gnuplot-info — For questions and discussion about gnuplot

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

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

Geoff

As far as I remember, postscript teminal has its original font map but does not have unicode compatible font map.
If you want high quality plot in eps format with unicode font, it is better to use epscairo 

gnuplot> help epscairo
 The `epscairo` terminal device generates encapsulated PostScript (*.eps) using
 the cairo and pango support libraries.  cairo version >= 1.6 is required.

 Please read the help for the `pdfcairo` terminal.

Tatsuro



> ----- Original Message -----
> 
> From: "Geoff Kaniuk" <geoff
> To: "gnuplot-info>
> Date: 2022/02/03 木 01:57
> Subject: Re: [Gnuplot-info] plotting points formatted in utf8
> 
> 
> 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
> >>>> gnu...@li...
> >>>> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> >>>>
> >>>
> >>
> > 
> 
> 
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 

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

[James C. <cl...@jh...>]

>>>>> "GK" == Geoff Kaniuk <ge...@ka...> writes:

GK> It is not clear what syntax I should use to express the character.
GK> All of the versions:
GK> 	pt "◎"
GK> 	pt "0x9678"
GK> 	pt "U+25CE"

the other two replies coverred most, but i'll note that that ◎ is not
0x9678.  9678 is the decimal number which matches 0x25CE.

0x9678 (aka U+9678) is the ideograph 陸.

Both "\U+25CE" and "◎" worked fine here (wxt term in x11).

-JimC
-- 
James Cloos <cl...@jh...>         OpenPGP: 0x997A9F17ED7DAEA6

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

[Norwid B. <nb...@ya...>]

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 <ge...@ka...> 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
> >>>> gnu...@li...
> >>>> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> >>>>  
> >>>  
> >>  
> >   
> 
> 
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info

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

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
> >>
> > 
> 

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

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

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_test.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 bullseye ◎
> 
> 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
> 

[Gnuplot-info] plotting points formatted in utf8

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

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 bullseye ◎

What am I missing?

Any help much appreciated

-- 
Geoff

33 Ashbury Close, Cambridge CB1 3RW 01223 710582

Re: [Gnuplot-info] Why for can't print? (and suggestions about help print)

[Ethan M. <eam...@gm...>]

On Sunday, 23 January 2022 05:29:39 PST Marc Chantreux wrote:
> hello people,
> 
> I'm considering using gnuplot to replace bc in some cases.
> 
> There the for loop can be used for ploting and setting things.
> as the help says
> 
>        plot for [filename in "A.dat B.dat C.dat"] filename using 1:2 with lines
>        plot for [basename in "A B C"] basename.".dat" using 1:2 with lines
>        set for [i = 1:10] style line i lc rgb "blue"
>        unset for [tag = 100:200] label tag
> 
> however, it can't be used with print and the do loop requires {} even
> for 1 instruction. so when (what i think as) the "natural way" for
> a gnuplot beginner is
> 
>     f(x) = 2 * x + 3
>     print for [ x = 0:20:2 ] x, f(x)
> 
> i have to write
> 
>     f(x) = 2 * x + 3
>     do for [ x = 0:20:2 ] {print x, f(x) }
> 
> is there an internal/conceptual reason for print to not work like the
> others instructions?

Note that an iteration _inside_ a command is a different thing from 
an iteration _outside_ a command.  For example,
   plot for [i=1:4] f(i,x)        # Produces a single plot with 4 curves
   do for [i=1:4] { plot f(i,x) } # Produces 4 plots each containing 1 curve


It would be possible to support iteration inside a print command
as in your first example above.  But in order to be consistent with 'plot'
it would result in a single line of output, as contrasted with your second
example that produces 11 lines of output.

As to why the program doesn't already support this...
mostly because no one asked for it.
Generic iteration with syntax "for [<iteration spec>] { ... commands ... }"
is sufficient to handle most commands.  There were two commands,
"plot" and "splot", where it seemed worthwhile to add a second form
of iteration specific to that command because it would allow a 
distinctly different result as shown above.  Adding it for "set"
was an afterthought; the benefit was only a small amount of convenience
in composing the command.  

