DEnis,
On May 1, 2007, at 4:04 PM, Chabot Denis wrote:
Until now, I've been able to use the tilde to replace "/Users/
chabotd" in all my R scripts, be it directly or with the use of
"paste".
I am experimenting with quartz.save to produce png files to save
the step of producing pdf and transforming them into png later. I
need png to reduce file size for a series plots with thousands of
points, even though I prefer vector drawings for most situations.
I have not been able to find any documentation on quartz.save, but
if I include the tilde in the file name, something that works with
pdf or png devices, it does not work (for me) with quartz.save. I
need to give the unabridged path.
Is there a reason for this?
Yes, the tilde is not expanded. Why is it not expanded? Because the
author didn't think of it ;). It's fixed now.
Also, what are the options in quartz.save? I've only managed to
use file="path and file" and type="png" or type="pdf". I've tried
to control resolution (res=300) but it had no effect, so for now I
change the size of the quartz graphics when I call quartz (which
forces me to change pointsize as well to keep proportions of text
relative to drawing size the same.
file, type and device are the only options of quartz.save and the
purpose is to save the image "as-is", directly from the Quartz
window, so res doesn't make sense here (it would no longer be a
direct snapshot of the window). I guess it would be possible to do
what you described, though (Quartz->PDF->PNG of any resolution).
I'll see if there is an easy way to do that ...
Cheers,
Simon