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
r.gradient create a gradient map. It is able to create
horizontal, vertical and oblique gradient.
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
Luca Delucchi, Fondazione E. Mach (Italy)
Thanks to Johannes Radinger for the code of horizontal and vertical gradient
SOURCE CODE
Available at:
r.gradient source code
(history)
Latest change: Thursday Feb 03 09:32:35 2022 in commit: f17c792f5de56c64ecfbe63ec315307872cf9d5c
Main index |
Raster index |
Topics index |
Keywords index |
Graphical index |
Full index
© 2003-2023
GRASS Development Team,
GRASS GIS 8.2.2dev Reference Manual