d.param.scale <contribGRASS Reference Manu<contrib> d.param.scale



NAME
     d.param.scale  - Calculates surface parameters and features
     from a DEM and displays them in GRASS monitor. It allows
     interactive indentification of terrain parameters and
     features with a mouse. Reports membership classes for
     variable window sizes and their variance or entropy.
     (GRASS Raster Program)

SYNOPSIS
     d.param.scale
     d.param.scale help
     d.param.scale [-c] [-f] [-t] in=name out=name [s_tol=value]
     [c_tol=value] [size=value] [param=name]  [exp=value]
     [zscale=value]

DESCRIPTION
     The GRASS program d.param.scale can be used to identify
     interactively terrain parameters and features with a mouse.
     Reports membership classes for variable window sizes and
     their variance or entropy.

PROGRAM OPTIONS
     d.param.scale can be run either non-interactively or
     interactively.  In non-interactive use, the user must
     specify the name of the raster map layer to be used for
     input on the command line, using the form in=name (where the
     name is the name of a raster map layer to be input.

Flags:
     If set, d.param.scale  constrains model through central
     window cell If set, d.param.scale	fixes the axis scale If
     set, d.param.scale creates text output of results

Parameters:
     that defines a `flat' surface (degrees) - default: 1.0
     surface -	default: 1.0 processing window (odd number only)
     - default: 15 elev, slope, aspect, profc, planc, longc,
     crosc, minic, maxic, feature, resid, moran, geary - default:
     elev (0.0-4.0) 1 implies a linear decay, 2 an inverse
     distance squared decay  - default: 0.0 (no distance decay).
     With:

	  elev:	    Generalised elevation value.
	  slope:    Maximum gradient at a point.
	  aspect:   Direction of maximum gradient.
	  profc:    Profile convexity (vertical in direction of
     steepest slope).
	  planc:    Plan convexity (contour curvature).
	  crosc:    Cross sectional convexity (tangent to
     contours, downslope).
	  longc:    Longitudinal convexity (perpendicular to
     contours downslope).



GRASS 5.0beta6	      GRASS Development Team			1






d.param.scale <contribGRASS Reference Manu<contrib> d.param.scale



	  minic:    Minimum convexity.
	  maxic:    Maximum convexity.
	  feature:  Morphometric features:
		      peaks, ridges, passes, channels, pits and
     planes.
	  resid:
	  moran: Moran statistics
	  geary:


SEE ALSO
     r.param.scale
     parser

AUTHOR
     Jo Wood, PROJECT ASSIST,

     Department of Geography, University of Leicester

REFERENCE
     Wood, J. (1996): The Geomorphological characterisation of
     Digital Elevation Models. Diss., Department of Geography,
     University of Leicester, U.K.

     online at:

     www.geog.le.ac.uk/jwo/research/dem_char/thesis/index.html

NOTICE
     This program is part of the contrib section of the GRASS
     distribution.  As such, it is externally contributed code
     that has not been examined or tested by the Office of GRASS
     Integration.






















2		      GRASS Development Team	   GRASS 5.0beta6