Thanks Helen, I've been trying to make it work. I don't have ogr2ogr.exe somewhere in PostgreSQL folder. The only place where I have ogr2ogr.exe is in FWTools folder, (other ones in OSGeo4W do not work, dll problems). So I try this:
C:\Program Files\FWTools2.4.7\bin> ogr2ogr -a srs EPSG:27700 -f "ESRI Shapefile" file.shp PG:"dbname=postgis host=localhost user=postgres password=postgres" -sql "SELECT AsBinary(the_geom) as wkb_geometry FROM W_TQ2575_Buffer" After this I do not get any error message, but I get the ogr2ogr usage information (as if something I typed is wrong) and the file.shp is not created (cannot be found anywhere). Any help? ________________________________ From: Helen San Segundo Navazo <[email protected]> To: PostGIS Users Discussion <[email protected]> Sent: Wed, November 17, 2010 9:29:15 AM Subject: Re: [postgis-users] export polygon to shapefile problem Hi Thomas, I use the next expression to export data automatically in an script from a table with polygons into a shape file: ogr2ogr -a_srs EPSG:23031 -f "ESRI Shapefile" file.shp PG:"dbname=db_name host=the_host user=the_user password=the_password" -sql "SELECT AsBinary(the_geometry_column) as wkb_geometry, column2,column3,column4 etc. FROM table where conditions" I hope this will help you, Helen Thomas Kouk escribió: > > Hi all, > > I am newbie in PostGIS and I have a problem exporting a polygon table in shp. > I >want to export specific spatial tables from by database using a batch >procedure >(bat file). The command I use is: > > pgsql2shp -P [password] -f [shapefile path & name] postgis [tablename], for >example: pgsql2shp -P postgres -f Data\Buffers\ Buffer.shp postgis buffer_table > > It works fine with all other spatial tables (linestring or multilinestring >type). For polygons it also seems to work, as I get no error message: > > / Initializing... Done (postgis major version: 1)./ > > / Output shape: Polygon/ > > / Dumping: XX [1 rows]./ > > However, when I try to load the polygon shp in Qgis or ArcGIS I get an error: >ArcGIS cannot open the file, while QGIS loads the shp but displays nothing (as >if the table is empty, which is not the case). > > All my tables are spatial tables with no information on geometry_columns > table, >but even if I add the polygon table in the geometry_columns, nothing changes. >After all, the function works with all other spatial non polygon tables >despite >the fact that geometry_columns holds no information on them, so this is not >the >problem. > > I can load the postgis polygon table in qgis and export it manually to a shp, >which works fine, but I need to do it in an automatic way using a command. > > Has anyone come to this problem or is there something I do not know about >exporting polygon tables to shp? > > Thanks. > > > ------------------------------------------------------------------------ > > _______________________________________________ > postgis-users mailing list > [email protected] > http://postgis.refractions.net/mailman/listinfo/postgis-users > -- Helen San Segundo Navazo http://www.meteo.cat Tel. 93 567 60 90 Fax 93 567 61 02 A/e [email protected] <mailto:[email protected]> Abans d’imprimir aquest correu, assegureu-vos que és del tot necessari. El medi ambient és cosa de tothom! La informació d'aquesta transmissió electrònica és confidencial i el seu ús sols està permès als seus destinataris. Si Vostè no és la persona destinatària d'aquesta transmissió electrònica, li preguem que ens ho comuniqui de forma immediata i destrueixi qualsevol copia de la mateixa (tant digital com en paper). _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
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