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
           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 Agriculture

SOURCE CODE

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

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       © 2003-2019 GRASS Development Team, GRASS GIS 7.8.2 Reference Manual