Re: plotting points formatted in utf8

Unicode support of postscript terminal should be comfirmed because of view result of inkscape by Norwid.]

I will make in another post in the beta ML.

Tatsuro 

> ----- Original Message -----
> 
> From: "Norwid Behrnd via gnuplot-info" t>
> To: "Geoff Kaniuk" <geoff>
> Cc: "gnuplot-info
> Date: 2022/02/03 木 02:54
> Subject: Re: [Gnuplot-info] plotting points formatted in utf8
> 
> 
> Hello Tatsuro,
> 
> I speculate the bullseys are present when running the script shared
> by Geoff; their display however depends on the device used.
> 
> For reference: Linux Debian 12/bookworm, branch testing, with Gnuplot
> from the distro repositories (i.e., Version 5.4 patchlevel 2, last
> modified 2021-06-01).
> 
> After addition of the executable bit with chmod, briefly gnuplot's
> interface was seen, yet disappeared in less than a second, right
> after the creation of file `test-pt.eps`.
> 
> In the preview of the file browser (thunar 4.16.10, xfce4 desktop),
> no marks are seen.  This might be a matter of scale.  Evince
> (verson 41.3) displays only the hash tags on the third trace.
> 
> With Inkscape (version 1.1.1), the bullseyes eventually are visible by
> adjusting the parameters how to read the files: disable the option to
> replace pdf-fonts, then change from poppler/cairo import (default) to
> internal import.
> 
> A few screen photos taken are deposit here:
> 
> https://justpaste.it/8if03
> 
> /Maybe/ generating the diagram for one of the terminals aware of
> LaTeX/PSTricks/tikz is a more reliable approach, because the `\odot`
> character (mathmode) bears similarities to the bullseye.
> 
> Norwid
> 
> Norwid
> 
> On Wed, 2 Feb 2022 16:56:06 +0000
> Geoff Kaniuk <[email protected]> wrote:
> 
> > Hello Tatsuro,
> > 
> > Sorry, my reply-to was not set. The correction you mentioned was 
> > actually the first variant I tried.
> > 
> > I have now repeated the test with pt "\U+25CE" in terminal wxt and also 
> > added the font specification to set terminal. This gives me the bullseye 
> > in the Gnuplot display, but not in the .eps file.
> > 
> > I have created a test script and a screenshot:
> > 
> > SCRIPT
> > http://kaniuk.co.uk/tests/test-unicode.gp
> > 
> > SCREENSHOT
> > http://kaniuk.co.uk/tests/test-unicode-GK.png
> > 
> > This shows the output on the Gnuplot display and also the resulting .eps 
> > file.
> > 
> > So some progress - Thanks!
> > 
> > Geoff
> > 
> > 33 Ashbury Close, Cambridge CB1 3RW 01223 710582
> > 
> > On 02/02/2022 08:51, Tatsuro MATSUOKA wrote:
> > > Hello Geoff
> > > 
> > > Please keep replying to the mailing list.
> > > 
> > > I found the mistakes of your command.
> > > 
> > > pt "U+25CE"
> > > 
> > > should be
> > > 
> > > pt "\U+25CE"
> > > 
> > > (back slash "\" is forgotten)
> > > 
> > > For me, pt  "◎" and  pt "\U+25CE" are coincident.
> > > 
> > > reset session
> > > set encoding utf8
> > > set terminal wxt nopersist enhanced font 'Dejavu Sans' # font selection seems to be important
> > > set sample 20
> > > plot -x w p pt  "◎", \
> > > -0.8 * x w p pt "0x9678" , \
> > > -0.6 * x w p pt "\U+25CE"
> > > 
> > > See
> > > http://tmacchant33.starfree.jp/Files/unicode_test2.png
> > > 
> > > As I wrote in the comment in the script, the font selection seem to be important.
> > > If I use 'Arial' font instead of 'Dejavu Sans' font, I got broken plot
