Nabble - Octave - General

plot & print

2009-11-14T00:52:50Z

This is most likely a very stupid beginner's question, but still :

I use octave to generate geometrical objects, and need accurate control of their size in pixels.
The way I do that is to plot a figure and then print it.
For instance, to generate, say, a 500 pixel square :
plot ([-1,-1,1,1,-1], [-1,1,1,-1,-1]) # a square
print ("-dpng", "-S500,500", "sq.png") # generate file

However, this method generates margins around the objects, and I can't find how to control the size of those margins (or suppress them).
Alternatively, could one tell me how these margins are sized ?

Thanks in advance,
Alain

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: problem about plotting

2009-11-13T15:01:33Z

On Nov 13, 2009, at 12:49 PM, Jerry Wu wrote:

>
> On Nov 13, 2009, at 6:07 AM, Ben Abbott wrote:
>
>> On Friday, November 13, 2009, at 04:33AM, "Jerry Wu" <jerrywu26@...> wrote:
>>> Hi I have problem plotting the graph,
>>> It shows me the message:
>>>
>>> octave-3.2.3:4>
>>> multiplot> set palette file "-" binary record=64 using 1:2:3:4;
>>> ^
>>> line 0: Gray scale not sorted in gradient.
>>>
>>>
>>> I use:
>>> Mac OS 10.5.8
>>>
>>> GNU Octave, version 3.2.3
>>> Octave was configured for "i386-apple-darwin8.11.1".
>>>
>>> G N U P L O T
>>> Version 4.2 patchlevel 6
>>> last modified Sep 2009
>>> System: Darwin 9.8.0
>>>
>>> X11 - 2.3.2
>>>
>>> So how can I fix the problem?
>>>
>>> Thanks a lot!!!
>>
>> Can you provide us with a simple example so that we may duplicate the problem?
>>
>> Ben
>
>
> I use simple equations like
>
> x=0:90;
> plot x = sin(x)
>
> or from the sample from octave "help plot"
>
> t = 0:0.1:6.3;
> plot (t, cos(t), "-;cos(t);", t, sin(t), "+3;sin(t);");
>
> Thanks.

The first isn't proper octave syntax. Did you mean ...

x = 0:90;
plot (x, sin(x))

That works fine with no error.

Your 2nd example also works.

When you try these two examples do they produce the message below?

>>> multiplot> set palette file "-" binary record=64 using 1:2:3:4;
>>> ^
>>> line 0: Gray scale not sorted in gradient.
>>

Ben

p.s. please bottom post so that other may follow along, and take care that you reply-all. Thanks!
_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: [OctDev] Win 64 bits version

2009-11-13T14:21:59Z

Hello

At present, there is no 64bit version of octave on windows. I hear that Benjamin Lindner, who is
maintainer of octave for windows on MinGW32, personally is tring to build octave by 64 bit MinGW gcc.

At present, the solution I think is

1) wait until 64 bit version octave coming up

2) try to build octave by yourself with the help of the octave ML

3) use Linux OS, in which 64 bit octave work. (I don't know which distribution supports 64 bit octave
)

4) use Matlab-64.

Regards

Tatsuro

--- Sven-Erik Tiberg wrote:

> Hi
>
> Would like to try octave in a win 2008 R2 server with 48G/500G+ memory and 2Xquadcore
> processors.
> Any hint on how to install octave with optimum memory and cpu core support.
>
> BTW, run the servers as Remote desktop servers, and uses one for imageprocessing and the other
> for more general calculations using Matlab 64-version and Comsol Multiphysics and a bit more.
>
> /Sven-Erik
>
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
> trial. Simplify your report design, integration and deployment - and focus on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
> Octave-dev mailing list
> Octave-dev@...
> https://lists.sourceforge.net/lists/listinfo/octave-dev
>

--------------------------------------
GyaO! - Anime, Dramas, Movies, and Music videos [FREE]
http://pr.mail.yahoo.co.jp/gyao/
_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Win 64 bits version

2009-11-13T13:25:23Z

Hi

Would like to try octave in a win 2008 R2 server with 48G/500G+ memory and 2Xquadcore processors.
Any hint on how to install octave with optimum memory and cpu core support.

