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From: Martin Brown <'''newspam'''@nonad.co.uk>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: Greek Characters in GnuPlot EPS output files
Date: Mon, 11 Apr 2022 17:21:50 +0100
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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.
  _
|_|

Possible progress... I tried deliberately setting a mode that I didn't 
expect to work "terminal jpeg enhanced" and got the following error msg:

set terminal jpeg enhanced
set out "ps-test.jpg"
plot sin(x)

gdImageStringFT: No character set found while printing string a b c d e 
with font Symbol.

In addition Gnupolt crashes fatally when I try to copy that error 
message. I'm still stuck and very confused as to what is wrong.


-- 
Regards,
Martin Brown