I'm trying to implement this D3 code into an empty react project but the graphic is not showing on the browser. I've tried this below code. I also installed D3 version 3 using npm i d3#3
When I just try implement using vanilla html and vanilla JS, it still doesn't work on the local browser. I'm not sure why it's not working. The author's deployed project seem to work well.
import React from "react";
import * as d3 from "d3";
class Aroma extends React.Component {
componentDidMount(){
var margin = {top: 650, right: 650, bottom: 650, left: 650},
radius = Math.min(margin.top, margin.right, margin.bottom, margin.left) - 168;
function filter_min_arc_size_text(d, i) {return (d.dx*d.depth*radius/1)>14};
var hue = d3.scale.category10();
var luminance = d3.scale.sqrt()
.domain([0, 1e6])
.clamp(true)
.range([80, 20]);
var svg = d3.select("body").append("svg")
.attr("width", margin.left + margin.right)
.attr("height", margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
var partition = d3.layout.partition()
.sort(function(a, b) { return d3.ascending(a.name, b.name); })
.size([2 * Math.PI, radius]);
var arc = d3.svg.arc()
.startAngle(function(d) { return d.x; })
.endAngle(function(d) { return d.x + d.dx - .01 / (d.depth + .5); })
.innerRadius(function(d) { return (radius + 6) / 3 * d.depth; })
.outerRadius(function(d) { return (radius + 6) / 3 * (d.depth + 1.) - 1; });
svg.append("image")
.attr("xlink:href", "images/grapes.png")
.attr("x", -650)
.attr("y", -650);
//Tooltip description
var tooltip = d3.select("body")
.append("div")
.attr("id", "tooltip")
.style("position", "absolute")
.style("z-index", "10")
.style("opacity", 0);
function format_number(x) {
return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}
function format_description(d) {
var description = d.description;
return '<b>' + d.name + '</b></br>'+ d.description + '<br> (' + format_number(d.value) + ')';
}
function computeTextRotation(d) {
var rotation = (d.x + d.dx / 2) * 180 / Math.PI - 90;
return {
global: rotation,
correction: rotation > 90 ? 180 : 0
};
}
function isRotated(d) {
var rotation = (d.x + d.dx / 2) * 180 / Math.PI - 90;
return rotation > 90 ? true : false
}
function mouseOverArc(d) {
d3.select(this).attr("stroke","black")
tooltip.html(format_description(d));
return tooltip.transition()
.duration(50)
.style("opacity", 0.9);
}
function mouseOutArc(){
d3.select(this).attr("stroke","")
return tooltip.style("opacity", 0);
}
function mouseMoveArc (d) {
return tooltip
.style("top", (d3.event.pageY-10)+"px")
.style("left", (d3.event.pageX+10)+"px");
}
var root_ = null;
d3.json("data/davis-aroma-wheel.json", function(error, root) {
if (error) return console.warn(error);
// Compute the initial layout on the entire tree to sum sizes.
// Also compute the full name and fill color for each node,
// and stash the children so they can be restored as we descend.
partition
.value(function(d) { return d.size; })
.nodes(root)
.forEach(function(d) {
d._children = d.children;
d.sum = d.value;
d.key = key(d);
d.fill = fill(d);
});
// Now redefine the value function to use the previously-computed sum.
partition
.children(function(d, depth) { return depth < 3 ? d._children : null; })
.value(function(d) { return d.sum; });
var center = svg.append("circle")
.attr("r", radius / 3)
.on("click", zoomOut);
center.append("title")
.text("Zoom Out");
var partitioned_data = partition.nodes(root).slice(1)
var path = svg.selectAll("path")
.data(partitioned_data)
.enter().append("path")
.attr("d", arc)
.style("fill", function(d) { return d.fill; })
.each(function(d) { this._current = updateArc(d); })
.on("click", zoomIn)
.on("mouseover", mouseOverArc)
.on("mousemove", mouseMoveArc)
.on("mouseout", mouseOutArc);
var texts = svg.selectAll("text")
.data(partitioned_data)
.enter().append("text")
.filter(filter_min_arc_size_text)
.attr("transform", function(d)
{
var r = computeTextRotation(d);
return "rotate(" + r.global + ")"
+ "translate(" + radius / 3. * d.depth + ")"
+ "rotate(" + -r.correction + ")";
})
.style("font-weight", "bold")
.style("text-anchor", "middle")
.attr("dx", function(d) {return isRotated(d) ? "-85" : "85"}) //margin
.attr("dy", ".35em") // vertical-align
.on("click", zoomIn)
.text(function(d,i) {return d.name})
function zoomIn(p) {
if (p.depth > 1) p = p.parent;
if (!p.children) return;
zoom(p, p);
}
function zoomOut(p) {
if (!p.parent) return;
zoom(p.parent, p);
}
// Zoom to the specified new root.
