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NAME

r.gradient - Create a gradient map

KEYWORDS

raster, gradient

SYNOPSIS

r.gradient
r.gradient --help
r.gradient output=name direction=string range=integer[,integer,...] [percentile=float] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

--overwrite
Allow output files to overwrite existing files
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

output=name [required]
Name for output raster map
direction=string [required]
The direction of gradient
Options: N-S, S-N, W-E, E-W, NW-SE, NE-SW
range=integer[,integer,...] [required]
Minimum and maximum values of gradient
percentile=float
Percentile to calculate (only for oblique gradient)
Options: 0-100

Table of contents

DESCRIPTION

r.gradient create a gradient map. It is able to create horizontal, vertical and oblique gradient.

EXAMPLES

To calculate vertical gradient from North to South
  r.gradient output=gradient_ns range=0,50 direction=N-S
  
To calculate horizontal gradient from East to West
  r.gradient output=gradient_ea range=10,20 direction=E-W
  
To calculate oblique gradient from North-East to South-West you have to set also the percentile option to set the slope of the gradient.
  r.gradient output=gradient_oblique range=10,20 direction=NE-SW
  

AUTHOR

Luca Delucchi, Fondazione E. Mach (Italy)

Thanks to Johannes Radinger for the code of horizontal and vertical gradient

Last changed: $Date: 2017-02-01 08:40:21 +0100 (Wed, 01 Feb 2017) $

SOURCE CODE

Available at: r.gradient source code (history)


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