[R-sig-Geo] How to obtain name of Map object on graphic device?

[Edzer J. Pebesma]

Susumu Tanimura wrote:

>Hi there,
>
>My question is how to obtain a name of Map object currently on graphic
>device.  I had a look at help, documents, or web sites, however, it is
>still unclear. 
>
>It is obvious when I myself plot Map object, but I would like to
>obtain it automatically inside my function.
>
>Thank you very much in advance.
>
>--
>Susumu Tanimura
>
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>  
>
Susuma, I think you can find the answer in the example section
of the help page for substitute:

     myplot <- function(x, y)
         plot(x, y, xlab=deparse(substitute(x)),
              ylab=deparse(substitute(y)))

So, try for instance:

mplot=function(x) { plot(x); title(deparse(substitute(x))) }
--
Edzer