NAME

r.grow - Generates a raster map layerwith contiguous areas grown by one cell.

SYNOPSIS

r.grow
r.grow help
r.grow [-q] input=string output=string [radius=float] [metric=string] [old=integer] [new=integer]

Flags:

-q
Quiet

Parameters:

input=string
Name of existing input raster file
output=string
Name of output raster file
radius=float
Radius of buffer
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 13:05:41 $


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