problem with png() and large dimensions on some 32-bit Windows machines

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Dan,

the Windows build of R has no back-end choices, so the error essentially comes from a system call which means that Windows simply cannot provide the resources. Have you tried let's say Cairo alternative on the same machine? [If you want to test it, please use install.packages("Cairo",,"http://rforge.net") ] That doesn't depend on the OS resources, only on RAM so it may be in theory more scalable.

Cheers,
Simon

Hello,

I encountered this:

png(file=tempfile(), width=1165, height=12983)
Error in png(file = tempfile(), width = 1165, height = 12983) :
 unable to start png() device
In addition: Warning messages:
1: In png(file = tempfile(), width = 1165, height = 12983) :
 Unable to allocate bitmap
2: In png(file = tempfile(), width = 1165, height = 12983) :
 opening device failed

On the following system:
sessionInfo()
R version 2.13.0 alpha (2011-03-18 r54865)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

This is a Windows Server 2003 R2 Enterprise Edition Service Pack 2 system
with 3GB of RAM.

On another system, the command works fine. Info from that system:

sessionInfo()
R version 2.13.0 alpha (2011-03-27 r55091)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base
Windows Server 2008 R2 Enterprise with 4GB of RAM.

The command also worked fine on a system with only 2GB of RAM, but I don't
have further information about that system at the moment. It suggests though
that the amount of RAM is not the sole factor involved.

Sorry this may not be the most reproducible problem, but I hope this is
useful nonetheless.
Dan

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