d3.js tree layout is bunching everything up at the top - javascript

I'm trying to use d3js to create a tree graph with two nodes connected to each other. My JS is as follows:
var width = window.innerWidth;
var height = window.innerHeight;
var nodes = [{"id":"1","name":"a"},{"id":"2","name":"b"}];
var links = [{"source":0,"target":1}];
var svg = d3.select("body").append("svg");
svg.attr("width", width);
svg.attr("height", height);
svg.append("svg:g");
var tree = d3.layout.tree();
tree.size([width, height]);
tree.nodes(nodes);
tree.links(links);
var diagonal = d3.svg.diagonal.radial()
.projection(function(d) { return [d.y, d.x / 180 * Math.PI]; });
var link = svg.selectAll(".link")
.data(links)
.enter().append("path")
.attr("class", "link")
.attr("d", diagonal);
var node = svg.selectAll(".node")
.data(nodes)
.enter().append("g")
.attr("class", "node")
.attr("transform", function(d) { return "rotate(" + (d.x - 90) + ")translate(" + d.y + ")"; })
node.append("circle")
.attr("r", 4.5);
node.append("text")
.text(function(d) { return d.name; });
So I'm setting the width and height of the SVG equal to the window width / height. And yet everything is bunched up at the top right.
My JS Fiddle: https://jsfiddle.net/eeLfog4m/1/
Any ideas?
What'd be helpful is a d3js demo without all the bells and whistles. http://bl.ocks.org/mbostock/4063550 rotates everything around the center. http://bl.ocks.org/d3noob/8375092 seems to have a lot of extra code for handling redrawing / collapsing of nodes and https://github.com/mbostock/d3/wiki/Tree-Layout doesn't have any examples at all.

The reason you are seeing everything squished at the top-left corner is because all attributes are either NaN or undefined. This is because you are using
.projection(function(d) { return [d.y, d.x / 180 * Math.PI]; });
and
.attr("transform", function(d) {
return "rotate(" + (d.x - 90) + ")translate(" + d.y + ")";
});
which is accessing d.x and d.y, which are undefined.
Ideally, d.x and d.y are generated by the layout algorithms like d3.layout.tree(). However, in the code you provided, the data that you are passing into the tree-layout algorithm is incorrect.
d3.tree.layout() expects a hierarchical data structure, whereas you are providing it links and nodes, which will not work without some major workaround. If you want to use tree-layout, I suggest you convert your data into a hierarchical structure and then visualize it. Here is an example of doing that
var width = window.innerWidth;
var height = window.innerHeight;
var root = {
"name": "1",
"children": [
{"name": "2"}
]
};
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var tree = d3.layout.tree()
.size([width, height-40]);
var nodes = tree.nodes(root);
var links = tree.links(nodes);
var path = d3.svg.line()
.x(function(d) { return d.x; })
.y(function(d) { return d.y; });
var link = svg.selectAll(".link")
.data(links)
.enter()
.append("path")
.attr("class", "link")
.attr("stroke", "black")
.attr("stroke-width", 2);
.attr("d", function(d){
return path([d.source, d.target])
});
var node = svg.selectAll(".node")
.data(nodes)
.enter().append("g")
.attr("class", "node")
.attr("transform", function(d) {
return "translate(" + d.x + "," + (d.y + 20) + ")"; })
node.append("circle")
.attr("r", 4.5);
node.append("text")
.text(function(d) { return d.name; });
If however, you want to stick with the current data format:
var nodes = [{"id":"1","name":"a"},{"id":"2","name":"b"}];
var links = [{"source":0,"target":1}];
you should use force-directed layout.
