[Gdal-dev] ogr2ogr Unable to open datasource

[Ryan Ollerenshaw]

>
> Frank Warmerdam wrote:
>> Ryan Ollerenshaw wrote:
>>> Thank you for the help but the documentation for using an OGR VRT 
>>> file does not seem to be clear.  I created a ovf file (see below) 
>>> and ran
>>> # ogr2ogr -f "ESRI Shapefile" thick18.shp thick18.cvs
>>> but still no change only a dbf file is created.  I do not see in the 
>>> VRT documentation how to use the ovf file.
>>>
>>> Resources I have found:
>>> http://gdal.maptools.org/ogr/drv_vrt.html
>>> http://mapserver.gis.umn.edu/docs/reference/vector_data/VirtualSpatialData 
>>>
>>
>> Ryan,
>>
>> You would use the .ovf file as the input file.
>>
>> eg.
>> ogr2ogr -f "ESRI Shapefile" thick18.shp thick18.ovf
>>
>> The OGR VRT driver will then open the referenced .csv file, and 
>> transform
>> the features read from it to have a spatial component.
> Still not quite there, when i try to use the ovf file as my input i 
> get the following error, i also tried to name my input file .vrt but 
> still the same error.
>
> FAILURE:
> Unable to open datasource `E:\Ryan\solid_earth\thick18.ovf' with the 
> following drivers.
>  -> ESRI Shapefile
>  -> UK .NTF
>  -> SDTS
>  -> TIGER
>  -> S57
>  -> MapInfo File
>  -> DGN
>  -> VRT
>  -> AVCBin
>  -> REC
>  -> Memory
>  -> CSV
>  -> GML
>  -> SQLite
>  -> ODBC
>  -> OGDI
>  -> PostgreSQL
>  -> FMEObjects Gateway
>
> ovf file:
> <OGRVRTDataSource>
>        <OGRVRTLayer  name="thick18">
>        <SrcDataSource>thick18</SrcDataSource>
>        <SrcLayer>E:\Ryan\solid_earth</SrcLayer>
>        <GeometryField encoding="PointFromColumns" x="long" y="lat"/>
>        <GeometryType>wkbPoint</GeometryType>
>        </OGRVRTLayer>
> </OGRVRTDataSource>
>

Ok i got it the problem was in my ovf file, correct format for use with 
a cvs file is:
<OGRVRTDataSource>
        <OGRVRTLayer  name="thick18">
        <SrcDataSource>E:\Ryan\solid_earth\thick18.csv</SrcDataSource>
        <SrcLayer>thick18</SrcLayer>
        <GeometryField encoding="PointFromColumns" x="long" y="lat"/>
        <GeometryType>wkbPoint</GeometryType>
        </OGRVRTLayer>
</OGRVRTDataSource>

thanks for your help!