[R-SIG-Mac] svg & cairo support in 2.12.2 and higher?

[Simon Urbanek]

On Apr 27, 2011, at 3:57 AM, Prof Brian Ripley wrote:

> Try running 32-bit R on your platform: it does contain cairo support.
> (So does my own x86_64 build of 2.13.0: looks like there is/was a problem on the CRAN build machine. So you could also build R from the sources.)
> 

The current R-2.13.0 patched builds should work as well. It has cairo updated to a more recent version for it to work in 64-bit (symbols in iconv have changed in the meantime in the OS). All upgrade libraries are available from the usual place.

Cheers,
Simon


> On Wed, 13 Apr 2011, Sarah Berke wrote:
> 
>> Hello,
>> 
>> I'm not sure if this is the best list for my question, so please let
>> me know if I should direct this elsewhere.
>> 
>> When I used R version 2.12.0 on my Mac (Platform:
>> x86_64-apple-darwin9.8.0/x86_64 (64-bit)), I often used svg() to
>> create graphics which I then edited in Inkscape.  When I updated to
>> 2.12.2, the code that worked in 2.12.0 started returning an error,
>> "cairo-based devices are not supported on this build".  Same problem
>> in 2.13 released today.  And indeed, capabilities() returns FALSE for
>> cairo, whereas it used to be TRUE.
>> 
>> I tried using {RSvgDev}, but (1) I don't like that I cannot specify a
>> pointsize, (2) it ignores any color specification of text (gray text
>> is turned into black), and (3) the vectors come out aliased (i.e., an
>> 'L' shaped vector becomes pixellated at the angle).  svg() did not
>> suffer from any of these problems.
>> 
>> I also tried installing {cairoDevice}, but when I try to load it I get this:
>> 
>>> require (cairoDevice)
>> Loading required package: cairoDevice
>> Error in dyn.load(file, DLLpath = DLLpath, ...) :
>> unable to load shared object
>> '/Library/Frameworks/R.framework/Versions/2.13/Resources/library/cairoDevice/libs/x86_64/cairoDevice.so':
>> dlopen(/Library/Frameworks/R.framework/Versions/2.13/Resources/library/cairoDevice/libs/x86_64/cairoDevice.so,
>> 6): Library not loaded:
>> /Library/Frameworks/GTK+.framework/Versions/2.18.X11/Resources/lib/libgtk-x11-2.0.0.dylib
>> Referenced from:
>> /Library/Frameworks/R.framework/Versions/2.13/Resources/library/cairoDevice/libs/x86_64/cairoDevice.so
>> Reason: image not found
>> 
>> For now I have reverted to 2.12.0, but I was wondering if there is any
>> way to build 2.13 with Cairo capabilities, or if anyone has advice for
>> getting better-quality svg's in R?
>> 
>> Many thanks,
>> Sarah
>> 
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>> R-SIG-Mac at r-project.org
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>> 
> 
> -- 
> Brian D. Ripley,                  ripley at stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272866 (PA)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595
> 
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