Here is an example of using force-directed layout with the data structure you have (http://jsfiddle.net/ankit89/3kL11j6j/)
var graph = {
"nodes": [
{"name": "Leo"},
{"name": "Mike"},
{"name": "Raph"},
{"name": "Don"},
{"name": "Splinter"}
],
"links": [
{"source": 0, "target": 4, "relation": "son"},
{"source": 1, "target": 4, "relation": "son"},
{"source": 2, "target": 4, "relation": "son"},
{"source": 3, "target": 4, "relation": "son"}
]}
var force = d3.layout.force()
.nodes(graph.nodes)
.links(graph.links)
.size([400, 400])
.linkDistance(120)
.charge(-30)
.start();
var svg = d3.select("svg");
var link = svg.selectAll("line")
.data(graph.links)
.enter().append("line")
.style("stroke", "black");
var node = svg.selectAll("circle")
.data(graph.nodes)
.enter().append("circle")
.attr("r", 20)
.style("fill", "grey")
.call(force.drag);
node.append("title")
.text(function(d) { return d.name; });
force.on("tick", function() {
link.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
})
And finally, you do not necessarily need d3 layouts, you can even use your custom layout like this
http://jsfiddle.net/ankit89/uts5orrd/5/
var graph = {
"nodes": [
{"name": "Leo", "level": 1},
{"name": "Mike", "level": 1},
{"name": "Raph", "level": 1},
{"name": "Don", "level": 1},
{"name": "Splinter", "level": 2}
],
"links": [
{"source": 0, "target": 4, "relation": "son"},
{"source": 1, "target": 4, "relation": "son"},
{"source": 2, "target": 4, "relation": "son"},
{"source": 3, "target": 4, "relation": "son"}
]}
var svg = d3.select("svg");
svg.selectAll("circle")
.data(graph.nodes)
.enter()
.append("circle")
.attr({
"cx": function(d, i){
var x;
if(d.level == 1){
x = i*100 + 100;
}else{
x = 250;
}
d.x = x;
return x;
},
"cy": function(d, i){
var y;
if(d.level == 1){
y = 260;
}else{
y = 60;
}
d.y = y;
return y;
},
"r" : 30,
"fill": "gray",
"opacity": .5
})
svg.selectAll("text")
.data(graph.nodes)
.enter()
.append("text")
.attr({
"x": function(d){return d.x},
"y": function(d){return d.y},
fill: "steelblue"
})
.text(function(d){
return d.name;
})
svg.selectAll("line")
.data(graph.links)
.enter()
.append("line")
.attr({
"x1": sourceX,
"y1": sourceY,
"x2": targetX,
"y2": targetY,
"stroke-width": 2,
"stroke": "grey"
})
function sourceX(d, i){
var t = graph.nodes[d.source].x;
return t;
}
function sourceY(d, i){
var t = graph.nodes[d.source].y;
return t;
}
function targetX(d, i){
var t = graph.nodes[d.target].x;
return t;
}
function targetY(d, i){
var t = graph.nodes[d.target].y;
return t;
}
//console.log(graph.nodes)
Here is the gist of the story:
If using d3 layout, make your data structure match the data-structure expected by the layout and d3 will compute the x and y coordinates for you.
If using want a custom layout, write function to determine the x and y coordinates for nodes and the links.

Related

Text invisible yet appearing in inspector

My last question was answered so quickly and smoothly I thought I'd return with another issue I'm failing to figure out on my own.
I used one of the examples to create this graph:
data = [{ "label": "1", "value": 20 },
{ "label": "2", "value": 50 },
{ "label": "3", "value": 30 },
{ "label": "4", "value": 45 }];
var width = 400,
height = 450;
var outerRadius = 200,
innerRadius = outerRadius / 3,
color = d3.scale.category20c();
var pie = d3.layout.pie()
.value(function (d) { return d.value; });
var pieData = pie(data);
var arc = d3.svg.arc()
.innerRadius(innerRadius);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + outerRadius + "," + (outerRadius + 50) + ")");
svg.append("text")
.attr("x", 0)
.attr("y", -(outerRadius + 10))
.style("text-anchor", "middle")
.text("Title[enter image description here][1]");
svg.selectAll("path")
.data(pieData)
.enter().append("path")
.each(function (d) { d.outerRadius = outerRadius - 20; })
.attr("d", arc)
.attr("fill", function (d, i) { return color(i); })
.on("mouseover", arcTween(outerRadius, 0))
.on("mouseout", arcTween(outerRadius - 20, 150));
svg.selectAll("path")
.append("text")
.attr("transform", function (d) {
d.innerRadius = 0;
d.outerRadius = outerRadius;
return "translate(" + arc.centroid(d) + ")";
})
.attr("fill", "white")
.attr("text-anchor", "middle")
.text(function (d, i) { return data[i].label; });
function arcTween(outerRadius, delay) {
return function () {
d3.select(this).transition().delay(delay).attrTween("d", function (d) {
var i = d3.interpolate(d.outerRadius, outerRadius);
return function (t) { d.outerRadius = i(t); return arc(d); };
});
};
}
The idea being that when you hover over a section on the pie chart (donut chart?) it expands. However, this made my labels dissapear and I can't manage to make them come back. I either get an error, or they just don't show up on the screen (even though I see the tag in the inspector). Any obvious thing I'm missing?
