I am still doing some cosmetic things (adding annotations with some of the
really minority languages in Sichuan), but here are a few misc tips and quirks
so far:
- cairo_pdf() behaves differently via "R CMD Sweave <file>" vs Sweave("file")
within R. The former produces a lot of warnings about not being able to
determine strwidth and have to substitute. Probably understandable, but still
annoying.
- It generates pdf 1.5 - when used in combination with xetex, - which uses
xdvipdfmx for pdf generation, and xdvipdfmx has the rather disturbing behavior
of *silently* *skipping* included pdf's that's higher than the default (instead
of do it with warning like pdfTeX) so no graphics will be included, unless
xetex is run with -output-driver="xdvipdfmx -V 5"... to declare to output pdf
1.5 .
- xetex needs noae in \usepackage{SWeave}. FWIW, Werner Lemberg's CJK (the
LaTeX package) can work without declaring noae, so that's my preferred choice
at the moment, although I have got both of them working, for doing Chinese in a
LaTeX document.
I think some of these information should go into the man page of cairo_pdf()...
--- On Fri, 28/10/11, Hin-Tak Leung <hintak_le...@yahoo.co.uk> wrote:
> Reading ?RWeaveLatex more carefully,
> I worked out that the outcome I want could be achieved
> without patching R, by having this towards the beginning:
>
> <<custom=hide>>=
> cairo <- function(name, width, height, ...)
> grDevices::cairo_pdf(file = paste(name, "pdf", sep =
> "."),
>
> width = width, height =
> height)
> @
>
> Then declaring grdevice= like this:
>
> <<another1,fig=TRUE,pdf=FALSE,grdevice=cairo,eval=TRUE,width=6,height=3>>=
> grid.text("\u4F60\u597D", y=2/3,
> gp=gpar(fontfamily="CNS1"))
> @
>
> So all is well. is there any chance of either updating
> ?RWeaveLatex with this actual use-case example, or make it
> easier with the attached patch (and updated version of what
> I did, just adding the corresponding documentation)? I
> thought there might be a a use for cairo_ps() as well, but
> then most people who can do latex could do pdflatex,
> especially those who has cairo installed.
>
> FWIW, besides Chinese, I am doing Tibetan and Arabic as
> well - needed/wanted those two for Sichuan (south-western
> China) and Ningxia (northern western, just south of
> Mongolia).
>
> --- On Sun, 23/10/11, Hin-Tak Leung <ht...@users.sourceforge.net>
> wrote:
>
> > --- On Sat, 22/10/11, Prof Brian
> > Ripley <rip...@stats.ox.ac.uk>
> > wrote:
> >
> > > On Sat, 22 Oct 2011, Duncan Murdoch
> > > wrote:
> > >
> > > > 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/1.17.7.11/China_Choropleth_Maps.pdf/download
> > > >>
> > > >> 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.
> > >
> > > And guess what the example in the Sweave manual
> > uses?
> > > cairo_pdf() ...
> >
> > I don't want a new device - I just wanted cairo_pdf()
> to be
> > hooked up to Sweave as an alternative to the default
> pdf().
> > See my later post with the patch against R trunk
> and
> > the worked examples.
> >
> > It looks like cairo_pdf() is just using my current
> > fontconfig settings.
> >
> >
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