Yes, when ellipsoid is same, why there is a difference. Regards
On Tue, Jul 10, 2012 at 10:57 AM, Alister Hood <[email protected]>wrote: > Hi Harish, > It's a little unclear - are you asking for an explanation of why there is > a difference? > > Regards, > Alister > > > Date: Mon, 9 Jul 2012 13:03:05 +0530 > > From: Harish <[email protected]> > > To: [email protected] > > Subject: [Qgis-user] Difference in Area/Perimeter calculations > > Message-ID: > > <CAKCjEX8-H++RBnVFF5trsKMv= > [email protected]> > > Content-Type: text/plain; charset="iso-8859-1" > > > > There is difference between area/perimeter calculations with ellipsoid > and > > project CRS. Attached is a screenshot in which first area and perimeter > > columns are generated with tool 'Export/Add geometry columns' using > > 'Ellipsoid' and second area and perimeter with using 'Project CRS' (used > > 32643: UTM zone 43 North/WGS1984). > > > > Ellipsoid/Spheroid used in both cases is WGS84. > > > > QGIS1.8, Windows7. > > > > Regards > > > > > > -- > > Harish Kumar Solanki, Assistant Professor > > National Institute of Rural Development (NIRD), > > Ministry of Rural Development, Government of India > > Jaipur, Rajasthan, India- Pin-302006 >
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