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t.rast3d.algebra(1grass) GRASS 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=integer] [--help] [--verbose] [--quiet] [--ui]

Flags:


Check the spatial topology of temporally related maps and process only spatially related maps

Register Null maps

Use granularity sampling instead of the temporal topology approach

Print usage summary

Verbose module output

Quiet module output

Force launching GUI dialog

Parameters:


Algebraic expression for temporal and spatial analysis of space time 3D raster datasets

Basename of the new generated output maps
A numerical suffix separated by an underscore will be attached to create a unique identifier

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

AUTHORS

Thomas Leppelt, Sören Gebbert, Thünen Institute of Climate-Smart Agriculture

SOURCE CODE

Available at: t.rast3d.algebra source code (history)

Latest change: Monday Nov 03 07:06:22 2025 in commit: 072a1ce62e0d4ac0444c685586c2d9bc210226b4

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© 2003-2026 GRASS Development Team, GRASS 8.5.0RC1 Reference Manual

GRASS 8.5.0RC1