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bubblemap.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 map | 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 a map with markers on top 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,area chart">
<meta name="author" content="Yan Holtz">
<link rel="icon" href="img/logo/D3_single_small.png">
<meta property="og:title" content="Bubble map | the D3 Graph Gallery">
<meta property="og:image" content="img/overview_RGG.png">
<meta property="og:description" content="How to build a map with markers on top 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>
<script src="https://d3js.org/d3-geo-projection.v2.min.js"></script>
<!-- JQUERY -->
</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 map</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">This section is dedicated to map with <u>markers</u> displayed on top of it. These markers can be circles with size proportional to a numerical value: that makes a <a href="https://www.data-to-viz.com/graph/bubblemap.html">bubble map</a>. Before exploring this section, learn how to build the <a href="backgroundmap.html">map background</a> with javascript.</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">From a <code>geoJson</code> file</div>
<hr>
<p>Input data for maps is <code>geoJson</code> format. D3.js works very well to display this kind of information using <code>path</code>.</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/bubblemap_basic.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Most basic</p>
<hr>
<p class="explanation_portfolio">The most basic bubble map you can do in d3.js. Keeping only the core code.<br><br>Input data format: geoJson + javascript object</p>
</div>
</div>
<img class="img-fluid" src="img/graph/bubblemap_basic.png" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/bubblemap_tooltip.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Add tooltip</p>
<hr>
<p class="explanation_portfolio">Pretty useful to add a tooltip to add more information concerning the marker.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/bubblemap_tooltip.gif" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/bubblemap_circleFeatures.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Circle features</p>
<hr>
<p class="explanation_portfolio">How to map circle size and color to data?</p>
</div>
</div>
<img class="img-fluid" src="img/graph/bubblemap_circleFeatures.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 class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/bubblemap_buttonControl.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Group selection</p>
<hr>
<p class="explanation_portfolio">Add a button to select displayed group, with smooth transition.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/bubblemap_buttonControl.gif" alt="">
</a>
</div>
</div>
<br><br><br><br>
<div class="mySeryTitle">Template</div>
<hr>
<p>A clean template based on my <a href="https://www.data-to-viz.com/story/GPSCoordWithoutValue.html">#surf project</a>. I harvested tweet containing the <u>#surf</u> hashtag for ~ 1 year and geocoded people home location. Here is where the surfers live! You can read more about this project <a href="https://www.data-to-viz.com/story/GPSCoordWithoutValue.html">here</a>.</p>
<a class="btn btn-secondary btn-md text-uppercase" href="graph/bubblemap_template.html">See code</a>
<center><svg id="my_dataviz" width="1200" height="490"></svg></center>
<br><br><br><br><br><br>
<div class="mySeryTitle">Using the <code>Leaflet.js</code> open source library</div>
<hr>
<p><a href="https://leafletjs.com/examples.html">Leaflet</a> is an open-source JavaScript library for mobile-friendly interactive maps. Awesome for background maps. See the range of background tiles you can use <a href="https://leaflet-extras.github.io/leaflet-providers/preview/">here</a> and <a href="https://wiki.openstreetmap.org/wiki/Tiles">here</a>.</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/bubblemap_leaflet_basic.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Basic bubblemap with leaflet</p>
<hr>
<p class="explanation_portfolio">A very basic example showing how to add circles with d3 on top of the leaflet.js background.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/bubblemap_leaflet_basic.png" alt="">
</a>
</div>
</div>
<br><br><br><br>
<div class="mySeryTitle">Selection of blocks</div>
<hr>
<p>A few blocks with more complicated codes to showcase the possibility of the <code>d3-sankey </code>plugin</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="https://bost.ocks.org/mike/bubble-map/">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Mike's tutorial on bubble map</p>
<hr>
<p class="explanation_portfolio">A complete tutorial on bubble map by Mike Bostock, d3.js creator.</p>
</div>
</div>
<img class="img-fluid showBlock" src="img/block/block_bubblemapMike.png" alt="All d3 map projection">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="https://leafletjs.com">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Leaflet documentation</p>
<hr>
<p class="explanation_portfolio">Link to the leaflet website: awesome doc for awesome maps.</p>
</div>
</div>
