gnuplot-beta — Developers and beta testers of new gnuplot code

Re: Necessary Libraries

[Hans-Bernhard B. <br...@ph...>]

On Tue, 9 Mar 2004, Harald Harders wrote:

> 
> Thank you all for your answers. But shouldn't we really prepare a file
> requirements.txt or a section Requirements in the README where all
> needed third-party libraries are listed? 

Yes, but not in README.  This belongs into INSTALL.  They already are
listed there, but not in all the necessary detail, and the text is
outdated, and that's where it belongs.  INSTALL is where people building
the program from sources are supposed to look --- README is for users, not
builders.

> PS: I have tried to avoid all Umlauts. I hope this mail will be sent as it
> is, now.

It works.


-- 
Hans-Bernhard Broeker (br...@ph...)
Even if all the snow were burnt, ashes would remain.

Re: Necessary Libraries

[Harald H. <h.h...@tu...>]

Thank you all for your answers. But shouldn't we really prepare a file
requirements.txt or a section Requirements in the README where all
needed third-party libraries are listed? It could be possible to write the
library information into the *.trm files with a special format and to
generate the "Requirements" section automatically, e.g. by using grep.

Yours
Harald

PS: I have tried to avoid all Umlauts. I hope this mail will be sent as it
is, now.

-- 
Harald Harders                           Langer Kamp 8
Technische Universitaet Braunschweig     D-38106 Braunschweig
Institut fuer Werkstoffe                 Germany
E-Mail: h.h...@tu...               Tel: +49 (5 31) 3 91-3062
WWW   : http://www.ifw.tu-bs.de          Fax: +49 (5 31) 3 91-3058

Re: Necessary Libraries

[Petr M. <mi...@ph...>]

> And a last short question: Have my several patches in the last years
> been enough that my name will be added to the list of contributors?

IMHO, people listed in docs/titlepage* are those spending an enormous amount
of time on gnuplot development (new features, patches, documentation,
reviews of work of others), support, and other activities over a period of
at least several years.

People kindly contributing patches (incl. new features) get the proper
credit in ChangeLog file.

---
PM

Re: Necessary Libraries

[Hans-Bernhard B. <br...@ph...>]

On Mon, 8 Mar 2004, Petr Mikulik wrote:

> > Have you been able to read all of my mail? Hans-Bernhard has reported,
> > that he only could read until half of the mail.
> 
> Neither me -- the following is printed by pine:
[...]
>    [Error: Formatting error: Non-hexadecimal character in QP encoding]

I've since diagnosed the problem a little deeper and submitted a SF
support request about it.  The problem is with the sponsor ads SF's
mailing list processor appends to mails.  They may contain '=' characters,
which break mail bodies encoded as quoted-printable, where '=' is an
escape character.

-- 
Hans-Bernhard Broeker (br...@ph...)
Even if all the snow were burnt, ashes would remain.

Re: Necessary Libraries

[Petr M. <mi...@ph...>]

> second). Ah, I am missing libgd.so. May be, this is the problem. And, gd.h
> is missing, too. I first will reinstall that and ask again, if necessary.

As others told you about gd-devel rpm package

> I don't understand why my libgd is not totally installed. I think,
> my SuSE 8.2 is the last SuSE on my computers, it is getting worse form
> version to version.

I don't think so -- no problems for me (since 8.0)

> Have you been able to read all of my mail? Hans-Bernhard has reported,
> that he only could read until half of the mail.

Neither me -- the following is printed by pine:


Yours
Harald

--
Harald Harders                           Langer Kamp
   [Error: Formatting error: Non-hexadecimal character in QP encoding]




There were similar problems with Ethan's mail some time ago, but it's gone
now.

---
PM

Re: Necessary Libraries

[Ethan M. <merritt@u.washington.edu>]

On Monday 08 March 2004 08:35 am, Harald Harders wrote:
>
> "rpm --query gd" gives me "gd-2.0.11-26" which, according to gd.trm,
> should work. In /usr/lib, I find the following files: libgd.so.2,
> libgd.so.2.0.0 (where in fact, the first is a symbolic link to the
> second). Ah, I am missing libgd.so. May be, this is the problem. And,
> gd.h is missing, too.