function zoom(root, p) {
if (document.documentElement.__transition__) return;
// Rescale outside angles to match the new layout.
var enterArc,
exitArc,
outsideAngle = d3.scale.linear().domain([0, 2 * Math.PI]);
function insideArc(d) {
return p.key > d.key
? {depth: d.depth - 1, x: 0, dx: 0} : p.key < d.key
? {depth: d.depth - 1, x: 2 * Math.PI, dx: 0}
: {depth: 0, x: 0, dx: 2 * Math.PI};
}
function outsideArc(d) {
return {depth: d.depth + 1, x: outsideAngle(d.x), dx: outsideAngle(d.x + d.dx) - outsideAngle(d.x)};
}
center.datum(root);
// When zooming in, arcs enter from the outside and exit to the inside.
// Entering outside arcs start from the old layout.
//commented //if (root === p) enterArc = outsideArc, exitArc = insideArc, outsideAngle.range([p.x, p.x + p.dx]);
var new_data=partition.nodes(root).slice(1)
path = path.data(new_data, function(d) { return d.key; });
// When zooming out, arcs enter from the inside and exit to the outside.
// Exiting outside arcs transition to the new layout.
//commented// if (root !== p) enterArc = insideArc, exitArc = outsideArc, outsideAngle.range([p.x, p.x + p.dx]);
d3.transition().duration(d3.event.altKey ? 7500 : 750).each(function() {
path.exit().transition()
.style("fill-opacity", function(d) { return d.depth === 1 + (root === p) ? 1 : 0; })
.attrTween("d", function(d) { return arcTween.call(this, exitArc(d)); })
.remove();
path.enter().append("path")
.style("fill-opacity", function(d) { return d.depth === 2 - (root === p) ? 1 : 0; })
.style("fill", function(d) { return d.fill; })
.on("click", zoomIn)
.on("mouseover", mouseOverArc)
.on("mousemove", mouseMoveArc)
.on("mouseout", mouseOutArc)
.each(function(d) { this._current = enterArc(d); });
path.transition()
.style("fill-opacity", 1)
.attrTween("d", function(d) { return arcTween.call(this, updateArc(d)); });
});
texts = texts.data(new_data, function(d) { return d.key; })
texts.exit()
.remove()
texts.enter()
.append("text")
texts.style("opacity", 0)
.attr("transform", function(d) {
var r = computeTextRotation(d);
return "rotate(" + r.global + ")"
+ "translate(" + radius / 3 * d.depth + ",0)"
+ "rotate(" + -r.correction + ")";
})
.style("font-weight", "bold")
.style("text-anchor", "middle")
.attr("dx", function(d) {return isRotated(d) ? "-85" : "85"}) //margin
.attr("dy", ".35em") // vertical-align
.filter(filter_min_arc_size_text)
.on("click", zoomIn)
.text(function(d,i) {return d.name})
.transition().delay(750).style("opacity", 1)
}
});
function key(d) {
var k = [], p = d;
//while (p.depth) k.push(p.name), p = p.parent;
return k.reverse().join(".");
}
function fill(d) {
var p = d;
while (p.depth > 1) p = p.parent;
var c = d3.lab(hue(p.name));
c.l = luminance(d.sum);
return c;
}
function arcTween(b) {
var i = d3.interpolate(this._current, b);
this._current = i(0);
return function(t) {
return arc(i(t));
};
}
function updateArc(d) {
return {depth: d.depth, x: d.x, dx: d.dx};
}
d3.select(this.frameElement).style("height", margin.top + margin.bottom + "px");
}
render(){
return <p id="aroma" />;
}
}
export default Aroma;
I emailed the original D3 repo author and he kindly got back to me, mentioning that there's an error with d3 version 3, that it needs longer investigation. He sent me all the resources that he used to build his project 3 years ago.
So I simply decided to follow this action.
Zoomable sunburst chart shows only two layers of the hierarchy at a time in React JS
Related
I have more than 100 data's as a children in a json file,how to show only limited number of data's in chidren node.I have json data with array of children with more than 100data's,i want to show only 10 data's in node and remaining data should be in hide when i expand it should load another data,this should done for every node.Can any one help me out.Here is my code.
