Re: [Gnuplot-info] pdfcairo or pdf output font fails with Adobe Illustrator

[James C. <clo...@jh...>]

>>>>> "AC" == Andres Cimmarusti <aci...@gm...> writes:

AC> Yes I do have [Arial] installed (I have installed the package
AC> ttf-mscorefonts-installer):

D'oh.  I entirely forgot about the mscorefonts-installer package....

>> Can you provide an example pdf from each terminal?

AC> Attached.

They both come from the pdfcairo terminal.  Gnuplot will autocomplete
terminal names, so if one asks for pdf but only pdfcairo is compiled in,
one gets pdfcairo.

AC> Correct me if I'm wrong,

No.  You reasoned correctly.

AC> but I feel the problem here maybe slightly different.

Having now seen the pdfs, your hypothesis is exacly correct.

AC> I'm using some greek symbols (for tau and mu in the y and x
AC> labels respectively) and I think gnuplot doesn't find these special
AC> letters in Arial so it chooses the other fonts to compensate.

I looked at the embedded fonts; the μ is from Vera and the τ from Deja.

AC> I see. So even now that I know Arial is included, it keeps failing. Is
AC> is because it says ArialMT? why would it say ArialMT in any case? (my
AC> script calls for plain Arial...unfortunately this is font of choice of
AC> my collaborators).

The MT is for Monotype, the foundry from which MS licensed Arial.
Illustrator shouldn't have a problem with that.  If you have
lcd-typetools installed, I'd bet that

otfinfo -p arial.ttf

will show that the font's PostScript Name is ArialMT.  otfinfo's -i
option should give additional info.

If Debian's mscorefonts-installer uses the fonts from:

http://corefonts.sourceforge.net/

then it should have mu and tau glyphs.  If you have it installed,

xfd -fa Arial

should show the glyphs supported by your version of Arial; you can use
lsof(8) or look in /proc/$(pidof xfd)/maps to confirm that is has loaded
the right font file.  If you [Next] to the 0x0300 page it should have
Hellenic glyphs.  I don't know why pango ignores those in favour of ones
from the Sans alias.

Do you run gnuplot in a utf-8 locale?  If not, that may be why.

If so, it could be a bug in the pdfcairo terminal.

I just tried (with cairo and gnuplot from their git repos) in en_US.UTF-8.
A simple plot:

set term pdf enh font 'Arial,16'
set out "myt.pdf"
set label "Ελλενικα"
plot sin(x)+2*cos(x)

resulted in Arial for the mu and tau:

:; pdffonts myt.pdf
name            type          encoding    emb sub uni object ID
--------------- ------------- ----------- --- --- --- ---------
OLTWPV+ArialMT  TrueType      WinAnsi     yes yes yes      5  0
NUXGAE+ArialMT  CID TrueType  Identity-H  yes yes yes      6  0

It looks like you either need to switch to a utf-8 locale or newer
version(s) of gnuplot and/or cairo.

-JimC
-- 
James Cloos <cl...@jh...>         OpenPGP: 1024D/ED7DAEA6