[OpenLayers-Users] Switch layer from bing aerial zooming

[Yuri Roncella]

Hi everybody,

I'm trying to concatenate two layers using the zoom, like google maps
and google street view.
The first one is a bing layer and the second is hosted on geoserver.

I would use the same panZoomBar so when you try to zoom the bing layer
over the maxResolution
it automatically change the base layer to the other one.

I found this code:

aerial.events.on({
                      moveend: function(e) {
                        if(e.zoomChanged) {
                            var zoom = parseInt(map.zoom);
                            if(zoom >= 19 ){
                                   map.setBaseLayer(map.layers[0]);
                            }
                          }
                      }
                    });

It works but I can't display the last zoom view provided by bing cause
I can't modify the numZoomLevel of the bing layer (defalut is 20) and
so I don't generate a ZoomChanged event when I press the zoom In
button.
Moreover when the layer switch, the zoom bar jump from maxScale of
bing layer (level 19) to minScale of the other layer (level 4).