[R-SIG-Mac] graphics problem from Macintosh system software

[John Maindonald]

I used to get this type of message from time to time when I was plotting
to the RStudio graphics device.  Enlarging the graphics panel seemed
to fix it.  I’ve not seen it recently, with R-3.2.2

John Maindonald             email: john.maindonald at anu.edu.au


> On 18/12/2015, at 10:28, Richard M. Heiberger <rmh at temple.edu> wrote:
> 
> No idea at all.  It happens randomly.  I have noticed it since June
> 2012 when I first started using the Macintosh.  This is the first time
> I saw it with R-3.2.3 so I decided to
> report it again.
> 
> My guess is that it is deep in the Macintosh device driver software.
> 
> Rich
> 
> On Thu, Dec 17, 2015 at 4:23 PM, Erich Neuwirth
> <erich.neuwirth at univie.ac.at> wrote:
>> Do you have any idea under what circumstances this happens.
>> 
>> 
>>> On Dec 17, 2015, at 21:44, Richard M. Heiberger <rmh at temple.edu> wrote:
>>> 
>>> This has been reported before.  I am still seeing it with R-3.2.3.
>>> It appears randomly.  It sounds scary.
>>> 
>>> Rich
>>> 
>>>> 
>>> Dec 17 15:14:01 rmhs-MacBook-Air.local R[3534] <Error>:
>>> CGContextSetFont: invalid context 0x7fb698259080. This is a serious
>>> error. This application, or a library it uses, is using an invalid
>>> context  and is thereby contributing to an overall degradation of
>>> system stability and reliability. This notice is a courtesy: please
>>> fix this problem. It will become a fatal error in an upcoming update.
>>> Dec 17 15:14:01 rmhs-MacBook-Air.local R[3534] <Error>:
>>> CGContextSetFontSize: invalid context 0x7fb698259080. This is a
>>> serious error. This application, or a library it uses, is using an
>>> invalid context  and is thereby contributing to an overall degradation
>>> of system stability and reliability. This notice is a courtesy: please
>>> fix this problem. It will become a fatal error in an upcoming update.
>>> Dec 17 15:14:01 rmhs-MacBook-Air.local R[3534] <Error>:
>>> CGContextGetFont: invalid context 0x7fb698259080. This is a serious
>>> error. This application, or a library it uses, is using an invalid
>>> context  and is thereby contributing to an overall degradation of
>>> system stability and reliability. This notice is a courtesy: please
>>> fix this problem. It will become a fatal error in an upcoming update.
>>> p
>>> 
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>>> R-SIG-Mac at r-project.org
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>> 
> 
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