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r.soils.texture - Define soil texture from sand and clay grid.


raster, soil, texture


r.soils.texture --help
r.soils.texture sand=name clay=name scheme=name output=name [--overwrite] [--help] [--verbose] [--quiet] [--ui]


Allow output files to overwrite existing files
Print usage summary
Verbose module output
Quiet module output
Force launching GUI dialog


sand=name [required]
Name of input sand map [0-100]
clay=name [required]
Name of input clay map [0-100]
scheme=name [required]
Text file with texture scheme
output=name [required]
Name for output raster map

Table of contents


r.soils.texture define soils texture from sand and clay distribution grid and a texture scheme definition.
Sand and clay grid are simple grid theme; scheme file is text ASCII file with *.dat extention like USDA.dat, FAO.dat and nternational.dat supplied with source code module in scheme directory. You can download *.dat files from the GRASS GIS addons repository


GRASS 8 Programmer's Manual


Bourke P., 1987 Determining if a point lies on the interior of a polygon. Downloaded printed

Neteler M. and H. Mitasova 2004 Open Source GIS: A GRASS GIS Approach - Kluwer Academic Publisher/Springer, Boston, -Second edition ISBN: 1-4020-8064-6

Sanesi G., 2000 - Elementi di pedologia - Edagricole, Bologna

Texture AutoLookup (TAL) ver 4.2, 2002

Van Rossum G. - 2005 - Manuale di riferimento di python - Ed. Italiana, Fred L. Drake, Jr., editor

WATTON J. D., 1997 - Comparing C, Fortran, Lisp, java, python, perl, scheme (guile), and tcl using a floating point numerical test - point inside polygon. Applied mathematics and computer technology center alcoa technical center. Distribution documents.


Gianluca Massei (


Available at: r.soils.texture source code (history)

Latest change: Monday Jan 30 19:52:26 2023 in commit: cac8d9d848299297977d1315b7e90cc3f7698730

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