clhenrick/README.md

## README.md

      
    Raw
  

              README.md
            
          
    Data URI SVG icons with Leaflet

Demonstrates how to load SVG's as Leaflet icons via the data URI method.
Following was helpful to figure this out:

Optimizing SVGs in Data URIs
http://codepen.io/gabrien/pen/NqGvGq
http://codepen.io/chriscoyier/pen/ZQgvyG/

This block is a modified example taken from Working with spatial data.
Built with blockbuilder.org
forked from enjalot's block: WWSD #1: Leaflet starter
forked from enjalot's block: WWSD #1: Leaflet starter

  
## index.html
<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
  <link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet/v0.7.7/leaflet.css" />
   <script src="http://cdn.leafletjs.com/leaflet/v0.7.7/leaflet.js"></script>

  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    #map {
      height: 100%;
    }
  </style>
</head>

<body>
  <div id="map"></div>
  <script>
    var map = L.map('map').setView([30, 0], 2);

    L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
        attribution: '&copy; <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
    }).addTo(map);

    var CustomIcon = L.Icon.extend({
			options: {
				iconSize:     [40, 40],
				shadowSize:   [50, 64],
				iconAnchor:   [22, 94],
				shadowAnchor: [4, 62],
				popupAnchor:  [-3, -76]
			}
		});

    var svgrect = "<svg xmlns='http://www.w3.org/2000/svg'><rect x='0' y='0' width='20' height='10' fill='#5a7cd2'></rect><rect x='0' y='15' width='20' height='10' fill='#5d52cf'></rect></svg>";

		/*
    For data URI SVG support in Firefox & IE it's necessary to URI encode the string
    & replace the '#' character with '%23'. `encodeURI()` won't do this which is
    why `replace()` must be used on the string afterwards.
    */
    var url = encodeURI("data:image/svg+xml," + svgrect).replace('#','%23');
    console.log(url);

    var rectIcon = new CustomIcon({iconUrl: url})

    L.marker([52, -0.09], {icon: rectIcon}).bindPopup("I am data URI SVG icon.").addTo(map);


  </script>
</body>
	<!DOCTYPE html>
	<head>
	<meta charset="utf-8">
	<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
	<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet/v0.7.7/leaflet.css" />
	<script src="http://cdn.leafletjs.com/leaflet/v0.7.7/leaflet.js"></script>

	<style>
	body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
	#map {
	height: 100%;
	}
	</style>
	</head>

	<body>
	<div id="map"></div>
	<script>
	var map = L.map('map').setView([30, 0], 2);

	L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
	attribution: '© <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
	}).addTo(map);

	var CustomIcon = L.Icon.extend({
	options: {
	iconSize: [40, 40],
	shadowSize: [50, 64],
	iconAnchor: [22, 94],
	shadowAnchor: [4, 62],
	popupAnchor: [-3, -76]
	}
	});

	var svgrect = "<svg xmlns='http://www.w3.org/2000/svg'><rect x='0' y='0' width='20' height='10' fill='#5a7cd2'></rect><rect x='0' y='15' width='20' height='10' fill='#5d52cf'></rect></svg>";

	/*
	For data URI SVG support in Firefox & IE it's necessary to URI encode the string
	& replace the '#' character with '%23'. `encodeURI()` won't do this which is
	why `replace()` must be used on the string afterwards.
	*/
	var url = encodeURI("data:image/svg+xml," + svgrect).replace('#','%23');
	console.log(url);

	var rectIcon = new CustomIcon({iconUrl: url})

	L.marker([52, -0.09], {icon: rectIcon}).bindPopup("I am data URI SVG icon.").addTo(map);



	</script>
	</body>