On 20 October 2017 at 04:21, John <miao...@gmail.com> wrote:
>
> Hi,
>
> Following Paul's instruction, I have installed the Cairo. I tried to
run
> the program, and there is no error message at all. I did see the Chinese
> title in the plot if I ask my RStudio to show the plot (if I type "p1"),
> but the pdf file shows the plots without the Chinese titles.
[...]
>
> cairo_pdf("test_plot_chinese.pdf")
> print(m2)
> dev.off()
>
The help page for cairo_pdf says: "
‘cairo_pdf’ and ‘cairo_ps’ sometimes record _bitmaps_ and not vector
graphics. On the other hand, they can (on suitable platforms) include a
much
wider range of UTF-8 glyphs, and embed the fonts used.
"
I am not sure what sometimes means but maybe the fonts are not embedded in
the pdf-file?
try:
embed_fonts('test_plot_chinese.pdf')
note that it might fails if you haven't installed gs (ghostscript)
Regards
Martin
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