Benutzer:Red Rooster: Unterschied zwischen den Versionen

Benutzer:Red Rooster (Quelltext anzeigen)

Version vom 15. März 2008, 23:46 Uhr

4.843 Bytes hinzugefügt , 15. März 2008

Bürokraten, Oberflächenadministratoren, SMW-Administratoren, SMW-Kuratoren, SMW-Editoren, Oversighter, Administratoren, Widget-Bearbeiter

204.491

Bearbeitungen

@@ Zeile 26: / Zeile 26: @@
 src="http://www.openlayers.org/api/OpenLayers.js">
 </wikiscript>
+    <wikiscript type="text/javascript">
+        var lon = 5;
+        var lat = 40;
+        var zoom = 5;
+        var map, layer, gml;
+        function export_vectors() {
+            var x = new OpenLayers.Format.XML();
+            var content = x.write(gml.renderer.rendererRoot);
+            $("vectors").value = content;
+            $("vectors").style.display = "block";
+            $("vectorlink").href = "data:image/svg+xml," + escape(content);
+            $("vectorlink").style.display="block";
+        }
+        function on_feature_hover(feature) {
+            var text ="<ul>";
+            var type ="way";
+            if (feature.geometry.CLASS_NAME == "OpenLayers.Geometry.Point") {
+                type = "node";
+            }
+            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>";
+            for (var key in feature.attributes) {
+                text += "<li>" + key + ": " + feature.attributes[key] + "</li>";
+            }
+            text += "</ul>";
+            $("status").innerHTML = text;
+        }
+        function clear_data() {
+            gml.destroyFeatures();
+        }
+        function new_data() {
+            if (!check_zoom()) { return; }
+            clear_data();
+            gml.loaded = false;
+            gml.url = "http://www.openstreetmap.org/api/0.5/map?bbox=" + map.getExtent().toBBOX();
+            $("status").innerHTML = "Loading more data...";
+            gml.loadGML();
+        }
+        function style_osm_feature(feature) {
+            feature.style = OpenLayers.Util.extend({'fill':'black'}, OpenLayers.Feature.Vector.style['default']);
+            if (feature.attributes.highway == "motorway") {
+                feature.style.strokeColor = "blue";
+                feature.style.strokeWidth = 5;
+            } else if (feature.attributes.highway == "primary") {
+                feature.style.strokeColor = "red";
+            } else if (feature.attributes.highway == "secondary") {
+                feature.style.strokeColor = "orange";
+            } else if (feature.attributes.highway) {
+                feature.style.strokeColor = "black";
+            }
+        }
+        function check_zoom() {
+            var zoom = map.getZoom();
+            if (zoom >= 11) { return true; }
+            if (zoom >= 9) { return confirm("Loading this amount of data may slow your browser. Are you sure you want to do this?"); }
+            $("status").innerHTML = "Area too large. Zoom in to load data. (Current zoom level: "+ zoom + ". Must be at zoom 9+.)";
+            return false;
+        }
+        function init(){
+            OpenLayers.ProxyHost = "proxy.cgi?url=";
+            OpenLayers.Feature.Vector.style['default'].strokeWidth = 4;
+            OpenLayers.Feature.Vector.style['default'].cursor = 'pointer';
+            map = new OpenLayers.Map('map', {'maxResolution': 360/512/16, 'numZoomLevels':15, controls: [ new OpenLayers.Control.Navigation(), new OpenLayers.Control.PanZoomBar() ]});
+            map.addControl(new OpenLayers.Control.LayerSwitcher());
+            map.addControl(new OpenLayers.Control.Permalink());
+            layer = new OpenLayers.Layer.WMS( "OSM",
+               [
+                 "http://t1.hypercube.telascience.org/tiles?",
+                 "http://t2.hypercube.telascience.org/tiles?",
+                 "http://t3.hypercube.telascience.org/tiles?",
+                 "http://t4.hypercube.telascience.org/tiles?"
+                 ],
+                {layers: 'osm-4326', format: 'image/png' } );
+            map.addLayer(layer);
+            if (!map.getCenter()) {
+                gml = new OpenLayers.Layer.GML("OSM", "osm/sutton_coldfield.osm", {format: OpenLayers.Format.OSM});
+                map.zoomToExtent(new OpenLayers.Bounds(-1.819072,52.549034,-1.814341,52.551582));
+            } else {
+                if (map.getZoom() >= 11) {
+                    gml = new OpenLayers.Layer.GML("OSM", "http://www.openstreetmap.org/api/0.5/map?bbox=" + map.getExtent().toBBOX(), {format: OpenLayers.Format.OSM});
+                } else {
+                    gml = new OpenLayers.Layer.GML("OSM", "xml/cambridgeport.osm", {format: OpenLayers.Format.OSM});
+                }
+            }
+            gml.events.register("loadstart", null, function() { $("status").innerHTML = "Loading..."; })
+            gml.events.register("loadend", null, function() { $("status").innerHTML = ""; })
+            map.addLayer(gml);
+            gml.preFeatureInsert = style_osm_feature;
+            var sf = new OpenLayers.Control.SelectFeature(gml, {'onSelect': on_feature_hover});
+            map.addControl(sf);
+            sf.activate();
+        }
+    </wikiscript>