Emilio Mayorga wrote:
Thanks, Frank!! I got it to work on a Windows box with GDAL/OGR 1.2.5 (from FWTools 0.9.6). BTW, I think the MapServer or OGR documentation regarding VRT access from file data sources (like this case) is lacking. The ovf file I created is included at the bottom, with two layers that correspond to two dbf files. The layer name is the base file name of the dbf file, w/o the extension. The data source is the path to the folder. Anything different I tried didn't work. I'll try to edit the MapServer document "Virtual Spatial Data (ODBC/OVF)" to include this example.
Emilio, Well, there are indeed many deficiencies in GDAL/OGR and MapServer documentation. The assistance of you, and other community members is critical in improving the documentation, so thanks for your willingness to dig in!
Now I have a different problem. I'm running MapServer 4.0 on a Linux box with OGR 1.1.9. I read that OVF was introduced in OGR 1.2.0 (and in fact, my ogr2ogr line can't handle the ovf file!). Given my old MapServer, do you think it'd be safe to upgrade GDAL/OGR to the latest version without upgrading MapServer (I don't want to deal with all the dependencies just yet)?
Note that while OVF (which I call OGR VRT) support may have been introduced in 1.2.0, there were also numerous fixes and improvements in the facility right through to 1.3.1. To answer your question, I believe MapServer 4.0 should work just fine with GDAL/OGR 1.3.1. While I respect your need to manage risk in upgrading, it is generally hard to support people using significantly old versions of the software. When answering I certainly never thought you might be running such old versions of MapServer or GDAL/OGR. So, I would encourage you to upgrade to the latest stable release of things when you can if you are hoping for assistance, or bug fixes. Best regards, -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, [EMAIL PROTECTED] light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | President OSGF, http://osgeo.org