"print" is actually more like "plot" and "splot" than it is like "set". 
So yeah, I think it's a reasonable suggestion and can be treated
as a Feature Request.

	Ethan

Re: [Gnuplot-info] Why for can't print? (and suggestions about help print)

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

Hello

 print "".x. ",".f(x). ",".g(x)

？？

gnuplot> x=12
gnuplot> print "".x
12
gnuplot> x=12.01
gnuplot> print "".x
         internal error : STRING operator applied to undefined or non-STRING variable


The expression "".x seems to be only valid if x is an integer or a string.
The expression " print "".x. ",".f(x). ",".g(x) " are not invalid when x is integer nor string.

Valid statement is 
  print x,", ", f(x), ", " , g(x)
or use "sprintf "as I suggested in the previous mail.
  print sprintf("%f, %f, %f", x, f(x), g(x))

Tatsuro



> ----- Original Message -----
> 
> From: "Marc Chantreux" <mc...@un...>
> To: "gnu...@li..." <gnu...@li...>
> Date: 2022/01/23 日 22:55
> Subject: [Gnuplot-info] Why for can't print? (and suggestions about help print)
> 
> 
> hello people,
> 
> I'm considering using gnuplot to replace bc in some cases.
> 
> There the for loop can be used for ploting and setting things.
> as the help says
> 
>        plot for [filename in "A.dat B.dat C.dat"] filename using 1:2 with lines
>        plot for [basename in "A B C"] basename.".dat" using 1:2 with lines
>        set for [i = 1:10] style line i lc rgb "blue"
>        unset for [tag = 100:200] label tag
> 
> however, it can't be used with print and the do loop requires {} even
> for 1 instruction. so when (what i think as) the "natural way" for
> a gnuplot beginner is
> 
>     f(x) = 2 * x + 3
>     print for [ x = 0:20:2 ] x, f(x)
> 
> i have to write
> 
>     f(x) = 2 * x + 3
>     do for [ x = 0:20:2 ] {print x, f(x) }
> 
> is there an internal/conceptual reason for print to not work like the
> others instructions?
> 
> also: i would like to suggest adding some examples in the gnuplot help
> print section:
> 
>  Syntax:
>        print <expression> {, <expression>, ...}
> 
> to demonstrate that's it's easy to cast a num as string by using "".
> my update should be
> 
>  Syntax:
>        print <expression> {, <expression>, ...}
> 
>  Examples:
> 
>        # print some text data
>        print "hello world"
>        # print some numeric data
>        x=12
>        print 12,x
>        # print combined data (first element *must* be a string)
>        print "".x." was the result"
> 
> also: i would like to know if there is a way to choose the expression
> separator. so i can write
> 
>     print x, f(x), g(x)
> 
> instead of
> 
>     print "".x. ",".f(x). ",".g(x)
> 
> thanks for helping.
> regards,
> 
> -- 
> Marc Chantreux
> Direction du numérique de l'Université de Strasbourg
> Pôle de Calcul et Services Avancés à la Recherche (CESAR)
> http://annuaire.unistra.fr/p/20200
> 
> 
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info

Re: [Gnuplot-info] Why for can't print? (and suggestions about help print)

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

You can write by using sprintf 

print sprintf("%e, %e, %e", x, f(x), g(x))
or 
print(sprintf("%e, %e, %e", x, f(x), g(x)))


