[Qgis-user] Difference in Area/Perimeter calculations

[Harish]

Yes, when ellipsoid is same, why there is a difference.

Regards

On Tue, Jul 10, 2012 at 10:57 AM, Alister Hood
<Alister.Hood at 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.om2000 at gmail.com>
> > To: Qgis-user at lists.osgeo.org
> > Subject: [Qgis-user] Difference in Area/Perimeter calculations
> > Message-ID:
> >         <CAKCjEX8-H++RBnVFF5trsKMv=
> LdqOo43bbiVAPOD6jOX2nbmmA at 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
>
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