e8960054a9
git-svn-id: http://svn.openlayers.org/trunk/openlayers@12082 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
190 lines
8.7 KiB
HTML
190 lines
8.7 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>SOS Client Example</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 type="text/css">
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.sosmap {
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width: 768px;
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height: 512px;
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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 map;
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OpenLayers.ProxyHost = "proxy.cgi?url=";
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OpenLayers.Util.extend(OpenLayers.Lang.en,
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{
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'SOSClientType': "Type",
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'SOSClientTime': "Date/time",
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'SOSClientLastvalue': "Last value"
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}
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);
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// Example class on how to put all the OpenLayers SOS pieces together
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OpenLayers.SOSClient = OpenLayers.Class({
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url: null,
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map: null,
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capsformat: new OpenLayers.Format.SOSCapabilities(),
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obsformat: new OpenLayers.Format.SOSGetObservation(),
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initialize: function (options) {
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OpenLayers.Util.extend(this, options);
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var params = {'service': 'SOS', 'request': 'GetCapabilities'};
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var paramString = OpenLayers.Util.getParameterString(params);
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url = OpenLayers.Util.urlAppend(this.url, paramString);
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OpenLayers.Request.GET({url: url,
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success: this.parseSOSCaps, scope: this});
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},
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getFois: function() {
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var result = [];
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this.offeringCount = 0;
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for (var name in this.SOSCapabilities.contents.offeringList) {
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var offering = this.SOSCapabilities.contents.offeringList[name];
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this.offeringCount++;
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for (var i=0, len=offering.featureOfInterestIds.length; i<len; i++) {
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var foi = offering.featureOfInterestIds[i];
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if (OpenLayers.Util.indexOf(result, foi) === -1) {
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result.push(foi);
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}
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}
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}
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return result;
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},
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parseSOSCaps: function(response) {
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// cache capabilities for future use
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this.SOSCapabilities = this.capsformat.read(response.responseXML || response.responseText);
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this.layer = new OpenLayers.Layer.Vector("Stations", {
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strategies: [new OpenLayers.Strategy.Fixed()],
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protocol: new OpenLayers.Protocol.SOS({
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formatOptions: {internalProjection: map.getProjectionObject()},
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url: this.url,
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fois: this.getFois()
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})
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});
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this.map.addLayer(this.layer);
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this.ctrl = new OpenLayers.Control.SelectFeature(this.layer,
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{scope: this, onSelect: this.onFeatureSelect});
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this.map.addControl(this.ctrl);
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this.ctrl.activate();
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},
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getTitleForObservedProperty: function(property) {
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for (var name in this.SOSCapabilities.contents.offeringList) {
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var offering = this.SOSCapabilities.contents.offeringList[name];
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if (offering.observedProperties[0] === property) {
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return offering.name;
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}
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}
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},
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showPopup: function(response) {
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this.count++;
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var output = this.obsformat.read(response.responseXML || response.responseText);
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if (output.measurements.length > 0) {
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this.html += '<tr>';
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this.html += '<td width="100">'+this.getTitleForObservedProperty(output.measurements[0].observedProperty)+'</td>';
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this.html += '<td>'+output.measurements[0].samplingTime.timeInstant.timePosition+'</td>';
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this.html += '<td>'+output.measurements[0].result.value + ' ' + output.measurements[0].result.uom + '</td>';
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this.html += '</tr>';
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}
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// check if we are done
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if (this.count === this.numRequests) {
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var html = '<table cellspacing="10"><tbody>';
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html += '<tr>';
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html += '<th><b>'+OpenLayers.i18n('SOSClientType')+'</b></th>';
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html += '<th><b>'+OpenLayers.i18n('SOSClientTime')+'</b></th>';
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html += '<th><b>'+OpenLayers.i18n('SOSClientLastvalue')+'</b></th>';
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html += '</tr>';
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html += this.html;
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html += '</tbody></table>';
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var popup = new OpenLayers.Popup.FramedCloud("sensor",
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this.feature.geometry.getBounds().getCenterLonLat(),
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null,
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html,
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null,
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true,
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function(e) {
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this.hide();
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OpenLayers.Event.stop(e);
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// unselect so popup can be shown again
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this.map.getControlsByClass('OpenLayers.Control.SelectFeature')[0].unselectAll();
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}
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);
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this.feature.popup = popup;
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this.map.addPopup(popup);
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}
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},
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onFeatureSelect: function(feature) {
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this.feature = feature;
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this.count = 0;
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this.html = '';
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this.numRequests = this.offeringCount;
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if (!this.responseFormat) {
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for (format in this.SOSCapabilities.operationsMetadata.GetObservation.parameters.responseFormat.allowedValues) {
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// look for a text/xml type of format
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if (format.indexOf('text/xml') >= 0) {
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this.responseFormat = format;
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}
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}
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}
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// do a GetObservation request to get the latest values
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for (var name in this.SOSCapabilities.contents.offeringList) {
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var offering = this.SOSCapabilities.contents.offeringList[name];
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var xml = this.obsformat.write({
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eventTime: 'latest',
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resultModel: 'om:Measurement',
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responseMode: 'inline',
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procedure: feature.attributes.id,
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offering: name,
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observedProperties: offering.observedProperties,
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responseFormat: this.responseFormat
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});
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OpenLayers.Request.POST({
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url: this.url,
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scope: this,
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failure: this.showPopup,
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success: this.showPopup,
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data: xml
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});
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}
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},
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destroy: function () {
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},
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CLASS_NAME: "OpenLayers.SOSClient"
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});
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function init(){
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map = new OpenLayers.Map( 'map' );
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var baseLayer = new OpenLayers.Layer.WMS("Test Layer", "http://vmap0.tiles.osgeo.org/wms/vmap0?", {
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layers: "basic"}, {singleTile: true});
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var sos = new OpenLayers.SOSClient({map: map, url: 'http://v-swe.uni-muenster.de:8080/WeatherSOS/sos?'});
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map.addLayers([baseLayer]);
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map.setCenter(new OpenLayers.LonLat(5, 45), 4);
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map.addControl( new OpenLayers.Control.LayerSwitcher() );
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map.addControl( new OpenLayers.Control.MousePosition() );
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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">SOS client example</h1>
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<div id="tags">
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sos, sensor, observation, popup, advanced
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</div>
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<p id="shortdesc">
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Shows how to connect OpenLayers to a Sensor Observation Service (SOS)
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</p>
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<div id="map" class="sosmap"></div>
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<div id="docs">
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<p>This example uses a vector layer with a Protocol.SOS and a fixed Strategy.
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</p><p>When clicking on a point feature (the weather stations offered by the SOS), the
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latest values for all offerings are displayed in a popup.</p>
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</div>
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</body>
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</html>
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