Getting other layers to play nicely with these third party layers involve three things, two of which we've already done:
Set up the correct map projection properties.
Make sure
sphericalMercatoris set totrueon the third party map layer.Ensure all raster layers (any non-Vector or Image layer), such as WMS, are in the map's projection. In this case, we'll need to make sure we ask our WMS server for map tiles in the
EPSG:900913projection.
Using what we learned so far, let's make a mashup. We'll use a Google Maps layer as the base layer, and WMS and Vector layers as overlay layers.