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bubble.html
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<!DOCTYPE html>
<html lang="en">
<head>
<!-- AdThrive Head Tag Manual -->
<script data-no-optimize="1" data-cfasync="false">
(function (w, d) {
w.adthrive = w.adthrive || {};
w.adthrive.cmd = w.adthrive.cmd || [];
w.adthrive.plugin = "adthrive-ads-manual";
w.adthrive.host = "ads.adthrive.com";
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s.async = true;
s.referrerpolicy = "no-referrer-when-downgrade";
s.src =
"https://" +
w.adthrive.host +
"/sites/643436a4e6d20859e40a446b/ads.min.js?referrer=" +
w.encodeURIComponent(w.location.href) +
"&cb=" +
(Math.floor(Math.random() * 100) + 1);
var n = d.getElementsByTagName("script")[0];
n.parentNode.insertBefore(s, n);
})(window, document);
</script>
<!-- End of AdThrive Head Tag -->
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async
src="https://www.googletagmanager.com/gtag/js?id=UA-79254642-6"
></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag() {
dataLayer.push(arguments);
}
gtag("js", new Date());
gtag("config", "UA-79254642-6");
</script>
<meta charset="utf-8" />
<title>Bubble plot | the D3 Graph Gallery</title>
<meta
name="viewport"
content="width=device-width, initial-scale=1, shrink-to-fit=no"
/>
<meta
name="description"
content="How to build bubble plots 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,bubble plot"
/>
<meta name="author" content="Yan Holtz" />
<link rel="icon" href="img/logo/D3_single_small.png" />
<meta
property="og:title"
content="Bubble plot | the D3 Graph Gallery"
/>
<meta property="og:image" content="img/overview_RGG.png" />
<meta
property="og:description"
content="How to build bubble plots with Javascript and D3.js: from the most basic example to highly customized examples."
/>
<!-- Bootstrap core CSS -->
<link href="vendor/bootstrap/css/bootstrap.min.css" rel="stylesheet" />
<!-- Custom fonts for this template -->
<link
href="vendor/font-awesome/css/font-awesome.min.css"
rel="stylesheet"
type="text/css"
/>
<link
href="https://fonts.googleapis.com/css?family=Montserrat:400,700"
rel="stylesheet"
type="text/css"
/>
<link
href="https://fonts.googleapis.com/css?family=Kaushan+Script"
rel="stylesheet"
type="text/css"
/>
<link
href="https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic,700italic"
rel="stylesheet"
type="text/css"
/>
<link
href="https://fonts.googleapis.com/css?family=Roboto+Slab:400,100,300,700"
rel="stylesheet"
type="text/css"
/>
<!-- Custom styles for this template -->
<link href="css/agency.css" rel="stylesheet" />
<!-- JQUERY -->
<script src="vendor/jquery/jquery.min.js"></script>
<!-- D3.JS v4 -->
<script src="js/d3.v4.js"></script>
<script src="https://d3js.org/d3-scale-chromatic.v1.min.js"></script>
</head>
<body id="page-top">
<!-- THIS ALLOWS TO INSERT THE MENU THAT IS STORED IN A MENU.HTML FILE-->
<nav class="navbar navbar-expand-lg fixed-top" id="mainNav"></nav>
<script>
$(function () {
$("#mainNav").load("html_chunk/menu.html");
});
</script>
<!-- THIS ALLOWS TO INSERT THE MODAL OF THE MENU THAT IS STORED IN A MENU_MODAL.HTML FILE-->
<div id="modal_menu_insertion"></div>
<script>
$(function () {
$("#modal_menu_insertion").load("html_chunk/menu_modal.html");
});
</script>
<!-- Header -->
<header class="masthead" style="padding-top: 150px; padding-bottom: 80px">
<div class="textlanding">
<h1>Bubble plot</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>
</a>
</li>
<li class="list-inline-item social-buttons">
<a href="https://github.com/holtzy">
<i class="fa fa-github" style="color: white"></i>
</a>
</li>
<li class="list-inline-item social-buttons">
<a href="https://www.linkedin.com/in/yan-holtz-2477534a/">
<i class="fa fa-linkedin"></i>
</a>
</li>
<li class="list-inline-item social-buttons">
<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
<a href="https://www.data-to-viz.com/graph/bubble.html"
>bubble plot</a
>
is a <a href="scatter.html">scatter plot</a> with a third numeric
variable mapped to circle size. This page offers several examples of
implementation with <code>d3.js</code>, from the most basic to custom
versions.
</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 />
<p>
Building a bubble chart basically follows the same process as for a
<a href="scatter.html">scatterplot</a>, except that another scale is
used to map a variable to bubble size. Thus, have a look to the
<a href="scatter.html">scatterplot section</a> for more examples.
