[fdo-internals] PostGIS and Spatial context question

Bruno Scott bscott at geomapgis.com
Wed Apr 9 03:50:47 EDT 2008

Forgot something
Using Mapguide Studio 2009 it works ok
See Screen capture

Bruno Scott wrote:
> PostGIS store its metadata in a table called geometry_columns
> For each of the spatialy enabled table we can specify a srid in this
> geometry_columns table.
> For PostGIS this srid is an integer that reference a coordinate system
> definition in a table called spatial_ref_sys.
> The actual implementation of the PostGIS provider that Matheus did, return
> something like
> PostGIS_SRID as spatial context ( where SRID is replaced by the proper
> srid integer )
> When i try to connect to PostGIS within Map2008 or Map2009, Map display an
> "Unknown" spatial context
> see screen capture
>  http://www.nabble.com/file/p16581335/AddDataToMap.jpg 
> Is it normal?
> How map is suppose to know how to translate a PostGIS srid to a Mentor
> one?
> Bruno

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