Hey- Currently, when a new base layer is set, we determine the new resolution based on the previous map extent. An alternative would be to determine the new resolution based on the previous scale. Preserving center and scale makes better sense to me. I'm curious what others think.
The resolution based on extent method breaks down when extents are not well defined. E.g. with an extent that wraps the date line. To see this break-down in action, follow these steps: 1) open http://openlayers.org/dev/examples/google.html 2) click to zoom all the way out (you'll see multiple worlds) 3) open the switcher and change base layers You should see the scale change. Apply the patch for http://trac.openlayers.org/ticket/2457 and you should see better behavior. Thanks for any feedback. Tim -- Tim Schaub OpenGeo - http://opengeo.org Expert service straight from the developers. _______________________________________________ Dev mailing list Dev@openlayers.org http://openlayers.org/mailman/listinfo/dev
