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circularpacking.html
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<!DOCTYPE html>
<html lang="en">
<head>
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<meta charset="utf-8" />
<title>Circular Packing | the D3 Graph Gallery</title>
<meta
name="viewport"
content="width=device-width, initial-scale=1, shrink-to-fit=no"
/>
<meta
name="description"
content="Circular packing with Javascript and D3.js: from the most basic example to highly customized examples."
/>
<meta
name="keywords"
content="Data,Dataviz,Datavisualization,Javascript,D3,D3.js,pie chart"
/>
<meta name="author" content="Yan Holtz" />
<link rel="icon" href="img/logo/D3_single_small.png" />
<meta
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content="Circular Packing | the D3 Graph Gallery"
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<meta
property="og:description"
content="Circular packing with Javascript and D3.js: from the most basic example to highly customized examples."
/>
<!-- Bootstrap core CSS -->
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<!-- Custom styles for this template -->
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<!-- JQUERY -->
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<!-- D3.js -->
<script src="https://d3js.org/d3.v4.js"></script>
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</head>
<body id="page-top">
<!-- THIS ALLOWS TO INSERT THE MENU THAT IS STORED IN A MENU.HTML FILE-->
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<!-- Header -->
<header class="masthead" style="padding-top: 150px; padding-bottom: 80px">
<div class="textlanding">
<h1>Circular Packing</h1>
<hr class="short_hr" />
<br />
<ul class="list-inline social-buttons">
<li class="list-inline-item">
<a href="https://twitter.com/R_Graph_Gallery">
<i class="fa fa-twitter"></i>
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</a>
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<a href="https://www.yan-holtz.com">
<i class="fa fa-home"></i>
</a>
</li>
</ul>
<br /><br />
<p style="max-width: 700px; margin: auto">
<a href="https://www.data-to-viz.com/graph/circularpacking.html"
>Circular packing</a
>
or
<a href="https://www.data-to-viz.com/graph/circularpacking.html"
>circular treemap</a
>
allows to visualize a <u>hierarchic organization</u>. It is an
equivalent of a <a href="treemap.html">treemap</a> or a
<a href="dendrogram.html">dendrogram</a>, where each node of the tree
is represented as a circle and its sub-nodes are represented as
circles inside of it.
</p>
</div>
</header>
<!-- THIS ALLOWS TO INSERT THE ADVERTISEMENT BANNER THAT IS STORED IN A BANNER.HTML FILE-->
<div id="position_for_images"></div>
<script>
$(function () {
$("#position_for_images").load("html_chunk/images.html");
});
</script>
<!-- ======================== PORTFOLIO SECTION ============================ --><!-- Images must be 480 x 480, resize them with ./script_reformat_img.sh output_name.png -->
<section class="bg" id="portfolio" style="padding-top: 10px">
<div class="container">
<div class="mySeryTitle">Step by step</div>
<hr />
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/circularpacking_basic.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Most basic circular packing</p>
<hr />
<p class="explanation_portfolio">
Most basic examples: just applying a few forces on 8 nodes
</p>
</div>
</div>
<img
class="img-fluid"
src="img/graph/circularpacking_basic.gif"
alt=""
/>
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/circularpacking_drag.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Add dragging feature</p>
<hr />
<p class="explanation_portfolio">
Dragging allows you to interactively modify a node position,
updating other nodes automatically.
</p>
</div>
</div>
<img
class="img-fluid"
src="img/graph/circularpacking_drag.gif"
alt=""
/>
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/circularpacking_group.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Add group features</p>
<hr />
<p class="explanation_portfolio">
How to use group information on circular packing: change
color, attract to specific position...
</p>
</div>
</div>
<img
class="img-fluid"
src="img/graph/circularpacking_group.png"
alt=""
/>
</a>
</div>
</div>
<br /><br /><br /><br />
<div class="mySeryTitle">Template</div>
<hr />
<p>
Here is the
<a href="graph/circularpacking_template.html">template</a> I start
with when needing to build a circular packing with
<u>one level of hierarchy</u>. Input data is a
<u><code>.csv</code> file</u> giving features for each node. Circle
<u>size</u> an <u>color</u> depends on these features. You can
<u>drag circles</u> to reorganize, and <u>hover</u> them for more
information.
</p>
<a
class="btn btn-secondary btn-md text-uppercase"
target="_blank"
href="graph/circularpacking_template.html"
>See code</a
>
<center><div id="my_dataviz"></div></center>
<br /><br /><br /><br />
<div class="mySeryTitle">Selection of blocks</div>
<hr />
<p>
A selection of examples showing the application of the basic concept
to real life dataset.
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class="portfolio-link"
href="https://bl.ocks.org/HarryStevens/f636199a46fc4b210fbca3b1dc4ef372"
>
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Circular packing with one level of hierarchy</p>
<hr />
<p class="explanation_portfolio">
An example showing one bubble by country in a clean layout.
