[Gvsig_english] nearest distance between points in polygons

G. Allegri giohappy at gmail.com
Mon May 30 18:16:44 CEST 2011


Another approach coul be raster distance as it is implemented in GRASS [1].
I don't know if there's a similar tool in Sextante.

giovanni

[1] http://grass.fbk.eu/grass64/manuals/html64_user/r.distance.html

2011/5/30 Wolfgang Qual <Wolfgang.Qual at gmx.net>

> Hi,
> I just made a quick test. Shapefile with 4058 entries worked (a table was
> generated), but gvSIG was getting veeeeeeeeeeeery slow, nearly
> non-responding. I looked at the command line and noticed that the dbf
> created by sextante is huge: 283MB! Maybe this is too much... (the table has
> 4058 rows _and_ 4058 coloumns. Even if -Xmx is set to a higher value...
>
>
> Best,
> Wolfgang
>
>
> -------- Original-Nachricht --------
> > Datum: Mon, 30 May 2011 08:03:42 -0700 (PDT)
> > Von: Zi <jaugustin at zi-berlin.de>
> > An: gvsig_internacional at listserv.gva.es
> > Betreff: Re: [Gvsig_english] nearest distance between points in polygons
>
> > Thanks a lot, but gvSIG can't create the distance matrix (Message: out of
> > memory error - java heap space). Are the 3645 points too much to caculate
> > the matrix?
> >
> > --
> > View this message in context:
> >
> http://osgeo-org.1803224.n2.nabble.com/nearest-distance-between-points-in-polygons-tp6418724p6419470.html
> > Sent from the gvSIG users mailing list archive at Nabble.com.
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