t.rast3d.algebra - Apply temporal and spatial operations on space time 3D raster datasets using temporal 3D raster algebra.

NAME KEYWORDS SYNOPSIS Flags: Parameters: DESCRIPTION NOTES REFERENCES SEE ALSO AUTHORS SOURCE CODE

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:

−s

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

−n

−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=stringÂ [required]

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

basename=stringÂ [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.

Updated 2026-06-01 - jenkler.se | uex.se