Martin Landa 22e3e2d77b replace GR_FATAL_* (rasters), GV_FATAL_* (vectors) by G_FATAL_* 13 tahun lalu
..
CHANGES db49180dd7 welcome to GRASS 7.0.svn 17 tahun lalu
Makefile d6700ffb2c Update LIBES, DEPENDENCIES from linkage database 15 tahun lalu
README db49180dd7 welcome to GRASS 7.0.svn 17 tahun lalu
close_down.c 6c41b6394b Re-write raster history implementation 15 tahun lalu
cols.sh db49180dd7 welcome to GRASS 7.0.svn 17 tahun lalu
disp_matrix.c 8868d4b686 indent -bad -bap -bbb -br -bli0 -bls -cli0 -ncs -fc1 -hnl -i4 \ 17 tahun lalu
feature.c 8868d4b686 indent -bad -bap -bbb -br -bli0 -bls -cli0 -ncs -fc1 -hnl -i4 \ 17 tahun lalu
find_normal.c 8868d4b686 indent -bad -bap -bbb -br -bli0 -bls -cli0 -ncs -fc1 -hnl -i4 \ 17 tahun lalu
interface.c 22e3e2d77b replace GR_FATAL_* (rasters), GV_FATAL_* (vectors) by G_FATAL_* 13 tahun lalu
main.c 208dc8c324 more metadata (merge from devbr6) 16 tahun lalu
nrutil.c cef093c56b Don't include <grass/raster.h> where not needed 16 tahun lalu
nrutil.h 8868d4b686 indent -bad -bap -bbb -br -bli0 -bls -cli0 -ncs -fc1 -hnl -i4 \ 17 tahun lalu
open_files.c d2b26275a0 No need to check return value from Rast_open_* 15 tahun lalu
param.c 208dc8c324 more metadata (merge from devbr6) 16 tahun lalu
param.h c66ce150bb rasterlib: prototypes moved to rasterdefs.h 16 tahun lalu
param.sh db49180dd7 welcome to GRASS 7.0.svn 17 tahun lalu
process.c df4d81abd4 Move raster-specific functions from lib/gis to lib/raster: 15 tahun lalu
r.param.scale.html e437cd9f59 avoid caps HTML tags 13 tahun lalu
r_param_scale_morph.jpg a2934553ff screenshot added 16 tahun lalu
write_cats.c 87cfda0cca More error handling: 15 tahun lalu
write_cols.c 793139729e rasterlib: fns from color_rule.c renamed, see 16 tahun lalu

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.

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Modified to include constrained fitting.

Jo Wood, April, 1995

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Modified to include weighting matrix and double precision arithmetic.

Jo Wood, 9th May, 1995.

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Modified to include two separate tolerance values for feature detection.

Jo Wood, 23rd May, 1995.


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Still to do:
Fix bug when `constrain through central cell' option selected.
Create colour tables for all output files (presently only on features).

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See also Java Code in 'LandSerf' that implements the same procedure
(http://www.geog.le.ac.uk/jwo/research/LandSerf).

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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