NAME¶
r.le.trace - Displays the boundary of each r.le patch and shows
how the boundary is traced, displays the attribute, size, perimeter and shape
indices for each patch and saves the data in an output file.
KEYWORDS¶
raster, landscape structure analysis, patch index
SYNOPSIS¶
r.le.trace
r.le.trace help
r.le.trace [-
pt]
map=
string
[
out=
string] [--
verbose] [--
quiet]
Flags:¶
- -p
-
Include sampling area boundary as perimeter
- -t
-
Use 4 neighbor tracing instead of 8 neighbor
- --verbose
-
Verbose module output
- --quiet
-
Quiet module output
Parameters:¶
- map=string
-
Raster map to be analyzed
- out=string
-
Name of output file to store patch data
DESCRIPTION¶
The
r.le.trace module can be used to display the boundary of each
r.le patch and show how the boundary is traced, display the attribute,
size, perimeter, and shape indices for each patch, and save the data in an
output file.
NOTES¶
Full instructions can be found in the
r.le manual (see
"REFERENCES" section below) and the
r.le.setup help page.
REFERENCES¶
Baker, W.L. and Y. Cai. 1992. The r.le programs for multiscale analysis of
landscape structure using the GRASS geographical information system. Landscape
Ecology 7(4):291-302.
The
r.le manual: Quantitative analysis of landscape structures (GRASS 5;
2001)
SEE ALSO¶
r.le.patch, r.le.pixel, r.le.setup
AUTHOR¶
William L. Baker Department of Geography and Recreation University of Wyoming
Laramie, Wyoming 82071 U.S.A.
Last changed: $Date: 2009-02-04 03:03:33 +0100 (Wed, 04 Feb 2009) $
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