[Rd] Sweave, cairo_pdf, CJK, ghostscript

Duncan Murdoch murdoch.duncan at gmail.com
Sat Oct 22 13:53:26 CEST 2011

On 11-10-21 8:57 PM, Hin-Tak Leung wrote:
> I have had some fun in the last few days trying to put together an annotated map of China with R and some public GIS data:
> http://sourceforge.net/projects/outmodedbonsai/files/snpMatrix%20next/
> It is done, and rather nice... there are a few issues:
> - the default pdf() device cannot do CJK with embedded fonts - and cairo_pdf() is not hooked up to Sweave yet. I have had a quick look, and it does not look too complicated, other than the fact that cairo_pdf() is mutually exclusive with pdf(); and the jpeg/png are new to 2.13 so it is probably just nobody has gotten round to it. (and cairo_pdf() also behaves differently with the onefile option). I guess I am almost saying I might get my hand dirty or help somebody else who wants to. So it is probably best to start some discussion.

It is not hard to write your own device functions, especially in 2.14.0. 
  See rgl::rgl.Sweave for an example.

Duncan Murdoch

> - Some of the ghostscript/CID font instructions in pdf() are a bit bizarre...
> - An earlier version of the above map does not work well with part of ghostscript (http://bugs.ghostscript.com/show_bug.cgi?id=692620). So that limits to some extent post-processing of cairo_pdf() output.
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