[Users] Google Layer in Mappanel

[Christopher Schmidt]

On Tue, Feb 09, 2010 at 09:52:15PM +0100, Jacolin wrote:
> Le mardi 9 février 2010 21:32:35, Christopher Schmidt a écrit :
> > On Tue, Feb 09, 2010 at 09:25:36PM +0100, Jacolin wrote:
> > > Hi,
> > >
> > > I am testing GeoExt with a Google Layer. I copy-pasted the mappanel
> > > example and changed the layer constructor to ues a Google Layer.
> > >
> > > Unfortunately, it doesn't work, I can't pan the map, see
> > > http://softlibre.free.fr/geoext/test.php for an example.
> > 
> > That map is pannable.
> > 
> > > What is wrong?
> > 
> > Perhaps cache.
> > 
> > Regards,
> > 
> You are right, it is working in chrome, not in my Firefox :/ even after 
> disabling cache.

Ah. Chrome is broken, then. I'm using webkit, so presumably that is
similarly broken.

The problem here is that your map has a maxExtent that is tiny:

>>> mapPanel.map.baseLayer.maxExtent.toBBOX()
"-180,-90,180,90"

in projected units, that's just 400m across.

So, if we read the OL docs, we see we need:

var map = new OpenLayers.Map('map');
var layer = new OpenLayers.Layer.VirtualEarth("Virtual Earth",
 {
      sphericalMercator: true,
           maxExtent: new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34)
            });
            map.addLayer(layer);
            map.zoomToMaxExtent();


-- http://docs.openlayers.org/library/spherical_mercator.html

Set a map maxExtent, and you should be good, I expect.

> I will try again tomorrow. thanks,
> 
> Y.
> -- 
> Yves Jacolin

-- 
Christopher Schmidt
Web Developer