Tatsuro

> ----- Original Message -----
> 
> From: "Marc Chantreux" <mc...@un...>
> To: "gnu...@li..." <gnu...@li...>
> Date: 2022/01/23 日 22:55
> Subject: [Gnuplot-info] Why for can't print? (and suggestions about help print)
> 
> 
> hello people,
> 
> I'm considering using gnuplot to replace bc in some cases.
> 
> There the for loop can be used for ploting and setting things.
> as the help says
> 
>        plot for [filename in "A.dat B.dat C.dat"] filename using 1:2 with lines
>        plot for [basename in "A B C"] basename.".dat" using 1:2 with lines
>        set for [i = 1:10] style line i lc rgb "blue"
>        unset for [tag = 100:200] label tag
> 
> however, it can't be used with print and the do loop requires {} even
> for 1 instruction. so when (what i think as) the "natural way" for
> a gnuplot beginner is
> 
>     f(x) = 2 * x + 3
>     print for [ x = 0:20:2 ] x, f(x)
> 
> i have to write
> 
>     f(x) = 2 * x + 3
>     do for [ x = 0:20:2 ] {print x, f(x) }
> 
> is there an internal/conceptual reason for print to not work like the
> others instructions?
> 
> also: i would like to suggest adding some examples in the gnuplot help
> print section:
> 
>  Syntax:
>        print <expression> {, <expression>, ...}
> 
> to demonstrate that's it's easy to cast a num as string by using "".
> my update should be
> 
>  Syntax:
>        print <expression> {, <expression>, ...}
> 
>  Examples:
> 
>        # print some text data
>        print "hello world"
>        # print some numeric data
>        x=12
>        print 12,x
>        # print combined data (first element *must* be a string)
>        print "".x." was the result"
> 
> also: i would like to know if there is a way to choose the expression
> separator. so i can write
> 
>     print x, f(x), g(x)
> 
> instead of
> 
>     print "".x. ",".f(x). ",".g(x)
> 
> thanks for helping.
> regards,
> 
> -- 
> Marc Chantreux
> Direction du numérique de l'Université de Strasbourg
> Pôle de Calcul et Services Avancés à la Recherche (CESAR)
> http://annuaire.unistra.fr/p/20200
> 
> 
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info

Re: [Gnuplot-info] any help on french documentation?

[Ethan M. <eam...@gm...>]

On Sunday, 23 January 2022 05:39:09 PST Marc Chantreux wrote:
> hello ploters,
> 
> most of the links of the french section of "Tutorials and guides"
> 
>     http://www.gnuplot.info/help.html
> 
> are now dead.
> 
> I gave a look to the wayback machine and some of them where really
> good. If I revamp those contents to create a new french guide, would it
> be possible to push it on gnuplot.info ?

Of course.
Submit an updated URL for the revised document to the issue tracker:

   https://sourceforge.net/p/gnuplot/patches/

and/or send it to the development mailing list

   gnu...@li...

If you think it's appropriate that a particular document or
page be included directly on the gnuplot web site, you could
suggest that also.

	Ethan

[Gnuplot-info] Why for can't print? (and suggestions about help print)

[Marc C. <mc...@un...>]

hello people,

I'm considering using gnuplot to replace bc in some cases.

There the for loop can be used for ploting and setting things.
as the help says

       plot for [filename in "A.dat B.dat C.dat"] filename using 1:2 with lines
       plot for [basename in "A B C"] basename.".dat" using 1:2 with lines
       set for [i = 1:10] style line i lc rgb "blue"
       unset for [tag = 100:200] label tag

however, it can't be used with print and the do loop requires {} even
for 1 instruction. so when (what i think as) the "natural way" for
a gnuplot beginner is

    f(x) = 2 * x + 3
    print for [ x = 0:20:2 ] x, f(x)

i have to write

    f(x) = 2 * x + 3
    do for [ x = 0:20:2 ] {print x, f(x) }

is there an internal/conceptual reason for print to not work like the
others instructions?

also: i would like to suggest adding some examples in the gnuplot help
print section:

 Syntax:
       print <expression> {, <expression>, ...}

to demonstrate that's it's easy to cast a num as string by using "".
my update should be

 Syntax:
       print <expression> {, <expression>, ...}

 Examples:

       # print some text data
       print "hello world"
       # print some numeric data
       x=12
       print 12,x
       # print combined data (first element *must* be a string)
       print "".x." was the result"

also: i would like to know if there is a way to choose the expression
separator. so i can write

    print x, f(x), g(x)

instead of

    print "".x. ",".f(x). ",".g(x)

thanks for helping.
regards,

-- 
Marc Chantreux
Direction du numérique de l'Université de Strasbourg
Pôle de Calcul et Services Avancés à la Recherche (CESAR)
http://annuaire.unistra.fr/p/20200

[Gnuplot-info] any help on french documentation?

