[fdo-users] FDO ODBC X Y column names

lucvanlinden luc.vanlinden at gmail.com
Fri Sep 26 03:17:01 EDT 2008


I have a question on the FDO for ODBC and the "config" of the X, Y columns.

OSGeo FDO Provider for ODBC

Metadata, which maps the table name, and X, Y, and optionally, Z columns to
a feature class, is optionally maintained outside the database in a
configuration file. This information, in conjunction with the table
structure in the database, provides the definition of the feature class.

The schema configuration of the data store is provided to the FDO Provider
for ODBC through an optional XML file containing the Geographic Markup
Language (GML) definition of the schema that maps ‘tables’ and ‘columns’ in
the data store to feature classes and property mappings in the FDO data

Is there more info available how to pass such metadata file to the provider?
How it should look like?

I noticed in AutoCAD Map the user can interactivally select these X, Y
column name through the interface. does anyone know how these are passed on
to the provider? Is this the creation of this metadat file on the fly?


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