[R-SIG-Mac] Saving or copying graphics from Quartz returns empty file

John Maindonald john.maindonald at anu.edu.au
Tue Jan 29 22:14:49 CET 2013

Surely though one may have to do quite a bit of tinkering
to get pdf output that looks exactly like the quartz output.
The result for dev.copy() or quartz.save() is generally 
fairly close.  

From that point of view, it would be useful (save a few clicks) 
to be able to plot pdf of jpeg output directly to the screen.
Or is there a way to do that, short of printing to a file that is
already open in Preview.

John Maindonald             email: john.maindonald at anu.edu.au
phone : +61 2 (6125)3473    fax  : +61 2(6125)5549
Centre for Mathematics & Its Applications, Room 1194,
John Dedman Mathematical Sciences Building (Building 27)
Australian National University, Canberra ACT 0200.

On 29/01/2013, at 10:45 PM, Duncan Murdoch <murdoch.duncan at gmail.com> wrote:

> On 13-01-25 10:59 AM, Heather CHAPMAN wrote:
>> Hi,
>> Can anyone suggest some help for saving or copying graphs I've created
>> in the Quartz screen? I've read the R-FAQ and tried to search for
>> answers, but have not found anything. I'm using a Mac, Mountain Lion OS,
>> and have version 2.15.2 of R.
> I don't know the cause of the problem you're seeing, but I generally recommend to people that they generate graphs in the final format, rather than saving them from some other format.
> In your case, that would mean working out the code to make your plot look good on screen, then redo it all directly to the pdf device, by simply wrapping the code in
> pdf(file="foo.pdf")
> ... your code to draw the plot ...
> dev.off()
> This is preferable because the graphics system makes some choices (spacing, etc.) based on the characteristics of the output device; if you copy from a screen device to a print device, those
> choices may be different.
> Duncan Murdoch
>> When I save a graphic, the process either crashes R, or if it saves a
>> file, when I open it I get a blank file or an error message that reads
>> "The file Rplot.pdf could not be opened." When I try to copy the graphic
>> instead to paste into any other program (Word, Excel, etc), a blank
>> image frame is all I get. I have also tried running graphics and either
>> saving or exporting from RStudio and have the same issues.
>> I assume there is some package I've not loaded or some bug fix I need to
>> get, but I can't find any documentation about it. Any ideas?
>> Thanks,
>> Heather Chapman
>> Heather Chapman
>> Senior Research Analyst for Assessment
>> Office of Institutional Effectiveness
>> 4002 University Circle
>> Ogden, Utah 84408
>> Phone: (801) 626-7177
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