r3.support(1)

📦
version 8.4.2 · 8 versions
, in fedora 44

💖 r3.support 💖

okay so bestie, welcome to the GRASS GIS User's Manual page for r3.support(1) — literally the glow-up station for your 3D raster map's whole personality. ✨

Allows creation and/or modification of 3D raster map layer support files.

✨ KEYWORDS ✨

raster3d, metadata, voxel 🦋

🌸 SYNOPSIS 🌸

r3.support
r3.support --help
r3.support [-s] map=name  [title=phrase]   [history=phrase]
[unit=string]   [vunit=string]   [source1=phrase]   [source2=phrase]
[description=phrase]   [raster=string]   [loadhistory=name]
[savehistory=name]   [--overwrite]  [--help]  [--verbose]  [--quiet]
[--ui]

🎀 Flags:

  • -s — Update range. periodt, that's it, that's the whole flag.
  • --overwrite — Allow output files to overwrite existing files. yes bestie it's giving "no take-backs," be careful 💀
  • --help — Print usage summary. your little cheat sheet 🫶
  • --verbose — Verbose module output. it will NOT stop talking and honestly? iconic
  • --quiet — Quiet module output. the introvert setting 🤫
  • --ui — Force launching GUI dialog. for when you want buttons instead of typing

🌈 Parameters:

  • map=name [required] — Name of 3D raster map. this one's mandatory, no skipping it, she's the main character 👑
  • title=phrase — Text to use for map title.
  • history=phrase — Text to append to the next line of the map's metadata file.
  • unit=string — The map data unit.
  • vunit=string — The vertical unit of the map.
  • source1=phrase — Text to use for data source, line 1.
  • source2=phrase — Text to use for data source, line 2. yes there are two, she has layers 💅
  • description=phrase — Text to use for data description or keyword(s).
  • raster=string — Raster map from which to copy category table.
  • loadhistory=name — Text file from which to load history.
  • savehistory=name — Text file in which to save history.

💜 DESCRIPTION 💜

r3.support allows the user to create and/or edit raster3d map support information. Editing of raster3d map units, history, description and title is supported. so like… you're basically the stylist for your voxel data's metadata closet. slay 🎀

🦋 NOTES 🦋

Freeform metadata information is stored in a "hist" file which may be appended to by using the history option. Currently this is limited to text with a maximum line length of 78 characters. Any input larger than this will be wrapped to the next line. All other metadata strings available as standard options are limited to 79 characters.

ngl bestie, that character limit is REAL. 78 for the "hist" file, 79 for everything else. write past it and the "hist" file just wraps you onto the next line. no cap. 🫶

👀 SEE ALSO 👀

r.info, r.timestamp

💅 AUTHORS 💅

  • Soeren Gebbert, vTI/AK, soerengebbert gmooglemail.com
  • Based on r.support written by Micharl Shapiro, CERL and others

(yes we said "Micharl," that's how it's written, we do not correct the ancestors 🙈)

⭐ SOURCE CODE ⭐

Available at: r3.support source code (history)

Accessed: Saturday Jan 17 05:41:16 2026

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© 2003-2025 GRASS Development Team, GRASS GIS 8.4.2 Reference Manual

okay bestie that's the whole page, mwah 💋 this was r3.support(1) from GRASS 8.4.2, and the manual itself is © 2003-2025 GRASS Development Team. go forth and give your 3D rasters the metadata they deserve. 🌸✨🦋

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