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AzureMapsGovCloudCodeSamples/AzureMapsCodeSamples/Polygon and Polygon Extrusion Layers/Polygon labels - symbol layer.html
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<title>Polygon labels - symbol 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 the symbol layer can be used to automatically render labels for polygons on the map. " /> | |
<meta name="keywords" content="Microsoft maps, map, gis, API, SDK, template, fill pattern, polygonlayer" /> | |
<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; | |
var data = [ | |
{ | |
"type": "Feature", | |
"properties": { | |
"label": "Polygon 1" | |
}, | |
"geometry": { | |
"type": "Polygon", | |
"coordinates": [[[-102.54364, 42.50045], [-102.14263, 42.49235], [-102.27722, 42.66830], [-102.54364, 42.50045]] | |
] | |
} | |
}, | |
{ | |
"type": "Feature", | |
"properties": { | |
"label": "Polygon 2" | |
}, | |
"geometry": { | |
"type": "Polygon", | |
"coordinates": [[[-100.89294, 42.73490], [-100.91766, 42.46601], [-100.40954, 42.47412], [-100.39581, 42.56521], [-100.72814, 42.57533], [-100.71990, 42.73692], [-100.89294, 42.73490]] | |
] | |
} | |
}, | |
{ | |
"type": "Feature", | |
"properties": { | |
"label": "Polygon 3" | |
}, | |
"geometry": { | |
"type": "Polygon", | |
"coordinates": [[[-101.00555, 41.72828], [-100.92041, 41.61954], [-100.24749, 41.96561], [-100.39306, 42.10637], [-101.00555, 41.72828]] | |
] | |
} | |
}, | |
{ | |
"type": "Feature", | |
"properties": { | |
"label": "Polygon 4" | |
}, | |
"geometry": { | |
"type": "Polygon", | |
"coordinates": [[[-102.69744, 41.70777], [-102.10144, 41.70777], [-102.10144, 41.95540], [-102.69744, 41.95540], [-102.69744, 41.70777]] | |
] | |
} | |
} | |
]; | |
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: [-101.4285, 42.1695], | |
zoom: 8, | |
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 () { | |
datasource = new atlas.source.DataSource(); | |
map.sources.add(datasource); | |
//Add the polygon data to the data source. | |
datasource.add(data); | |
map.layers.add([ | |
//Create a layer to render the polygon data. | |
new atlas.layer.PolygonLayer(datasource), | |
//Create a layer to render the label of the polygon. | |
new atlas.layer.SymbolLayer(datasource, null, { | |
iconOptions: { | |
//Hide the default image. | |
image: 'none' | |
}, | |
textOptions: { | |
//Reference the label property of the polygon as the text field. | |
textField: ['get', 'label'] | |
} | |
}) | |
]); | |
}); | |
} | |
</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">Polygon labels - symbol layer</h1></legend> | |
This sample shows how the symbol layer can be used to automatically render labels for polygons on the map. | |
</fieldset> | |
</body> | |
</html> |