> > > 
> > > http://tmacchant33.starfree.jp/Files/unicode_test3.png
> > > 
> > > Arial font does not support Bulls eye charrcter.
> > > 
> > > I am windows user and see windows font map using windows tool.
> > > You are Debian user and on debian has similar tool to see font map and may select proper font.
> > > 
> > > Tatsuro
> > > 
> > >   
> > >> ----- Original Message -----
> > >> <geoff
> > >> To: "Tatsuro MATSUOKA"
> > >> Date: 2022/02/02 水 07:32
> > >> Subject: Re: [Gnuplot-info] plotting points formatted in utf8
> > >>
> > >>
> > >> Thank you so much for the test case.  I have repeated your test on my
> > >> Linux system including  producing the .eps file
> > >>
> > >> I get the same results as you for the hex and unicode syntax
> > >>
> > >> However for
> > >>    plot x w p pt  "◎"
> > >>
> > >> I get:
> > >>
> > >> Gnuplot 1:	accented letter a circumflex followed by faint box
> > >> .eps		no plotted points
> > >>
> > >> I get exactly the same results with terminal wxt.  There must be some
> > >> fundamental setting or mapping I am missing
> > >>
> > >> Geoff
> > >>
> > >> 33 Ashbury Close, Cambridge CB1 3RW 01223 710582
> > >>
> > >> On 01/02/2022 20:40, Tatsuro MATSUOKA wrote:  
> > >>> I tried the following script on 5.4.3 and 5.5 (last modified 2022-01-29) on cygwin
> > >>> also tried 5.2.8 on windows (I do not have version 5.2 on cygwin) with wxt terminal.
> > >>>
> > >>> The results are the same.
> > >>> The screenshot the below was taken on 5.4.3.
> > >>> http://tmacchant33.starfree.jp/Files/unicode_test2.png
> > >>>
> > >>> Used script is
> > >>>
> > >>> # begin
> > >>> reset session
> > >>> 	set encoding utf8
> > >>> 	set terminal x11 1 nopersist enhanced
> > >>> set sample 20
> > >>> plot x w p pt  "◎", \
> > >>> 0.8 * x w p pt "0x9678" , \
> > >>> 0.6 * x w p pt "U+25CE"
> > >>>    # end
> > >>>
> > >>> For 5.2.8 on windows, I used the wxt terminal instead of the x11 terminal.
> > >>>
> > >>> Tatsuro  
> > >>>> ----- Original Message -----
> > >>>>
> > >>>> From: "Geoff Kaniuk"
> > >>>> To: "gnuplot-info
> > >>>> Date: 2022/02/02 水 03:15
> > >>>> Subject: [Gnuplot-info] plotting points formatted in utf8
> > >>>>
> > >>>>
> > >>>> I am trying to plot points specified in utf8 using the pt "..." option
> > >>>> as mentioned in the gnuplot manual. I am using gnuplot v5.2 running in
> > >>>> Debian Buster.
> > >>>>
> > >>>> My settings are:
> > >>>> 	reset session
> > >>>> 	set encoding utf8
> > >>>> 	set terminal x11 1 nopersist enhanced
> > >>>>
> > >>>> As an example I tried the Bullseye point:
> > >>>> ◎  9678(hex)   25CE(utf8)
> > >>>>
> > >>>> It is not clear what syntax I should use to express the character.
> > >>>> All of the versions:
> > >>>> 	pt "◎"
> > >>>> 	pt "0x9678"
> > >>>> 	pt "U+25CE"
> > >>>>
> > >>>> failed to plot the
> > >>>>
> > >>>> What am I missing?
> > >>>>
> > >>>> Any help much appreciated
> > >>>>
> > >>>> -- 
> > >>>> Geoff
> > >>>>
> > >>>> 33 Ashbury Close, Cambridge CB1 3RW 01223 710582
> > >>>>
> > >>>>
> > >>>> _______________________________________________
> > >>>> gnuplot-info mailing list
> > >>>> [email protected]
> > >>>> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> > >>>>  
> > >>>  
> > >>  
> > >   
> > 
> > 
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> 
> 
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