BTW, run the servers as Remote desktop servers, and uses one for imageprocessing and the other for more general calculations using Matlab 64-version and Comsol Multiphysics and a bit more.

/Sven-Erik

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Octave error messages localized in English rather than in French??

2009-11-13T10:59:55Z

My mistake again!
I had an error in the "she bang".
Julien.

2009/11/13 John W. Eaton <jwe@...>

On 13-Nov-2009, Jordi Gutiérrez Hermoso wrote:

| I wasn't aware anyone had translated Octave to French, though. What
| exactly are you seeing in French?

I'm pretty sure Octave itself is not producing error messages in
anything but English. Changing your locale won't do anything.

jwe

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Octave error messages localized in English rather than in French??

2009-11-13T10:54:56Z

On 13-Nov-2009, Jordi Gutiérrez Hermoso wrote:

| I wasn't aware anyone had translated Octave to French, though. What
| exactly are you seeing in French?

I'm pretty sure Octave itself is not producing error messages in
anything but English. Changing your locale won't do anything.

jwe

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Octave error messages localized in English rather than in French??

2009-11-13T10:44:59Z

2009/11/13 Julien Martin <balteo@...>:
> How do I switch to English please?

Switch your locale?

I wasn't aware anyone had translated Octave to French, though. What
exactly are you seeing in French?
_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Strange error when trying to load a file...

2009-11-13T10:19:17Z

John,

function X=GenereVariable(p1, p2, Delta1, Delta2)
%X prend la valeur Delta1 avec probabilité p1
%X prend la valeur Delta2 avec probabilité p2
%X prend la valeur 0 avec probabilité 1-p1-p2
U = rand;
X=Delta1 * (U<=p1) - Delta2 * (p1<U) * (p1+p2 >=U);
end

printf("%d",GenereVariable(0.5, 0.5, 0, 1));

I then added this in order to run it from a terminal only invoking the name of the file:
./variable-uniforme.m

Julien.

2009/11/13 John W. Eaton <jwe@...>

On 13-Nov-2009, Julien Martin wrote:

| I googled for this issue and some people have had it too with QtOctave.
| QtOctave seems to be a nice program though.
| Julien.
|
| 2009/11/13 Julien Martin <balteo@...>
|
| > This seems to be a QtOctave problem only though.
| > J.
| >
| > 2009/11/13 Julien Martin <balteo@...>
| >
| >> Hello,
| >>
| >>
| >> When I run this from QtOctave:
| >> *
| >> load("-text","/home/julien/Documents/données/finance/octave/variable-uniforme.m");

Exactly what is in the file variable-uniforme.m?

jwe

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Octave error messages localized in English rather than in French??

2009-11-13T10:17:41Z

Hello,

Being completely new to Octave I have a few questions about it. Sorry for being rather verbose today.

#! /usr/bin/octave -qf

#my program goes here...

To my surprise, Octave displays error messages in French, (French being my locale) when run from the command line (see example of a program above).

How do I switch to English please?

Julien.

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Using octave runtime in a commercial product

2009-11-13T10:06:10Z

Judd Storrs wrote:

> On Thu, Nov 12, 2009 at 7:27 PM, David Bateman <dbateman@...> wrote:
>
>> just use a popen2 in your application A to start an octave process, feed
>> it the data you want and recover it however you want and I believe you
>> could do this. Perhaps John might clarify his position though.
>>
>
> Well, unfortunately this won't really protect *.m code if someone
> wants it. No matter how cleverly you encrypt the files on
> disk/wherever they will always flow as plain text through the pipe.
> Anyone could substitute a rogue interpreter to siphon off the code as
> it is filtered. Any sort of hand-shaking would have to be either
> covered by the GPL (i.e. available as source code) or MEX compatible
> (i.e. reusable by a rogue octave). It seems to me the best chance of
> protecting code with octave is MEX binaries with some sort of
> anti-disassembler tricks. Honestly, I don't think there's much you can
> do. In the end it's all just speed bumps.
>
>
> --judd
>
>

copyright law protects it whether it is readable or not

D

--
David Bateman dbateman@...
35 rue Gambetta +33 1 46 04 02 18 (Home)
92100 Boulogne-Billancourt FRANCE +33 6 72 01 06 33 (Mob)

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Strange error when trying to load a file...

