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backgroundmap.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 || [];
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ezstandalone.define(101,102,103,105);
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gtag('js', new Date());
gtag('config', 'UA-79254642-6');
</script>
<meta charset="utf-8">
<title>Background 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 the background of a map 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="Area Chart | the D3 Graph Gallery">
<meta property="og:image" content="img/overview_RGG.png">
<meta property="og:description" content="How to build the background of a map 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 -->
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<!-- JQUERY -->
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</head>
<body id="page-top">
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<nav class="navbar navbar-expand-lg fixed-top" id="mainNav"></nav>
<script>
$(function(){
$("#mainNav").load("html_chunk/menu.html");
});
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<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>Background 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 is the <a href="https://www.data-to-viz.com/graph/map.html">background map</a> section of the gallery. If you want to know more about this kind of chart, visit <a href="https://www.data-to-viz.com/graph/map.html">data-to-viz.com</a>. If you're looking for a simple way to implement it in d3.js, pick an example below.</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">About input data</div>
<hr>
<p>Difference between <code>geoJson</code> and <code>topoJson</code>. But not necessary thanks to leaflet.</p>
<br><br><br><br>
<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/backgroundmap_basic.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Most basic</p>
<hr>
<p class="explanation_portfolio">The most basic background map you can do in d3.js. Keeping only the core code.<br><br>Input data format: geoJson</p>
</div>
</div>
<img class="img-fluid" src="img/graph/backgroundmap_basic.png" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/backgroundmap_changeprojection.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Change projection</p>
<hr>
<p class="explanation_portfolio">Shows how to switch from one projection to another thanks to the geo-projection plugin.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/backgroundmap_changeprojection.png" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/backgroundmap_country.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Single country</p>
<hr>
<p class="explanation_portfolio">How to plot the boundaries of any country in d3.js.<br><br>Actually explains how to filter a geoJson file.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/backgroundmap_country.png" alt="">
</a>
</div>
</div>
<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/backgroundmap_leaflet.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Most basic leaflet</p>
<hr>
<p class="explanation_portfolio">A very basic example showing how to build a leaflet map.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/backgroundmap_leaflet.png" alt="">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/backgroundmap_leaflet_buttonLayer.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Button to control tile</p>
<hr>
<p class="explanation_portfolio">Add a button that allows to select different background tiles.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/backgroundmap_leaflet_buttonLayer.gif" alt="">
</a>
</div>
</div>
<br><br><br><br>
<div class="mySeryTitle">Using <code>Canvas</code></div>
<hr>
<p>Canvas is an alternative to SVG. Its main advantage is that it avoids to overload the dom and thus often leads to better browser performance. Here are examples showing how to build background maps using d3.js and canvas:</p>
<div id="portfolio-items" class="row">
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="graph/backgroundmap_canvas_basic.html">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Most basic map with canvas</p>
<hr>
<p class="explanation_portfolio">A very basic example showing how to build a map using d3.js and canvas.</p>
</div>
</div>
<img class="img-fluid" src="img/graph/backgroundmap_canvas_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://medium.com/@mbostock/command-line-cartography-part-1-897aa8f8ca2c">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Mike's tutorial</p>
<hr>
<p class="explanation_portfolio">A tutorial built by Mike Bostock: a very good starting point to maps in d3.js.</p>
</div>
</div>
<img class="img-fluid showBlock" src="img/block/block_backgroundmapMike.png" alt="Mike's map tutorial">
</a>
</div>
<div class="col-md-4 col-sm-6 portfolio-item">
<a class="portfolio-link" href="https://bl.ocks.org/alexmacy/6700d44240d2b6d3ec9767a5a5854e42">
<div class="portfolio-hover">
<div class="portfolio-hover-content">
<p>Demo of all projections</p>
<hr>
<p class="explanation_portfolio">A block showcasing all the different available projection, with smooth transitions.</p>
</div>
</div>
<img class="img-fluid showBlock" src="img/graph/block_projection_demo.gif" 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>
<!-- ======================================================================= -->
<!-- ============================ 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>
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