[Marc C. <mc...@un...>]

hello ploters,

most of the links of the french section of "Tutorials and guides"

    http://www.gnuplot.info/help.html

are now dead.

I gave a look to the wayback machine and some of them where really
good. If I revamp those contents to create a new french guide, would it
be possible to push it on gnuplot.info ?

regards,

-- 
Marc Chantreux
Direction du numérique de l'Université de Strasbourg
Pôle de Calcul et Services Avancés à la Recherche (CESAR)
http://annuaire.unistra.fr/p/20200

Re: [Gnuplot-info] Outputs of fit: details of how they're defined

[Dan H. <dan...@ph...>]

On Mon, 20 Nov 2017, Daniel Hatton via gnuplot-info wrote (among other
things):

> - As long as the prior probability density over parameter space,
> evaluated at the point (L,M) = (l,m), is non-zero, the leading-order
> Laplace's method approximation to the standard deviation of the
> posterior probability distribution for L, marginalized over M, is
> √(2/((∂⁲(χ⁲)/∂L⁲)ₗ¸ₘ-((∂⁲(χ⁲)/(∂L∂M))ₗ¸ₘ)⁲/(∂⁲(χ⁲)/∂M⁲)ₗ¸ₘ)).
> - As long as the prior probability density over parameter space,
> evaluated at the point (L,M) = (l,m), is non-zero, the leading-order
> Laplace's method approximation to the standard deviation of the
> posterior probability distribution for M, marginalized over L, is
> √(2/((∂⁲(χ⁲)/∂M⁲)ₗ¸ₘ-((∂⁲(χ⁲)/(∂L∂M))ₗ¸ₘ)⁲/(∂⁲(χ⁲)/∂L⁲)ₗ¸ₘ)).
...
> I have a sneaking suspicion that the person who wrote the phrase
> "asymptotic standard error", both in the Gnuplot manual and in the
> comments of file <src/fit.c>, in the Gnuplot source code tree, _has_
> seen those two statements or something very like them in a published
> source.  If that person is on this mailing list, it'd be great if
> s/he could provide a reference, please.

I don't know how the gnuplot-info web archive will handle threading
across a four-year gap, but I finally found a reference for those
things:

Tierney et al. (1989), _J. Am. Stat. Assoc._ *84*(407):710-716,
doi:10.1080/01621459.1989.10478824.

Re: [Gnuplot-info] Is 5.4.3 out ?

[Norwid B. <nb...@ya...>]

In section "activities", the sourceforge page[1] lists
gnuplot/5.4.3/gnuplot-5.4.3.tar.gz as an update, just 5h ago. 

Norwid

[1] https://sourceforge.net/projects/gnuplot/

[Gnuplot-info] Is 5.4.3 out ?

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

Today on cygwin64 setup, I found 5.4.3 binaries were prepared.

Then I accessed to the SourceForge page.
https://sourceforge.net/projects/gnuplot/files/gnuplot/5.4.3/

But I could not access any files in the page.

What happens?

Tatsuro

Re: [Gnuplot-info] Plotting glucose levels for diabetes

[Jeremy N. - ml g. <jn....@wi...>]

On 2021-11-23 22:30, Dave Horsfall wrote:

> I now have a working inkjet (it took a while to configure it for my 
> LAN)
> and it occurred to me that if I choose the RGB colours appropriately 
> for
> each "time slot" then not only will they be intuitive on an inkjet (I
> envisage a sort of a light colour getting brighter then fading to dark 
> in
> the form of coloured bars) but will also show up as an appropriate
> greyscale on the laser printer so that I can use either one.

[I'm new to gnuplot, and haven't actually used it yet, but have looked 
at
lots of examples of its use.  I'm expecting to write programs to take
data from elsewhere and generate gnuplot scripts to create charts, also
health-related.  So I've got no practical advice yet.]


Even so... reading this I wondered how much data you were planning to 
put
on each graph?  Just one day's worth, or many days'?

Is the colour gradient supposed to represent time of day, or eg the
width of a (say) 2-hour band of time in the day - both of which are what
I thought you might mean (but don't see the point), or to show levels of
danger from seriously hypo, mildly hypo, normal, hyper etc?

