[Gvsig_english] computing area

[Nik Go]

I'm sorry for the completing the details. Here they are:

gvSIG version: 1.9a build 1226
gvSIG OAD edition based on v 1.1.2
OS - 64 bit Ubuntu 8.04

Surprisingly, the numbers returned by both versions are the same. The
project properties has been set to km2 already and I made no re-projections.
(Should I?) There were no internal polygons in the feature I tested.

Excuse me if these question seems basic, I'm still learning new things about
GIS in gvSIG.

Salud,
Nik




2009/2/25 Cesar Martinez Izquierdo <cesar.martinez at iver.es>

> Hello Nik,
>
> It is necessary that you provide some details when you report a problem,
> otherwise it's impossible to find the problem.
>
> Which version of gvSIG are you using?
> Which CRS have set in the view? And in the layer? Which measurement units
> did you set?
>
> Regards,
>
>  César
>
> Nik Go escribió:
>
>> I'm trying to determine the total area of features but the area() function
>> of the field calculator are returning numbers that are off the real-world
>> sizes. I have real-world numbers for comparison. (Calculator returns
>> 0.122893 km^2 when the actual size is 1,483.38 km^2 )
>>
>> Am I doing anything wrong?
>>
>>
>> ------------------------------------------------------------------------
>>
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>
>
> --
> César Martínez Izquierdo
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