Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon manual page.
NAME
r.area - Calculates area of clumped areas and remove areas smaller or greater than given threshold.KEYWORDS
raster, statistics, areaSYNOPSIS
Flags:
- -b
- Binary output
- --overwrite
- Allow output files to overwrite existing files
- --help
- Print usage summary
- --verbose
- Verbose module output
- --quiet
- Quiet module output
- --ui
- Force launching GUI dialog
Parameters:
- input=name [required]
- Name of cell category map, e.g., maps created with r.clump
- output=name [required]
- Name of output raster with categories representing area size (in cells)
- lesser=integer
- Remove areas with number of cells lower than given value (0 for none):
- Default: 0
- greater=integer
- Remove areas with number of cells greater than given value (-1 for none):
- Default: -1
Table of contents
DESCRIPTION
Module r.area reclassifies raster areas (created typically with r.clump) to values representing their size (in cells). Additionally, it can be used to remove areas smaller or greater than a treshold.
NOTE
If areas belonging to a certain category are not continuous every area belonging to the same category has the same area value.
SEE ALSO
r.clump, r.mapcalc, r.reclass.areaAUTHOR
Jarek JasiewiczSOURCE CODE
Available at: r.area source code (history)
Latest change: Mon Jun 28 07:54:09 2021 in commit: 1cfc0af029a35a5d6c7dae5ca7204d0eb85dbc55
Note: This addon document is for an older version of GRASS GIS that will be discontinued soon. You should upgrade your GRASS GIS installation, and read the current addon manual page.
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© 2003-2023 GRASS Development Team, GRASS GIS 7.8.8dev Reference Manual