t.rast3d.algebra(1grass) GRASS GIS User's Manual t.rast3d.algebra(1grass)
NAME
t.rast3d.algebra - Apply temporal and spatial operations on space time
3D raster datasets using temporal 3D raster algebra.
KEYWORDS
temporal, algebra, raster3d, voxel, time
SYNOPSIS
t.rast3d.algebra
t.rast3d.algebra --help
t.rast3d.algebra [-sng] expression=string basename=string [nprocs=in-
teger] [--help] [--verbose] [--quiet] [--ui]
Flags:
-s
Check the spatial topology of temporally related maps and process
only spatially related maps
-n
Register Null maps
-g
Use granularity sampling instead of the temporal topology approach
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog
Parameters:
expression=string [required]
Algebraic expression for temporal and spatial analysis of space
time 3D raster datasets
basename=string [required]
Basename of the new generated output maps
A numerical suffix separated by an underscore will be attached to
create a unique identifier
nprocs=integer
Number of r3.mapcalc processes to run in parallel
Default: 1
DESCRIPTION
t.rast3d.algebra performs temporal and spatial map algebra operations
on space time 3D raster datasets (STR3DS) by using the temporal 3D
raster algebra.
NOTES
The module expects an expression as input parameter in the following
form:
"result = expression"
The statement structure is exact the same as of t.rast.algebra, see
t.rast.algebra but allows four-dimensional indexing.
SEE ALSO
t.rast.algebra t.rast3d.mapcalc r.mapcalc t.vect.algebra t.select
REFERENCES
PLY(Python-Lex-Yacc)
AUTHORS
Thomas Leppelt, Sören Gebbert, Thünen Institute of Climate-Smart Agri-
culture
SOURCE CODE
Available at: t.rast3d.algebra source code (history)
Accessed: unknown
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GRASS 7.8.7 t.rast3d.algebra(1grass)
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