On 16/03/2019 21:24, Francois Chartier wrote: > I thought Zscale was used to convert units ft to m, i didnt know it was > for giving more weight to one direction.
That's only one application case. The manual page goes on: 'Rescaling of z-coordinates (zscale) is also needed when the distances in vertical direction are much smaller than the horizontal distances ..' That is equivalent to what you are looking for: instead of assuming that a process works slower or faster in the Z direction (anisotropy), you could also assume the speed is the same but the Z distance is shorter/longer, no? If I understand the manual page correctly, then 'zscale' only rescales Z values during interpolation, but the original coordinates are preserved in the voxel output. Why not just experiment and check if it produces a useful result? Cheers, Ben > > Le sam. 16 mars 2019 à 15:20, Benjamin Ducke <bendu...@fastmail.fm > <mailto:bendu...@fastmail.fm>> a écrit : > > On 16/03/2019 19:51, Francois Chartier wrote: > > Hi, > > > > Is it possible to add anisotropy when conducting interpolation for 3D > > raster. I would like to give more weight horizontally than vertically > > in the 3D interpolation process. > > 'v.vol.rst' has an option 'zscale'. > Is that not what you are looking for? > > Best, > > Benjamin > > > > > thanks, > > > > _______________________________________________ > > grass-user mailing list > > grass-user@lists.osgeo.org <mailto:grass-user@lists.osgeo.org> > > https://lists.osgeo.org/mailman/listinfo/grass-user > > > > > > -- > Dr. Benjamin Ducke > Deutsches Archäologisches Institut (DAI) > Zentrale Berlin, IT-Referat > > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org <mailto:grass-user@lists.osgeo.org> > https://lists.osgeo.org/mailman/listinfo/grass-user > -- Dr. Benjamin Ducke Deutsches Archäologisches Institut (DAI) Zentrale Berlin, IT-Referat _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/grass-user