Re: [GRASS-user] Some question about r.in.xyz and r.surf.idw
Alberto wrote: I had the same problem. As Hamish told me some weeks ago, r.surf.idw and r.surf.idw2 only produce CELL (integer) maps. I solved my problem multiplying the input raster by 100 (r_bio in your case), then I interpolated with r.surf.idw and finally divided once again by 100. [depending on your needs] r.to.vect + v.surf.rst or r.surf.nnbathy (from wiki addons) will create a /much/ nicer surface than IDW methods. this explains why r.surf.idw module development is rather neglected. see also R-stats/grass interface kriging tools and v.surf.idw. I am not sure if v.surf.idw handles floating-point data or just integers, but as a total guess I'd say it would create FP output due to the vector modules generally being more recently written. Hamish ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
Re: [GRASS-user] Some question about r.in.xyz and r.surf.idw
Hi John, I had the same problem. As Hamish told me some weeks ago, r.surf.idw and r.surf.idw2 only produce CELL (integer) maps. I solved my problem multiplying the input raster by 100 (r_bio in your case), then I interpolated with r.surf.idw and finally divided once again by 100. Hope this may help you Alberto Pettazzi MeteoGalicia - Departamento de Climatología y Observación Consellería de Medio Ambiente e Desenvolvemento Sostible Rúa de Roma, 6 15707 Santiago de Compostela. A Coruña Teléfono: +34-881-999646 e-mail: alberto.petta...@meteogalicia.es mailto:alberto.petta...@meteogalicia.es Jhon Ortiz escribió: Hi all, Im working with xyz data, the range of my data is:min = 0.046000 max = 1.358000 And I'm trying interpolate with r.surf.idw, but the answer is Range of data:min = 1 max = 1 I'm working with these steps: r.in.xyz input=biomarcadores.txt output=r_bio method=mean type=FCELL fs=| x=2 y=1 z=4 zscale=1.0 percent=100 r.surf.idw input=r_bio output=r_sup_bio The problem is when I try work with decimal numbers. some advice about how I'll work with decimal numbers in this process? Thanks for your help!! John Grupo Bioestratigrafia - ICP Bogotá - Colombia Comparte tus fotos con tus amigos. Más fácil con Windows Live http://download.live.com ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
[GRASS-user] Some question about r.in.xyz and r.surf.idw
Hi all, Im working with xyz data, the range of my data is:min = 0.046000 max = 1.358000 And I'm trying interpolate with r.surf.idw, but the answer is Range of data: min = 1 max = 1 I'm working with these steps: r.in.xyz input=biomarcadores.txt output=r_bio method=mean type=FCELL fs=| x=2 y=1 z=4 zscale=1.0 percent=100 r.surf.idw input=r_bio output=r_sup_bio The problem is when I try work with decimal numbers. some advice about how I'll work with decimal numbers in this process? Thanks for your help!! John Grupo Bioestratigrafia - ICP Bogotá - Colombia _ ¿Quieres ver los mejores videos de MSN? Enciende Messenger TV http://messengertv.msn.com/mkt/es-es/default.htm___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