</p>
</div>
</div>
<img
class="img-fluid showBlock"
src="img/block/block_circularpack1level.png"
alt="network graph les miserables"
/>
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a
class="portfolio-link"
href="https://d3indepth.com/force-layout/"
>
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Overview of force layout</p>
<hr />
<p class="explanation_portfolio">
A cool post by d3 in depth I highly recommend to get
introduced to forces
</p>
</div>
</div>
<img
class="img-fluid showBlock"
src="img/block/block_circularpackD3indepth.png"
alt="network graph les miserables"
/>
</a>
</div>
</div>
</div>
</section>
<!-- ======================================================================= -->
<!-- ============================ CIRCULAR PACKING CHART ============================ -->
<style>
.node:hover {
stroke-width: 7px !important;
opacity: 1 !important;
}
</style>
<script>
// set the dimensions and margins of the graph
var width = 860;
var height = 460;
// append the svg object to the body of the page
var svg = d3
.select("#my_dataviz")
.append("svg")
.attr("width", width)
.attr("height", height);
// Read data
d3.csv(
"https://raw.githubusercontent.com/holtzy/data_to_viz/master/Example_dataset/11_SevCatOneNumNestedOneObsPerGroup.csv",
function (data) {
// Filter a bit the data
data = data.filter(function (d) {
return d.value > 10000000;
});
// Color palette for continents?
var color = d3
.scaleOrdinal()
.domain(["Asia", "Europe", "Africa", "Oceania", "Americas"])
.range(d3.schemeSet1);
// Color palette for continents?
var size = d3.scaleLinear().domain([0, 1400000000]).range([9, 70]);
// create a tooltip
var Tooltip = d3
.select("#my_dataviz")
.append("div")
.style("opacity", 0)
.attr("class", "tooltip")
.style("background-color", "white")
.style("border", "solid")
.style("border-width", "2px")
.style("border-radius", "5px")
.style("padding", "5px");
// Three function that change the tooltip when user hover / move / leave a cell
var mouseover = function (d) {
Tooltip.style("opacity", 1);
};
var mousemove = function (d) {
Tooltip.html(
"<u>" + d.key + "</u>" + "<br>" + d.value + " inhabitants"
)
.style("left", d3.event.pageX + 20 + "px")
.style("top", d3.event.pageY - 30 + "px");
};
var mouseleave = function (d) {
Tooltip.style("opacity", 0);
};
// Initialize the circle: all located at the center of the svg area
var node = svg
.append("g")
.selectAll("circle")
.data(data)
.enter()
.append("circle")
.attr("class", "node")
.attr("r", function (d) {
return size(d.value);
})
.attr("cx", width / 2)
.attr("cy", height / 2)
.style("fill", function (d) {
return color(d.region);
})
.style("fill-opacity", 0.7)
.attr("stroke", "black")
.style("stroke-width", 1)
.on("mouseover", mouseover)
.on("mousemove", mousemove)
.on("mouseleave", mouseleave)
.call(
d3
.drag() // call specific function when circle is dragged
.on("start", dragstarted)
.on("drag", dragged)
.on("end", dragended)
);
// Features of the forces applied to the nodes:
var simulation = d3
.forceSimulation()
.force("y", d3.forceY().y(height / 2)) // Attraction to the center of the svg area
.force(
"center",
d3
.forceCenter()
.x(width / 2)
.y(height / 2)
) // Attraction to the center of the svg area
.force("charge", d3.forceManyBody().strength(0.1)) // Nodes are attracted one each other of value is > 0
.force(
"collide",
d3
.forceCollide()
.strength(0.2)
.radius(function (d) {
return size(d.value) + 3;
})
.iterations(1)
); // Force that avoids circle overlapping
// Apply these forces to the nodes and update their positions.
// Once the force algorithm is happy with positions ('alpha' value is low enough), simulations will stop.
simulation.nodes(data).on("tick", function (d) {
node
.attr("cx", function (d) {
return d.x;
})
.attr("cy", function (d) {
return d.y;
});
});
// What happens when a circle is dragged?
function dragstarted(d) {
if (!d3.event.active) simulation.alphaTarget(0.03).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(0.03);
d.fx = null;
d.fy = null;
}
}
);
// Explanation
svg
.append("text")
.attr("text-anchor", "end")
.style("fill", "#B8B8B8")
.style("font-size", "14px")
.attr("x", width - 30)
.attr("y", height - 90)
.attr("width", 90)
.html("Distribution of the world population");
svg
.append("text")
.attr("text-anchor", "end")
.style("fill", "#B8B8B8")
.style("font-size", "14px")
.attr("x", width - 30)
.attr("y", height - 65)
.attr("width", 90)
.html("Hover and drag for more");
</script>
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<div class="container">
<p class="mySeryTitle">Related chart types</p>
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<a class="portfolio-link" href="treemap.html">
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<i class="fa fa-plus fa-3x"></i>
</div>
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<img class="img-fluid" src="img/section/Tree150.png" alt="" />
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<div class="captionPortfolio">Pie chart</div>
</div>
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</div>
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<div class="captionPortfolio">Circular packing</div>
</div>
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var t, n;
function r() {
var t = e.createElement("script");
(t.src =
"https://cafemedia-com.videoplayerhub.com/galleryplayer.js"),
e.head.appendChild(t);
}
function a() {
var t = e.cookie.match("(^|[^;]+)\s*__adblocker\s*=\s*([^;]+)");
return t && t.pop();
}
function c() {
clearInterval(n);
}
return {
init: function () {
var e;
"true" === (t = a())
? r()
: ((e = 0),
(n = setInterval(function () {
(100 !== e && "false" !== t) || c(),
"true" === t && (r(), c()),
(t = a()),
e++;
}, 50)));
},
};
})().init();
})();
</script>
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<script>
$(function () {
$("#myFooter").load("html_chunk/footer.html");
});
</script>
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<script src="vendor/bootstrap/js/bootstrap.bundle.min.js"></script>
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