[OpenLayers-Users] Problem when switching WMS layers on and off with Google Base Layer

[Robert Hicks]

Thanks for the reply, does this mean I cannot use 4326 as an srs for my
overlays? I have in the layer declaration srs: 'EPSG:4326', but in firebug I
get a bad request 404 reported and in the call it says EPSG 900913.

On Thu, Jan 29, 2009 at 4:34 PM, Christopher Schmidt <
crschmidt at metacarta.com> wrote:

> On Thu, Jan 29, 2009 at 04:18:34PM -0500, Robert Hicks wrote:
> > Hello all,
> > I am having an issue when I have some WMS Layers over top of a Google
> base
> > map. Basically what happens is when I toggle to layers on and off in the
> > layer switcher the next time the layer appears it is shifted down
> relative
> > to the Google map. It does not do this with the basic OpenLayers base map
> > from http://labs.metacarta.com/wms/vmap0.
>
> Use spherical mercator.
>
> http://docs.openlayers.org/library/spherical_mercator
> http://openlayers.org/dev/examples/spherical-mercator.html
>
> -- Chris
>
> > Here are my layer definitions:
> >
> > var parcels = new OpenLayers.Layer.WMS(
> >                 "Parcels", geoserverDomain,
> >                 {
> >                     //width: '800',
> >                     srs: 'EPSG:4326',
> >                     layers: 'mylayer_parcels',
> >                     //height: '341',
> >                     styles: '',
> >      format: 'image/png',
> >      transparent: 'true',
> >      attribution: "A  Service"
> >                 }
> >             );
> >             var munic = new OpenLayers.Layer.WMS(
> >                 "Municipality", geoserverDomain,
> >                 {
> >                     //width: '800',
> >                     srs: 'EPSG:4326',
> >                     layers: 'mylayer_munic',
> >                     //height: '341',
> >                     styles: '',
> >                     format: 'image/png',
> >      transparent: 'true',
> >      attribution: "A  Service"
> >                 }
> >             );
> >             var roadcenterlines = new OpenLayers.Layer.WMS(
> >                 "Road Center Lines", geoserverDomain,
> >                 {
> >                     //width: '800',
> >                     srs: 'EPSG:4326',
> >                     layers: 'mylayer_roadcenterlines_ft',
> >                     //height: '341',
> >                     styles: '',
> >                     format: 'image/png',
> >      transparent: 'true',
> >      attribution: "A  Service"
> >                 }
> >             );
> >             var raster = new OpenLayers.Layer.WMS(
> >                 "Defiance County Raster", geoserverDomain,
> >                 {
> >                     //width: '800',
> >                     srs: 'EPSG:4326',
> >                     layers: 'gv:county',
> >                     //height: '341',
> >                     styles: '',
> >                     format: 'image/png',
> >      transparent: 'true',
> >      attribution: "A  Service"
> >                 }
> >             );
> >             var vector = new OpenLayers.Layer.Vector(
> >        "GlobalView",
> >              {
> >              attribution:"A  Service",
> >              displayInLayerSwitcher: false
> >              }
> >             );
> >             map.addLayers([wms, raster, parcels, munic, roadcenterlines,
> > vector]);
> >             // setup controls and initial zooms
> >             map.addControl(new OpenLayers.Control.PanZoomBar());
> >             map.addControl(new OpenLayers.Control.Navigation());
> >             map.addControl(new OpenLayers.Control.Scale($('scale')));
> >     map.addControl(new OpenLayers.Control.MousePosition({element:
> > $('location')}));
> >             map.addControl(new OpenLayers.Control.LayerSwitcher());
> >             map.addControl(new OpenLayers.Control.Attribution());
> >             map.setCenter(new
> > OpenLayers.LonLat(-84.52,41.35),11,false,false);
> >
> > Has anyone encountered this?
>
> > _______________________________________________
> > Users mailing list
> > Users at openlayers.org
> > http://openlayers.org/mailman/listinfo/users
>
>
> --
> Christopher Schmidt
> MetaCarta
>
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