[R] circle / oval / semicircle ?

[Barry Rowlingson]

ivo welch wrote:
> 
> thanks, guys.  circles might be a good candidate for a graphics 
> primitive in the next R version, 

  The 'symbols' function can draw circles, as well as a few other things 
- stars, squares, rectangles, boxplots and thermometers.

  Postscript produced with symbols' circles option does produce true 
scalable circles, but I don't think you can have true scalable 
postscript ellipses without some major hacking on R's device driver code!

Baz