Thanks!
You cannot append a <text> element to a <path> element. It simply doesn't work in an SVG. Even not working, the <text> element will be appended.
That being said, a solution is creating a new "enter" selection for the texts:
svg.selectAll(null)
.data(pieData)
.enter()
.append("text")
.attr("transform", function(d) {
d.innerRadius = 0;
d.outerRadius = outerRadius;
return "translate(" + arc.centroid(d) + ")";
})
.attr("fill", "white")
.attr("text-anchor", "middle")
.text(function(d, i) {
return data[i].label;
});
Here is your updated code:
data = [{
"label": "1",
"value": 20
}, {
"label": "2",
"value": 50
}, {
"label": "3",
"value": 30
}, {
"label": "4",
"value": 45
}];
var width = 400,
height = 450;
var outerRadius = 200,
innerRadius = outerRadius / 3,
color = d3.scale.category20c();
var pie = d3.layout.pie()
.value(function(d) {
return d.value;
});
var pieData = pie(data);
var arc = d3.svg.arc()
.innerRadius(innerRadius);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + outerRadius + "," + (outerRadius + 50) + ")");
svg.append("text")
.attr("x", 0)
.attr("y", -(outerRadius + 10))
.style("text-anchor", "middle")
.text("Title[enter image description here][1]");
svg.selectAll("path")
.data(pieData)
.enter().append("path")
.each(function(d) {
d.outerRadius = outerRadius - 20;
})
.attr("d", arc)
.attr("fill", function(d, i) {
return color(i);
})
.on("mouseover", arcTween(outerRadius, 0))
.on("mouseout", arcTween(outerRadius - 20, 150));
svg.selectAll(null)
.data(pieData)
.enter()
.append("text")
.attr("transform", function(d) {
d.innerRadius = 0;
d.outerRadius = outerRadius;
return "translate(" + arc.centroid(d) + ")";
})
.attr("fill", "white")
.attr("text-anchor", "middle")
.text(function(d, i) {
return data[i].label;
});
function arcTween(outerRadius, delay) {
return function() {
d3.select(this).transition().delay(delay).attrTween("d", function(d) {
var i = d3.interpolate(d.outerRadius, outerRadius);
return function(t) {
d.outerRadius = i(t);
return arc(d);
};
});
};
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>

d3js Force Directed Graph - Click on node to popup infobox which read from JSON

I have been working with Force-Directed Graph but I am still new to D3js and Javascript.
I want to able to click on the node and the infobox popup on the page and print some information about that node (from JSON).
Example of my json file:
{"directed": false, "graph": {},
"nodes": [{"id": 0, "name":"Ant" , "info":"Small Animal"},
{"id": 1 , "name":"Apple" , "info":"Fruit"},
{"id": 2 , "name":"Bat" , "info":"Fly Animal"},
{"id": 3 , "name":"Boat" , "info":"Vehicle"},
{"id": 4 , "name":"Banana" , "info":"Long cute Fruit"},
{"id": 5 , "name":"Cat" , "info":"Best Animal"}],
"links": [{"source": 0, "target": 0 , "weight":1}, {"source": 0, "target": 2, "weight": 0.3},
{"source": 0, "target": 5, "weight":0.8}, {"source": 1, "target": 1, "weight":1},
{"source": 1, "target": 4, "weight":0.5}, {"source": 2, "target": 2, "weight":1},
{"source": 3, "target": 3, "weight":1}, {"source": 4, "target": 4, "weight":1},
{"source": 5, "target": 5, "weight":1}],
"multigraph": false}
So when I click on a node. It should popup something like:
Name: Ant
Info: Small Animal
Connected to: Bat with 0.3 weight , Cat with 0.8 weight
My graph code were pretty much like the example of force-directed that I link above.
