## NAME

d.grid - Overlays a user-specified grid in the active display frame on the graphics monitor.
(GRASS Display Program)

## SYNOPSIS

d.grid
d.grid help
d.grid size=value [color=name] [origin=easting,northing]

## DESCRIPTION

d.grid overlays a grid of user-defined size and color in the active display frame on the graphics monitor. 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 user interface described in the manual entry for parser.

### Parameters:

size=value
  Size of grid to be drawn in the active display frame, in current map coordinate system units. It should be noted that, depending on the scale of the map layer displayed in this frame, the grid may fall outside the user's viewing range.
  Options: 0-100000
color=name
  Sets the current grid color to name.
  Options: red, orange, yellow, green, blue, indigo, violet, magenta, brown, gray, white, and black.
  Default: gray
origin=easting,northing
  Lines of the grid pass through this coordinate. The coordinate need not be within the current frame.

## 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.)

Currently, the grid size can only be drawn in the units of the map coordinate system used by the current GRASS location.

## SEE ALSO

d.display
d.erase
d.frame
d.legend
d.rast
d.scale
parser

## AUTHOR

James Westervelt, U.S. Army Construction Engineering Research Laboratory

Last changed: $Date: 2002/01/25 05:45:32 $