GPSFileDepot Forums

General Category => Map Making Support => Topic started by: jj on November 28, 2009, 08:26:37 PM

Title: Water Data - Export Shape Files from Postgis Problem
Post by: jj on November 28, 2009, 08:26:37 PM
I've been working through the Water Data tutorial (thanks for that) to generate water topos in one area of Wisconsin and everything has gone fairly smoothly until I try to export the Shapefiles from postgis.  Using the DOS command suggested I get a WARNING:  Cannot determine spatial reference (empty table or unknown spatial ref) No prj file will be generated.

It must have problems with the database.  I did not get any indication of problems before this point.

If anyone has any ideas I'd appreciate it.

Thanks
Title: Re: Water Data - Export Shape Files from Postgis Problem
Post by: -Oz- on December 04, 2009, 01:29:43 AM
Not getting a .prj file isn't the end of the world.  When you bring it into the next program just know what the datum is.  In many cases its WGS 84 or a specific UTM zone.  It should be in the metadata for whereever you got the water data from.

If you're following the tutorial exactly you should have a .prj file already for the water data.