sure i will send that later. thks On Thu., May 9, 2019, 04:00 Micha Silver, <tsvi...@gmail.com> wrote:
> > On 08/05/2019 16:10, Moritz Lennert wrote: > > On 8/05/19 15:03, Francois Chartier wrote: > > Hi Micha, > > I have soil samples from boreholes where i have data points at every meter > interval and where soil type changes. i would like to create a weighted > average of soil property for lets say the first 1 m below the DEM, so that > i can evaluate potential for infiltration across a watershed. > > > You can use v.what.rast to read the DEM value into the attribute table of > your points. Then you can do whatever calculations you need based on that. > > Moritz > > > After Moritz's answer, It seems that your question is a data aggregation > problem. If we can see the actual structure of your data (i.e. v.info -c > or v.db.select then more specific responses might be possible. Best would > be a small subset of the actual data. > > > > > On Wed., May 8, 2019, 08:17 Moritz Lennert, <mlenn...@club.worldonline.be > <mailto:mlenn...@club.worldonline.be> <mlenn...@club.worldonline.be>> > wrote: > > On 8/05/19 14:00, Micha Silver wrote: > > You will most likely have to convert the points to raster. But > before > > that, can you explain what you mean by "located for 10 m from > DEM", "10 > > to 20". > > Or, if you mean zones of equal height, you can transform them to > vector > polygons and use v.vect.stats on these polygons and the points. > > Moritz > > > > > > > On 08/05/2019 13:31, Francois Chartier wrote: > >> Hi > >> > >> I would like to use mapcalc with types of input a DEM (raster) > and xyz > >> property (vector). basically, I would like to do a weighted > average > >> of data points located for 10 m from DEM, then 10 to 20 etc. > >> > >> _______________________________________________ > >> grass-user mailing list > >> grass-user@lists.osgeo.org <mailto:grass-user@lists.osgeo.org> > <grass-user@lists.osgeo.org> > >> https://lists.osgeo.org/mailman/listinfo/grass-user > > > > -- > > Micha Silver > > Ben Gurion Univ. > > Sde Boker, Remote Sensing Lab > > +972-523-665918 > > > > > > _______________________________________________ > > grass-user mailing list > > grass-user@lists.osgeo.org <mailto:grass-user@lists.osgeo.org> > <grass-user@lists.osgeo.org> > > https://lists.osgeo.org/mailman/listinfo/grass-user > > > > > > > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/grass-user > > -- > Micha Silver > Ben Gurion Univ. > Sde Boker, Remote Sensing Lab > cell: +972-523-665918 > >
_______________________________________________ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user