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

[Simon Urbanek]

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
>
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