Here's a quick implementation, it builds your "infobox" using SVG:
var tip;
node.on("click", function(d){
if (tip) tip.remove();
tip = svg.append("g")
.attr("transform", "translate(" + d.x + "," + d.y + ")");
var rect = tip.append("rect")
.style("fill", "white")
.style("stroke", "steelblue");
tip.append("text")
.text("Name: " + d.name)
.attr("dy", "1em")
.attr("x", 5);
tip.append("text")
.text("Info: " + d.info)
.attr("dy", "2em")
.attr("x", 5);
var con = graph.links
.filter(function(d1){
return d1.source.id === d.id;
})
.map(function(d1){
return d1.target.name + " with weight " + d1.weight;
})
tip.append("text")
.text("Connected to: " + con.join(","))
.attr("dy", "3em")
.attr("x", 5);
var bbox = tip.node().getBBox();
rect.attr("width", bbox.width + 5)
.attr("height", bbox.height + 5)
});
Running code:
<!DOCTYPE html>
<meta charset="utf-8">
<style>
.links line {
stroke: #999;
stroke-opacity: 0.6;
}
.nodes circle {
stroke: #fff;
stroke-width: 1.5px;
}
text {
font-family: sans-serif;
}
</style>
<svg width="960" height="600"></svg>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script>
var svg = d3.select("svg"),
width = +svg.attr("width"),
height = +svg.attr("height");
var color = d3.scaleOrdinal(d3.schemeCategory20);
var simulation = d3.forceSimulation()
.force("link", d3.forceLink().id(function(d) { return d.id; }))
.force("charge", d3.forceManyBody())
.force("center", d3.forceCenter(width / 2, height / 2));
d3.json("https://jsonblob.com/api/15daa79f-7573-11e8-b9d7-1b0997147957", function(error, graph) {
if (error) throw error;
link = svg.append("g")
.attr("class", "links")
.selectAll("line")
.data(graph.links)
.enter().append("line")
.attr("stroke-width", function(d) { return d.weight * 3; });
var node = svg.append("g")
.attr("class", "nodes")
.selectAll("circle")
.data(graph.nodes)
.enter().append("circle")
.attr("r", 5)
.attr("fill", function(d) { return color(d.group); })
.call(d3.drag()
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended));
var tip;
svg.on("click", function(){
if (tip) tip.remove();
});
node.on("click", function(d){
d3.event.stopPropagation();
if (tip) tip.remove();
tip = svg.append("g")
.attr("transform", "translate(" + d.x + "," + d.y + ")");
var rect = tip.append("rect")
.style("fill", "white")
.style("stroke", "steelblue");
tip.append("text")
.text("Name: " + d.name)
.attr("dy", "1em")
.attr("x", 5);
tip.append("text")
.text("Info: " + d.info)
.attr("dy", "2em")
.attr("x", 5);
var con = graph.links
.filter(function(d1){
return d1.source.id === d.id;
})
.map(function(d1){
return d1.target.name + " with weight " + d1.weight;
})
tip.append("text")
.text("Connected to: " + con.join(","))
.attr("dy", "3em")
.attr("x", 5);
var bbox = tip.node().getBBox();
rect.attr("width", bbox.width + 5)
.attr("height", bbox.height + 5)
});
simulation
.nodes(graph.nodes)
.on("tick", ticked);
simulation.force("link")
.links(graph.links);
function ticked() {
link
.attr("x1", function(d) { return d.source.x; })
.attr("y1", function(d) { return d.source.y; })
.attr("x2", function(d) { return d.target.x; })
.attr("y2", function(d) { return d.target.y; });
node
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; });
}
});
function dragstarted(d) {
if (!d3.event.active) simulation.alphaTarget(0.3).restart();
d.fx = d.x;
d.fy = d.y;
}
function dragged(d) {
d.fx = d3.event.x;
d.fy = d3.event.y;
}
function dragended(d) {
if (!d3.event.active) simulation.alphaTarget(0);
d.fx = null;
d.fy = null;
}
</script>
You can add click event on node using .on('click', function(d){ });
For example:
node.on("click", function(d){
console.log(d);
// here you can access data of node using d.key
alert("You clicked on node " + d.name);
});

d3.js animation of a dougnut pie chart

I am working on an application that will be a hybrid pie chart and bubble chart -
here is a working animation for a simple doughnut pie chart.
http://jsfiddle.net/Qh9X5/8817/
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 = 560,
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 * 0.85)
.innerRadius(radius * 0.83);
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"])
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56"]);
function randomData (){
var labels = color.domain();
return labels.map(function(label){
return { label: label, value: Math.random() }
});
}
console.log("randomData()", randomData());
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();
};
http://jsfiddle.net/NYEaX/1487/
This is a static doughnut chart -- where I have calculated the mid-arcs -- but have lost the animation. So with the above sample of code -- where is it possible to obtain the arc.centroid(d)?
