Thanks Peter, I was using Update Column, but only using Area() and thought the calculation type was reflected by the Map Options setting. Obviously I need to inlcude the specification in the update query. Thanks again
Christine -----Original Message----- From: Peter Horsbøll Møller [mailto:[EMAIL PROTECTED] Sent: Thursday, February 16, 2006 11:09 AM To: Ronning, Christine; mapinfo-l@lists.directionsmag.com Subject: RE: [MI-L] Area Calculations Christine, You say that you are calculating the area of some boundaries. How exactly are you doing this ? If you use Update Column, you should specify which type of area calculation you want by using either CartesianArea() or SpericalArea() in stead of Area(). Peter Horsbøll Møller GIS Developer, MTM Geographical Information & IT COWI A/S Odensevej 95 DK-5260 Odense S. Denmark Tel +45 6311 4900 Direct +45 6311 4908 Mob +45 5156 1045 Fax +45 6311 4949 E-mail [EMAIL PROTECTED] http://www.cowi.dk/gis -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ronning, Christine Sent: Thursday, February 16, 2006 7:39 PM To: mapinfo-l@lists.directionsmag.com Subject: [MI-L] Area Calculations Hi all, I'm calculating the area of some boundaries, and have noticed that when I change the Map > Options > Distance/Area using: from Spherical to Cartesian the area calculation is the same. Shouldn't it be different and does anyone know how to change this setting so it reflects the different measurement techniques? Thanks, Christine _______________________________________________ MapInfo-L mailing list MapInfo-L@lists.directionsmag.com http://www.directionsmag.com/mailman/listinfo/mapinfo-l _______________________________________________ MapInfo-L mailing list MapInfo-L@lists.directionsmag.com http://www.directionsmag.com/mailman/listinfo/mapinfo-l