2009-11-13T10:03:38Z

Re: Strange error when trying to load a file...

2009-11-13T10:01:59Z

Jordi,
I googled for this issue and some people have had it too with QtOctave.
QtOctave seems to be a nice program though.
Julien.

2009/11/13 Julien Martin <balteo@...>

This seems to be a QtOctave problem only though.
J.

2009/11/13 Julien Martin <balteo@...>
Hello,

When I run this from QtOctave:
load("-text","/home/julien/Documents/données/finance/octave/variable-uniforme.m");

I get this:
error: load: empty name keyword or no data found in file /home/julien/....

Can anyone help please?

Julien.

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Strange error when trying to load a file...

2009-11-13T09:59:55Z

This seems to be a QtOctave problem only though.
J.

2009/11/13 Julien Martin <balteo@...>

Hello,

When I run this from QtOctave:
load("-text","/home/julien/Documents/données/finance/octave/variable-uniforme.m");

I get this:
error: load: empty name keyword or no data found in file /home/julien/....

Can anyone help please?

Julien.

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Strange error when trying to load a file...

2009-11-13T09:56:56Z

2009/11/13 Julien Martin <balteo@...>:
> Hello,
>
> When I run this from QtOctave:

I hope it's not a problem with QtOctave

> load("-text","/home/julien/Documents/données/finance/octave/variable-uniforme.m");

Two ideas: (1) character encoding issues (2) load is for loading data,
not code. You don't need to do anything special to load code, just be
in its directory.

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Strange error when trying to load a file...

2009-11-13T09:20:36Z

Hello,

When I run this from QtOctave:
load("-text","/home/julien/Documents/données/finance/octave/variable-uniforme.m");

I get this:
error: load: empty name keyword or no data found in file /home/julien/....

Can anyone help please?

Julien.

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Octave equivalent of Matlab's rand??

2009-11-13T09:01:04Z

Functions calls with
no arguments may be written without ()

Oh, I see... Interesting!

Yes I did try it but it returned an error that had nothing to do with the rand function but rather to my misunderstanding of QtOctave.

Thanks a lot anyway!

J.

P.S. Do you think I can post question here about working with QtOctave?

2009/11/13 John W. Eaton <jwe@...>

On 13-Nov-2009, Julien Martin wrote:

| 1. I would like to know what is the Octave equivalent of Matlab's "*rand*"
| keyword (look at line 2 and note that there are no parentheses).

It's not a keyword in either Matlab or Octave. Functions calls with
no arguments may be written without (). Octave has a rand function,
so I would expect your code to work in both Octave and Matlab. Did
you try it?

jwe

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Octave equivalent of Matlab's rand??

2009-11-13T08:53:43Z

On 13-Nov-2009, Julien Martin wrote:

| 1. I would like to know what is the Octave equivalent of Matlab's "*rand*"
| keyword (look at line 2 and note that there are no parentheses).

It's not a keyword in either Matlab or Octave. Functions calls with
no arguments may be written without (). Octave has a rand function,
so I would expect your code to work in both Octave and Matlab. Did
you try it?

jwe
_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Octave equivalent of Matlab's rand??

2009-11-13T08:50:22Z

fre, 13 11 2009 kl. 17:46 +0100, skrev Julien Martin:
> Hello,
>
> 1. I would like to know what is the Octave equivalent of Matlab's
> "rand" keyword (look at line 2 and note that there are no
> parentheses).

It's the same.

> 2. Is there a website that references all Octave/Matlab
> incompatibilities/differences? If so can anyone please direct me to
> it?

Look at the FAQ at www.octave.org:

http://www.gnu.org/software/octave/FAQ.html

Søren

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Octave equivalent of Matlab's rand??

2009-11-13T08:46:09Z

Hello,

1. I would like to know what is the Octave equivalent of Matlab's "rand" keyword (look at line 2 and note that there are no parentheses).

Here is my program:
function X=GenereVariable(p1, p2, Delta1, Delta2)
U = rand;
X=Delta1 * (U<=p1) - Delta2 * (p1<U) * (p1+p2 >=U);
end

2. Is there a website that references all Octave/Matlab incompatibilities/differences? If so can anyone please direct me to it?

Thanks in advance,
Julien.

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: octave and delay ode's

2009-11-13T07:46:29Z

Thanks a lot Carlo.