Yes.  You need both libgd.so and gd.h
However, I recommend that you download version 2.0.21 from
boutell.com, and built from source.  Version 2.0.21 is the first to
correctly support symbol font encoding, which is needed for full
support of enhanced text mode in gnuplot.

> I first will reinstall that and ask again, if 
> necessary. I don't understand why my libgd is not totally installed. I
> think, my SuSE 8.2 is the last SuSE on my computers, it is getting worse
> form version to version.

I do not know how SuSE arrange their packages, but Mandrake and
Redhat both split libraries into two packages. The base package
contains the library itself and is suitable for use by pre-built applications.
The second rpm is called whatever-devel-xxx.rpm and contains the
header files (*.h) and the additional library definitions needed to
build new programs.

-- 
Ethan A Merritt       merritt@u.washington.edu
Biomolecular Structure Center    (206)543-1421
Mailstop 357742
University of Washington, Seattle, WA 98195

Re: Necessary Libraries

[Lars H. <lhe...@us...>]

> "rpm --query gd" gives me "gd-2.0.11-26" which, according to gd.trm,
> should work. In /usr/lib, I find the following files: libgd.so.2,
> libgd.so.2.0.0 (where in fact, the first is a symbolic link to the
> second). Ah, I am missing libgd.so. May be, this is the problem. And, gd.h
> is missing, too. I first will reinstall that and ask again, if necessary.
> I don't understand why my libgd is not totally installed. I think,
> my SuSE 8.2 is the last SuSE on my computers, it is getting worse form
> version to version.
 
 You need to install gd-devel, or whatever it's called, it contains gd.h
 and libgd.a.

Re: Necessary Libraries

[Harald H. <h.h...@tu...>]

On Mon, 8 Mar 2004, Lars Hecking wrote:

> > I have some problems compiling the current cvs version of gnuplot.
> > configure does not find the libraries libgd and libpdf.
> >
> > libgd: is installed, version 2.0.
> >
> > libpdf: is not installed (thus configure does the right job here).
> >
> > Thus, I have to different problems:
> > - Why does gnuplot reject to work with my gd library?
>
>  You have to provide more detail. We cannot guess what isn't working
>  on your system.

No problem:

"rpm --query gd" gives me "gd-2.0.11-26" which, according to gd.trm,
should work. In /usr/lib, I find the following files: libgd.so.2,
libgd.so.2.0.0 (where in fact, the first is a symbolic link to the
second). Ah, I am missing libgd.so. May be, this is the problem. And, gd.h
is missing, too. I first will reinstall that and ask again, if necessary.
I don't understand why my libgd is not totally installed. I think,
my SuSE 8.2 is the last SuSE on my computers, it is getting worse form
version to version.

As Hans-Bernhard has told me, the information which library to use is
stored in the *.trm files. That is a good place for the developers, but I
think we should prepare another file for users who want to compile gnuplot
for themselves. They will hardly look into the trm files.

Have you been able to read all of my mail? Hans-Bernhard has reported,
that he only could read until half of the mail.

Thank you for the quick answer,
Harald

--=20
Harald Harders                           Langer Kamp 8
Technische Universit=E4t Braunschweig      D-38106 Braunschweig
Institut f=FCr Werkstoffe                  Germany
E-Mail: h.h...@tu...               Tel: +49 (5 31) 3 91-3062
WWW   : http://www.ifw.tu-bs.de          Fax: +49 (5 31) 3 91-3058

Re: Necessary Libraries

[Lars H. <lhe...@us...>]

Harald Harders writes:
> Hello everybody,
> 
> I have some problems compiling the current cvs version of gnuplot.
> configure does not find the libraries libgd and libpdf.
> 
> libgd: is installed, version 2.0.
> 
> libpdf: is not installed (thus configure does the right job here).
> 
> Thus, I have to different problems:
> - Why does gnuplot reject to work with my gd library?

