leaflet-draw
Version:
Vector drawing plugin for Leaflet
146 lines (128 loc) • 6.08 kB
HTML
<html>
<head>
<title>Leaflet.draw popup event example</title>
<script src="libs/leaflet-src.js"></script>
<link rel="stylesheet" href="libs/leaflet.css" />
<script src="../../src/Leaflet.draw.js"></script>
<script src="../../src/Leaflet.Draw.Event.js"></script>
<link rel="stylesheet" href="../../src/leaflet.draw.css" />
<script src="../../src/Toolbar.js"></script>
<script src="../../src/Tooltip.js"></script>
<script src="../../src/ext/GeometryUtil.js"></script>
<script src="../../src/ext/LatLngUtil.js"></script>
<script src="../../src/ext/LineUtil.Intersect.js"></script>
<script src="../../src/ext/Polygon.Intersect.js"></script>
<script src="../../src/ext/Polyline.Intersect.js"></script>
<script src="../../src/ext/TouchEvents.js"></script>
<script src="../../src/draw/DrawToolbar.js"></script>
<script src="../../src/draw/handler/Draw.Feature.js"></script>
<script src="../../src/draw/handler/Draw.SimpleShape.js"></script>
<script src="../../src/draw/handler/Draw.Polyline.js"></script>
<script src="../../src/draw/handler/Draw.Marker.js"></script>
<script src="../../src/draw/handler/Draw.CircleMarker.js"></script>
<script src="../../src/draw/handler/Draw.Circle.js"></script>
<script src="../../src/draw/handler/Draw.Polygon.js"></script>
<script src="../../src/draw/handler/Draw.Rectangle.js"></script>
<script src="../../src/edit/EditToolbar.js"></script>
<script src="../../src/edit/handler/EditToolbar.Edit.js"></script>
<script src="../../src/edit/handler/EditToolbar.Delete.js"></script>
<script src="../../src/Control.Draw.js"></script>
<script src="../../src/edit/handler/Edit.Poly.js"></script>
<script src="../../src/edit/handler/Edit.SimpleShape.js"></script>
<script src="../../src/edit/handler/Edit.Marker.js"></script>
<script src="../../src/edit/handler/Edit.CircleMarker.js"></script>
<script src="../../src/edit/handler/Edit.Circle.js"></script>
<script src="../../src/edit/handler/Edit.Rectangle.js"></script>
</head>
<body>
<div id="map" style="width: 800px; height: 600px; border: 1px solid #ccc"></div>
<script>
var osmUrl = 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
osmAttrib = '© <a href="http://openstreetmap.org/copyright">OpenStreetMap</a> contributors',
osm = L.tileLayer(osmUrl, {maxZoom: 18, attribution: osmAttrib}),
map = new L.Map('map', {center: new L.LatLng(29.9792, 31.1344), zoom: 15}),
drawnItems = L.featureGroup().addTo(map);
L.control.layers({
"osm": osm.addTo(map),
"google": L.tileLayer('http://www.google.cn/maps/vt?lyrs=s@189&gl=cn&x={x}&y={y}&z={z}', {
attribution: 'google'
})
}, {'drawlayer':drawnItems}, { position: 'topright', collapsed: false }).addTo(map);
map.addControl(new L.Control.Draw({
edit: {
featureGroup: drawnItems,
poly : {
allowIntersection : false
}
},
draw: {
polygon : {
allowIntersection: false,
showArea:true
}
}
}));
// Truncate value based on number of decimals
var _round = function(num, len) {
return Math.round(num*(Math.pow(10, len)))/(Math.pow(10, len));
};
// Helper method to format LatLng object (x.xxxxxx, y.yyyyyy)
var strLatLng = function(latlng) {
return "("+_round(latlng.lat, 6)+", "+_round(latlng.lng, 6)+")";
};
// Generate popup content based on layer type
// - Returns HTML string, or null if unknown object
var getPopupContent = function(layer) {
// Marker - add lat/long
if (layer instanceof L.Marker || layer instanceof L.CircleMarker) {
return strLatLng(layer.getLatLng());
// Circle - lat/long, radius
} else if (layer instanceof L.Circle) {
var center = layer.getLatLng(),
radius = layer.getRadius();
return "Center: "+strLatLng(center)+"<br />"
+"Radius: "+_round(radius, 2)+" m";
// Rectangle/Polygon - area
} else if (layer instanceof L.Polygon) {
var latlngs = layer._defaultShape ? layer._defaultShape() : layer.getLatLngs(),
area = L.GeometryUtil.geodesicArea(latlngs);
return "Area: "+L.GeometryUtil.readableArea(area, true);
// Polyline - distance
} else if (layer instanceof L.Polyline) {
var latlngs = layer._defaultShape ? layer._defaultShape() : layer.getLatLngs(),
distance = 0;
if (latlngs.length < 2) {
return "Distance: N/A";
} else {
for (var i = 0; i < latlngs.length-1; i++) {
distance += latlngs[i].distanceTo(latlngs[i+1]);
}
return "Distance: "+_round(distance, 2)+" m";
}
}
return null;
};
// Object created - bind popup to layer, add to feature group
map.on(L.Draw.Event.CREATED, function(event) {
var layer = event.layer;
var content = getPopupContent(layer);
if (content !== null) {
layer.bindPopup(content);
}
drawnItems.addLayer(layer);
});
// Object(s) edited - update popups
map.on(L.Draw.Event.EDITED, function(event) {
var layers = event.layers,
content = null;
layers.eachLayer(function(layer) {
content = getPopupContent(layer);
if (content !== null) {
layer.setPopupContent(content);
}
});
});
</script>
</body>
</html>