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 - 60)
.innerRadius(radius - 70);
var pie = d3.layout.pie()
.sort(null)
.value(function(d) { return d.value; });
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
.append("g")
.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
var data = [
{
"group": "<5",
"value": 1000,
"children": [
{
"group": "<5",
"label": "Mel",
"value": 1000,
"totalGroupValue": 1000
}
]
},
{
"group": "5-13",
"value": 1000,
"children": [
{
"group": "5-13",
"label": "Erica",
"value": 1000,
"totalGroupValue": 1000
}
]
},
{
"group": "14-17",
"value": 2000,
"children": [
{
"group": "14-17",
"label": "Jessica",
"value": 1500,
"totalGroupValue": 2000
},
{
"group": "14-17",
"label": "Jill",
"value": 500,
"totalGroupValue": 2000
}
]
},
{
"group": "18-24",
"value": 1300,
"children": [
{
"group": "18-24",
"label": "Jerry",
"value": 500,
"totalGroupValue": 1300
},
{
"group": "18-24",
"label": "Ben",
"value": 500,
"totalGroupValue": 1300
},
{
"group": "18-24",
"label": "Billy",
"value": 300,
"totalGroupValue": 1300
}
]
},
{
"group": "25-44",
"value": 1000,
"children": [
{
"group": "25-44",
"label": "Kelly",
"value": 1000,
"totalGroupValue": 1000
}
]
}
];
var g = svg.selectAll(".arc")
.data(pie(data))
.enter().append("g")
.attr("class", "arc");
g.append("path")
.attr("d", arc)
.style("fill", function(d) {
return color(d.data.group);
});
arc
.outerRadius(radius - 10)
.innerRadius(0);
//create zone regions
var zones = [];
g.append("circle")
.attr("transform", function(d) {
zones[d.data.group] = arc.centroid(d);
return "translate(" + arc.centroid(d) + ")";
})
.attr("r", "1px")
.style("fill", function(d) {
return "black"//color(d.data.group);
});
g.append("g")
.attr("class", function(d,i) {
console.log("d", d)
return "bubble"+i;//color(d.data.group);
})
.attr("transform", function(d) {
zones[d.data.group] = arc.centroid(d);
return "translate(" + arc.centroid(d) + ")";
})
.attr("r", "1px")
.style("fill", function(d) {
return "black"//color(d.data.group);
});
//create zone regions
//custom bubble chart
function makeBubbles(transform, group, radius){
g.append("circle")
.attr("transform", function(d) {
return "translate("+transform+")";
})
.attr("r", radius)
.style("stroke", function(d) {
return "black";//color(group);
})
.style("fill", function(d) {
return color(group);
});
}
function bubbledata(data){
console.log("data", data)
//loop through data -- and MERGE children
var childs = [];
$.each(data, function( index, value ) {
childs.push(value.children);
});
var merged = data;//[].concat.apply([], childs);//flatterns multidimensional array
return $.extend(true, {}, {"children": merged});// return deep clone
}
function setBubbleChart(width, index, data){
//_create bubble
var diameter = width/2;//take half/width
var bubs = svg.select(".bubble"+index).append("g")
.attr("class", "bubs");
bubs.attr("transform", "translate("+-diameter/2+","+-diameter/2+")");
var bubble = d3.layout.pack()
.size([diameter, diameter])
.value(function(d) {
return d.value;
})
.padding(3);
//_create bubble
var data = bubbledata(data);
var nodes = bubble.nodes(data)
.filter(function(d) {
return !d.children;
}); // filter out the outer bubble
var bubbles = bubs.selectAll('circle')
.data(nodes);
bubbles.enter()
.insert("circle")
.attr('transform', function (d) {
return 'translate(' + d.x + ',' + d.y + ')';
})
.attr('r', function (d) {
return d.r;
})
.style("fill", function (d) {
return color(d.group);
});
bubbles = bubbles.transition()
.transition()
.duration(250)
.attr('transform', function(d) {
return 'translate(' + d.x + ',' + d.y + ')';
})
.attr('r', function (d) {
return d.r;
})
.ease('sine');
}
//loop through data and for EACH children array paint dots.
