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Select shapes with selection control.html
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Select shapes with selection control.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Select shapes with selection control - 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 selection control with a data source of polygons." />
<meta name="keywords" content="Microsoft maps, maps, map, API, SDK, GIS, custom, control, custom control, datasource, data source" />
<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/1/atlas-drawing.min.css" type="text/css" />
<script src="https://atlas.microsoft.com/sdk/javascript/drawing/1/atlas-drawing.min.js"></script>
<!-- Add references to the Azure Maps Selection Control module JavaScript and CSS files. -->
<link rel="stylesheet" href="/lib/azure-maps/azure-maps-selection-control.min.css" type="text/css" />
<script src="/lib/azure-maps/azure-maps-selection-control.min.js"></script>
<script>
var map, datasource;
//GeoJSON feed that contains the data we want to map.
var geojsonFeed = '/data/geojson/US_County_Boundaries.json';
function getMap() {
//Initialize a map instance.
map = new atlas.Map('myMap', {
center: [-110, 50],
zoom: 2,
style: 'grayscale_light',
view: 'Auto',
//Add authentication details for connecting to Azure Maps.
authOptions: {
//Use Microsoft Entra ID authentication.
authType: 'anonymous',
clientId: 'e6b6ab59-eb5d-4d25-aa57-581135b927f0', //Your Azure Maps client id for accessing your Azure Maps account.
getToken: function (resolve, reject, map) {
//URL to your authentication service that retrieves an Microsoft Entra ID Token.
var tokenServiceUrl = 'https://samples.azuremaps.com/api/GetAzureMapsToken';
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();
map.sources.add(datasource);
//Import the GeoJSON data into the data source. Capture the point data after it has loaded for quick lookups later.
datasource.importDataFromUrl(geojsonFeed);
//Create layers to render the shapes.
map.layers.add([
new atlas.layer.PolygonLayer(datasource, null, {
filter: ['any', ['==', ['geometry-type'], 'Polygon'], ['==', ['geometry-type'], 'MultiPolygon']]
}),
new atlas.layer.LineLayer(datasource, null, {
filter: ['any', ['==', ['geometry-type'], 'LineString'], ['==', ['geometry-type'], 'MultiLineString']]
}),
new atlas.layer.BubbleLayer(datasource, null, {
filter: ['any', ['==', ['geometry-type'], 'Point'], ['==', ['geometry-type'], 'MultiPoint']]
})
]);
var control = new atlas.control.SelectionControl({
//Allow any shape to be selected.
shapeSelectionMode: 'any',
source: datasource
});
map.events.add('dataselected', control, function (selectedShapes) {
alert(selectedShapes.length + ' shapes selected');
});
//Add controls to the map.
map.controls.add([
//Optional. Add the map style control so we can see how the custom control reacts.
new atlas.control.StyleControl({
style: 'auto',
persistSearchArea: true
}),
//Add the selection control to the map.
control
], {
position: 'top-left'
});
});
}
</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>Select shapes with selection control</legend>
This sample shows how to use the selection control with a data source of polygons.
By default any type of shape can be selected. Use the "shapeSelectionMode" option of the selection control to limit the type of shapes that can be selected.
Press the pointer button in the top right corner of the map to choose a selection mode, then draw on the map.
This samples uses the open source <a href="https://github.com/Azure-Samples/azure-maps-selection-control/" target="_blank">Azure Maps Selection Control module</a>
</fieldset>
</body>
</html>