[Rd] raster support in graphics devices

[hadley wickham]

> Its not just the time.  Its also the nuisance of having to manage files that
> I never needed in the first place.

In general, it's much easier to create output from a R object than
create an R object from output.

It's good programming practice to minimise the number of functions
with side-effects - if all input and output went through connections,
many parts of R would be much easier to program against.

Hadley

-- 
http://had.co.nz/