[GRASS-user] Query vector type has problems

[Anna Petrášová]

Hi,

On Thu, Jul 30, 2015 at 12:06 PM, Andres Kuusk <andres at to.ee> wrote:

>
>
> Hello!
>
> Vector commands v.what.vect and v.distance do not fill the attribute
> column of a point vector.
>
> I created small test vectors, a vector map 'varea' of area type which has
> an area polygon, and a vector map of points 'vpoints' - 191 GPS way-points,
> 135 of which are inside the polygon.
>
> The command
>
> v.what.vect map=vpoints column=aid query_map=varea query_column=aid
>
> returns:
>
> Finding nearest features...
> Update vector attributes...
> 191 categories - no nearest feature found
>

I tried similar example, but it seems to work for me, perhaps you could
send us reproducible example which uses North Carolina sample datatset?

Thank you,

Anna


> The same result I get using v.distance:
>
> v.distance from=vpoints to=varea dmax=0. upload=to_attr column=aid
> to_column=aid
>
> Finding nearest features...
> Update vector attributes...
> 191 categories - no nearest feature found
>
> If I omit the option 'dmax=0.' all points get the attribute 'aid', also
> the points outside the polygon.
> Both vectors have several columns in the table of attributes.
>
>
> The OS is OpenSUSE-13.1, 3.11.10-25-desktop, x86_64.
> The problem is there in:
>
> GRASS-7.0.0-2.42 from the repository
> http://download.opensuse.org/repositories/Application:/Geo/openSUSE_13.1
>
> GRASS-7.1 SVN r65785M
> (GRASS GIS 7.1.svn r65785M compilation log: No errors detected.)
>
> GRASS-7.0 SVN r58582.
>
> An old svn-version of 7.0 did the work (r51370):
> v.what.vect ...
> Finding nearest feature..
> Finding nearest areas...
> Update vector attributes...
> 2837 categories - no nearest feature found
> 23679 categories read from the map
> 23679 categories exist in the table
> 23679 categories read from the map exist in the table
> v.distance complete. 23679 records updated.
>
> 20842 points have got the attribute.
>
>
> Andres Kuusk
> Tartu Observatory, Estonia
> _______________________________________________
> grass-user mailing list
> grass-user at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/grass-user
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/grass-user/attachments/20150731/3df56a67/attachment.html>