[R-sig-Geo] How to diplasy a compass rose on a map

[Tomislav Hengl]

Package StatDA has an option to generate a nort arrow (I am sure you 
could easily replace this with any symbol you prefer):

 > Northarrow(Xbottom, Ybottom, Xtop, Ytop, Xtext, Ytext, Alength, 
Aangle, Alwd, Tcex)

Here are some examples of publication ready maps:

http://www.statistik.tuwien.ac.at/StatDA/R-scripts/page131.html

These plots are something that a cartographer would like to see in R, 
but the code is long! And of course you need to (manually) get all 
coordinates and dimensions of legend, scale bar and arrow for your study 
area  :(

T. Hengl
http://home.medewerker.uva.nl/t.hengl/


Everton Emanuel wrote:
> Dear all,
> 
> I want to display a "compass rose" on a map, but I have no idea how to do
> that. Do you know how can I display a compass rose on a map?
> 
> Thank you all,
> Everton.
>