On Wed, May 28, 2008 at 10:06:40PM +0200, Eric Lemoine wrote: > On Tue, May 27, 2008 at 2:42 PM, Jon Blower <[EMAIL PROTECTED]> wrote: > > Hi, > > > > I have an OL2.6 application that uses base layers in different map > > projections. The map is initially constructed with a base layer in > > lat-lon (EPSG:4326). If I change the base layer to a layer in polar > > stereographic projection (EPSG:32661) the map loads a whole load (up > > to 40) of spurious tiles. This effect can be seen by loading the > > attached example web page and using Firebug (or similar) to examine > > the outgoing GetMap requests. The spurious tiles have a bounding box > > that is inappropriate for the current zoom level and map extent (this > > shows up clearly because the extents for 4326 and 32661 are very > > different in their native units). > > > > Registering an event listener for changebaselayer does not help: it > > seems that the spurious tiles are loaded anyway. > > Based on http://spatialreference.org/ref/epsg/32661/ the bounds for > 32661 are -180.0 60.0 180.0 90.0 so I don't understand the values > you're using. (That might not explain the spurious tiles you're seeing > though)
Those extents are in degrees, not projected units. Regards, -- Christopher Schmidt MetaCarta _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
