[R-SIG-Mac] broken lines with quartz device

[baptiste auguie]

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

Many thanks,

baptiste


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" <ba208 at exeter.ac.uk> 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 Auguié
>>>
>>> School of Physics
>>> University of Exeter
>>> Stocker Road,
>>> Exeter, Devon,
>>> EX4 4QL, UK
>>>
>>> Phone: +44 1392 264187
>>>
>>> http://newton.ex.ac.uk/research/emag
>>> ______________________________
>>>
>>> _______________________________________________
>>> R-SIG-Mac mailing list
>>> R-SIG-Mac at stat.math.ethz.ch
>>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>>
>> -- 
>> Peter D.M. Macdonald, D.Phil., P.Stat.
>> Professor of Math & Statistics
>> McMaster University
>> Hamilton, Ontario, Canada L8S 4K1
>>
>> _______________________________________________
>> R-SIG-Mac mailing list
>> R-SIG-Mac at stat.math.ethz.ch
>> https://stat.ethz.ch/mailman/listinfo/r-sig-mac
>

_____________________________

Baptiste Auguié

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

Phone: +44 1392 264187

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