[gdal-dev] Detecting type of SDTS file?

[Frank Warmerdam]

Ben Discoe wrote:
> 
> When somebody does a drag-and-drop of an SDTS file (*catd.ddf) into my
> application, i need to quickly find out if it is a SDTS-DEM (in which case i
> will load it with GDAL) or an SDTS-DLG (in which case i will load it with
> OGR).
> 
> Is there any way to do this simply, short of the full process of attempting
> to load the file with both GDAL and OGR and testing which operation fails?
> 
> -Ben

Ben, 

If there is an XXXRSDF.DDF (or xxxxrsdf.ddf) file then it is a raster transfer, 
otherwise it is likely a vector transfer. 

Best regards,

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