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

[Geoff K. <ge...@ka...>]

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