- Outputs raster map layer values lying along user defined transect line(s).
r.transect [-g] map=name line=east,north,azimuth,distance[,east,north,azimuth,distance,...] [null_value=string] [--help] [--verbose] [--quiet] [--ui]
- Output easting and northing in first two columns of four column output
- Print usage summary
- Verbose module output
- Quiet module output
- Force launching GUI dialog
- map=name [required]
- Raster map to be queried
- line=east,north,azimuth,distance[,east,north,azimuth,distance,...] [required]
- Transect definition
- String representing NULL value
- Default: *
This program outputs, in ASCII, the values in a raster map
which lie along one or more user-defined transect lines.
The transects are described by their starting coordinates,
azimuth, and distance.
The line parameter is a definition of (each) transect line,
specified by the geographic coordinates of its starting point (easting,
northing), the angle and direction of its travel (azimuth),
and its distance (distance).
The azimuth is an angle, in degrees, measured to
the east of north. The distance is in map units
(meters for a metered database, like UTM).
The null parameter can optionally be set to change the character
string representing null values.
This program is a front-end to the
program. It simply converts the
azimuth and distance to an ending coordinate and then runs
There once were width=
options which are not currently implemented.
wxGUI profile tool
Michael Shapiro, U.S. Army Construction Engineering Research Laboratory
r.transect source code
Latest change: Thu Feb 3 11:10:06 2022 in commit: 73413160a81ed43e7a5ca0dc16f0b56e450e9fef
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GRASS Development Team,
GRASS GIS 8.0.3dev Reference Manual