[Qgis-user] Field Calculator calculates negative area

[Lene Fischer]

Strange... when I did the calculation a second time, it also came out negative.
Your polygon my have selfcrossing??
Regards
Lene Fischer
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Fra: qgis-user-bounces at lists.osgeo.org [qgis-user-bounces at lists.osgeo.org] på vegne af magerlin [MAP at ramboll.dk]
Sendt: 25. marts 2013 16:11
Til: qgis-user at lists.osgeo.org
Emne: Re: [Qgis-user] Field Calculator calculates negative area

Just an addition..

The shape file is in UTM32N projection (epsg: 25832)



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Regards Morten

Qgis 1.8.0 Stand alone installer in Win7 64 bit
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