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

[Simon Urbanek]

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" <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
> ______________________________
>
>