r.plane(1grass) | GRASS GIS User's Manual | r.plane(1grass) |
r.plane - Creates raster plane map given dip (inclination), aspect (azimuth) and one point.
raster, elevation
r.plane
r.plane --help
r.plane output=name dip=float
azimuth=float easting=float
northing=float elevation=float
[type=string] [--overwrite] [--help]
[--verbose] [--quiet] [--ui]
r.plane creates a tilted plane raster map given
user-specified parameters for inclination, azimuth, and the geographic
location of a point on the plane.
The angle orientations of the azimuth parameter increase
counter-clockwise, i.e., 0 degree = N, 45 degree = NW, 90 degree = W
etc.
Increasing values of the dip parameter progressively lower (or dip) the northern half of the plane, and incline the southern half, assuming the azimuth parameter is held constant at 0 degrees.
g.region -c provides the easting and northing coordinates for the center of the current region.
CELL (integer) maps take less disk space than FCELLs (floating point), which in turn take up less space than DCELLs (double precision floating point).
A tilted plane in the North Carolina sample dataset region:
# set computational region g.region raster=elev_lid792_1m -p # get center coordinates as an example g.region -c # get terrain height at point r.what map=elev_lid792_1m coordinates=638650.0,220375.0 # shows elevation: 116.7734 # generate tilted plane r.plane myplane30 dip=30 az=75 east=638650.0 north=220375.0 \
elev=116.7734 type=FCELL
Figure: Tilted plane shown in NVIZ along with elevation map
Stefan Jäger (1994), University of Heidelberg during a stay
at USGS
Updated to GRASS 5.7 by Michael Barton, Arizona State University
Full rewrite for GRASS 7 by Glynn Clements
Available at: r.plane source code (history)
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