[mapguide-users] Coordinate System Overrides

[nate_tate]

Hello fellow GIS,  I'm new at using MG opensource and Maestro, so still
trying to get use to it. I would like to ask for some help or pointers.  I
have an Oracle db setup and Maestro is connected to it and reads/see the
spatial tables. In the oracle db, the source SRID that is set up on the
spatial tables is 4326 and 8307, which is equivalent to each other.(see
screenshot).
<http://osgeo-org.1560.x6.nabble.com/file/n5325772/before_override.jpg> 

I use the edit tool to override the source 4326 and 8307 SRID into 3857(see
screenshot2).
<http://osgeo-org.1560.x6.nabble.com/file/n5325772/after_override.jpg> 

I am planning to use Openstreet map and or Google map as the base map and
overlay the spatial tables in Oracle on top of it. Hence the overrides to
use SRID 3857 which is the same as 900913 that OSM and Google map uses.  I
guess my concern  is that will this method work as far as the vector layer
from Oracle will fall/overlay on top of the base map correctly?  Is this a
reasonable sound approach?  

Thanks,




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