Tom, sorry for the late reply.
On Mon, Sep 8, 2014 at 10:37 AM, <[email protected]> wrote: > Hello, > > Using Grass 6.4.4 on Windows 7 on one computer and on Windows XP on > another computer, we are only getting elevations to the horizon of > 0.00000,-0.000000 at all angles. We are using the elevation models > included in the demonstration sites for North Carolina and South Dakota. > Tried many combinations of input and always receive the zeros as the > answer. In one case, I tried putting in the same input as in the manual > page for r.horizon: > > r.horizon elevin=elevation direction=215 horizonstep=0 bufferzone=200 > coord=638871.6,223384.4 > > Still produces zeros. Any ideas? Are you sure that the computational region was right? I get results: GRASS 6.4.4svn (nc_spm_08):~ > g.region rast=elevation -p projection: 99 (Lambert Conformal Conic) zone: 0 datum: nad83 ellipsoid: a=6378137 es=0.006694380022900787 north: 228500 south: 215000 west: 630000 east: 645000 nsres: 10 ewres: 10 rows: 1350 cols: 1500 cells: 2025000 GRASS 6.4.4svn (nc_spm_08):~ > r.horizon elevin=elevation direction=215 horizonstep=0 bufferzone=200 coord=638871.6,223384.4 215.000000, 0.068388 GRASS 7.0.0svn (nc_spm_08_grass7):~ > g.region rast=elevation -p projection: 99 (Lambert Conformal Conic) zone: 0 datum: nad83 ellipsoid: a=6378137 es=0.006694380022900787 north: 228500 south: 215000 west: 630000 east: 645000 nsres: 10 ewres: 10 rows: 1350 cols: 1500 cells: 2025000 GRASS 7.0.0svn (nc_spm_08_grass7):~ > r.horizon elevin=elevation direction=215 horizonstep=0 bufferzone=200 coord=638871.6,223384.4 azimuth,horizon_height 215.000000,0.068388 Markus _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
