d.grid(1)

1d.grid(1)                     Grass User's Manual                    d.grid(1)
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NAME

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

10       display
11

SYNOPSIS

13       d.grid
14       d.grid help
15       d.grid [-gwnbt] size=value  [color=string]    [origin=easting,northing]
16       [bordercolor=string]
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18   Flags:
19       -g  Draw geographic grid (referenced to current ellipsoid)
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21       -w  Draw geographic grid (referenced to WGS84 ellipsoid)
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23       -n  Disable grid drawing
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25       -b  Disable border drawing
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27       -t  Disable text drawing
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29   Parameters:
30       size=value
31           Size of grid to be drawn
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33       color=string
34           Sets the grid color, either a standard GRASS color or R:G:B triplet
35           (separated by colons) Default: gray
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37       origin=easting,northing
38           Lines of the grid pass through this coordinate Default: 0,0
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40       bordercolor=string
41           Sets the border color, either  a  standard  GRASS  color  or  R:G:B
42           triplet Default: brown
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DESCRIPTION

45       d.grid  overlays  a  grid  of user-defined size and color in the active
46       display frame on the graphics monitor.  The grid can be  created  as  a
47       standard  rectangular grid or a geographic grid. The grid will overlay,
48       not overwrite, the contents of the active display frame.
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50       d.grid can be run non-interactively  or  interactively.   If  the  user
51       specifies  the grid size and (optionally) the grid color on the command
52       line the program will run non-interactively; if no grid color is  given
53       the default will be used.  Alternately, the user may simply type d.grid
54       on the command line; in this case, the program will prompt the user for
55       parameter values using the standard GRASS graphical user interface.
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NOTES

58       d.grid  will  not  erase grids already displayed in the active graphics
59       display frame by previous invocations of d.grid;  multiple  invocations
60       of d.grid will therefore result in the drawing of multiple grids inside
61       the active graphics frame.  (A command like d.erase, which  erases  the
62       entire  contents of the active display frame, must be run to erase pre‐
63       viously drawn grids from the display frame.)
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65       If the user provides a -g flag a geographic (projected)  grid  will  be
66       drawn.  With the -g flag the size argument accepts both decimal degrees
67       and colon separated ddd:mm:ss coordinates (eg. 00:30:00 for half  of  a
68       degree).
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70       A  geographic  grid cannot be drawn for a latitude/longitude or XY pro‐
71       jection.
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73       Colors may be standard named GRASS colors (red, green, aqua, etc.) or a
74       numerical R:G:B triplet, where component values range from 0-255.
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76       The grid drawing may be turned off by using the -n flag.
77       The border drawing may be turned off by using the -b flag.
78       The coordinate text may be turned off by using the -t flag.
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EXAMPLES

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

101       James  Westervelt,  U.S. Army Construction Engineering Research Labora‐
102       tory
103       Geogrid support: Bob Covill
104       Border support: Markus Neteler
105       Text and RGB support: Hamish Bowman
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107       Last changed: $Date: 2005/10/25 12:51:45 $
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109       Full index
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113GRASS 6.2.2                                                          d.grid(1)