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
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.
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
d.barscale,
d.legend,
d.geodesic,
d.rhumbline,
d.erase,
d.frame,
d.rast,
v.mkgrid
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)
Latest change: Tuesday Dec 17 20:17:20 2024 in commit: ab90c5e5a9b668894da360fa97ffd4a51a38931e
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© 2003-2024
GRASS Development Team,
GRASS GIS 8.5.0dev Reference Manual