NAME
r.transect - Outputs raster map layer values lying along user defined transect line(s).KEYWORDS
raster, profile, transectSYNOPSIS
Flags:
- -g
- Output easting and northing in first two columns of four column output
- --help
- Print usage summary
- --verbose
- Verbose module output
- --quiet
- Quiet module output
- --ui
- Force launching GUI dialog
Parameters:
- map=name [required]
- Raster map to be queried
- line=east,north,azimuth,distance[,east,north,azimuth,distance,...] [required]
- Transect definition
- null_value=string
- String representing NULL value
- Default: *
Table of contents
DESCRIPTION
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.
NOTES
This program is a front-end to the r.profile program. It simply converts the azimuth and distance to an ending coordinate and then runs r.profile. There once were width= and result=raw|median|average options which are not currently implemented.SEE ALSO
r.profile, wxGUI profile toolAUTHOR
Michael Shapiro, U.S. Army Construction Engineering Research LaboratorySOURCE CODE
Available at: r.transect source code (history)
Latest change: Thu Feb 3 11:10:06 2022 in commit: 73413160a81ed43e7a5ca0dc16f0b56e450e9fef
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