Add custom icon template to atlas namespace.html

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Add custom icon template to atlas namespace - Azure Maps Web SDK Samples</title>

    <meta charset="utf-8" />
	<link rel="shortcut icon" href="/favicon.ico"/>
    
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
    <meta name="description" content="This sample shows how to add more image templates to the atlas namespace." />
    <meta name="keywords" content="Microsoft maps, map, gis, API, SDK, image template, symbology, symbols" />
    <meta name="author" content="Microsoft Azure Maps" /><meta name="version" content="1.0" />
    <meta name="screenshot" content="screenshot.jpg" />

    <!-- Add references to the Azure Maps Map control JavaScript and CSS files. -->
    <link href="https://atlas.microsoft.com/sdk/javascript/mapcontrol/3/atlas.min.css" rel="stylesheet" />
    <script src="https://atlas.microsoft.com/sdk/javascript/mapcontrol/3/atlas.min.js"></script>

    <script>
        var map;

        //A custom icon template created using an inline SVG string with placeholders for {scale}, {color}, and {secondaryColor}.
        var customTemplate = '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 80 80" width="calc(80px * {scale})" height="calc(80px * {scale})"><rect x="0" y="0" width="80" height="80" fill="{secondaryColor}"/><path fill="{color}" d="M14 16H9v-2h5V9.87a4 4 0 1 1 2 0V14h5v2h-5v15.95A10 10 0 0 0 23.66 27l-3.46-2 8.2-2.2-2.9 5a12 12 0 0 1-21 0l-2.89-5 8.2 2.2-3.47 2A10 10 0 0 0 14 31.95V16zm40 40h-5v-2h5v-4.13a4 4 0 1 1 2 0V54h5v2h-5v15.95A10 10 0 0 0 63.66 67l-3.47-2 8.2-2.2-2.88 5a12 12 0 0 1-21.02 0l-2.88-5 8.2 2.2-3.47 2A10 10 0 0 0 54 71.95V56zm-39 6a2 2 0 1 1 0-4 2 2 0 0 1 0 4zm40-40a2 2 0 1 1 0-4 2 2 0 0 1 0 4zM15 8a2 2 0 1 0 0-4 2 2 0 0 0 0 4zm40 40a2 2 0 1 0 0-4 2 2 0 0 0 0 4z"></path></svg>';

        function getMap() {
            //Initialize a map instance.
            map = new atlas.Map('myMap', {
                zoom: 2,
                view: 'Auto',
                language: 'Auto',

                //Add authentication details for connecting to Azure Maps.
                authOptions: {
                    // Use SAS token for authentication 
                    authType: 'sas',
                    getToken: function (resolve, reject, map) {
                        // URL to your authentication service that retrieves a SAS Token
                        var tokenServiceUrl = 'https://samples.azuremaps.com/api/GetAzureMapsSasToken';

                        fetch(tokenServiceUrl).then(r => r.text()).then(token => resolve(token));
                    }

                    //Alternatively, use an Azure Maps key. Get an Azure Maps key at https://azure.com/maps. NOTE: The primary key should be used as the key.
                    //authType: 'subscriptionKey',
                    //subscriptionKey: '[YOUR_AZURE_MAPS_KEY]'
                }
            });

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

                //Add a custom template to atlas namespace.
                atlas.addImageTemplate('anchor-fill', customTemplate);

                //Load the custom template into the map resources.
                map.imageSprite.createFromTemplate('myTemplatedIcon', 'anchor-fill', 'navy', 'rgba(0,150,150,0.5)').then(function () {

                    datasource = new atlas.source.DataSource();
                    map.sources.add(datasource);

                    //Add polygon to data source.
                    datasource.add(new atlas.data.Polygon([[[-50, -20], [0, 40], [50, -20], [-50, -20]]]));

                    //Create a layer to render the polygon data and add it to the map, below the labels.
                    map.layers.add(new atlas.layer.PolygonLayer(datasource, null, {

                        //Add the fill pattern image to the layer.
                        fillPattern: 'myTemplatedIcon',

                        fillOpacity: 1
                    }));
                });
            });
        }
    </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>Add custom icon template to atlas namespace</legend>
        This sample shows how to add more image templates to the atlas namespace. This is useful for scenarios where you want to make additional templates available from a module.
    </fieldset>
</body>
</html>