Markus Neteler
b62c0692eb
r.param.scale manual: example fix; figure style cosmetics
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| README | 17 rokov pred | |
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README
r.param.scale
GRASS module that extracts terrain parameters from a DEM.
Uses a multi-scale approach by taking fitting quadratic
parameters to any size window (via least squares).
Jo Wood, 27th November, 1994.
-------
Modified to include constrained fitting.
Jo Wood, April, 1995
-------
Modified to include weighting matrix and double precision arithmetic.
Jo Wood, 9th May, 1995.
-------
Modified to include two separate tolerance values for feature detection.
Jo Wood, 23rd May, 1995.
-------
Still to do:
Fix bug when `constrain through central cell' option selected.
Create colour tables for all output files (presently only on features).
-------
See also Java Code in 'LandSerf' that implements the same procedure
(http://www.geog.le.ac.uk/jwo/research/LandSerf).
-------
Usage:
r.param.scale [-c] in=name out=name [s_tol=value] [c_tol=value]
[size=value] [param=name] [exp=value] [zscale=value]
Flags:
-c Constrain model through central window cell
Parameters:
in Raster surface layer to process
out Output raster layer containing morphometric parameter
s_tol Slope tolerance that defines a `flat' surface (degrees)
default: 1.0
c_tol Curvature tolerance that defines `planar' surface
default: 1.0
size Size of processing window (odd number only)
default: 3
param Morphometric parameter to calculate
options: elev,slope,aspect,profc,planc,longc,crosc,minic,maxic,
feature
default: elev
exp Exponent for distance weighting (0.0-4.0)
default: 0.0
zscale Vertical scaling factor
default: 1.0
GRASS module that extracts terrain parameters from a DEM.
Uses a multi-scale approach by taking fitting quadratic
parameters to any size window (via least squares).
Jo Wood, 27th November, 1994.
-------
Modified to include constrained fitting.
Jo Wood, April, 1995
-------
Modified to include weighting matrix and double precision arithmetic.
Jo Wood, 9th May, 1995.
-------
Modified to include two separate tolerance values for feature detection.
Jo Wood, 23rd May, 1995.
-------
Still to do:
Fix bug when `constrain through central cell' option selected.
Create colour tables for all output files (presently only on features).
-------
See also Java Code in 'LandSerf' that implements the same procedure
(http://www.geog.le.ac.uk/jwo/research/LandSerf).
-------
Usage:
r.param.scale [-c] in=name out=name [s_tol=value] [c_tol=value]
[size=value] [param=name] [exp=value] [zscale=value]
Flags:
-c Constrain model through central window cell
Parameters:
in Raster surface layer to process
out Output raster layer containing morphometric parameter
s_tol Slope tolerance that defines a `flat' surface (degrees)
default: 1.0
c_tol Curvature tolerance that defines `planar' surface
default: 1.0
size Size of processing window (odd number only)
default: 3
param Morphometric parameter to calculate
options: elev,slope,aspect,profc,planc,longc,crosc,minic,maxic,
feature
default: elev
exp Exponent for distance weighting (0.0-4.0)
default: 0.0
zscale Vertical scaling factor
default: 1.0