$.each(data, function( index, value ) {
setBubbleChart(100, index, value.children);
});
//custom bubble chart
function type(d) {
d.value = +d.value;
return d;
}
I've plotted the mid-arcs - but they are not being updated on a change of data?
http://jsfiddle.net/Qh9X5/10066/
function change(data) {
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();
var placeholders = svg.select(".placeholders").selectAll("circle.placeholder")
.data(pie(data), key);
placeholders.enter()
.insert("circle")
.style("fill", function(d) {
return "white";
//return color(d.data.label);
})
.attr("transform", function(d) {
return "translate(" + arc.centroid(d) + ")";
})
.attr("r", "5")
.attr("class", "placeholder");
placeholders
.transition().duration(1000)
placeholders.exit()
.remove();
};
I've managed to create an arc2 -- and animate the placeholders.
http://jsfiddle.net/Qh9X5/10068/
var svg = d3.select("#pies")
.append("svg")
.append("g")
svg.append("g")
.attr("class", "slices");
svg.append("g")
.attr("class", "placeholders");
svg.append("g")
.attr("class", "labels");
svg.append("g")
.attr("class", "lines");
var width = 560,
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 * 0.85)
.innerRadius(radius * 0.83);
var arc2 = d3.svg.arc()
.outerRadius(radius - 10)
.innerRadius(0);
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"])
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56"]);
function randomData() {
var labels = color.domain();
return labels.map(function(label) {
return {
label: label,
value: Math.random()
}
});
}
console.log("randomData()", randomData());
change(randomData());
d3.select(".randomize")
.on("click", function() {
change(randomData());
});
function change(data) {
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();
var placeholders = svg.select(".placeholders").selectAll("circle.placeholder")
.data(pie(data), key);
placeholders.enter()
.insert("circle")
.style("fill", function(d) {
return "white";
})
.attr("r", "5")
.attr("class", "placeholder");
placeholders
.transition().duration(1000)
.attr("transform", function(d) {
console.log("arc.centroid(d)", arc2.centroid(d))
return "translate(" + arc2.centroid(d) + ")";
})
placeholders.exit()
.remove();
};
http://jsfiddle.net/Qh9X5/10075/
I have managed to merge the pie chart with the bubble chart -- if the data sets change - the animations should be stable.
var svg = d3.select("#pies")
.append("svg")
.append("g")
svg.append("g")
.attr("class", "slices");
svg.append("g")
.attr("class", "placeholders");
var width = 560,
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 * 0.85)
.innerRadius(radius * 0.83);
var arc2 = d3.svg.arc()
.outerRadius(radius - 10)
.innerRadius(0);
var outerArc = d3.svg.arc()
.innerRadius(radius * 0.9)
.outerRadius(radius * 0.9);
svg.attr("transform", "translate(" + width / 2 + "," + height / 2 + ")");
function colores_google(n) {
var colores_g = ["#f7b363", "#448875", "#c12f39", "#2b2d39", "#f8dd2f"];
return colores_g[n % colores_g.length];
}
var data = [{
"group": "<5",
"value": 1000,
"children": [{
"group": "<5",
"label": "Mel",
"value": 1000,
"totalGroupValue": 1000
}]
}, {
"group": "5-13",
"value": 1000,
"children": [{
"group": "5-13",
"label": "Erica",
"value": 1000,
"totalGroupValue": 1000
}]
}, {
"group": "14-17",
"value": 2000,
"children": [{
"group": "14-17",
"label": "Jessica",
"value": 1500,
"totalGroupValue": 2000
}, {
"group": "14-17",
"label": "Jill",
"value": 500,
"totalGroupValue": 2000
}]
}, {
"group": "18-24",
"value": 1300,
"children": [{
"group": "18-24",
"label": "Jerry",
"value": 500,
"totalGroupValue": 1300
}, {
"group": "18-24",
"label": "Ben",
"value": 500,
"totalGroupValue": 1300
}, {
"group": "18-24",
"label": "Billy",
"value": 300,
"totalGroupValue": 1300
}]
}, {
"group": "25-44",
"value": 1000,
"children": [{
"group": "25-44",
"label": "Kelly",
"value": 1000,
"totalGroupValue": 1000
}]
}];
$.each(data, function(index, value) {
value["groupid"] = index;
$.each(value.children, function(i, v) {
v["groupid"] = index;
});
});
//slices
var slice = svg.select(".slices").selectAll("path.slice")
.data(pie(data));
slice.enter()
.insert("path")
.style("fill", function(d) {
return colores_google(d.data.groupid);
})
.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();
//slices
//placeholder bubbles
var placeholders = svg.select(".placeholders").selectAll("g.placeholder")
.data(pie(data));
placeholders.enter()
.insert("g")
.attr("class", function(d, i) {
return "placeholder place" + i;
});
placeholders
.transition().duration(1000)
.attr("transform", function(d) {
