AzureMapsCodeSamples/Samples/Popups/Popups with leader lines/Popups with leader lines.html at main · Azure-Samples/AzureMapsCodeSamples · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <title>Popups with leader lines - 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 events to Popups." />
    <meta name="keywords" content="Microsoft maps, map, gis, API, SDK, popups, infobox, infowindow, events, mouse" />
    <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, popup, events = ['drag', 'dragstart', 'dragend', 'open', 'close'];

        function getMap() {
            //Initialize a map instance.
            map = new atlas.Map('myMap', {

                //Only render one copy of the world. Lines are replecated multiple times when there is more than one copy of the world, but popups aren't.
                renderWorldCopies: false,

                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 () {

                //Create a data source and add it to the map.
                datasource = new atlas.source.DataSource(null, {
                    lineMetrics: true   //Enable line metrics on the data source. This is needed to enable support for strokeGradient.
                });
                map.sources.add(datasource);

                //Create a line layer to render the leader line.
                map.layers.add(new atlas.layer.LineLayer(datasource));

                //Create 5 popups in random positions.
                for (var i = 0; i < 5; i++) {

                    //Create a random position.
                    var position = [
                        Math.random() * 380 - 180,
                        Math.random() * 170 - 85
                    ];

                    //Create a popup and add to the map.
                    popup = new atlas.Popup({
                        content: '<div style="padding:10px;">Drag me</div>',
                        position: position,
                        closeButton: false, //Optional.
                        draggable: true
                    });

                    //Create a leader line for the popup.
                    createLeaderLine(popup);

                    //Open the popup.
                    popup.open(map);
                }
            });
        }

        function createLeaderLine(popup) {
            //Get the position of the popup.
            var position = popup.getOptions().position;

            //Create a line that connects the position to the popup. Wrap it with the Shape class to make it easy to update.
            var leaderLine = new atlas.Shape(new atlas.data.LineString([position, position]));

            //Add the line to the data source.
            datasource.add(leaderLine);

            //Add the line to a custom property of the popup so we can easily retrieve it later.
            popup.leaderLine = leaderLine;

            //Add a drag event to the popup to monitor its movement.
            map.events.add('drag', popup, popupDragged);
        }

        function updateLeaderLine(popup) {
            //Get the leader line coordinates, and update the second coordinate with the position of the popup.
            var c = popup.leaderLine.getCoordinates();
            c[1] = popup.getOptions().position;
            popup.leaderLine.setCoordinates(c);
        }

        function popupDragged(e) {
            if (e.target.leaderLine) {
                updateLeaderLine(e.target);
            }
        }
    </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>Popups with leader lines</legend>
        This sample shows how to create a leader line that connects a position to a popup.
        This allows the popup to be moved anywhere on the map but still be connected to its main position.
    </fieldset>
</body>
</html>