AzureMapsCodeSamples/Samples/Drawing Tools Module/Create a measuring tool/Create a measuring tool.html at main · Azure-Samples/AzureMapsCodeSamples · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <title>Create a measuring tool - 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 use the drawing tools to measure distances and areas. " />
    <meta name="keywords" content="Microsoft maps, map, gis, API, SDK, drawing tools, circle, rectangle, polygon, paint, events, measuring tape, measure" />
    <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>

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

    <script>
        var map, datasource, drawingManager;

        function getMap() {
            //Initialize a map instance.
            map = new atlas.Map('myMap', {
                center: [-90, 35],
                zoom: 3,
                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 an instance of the drawing manager and display the drawing toolbar.
                drawingManager = new atlas.drawing.DrawingManager(map, {
                    toolbar: new atlas.control.DrawingToolbar({
                        buttons: ['draw-line', 'draw-polygon', 'draw-rectangle', 'draw-circle', 'edit-geometry'],
                        position: 'top-right',
                        style: 'light'
                    })
                });

                //Clear the map and drawing canvas when the user enters into a drawing mode.
                map.events.add('drawingmodechanged', drawingManager, drawingModeChanged);

                //Monitor for when a polygon drawing has been completed.
                map.events.add('drawingchanging', drawingManager, measureShape);    //Fires when in shape preview is shown.
                map.events.add('drawingchanged', drawingManager, measureShape);     //Fires when the shape has changed.
                map.events.add('drawingcomplete', drawingManager, drawingComplete); //Fires when drawing is completed.
            });
        }

        function drawingModeChanged(mode) {
            //Clear the drawing canvas when the user enters into a drawing mode.
            if (mode.startsWith('draw')) {
                drawingManager.getSource().clear();
                document.getElementById('measurementInfo').innerHTML = '';
            }
        }

        function drawingComplete(shape) {
            //Exit drawing mode.
            drawingManager.setOptions({ mode: 'idle' });

            measureShape(shape);
        }

        function measureShape(shape) {
            var msg = '';

            //If the search area is a circle, create a polygon from its circle coordinates.
            if (shape.isCircle()) {
                var r = atlas.math.convertDistance(shape.getProperties().radius, 'meters', 'miles', 2);
                var a = Math.round(2 * Math.PI * r * r * 100) / 100;
                var p = Math.round(2 * Math.PI * r * 100) / 100;

                msg = `Radius: ${r} mi<br/>Area: ${a} sq mi<br/>Perimeter: ${p} mi`;
            } else {
                var g = shape.toJson().geometry;
                var polygon;

                switch (shape.getType()) {
                    case 'LineString':
                        var l = Math.round(atlas.math.getLengthOfPath(g.coordinates, 'miles') * 100) / 100;
                        msg += `Length: ${l} mi`;

                        //Polygon's are rendered as lines when initially being drawn.
                        if (drawingManager.getOptions().mode === 'draw-polygon') {
                            polygon = new atlas.data.Polygon(g.coordinates);
                        }
                        break;
                    case 'Polygon':
                        polygon = g;

                        var p = Math.round(atlas.math.getLengthOfPath(g.coordinates[0], 'miles') * 100) / 100;
                        msg = `Perimeter: ${p} mi`;
                        break;
                }

                if (polygon) {
                    msg += `<br/>Area: ${atlas.math.getArea(polygon, 'squareMiles', 2)} sq mi`;
                }
            }

            document.getElementById('measurementInfo').innerHTML = msg;
        }
    </script>
</head>
<body onload="getMap()">
    <div id="myMap" style="position:relative;width:100%;min-width:290px;height:600px;"></div>

    <div id="measurementInfo" style="position:absolute;top:10px;left:10px;background-color:white;border-radius:10px;padding:10px;"></div>

    <fieldset style="width:calc(100% - 30px);min-width:290px;margin-top:10px;">
        <legend>Create a measuring tool</legend>
        This sample shows how to use the drawing tools to measure distances and areas.
    </fieldset>
</body>
</html>