It seems to me that colour, if it's worth using at all, is worth using
to highlight the verging on dangerous or actually dangerous readings.


Regarding your other question about times of day, what's wrong (though 
it
maybe depends on how many days' data are in one chart) with just using
the hour number (from 00 to 23)?

-- 
Jeremy Nicoll - my opinions are my own

[Gnuplot-info] [Solved] Re:qt does not start due to initiarization error (Windows build)

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

I made a directory bin/platforms and copy there qwindows.dll.
gnuplot with qt starred without problem.

Tatsuro

> ----- Original Message -----

> 
> I tried to build gnuplot from souce on windows.
> Build itself was successful and windows, wxt, and qt terminals works if gnuplot is executed in config/mingw directory.
> However, if binary files (program and dynamic link library files) are installed, I was not able to start qt terminal due to the error below
> 
> This application failed to start because no Qt platform plugin
> could be initialized. Reinstalling the application may fix this
> problem.
> 
> Screenshot
> http://tmacchant33.starfree.jp/Files/gnuplot_qt_init.png
> 
> It will be grateful for me if answers or suggestions will be sent.
> 
> Tatsuro
> 
> 
> 
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via: https://lists.sourceforge.net/lists/listinfo/gnuplot-info
> 

[Gnuplot-info] qt does not start due to initiarization error (Windows build)

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

I tried to build gnuplot from souce on windows.
Build itself was successful and windows, wxt, and qt terminals works if gnuplot is executed in config/mingw directory.
However, if binary files (program and dynamic link library files) are installed, I was not able to start qt terminal due to the error below

This application failed to start because no Qt platform plugin
could be initialized. Reinstalling the application may fix this
problem.

Screenshot
http://tmacchant33.starfree.jp/Files/gnuplot_qt_init.png

It will be grateful for me if answers or suggestions will be sent.

Tatsuro

[Gnuplot-info] add -5.5 to gnuplot and gnuplot-x11 (i.e. gnuplot-5.5 and gnuplot-x11-5.5)

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

I would like to add '-5.5' to gnuplot and gnuplot-x11 (i.e. gnuplot-5.5 and gnuplot-x11-5.5)
./.configure --help

Program names:
  --program-prefix=PREFIX            prepend PREFIX to installed program names
  --program-suffix=SUFFIX            append SUFFIX to installed program names
  --program-transform-name=PROGRAM   run sed PROGRAM on installed program names

I tried --program-suffix=SUFFIX but results are not expected.

Please show me thw way.

Tatsuro

Re: [Gnuplot-info] Plotting glucose levels for diabetes

[Dave H. <da...@ho...>]

On Mon, 22 Nov 2021, Hernán De Angelis wrote:

> Gnuplot can handle many different formats for time data and plot. Have a 
> look at pages 58 and 151-152 in the pdf manual. May be you find one that 
> suits you.

Ick; I don't really want to dig through that right now (I'll save it for a 
rainy day), but I did have another idea; please note that I am neither 
asking for nor providing medical advice...

I now have a working inkjet (it took a while to configure it for my LAN) 
and it occurred to me that if I choose the RGB colours appropriately for 
each "time slot" then not only will they be intuitive on an inkjet (I 
envisage a sort of a light colour getting brighter then fading to dark in 
the form of coloured bars) but will also show up as an appropriate 
greyscale on the laser printer so that I can use either one.

Now, graphical arts is not exactly my forté, so what would be suitable RGB 
codes?  At worst I can always dig out a colour wheel and muck around a 
bit...

In other words, I am trying to map RGB colours into corresponding shades 
of grey if that makes sense.

Thanks.

-- Dave

Re: [Gnuplot-info] Plotting glucose levels for diabetes

[Hernán De A. <var...@gm...>]

Gnuplot can handle many different formats for time data and plot. Have a 
look at pages 58 and 151-152 in the pdf manual. May be you find one that 
suits you.

/H.