return "translate(" + arc2.centroid(d) + ")";
})
placeholders.exit()
.remove();
//placeholder bubbles
//bubbles
function bubbledata(data) {
//loop through data -- and MERGE children
var childs = [];
$.each(data, function(index, value) {
childs.push(value.children);
});
return $.extend(true, {}, {
"children": data
}); // return deep clone
}
function setBubbleChart(width, index, data) {
//_create bubble
var diameter = width / 2; //take half/width
var bubs = svg.select(".place" + index).append("g")
.attr("class", "bubs");
bubs.attr("transform", "translate(" + -diameter / 2 + "," + -diameter / 2 + ")");
var bubble = d3.layout.pack()
.size([diameter, diameter])
.value(function(d) {
return d.value;
})
.padding(3);
//_create bubble
var data = bubbledata(data);
var nodes = bubble.nodes(data)
.filter(function(d) {
return !d.children;
}); // filter out the outer bubble
var bubbles = bubs.selectAll('circle')
.data(nodes);
bubbles.enter()
.insert("circle")
.attr('transform', function(d) {
return 'translate(' + d.x + ',' + d.y + ')';
})
.attr('r', function(d) {
return d.r;
})
.style("fill", function(d) {
return colores_google(d.groupid);
});
bubbles = bubbles.transition()
.transition()
.duration(250)
.attr('transform', function(d) {
return 'translate(' + d.x + ',' + d.y + ')';
})
.attr('r', function(d) {
return d.r;
})
.ease('sine');
}
//loop through data and for EACH children array paint dots.
$.each(data, function(index, value) {
setBubbleChart(100, index, value.children);
});
//custom bubble chart

vertical collapsing treemap

using examples found in the book D3 tips and tricks I made a vertical collapsing/expanding dendrogram/treemap.
see what I did here! (the problem)
So far so good.
...However.
Q1: I'd like the map to start collapsed, i.e. showing only the first node.
(I looked for an answer on stack overflow (almost found it, but it uses the flare chart, and I could not get the altered code to work on my chart.)
Q2:the nodes fly out from the bottom left corner, but I want them to take the first node as origin. Fiddled with various settings, nothing helped.
Q3: I'd like the node "kwaliteit" to be a hyperlink directing to another page.
anyone has an answer?
here's my code:
<script src="http://d3js.org/d3.v3.min.js"></script>
<script>
var treeData = [
{
"name": "jaar",
"parent": "null",
"children": [
{
"name": "2014",
"parent": "jaar",
"children": [
{
"name": "kwaliteit",
"parent": "2014"
},
{
"name": "geen data",
"parent": "2014"
}
]
},
{
"name": "2015 (geen data)",
"parent": "jaar"
}
]
}
];
// ************** Generate the tree diagram *****************
var margin = {top: 20, right: 120, bottom: 20, left: 120},
width = 960 - margin.right - margin.left,
height = 500 - margin.top - margin.bottom;
var i = 0,
duration = 750,
root;
var tree = d3.layout.tree()
.size([width, height]);
var diagonal = d3.svg.diagonal()
.projection(function(d) { return [d.x, d.y]; });
var svg = d3.select("body").append("svg")
.attr("width", width + margin.right + margin.left)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
root = treeData[0];
root.x0 = height / 2;
root.y0 = 0;
update(root);
d3.select(self.frameElement).style("height", "500px");
function update(source) {
// Compute the new tree layout.
var nodes = tree.nodes(root).reverse(),
links = tree.links(nodes);
// Normalize for fixed-depth.
nodes.forEach(function(d) { d.y = d.depth * 100; });
// Update the nodes…
var node = svg.selectAll("g.node")
.data(nodes, function(d) { return d.id || (d.id = ++i); });
// Enter any new nodes at the parent's previous position.
var nodeEnter = node.enter().append("g")
.attr("class", "node")
.attr("transform", function(d) { return "translate(" + source.y0 + "," + source.x0 + ")"; })
.on("click", click);
nodeEnter.append("circle")
.attr("r", 1e-6)
.style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; });
nodeEnter.append("text")
.attr("y", function(d) {
return d.children || d._children ? -18 : 18; })
.attr("dy", ".35em")
.attr("text-anchor", "middle")
.text(function(d) { return d.name; })
.style("fill-opacity", 1);
// Transition nodes to their new position.
var nodeUpdate = node.transition()
.duration(duration)
.attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });
nodeUpdate.select("circle")
.attr("r", 10)
.style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; });
nodeUpdate.select("text")
.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 = svg.selectAll("path.link")
.data(links, function(d) { return d.target.id; });
// Enter any new links at the parent's previous position.
