[OpenLayers-Users] the same ol' 4326/900913 stuff-up

[Richard Greenwood]

On Sat, Oct 15, 2011 at 2:36 PM, Puneet Kishor <punk.kish at gmail.com> wrote:
> I am confounded by this basic problem, so instead of wasting any more time on it, I ask your help (at the risk it being a stupid question). My data are stored in EPSG:4326, and I am having MapServer pull it out with the following incantations
>
>        MAP
>        ..
>                PROJECTION
>                        "init=epsg:4326"
>                        "init=epsg:900913"
>                END


Only one coordinate system may defined with the PROJECTION block. It
doesn't matter which one you define if all of your layers also have a
PROJECTION block


>                WEB
>                        METADATA
>                                ows_enable_request "*"
>                                wms_srs "EPSG:900913 EPSG:4326"
>                        END
>                END
>
>                LAYER
>                ..
>                        NAME "lyr"
>                        DATA "the_geom FROM table USING UNIQUE gid USING srid=4326"
>
>
>                        PROJECTION
>                                "init=epsg:4326"
>                                "init=epsg:900913"
>                        END

Within the LAYER, the PROJECTION block defines the coordinate system
that the layer is in. So only one of the above can be correct.


>                        METADATA
>                                ows_enable_request "*"
>                                wms_srs "EPSG:900913 EPSG:4326"
>                        END
>
> I am adding the layer to my map with
>
>    map = new OpenLayers.Map("map", {
>        projection: new OpenLayers.Projection("EPSG:900913"),
>        displayProjection: new OpenLayers.Projection("EPSG:4326"),
>        units: "dd",
>        maxResolution: 156543.0339,
>        maxExtent: new OpenLayers.Bounds(-20037508, -20037508, 20037508, 20037508)
>    });
>
>    var lyr = new OpenLayers.Layer.WMS(
>        "lyr",
>        "http://server/cgi-bin/app",
>        {layers: "lyr"},
>        {isBaseLayer: false}
>    );
>
>    map.addLayers([lyr]);
>
> Yet, I get the following error
>
>        <ServiceException code="InvalidSRS">
>        msWMSLoadGetMapParams(): WMS server error. Invalid SRS given : SRS must be valid for all requested layers.
>        </ServiceException>
>
> What am I doing wrong?
>
>
> --
> Puneet Kishor _______________________________________________
> Users mailing list
> Users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/openlayers-users
>



-- 
Richard Greenwood
richard.greenwood at gmail.com
www.greenwoodmap.com