[Qgis-user] Difference in Area/Perimeter calculations

[Alister Hood]

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