[R] PBSmapping and shapefiles

[Denis Chabot]

Hi,

Is there a way, preferably with R, to read shapefiles and transform  
them in a format that I could then use with package PBSmapping?

I have been able to read such files into R with maptools' read.shape  
and plot it with plot.Map, but I'd like to bring the data to  
PBSmapping and plot from there. I also looked at the package  
shapefile, but it does not seem to do what I want either.

Sincerely,

Denis Chabot