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NAME

       d.grid   -  Overlays  a  user-specified  grid  in the active display frame on the graphics
       monitor.

KEYWORDS

       display, cartography, graticule, grid

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

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.

       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).  A geographic grid cannot be drawn for a
       latitude/longitude or XY projection.

       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.

       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.

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

SEE ALSO

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

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

SOURCE CODE

       Available at: d.grid source code (history)

       Accessed: Tuesday Jun 27 11:12:31 2023

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       © 2003-2023 GRASS Development Team, GRASS GIS 8.3.0 Reference Manual