[R] bitmap (blank image) plot rendering without X11
Director, Beracah Yankama
beracah at studentsreview.com
Tue Nov 30 21:36:40 CET 2004
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.
generating Rplot.ps; pstoimg -antialias (or pstopnm) would also be an
acceptable solution if I knew how to control the size of the generated
image, or if the ps generated by R was consistently compatible with
pstopnm. (ps2ps causes me to lose parts of the image)..
So I am asking know-alls of R... if they know of a solution? We are
generating thousands of images, so work on a windows or slower machine
with X is not really an option...
any help much appreciated!
Beracah
--
Beracah Yankama
Director, StudentsReview
StudentsReview.com
beracah at studentsreview.com
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