The is the best way.
Using discrete system I have exactly the results like Stella.
I'm happy

best regards
f.b.

2009/11/7 Carlo de Falco <carlo.defalco@...>

On 7 Nov 2009, at 19:13, franco basaglia wrote:

Thank you all for your work.

I have a last question.
I'd convert my ode system to a discrete-time system
with annual time step. In thsi way I can simplify my delay question.

What is the octave solver to use? How can I plan the system in Octave?

The discrete system is something like that:

y1(t) = y1(t-1) -y1(t)
y2(t) = y2(t-1) -y2(t) + y1(t-5)
y3(t) = t3(t-1) -y3(t) + y2(t-10)*y1(t-10)

what you have written above is the Backward-Euler
method applied to your differential system.
to implement it in Octave, you need just to:

1) initialize your state variables for t<=10
2) add a cycle over t=11:T
3) solve the non-linear system at each step with e.g. "fsolve"

function res = fun (y,ym1,ym5,ym10)
res(1) = -y(1) + ym1(1) -y(1);
res(2) = -y(2) + ym1(2) -y(2) + ym5(1);
res(3) = -y(3) + ym1(3) -y(3) + ym10(2)*ym10(1);
endfunction

y = ones(3,10);
for t = 11:100
y(:,t) = fsolve(@(x) fun(x,y(:,t-1),y(:,t-5),y(:,t-10)), y(:,t-1));
endfor

and you're all set.
anyway this is more or less equivalent to

function f = fun (t, y, yd)
f(1) =-y(1);
f(2) =-y(2) + yd(1,1);
f(3) =-y(3) + yd(2,2)*yd(1,2);
endfunction
T = [0,20];
res = ode45d (@fun, T, [1;1;1], [5, 10], ones (3,2));

but much less accurate, as you can see by running both implementations above and then typing:

plot(-10:89, y)
hold on
plot (res.x, res.y, 'x-')

it seems to me that, while it more or less captures the asymtotic behaviuor,
your simplified solver damps away the initial oscillations completely.

Thank you
best regards
f.b.

HTH,
c.

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: problem about plotting

2009-11-13T06:07:15Z

On Friday, November 13, 2009, at 04:33AM, "Jerry Wu" <jerrywu26@...> wrote:

>Hi I have problem plotting the graph,
>It shows me the message:
>
>octave-3.2.3:4>
>multiplot> set palette file "-" binary record=64 using 1:2:3:4;
> ^
> line 0: Gray scale not sorted in gradient.
>
>
>I use:
>Mac OS 10.5.8
>
>GNU Octave, version 3.2.3
>Octave was configured for "i386-apple-darwin8.11.1".
>
>G N U P L O T
> Version 4.2 patchlevel 6
> last modified Sep 2009
> System: Darwin 9.8.0
>
>X11 - 2.3.2
>
>So how can I fix the problem?
>
>Thanks a lot!!!

Can you provide us with a simple example so that we may duplicate the problem?

Ben
_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Using octave runtime in a commercial product

2009-11-13T05:44:59Z

2009/11/13 Eduardo Fuentetaja <efuentetaja@...>:
> Well, I trust our customers (mostly law enforcement organizations), but I
> don’t trust our competitors at all.

Why would your customers give your code to your competitors?

And if they did, how would your competitors using that code hurt you,
since it would only mean that they would have to release source as
well?

The GPL levels the playing field. In free code which is commercially
viable (e.g. Linux), all companies contribute to the code on the same
terms. IBM gives patches to Linux because it benefits IBM; Intel
provides drivers for Linux because it's good for Intel to do so. This
tangentially also benefits others companies, but that's not why IBM
and Intel are doing it.

I think Octave is equally commercially viable, but having such a huge
competitor as Matlab has made it difficult so far to outshine it.

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

RE: Using octave runtime in a commercial product

2009-11-13T01:48:01Z

Well, I trust our customers (mostly law enforcement organizations), but I don’t trust our competitors at all.