 You have to provide more detail. We cannot guess what isn't working
 on your system.

Necessary Libraries

[Harald H. <h.h...@tu...>]

Hello everybody,

I have some problems compiling the current cvs version of gnuplot.
configure does not find the libraries libgd and libpdf.

libgd: is installed, version 2.0.

libpdf: is not installed (thus configure does the right job here).

Thus, I have to different problems:
- Why does gnuplot reject to work with my gd library?
- I have not found any information in the gnuplot documentation which
  versions of the libraries are necessary and where to get them if
  not installed. Am I blind here, or is there really no information
  about it? I think a file "Requirements" or a section in INSTALL
  should be added.

This is why I have not tested my patches for the enhanced text mode
in other terminals than postscript, my gnuplot does not have any
further terminals that support enhanced text modes.

And a last short question: Have my several patches in the last years
been enough that my name will be added to the list of contributors?

Yours
Harald

--=20
Harald Harders                           Langer Kamp 8
Technische Universit=E4t Braunschweig      D-38106 Braunschweig
Institut f=FCr Werkstoffe                  Germany
E-Mail: h.h...@tu...               Tel: +49 (5 31) 3 91-3062
WWW   : http://www.ifw.tu-bs.de          Fax: +49 (5 31) 3 91-3058

Re: French links

[Ethan M. <merritt@u.washington.edu>]

On Thursday 04 March 2004 11:29 pm, Petr Mikulik wrote:
>
> Gnuplot pages in French - but no one is currently available:
> N/A Traduction de la documentation de gnuplot
> N/A Premiers Pas avec Gnuplot 3.5
> N/A Le groupe Leonhard Euler
>
>
> If you know some (more) working sites, please contribute.


http://www.esiee.fr/~vancauwo/util/gnuplot/gnuplot.pdf
http://www.univ-pau.fr/~artouste/fr/composants/gnuplot/ManuelutilisateurGnuplot.htm
http://www.ofset.org/freeduc/book/book_17.html
http://logiciels-libres-cndp.ac-versailles.fr/gnuplot/


-- 
Ethan A Merritt       merritt@u.washington.edu
Biomolecular Structure Center    (206)543-1421
Mailstop 357742
University of Washington, Seattle, WA 98195

Re: Working...

[Justace C. <pro...@co...>]

I reply to my own message:

	Got it to work by using (-1 "white", -1 "red", 0 "white", 1 "blue").

Justace

On Fri, 2004-03-05 at 13:22, Justace Clutter wrote:
> Ok,
> 
> 	So this might not be a question for this list but here goes.  I have
> used the set palette defined to (1 "red", 2 "white", 3 "blue") and that
> shows the data greatly.  And I set cbrange to [-1:1].  Now all the -2
> values are set to bright red, as they should be.  Is there a syntax
> where I can say I want to interpolate the colors  between like -1 and 0
> as red to white, between 0 and 1 interpolate between white and blue and
> all colors from -1 and down go to black?  I am sure there is a way to do
> this, without makeing a huge color xref file.  The help documentation
> for the set palette is kinda confusing.  Thanks for the help.
> 
> Justace
> 
> On Fri, 2004-03-05 at 10:21, Petr Mikulik wrote:
> > > region with NaN, but how do I put that in gnuplot so that it does not
> > > plot it?  I was putting it in as a -2 and then telling it to only plot
> > > [-1:1] on the z but that was silly since it is a 2D plot.  Maybe the
> > > image style needs to have an internal variable that the user can set to
> > > define NaN's.  That way I could go and set that to -2 and when image
> > > converts the float to a color it goes ohhh this is a NaN, what fill
> > > style should I use here or what predefined color do I have for NaN.
> > 
> > You generate a discrete palette (palette can be red from a file), set the
> > first color to white, and then apply a filter so that the invisible range is
> > mapped to white, and the rest to the remaining palette entries. I do it this
> > way from Octave.
> > 
> > How to do it more easily (in future)? "With image", colors of all pixels
> > have to be defined. So there would have to be "set palette backgroundcolor",
> > and "with image" would have to accept the "set zrange" window. Or the
> > background colour could be that of linetype e.g. -2?
> > 
> > ---
> > Petr Mikulik
> > 
> > 
> > 
> > 
> > 
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: IBM Linux Tutorials
> > Free Linux tutorial presented by Daniel Robbins, President and CEO of
> > GenToo technologies. Learn everything from fundamentals to system
> > administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> > _______________________________________________
> > gnuplot-beta mailing list
> > gnu...@li...
> > https://lists.sourceforge.net/lists/listinfo/gnuplot-beta
> 
> 
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> gnuplot-beta mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-beta

Re: Working...

