addnortharrow: Plot North Arrow

In prettymapr: Scale Bar, North Arrow, and Pretty Margins in R

Plot North Arrow

Description

Plot a north arrow (pointing directly "up") positioned based on current plot extents.

Usage

addnortharrow(
  pos = "topright",
  padin = c(0.15, 0.15),
  scale = 1,
  lwd = 1,
  border = "black",
  cols = c("white", "black"),
  text.col = "black"
)

Arguments

pos	Where to align the north arrow. One of "bottomleft", "bottomright", "topleft", or "topright".
padin	A vector of length 2 determining the distance in inches between the scalebar and the edge of the plottable area.
scale	Scale the default north arrow to make it bigger or smaller
lwd	The line width outlining the north arrow
border	The line color outlining the north arrow
cols	A vector of length 2 determining the two colors to be drawn for the north arrow
text.col	Color of the "N"

Examples

library(maptools)
data(wrld_simpl)
plot(wrld_simpl)
addnortharrow()

plot(1:5, 1:5, asp=1)
addnortharrow()

prettymapr documentation built on June 9, 2022, 5:09 p.m.