Regards,

De: Jaroslav Hajek [mailto:highegg@...]
Enviado el: viernes, 13 de noviembre de 2009 8:57
Para: Eduardo Fuentetaja
CC: Jordi Gutiérrez Hermoso; help@...
Asunto: Re: Using octave runtime in a commercial product

2009/11/13 Eduardo Fuentetaja <efuentetaja@...>

Some free software projects have the dual licensing option to address such needs (and funding opportunities). However, for Octave it doesn't work because there is no company collecting copyright from contributors; you'd need to arrange the licensing with all past contributors, and there are dozens of them. There are numerous ways how you can encrypt your m-files to make unlicensed use difficult; however, as Judd noted, the decryption could always be intercepted.

Maybe you're too pessimistic? Just supply the m-files with clearly stated copyright - look what MathWorks does. Why not just trust your customers?

Thanks a lot for your comments and keep up the good work.

Ed

--
RNDr. Jaroslav Hajek
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

smime.p7s (5K) Download Attachment

problem about plotting

2009-11-13T01:33:55Z

Hi I have problem plotting the graph,
It shows me the message:

octave-3.2.3:4>
multiplot> set palette file "-" binary record=64 using 1:2:3:4;
^
line 0: Gray scale not sorted in gradient.

I use:
Mac OS 10.5.8

GNU Octave, version 3.2.3
Octave was configured for "i386-apple-darwin8.11.1".

G N U P L O T
Version 4.2 patchlevel 6
last modified Sep 2009
System: Darwin 9.8.0

X11 - 2.3.2

So how can I fix the problem?

Thanks a lot!!!
_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Using octave runtime in a commercial product

2009-11-12T23:57:18Z

2009/11/13 Eduardo Fuentetaja <efuentetaja@...>

Thank you all guys for the info. I got the picture.

Just for the record: I'm not an enemy of freedom. In fact I have contributed in the past a great deal of my time to some open source projects and I feel proud of it. This question was for my day job (the one that helps me pay my bills), and the last think I want for many reasons (including legal) is to take dishonest advantage of the good work you guys put in Octave.

One piece of thought for your consideration: Octave's got great value and there are companies out there (like mine) that would be willing to compensate economically for the benefits of legally using Octave. Then you use that money to helping cure malaria or -another idea- to organize a Octave user day in Vegas, all expenses paid.

Thanks a lot for your comments and keep up the good work.

Ed

--
RNDr. Jaroslav Hajek
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

RE: Using octave runtime in a commercial product

2009-11-12T23:50:27Z

On 13-Nov-2009, Søren Hauberg wrote:

| Are you suggesting that companies should be able to get Octave under a
| different license for some amount of cash? While such money would be
| helpful, I don't think the approach would be practical as we would have
| to get this accepted by all the people that have contributed to Octave
| during the last decade. This would be a huge task...

Somewhat longer than that now, almost 18 years. And some of the
contributors are dead, so contacting them might prove to be
difficult.

jwe

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

RE: Using octave runtime in a commercial product

2009-11-12T23:40:24Z

fre, 13 11 2009 kl. 08:28 +0100, skrev Eduardo Fuentetaja:
> One piece of thought for your consideration: Octave's got great value
> and there are companies out there (like mine) that would be willing to
> compensate economically for the benefits of legally using Octave. Then
> you use that money to helping cure malaria or -another idea- to
> organize a Octave user day in Vegas, all expenses paid.

Are you suggesting that companies should be able to get Octave under a
different license for some amount of cash? While such money would be
helpful, I don't think the approach would be practical as we would have
to get this accepted by all the people that have contributed to Octave
during the last decade. This would be a huge task...

Søren

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

RE: Using octave runtime in a commercial product

2009-11-12T23:28:02Z

Thank you all guys for the info. I got the picture.

Just for the record: I'm not an enemy of freedom. In fact I have contributed in the past a great deal of my time to some open source projects and I feel proud of it. This question was for my day job (the one that helps me pay my bills), and the last think I want for many reasons (including legal) is to take dishonest advantage of the good work you guys put in Octave.

One piece of thought for your consideration: Octave's got great value and there are companies out there (like mine) that would be willing to compensate economically for the benefits of legally using Octave. Then you use that money to helping cure malaria or -another idea- to organize a Octave user day in Vegas, all expenses paid.

Thanks a lot for your comments and keep up the good work.

