Sorry everyone - please ignore my previous emails. It appears I need to
RTFM... well the most recent manual at least!
For the record ogr2ogr *can* now convert simple features GML into
PostGIS. I even found a helpful tutorial to assist:
http://cse-mjmcl.cse.bris.ac.uk/blog/2006/05/27/1148737394599.html
Why is it that you can Google a topic for hours, then only find the
answer 10mins after posting to a mailing list?
Many thanks
Peter
Peter Brewer wrote:
Martin,
Thanks for the prompt reply.
The schema is being developed and is open to suggestions. At the
moment we are keeping it ultra simple and just specifying the
following element in the relevant locations:
....snip....
<xs:element name="locationGeometry">
<xs:complexType>
<xs:choice>
<xs:element ref="gml:Point"/>
<xs:element ref="gml:Polygon"/>
</xs:choice>
</xs:complexType>
</xs:element>
....snip....
The full schema is at: http://tridas.org/1.0/tridas.xsd
I know it would be pretty simple to parse gml:Point and gml:Polygon
myself, but I'd rather not reinvent the wheel. Besides, I imagine
that in the future we'll extend the schema to support full SF-GML so I
was hoping someone would have already written a SF-GML>PostGIS converter.
Best wishes
Peter
Martin Davis wrote:
Do you have a fixed schema? Can you post an example GML document?
Peter Brewer wrote:
Hi All,
I'm writing a webservice that reads and writes (amongst other things)
location data to/from a Postgres/PostGIS database.
Outputting the data as GML from the database is easy using the asGML()
PostGIS function. What I'm pondering over is how to write data to the
database when sent by the user in GML format.
GDAL/OGR doesn't seem to allow GML > PostGIS conversion. Any ideas how
I can do this? I'm restricting users to the 'Simple Features'
subset of
GML so I only need to be able to write points, lines and polygons to
the
database. Am I really stuck with parsing the GML myself and writing
PostGIS SQL statements? It doesn't seem enormously difficult so I'm
wondering why there isn't a library to do this already.
Any help or pointers much appreciated
Cheers
Peter
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