</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/bubble_basic.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Most basic</p>
<hr />
<p class="explanation_portfolio">
The most basic bubble plot you can do in d3.js. Keeping only
the core code.<br /><br />Input format: <code>.csv</code>.
</p>
</div>
</div>
<img class="img-fluid" src="img/graph/bubble_basic.png" alt="" />
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/bubble_color.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Colored bubble</p>
<hr />
<p class="explanation_portfolio">
A fourth categoric variable is mapped to the bubbles, giving
a supplementary information.
</p>
</div>
</div>
<img class="img-fluid" src="img/graph/bubble_color.png" alt="" />
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/bubble_tooltip.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Add tooltip</p>
<hr />
<p class="explanation_portfolio">
Add a tooltip to each circle of the chart with a hover
effect. Allows to give detail for each data point.
</p>
</div>
</div>
<img
class="img-fluid"
src="img/graph/bubble_tooltip.png"
alt=""
/>
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/bubble_legend.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Legend</p>
<hr />
<p class="explanation_portfolio">
How to build a nice legend to illustrate bubble size.
</p>
</div>
</div>
<img class="img-fluid" src="img/graph/bubble_legend.png" alt="" />
</a>
</div>
</div>
<br /><br /><br /><br />
<div class="mySeryTitle">Template</div>
<hr />
<p>
Here is the <a href="graph/bubble_template.html">template</a> I use to
start a bubble chart project. Legend describes both size and color.
<u>Hover the legend</u> to highlight the corresponding group.
<u>Hover a bubble</u> to get country name.
</p>
<a
class="btn btn-secondary btn-md text-uppercase"
href="graph/bubble_template.html"
>Get code</a
>
<br />
<center><div id="my_dataviz"></div></center>
<br /><br /><br /><br />
<div class="mySeryTitle">Selection of blocks</div>
<hr />
<p>A selection of blocks involving bubble charts</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a
class="portfolio-link"
href="https://bl.ocks.org/tlfrd/aa1bb8f6f3dae3148345fbb54305bdf7"
>
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Double bubble chart</p>
<hr />
<p class="explanation_portfolio">
Two bubble chart next to each other.<br /><br />Hovering a
bubble on one also highlight the group on the other.
</p>
</div>
</div>
<img
class="img-fluid showBlock"
src="img/block/block_bubbleDouble.png"
alt="double bubble plot"
/>
</a>
</div>
</div>
</div>
</section>
<!-- ======================================================================= -->
<!-- ============================ TEMPLATE ============================ -->
<style>
.bubbles {
stroke-width: 1px;
stroke: black;
opacity: 0.8;
}
.bubbles:hover {
stroke: black;
}
</style>
<script>
// set the dimensions and margins of the graph
var margin = { top: 40, right: 150, bottom: 60, left: 30 },
width = 900 - margin.left - margin.right,
height = 540 - margin.top - margin.bottom;
// append the svg object to the body of the page
var svg = d3
.select("#my_dataviz")
.append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
//Read the data
d3.csv(
"https://raw.githubusercontent.com/holtzy/data_to_viz/master/Example_dataset/4_ThreeNum.csv",
function (data) {
// ---------------------------//
// AXIS AND SCALE //
// ---------------------------//
// Add X axis
var x = d3.scaleLinear().domain([0, 50000]).range([0, width]);
svg
.append("g")
.attr("transform", "translate(0," + (height + 10) + ")")
.call(d3.axisBottom(x).ticks(8));
// Add X axis label:
svg
.append("text")
.attr("text-anchor", "end")
.attr("x", width)
.attr("y", height + 50)
.text("Gdp per Capita");
// Add Y axis
var y = d3.scaleLinear().domain([35, 90]).range([height, 0]);
svg
.append("g")
.attr("transform", "translate(-10,0)")
.call(d3.axisLeft(y));
// Add Y axis label:
svg
.append("text")
.attr("text-anchor", "end")
.attr("x", 0)
.attr("y", -20)
.text("Life expectancy")
.attr("text-anchor", "start");
// Add a scale for bubble size
var z = d3.scaleSqrt().domain([200000, 1310000000]).range([2, 30]);
// Add a scale for bubble color
var myColor = d3
.scaleOrdinal()
.domain(["Asia", "Europe", "Americas", "Africa", "Oceania"])
.range(d3.schemeSet1);
// ---------------------------//
// TOOLTIP //
// ---------------------------//
// -1- Create a tooltip div that is hidden by default:
var tooltip = d3
.select("#my_dataviz")
.style("position", "relative")
.append("div")
