Re: [Gnuplot-info] plotting points formatted in utf8

[Tatsuro M. <tma...@ya...>]

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
> >> gnu...@li...
> >> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> >>
> > 
>