On Jul 17, 2008, at 2:33 PM, baptiste auguie wrote:

Thanks, I'm glad this has a logical and easy explanation!

I assume the nightly build you refer to is located here: 
http://r.research.att.com/

Yes


, would it suffice to upgrade the R.app or is the quartz thing part of the heavy R dmg file?

You'll need the whole dmg file, but wait until tomorrow, because today's changes are only reflected in tonight's build.


Two days ago I tried to install R from source and it failed for some (obscure to me) reason, so I hope it's not required to fix this.


Not really. You don't really need to do it (make sure your have Xcode installed), but if it is not anything covered by the FAQ, send me the output and I can have a look.

Cheers,
Simon




On 17 Jul 2008, at 15:50, Simon Urbanek wrote:

Me culpa - it's a bug in Quartz code that uses bitmap rendering (i.e. on-screen and bitmap formats) which splits lines to segments for faster rendering and produces a gap between such segments. It should be fixed in tonight's nightlies.

Thanks,
Simon


On Jul 17, 2008, at 4:28 AM, Peter Macdonald wrote:

Yes, I have just started to notice this in the past two weeks and I have no explanation.


On 2008-07-16 8:08 AM, "baptiste auguie" <[EMAIL PROTECTED]> wrote:

Dear all,


I've just installed R on a new MacBook Pro, and I'm facing the following issue: continuous lines in some graphs appear with a discontinuity when I use the quartz or png() device. I really don't think it comes from this specific code as the pdf() output is fine, and so is the output on other machines. I have no clue where the problem is, I can't nail down what triggers it (I haven't been able yet to create a minimal example, sadly). The screenshot attached shows the result of the pdf() device vs the default quartz() device, note the broken lines in the middle of the right side graph.

Has anybody faced a similar glitch before?

Many thanks,

baptiste

sessionInfo()
R version 2.7.1 (2008-06-23)
i386-apple-darwin8.10.1

locale:
en_GB.UTF-8/en_GB.UTF-8/C/C/en_GB.UTF-8/en_GB.UTF-8

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


<image.png>

PS: apologies for any duplicate, i've been trying to send to this list for 2 days without any apparent success.
_____________________________

Baptiste AuguiƩ

School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK

Phone: +44 1392 264187

http://newton.ex.ac.uk/research/emag
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--
Peter D.M. Macdonald, D.Phil., P.Stat.
Professor of Math & Statistics
McMaster University
Hamilton, Ontario, Canada L8S 4K1

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_____________________________

Baptiste AuguiƩ

School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK

Phone: +44 1392 264187

http://newton.ex.ac.uk/research/emag
______________________________



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