.style("opacity", 0)
.attr("class", "tooltip")
.style("background-color", "black")
.style("border-radius", "5px")
.style("padding", "10px")
.style("color", "white")
.style("z-index", "1070")
.style("position", "absolute");
// -2- Create 3 functions to show / update (when mouse move but stay on same circle) / hide the tooltip
var showTooltip = function (d) {
tooltip.html("Country: " + d.country);
tooltip
.transition()
.duration(200)
.style("opacity", 1)
.style("left", d3.event.pageX + 20 + "px")
.style("top", d3.event.pageY - 30 + "px");
};
var moveTooltip = function (d) {
tooltip
.style("left", d3.event.pageX + 20 + "px")
.style("top", d3.event.pageY - 30 + "px");
};
var hideTooltip = function (d) {
tooltip.transition().duration(200).style("opacity", 0);
};
// ---------------------------//
// HIGHLIGHT GROUP //
// ---------------------------//
// What to do when one group is hovered
var highlight = function (d) {
// reduce opacity of all groups
d3.selectAll(".bubbles").style("opacity", 0.05);
// expect the one that is hovered
d3.selectAll("." + d).style("opacity", 1);
};
// And when it is not hovered anymore
var noHighlight = function (d) {
d3.selectAll(".bubbles").style("opacity", 1);
};
// ---------------------------//
// CIRCLES //
// ---------------------------//
// Add dots
svg
.append("g")
.selectAll("dot")
.data(data)
.enter()
.append("circle")
.attr("class", function (d) {
return "bubbles " + d.continent;
})
.attr("cx", function (d) {
return x(d.gdpPercap);
})
.attr("cy", function (d) {
return y(d.lifeExp);
})
.attr("r", function (d) {
return z(d.pop);
})
.style("fill", function (d) {
return myColor(d.continent);
})
// -3- Trigger the functions for hover
.on("mouseover", showTooltip)
.on("mousemove", moveTooltip)
.on("mouseleave", hideTooltip);
// ---------------------------//
// LEGEND //
// ---------------------------//
// Add legend: circles
var valuesToShow = [10000000, 200000000, 1000000000];
var xCircle = 790;
var xLabel = 840;
svg
.selectAll("legend")
.data(valuesToShow)
.enter()
.append("circle")
.attr("cx", xCircle)
.attr("cy", function (d) {
return height - 100 - z(d);
})
.attr("r", function (d) {
return z(d);
})
.style("fill", "none")
.attr("stroke", "black");
// Add legend: segments
svg
.selectAll("legend")
.data(valuesToShow)
.enter()
.append("line")
.attr("x1", function (d) {
return xCircle + z(d);
})
.attr("x2", xLabel)
.attr("y1", function (d) {
return height - 100 - z(d);
})
.attr("y2", function (d) {
return height - 100 - z(d);
})
.attr("stroke", "black")
.style("stroke-dasharray", "2,2");
// Add legend: labels
svg
.selectAll("legend")
.data(valuesToShow)
.enter()
.append("text")
.attr("x", xLabel)
.attr("y", function (d) {
return height - 100 - z(d);
})
.text(function (d) {
return d / 1000000;
})
.style("font-size", 10)
.attr("alignment-baseline", "middle");
// Legend title
svg
.append("text")
.attr("x", xCircle)
.attr("y", height - 100 + 30)
.text("Population (M)")
.attr("text-anchor", "middle");
// Add one dot in the legend for each name.
var size = 20;
var allgroups = ["Asia", "Europe", "Americas", "Africa", "Oceania"];
svg
.selectAll("myrect")
.data(allgroups)
.enter()
.append("circle")
.attr("cx", 790)
.attr("cy", function (d, i) {
return 150 + i * (size + 5);
}) // 100 is where the first dot appears. 25 is the distance between dots
.attr("r", 7)
.style("fill", function (d) {
return myColor(d);
})
.on("mouseover", highlight)
.on("mouseleave", noHighlight);
// Add labels beside legend dots
svg
.selectAll("mylabels")
.data(allgroups)
.enter()
.append("text")
.attr("x", 790 + size * 0.8)
.attr("y", function (d, i) {
return 140 + i * (size + 5) + size / 2;
}) // 100 is where the first dot appears. 25 is the distance between dots
.style("fill", function (d) {
return myColor(d);
})
.text(function (d) {
return d;
})
.attr("text-anchor", "left")
.style("alignment-baseline", "middle")
.on("mouseover", highlight)
.on("mouseleave", noHighlight);
}
);
</script>
<!-- ============================ RELATED SECTION ============================ -->
<section
class="bg-light"
id="portfolio_landing"
style="padding-top: 30px; padding-bottom: 30px"
>
<div class="container">
<p class="mySeryTitle">Related chart types</p>
<hr />
<div class="row">
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="scatter.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<i class="fa fa-plus fa-3x"></i>
</div>
</div>
<img
class="img-fluid"
src="img/section/ScatterPlot150.png"
alt=""
/>
</a>
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