link.enter().insert("path", "g")
.attr("class", "link")
.attr("d", function(d) {
var o = {x: source.x0, y: source.y0};
return diagonal({source: o, target: o});
});
// 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;
});
}
// Toggle children on click.
function click(d) {
if (d.children) {
d._children = d.children;
d.children = null;
} else {
d.children = d._children;
d._children = null;
}
update(d);
}
</script>
Q1: I'd like the map to start collapsed, i.e. showing only the first node
The easiest way to do this is to just rename all your children properties and call them _children instead
var treeData = [
{
"name": "jaar",
"parent": "null",
"_children": [
{
"name": "2014",
"parent": "jaar",
"_children": [
{
"name": "kwaliteit",
"parent": "2014"
},
{
"name": "geen data",
"parent": "2014"
}
]
},
{
"name": "2015 (geen data)",
"parent": "jaar"
}
]
}
];
Q2:the nodes fly out from the bottom left corner, but I want them to take the first node as origin.
Just swap your x0 and y0 values in your enter()
var nodeEnter = node.enter().append("g")
.attr("class", "node")
.attr("transform", function (d) {
return "translate(" + source.x0 + "," + source.y0 + ")";
})
.on("click", click);
Q3: I'd like the node "kwaliteit" to be a hyperlink
Append an a and set the hyperlink by looking at the text (alternatively, you could also put this in your data structure)
.append("a")
.attr("href", function (d) { if (d.name === "kwaliteit") return "myurl" })
and if you can't get it working in Chrome just use this instead
.on("click", function (d) { if (d.name === "kwaliteit") window.location.href = "myurl" })
Fiddle - http://jsfiddle.net/gaa4v3gu/

Legend in D3 circle pack diagram

I need to create a legend for the bubble/circle pack chart. I'm displaying the values inside the circle. I need the names as the legend. For an instance, in the below provided data, if the value is 60, i need that name "Petrol" in the legend. How could i achieve it?
Snippet:
var diameter = 200,
format = d3.format(",d"),
color = ["#7b6888", "#ccc", "#aaa", "#6b486b"];
var bubble = d3.layout.pack().size([diameter, diameter]);
var svg = d3.select("#bubbleCharts").append("svg")
.attr("width", diameter + 10)
.attr("height", diameter)
.attr("class", "bubble");
d3.json("flare.json", function(error, root) {
var node = svg.selectAll(".node")
.data(bubble.nodes(classes(root))
.filter(function(d) { return !d.children; }))
.enter().append("g")
.attr("class", "node")
.attr("transform", function(d) { return "translate(" + d.x + 20 + "," + d.y + ")"; });
node.append("circle").attr("r", function(d) { return d.r+ 7; })
.style("fill", function(d,i) { return color[i];} );
node.append("text").attr("dy", ".3em").style("text-anchor", "middle")
.text(function(d) { return d.value+"%"; });
});
function classes(root) {
var classes = [];
function recurse(name, node) {
if (node.children)
node.children.forEach(function(child){
recurse(node.name, child);
});
else
classes.push({packageName: name, value: node.value});
}
recurse(null, root);
return {children: classes};
}
var legend = d3.select("#bubbleChart").append("svg")
.selectAll("g").data(node.children).enter().append("g")
.attr("class","legend")
.attr("width", radius)
.attr("height", radius * 2)
.attr("transform", function(d, i) {return "translate(" + i *10 + "0" + ")"; });
legend.append("rect").attr("width", 18).attr("height", 10)
.style("fill", function(d, i) { return color[i];});
legend.append("text").attr("x", 24).attr("y", 5).attr("dy", ".35em")
.text(function(d) { return d; });
My data:
{
"name": "Spending Activity",
"children": [
{"name": "Petrol", "value": 10},
{"name": "Travel", "value": 60},
{"name": "Medical", "value": 25},
{"name": "Shopping", "value": 5}
]
}
How would i take the values from json and create a legend? Thanks.
You can simply iterate through your data set and add those values:
legend.selectAll("circle").data(data.children)
.enter()
.append("circle")
.attr("cy", function(d,i) { return (i+1) * 10; })
.attr("r", function(d) { return d.r+ 7; })
.style("fill", function(d,i) {
return color[i];
});
legend.selectAll("text").data(data.children)
.enter()
.append("text")
.attr("transform", function(d,i) {
return "translate(10," + ((i+1) * 10) + ")";
});

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