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From: Chris Elvidge <chris@mshome.net>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: Version 5.2 patchlevel 6
Date: Sat, 23 Feb 2019 15:39:41 +0000
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On 23/02/2019 11:42, Chris Elvidge wrote:
> On 23/02/2019 06:04, Ethan Merritt wrote:
>> On Fri, 22 Feb 2019 21:34:37 -0800, Savin Beniwal wrote:
>>
>>> On Friday, 22 February 2019 21:08:08 UTC+5:30, Chris Elvidge  wrote:
>>>> Hi all.
>>>>
>>>> Does anyone know how to get a degree sign (°) on svg enhanced terminal,
>>>> output file.svg
>>
>> SVG is natively in UTF-8 encoding.
>> You should set gnuplot to match.
>> (Actually you should set gnuplot to use UTF8 always unless there
>>   is some special reason not to).
>>
>> gnuplot> set encoding utf8
>> gnuplot> show decimal
>>          decimalsign for input is  .
>>          decimalsign for output has default value (normally '.')
>>          degree sign for output is °
>>
>>
>>> Dear Chris!!!
>>> Have you tried with  {/Symbol \260} ? I think it works well.
>>> Savin
>>
>> No, sorry. That won't work.
>> Symbol \260 assumes the encoding is Adobe Special Symbol,
>> which is basically only preferred for PostScript output.
>> I don't think you can get SVG to use that encoding.
>>
>>
>>     cheers
>>
>>         Ethan
>>
> 
> Thanks Ethan. I (now) have:
> 
> (I thought that Verdana might be causing a problem, so I put in the full 
> path; and I've changed the definition of dg to
> dg=" `/usr/bin/printf "\u00B0"`C")
> 
> gnuplot> load 'gpts/gnuplot_temp_24.gpt'
> gnuplot> show term
> 
>     terminal type is svg size 1100,500 dynamic enhanced font 
> '/usr/share/fonts/microsoft/verdana,12' butt dashlength 1.0
> 
> gnuplot> show encoding
> 
>          nominal character encoding is utf8
>          however LC_CTYPE in current locale is en_GB.UTF-8
> 
> gnuplot> show decimal
> 
>          decimalsign for input is  .
>          decimalsign for output has default value (normally '.')
>          degree sign for output is °
> 
> gnuplot> print nt
> 74.7 ଀C
> gnuplot> print NT
> 74.65
> gnuplot> nt=sprintf("%.1f",NT)." `/usr/bin/printf "\u00B0"`C"
> gnuplot> print nt
> 74.7 °C
> 
> So the degree sign somehow disappears during plotting.
> On the plot that small square thing is there, too.
> At least now I get something instead of nothing.
> Is this a good thing?
> 
> But, how do I get the degree sign to stick? Or how do I set it in a 
> format string? Or how do I print it?
> 
> Thanks
> Cheers
> 
> 
I know I shouldn't reply to myself, but I just managed this:

set ylabel "Temperature (`/usr/bin/printf "\u00B0"`C)"
actually gives me:
Temperature (°C)

-- 

Chris Elvidge, England