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Groups > comp.graphics.apps.gnuplot > #4465

Re: Greek Characters in GnuPlot EPS output files

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On 12/04/2022 06:59, Jörg Buchholz wrote:
> On 11.04.2022 18:21, Martin Brown wrote:
>> On 11/04/2022 08:46, Jörg Buchholz wrote:
>>> On 07.04.2022 15:22, Martin Brown wrote:
>>>> I'm very much a beginner with Gnuplot and although I can get it to do
>>>> most things now. But I have struggled totally with getting Greek
>>>> characters alpha, beta, gamma, delta and pi to render.
>>>>
>>>> I need to produce Postscript graph output for publication and it has to
>>>> work with MNRAS manuscript templates. I can examine the EPS output from
>>>> enhanced mode and see the following plausible encoding in the text but
>>>> it still renders as ASCII characters when the LaTex processes it.
>>>>
>>>> setrgbcolor
>>>> 3106 1050 M
>>>> [ /Symbol reencodeCP1252 def
>>>> [(Symbol) 140.0 0.0 true true 0 (a)]
>>>> [(Helvetica) 140.0 0.0 true true 0 (=0.5, )]
>>>> [(Symbol) 140.0 0.0 true true 0 (g)]
>>>> [(Helvetica) 140.0 0.0 true true 0 (=0.2)]
>>>> ]
>>>
>>> What termina ldo you use for the output?
>>>
>>> set label "{/Symbol a b c d e}" at 0.5,0.5
>>> set term post enhanced
>>> set out 'ps-test-greek.ps'
>>> plot sin(x)
>>> set out
>>>
>>> produce a graph with Greek characters as a Postscript-File. You must
>>> used the enhanced option for this.
>>
>> Thanks for your help and the suggested example. I suspect there must be
>> a font missing somewhere but I don't know where or how to provide it.
>>
>> I see exactly the same thing rendered with your example as with mine.
>>
>> It renders without any reported errors and I see 5 faint black line
>> rectangles where the labels should be starting at (0.0, 0.5). I estimate
>> the line width of the rectangles to be about 1/3 that of the sine curve.
>>   _
>> |_|
> 
> Do you have Greek characters in other Software? In a word processing
> software? What is your OS and what version of gnuplot do you use.

OS Win 7 64bit sp1
Gnuplot Version 5.4 patchlevel 1
> 
> I agree with you, it sounds like a generally font problem on your machine.

Where does "Symbol.*" or "CP1252.ps" reside on your machine?

I had a poke around in gnuplot\share\postscript and noticed that 
cp1252.ps exists there but it is spelt out in lower case where the 
reference above is in uppercase. So I wonder if there is a Unix dislike 
of MS file systems getting in the way somewhere.

I tried renaming it to CP1252.ps (no joy)

It is only in Gnuplot that Greek stubbornly refuses to appear :(
And its output renders as if the font didn't exist.

> If your LaTeX can produce Greek characters you can use the the
> "cairolatex" terminal. Then the labels will generated by LaTeX.
> 
> Example:
> set label '{${\alpha \beta \gamma \delta}$}' at 0.5,0.5
> set term cairolatex eps standalone
> set out 'greek-eps-latex.tex'
> plot sin(x)
> set out
> 
> Than you get a eps-file without any labels and a tex-file with the
> labels. If you compile the tex_file (something like "pdflatex
> greek-eps-latex.tex") you get a pdf-file with the graph and the labels.

Thank you for your help. Yes this works OK.

I had to download package transparent but then it was flawless.
MiKTex happily turned it into the expected form Greek letters and all.

I suspect now that there is something font related missing from my 
MiKTex 2.9 install. I tried looking in its fonts directory but found a 
maze of confusing little passageways all alike. No CP*.ps files at all.
Subdirectories
  afm, cmap, end, map, misc, opentype, pfm, source, tfm, type1, vf

Thanks again for your help Jorg.

-- 
Regards,
Martin Brown

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Greek Characters in GnuPlot EPS output files Martin Brown <'''newspam'''@nonad.co.uk> - 2022-04-07 14:22 +0100
  Re: Greek Characters in GnuPlot EPS output files Jörg Buchholz <bookwood4new@freenet.de> - 2022-04-11 09:46 +0200
    Re: Greek Characters in GnuPlot EPS output files Martin Brown <'''newspam'''@nonad.co.uk> - 2022-04-11 17:21 +0100
      Re: Greek Characters in GnuPlot EPS output files Jörg Buchholz <bookwood4new@freenet.de> - 2022-04-12 07:59 +0200
        Re: Greek Characters in GnuPlot EPS output files Martin Brown <'''newspam'''@nonad.co.uk> - 2022-04-12 18:01 +0100
          Re: Greek Characters in GnuPlot EPS output files Jörg Buchholz <bookwood4new@freenet.de> - 2022-04-13 07:48 +0200
            Re: Greek Characters in GnuPlot EPS output files Martin Brown <'''newspam'''@nonad.co.uk> - 2022-04-13 16:57 +0100
              Re: Greek Characters in GnuPlot EPS output files Jörg Buchholz <bookwood4new@freenet.de> - 2022-04-14 13:57 +0200
                Re: Greek Characters in GnuPlot EPS output files Martin Brown <'''newspam'''@nonad.co.uk> - 2022-04-16 11:47 +0100
                Re: Greek Characters in GnuPlot EPS output files Jörg Buchholz <bookwood4new@freenet.de> - 2022-04-19 06:55 +0200

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