Bürokraten, Oberflächenadministratoren, SMW-Administratoren, SMW-Kuratoren, SMW-Editoren, Oversighter, Administratoren, Widget-Bearbeiter
203.083
Bearbeitungen
Red Rooster
Beigetreten 17. Februar 2007
→wikiscript test
src="http://www.openlayers.org/api/OpenLayers.js">
src="http://www.openlayers.org/api/OpenLayers.js">
</wikiscript>
</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>