Den 2021-11-21 kl. 20:18, skrev Dave Horsfall:
> I was recently diagnosed with diabetes (ugh!) and not only do I need 
> to track my glucose levels but also the time of day; the latter is 
> just as important, involving a test two hours after a meal.  The times 
> of the meals are also important; it's not your "Western" diet i.e. 
> three meals/day, but what I may as well call the "Eastern" diet i.e. 
> snacking throughout the day with no major meal.
>
> My GP wants to see a table of this, but I lean towards a plot instead; 
> the application that came with my meter is a bit tricky to interpret.
>
> The problem is how to represent the time; I can think of three ways:
>
> 1) A fractional day; hard to compute and interpret.
>
> 2) Coloured bars; I don't have a working inkjet.
>
> 3) A 3-D graph with the Z axis as the time, resulting in a wiggly line.
>
> Any ideas on how to do it?
>
> Thanks.
>
> -- Dave
>
>
> _______________________________________________
> gnuplot-info mailing list
> gnu...@li...
> Membership management via: 
> https://lists.sourceforge.net/lists/listinfo/gnuplot-info

[Gnuplot-info] Plotting glucose levels for diabetes

[Dave H. <da...@ho...>]

I was recently diagnosed with diabetes (ugh!) and not only do I need to 
track my glucose levels but also the time of day; the latter is just as 
important, involving a test two hours after a meal.  The times of the 
meals are also important; it's not your "Western" diet i.e. three 
meals/day, but what I may as well call the "Eastern" diet i.e. snacking 
throughout the day with no major meal.

My GP wants to see a table of this, but I lean towards a plot instead; the 
application that came with my meter is a bit tricky to interpret.

The problem is how to represent the time; I can think of three ways:

1) A fractional day; hard to compute and interpret.

2) Coloured bars; I don't have a working inkjet.

3) A 3-D graph with the Z axis as the time, resulting in a wiggly line.

Any ideas on how to do it?

Thanks.

-- Dave

[Gnuplot-info] Truncature?

[Patrick D. <pd...@gm...>]

Hello,

Here a set of data (file.asc)

0 34.42904
1 34.42924
2 34.42965
3 34.43026
4 34.43106
5 34.43207
6 34.43329
7 34.43469
8 34.43632
9 34.43814
10 34.44017

I wish to fit them with
dep (x, a) = x * a

I can do
1) 
fit Off + dep (x, slope) "file.asc" u ($1*($1+1)):2 via Off, slope
and I get
final sum of squares of residuals : 2.94071e-10
Off            = 34.429           +/- 2.581e-06    (7.496e-06%)
slope           = 0.000101126      +/- 4.802e-08    (0.04749%)

with
Off = 34.429039486

2)
set table $DATA; plot "file.asc" u ($1*($1+1)):($2) "%lf %lf" with table ; unset table
fit Off + dep (x, slope) $DATA u 1:2 via Off, slope
and I get
final sum of squares of residuals : 1.36307e-08
Off            = 34.429           +/- 1.757e-05    (5.103e-05%)
slope           = 0.000101045      +/- 3.27e-07     (0.3236%)

with
Off = 34.4290491247


Option 1) is correct, but not option 2)

Why?

Thanks

===========================================================================
 Patrick DUPRÉ                                 | | email: pd...@gm...
 Laboratoire interdisciplinaire Carnot de Bourgogne
 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
 Tel: +33 (0)380395988                    | | Room# D114A
===========================================================================

[Gnuplot-info] Out file

[Patrick D. <pd...@gm...>]

Hello,

If I do

set table "out_HW.asc"; plot [-10.5:10.5] '+' u 1:(HW (x, mu_0, C, D, E)); unset table
I get a header, like:
# Curve 0 of 1, 1051 points
# Curve title: "'+' u 1:(HW (x, mu_0, C, D, E))"
# x y type
-10.5  0.0667414  i
.....

If I do:
set table "out_HW.asc"; plot [-10.5:10.5] '+' u 1:(HW (x, mu_0, C, D, E)) with table ; unset table 

I get:
 -10.5	 0.0667414
 -10.48	 0.0667415
.....

How can I get also the header with this format?

===========================================================================
 Patrick DUPRÉ                                 | | email: pd...@gm...
 Laboratoire interdisciplinaire Carnot de Bourgogne
 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
 Tel: +33 (0)380395988                    | | Room# D114A
===========================================================================