And here is my directive:
app.directive('mindMap', function () {
return {
link: function(scope, element) {
var eleW = element[0].clientWidth,
eleH = element[0].clientHeight;
var m = [20,40,20,80],
w = eleW - m[1] - m[3],
h = eleH - m[0] - m[2],
i = 0,
root;
var tree = d3.layout.tree().size([h, w]);
var diagonal = d3.svg.diagonal().projection(function(d) { return [d.y, d.x]; });
var vis = d3.select(element[0]).append("svg:svg")
.attr("width", w + m[1] + m[3])
.attr("height", h + m[0] + m[2])
.append("svg:g")
.attr("transform", "translate(" + m[3] + "," + m[0] + ")");
// Toggle children.
function toggle(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
}
function toggleAll(d) {
if (d.children) {
d.children.forEach(toggleAll);
toggle(d);
}
}
scope.$watch('json' , function(){
if(!(scope.json != null)){
scope.json = {
"name" : "root"
}
}
root = scope.json;
root.x0 = h/2;
root.y0 = 0;
update(root);
scope.root = root;
});
function update(source) {
console.log(source);
var duration = 500;
if(!(source != null)){
return;
}
// Compute the new tree layout.
var nodes = tree.nodes(root).reverse();
// Normalize for fixed-depth.
var deepest = 0,
generationGutter = w;
nodes.forEach(function(d){
if(deepest < d.depth){
deepest = d.depth;
}
});
generationGutter = Math.floor(w/(deepest+1));
nodes.forEach(function(d) { d.y = d.depth * generationGutter; });
// Update the nodes…
var node = vis.selectAll("g.node")
.data(nodes, function(d) { return d.id || (d.id = ++i); });
console.log(node);
// Enter any new nodes at the parent's previous position.
var nodeEnter = node.enter().append("svg:g")
.attr("class", "node")
.attr("transform", function(d) { return "translate(" + source.y0 + "," + source.x0 + ")"; });
//inject content to node
InjectNodeContent(nodeEnter);
// Transition nodes to their new position.
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function(d) { return "translate(" + d.y + "," + d.x + ")"; });
nodeUpdate.select("circle")
.attr("r", 4.5)
.style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; });
nodeUpdate.select("text")
.text(function(d) { return d.name; })
.style("fill-opacity", 1);
// Transition exiting nodes to the parent's new position.
var nodeExit = node.exit().transition()
.duration(duration)
.attr("transform", function(d) { return "translate(" + source.y + "," + source.x + ")"; })
.remove();
nodeExit.select("circle")
.attr("r", 1e-6);
nodeExit.select("text")
.style("fill-opacity", 1e-6);
// Update the links…
var link = vis.selectAll("path.link")
.data(tree.links(nodes), function(d) { return d.target.id; });
// Enter any new links at the parent's previous position.
link.enter().insert("svg:path", "g")
.attr("class", "link")
.attr("d", function(d) {
var o = {x: source.x0, y: source.y0};
return diagonal({source: o, target: o});
})
.transition()
.duration(duration)
.attr("d", diagonal);
// Transition links to their new position.
link.transition()
.duration(duration)
.attr("d", diagonal);
// Transition exiting nodes to the parent's new position.
link.exit().transition()
.duration(duration)
.attr("d", function(d) {
var o = {x: source.x, y: source.y};
return diagonal({source: o, target: o});
})
.remove();
// Stash the old positions for transition.
nodes.forEach(function(d) {
d.x0 = d.x;
d.y0 = d.y;
});
}
function InjectNodeContent (nodeEnter) {
nodeEnter.append("svg:circle")
.attr("r", 1e-6)
.style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; })
.classed("toggleCircle" , true)
.on("click", function(d) {
toggle(d);
update(d);
});
nodeEnter.append("svg:text")
.attr("x", function(d) { return d.children || d._children ? -10 : 10; })
.attr("dy", ".35em")
.attr("text-anchor", function(d) { return d.children || d._children ? "end" : "start"; })
.text(function(d) { return d.name; })
.style("fill-opacity", 1e-6);
}
}
}
});
My sample JSON data:
{
"name": "Parent",
"children": [
{
"name": "child1",
"children": [
{"name": "subchild1"},
{"name": "subchild2"}
]
},
{
"name": "child2",
"children": [
{"name": "subchild3"},
{"name": "subchild4"}
]
},
{"name": "subchild5"},
{"name": "subchild6"},
{"name": "subchild7"},
{"name": "subchild8"},
{"name": "subchild9"}
]
}
I am trying to collapse a set of foreign objects so I do that like this.
