[gdal-dev] Reprojecting shapefile

[Frank Warmerdam]

Mullins, Steven wrote:
> I am reading point data via a VRT file from a sql server and converting to a shapefile.  This works great.  The X and Y coordinates are read from the SQL data columns.  The shapefiles are reprojected but the X and Y datafields are not updated.  I understand why they are not, since they are not spatial data in the shapefile sense.  However, I would like them to match the reprojected coordinates.  Any suggestions?
> 
> Thanks,
> 
> Steve
> 
> VRT FILE (geology-all.ovf):
> 
> <OGRVRTDataSource>
>     <OGRVRTLayer name="geology-all">
>       <SrcDataSource>ODBC:xxx/xxxxxxxxx at xxxx</SrcDataSource>  
> 	<GeometryType>wkbPoint</GeometryType>
> 	<SrcSQL>
> 	  SELECT dmlrpermits_geopoints.keyPeGeoPoints, PeNo, PeGeoLoc, PeGeoElevation,
> 	   PeGeoAnalysis, PeGeoShared 
> 	  from dmlrpermits_geopoints
> 	</SrcSQL> 
>       <LayerSRS>PROJCS["NAD27 / Virginia South",
>     	  GEOGCS["NAD27",
>         DATUM["North_American_Datum_1927",
>         SPHEROID["Clarke 1866",6378206.4,294.9786982139103,
>         AUTHORITY["EPSG","7008"]],
>         AUTHORITY["EPSG","6267"]],
>         PRIMEM["Greenwich",0,
>         AUTHORITY["EPSG","8901"]],
>         UNIT["degree",0.01745329251994328,
>         AUTHORITY["EPSG","9122"]],
>         AUTHORITY["EPSG","4267"]],
>     	  PROJECTION["Lambert_Conformal_Conic_2SP"],
>     	  PARAMETER["standard_parallel_1",36.76666666666667],
>         PARAMETER["standard_parallel_2",37.96666666666667],
>         PARAMETER["latitude_of_origin",36.33333333333334],
>         PARAMETER["central_meridian",-78.5],
>         PARAMETER["false_easting",2000000],
>         PARAMETER["false_northing",0],
>         UNIT["US survey foot",0.3048006096012192,
>         AUTHORITY["EPSG","9003"]],
>         AUTHORITY["EPSG","32047"]]
>       </LayerSRS>
> 	<GeometryField encoding="PointFromColumns" x="PeGeoEasting" y="PeGeoNorthing"/> 
>     </OGRVRTLayer>
> </OGRVRTDataSource>
> 
> 
> Command:
> 
> ogr2ogr -f "ESRI Shapefile"  -t_srs 83.wkt geo geology-all.ovf

Steven,

The only solution I can see is to write a script to copy the values
back into the attributes.

Best regards,
-- 
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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    | President OSGeo, http://osgeo.org