[R] bitmap (blank image) plot rendering without X11

[Peter Dalgaard]

"Director, Beracah Yankama" <beracah at studentsreview.com> writes:

> Hi,
> I am trying to generate plots on our unix (no X) server to be included
> in our web-pages -> specifically pngs.
> 
> Without X, png() obviously doesn't work, so I have been trying to
> define the graphics print device bitmap as described in the help:
> 
>  > bitmap(file="plot.png", type = "png256", height = 6, width=6,res=72)
>  > pie(c(12,5))
>  > dev2bitmap(file="plot.png", type = "png256", height = 6, width =
> 6,res=72)
> 
> I end up with "plot.png" as a nonzero png file, but it is always
> blank... I have gs 6.51 installed & R_GSCMD=/usr/bin/gs set.

Try forgetting the dev2bitmap() line and just terminate the device
with dev.off(). 

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907