[OpenLayers-Users] Problem with WMSgetfeatureinfo control

[Paul Wittle]

Hi folks,

After a morning of list surfing and tweaks this one has me beat...I'm having trouble getting a WMSgetfeatureinfo control to work.  The original overlays were in WGS84 whilst the mapping is OSGB but I've not reprojected the layer in GeoServer so I don't think it should be a projection issue.

I've added layers:[] and layerurls:[] to the infocontrol and then subsequently moved the layer control to the for loop at the bottom (see code example below).

    var infoControls = {
         click: new OpenLayers.Control.WMSGetFeatureInfo({
         url: "https://domain/geoserver/wms",
         layerurls: ["https://domain/geoserver/database/wms","https://domain/geoserver/ODS/wms"],
         title: 'Identify features by clicking',
         queryVisible: true
        })
    };

    //Add the appropriate handlers
    for (var i in infoControls) {
            infoControls[i].events.register("getfeatureinfo", this, showInfo);
            map.addControl(infoControls[i]);
    }
    infoControls.click.activate();

    for (var key in infoControls) {
           var control = infoControls[key];
           control.layers = [DCycle, PCycle];
    }

The domain is not available publicly so it is difficult of you to test the issue but perhaps I'm missing something obvious.  The layer definition is as follows:

var DCycle = new OpenLayers.Layer.WMS("Raw Locations",
            "https://domain/geoserver/database/wms", {
             LAYERS: 'database:cycleracksOSGB',
             srs: 'EPSG:27700',
             STYLES: '',
             format: format,
            transparent: 'true',
            tiled: true,
            tilesOrigin : map.maxExtent.left + ',' + map.maxExtent.bottom
}, {
           buffer: 0,
          displayOutsideMaxExtent: true,
          isBaseLayer: false,
          // exclude this layer from layer container nodes
          displayInLayerSwitcher: true
});

var PCycle = new OpenLayers.Layer.WMS("Published Locations",
          "https://domain/geoserver/ODS/wms", {
            LAYERS: 'ODS:ODScycleOSGB',
           STYLES: '',
           format: format,
           transparent: 'true',
           tiled: true,
           tilesOrigin : map.maxExtent.left + ',' + map.maxExtent.bottom
}, {
           buffer: 0,
           displayOutsideMaxExtent: true,
           isBaseLayer: false,
          // exclude this layer from layer container nodes
          displayInLayerSwitcher: true
});

var mapPanel = new GeoExt.MapPanel({
         renderTo:'mapContainer',
         width: 600,
         height: 400,
         map: map,
         zoom: 6.5,
         title: 'Map Window',
         layers: [BMap, DCycle, PCycle]
});

The problem is that clicking on the map has no effect the get feature request is ignored. This only happens when I try to limit the layers, but that said, I think it only queries the base map so it must be a problem with the layer definition but I'm not sure what. Any suggestions?

Thanks,
Paul

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