$scope.render = function(center) {
$scope.direction = $scope.direction ? $scope.direction : "RL";
var nodes = $scope.container.selectAll(".subNode")
.data($scope.node.nodes);
nodes.exit().remove();
$scope.nodeElements = nodes.enter().append("g")
.attr({
class: "subNode",
})
$scope.nodeElements.append("foreignObject")
.attr("width", 300)
.attr("height", 100)
.append("xhtml:body")
.style("font", "14px 'Helvetica Neue'")
.html(function(d) {
return d.label
});
$scope.container.select("rect.mainNode")
.remove();
var mainNode = $scope.container.append("g")
.attr({
x: 0,
y: 0,
class: "mainNode",
})
.on({
click: function(d) {
$scope.open = !$scope.open;
$scope.container.selectAll(".subNode").transition()
.attr({
transform: function(d, i) {
var r = 0;
if ($scope.open) {
r = i * 100 + i * 10 + 110;
}
if ($scope.direction == "RL") {
return "translate(" + r + ", 0)"
} else {
return "translate(0, " + r + ")"
}
}
})
}
})
mainNode.append("foreignObject")
.attr("width", 10)
.attr("height", 10)
.append("xhtml:body")
.style("font", "14px 'Helvetica Neue'")
.html($scope.node.label);
mainNode.selectAll("foreignObject").transition()
.attr({
x: function(d, i) {
return 0
},
y: 0,
height: 100,
width: 300
});
}
When i inspect the DOM everything looks correct but I do not see the text. What am I missing?
Looks like the transform does not move the viewable window. If I add an x/y to the foreign object instead it works.
I am new to d3.js, can anyone guide me about drawing zoomable sunburst.
Thanks in advance !
You might want to check out the D3 gallery of examples, specifically the zoomable sunburst:
http://bl.ocks.org/mbostock/4348373
Code from their example:
<!DOCTYPE html>
<meta charset="utf-8">
<style>
path {
stroke: #fff;
fill-rule: evenodd;
}
</style>
<body>
<script src="//d3js.org/d3.v3.min.js"></script>
<script>
var width = 960,
height = 700,
radius = Math.min(width, height) / 2;
var x = d3.scale.linear()
.range([0, 2 * Math.PI]);
var y = d3.scale.sqrt()
.range([0, radius]);
var color = d3.scale.category20c();
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + width / 2 + "," + (height / 2 + 10) + ")");
var partition = d3.layout.partition()
.value(function(d) { return d.size; });
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)); });
d3.json("/mbostock/raw/4063550/flare.json", function(error, root) {
if (error) throw error;
var path = svg.selectAll("path")
.data(partition.nodes(root))
.enter().append("path")
.attr("d", arc)
.style("fill", function(d) { return color((d.children ? d : d.parent).name); })
.on("click", click);
function click(d) {
path.transition()
.duration(750)
.attrTween("d", arcTween(d));
}
});
d3.select(self.frameElement).style("height", height + "px");
// 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); };
};
}
</script>
I'm new to D3. Trying to show "outside" labels with lines, in D3, similar to Bostock's pie chart here http://bl.ocks.org/dbuezas/9306799 I can't get the labels or lines to show up like Bostock's pie. The pie is working well though! Any help with my code, mainly the directive, would be appreciated!
HTML:
<div ng-controller="myControl">
<d3-pie-dir data="d3Data"></d3-pie-dir>
</div>
CSS:
path.slice{
stroke-width:2px;
}
polyline{
opacity: .3;
stroke: black;
stroke-width: 2px;
fill: none;
}
Controller:
inAng.controller('myControl', function ( $scope, $http ) {
var stack = [];
$http.get("/getAPIData").
success(function (data, status, headers, config) {
// formatting for easier D3 consumption
for(var i in data)
stack.push(data [i]);
$scope.d3Data = stack;
// looks something like $scope.d3Data = [{ name: 'Bill', score: 25}, { name: 'Pete', score: 50}]
}).
