NAME
r.grow - Generates a raster map layer with contiguous areas grown by one cell.
KEYWORDS
raster
SYNOPSIS
r.grow
r.grow help
r.grow [-q] input=name output=name [radius=float] [metric=string] [old=integer] [new=integer] [--overwrite] [--verbose] [--quiet]
Flags:
- -q
- Quiet
- --overwrite
- Allow output files to overwrite existing files
- --verbose
- Verbose module output
- --quiet
- Quiet module output
Parameters:
- input=name
- Name of input raster map
- output=name
- Name for output raster map
- radius=float
- Radius of buffer in raster cells
- Default: 1.01
- metric=string
- Metric
- Options: euclidian,maximum,manhattan
- Default: euclidian
- old=integer
- Value to write for input cells which are non-NULL (-1 => NULL)
- new=integer
- Value to write for "grown" cells
DESCRIPTION
r.grow adds cells around the perimeters of all areas
in a user-specified raster map layer and stores the output in
a new raster map layer. The user can use it to grow by one or
more than one cell, or like r.buffer, but with the
option of preserving the original cells (similar to combining
r.buffer and r.patch).
SEE ALSO
r.buffer,
r.patch
AUTHORS
Marjorie Larson,
U.S. Army Construction Engineering Research Laboratory
Glynn Clements
Last changed: $Date: 2004-11-12 05:05:41 -0800 (Fri, 12 Nov 2004) $
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