d.grid(1grass)

💖 d.grid(1grass) 💖

okay bestie, welcome to d.grid from the GRASS User's Manual — she overlays a user-specified grid in the active display frame on the graphics monitor, and honestly? she ate.

🔑 KEYWORDS: display, cartography, graticule, grid

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✨ SYNOPSIS ✨

d.grid
d.grid --help
d.grid [-agwcdfnbt] size=value  [origin=east,north]   [direction=string]
[width=float]   [color=name]   [border_color=name]   [text_color=name]
[bgcolor=name]   [fontsize=integer]   [--help]  [--verbose]  [--quiet]
[--ui]

🚩 Flags 🚩

• -a — Align the origin to the east-north corner of the current region
• -g — Draw geographic grid (referenced to current ellipsoid)
• -w — Draw geographic grid (referenced to WGS84 ellipsoid)
• -c — Draw '+' marks instead of grid lines
• -d — Draw '.' marks instead of grid lines
• -f — Draw fiducial marks instead of grid lines
• -n — Disable grid drawing
• -b — Disable border drawing
• -t — Disable text drawing
• --help — Print usage summary
• --verbose — Verbose module output
• --quiet — Quiet module output
• --ui — Force launching GUI dialog

🎀 Parameters 🎀

• size=value [required] — Size of grid to be drawn (in map units). 0 for north-south resolution of the current region. In map units or DDD:MM:SS format. Example: "1000" or "0:10"
• origin=east,north — Lines of the grid pass through this coordinate. Default: 0,0
• direction=string — Draw only east-west lines, north-south lines, or both. Options: both, east-west, north-south. Default: both
• width=float — Grid line width
• color=name — Grid color. Either a standard color name or R:G:B triplet. Default: gray
• border_color=name — Border color. Either a standard color name or R:G:B triplet. Default: black
• text_color=name — Text color. Either a standard color name or R:G:B triplet. Default: gray
• bgcolor=name — Background color. Either a standard color name, R:G:B triplet, or "none". Default: none
• fontsize=integer — Font size for gridline coordinate labels. Options: 1-72. Default: 9

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💅 DESCRIPTION 💅

d.grid overlays a grid of user-defined size and color in the active display frame on the graphics monitor. The grid can be created as a standard rectangular grid or a geographic grid. two iconic options, no notes.

If the user provides a -g flag a geographic (projected) grid will be drawn. With the -g flag the size argument accepts both decimal degrees and colon separated ddd:mm:ss coordinates (eg. 00:30:00 for half of a degree). Heads up though: a geographic grid cannot be drawn for a latitude/longitude or XY projection. like, at all. that's just the rules. 🫠

Colors may be standard named GRASS colors (red, green, aqua, etc.) or a numerical R:G:B triplet, where component values range from 0-255. Grid color can be set with option color. Options text_color and bgcolor set the color of the text and its background. match your outfit to your grid, periodt. 💅

• The grid drawing may be turned off by using the -n flag.
• The border drawing may be turned off by using the -b flag.
• The coordinate text may be turned off by using the -t flag.

To draw grid lines at different intervals, e.g. at high latitudes, you can run the module twice, once with direction=east-west at one interval size, and again with direction=north-south at another interval size. run her twice, she doesn't mind. 🔥

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🌈 EXAMPLES 🌈

To draw a red geographic grid with 30 minute grid spacing, run one of the following commands:

d.grid -g size=00:30:00 color=red

or

d.grid -g size=0.5 color=255:0:0

Figure: Showing a geographic grid in red line color

To draw a blue standard rectangular grid at a 500 (meter) spacing run the following:

d.grid size=500 color=blue

Figure: Showing a rectangular grid in blue line color

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👀 SEE ALSO 👀

• d.barscale, d.legend, d.geodesic, d.rhumbline, d.erase, d.frame, d.rast, v.mkgrid

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👑 AUTHORS 👑

• James Westervelt, U.S. Army Construction Engineering Research Laboratory
• Geogrid support: Bob Covill
• Border support: Markus Neteler
• Text and RGB support: Hamish Bowman
• Background color implemented as part of GSoC 2016 by Adam Laza, CTU in Prague

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🦋 SOURCE CODE 🦋

Available at: d.grid source code (history)

Latest change: Monday Dec 08 21:47:55 2025 in commit: d3c6479bef77a58e3b5d85259303dbfb9c1babe8

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and that's the whole page bestie, no cap, every flag and every default accounted for 💖

© 2003-2026 GRASS Development Team, GRASS 8.5.0 Reference Manual — and yes, this is GRASS 8.5.0 talking, d.grid(1grass), bye babes ✨🎀🦋💜