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bubble.html
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<!DOCTYPE html>
<html lang="en">
<head>
<!-- Global site tag (gtag.js) - Google Analytics -->
<!-- Allow Ezoic to place ads on the page -->
<script type="text/javascript">
var ezstandalone = ezstandalone || {};
ezstandalone.cmd = ezstandalone.cmd || [];
ezstandalone.cmd.push(function() {
ezstandalone.define(101,102,103,105);
ezstandalone.enable();
ezstandalone.display();
});
</script>
<script src="//www.ezojs.com/ezoic/sa.min.js"></script>
<script 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>
<!-- Ezoic - under_first_paragraph - under_first_paragraph -->
<div id="ezoic-pub-ad-placeholder-101"> </div>
<!-- End Ezoic - under_first_paragraph - under_first_paragraph -->
<!-- ======================== 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: .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", .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*.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>
<div class="captionPortfolio">Scatter</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="#heatmap">
<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/Heatmap150.png" alt="">
</a>
<div class="captionPortfolio">Heatmap</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="correlogram.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/Correlogram150.png" alt="">
</a>
<div class="captionPortfolio">Correlogram</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="bubble.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/BubblePlot150.png" alt="">
</a>
<div class="captionPortfolio">Bubble</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item ">
<a class="portfolio-link" href="connectedscatter.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/ScatterConnected150.png" alt="">
</a>
<div class="captionPortfolio">Connected scatter</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item show column correlation numonly bigdata">
<a class="portfolio-link" href="density2d.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/2dDensity150.png" alt="">
</a>
<div class="captionPortfolio">Density 2d</div>
</div>
</div>
</div>
</section>
<!-- Ezoic - bottom_of_page - bottom_of_page -->
<div id="ezoic-pub-ad-placeholder-102"> </div>
<!-- End Ezoic - bottom_of_page - bottom_of_page -->
<!-- ============================ CONTACT SECTION ============================ -->
<!-- ANCHOR -->
<a name="contactanchor"></a>
<section id="contact" class="bg" style="background-color: white"></section>
<!-- THIS ALLOWS TO INSERT THE CONTACT CHUNK THAT IS STORED IN A CONTACT.HTML FILE-->
<script>
$(function(){
$("#contact").load("html_chunk/contact.html");
});
</script>
<!-- Ezoic - bottom_of_page - bottom_of_page -->
<div id="ezoic-pub-ad-placeholder-103"> </div>
<!-- End Ezoic - bottom_of_page - bottom_of_page -->
<!-- ============================ FOOTER SECTION ============================ --><footer class="bg-light" id="myFooter"></footer>
<!-- THIS ALLOWS TO INSERT THE FOOTER THAT IS STORED IN A FOOTER.HTML FILE-->
<script>
$(function(){
$("#myFooter").load("html_chunk/footer.html");
});
</script>
<!-- ============================ -->
<!-- =============== JAVASCRIPT SECTION =============== -->
<!-- Bootstrap core JavaScript -->
<script src="vendor/bootstrap/js/bootstrap.bundle.min.js"></script>
<!-- Plugin JavaScript -->
<script src="vendor/jquery-easing/jquery.easing.min.js"></script>
<!-- Custom scripts for this template -->
<script src="js/agency.min.js"></script>
<!--============================== -->
</body>
</html>