Hi Harish, how did you calculate the area/perimeter values? Could you provide us an excerpt of your data to test it?
giovanni 2012/7/10 Harish <harry.om2...@gmail.com> > Yes, when ellipsoid is same, why there is a difference. > > Regards > > On Tue, Jul 10, 2012 at 10:57 AM, Alister Hood <alister.h...@synergine.com > > 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 <harry.om2...@gmail.com> >> > To: Qgis-user@lists.osgeo.org >> > Subject: [Qgis-user] Difference in Area/Perimeter calculations >> > Message-ID: >> > <CAKCjEX8-H++RBnVFF5trsKMv= >> ldqoo43bbivapod6jox2nb...@mail.gmail.com> >> > 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 >> > > > > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/qgis-user > >
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