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Groups > comp.graphics.apps.gnuplot > #2230

Re: Formatting Unicode symbol in a label

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Dan'l B wrote:

> On Saturday, January 4, 2014 1:32:56 PM UTC+1, Dan'l B wrote:
>> Given a line such as
>> 
>> "" u (myDateSP(1,2)):3:((strcol(4) eq "First") ?  ("U+1F311"):1/0) w
>> labels left font "Arial Unicode MS,18" offset -4,0,\
>> 
>> How do I insert the Unicode codepoint for a quarter moon symbol (for
>> example)? The above formatting doesn't work.
>> 
>> Arial Unicode MS includes that unicode character. Times New Roman PSMT
>> also supports it; both are available on my system.
>> 
>> OSX 10.6.8
>> GN   4.6 patchlevel 4
>> pdfcairo installed
>> using PDF terminal
> 
> Turns out that the Symbola font includes all the unicode glyphs for moon
> phases.
> 
> Can anyone illuminate me about why the following problem might occur? In
> these labels, the last two work, the first two do not when outputting to
> PDFcairo terminal. They all appear in the OSX Font Book, and when inserted
> as symbols into the BBedit command file, the symbols appear correctly; the
> BBedit file is saved as UTF8; UTF8 is set in the terminal. The SVG
> terminal displays all the characters properly; the Aqua terminal displays
> only the First and Last Quarters properly; EPS and PDF terminals do not
> display any of the four:
> 
> "" u (myDateSP(1,2)):3:((strcol(4) eq "New") ?  ("🌑"):1/0) w labels left
> font "Symbola,28" offset -4,0,\
> "" u (myDateSP(1,2)):3:((strcol(4) eq "Full") ?  ("🌕"):1/0) w labels left
> font "Symbola,28" offset -4,0,\
> "" u (myDateSP(1,2)):3:((strcol(4) eq "First") ?  ("☽"):1/0) w labels left
> font "Symbola,28" offset -4,0,\
> "" u (myDateSP(1,2)):3:((strcol(4) eq "Last") ?  ("☾"):1/0) w labels left
> font "Symbola,28" offset -4,0,\


The UTF sequences in your 3rd and 4th commands are indeed
 ☽ Unicode 263D UTF8 0xE2 0x98 0xBD first quarter moon
 ☾ Unicode 263E UTF8 0xE2 0x98 0xBE last quarter moon
and they display correctly here on my screen as I read your post.

The sequences in your 1st and 2nd commands are not displayed
correctly here but a hex dump shows that they are
Unicode 01F311 UTF8 0xF0 0x9F 0x8C 0x91
Unicode 01F315 UTF8 0xF0 0x9F 0x8C 0x95
These lie on a higher page of the Unicode tables and were added to
the standard in Unicode 6.0 (released Oct 2010).  So I can easily
believe that many environments do not yet support them,
including my desktop display.

Maybe you can use instead
 ⬤ Unicode 2B24 UTF8  0xE2 0xAC 0xA4 Large Black Circle
 ◯ Unicode 25EF UTF8 0xE2 0x97 0xAF Large Circle

> 
> Neither of these terminal setups seems to help:
> 
> set terminal pdfcairo enhanced size 13.5,9.8
> set term pdfcairo enhanced  font "Symbola" size 13.5,9.8

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Thread

Formatting Unicode symbol in a label "Dan'l B" <dan.hinckley@gmail.com> - 2014-01-04 04:32 -0800
  Re: Formatting Unicode symbol in a label Karl <mail.kfr@gmx.net> - 2014-01-04 18:16 +0100
  Re: Formatting Unicode symbol in a label Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2014-01-04 19:09 +0100
  Re: Formatting Unicode symbol in a label "Dan'l B" <dan.hinckley@gmail.com> - 2014-01-04 23:56 -0800
    Re: Formatting Unicode symbol in a label Karl <mail.kfr@gmx.net> - 2014-01-05 18:44 +0100
  Re: Formatting Unicode symbol in a label "Dan'l B" <dan.hinckley@gmail.com> - 2014-01-05 00:05 -0800
    Re: Formatting Unicode symbol in a label Karl <mail.kfr@gmx.net> - 2014-01-05 18:28 +0100
  Re: Formatting Unicode symbol in a label "Dan'l B" <dan.hinckley@gmail.com> - 2014-01-05 18:08 -0800
  Re: Formatting Unicode symbol in a label "Dan'l B" <dan.hinckley@gmail.com> - 2014-01-07 08:22 -0800
    Re: Formatting Unicode symbol in a label Ethan A Merritt <merritt@u.washington.edu> - 2014-01-07 13:18 -0800
      Re: Formatting Unicode symbol in a label "Dan'l B" <dan.hinckley@gmail.com> - 2014-01-07 23:59 -0800
  Re: Formatting Unicode symbol in a label "Dan'l B" <dan.hinckley@gmail.com> - 2014-01-07 08:28 -0800

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