On Sun, Jun 16, 2013 at 8:50 PM, Sören Gebbert <soerengebb...@googlemail.com> wrote: > Hi, > Nikos is absolutely right, the ideal candidate for spline interpolation in > time for raster maps is r.series.interp. There is no other module that > performs temporal interpolation.
r.hants does temporal interpolation, to a degree. Assuming you have e.g the raster maps tseries.1, tseries.3, tseries.5, tseries.7, tseries.9, you could create dummy tseries maps tseries.2, tseries.4, tseries.6, tseries.7 with r.mapcalc "tseries.2 = null()" etc, then r.hants in=tseries.1,tseries.2,tseries.3,tseries.4,tseries.5,tseries.6,tseries.7,tseries.8,tseries.9 with the appropriate filtering options. Markus M > > Best regards > Soeren > > > 2013/6/16 Nikos Alexandris <n...@nikosalexandris.net> >> >> Margherita Di Leo wrote: >> > Hi all! >> > >> > I need to analyse several MODIS in time, and calculate the temporal >> > spline >> > interpolation (for each pixel), then pick the values (date and value) on >> > the spline function corresponding to percentiles 25, 50, 75, maximum, >> > minimum and average. >> >> > I know that with r.series I can get max, min and average, but I can't >> > currently apply a spline interpolation. I'd like to know if in the >> > temporal >> > modules there's something to do that or I should hack the r.series in >> > order >> > to add the spline interpolation. >> >> Maybe r.series.interp is a good/the proper candidate to receive such an >> addition? >> >> Nikos >> >> > I found this >> > >> > http://docs.scipy.org/doc/scipy/reference/tutorial/interpolate.html#spline-i >> > nterpolation that >> > I can probably use for the scope. >> >> _______________________________________________ >> grass-dev mailing list >> grass-dev@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/grass-dev > > > > _______________________________________________ > grass-dev mailing list > grass-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-dev _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
