[udig-devel] Single UDig Layer with Multipe WMS Layers

[Joe Dente]

Hi,

 

Is it possible to fetch multiple WMS layers merged into a single
IGeoResource?  

 

I have UDig connected to a WMS server on Geotools.  I construct my
layers by first adding the WMS server to the catalog and then using
ICatalog.getById() to retrieve layers from the WMS server.  This works
well for adding IGeoResources to my map one at a time.  I would like to
fetch multiple layers in a single request so that Geoserver can do all
of the work involved in merging multiple WMS images into a single image.
For example, with openMap I can use
http://localhost:8080/geoserver/wms?&request=GetMap&layers=tiger:poly_la
ndmarks,tiger:tiger_roads to retrieve multiple layers with a single
request, so that openMap only receives a single image representing both
layers; all of the calculations involving features and combining the two
layers into a single image are performed by the non-client computer
hosting Geoserver.  I would like to do something similar with UDig while
interacting with the catalog containing my WMS.

 

Is this possible?

 

Thanks in advance,

Joe

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