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openlayersgeoserver

Geoserver WMS layer does not show up in OpenLayers

I want to add a wms-overlay to an existing openlayers-map on a website. The layer is stored on geoserver. When i open the layer on geoserver, it works just fine. The data itself is in EPSG:31297.

But when i load the website openlayers is empty. Although the layer is shown in the layerswitcher.

I know there are a few questions concerning that topic, usually it had something to do with the project. However, in this case the projection should be fine. I can't figure out why it doesn't work.

Here is the code:

// My layer 
        var wms_layer = new OpenLayers.Layer.WMS (
            "Layer",
            "http://.../geoserver/wms",
            {
                layers: "master:dauersied_2mio",                
                transparent: "true",
                projection: "EPSG:3857"

            },
            {isBaseLayer: false}
        );  

        map.addLayer(wms_layer);
Solution

  • I totally forgot to declare a projection when initializing the map object. Now it works like a charm.

    map = new OpenLayers.Map('map', {
            projection: new OpenLayers.Projection("EPSG:3857")
        });