[R] Cairo on windows

hadley wickham h.wickham at gmail.com
Thu Sep 27 18:57:52 CEST 2007


You could also try the cairoDevice package, which should definitely
work with the gtk libraries that you probably have from installing
GGobi.

Hadley

On 9/27/07, Yves Moisan <ymoisan at groupesm.com> wrote:
>
> Hi All,
>
> I just installed Cairo on R 2.5.1 on windows XP.  My hope was to get to see
> the transparency output e.g.  http://had.co.nz/ggplot2/stat_smooth.html
> ggplot2 - stat_smooth , which I finally managed to do.  However, I find the
> Cairo device, which I access either through CairoWin() or Cairo(type="win"),
> is pretty shaky in a number of respects :
>
> - whatever portion of the Cairo device that is covered by the R command
> window does not get drawn.  I noticed changing the size of the Cairo window
> by dragging one of its corners with the mouse does refresh the whole window
> sometimes
>
> - a simple plot or qplot command works, e.g. qplot(x=kg.hab,y=Cout.ton,
> data=ech2).  When one starts to add xlab, ylab and main then things start
> getting shaky to the point the display becomes blank.  At that point, even
> reverting back to a simple plotting command that worked 5 seconds ago won't
> bring back the display.  One has to dev.off() and start again.
>
> Besides the interactive windows display, I also wanted to use Cairo's PNG
> support so I went and tried one of my
> png(filename = ...)
>  commands with
> CairoPNG(filename = ...)
>  and the output was also blank.
>
> Are there additional steps besides a package install of Cairo I have to
> worry about ?
>
> TIA,
>
> Yves Moisan
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-- 
http://had.co.nz/



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