[Qgis-user] Field calculator issue

[Jonathan Moules]

Hi Carlos,
There was this issue which has been fixed in Master apparently:

http://hub.qgis.org/issues/8895

Jonathan


On 26 November 2013 13:13, Carlos Cerdán <sig.upagu at gmail.com> wrote:

> Hi list:
>
> (Maybe related with Rob Vech e-mail: strange results when calculating area
> and perimeter )
>
> I'm was trying calculate area of a layer with two polygons, but I can't
> get right values. Layer and project are in UTM 17s (epsg 32717) projection.
> I want square kilometers, so the used expression is:
>
> $area/100000
>
> Field type is real, 10 digits, 2 decimals (also tryed with 15 digits) buth
> result is wrong for one polygon and zero for second.
>
> The layer has not geometric errors (I've check it), and can be download
> from
> https://sites.google.com/site/ccerdan/Home/Cuencas_Cajamarca.zip?attredirects=0&d=1
>
> There are a field "Area_KM2" that was calculated in ArcGIS and it has the
> right values. The "Area_Ha" has the (wrong) result of QGIS field calculator.
>
> What is wrong with field calculator?
>
> UPDATE: After a reboot, field calculator found the right values... but
> What was wrong?
>
> Carlos
>
>
>
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