<img class="img-fluid showBlock" src="img/block/block_backgroundmapLeaflet.png" alt="circular barchart">
</a>
</div>
</div>
</div>
</section>
<!-- ======================================================================= -->
<!-- ============================ Script template bubble map ============================ -->
<script>
// The svg
var svg = d3.select("svg"),
width = +svg.attr("width"),
height = +svg.attr("height");
// Map and projection
var projection = d3.geoMercator()
.center([0,20]) // GPS of location to zoom on
.scale(160) // This is like the zoom
.translate([ width/2, height/2 ])
d3.queue()
.defer(d3.json, "https://raw.githubusercontent.com/holtzy/D3-graph-gallery/master/DATA/world.geojson") // World shape
.defer(d3.csv, "https://raw.githubusercontent.com/holtzy/D3-graph-gallery/master/DATA/data_gpsLocSurfer.csv") // Position of circles
.await(ready);
function ready(error, dataGeo, data) {
// Create a color scale
var allContinent = d3.map(data, function(d){return(d.homecontinent)}).keys()
var color = d3.scaleOrdinal()
.domain(allContinent)
.range(d3.schemePaired);
// Add a scale for bubble size
var valueExtent = d3.extent(data, function(d) { return +d.n; })
var size = d3.scaleSqrt()
.domain(valueExtent) // What's in the data
.range([ 1, 80]) // Size in pixel
// Draw the map
svg.append("g")
.selectAll("path")
.data(dataGeo.features)
.enter()
.append("path")
.attr("fill", "#b8b8b8")
.attr("d", d3.geoPath()
.projection(projection)
)
.style("stroke", "none")
.style("opacity", .3)
// Add circles:
svg
.selectAll("myCircles")
.data(data.sort(function(a,b) { return +b.n - +a.n }).filter(function(d,i){ return i<1000 }))
.enter()
.append("circle")
.attr("cx", function(d){ return projection([+d.homelon, +d.homelat])[0] })
.attr("cy", function(d){ return projection([+d.homelon, +d.homelat])[1] })
.attr("r", function(d){ return size(+d.n) })
.style("fill", function(d){ return color(d.homecontinent) })
.attr("stroke", function(d){ if(d.n>2000){return "white"}else{return "none"} })
.attr("stroke-width", 1)
.attr("fill-opacity", .4)
// Add title and explanation
svg
.append("text")
.attr("text-anchor", "end")
.style("fill", "black")
.attr("x", width - 130)
.attr("y", 30)
.attr("width", 90)
.html("WHERE SURFERS LIVE")
.style("font-size", 18)
// Add title and explanation
svg
.append("text")
.attr("text-anchor", "end")
.style("fill", "black")
.attr("x", width - 130)
.attr("y", 55)
.attr("width", 90)
.html("Number of #surf tweet harvested in a year")
.style("font-size", 13)
// --------------- //
// ADD LEGEND //
// --------------- //
// Add legend: circles
var valuesToShow = [100,5000,20000]
var xCircle = 120
var xLabel = 200
svg
.selectAll("legend")
.data(valuesToShow)
.enter()
.append("circle")
.attr("cx", xCircle)
.attr("cy", function(d){ return height - size(d) } )
.attr("r", function(d){ return size(d) })
.style("fill", "none")
.attr("stroke", "black")
// Add legend: segments
svg
.selectAll("legend")
.data(valuesToShow)
.enter()
.append("line")
.attr('x1', function(d){ return xCircle + size(d) } )
.attr('x2', xLabel)
.attr('y1', function(d){ return height - size(d) } )
.attr('y2', function(d){ return height - size(d) } )
.attr('stroke', 'black')
.style('stroke-dasharray', ('2,2'))
// Add legend: labels
svg
.selectAll("legend")
.data(valuesToShow)
.enter()
.append("text")
.attr('x', xLabel+3)
.attr('y', function(d){ return height - size(d) } )
.text( function(d){ return d } )
.style("font-size", 11)
.attr('alignment-baseline', 'middle')
}
</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="backgroundmap.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/Map150.png" alt="">
</a>
<div class="captionPortfolio">Map</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="choropleth.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/Choropleth150.png" alt="">
</a>
<div class="captionPortfolio">Choropleth</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="hexbinmap.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/MapHexbin150.png" alt="">
</a>
<div class="captionPortfolio">Hexbin map</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="cartogram.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/Cartogram150.png" alt="">
</a>
<div class="captionPortfolio">Cartogram</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="connectionmap.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/ConnectedMap150.png" alt="">
</a>
<div class="captionPortfolio">Connection</div>
</div>
<div class="col-md-2 col-sm-4 portfolio-item">
<a class="portfolio-link" href="bubblemap.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/BubbleMap150.png" alt="">
</a>
<div class="captionPortfolio">Bubble map</div>
</div>
</div>
</div>
</section>
<!-- Ezoic - bottom_of_page - bottom_of_page -->
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<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>
<!-- Contact form JavaScript -->
<script src="js/jqBootstrapValidation.js"></script>
<script src="js/contact_me.js"></script>
<!-- Custom scripts for this template -->
<script src="js/agency.min.js"></script>
<!-- Activate the bootstrap tooltip, must be after jQuery load -->
<script>
$(function () {
$('[data-toggle="tooltip"]').tooltip()
})
</script>
<!--============================== -->
</body>
</html>