Re: [R] pdf() device uses fonts to represent points - data alteration?

From: Thomas Petzoldt <Thomas.Petzoldt_at_tu-dresden.de>
Date: Thu, 01 Nov 2007 20:18:47 +0100

Hello,

I had the same problem. When opening PDFs with a recent developer version of inkscape all circles were replaced by the letter "q", see a screenshoot of the imported figure:

http://www.simecol.de/figs/R_pdf_inkscape.png

I spent at least two hours trying different development versions of inkscape, different versions of R, reading docs, trying different machines, installing fonts etc., finally giving up. Now, the two workarounds of Paul Murrell indeed solved the problem for *me*. Thank you. Here are example results of workarounds (i) and (ii):

http://www.simecol.de/figs/R_ps_pdf_inkscape.png

or

http://www.simecol.de/figs/R_pdftrans_inkscape.png

One problem remains. I wanted to demonstrate post-editing PDFs with inkscape to motivate students to use R for graphics even if they dont want to "become programmers". However, double conversion (via postscript) or the magics of transparency and opaqueness are not yet the way to increase the trust of point-and-click users to R. Maybe this is a topic for r-devel?

Thomas

-- 
Thomas Petzoldt
Technische Universitaet Dresden
Institut fuer Hydrobiologie
01062 Dresden
GERMANY

http://tu-dresden.de/Members/thomas.petzoldt?set_language=en

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