[OpenLayers-Users] GetFeatureInfo

[Nina Helle-Mildt]

Hi there,

a couple of weeks ago I already posted a mail on querying layers using 
the GetFeatureUnfo request. Many thanks to all of you who tried to help 
me! Nevertheless I'm still struggeling with this task:

I have two overlay layers (both wms layers) displaying point data. What 
I want to do is, clicking a point object of one of the two layers with 
the mouse in order to get the results of this query displayed in an 
defined area next to the map.

I would appreciate any help - a complete example would be great!

Best regards
Nina


Below parts of my code:

//Overlay Layers:
var seis = new OpenLayers.Layer.WMS.Untiled("Erdbeben weltweit ", 	 
"http://www.seismologie.bgr.de:8080/cgi-bin/mapserv?map=seis_wms.map",
		{transparent: 'true', layers:
                 ['q_year','q_month','q_week','aktuell_welt']},
		{'buffer': 1},
		{singleTile: true, 'ratio': 1.0},
		{'isBaseLayer': false, 'gutter': 20});
				
var seis_ger = new OpenLayers.Layer.WMS.Untiled("Erdbeben 
Deutschland",	 
"http://www.seismologie.bgr.de:8080/cgi-bin/mapserv?map=seis_d_wms.map",
		{transparent: 'true', layers:
                 ['q_year_ger','q_month_ger','q_week_ger',
                 'aktuell_ger','box']},
		{'buffer': 1},
		{singleTile: true, 'ratio': 1.0},
		{'isBaseLayer': false, 'gutter': 20});
				
...

//Support GetFeatureInfo
	
map.events.register('click', map, function (e) {
document.getElementById('nodeList').innerHTML = "Einen Moment bitte ...";
     	var url =  map.layers[0].getFullRequestString(
	   {
       		REQUEST: "GetFeatureInfo",
       		EXCEPTIONS: "application/vnd.ogc.se_xml",
       		BBOX: map.getExtent().toBBOX(),
       		X: e.xy.x,
       		Y: e.xy.y,
       		INFO_FORMAT: 'text/html',
       		QUERY_LAYERS: map.layers[0].params.LAYERS,
		FEATURE_COUNT: 50,
       		WIDTH: map.size.w,
       		HEIGHT: map.size.h}
	    );
       		
	OpenLayers.loadURL(url, '', this, setHTML);
       	OpenLayers.Event.stop(e);
       	});
       	function setHTML(response) {
       	OpenLayers.Util.getElement('nodeList').innerHTML =
         response.responseText;}




//Support GetFeatureInfo - this Version (works great with only 1 layer)

//	map.events.register('click', map, function (e) {
//	//document.getElementById('map').style.cursor = 'crosshair';
//	OpenLayers.Util.getElement('nodeList').innerHTML = "Einen Moment 
bitte ...";
//	var url =  seis.getFullRequestString({
//		REQUEST: "GetFeatureInfo",
//		EXCEPTIONS: "application/vnd.ogc.se_xml",
//		BBOX: seis.map.getExtent().toBBOX(),
//		X: e.xy.x,
// 		Y: e.xy.y,
// 		INFO_FORMAT: 'text/html',
//		QUERY_LAYERS: seis.params.LAYERS,
//		WIDTH: seis.map.size.w,
//		HEIGHT: seis.map.size.h});
//		OpenLayers.loadURL(url, '', this, setHTML);				//alternativ: 
window.open(url);
//		OpenLayers.Event.stop(e);
//		});
// 		function setHTML(response) {
//		OpenLayers.Util.getElement('nodeList').innerHTML = 
response.responseText;}