NAME¶

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

KEYWORDS¶

display, cartography

SYNOPSIS¶

d.grid d.grid help d.grid [-gwcdfnbt] size=value [origin=easting,northing] [ width=float] [color= name] [bordercolor=name] [textcolor= name] [fontsize=integer] [--verbose] [-- quiet]

Flags:¶

-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

--verbose

 

Verbose module output

--quiet

 

Quiet module output

Parameters:¶

size=value

 

Size of grid to be drawn

 

In map units or DDD:MM:SS format. Example: "1000" or "0:10"

origin=easting,northing

 

Lines of the grid pass through this coordinate

 

Default: 0,0

width=float

 

Grid line width

color=name

 

Grid color

 

Either a standard color name or R:G:B triplet

 

Default: gray

bordercolor=name

 

Border color

 

Either a standard color name or R:G:B triplet

 

Default: black

textcolor=name

 

Text color

 

Either a standard color name or R:G:B triplet

 

Default: gray

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. The grid will overlay, not overwrite, the contents of the active display frame. d.grid can be run non-interactively or interactively. If the user specifies the grid size and (optionally) the grid color on the command line the program will run non-interactively; if no grid color is given the default will be used. Alternately, the user may simply type d.grid on the command line; in this case, the program will prompt the user for parameter values using the standard GRASS graphical user interface.

NOTES¶

d.grid will not erase grids already displayed in the active graphics display frame by previous invocations of d.grid; multiple invocations of d.grid will therefore result in the drawing of multiple grids inside the active graphics frame. (A command like d.erase, which erases the entire contents of the active display frame, must be run to erase previously drawn grids from the display frame.) 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. 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.

EXAMPLES¶

To draw a red geographic grid with 30 minute grid spacing run either of the following:
d.grid -g size=00:30:00 color=red or
d.grid -g size=0.5 color=255:0:0 To draw a blue standard rectangular grid at a 500 (meter) spacing run the following:
d.grid size=500 color=blue

SEE ALSO¶

d.barscale d.legend d.geodesic d.rhumbline d.erase d.frame d.rast

AUTHORS¶

James Westervelt, U.S. Army Construction Engineering Research Laboratory Geogrid support: Bob Covill Border support: Markus Neteler Text and RGB support: Hamish Bowman Last changed: $Date: 2011-11-08 12:29:50 +0100 (Tue, 08 Nov 2011) $ Full index © 2003-2014 GRASS Development Team