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