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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <title>KML Ground Overlay as Image Layer - Azure Maps Web SDK Samples</title> | |
| <meta charset="utf-8" /> | |
| <link rel="shortcut icon" href="/favicon.ico"/> | |
| <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 overlay KML Ground Overlay information as an image layer on the map." /> | |
| <meta name="keywords" content="Microsoft maps, map, gis, API, SDK, image, raster, kml, layer, ground overlay, groundoverlay" /> | |
| <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; | |
| //KML Ground Overlay information extracted from: https://commons.wikimedia.org/wiki/File:Chartres.svg/overlay.kml | |
| var overlayInfo = { | |
| url: '../Common/images/image-overlays/1600px-Chartres.svg.png', | |
| north: 48.44820923628113, | |
| south: 48.44737203258976, | |
| east: 1.488833825534365, | |
| west: 1.486788581643038, | |
| kmlRotation: 46.44067597839695 | |
| }; | |
| 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: [-122.33, 47.6], | |
| zoom: 12, | |
| view: 'Auto', | |
| //Add authentication details for connecting to Azure Maps. | |
| authOptions: { | |
| //Use Azure Active Directory authentication. | |
| authType: 'anonymous', | |
| clientId: 'c9f2f391-13f1-407b-a4a5-f0a241bacfbf', //Your Azure Active Directory client id for accessing your Azure Maps account. | |
| getToken: function (resolve, reject, map) { | |
| //URL to your authentication service that retrieves an Azure Active Directory Token. | |
| var tokenServiceUrl = 'https://azuremapscodesamples.azurewebsites.us/Common/TokenService.ashx'; | |
| 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 () { | |
| //Calculate the corner coordinates of the ground overlay. | |
| var coords = atlas.layer.ImageLayer.getCoordinatesFromEdges( | |
| overlayInfo.north, overlayInfo.south, overlayInfo.east, overlayInfo.west, | |
| //KML rotations are counter-clockwise, subtrack from 360 to make them clockwise. | |
| 360 - overlayInfo.kmlRotation | |
| ); | |
| //Create an image layer from the ground overlay data and add it to the map. | |
| map.layers.add(new atlas.layer.ImageLayer({ | |
| url: overlayInfo.url, | |
| coordinates: coords | |
| })); | |
| //Optionally, calculate the bounds of the coordinates and use it set the map view. | |
| map.setCamera({ | |
| bounds: atlas.data.BoundingBox.fromPositions(coords) | |
| }); | |
| //Create a style control and add it to the map. | |
| map.controls.add(new atlas.control.StyleControl({ | |
| style: 'dark' | |
| }), { | |
| position: 'top-right' | |
| }); | |
| }); | |
| } | |
| </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><h1 style="font-size:16px">KML Ground Overlay as Image Layer</h1></legend> | |
| This sample shows how to overlay KML Ground Overlay information as an image layer on the map. | |
| KML ground overlays provide north, south, east, and west coordinates and a counter-clockwise rotation, | |
| where as the image layer expects coordinates for each corner of the image. The KML ground overlay in this sample is of the Chartres cathedral and sourced from <a href="https://commons.wikimedia.org/wiki/File:Chartres.svg/overlay.kml">wikimedia</a>. | |
| </fieldset> | |
| </body> | |
| </html> |