AzureMapsCodeSamples/Samples/Polygons/Make a geometry easy to update/Make a geometry easy to update.html at main · Azure-Samples/AzureMapsCodeSamples · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <title>Make a geometry easy to update - Azure Maps Web SDK Samples</title>

    <meta charset="utf-8" />

    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
    <meta name="description" content="This sample shows how to wrap a circle GeoJSON object with a shape class. As the value of the radius changes in the shape, the circle renders automatically on the map." />
    <meta name="keywords" content="Microsoft maps, maps, map, API, SDK, GIS, bivariate, data binning, data bin, gridding, hexbins, hexgrid, hexagon bins, tessellations" />
    <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>

    <style>
        #radius {
            position: absolute;
            width: auto;
            height: auto;
            top: 15px;
            left: 15px;
            background-color: white;
            padding: 5px;
            border-radius: 10px;
        }

        #text {
            position: relative;
            margin: 0 auto;
            padding: 3px;
            top: -6px;
            right: -5px;
            float: right;
        }

        input[type="range"] {
            position: relative;
            margin: 0 auto;
            float: left;
        }
    </style>

</head>
<body>
    <div id="myMap" style="position:relative;width:100%;min-width:290px;height:600px;"></div>

    <div id="radius">
        <div>Circle radius:</div>
        <input align="center" type='range' min='1000' max='5000' value='1000' id='slider' onInput="getRadius()"></input>
        <p id='text' style="font-family:Segoe UI"></p>
    </div>

    <fieldset style="width:calc(100% - 30px);min-width:290px;margin-top:10px;">
        <legend>Make a geometry easy to update</legend>
        This sample shows how to wrap a circle GeoJSON object with a shape class. As the value of the radius changes in the shape, the circle renders automatically on the map.
    </fieldset>

    <script>
        //Initialize a map instance.
        var map = new atlas.Map("myMap", {
            center: [-73.985708, 40.75773],
            zoom: 11,
            view: "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));
                }

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

        //Set the initial radius value.
        document.getElementById("text").innerHTML = 1000;

        //Create a circle from a Point Feature and wrap it with the Shape class.
        var point = new atlas.Shape(new atlas.data.Point([-73.985708, 40.75773]), null, {
            subType: "Circle",
            radius: 1000
        });

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

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

            //Add circle to the datasource.
            dataSource.add(point);

            //Create a polygon layer to render the filled in area of the circle polygon, and add it to the map.
            map.layers.add(new atlas.layer.PolygonLayer(dataSource, null, {
                fillColor: 'red',
                fillOpacity: 0.5
            }));
        });

        //Get radius value from the slider.
        function getRadius() {
            rad = parseInt(slider.value);
            point.addProperty("radius", rad);
            document.getElementById("text").innerHTML = rad;
        }
    </script>
</body>
</html>