[Justace C. <pro...@co...>]

Ok,

	So this might not be a question for this list but here goes.  I have
used the set palette defined to (1 "red", 2 "white", 3 "blue") and that
shows the data greatly.  And I set cbrange to [-1:1].  Now all the -2
values are set to bright red, as they should be.  Is there a syntax
where I can say I want to interpolate the colors  between like -1 and 0
as red to white, between 0 and 1 interpolate between white and blue and
all colors from -1 and down go to black?  I am sure there is a way to do
this, without makeing a huge color xref file.  The help documentation
for the set palette is kinda confusing.  Thanks for the help.

Justace

On Fri, 2004-03-05 at 10:21, Petr Mikulik wrote:
> > region with NaN, but how do I put that in gnuplot so that it does not
> > plot it?  I was putting it in as a -2 and then telling it to only plot
> > [-1:1] on the z but that was silly since it is a 2D plot.  Maybe the
> > image style needs to have an internal variable that the user can set to
> > define NaN's.  That way I could go and set that to -2 and when image
> > converts the float to a color it goes ohhh this is a NaN, what fill
> > style should I use here or what predefined color do I have for NaN.
> 
> You generate a discrete palette (palette can be red from a file), set the
> first color to white, and then apply a filter so that the invisible range is
> mapped to white, and the rest to the remaining palette entries. I do it this
> way from Octave.
> 
> How to do it more easily (in future)? "With image", colors of all pixels
> have to be defined. So there would have to be "set palette backgroundcolor",
> and "with image" would have to accept the "set zrange" window. Or the
> background colour could be that of linetype e.g. -2?
> 
> ---
> Petr Mikulik
> 
> 
> 
> 
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> gnuplot-beta mailing list
> gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-beta

Re: Postscript and PM3D file size.

[Daniel J S. <dan...@ie...>]

Roger Fearick wrote:

>On Thu, 4 Mar 2004, Daniel J Sebald wrote:
>  
>
>>Petr Mikulik wrote:
>>
>>    
>>
>>>>So anyway, why doesn't Gnuplot have a mascot?  :)
>>>>   
>>>>
>>>>        
>>>>
>>>That's why I've put on the new web page "Screenshots" section that icon with
>>>a bug (icon used on OS/2 -- what the icon on other OSes?). Isn't that a
>>>mascot? Who drew it?
>>>
>>>      
>>>
>>What?!  Gnuplot's mascot is a bug?  I don't think that is a good idea...  :)
>>
>>It does look like a bug (a black widow spider... with four legs), but I 
>>think it is supposed to be  the face of a gnu amidst a rectangle 
>>representing a plot, i.e., gnu-plot.
>>
>>Dan
>>    
>>
>
>I drew it.
>It is meant to be the face of a gnu superimposed on a plot.
>It was based on a careful study of the small herd of black
>wildebeest in a field on the lower mountain slopes about
>a kilometre from here.
>On the other hand, I don't claim to be an artist.
>Roger.
>

Oh really?  You're from Cape Town.  Fascinating...  Out of curiousity, a 
search turns up the following:  (The first picture looks surprisingly 
like the icon.  What's odd is that there seems to be quite a variation 
in the direction of the horns.)

http://www.seaworld.org/AnimalBytes/wildebeestab.html
http://www.seaworld.org/animal-info/animal-bytes/animalia/eumetazoa/coelomates/deuterostomes/chordates/craniata/mammalia/artiodactyla/eastern-white-bearded-wildebeest.htm
http://www.m-w.com/mw/art/gnu.htm
http://www.gnuworld.com/gnus
http://www.onime.com/Africa/herbivores/antilope/whitebeardedgnu.html

Re: Working...

