[GRASS-user] bug?: v.to.db wrong area

[Pablo Carreira]

Achim, how was the grid generated? Could you put some fo the results here?


Pablo.


> Date: Mon, 7 Dec 2009 18:32:14 +0100
> From: ak7 at jupiter.uni-freiburg.de
> To: markus.metz.giswork at googlemail.com
> Subject: Re: [GRASS-user] bug?: v.to.db wrong area
> CC: grass-user at lists.osgeo.org
> 
> Hi Markus,
> 
> its the same with hectares; kilometers writes out the result in
> square-kilometers.
> 
> Achim
> 
> Markus Metz schrieb:
> > 
> > Achim Kisseler wrote:
> >> Hi,
> >>
> >> I am using
> >>
> >> v.to.db map=af_grid option=area columns=area type=centroid
> >> units=kilometers
> >>   
> > try units=hectares, kilometers are not an areal unit, don't know why
> > v.to.db executes at all
> > 
> > you can cross-check the results by querying the map
> > 
> > hope that helps,
> > 
> > Markus M
> > 
> >> (in GRASS65 opensuse 11.1 64)
> >>
> >> to calculate the area size. Some of the areas are very wrong. Its a grid
> >> in lat-lon, where areas should be nearly equal in size.
> >>
> >> Is this a known bug? I don't guess so.
> >> Do I something wrong?
> >>
> >> Thanks,
> >> Achim
> >>
> >> PS:
> >> already did v.clean, r.mask -r (<- should not be have an effect)
> >> _______________________________________________
> >> grass-user mailing list
> >> grass-user at lists.osgeo.org
> >> http://lists.osgeo.org/mailman/listinfo/grass-user
> >>
> >>   
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