
|
|
var pie = d3.layout.pie() |
|
.sort(null) |
|
.value(function(d) { |
|
return d.value; |
|
}); |
|
|
|
var arc = d3.svg.arc() |
|
.outerRadius(radius * 0.8) |
|
.innerRadius(radius * 0.4); |
|
|
|
var outerArc = d3.svg.arc() |
|
.innerRadius(radius * 0.9) |
|
.outerRadius(radius * 0.9); |
|
|
|
svg.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")"); |
|
|
|
var key = function(d){ return d.data.label; }; |
|
|
|
var color = d3.scale.ordinal() |
|
.domain(["Lorem ipsum", "dolor sit", "amet", "consectetur", "adipisicing", "elit", "sed", "do", "eiusmod", "tempor", "incididunt"]) |
|
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]); |
|
|
|
function randomData (){ |
|
var labels = color.domain(); |
|
return labels.map(function(label){ |
|
return { label: label, value: Math.random() } |
|
}); |
|
} |
|
|
|
change(randomData()); |
|
|
|
d3.select(".randomize") |
|
.on("click", function(){ |
|
change(randomData()); |
|
}); |
|
|
|
|
|
function change(data) { |
|
|
|
/* ------- PIE SLICES -------*/ |
|
var slice = svg.select(".slices").selectAll("path.slice") |
|
.data(pie(data), key); |
|
|
|
slice.enter() |
|
.insert("path") |
|
.style("fill", function(d) { return color(d.data.label); }) |
|
.attr("class", "slice"); |
|
|
|
slice |
|
.transition().duration(1000) |
|
.attrTween("d", function(d) { |
|
this._current = this._current || d; |
|
var interpolate = d3.interpolate(this._current, d); |
|
this._current = interpolate(0); |
|
return function(t) { |
|
return arc(interpolate(t)); |
|
}; |
|
}) |
|
|
|
slice.exit() |
|
.remove(); |
|
|
|
/* ------- TEXT LABELS -------*/ |
|
|
|
var text = svg.select(".labels").selectAll("text") |
|
.data(pie(data), key); |
|
|
|
text.enter() |
|
.append("text") |
|
.attr("dy", ".35em") |
|
.text(function(d) { |
|
return d.data.label; |
|
}); |
|
|
|
function midAngle(d){ |
|
return d.startAngle + (d.endAngle - d.startAngle)/2; |
|
} |
|
|
|
text.transition().duration(1000) |
|
.attrTween("transform", function(d) { |
|
this._current = this._current || d; |
|
var interpolate = d3.interpolate(this._current, d); |
|
this._current = interpolate(0); |
|
return function(t) { |
|
var d2 = interpolate(t); |
|
var pos = outerArc.centroid(d2); |
|
pos[0] = radius * (midAngle(d2) < Math.PI ? 1 : -1); |
|
return "translate("+ pos +")"; |
|
}; |
|
}) |
|
.styleTween("text-anchor", function(d){ |
|
this._current = this._current || d; |
|
var interpolate = d3.interpolate(this._current, d); |
|
this._current = interpolate(0); |
|
return function(t) { |
|
var d2 = interpolate(t); |
|
return midAngle(d2) < Math.PI ? "start":"end"; |
|
}; |
|
}); |
|
|
|
text.exit() |
|
.remove(); |
|
|
|
/* ------- SLICE TO TEXT POLYLINES -------*/ |
|
|
|
var polyline = svg.select(".lines").selectAll("polyline") |
|
.data(pie(data), key); |
|
|
|
polyline.enter() |
|
.append("polyline"); |
|
|
|
polyline.transition().duration(1000) |
|
.attrTween("points", function(d){ |
|
this._current = this._current || d; |
|
var interpolate = d3.interpolate(this._current, d); |
|
this._current = interpolate(0); |
|
return function(t) { |
|
var d2 = interpolate(t); |
|
var pos = outerArc.centroid(d2); |
|
pos[0] = radius * 0.95 * (midAngle(d2) < Math.PI ? 1 : -1); |
|
return [arc.centroid(d2), outerArc.centroid(d2), pos]; |
|
}; |
|
}); |
|
|
|
polyline.exit() |
|
.remove(); |
|
}; |
|
|
|
</script> |
|
</body> |