[Daniel J S. <dan...@ie...>]

Justace Clutter wrote:

>Cool,
>
>	My stuff is almost working and with the image patch much faster.  The
>new deal is this.  Since I am generating a correlation matrix with
>respect to one set of channels, i.e.  the channels correlated with
>themselves, half of the matrix is useless.  Specifically the upper left
>of the diagonal.  So, to cut back on my calculation time I fill that
>region with NaN, but how do I put that in gnuplot so that it does not
>plot it?  I was putting it in as a -2 and then telling it to only plot
>[-1:1] on the z but that was silly since it is a 2D plot.  Maybe the
>image style needs to have an internal variable that the user can set to
>define NaN's.  That way I could go and set that to -2 and when image
>converts the float to a color it goes ohhh this is a NaN, what fill
>style should I use here or what predefined color do I have for NaN. 
>Just some thoughts and questions here.
>

For your correlation matrix, you might want to simply replicate the 
other half since it is probably Hermitian symmetric, of if you are 
working with real signals, outright symmetric.  In any case, your idea 
of mapping to a certain value might work.  It may cause a problem with 
automatic scaling of the color axis.  However, you should be able to 
manually set the color axis so that your "NaN" number gets mapped to 
white.  For example, set the color map some how to [-1:1] and then make 
your "NaN" be a +2  (Or -2, whichever gets mapped to the white value.)

Dan

Re: Working...

[Petr M. <mi...@ph...>]

> region with NaN, but how do I put that in gnuplot so that it does not
> plot it?  I was putting it in as a -2 and then telling it to only plot
> [-1:1] on the z but that was silly since it is a 2D plot.  Maybe the
> image style needs to have an internal variable that the user can set to
> define NaN's.  That way I could go and set that to -2 and when image
> converts the float to a color it goes ohhh this is a NaN, what fill
> style should I use here or what predefined color do I have for NaN.

You generate a discrete palette (palette can be red from a file), set the
first color to white, and then apply a filter so that the invisible range is
mapped to white, and the rest to the remaining palette entries. I do it this
way from Octave.

How to do it more easily (in future)? "With image", colors of all pixels
have to be defined. So there would have to be "set palette backgroundcolor",
and "with image" would have to accept the "set zrange" window. Or the
background colour could be that of linetype e.g. -2?

---
Petr Mikulik

Working...

[Justace C. <pro...@co...>]

Cool,

	My stuff is almost working and with the image patch much faster.  The
new deal is this.  Since I am generating a correlation matrix with
respect to one set of channels, i.e.  the channels correlated with
themselves, half of the matrix is useless.  Specifically the upper left
of the diagonal.  So, to cut back on my calculation time I fill that
region with NaN, but how do I put that in gnuplot so that it does not
plot it?  I was putting it in as a -2 and then telling it to only plot
[-1:1] on the z but that was silly since it is a 2D plot.  Maybe the
image style needs to have an internal variable that the user can set to
define NaN's.  That way I could go and set that to -2 and when image
converts the float to a color it goes ohhh this is a NaN, what fill
style should I use here or what predefined color do I have for NaN. 
Just some thoughts and questions here.

Justace

Re: Postscript and PM3D file size.

[Hans-Bernhard B. <br...@ph...>]

On Thu, 4 Mar 2004, Petr Mikulik wrote:

> That's why I've put on the new web page "Screenshots" section that icon with
> a bug (icon used on OS/2 -- what the icon on other OSes?). Isn't that a
> mascot? Who drew it?

Hmm... The windows version doesn't use that icon.  It has it's own pair of
icons, one for the main (text) window, another for the graph. See
gnuplot/src/win/*.ico.  I guess it might be a good idea to use the same
icon on all platforms that use icons, i.e. Windows, OS/2 and (I guess)
MacOS.  

