[FWTools] Trouble with OGDI Driver and FWTools

Frank Warmerdam warmerdam at pobox.com
Mon Jan 30 22:23:50 EST 2006

On 1/30/06, Ethan T. Closson <EthanC at avi.com> wrote:
> Please forgive the possible noobness of this question.  I also felt it was
> best sent here instead of the GDAL list because I think it's more a problem
> with my setting-up of FWTools.
> I'm using Windows XP and I installed FWTools with the FWTools100a8.exe from
> http://www.gdal.org/dl/fwtools/.  I am trying to write an app that can load
> some VMAP0 data.  The trouble is that whether using GDAL or OGR, it doesn't
> seem to load the OGDI driver.
> The code I have for loading and checking the drivers is the following:
> #if defined(GDAL)
>         GDALAllRegister();
>         int numDrivers = GDALGetDriverCount();
> #else
>         OGRRegisterAll();
>         int numDrivers = OGRGetDriverCount();
> #endif
>         printf("Registered Drivers:\n");
>         for(int i=0; i<numDrivers; ++i)
>         {
> #if defined(GDAL)
>                 GDALDriverH driver = GDALGetDriver(i);
>                 printf("\t%s\n",
> GDALGetDriverShortName(driver));
> #else
>                 OGRSFDriverH driver = OGRGetDriver(i);
>                 printf("\t%s\n", OGR_Dr_GetName(driver));
> #endif
>         }
> Whether I define GDAL or not, the OGDI driver is not in the output drivers
> list.
> The OGDI driver IS listed in the formats list for both "gdalinfo --formats"
> and "ogrinfo --formats" however, so I'm not sure where my app could be
> failing.  Is there some other setup stuff that I just overlooked?
> I greatly appreciate any help on this.


I don't know what is going wrong.  But I would encourage
you to be very very sure you are using the GDAL DLL
from FWTools.   If you are, there should be no way for
the OGDI driver not to appear in the list.

Good luck,
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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