error(function (data, status, headers, config) {
$scope.stack = 'Error!';
});
});
And the problem is in the directive:
inAng.directive('d3PieDir', function () {
return {
restrict: 'E',
scope: {
data: '='
},
link: function (scope, element, attrs) {
scope.$watch('data', function(values) {
if(values) {
console.log('values from directive: ', values);
var width = 960,
height = 500,
radius = Math.min(width, height) / 2;
var color = d3.scale.ordinal()
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"]);
var arc = d3.svg.arc()
.outerRadius(radius - 10)
.innerRadius(0);
var pie = d3.layout.pie()
.sort(null)
.value(function(d) {
return d.score;
});
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
values.forEach(function(d) {
d.score = +d.score;
});
var g = svg.selectAll(".arc")
.data(pie(values))
.enter().append("g")
.attr("class", "arc");
g.append("path")
.attr("d", arc)
.style("fill", function(d) { return color(d.data.name); });
// **** Below is where it stops working! ****
var key = function(d){ return d.data.name; };
/* ------- PIE SLICES -------*/
var slice = svg.select(".slices").selectAll("path.slice")
.data(pie(values), key);
slice.enter()
.insert("path")
.style("fill", function(d) { return color(d.data.name); })
.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(values), key);
text.enter()
.append("text")
.attr("dy", ".35em")
.text(function(d) {
return d.data.name;
});
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(values), 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();
}
})}
}});
You have two problems the first one is that you forgot to append these elements to your svg
svg.append("g")
.attr("class", "slices");
svg.append("g")
.attr("class", "labels");
svg.append("g")
.attr("class", "lines");
these are the g elements that d3 draws lines and labels on , so you need to put them after
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
,, the second issue is that you forgot to define outer arc ,,
var outerArc = d3.svg.arc()
.innerRadius(radius * 0.9)
.outerRadius(radius * 0.9);
which you use in your calculation for creating lines
I'm using mbostock’s Bilevel Partition and I need to include each node's text on each path. I'm trying to use this Coffee Wheel example but I'm having no luck.
This is all being written with Backbone.js which is giving me some trouble with nesting "this", so that may cause a problem.
Here is my render function. I try adding in text at the bottom.
render: function(root, svgVar) {
var that = this;
$('.breadcrumb').append('<li>'+root.name+'</li>');
var svg = d3.select(".associations-container").append("svg")
.attr("width", svgVar.width)
.attr("height", svgVar.height)
.append("g")
.attr("transform", "translate(" + (svgVar.width/2) + "," + ((svgVar.height/2)-svgVar.padding) + ")");
this.partition = d3.layout.partition()
.sort(function(a, b) { return d3.ascending(a.name, b.name); })
.size([2 * Math.PI, svgVar.radius]);
this.arc = d3.svg.arc()
.startAngle(function(d) { return d.x; })
.endAngle(function(d) { return d.x + d.dx - .01 / (d.depth + .5); })
.innerRadius(function(d) { return svgVar.radius / 3 * d.depth; })
.outerRadius(function(d) { return svgVar.radius / 3 * (d.depth + 1) - 1; });
// Compute the initial layout on the entire tree to sum sizes.
// Also compute the full name and fill color for each node,
// and stash the children so they can be restored as we descend.
this.partition
.value(function(d) { return 1; })
.nodes(root)
.forEach(function(d) {
d._children = d.children;
d.sum = d.value;
d.key = that.key(d);
d.fill = that.fill(d);
});
// Now redefine the value function to use the previously-computed sum.
this.partition
.children(function(d, depth) { return depth < 2 ? d._children : null; })
.value(function(d) { return d.sum; });
this.centerCircle = svg.append("circle")
.attr("r", svgVar.radius / 3)
.attr("fill", "grey")
.on("click", this.zoomOut);
var centerControls = svg.append("g");
centerControls.append("svg:foreignObject")
.attr("width", 40)
.attr("height", 40)
.attr("y", "-20px")
.attr("x", "-48px")
.append("xhtml:span")
.attr("class", "control glyphicon glyphicon-filter");
centerControls.append("svg:foreignObject")
.attr("width", 40)
.attr("height", 50)
.attr("y", "-20px")
.attr("x", "8px")
.append("xhtml:span")
.attr("class", "control glyphicon glyphicon-th-list toggle-list");
this.path = svg.selectAll("path")
.data(this.partition.nodes(root).slice(1))
.enter().append("path")
.attr("d", this.arc)
.style("fill", function(d) { return d.fill; })
.each(function(d) { this._current = that.updateArc(d); })
.on("click", this.zoomIn);
this.text = svg.selectAll("text").data(root);
this.textEnter = this.text.enter().append("text")
.style("fill-opacity", 1)
.style("fill", "white")
.attr("text-anchor", function(d) {
return x(d.x + d.dx / 2) >Math.PI ? "end" : "start";
})
.attr("dy", ".2em")
.attr("transform", function(d) {
var multiline = (d.name || "").split(" ").length > 1,
angle = x(d.x + d.dx / 2) * 180 / Math.PI - 90,
rotate = angle + (multiline ? -.5 : 0);
return "rotate(" + rotate + ")translate(" + (y(d.y) + padding) + ")rotate(" + (angle > 90 ? -180 : 0) + ")";
});
this.textEnter.append("tspan")
.attr("x", 0)
.text(function(d) { return d.name; });