e8960054a9
git-svn-id: http://svn.openlayers.org/trunk/openlayers@12082 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
127 lines
6.0 KiB
HTML
127 lines
6.0 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
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<meta name="apple-mobile-web-app-capable" content="yes">
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<title>OpenLayers: OSM Layer</title>
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<link rel="stylesheet" href="../theme/default/style.css" type="text/css">
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<link rel="stylesheet" href="style.css" type="text/css">
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<style>
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#map {
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height: 350px;
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}
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</style>
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<script src="../lib/OpenLayers.js"></script>
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<script type="text/javascript">
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var lon = 5;
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var lat = 40;
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var zoom = 5;
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var map, layer, gml;
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function export_vectors() {
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var x = new OpenLayers.Format.XML();
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var content = x.write(gml.renderer.rendererRoot);
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$("vectors").value = content;
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$("vectors").style.display = "block";
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$("vectorlink").href = "data:image/svg+xml," + escape(content);
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$("vectorlink").style.display="block";
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}
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function on_feature_hover(feature) {
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var text ="<ul>";
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var type ="way";
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if (feature.geometry.CLASS_NAME == "OpenLayers.Geometry.Point") {
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type = "node";
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}
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text += "<li>" + feature.osm_id + ": <a href='http://crschmidt.net/osm/attributes.html?type="+type+"&id="+feature.osm_id+"'>Edit</a>, <a href='http://www.openstreetmap.org/api/0.5/"+type + "/" + feature.osm_id + "'>API</a></li>";
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for (var key in feature.attributes) {
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text += "<li>" + key + ": " + feature.attributes[key] + "</li>";
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}
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text += "</ul>";
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$("status").innerHTML = text;
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}
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function clear_data() {
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gml.destroyFeatures();
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}
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function new_data() {
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if (!check_zoom()) { return; }
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clear_data();
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gml.loaded = false;
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gml.url = "http://www.openstreetmap.org/api/0.5/map?bbox=" + map.getExtent().toBBOX();
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$("status").innerHTML = "Loading more data...";
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gml.loadGML();
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}
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function style_osm_feature(feature) {
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feature.style = OpenLayers.Util.extend({'fill':'black'}, OpenLayers.Feature.Vector.style['default']);
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if (feature.attributes.highway == "motorway") {
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feature.style.strokeColor = "blue";
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feature.style.strokeWidth = 5;
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} else if (feature.attributes.highway == "primary") {
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feature.style.strokeColor = "red";
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} else if (feature.attributes.highway == "secondary") {
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feature.style.strokeColor = "orange";
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} else if (feature.attributes.highway) {
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feature.style.strokeColor = "black";
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}
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}
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function check_zoom() {
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var zoom = map.getZoom();
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if (zoom >= 11) { return true; }
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if (zoom >= 9) { return confirm("Loading this amount of data may slow your browser. Are you sure you want to do this?"); }
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$("status").innerHTML = "Area too large. Zoom in to load data. (Current zoom level: "+ zoom + ". Must be at zoom 9+.)";
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return false;
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}
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function init(){
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OpenLayers.ProxyHost = "proxy.cgi?url=";
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OpenLayers.Feature.Vector.style['default'].strokeWidth = 4;
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OpenLayers.Feature.Vector.style['default'].cursor = 'pointer';
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map = new OpenLayers.Map('map', {'maxResolution': 360/512/16, 'numZoomLevels':15, controls: [ new OpenLayers.Control.Navigation(), new OpenLayers.Control.PanZoomBar() ]});
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map.addControl(new OpenLayers.Control.LayerSwitcher());
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map.addControl(new OpenLayers.Control.Permalink());
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layer = new OpenLayers.Layer.WMS( "OSM",
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[
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"http://t1.hypercube.telascience.org/tiles?",
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"http://t2.hypercube.telascience.org/tiles?",
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"http://t3.hypercube.telascience.org/tiles?",
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"http://t4.hypercube.telascience.org/tiles?"
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],
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{layers: 'osm-4326', format: 'image/png' } );
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map.addLayer(layer);
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if (!map.getCenter()) {
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gml = new OpenLayers.Layer.GML("OSM", "osm/sutton_coldfield.osm", {format: OpenLayers.Format.OSM});
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map.zoomToExtent(new OpenLayers.Bounds(-1.819072,52.549034,-1.814341,52.551582));
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} else {
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if (map.getZoom() >= 11) {
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gml = new OpenLayers.Layer.GML("OSM", "http://www.openstreetmap.org/api/0.5/map?bbox=" + map.getExtent().toBBOX(), {format: OpenLayers.Format.OSM});
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} else {
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gml = new OpenLayers.Layer.GML("OSM", "xml/cambridgeport.osm", {format: OpenLayers.Format.OSM});
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}
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}
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gml.events.register("loadstart", null, function() { $("status").innerHTML = "Loading..."; })
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gml.events.register("loadend", null, function() { $("status").innerHTML = ""; })
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map.addLayer(gml);
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gml.preFeatureInsert = style_osm_feature;
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var sf = new OpenLayers.Control.SelectFeature(gml, {'onSelect': on_feature_hover});
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map.addControl(sf);
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sf.activate();
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}
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</script>
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</head>
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<body onload="init()">
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<h1 id="title">Advanced OSM Layer</h1>
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<div id="tags">
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openstreetmap advanced
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</div>
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<div id="map" class="smallmap"></div>
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<div id="download">
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<ul>
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<li><a href="javascript:new_data();">Download current view</a></li>
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<li><a href="javascript:clear_data();">Clear current data</a></li>
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<li><a href="javascript:export_vectors();">Export Vector Data</a></li>
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</ul>
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<div id="status">Loading...</div>
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</div>
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<a id="vectorlink" href="" style="display:none">Display via data: URL (FF Only)</a>
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<textarea id="vectors" style="display:none;width:100%" rows="10"></textarea>
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</body>
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</html>
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