cardinal: Add Cardinal Points to a Plot

In astro: Astronomy Functions, Tools and Routines

Description

Adds the four cardinal points to a figure, marking north and east.

Usage

cardinal(rotate = 0, pos = "bottomright", inset = 0.5, 
         len = 2, gap = 1, col = "white", linecol = col, 
         bg = "grey25", lwd = 1, invert = TRUE, south = TRUE, 
         west = TRUE, textrot = TRUE, ...)

Arguments

rotate	rotate cardinal cross clockwise from 'up' (degrees)
pos	position of cross (bottomleft/topleft/topright/bottomright)
inset	inset cross from edge
len	length of cross arrows
gap	size of gap between arrowhead and text
col	colour of arrows/text
linecol	colour of cardinal cross
bg	shading colour
lwd	line width
invert	invert east-west
south	show the southern prong
west	show the western prong
textrot	rotate the text along with the cross
...	arguments to be passed to 'shadowtext'

Author(s)

Lee Kelvin <[e-mail]>

See Also

The astronomy package: astro.

astro documentation built on May 2, 2019, 2:14 a.m.