Ludo Pagie wrote:
Hi all,
when I make a polygon with 100,000 vertices my X-server is being
killed. This occurs in R-2.9.0 and a freshly installed R-2.10.0
I'm running Ubuntu with a locally compiled R:
uname -a
Linux onyx 2.6.24-24-generic #1 SMP Tue Aug 18 16:22:17 UTC 2009
x86_64 GNU/Linux
xlower = -2e6:2e6
xupper = rev(xlower)
ylower = runif(length(xlower))
yupper = ylower+.1
plot(NA,xlim=range(xlower),ylim=range(ylower))
idx=1:10000
# it draws fine for lower number of vertices:
polygon(x=c(xlower[idx],xupper[idx]),y=c(ylower[idx],yupper[idx]),col='grey')
# but X is killed when I draw 100000 vertices or more
idx=1:100000
# I've commented the next call to prevent people accidently
# killing their X?
#polygon(x=c(xlower[idx],xupper[idx]),y=c(ylower[idx],yupper[idx]),col='grey')
This one is extraordinary dangerous: it also killed my kind of X server
called Windows completely so that I had to reset the machine.
Perhaps it should be debugged on the Linux side with less serious side
effects....
Probably you found some bugs in the X server / Windows operating
systems. Nevertheless, R should take care as well. This one is really
worth a bug report. Can you file a bug report, please?
Best wishes,
Uwe Ligges
sessionInfo()
R version 2.10.0 (2009-10-26)
x86_64-unknown-linux-gnu
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=C LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets
methods base
I'm sorry for the messy/non-intelligent code but I'm not eager
to clean it up and check it ....
Any idea what might being going on here?
Thanks, Ludo
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and provide commented, minimal, self-contained, reproducible code.
