d.northarrow(1grass) GRASS GIS User's Manual d.northarrow(1grass)
NAME
d.northarrow - Displays a north arrow on the graphics monitor.
KEYWORDS
display, cartography, map annotations, arrow
SYNOPSIS
d.northarrow
d.northarrow --help
d.northarrow [-twr] [style=string] [at=x,y] [rotation=float]
[label=string] [color=name] [fill_color=name] [text_color=name]
[width=float] [font=string] [fontsize=float] [path=name]
[charset=string] [--help] [--verbose] [--quiet] [--ui]
Flags:
-t
Draw the symbol without text
-w
Do not rotate text with symbol
-r
Use radians instead of degrees for rotation
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog
Parameters:
style=string
North arrow style
Options: 1a, 1b, 2, 3, 4, 5, 6, 7a, 7b, 8a, 8b, 9, fancy_compass,
basic_compass, arrow1, arrow2, arrow3, star
Default: 1a
1a: Two color arrowhead
1b: Two color arrowhead with circle
2: Narrow with blending N
3: Long with small arrowhead
4: Inverted narrow inside a circle
5: Triangle and N inside a circle
6: Arrowhead and N inside a circle
7a: Tall half convex arrowhead
7b: Tall half concave arrowhead
8a: Thin arrow in a circle
8b: Fat arrow in a circle
9: One color arrowhead
fancy_compass: Fancy compass
basic_compass: Basic compass
arrow1: Simple arrow
arrow2: Thin arrow
arrow3: Fat arrow
star: 4-point star
at=x,y
Screen coordinates of the rectangle’s top-left corner
(0,0) is lower-left of the display frame
Options: 0-100
Default: 85.0,15.0
rotation=float
Rotation angle in degrees (counter-clockwise)
Default: 0
label=string
Displayed letter on the top of arrow
Default: N
color=name
Line color
Either a standard color name, R:G:B triplet, or "none"
Default: black
fill_color=name
Fill color
Either a standard color name, R:G:B triplet, or "none"
Default: black
text_color=name
Text color
Either a standard color name or R:G:B triplet
width=float
Line width
Default: 0
font=string
Font name
fontsize=float
Font size
Options: 1-360
Default: 14
path=name
Path to font file
charset=string
Text encoding (only applicable to TrueType fonts)
DESCRIPTION
d.northarrow displays a north arrow symbol at the given screen coordi-
nates. If no coordinates are given it will draw the north arrow in the
bottom right of the display. It can draw the north arrow in a number of
styles (see the wiki page for details). With certain styles of north
arrow label ’N’ is displayed by default, and can be changed with option
label, for example for different languages. The label can be hidden
with -t flag.
North arrow can be rotated, for example to align with true north, not
grid north. The angle in degrees counter-clockwise (or radians with -r
flag) can be specified with option rotation. Label is rotated together
with the arrow, unless flag -w is specified.
EXAMPLES
Display a north arrow symbol as a basic compas with label NORTH, ro-
tated by 8 degrees with label, with black line and gray fill:
d.mon wx0
d.northarrow style=basic_compas rotation=8 label=NORTH -w color=black fill_color=gray
d.mon -r
SEE ALSO
d.barscale, d.graph, d.grid, d.legend
AUTHOR
Hamish Bowman, Department of Geology, University of Otago, New Zealand
Improvements as part of GSoC 2016 by Adam Laza, CTU in Prague
SOURCE CODE
Available at: d.northarrow source code (history)
Accessed: unknown
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GRASS 7.8.7 d.northarrow(1grass)
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