On Wed, Feb 18, 2009 at 4:02 AM, Hamish <[email protected]> wrote: > >> I'd like to do an interpolation of xyz data points that >> I have, and put the interpolated data on 100' x 100' >> grid. So that each 100' x 100' square has an >> associated elevation value. > > depending on how many input points you have either: > v.in.ascii, g.region res=100, v.surf.rst
Unable to achieve desired result. I has nice contour maps using following commands: ---------- v.in.ascii -z z=3 --overwrite input=survey.txt output=fieldData v.build map=fieldData g.region vect=fieldData v.surf.rst input=fieldData layer=0 elev=DTM1 r.contour input=DTM1 output=contourVec1 step=100 cut=0 r.contour input=DTM1 output=contourVec2 step=20 cut=0 d.mon x0 d.rast map=DTM1 d.vect map=contourVec1 display=shape,zcoor d.vect map=contourVec2 display=shape -------- But to have elevation on grid could not figure out parameters for v.surf.rst command. In GUI could not find input option. Can you help me by giving complete commands with options and values as per above example to have shown elevation at regular grid. I started with resolution of 1 for a size of 100x100, and for grid I can have resolution of 20. Using GRASS 6.4.0RC5 on Ubuntu 9.10 Mine data is small. Thanks in advance. -- H.S.Rai _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