X11 only uses icons in the contexts of KDE or Gnome, AFAIK, and I'm not
sure it's possible or easy to export an icon without making gnuplot_x11
dependant on either Gtk or Qt.  Any experts know better?

OTOH, an icon isn't quite the same as a mascot.  That'd have to be more
along the lines of the BSD daemon, Tux the Linux penguin, or Mozilla's
lizard.

-- 
Hans-Bernhard Broeker (br...@ph...)
Even if all the snow were burnt, ashes would remain.

tutorial/tutorial.tex

[Petr M. <mi...@ph...>]

I've slightly modified the $Subj. The changes are not yet in cvs, but rather
at
	http://gnuplot.sourceforge.net/help.html
saying

LaTeX and the gnuplot plotting program (in postscript; and in pdf) by David
Klotz. This tutorial, bundled with gnuplot sources, was written in 1991 for
gnuplot version 3.0. It was slightly updated by the gnuplot team for gnuplot
4.0 in March 2004.

Can you please comment on the changes -- I'd like to submit it so that this
tutorial does not look "no more maintained" -- but maybe someone would like
to add some more text in it.


Also, there is a "gpcard.tex" there, a on the web link to "gnuplot 3.4 Quick
Reference by Burkhard Kirste" -- would someone like to proof-read it and
update?

---
Petr Mikulik

Re: Postscript and PM3D file size.

[Petr M. <mi...@ph...>]

> I drew it.
> It is meant to be the face of a gnu superimposed on a plot.
> It was based on a careful study of the small herd of black
> wildebeest in a field on the lower mountain slopes about
> a kilometre from here.

Well, your explanation is nice and I'll put it along to the icon on the web.
Don't you have a photo that could accompany this text?

However -- shouldn't wildebeest have the whole head black?

---
Petr Mikulik

Re: French links

[Petr M. <mi...@ph...>]

> The three links to the French gnuplot pages are
> broken.

At which web page? At the new one, it is said there:

http://gnuplot.sourceforge.net/help.html

=>

Gnuplot pages in French - but no one is currently available:
N/A Traduction de la documentation de gnuplot
N/A Premiers Pas avec Gnuplot 3.5
N/A Le groupe Leonhard Euler


If you know some (more) working sites, please contribute.

---
PM

French links

[John B. <bb...@ya...>]

The three links to the French gnuplot pages are
broken.

     --jab

=====
John Bollinger, CFA, CMT
www.BollingerBands.com

If you advance far enough, you arrive at the beginning.

__________________________________
Do you Yahoo!?
Yahoo! Search - Find what you’re looking for faster
http://search.yahoo.com

Re: Postscript and PM3D file size.

[Daniel J S. <dan...@ie...>]

Petr Mikulik wrote:

>>So anyway, why doesn't Gnuplot have a mascot?  :)
>>    
>>
>
>That's why I've put on the new web page "Screenshots" section that icon with
>a bug (icon used on OS/2 -- what the icon on other OSes?). Isn't that a
>mascot? Who drew it?
>

What?!  Gnuplot's mascot is a bug?  I don't think that is a good idea...  :)

It does look like a bug (a black widow spider... with four legs), but I 
think it is supposed to be  the face of a gnu amidst a rectangle 
representing a plot, i.e., gnu-plot.

Dan

Re: Postscript and PM3D file size.

[Petr M. <mi...@ph...>]

> So anyway, why doesn't Gnuplot have a mascot?  :)

That's why I've put on the new web page "Screenshots" section that icon with
a bug (icon used on OS/2 -- what the icon on other OSes?). Isn't that a
mascot? Who drew it?

---
PM

Re: Postscript and PM3D file size.

[Hans-Bernhard B. <br...@ph...>]

On Thu, 4 Mar 2004, Daniel J Sebald wrote:

> Well, I guess water should actually "slosh", not "jostle".  So anyway, 
> why doesn't Gnuplot have a mascot?  :)

Simple: because no-one ever thought that we needed one badly enough to go
and make one. 

-- 
Hans-Bernhard Broeker (br...@ph...)
Even if all the snow were burnt, ashes would remain.