How can I change the longitude scale on the plotMap() PBSmapping package

Dear R-helpers,

I am using the package PBSmapping and I have a question on the fuction plotMap:


How can I change the longitude scale on data(worldLLhigh)? I changed
the coordinates of ylim () and xlim () on the function plotMap to plot
my study area. I would like to plot the Brazilian coastline that goes
from the latitude -26.0?S to -21.0?S and longitude from -48.0?W to
-45.0?W. However how can I change the scale value of xlim ranging from
312.0 to 315.0 for the scale of longitude 48.0W-and-45.0W to the same
area?. Can anyone help me?


Thanks,

Fabio Prior Caltabellotta, M.Sc.
Doutorando em Zoologia - Campus Botucatu
Universidade Estadual Paulista "J?lio de Mesquita Filho" - UNESP
Laborat?rio de Pesquisa em Elasmobr?nquios
http://lattes.cnpq.br/2735351775616389
End: Pra?a Infante Dom Henrique s/n - Parque Bitar?
11330-150 - S?o Vicente-SP, Brasil
Tel: +5511 81649946

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