File: feature-group-bounds.html

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<!DOCTYPE html>
<html>
<head>
	<title>Leaflet debug page</title>

	<link rel="stylesheet" href="../../dist/leaflet.css" />

	<link rel="stylesheet" href="../css/screen.css" />

	<script type="text/javascript" src="../../build/deps.js"></script>
	<script src="../leaflet-include.js"></script>
</head>
<body>

	<div id="map" style="width: 600px; height: 600px; border: 1px solid #ccc"></div>
	<button onclick="geojsonLayerBounds();">Show GeoJSON layer bounds</button>
	<button onclick="featureGroupBounds();">Show feature group bounds</button>

	<script type="text/javascript" src="geojson-sample.js"></script>
	<script type="text/javascript">

		var cloudmadeUrl = 'http://{s}.tile.cloudmade.com/d4fc77ea4a63471cab2423e66626cbb6/997/256/{z}/{x}/{y}.png',
			cloudmadeAttribution = 'Map data &copy; 2011 OpenStreetMap contributors, Imagery &copy; 2011 CloudMade',
			cloudmade = new L.TileLayer(cloudmadeUrl, {maxZoom: 18, attribution: cloudmadeAttribution}),
			rectangle,
			featureGroup;

		var map = new L.Map('map', {
			center: new L.LatLng(0.78, 102.37),
			zoom: 7,
			layers: [cloudmade]
		});

		var geojson = L.geoJson(geojsonSample, {

			style: function (feature) {
				return {color: feature.properties.color};
			},

			onEachFeature: function (feature, layer) {
				var popupText = 'geometry type: ' + feature.geometry.type;

				if (feature.properties.color) {
					popupText += '<br/>color: ' + feature.properties.color
				}

				layer.bindPopup(popupText);
			}
		});

		geojson.addLayer(new L.Marker(new L.LatLng(2.745530718801952, 105.194091796875)))

		var eye1 = new L.Marker(new L.LatLng(-0.7250783020332547, 101.8212890625));
		var eye2 = new L.Marker(new L.LatLng(-0.7360637370492077, 103.2275390625));
		var nose = new L.Marker(new L.LatLng(-1.3292264529974207, 102.5463867187));
		var mouth = new L.Polyline([
			new L.LatLng(-1.3841426927920029, 101.7333984375),
			new L.LatLng(-1.6037944300589726, 101.964111328125),
			new L.LatLng(-1.6806671337507222, 102.249755859375),
			new L.LatLng(-1.7355743631421197, 102.67822265625),
			new L.LatLng(-1.5928123762763, 103.0078125),
			new L.LatLng(-1.3292264529974207, 103.3154296875)
		]);
		map.addLayer(eye1).addLayer(eye2).addLayer(nose).addLayer(mouth);
		featureGroup = new L.FeatureGroup([eye1, eye2, nose, mouth]);

		map.addLayer(geojson);
		map.addLayer(featureGroup);

		function geojsonLayerBounds() {
			if (rectangle) {
				rectangle.setBounds(geojson.getBounds());
			} else {
				rectangle = new L.Rectangle(geojson.getBounds());
				map.addLayer(rectangle);
			}
		}

		function featureGroupBounds() {
			if (rectangle) {
				rectangle.setBounds(featureGroup.getBounds());
			} else {
				rectangle = new L.Rectangle(featureGroup.getBounds());
				map.addLayer(rectangle);
			}

		}
	</script>
</body>
</html>