[GRASSLIST:3738] Re: problem import shape file

[Radim Blazek]

On Thursday 23 May 2002 08:55 pm, Marco Kienzle wrote:
> Hi,
>
> I am having many problems trying to import a .shp file (from ESRI) using
> v.in.shape command although if the input file is a simple grid. The
> problem is that in the resulting file many polygons have a area equal to
> zero ??
>
> I import the file with the following commands:
>
> v.in.shape -o input=/home/kienzle/GIS/GRASS/poubelle/icesshape.shp
> attribute=JOIN label=ICESSQ
>
> Receive many of the following warnings:
>
> WARNING: area 375 label: 1059 matched another label: 1059.
> WARNING: area 406 label: 1060 matched another label: 1060.
> WARNING: area 437 label: 1061 matched another label: 1061.
> WARNING: area 468 label: 1062 matched another label: 1062.
> WARNING: area 499 label: 1063 matched another label: 1063.
> WARNING: area 530 label: 1064 matched another label: 1064.
>
>
> And then check for the result with
> v.report map=icesshape type=area units=k
>
>
> Am I doing something wrong ? Is there something wrong in the original
> file (although it works under ARC-INFO)?
>
> thanks in advance,
> marco

I tested. Import without errors, v.support:
Number of lines:   2660
 Number of nodes:   1365
 Number of areas:   1296
 Number of isles:   1
 Number of atts :   1296
 Number of unattached atts :   0
 Snapped lines  :   0

v.report : all areas > 0, with the same value.


Radim