[R-sig-Geo] linewidth of polygon

[Susumu Tanimura]

Dear Roger and Mike,

Thank you for advice.  

>  I'll add the ... to plot.Map calls to polygon(),
> which will  permit thicker borders, will be in 0.5-2.

This is what I expected. Thanks.  

> > This will plot no boundary at all ("ol" is an argument of plot.Map):
> > 
> > plot(pl, ol = NA)
> > 
> 
> Or plot(pl, ol = "transparent").

Oh, I did not know.  Maybe no document was given?

--
Susumu Tanimura