Data-driven symbol icons.html

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Data-driven symbol icons - Azure Maps Web SDK Samples</title>

    <meta charset="utf-8" />
    <meta http-equiv="x-ua-compatible" content="IE=Edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
    <meta name="description" content="This sample shows how to use multiple custom icons in a single symbol layer by using data-driven styling with an expression." />
    <meta name="keywords" content="Microsoft maps, map, gis, API, SDK, markers, pins, pushpins, symbols, layer, icon, image, expression" />
    <meta name="author" content="Microsoft Azure Maps" />

    <!-- Add references to the Azure Maps Map control JavaScript and CSS files. -->
    <link rel="stylesheet" href="https://atlas.microsoft.com/sdk/javascript/mapcontrol/2/atlas.min.css" type="text/css" />
    <script src="https://atlas.microsoft.com/sdk/javascript/mapcontrol/2/atlas.min.js"></script>

    <script type='text/javascript'>
        var map, datasource;

        function GetMap() {
            //Point the Azure Maps domain to the US Azure Gov Cloud domain.
			atlas.setDomain('atlas.azure.us');

			//Initialize a map instance.
            map = new atlas.Map('myMap', {
                center: [-73.985708, 40.75773],
                zoom: 9,
                view: 'Auto',

				//Add your Azure Maps subscription key to the map SDK. Get an Azure Maps key at https://azure.com/maps
                authOptions: {
                    authType: 'subscriptionKey',
                    subscriptionKey: '<Your Azure Maps Key>'
                }
            });

            //Wait until the map resources are ready.
            map.events.add('ready', function () {

                //Create a data source and add it to the map.
                datasource = new atlas.source.DataSource();
                map.sources.add(datasource);

                //Load some point data into the data source.
                datasource.importDataFromUrl('../../Common/data/geojson/SamplePoiDataSet.json');

                //Create an array of custom icon promises to load into the map.
                var iconPromises = [
                    map.imageSprite.add('gas_station_icon', '../Common/images/icons/gas_station_pin.png'),
                    map.imageSprite.add('grocery_store_icon', '../Common/images/icons/grocery_cart_pin.png'),
                    map.imageSprite.add('restaurant_icon', '../Common/images/icons/restaurant_pin.png'),
                    map.imageSprite.add('school_icon', '../Common/images/icons/school_pin.png'),
                ];

                //Load all the custom image icons into the map resources.
                Promise.all(iconPromises).then(function () {

                    //Add a layer for rendering point data as symbols.
                    map.layers.add(new atlas.layer.SymbolLayer(datasource, null, {
                        iconOptions: {
                            //Use a match expression to select the image icon based on the EntityType property of the data point.
                            image: [
                                'match',

                                ['get', 'EntityType'],

                                //For each entity type, specify the icon name to use.
                                'Gas Station', 'gas_station_icon',
                                'Grocery Store', 'grocery_store_icon',
                                'Restaurant', 'restaurant_icon',
                                'School', 'school_icon',

                                //Default fallback icon.
                                'marker-blue'
                            ]
                        }
                    }));
                });
            });
        }
    </script>
</head>
<body onload="GetMap()">
    <div id="myMap" style="position:relative;width:100%;min-width:290px;height:600px;"></div>

    <fieldset style="width:calc(100% - 30px);min-width:290px;margin-top:10px;">
        <legend><h1 style="font-size:16px">Data-driven symbol icons</h1></legend>
        This sample shows how to use multiple custom icons in a single symbol layer by using data-driven styling with an expression.
        This sample uses a GeoJSON file that contains points of interest as a data source.
        Each record in this data set has an EntityType property which is one of the following properties:
        'Gas Station', 'Grocery Store', 'Restaurant', 'School'.
        This sample uses the EntityType property to select the icon to display on the map.
    </fieldset>
</body>
</html>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<title>Data-driven symbol icons - Azure Maps Web SDK Samples</title>

	<meta charset="utf-8" />
	<meta http-equiv="x-ua-compatible" content="IE=Edge" />
	<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
	<meta name="description" content="This sample shows how to use multiple custom icons in a single symbol layer by using data-driven styling with an expression." />
	<meta name="keywords" content="Microsoft maps, map, gis, API, SDK, markers, pins, pushpins, symbols, layer, icon, image, expression" />
	<meta name="author" content="Microsoft Azure Maps" />

	<!-- Add references to the Azure Maps Map control JavaScript and CSS files. -->
	<link rel="stylesheet" href="https://atlas.microsoft.com/sdk/javascript/mapcontrol/2/atlas.min.css" type="text/css" />
	<script src="https://atlas.microsoft.com/sdk/javascript/mapcontrol/2/atlas.min.js"></script>

	<script type='text/javascript'>
	var map, datasource;

	function GetMap() {
	//Point the Azure Maps domain to the US Azure Gov Cloud domain.
	atlas.setDomain('atlas.azure.us');

	//Initialize a map instance.
	map = new atlas.Map('myMap', {
	center: [-73.985708, 40.75773],
	zoom: 9,
	view: 'Auto',

	//Add your Azure Maps subscription key to the map SDK. Get an Azure Maps key at https://azure.com/maps
	authOptions: {
	authType: 'subscriptionKey',
	subscriptionKey: '<Your Azure Maps Key>'
	}
	});

	//Wait until the map resources are ready.
	map.events.add('ready', function () {

	//Create a data source and add it to the map.
	datasource = new atlas.source.DataSource();
	map.sources.add(datasource);

	//Load some point data into the data source.
	datasource.importDataFromUrl('../../Common/data/geojson/SamplePoiDataSet.json');

	//Create an array of custom icon promises to load into the map.
	var iconPromises = [
	map.imageSprite.add('gas_station_icon', '../Common/images/icons/gas_station_pin.png'),
	map.imageSprite.add('grocery_store_icon', '../Common/images/icons/grocery_cart_pin.png'),
	map.imageSprite.add('restaurant_icon', '../Common/images/icons/restaurant_pin.png'),
	map.imageSprite.add('school_icon', '../Common/images/icons/school_pin.png'),
	];

	//Load all the custom image icons into the map resources.
	Promise.all(iconPromises).then(function () {

	//Add a layer for rendering point data as symbols.
	map.layers.add(new atlas.layer.SymbolLayer(datasource, null, {
	iconOptions: {
	//Use a match expression to select the image icon based on the EntityType property of the data point.
	image: [
	'match',

	['get', 'EntityType'],

	//For each entity type, specify the icon name to use.
	'Gas Station', 'gas_station_icon',
	'Grocery Store', 'grocery_store_icon',
	'Restaurant', 'restaurant_icon',
	'School', 'school_icon',

	//Default fallback icon.
	'marker-blue'
	]
	}
	}));
	});
	});
	}
	</script>
	</head>
	<body onload="GetMap()">
	<div id="myMap" style="position:relative;width:100%;min-width:290px;height:600px;"></div>

	<fieldset style="width:calc(100% - 30px);min-width:290px;margin-top:10px;">
	<legend><h1 style="font-size:16px">Data-driven symbol icons</h1></legend>
	This sample shows how to use multiple custom icons in a single symbol layer by using data-driven styling with an expression.
	This sample uses a GeoJSON file that contains points of interest as a data source.
	Each record in this data set has an EntityType property which is one of the following properties:
	'Gas Station', 'Grocery Store', 'Restaurant', 'School'.
	This sample uses the EntityType property to select the icon to display on the map.
	</fieldset>
	</body>
	</html>