t.rast3d.extract(1grass)

✨ t.rast3d.extract ✨

okay bestie, welcome to the t.rast3d.extract(1grass) manual page, GRASS User's Manual edition, and honestly? it's giving "short but iconic." πŸ’…


πŸ”‘ KEYWORDS πŸ”‘

temporal, extract, raster3d, voxel, time

the vibe check passed, no cap.


🌈 SYNOPSIS 🌈

t.rast3d.extract
t.rast3d.extract --help
t.rast3d.extract [-n] input=name  [where=sql_query]
[expression=string]  output=name  [basename=string]   [suffix=name]
[nprocs=integer]   [--overwrite]  [--help]  [--verbose]  [--quiet]
[--ui]

πŸŽ€ FLAGS πŸŽ€

  • -n β€” Register Null maps. yes bestie, we're registering the nulls too 🫢
  • --overwrite β€” Allow output files to overwrite existing files. bold move, but okay πŸ‘‘
  • --help β€” Print usage summary. the classic "wait how does this work" button πŸ’€
  • --verbose β€” Verbose module output. she talks a LOT 🌸
  • --quiet β€” Quiet module output. she says nothing. mysterious. πŸ¦‹
  • --ui β€” Force launching GUI dialog. for the girlies who click instead of type ✨

πŸ“ PARAMETERS πŸ“

  • input=name [required] β€” Name of the input space time raster3d dataset. this is the thing you're extracting from, periodt.
  • where=sql_query β€” WHERE conditions of SQL statement without 'where' keyword used in the temporal GIS framework. Example: start_time > '2001-01-01 12:30:00'
  • expression=string β€” The r3.mapcalc expression assigned to all extracted 3D raster maps. like, every single one gets this fit πŸ‘—
  • output=name [required] β€” Name of the output space time raster3d dataset. your new baby ✨
  • basename=string β€” Basename of the new generated 3D raster maps.
  • suffix=name β€” Suffix to add at basename: set 'gran' for granularity, 'time' for the full time format, 'num' for numerical suffix with a specific number of digits (default %%05). Default: gran
  • nprocs=integer β€” Number of r3.mapcalc processes to run in parallel. Default: 1

πŸ’œ DESCRIPTION πŸ’œ

so t.rast3d.extract is used to extract a subset of a space time 3D raster dataset and to store that subset in a different space time 3D raster dataset. it has exactly the same functionality as t.rast.extract. the only difference is the that this module works on STR3DS and 3D raster maps. (yes, we said "the that." we're keeping it. it's canon. 😭)

Please refer to t.rast.extract for documentation and examples. she's the older sister, go read her diary πŸ’–


πŸ‘€ SEE ALSO πŸ‘€

t.rast.extract, t.create, t.info

the trio. the squad. the main characters. 🫢


🌟 AUTHOR 🌟

SΓΆren Gebbert, ThΓΌnen Institute of Climate-Smart Agriculture


🧚 SOURCE CODE 🧚

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

Latest change: Tuesday Jan 27 12:40:13 2026 in commit: 5e8b13d47dd4fc81efa5abefe90c34f7a8291fb9

Main index | Temporal index | Topics index | Keywords index | Graphical index | Full index


okay that's the whole thing bestie, you ate πŸ’…

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

and for the little footer moment: this was t.rast3d.extract(1grass) from GRASS 8.5.0, dated as above β€” slay, go extract something. πŸŒˆπŸ‘‘βœ¨

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