[gdal-dev] ogr2ogr custom coordiante system

[Eli Adam]

Brian,
     
      What is the command that you tried?  If you can construct the proper proj4 format, it should work for ogr.  Exactly matching the string in PostGIS may not work and you may get a new number like 32,000 for a new SRID that was added in PostGIS.  This slightly older thread suggests one method to overcome this, http://osgeo-org.1803224.n2.nabble.com/specifiying-the-correct-SRID-when-sending-polygons-to-PostGIS-td2026555.html although I have not tried that myself.

     If you have the WKT or other format, you can get the PostGIS insert string or proj4 format through spatialreference.org, http://spatialreference.org/

HTH, Eli


>>> On 6/14/2011 at 7:33 AM, in message
<B850B3523E82404C80A8ACAC40BAFDF587524AEC at ex2010.houstonengineeringinc.com>,
Brian Fischer <bfischer at houstoneng.com> wrote:
> Hi Everyone,
> I was wondering if there are any help files or guides on how to define a 
> custom coordinate system to use with the ogr2ogr.exe utility.  I am trying to 
> use it to load a shapefile into a PostGIS database.  The shapefile is in a 
> custom Minnesota County coordinate system.  When I try to define the -a_srs I 
> get an error message that says SRID is unrecognized.  I'm assume this is 
> because both OGR and PostGIS does not have the custom SRID defined.  I've 
> also tried -1 as the SRID but the utility doesn't like that either.
> 
> How would I define the custom projection so both OGR2OGR utility and PostGIS 
> recognize it?
> 
> Regards,
> Brian
> 
> Brian Fischer, CFM  GIS Manager
> Houston Engineering, Inc.
> 6901 East Fish Lake Road, Suite 140
> Maple Grove, MN 55369
> Phone: Direct: 763-493-6664 / W: 763.493.4522 / M: 763.229.2734
> Email:  bfischer at houstoneng.com<mailto:bfischer at houstonengineeringinc.com>
> Website: www.houstoneng.com<http://www.houstonengineeringinc.com/>