Hi

 

I use OL with GeoServer and Apache web server (right now on localhost).  I
want help clarifying my understanding of how projections work with
OpenLayers:

 

-          If the layer projection is different from the map projection then
the layer will be automatically re-projected.  Correct?

-          Without GeoServer the re-projection is done on the client side by
OL - vector layers but not images.  Correct?

-          With GeoServer the re-projection is done on the server side -
both vector and images (but images are slow).  Correct?

 

So if I want to offer both Google base layers (requires map projection of
900913) and other base layers (not in 900913), then it can be done with
OL/GeoServer, but the re-projection of the non-Google images is slow.  To
speed things up, would it possible to change the map projection on the fly
to match the new base layer?

 

Thanks,

 

Nigel

 

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