Filter Symbols by Property.html

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Filter Symbols by Property - 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 filter symbols on the map by property by creating a layer fro each property value and then toggling the visibility of that layer accordingly. " />
    <meta name="keywords" content="Microsoft maps, map, gis, API, SDK, symbols, markers, pins, pushpins, styling, style, layer" />
    <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, client, datasource;
        var categories = ['bar', 'coffee', 'restaurant'];

        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: [-122.338124, 47.6078],
                zoom: 16,
                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);

                //Add a data set to the data source.
                datasource.add([
                    new atlas.data.Feature(new atlas.data.Point([-122.338913, 47.607471]), { category: 'bar' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.341187, 47.608192]), { category: 'bar' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.335014, 47.607960]), { category: 'bar' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.337555, 47.608620]), { category: 'bar' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.338524, 47.606907]), { category: 'coffee' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.336655, 47.606251]), { category: 'coffee' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.336182, 47.607185]), { category: 'coffee' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.337784, 47.607784]), { category: 'coffee' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.338455, 47.606880]), { category: 'restaurant' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.336823, 47.607239]), { category: 'restaurant' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.339027, 47.608040]), { category: 'restaurant' }),
                    new atlas.data.Feature(new atlas.data.Point([-122.335892, 47.607594]), { category: 'restaurant' })
                ]);

                //Create a symbol layer for each category.
                categories.forEach(function (category) {
                    //Create a symbol layer for the category. Give each layer an id so we can easily retrieve it later.
                    map.layers.add(new atlas.layer.SymbolLayer(datasource, category, {
                        iconOptions: {
                            //The map control has built in icons for bar, coffee and restaurant that we can use.
                            image: category,
                            anchor: 'center',
                            allowOverlap: true
                        },

                        //Create a filter which will only render points for the specified category in this layer.
                        filter: ['==', ['get', 'category'], category]
                    }));
                });
            });
        }

        function filterSymbols(elm, category) {
            //Retrieve the layer from the map by id.
            var layer = map.layers.getLayerById(category);

            //Set the visibility of the layer.
            if (elm.checked) {
                layer.setOptions({
                    visible: true
                });
            } else {
                layer.setOptions({
                    visible: false
                });
            }
        }
    </script>
</head>
<body onload="GetMap()">
    <div id="myMap" style="position:relative;width:100%;min-width:290px;height:600px;"></div>

    <div style="position:absolute;top:15px;left:15px;background-color:white;padding:10px;border-radius:10px;">
        <input type="checkbox" checked="checked" onclick="filterSymbols(this, 'bar')" /> Bar<br />
        <input type="checkbox" checked="checked" onclick="filterSymbols(this, 'coffee')" /> Coffee<br />
        <input type="checkbox" checked="checked" onclick="filterSymbols(this, 'restaurant')" /> Restaurant
    </div>

    <fieldset style="width:calc(100% - 30px);min-width:290px;margin-top:10px;">
        <legend><h1 style="font-size:16px">Filter Points by Symbols</h1></legend>
        This sample shows how to filter symbols on the map by property by creating a layer fro each property value and then toggling the visibility of that layer accordingly.
    </fieldset>
</body>
</html>
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<title>Filter Symbols by Property - 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 filter symbols on the map by property by creating a layer fro each property value and then toggling the visibility of that layer accordingly. " />
	<meta name="keywords" content="Microsoft maps, map, gis, API, SDK, symbols, markers, pins, pushpins, styling, style, layer" />
	<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, client, datasource;
	var categories = ['bar', 'coffee', 'restaurant'];

	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: [-122.338124, 47.6078],
	zoom: 16,
	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);

	//Add a data set to the data source.
	datasource.add([
	new atlas.data.Feature(new atlas.data.Point([-122.338913, 47.607471]), { category: 'bar' }),
	new atlas.data.Feature(new atlas.data.Point([-122.341187, 47.608192]), { category: 'bar' }),
	new atlas.data.Feature(new atlas.data.Point([-122.335014, 47.607960]), { category: 'bar' }),
	new atlas.data.Feature(new atlas.data.Point([-122.337555, 47.608620]), { category: 'bar' }),
	new atlas.data.Feature(new atlas.data.Point([-122.338524, 47.606907]), { category: 'coffee' }),
	new atlas.data.Feature(new atlas.data.Point([-122.336655, 47.606251]), { category: 'coffee' }),
	new atlas.data.Feature(new atlas.data.Point([-122.336182, 47.607185]), { category: 'coffee' }),
	new atlas.data.Feature(new atlas.data.Point([-122.337784, 47.607784]), { category: 'coffee' }),
	new atlas.data.Feature(new atlas.data.Point([-122.338455, 47.606880]), { category: 'restaurant' }),
	new atlas.data.Feature(new atlas.data.Point([-122.336823, 47.607239]), { category: 'restaurant' }),
	new atlas.data.Feature(new atlas.data.Point([-122.339027, 47.608040]), { category: 'restaurant' }),
	new atlas.data.Feature(new atlas.data.Point([-122.335892, 47.607594]), { category: 'restaurant' })
	]);

	//Create a symbol layer for each category.
	categories.forEach(function (category) {
	//Create a symbol layer for the category. Give each layer an id so we can easily retrieve it later.
	map.layers.add(new atlas.layer.SymbolLayer(datasource, category, {
	iconOptions: {
	//The map control has built in icons for bar, coffee and restaurant that we can use.
	image: category,
	anchor: 'center',
	allowOverlap: true
	},

	//Create a filter which will only render points for the specified category in this layer.
	filter: ['==', ['get', 'category'], category]
	}));
	});
	});
	}

	function filterSymbols(elm, category) {
	//Retrieve the layer from the map by id.
	var layer = map.layers.getLayerById(category);

	//Set the visibility of the layer.
	if (elm.checked) {
	layer.setOptions({
	visible: true
	});
	} else {
	layer.setOptions({
	visible: false
	});
	}
	}
	</script>
	</head>
	<body onload="GetMap()">
	<div id="myMap" style="position:relative;width:100%;min-width:290px;height:600px;"></div>

	<div style="position:absolute;top:15px;left:15px;background-color:white;padding:10px;border-radius:10px;">
	<input type="checkbox" checked="checked" onclick="filterSymbols(this, 'bar')" /> Bar<br />
	<input type="checkbox" checked="checked" onclick="filterSymbols(this, 'coffee')" /> Coffee<br />
	<input type="checkbox" checked="checked" onclick="filterSymbols(this, 'restaurant')" /> Restaurant
	</div>

	<fieldset style="width:calc(100% - 30px);min-width:290px;margin-top:10px;">
	<legend><h1 style="font-size:16px">Filter Points by Symbols</h1></legend>
	This sample shows how to filter symbols on the map by property by creating a layer fro each property value and then toggling the visibility of that layer accordingly.
	</fieldset>
	</body>
	</html>