Ed

-----Mensaje original-----
De: Jordi Gutiérrez Hermoso [mailto:jordigh@...]
Enviado el: viernes, 13 de noviembre de 2009 6:12
Para: Eduardo Fuentetaja
CC: David Bateman; help@...
Asunto: Re: Using octave runtime in a commercial product

2009/11/12 Jordi Gutiérrez Hermoso <jordigh@...>:
> 2009/11/12 Eduardo Fuentetaja <efuentetaja@...>:
>> Yes, we'd like to protect the m-files.
>
> I think you mean "restrict",

I'm sorry. This came out a bit more harsh than I wanted it to sound,
particularly because we speak different languages on the
free/proprietary - gratis/commercial plane.

Octave has a long and rich history of code sharing and community. If
you want to take code and use it without giving back, some
longstanding members of the Octave community might react unfavourably.
I urge you to reconsider the use case you plan for Octave and consider
releasing free commercial code.

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

smime.p7s (5K) Download Attachment

Problems with dbstop command

2009-11-12T22:45:23Z

Hi,

I am using Octave 3.2.2 on Ubuntu 9.10 and am having trouble debugging a script using Octave's command line debugger. I set a breakpoint in my script using the dbstop command and when I run the script it stops at the correct place. No debug> prompt appears though. It just sits there blankly and my CPU gets 100% used by Octave. Here is what I see:

------------------------------------------------------------------------------------------------

RussBoxerOctave: line 427, column 2

keyboard: stopped in /home/fretenburg/Documents/PDE/Ensco/Boxer/Software/Octave/RussBoxerOctave.m at line 427

427: x=[10:5:(NumberOfFiles*5+5)];

-----------------------------------------------------------------------------------------------

It just sits there like that until I hit Cntl-C to exit.

Any ideas what I am doing wrong?

Best regards,

Russ

--
Russ Fretenburg
fretenburg@...
http://ca.linkedin.com/in/russfretenburg

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Using octave runtime in a commercial product

2009-11-12T21:12:02Z

2009/11/12 Jordi Gutiérrez Hermoso <jordigh@...>:
> 2009/11/12 Eduardo Fuentetaja <efuentetaja@...>:
>> Yes, we'd like to protect the m-files.
>
> I think you mean "restrict",

I'm sorry. This came out a bit more harsh than I wanted it to sound,
particularly because we speak different languages on the
free/proprietary - gratis/commercial plane.

Octave has a long and rich history of code sharing and community. If
you want to take code and use it without giving back, some
longstanding members of the Octave community might react unfavourably.
I urge you to reconsider the use case you plan for Octave and consider
releasing free commercial code.

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Using octave runtime in a commercial product

2009-11-12T21:02:26Z

2009/11/12 Eduardo Fuentetaja <efuentetaja@...>:
> Yes, we'd like to protect the m-files.

I think you mean "restrict", files aren't damaged or hurt when they're
copied, distributed, or studied. If you modify them for the worse,
that could arguably be something that needs to be protected against,
but I don't think that's what you have in mind.

Also, commercial and free aren't contradictory terms, there is much
free software that is being sold for a profit, and profitably so.

The antonym of commercial is gratis; the antonym of free is
proprietary. These pair of antonyms lie on orthogonal axes.

> The idea would be to have an application A that calls a library L.

Since it's in library form, I assume you mean dynamic linking. The
FSF's standing opinion is that dynamic linking constitutes a
derivative work under copyright law, hence covered under the GPL,
although a few people disagree with this, and nobody has successfully
challenged the FSF's opinion in court. I don't recommend you attempt
to challenge this opinion.

If you don't want freedom, Octave isn't for you.
_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Problem in installing octave-3.2.3 in Suse Linux 2.6.16.60-0.42.7

2009-11-12T17:43:49Z

Dear member,

I am a newby in Octave. I tried to install Octave-3.2.3 in Linux machine with Suse 2.6.16.60-0.42.7. The GCC version is 4.4.1

I am seeing the following errors after I Run "make."

../libcruft/libcruft.so: undefined reference to `csrot_'
../libcruft/libcruft.so: undefined reference to `zdrot_'
collect2: ld returned 1 exit status
make[2]: *** [octave] Error 1
make[2]: Leaving directory `/mnt/gpfs/usrpeople/srini/octave-3.2.3/src'
make[1]: *** [src] Error 2
make[1]: Leaving directory `/mnt/gpfs/usrpeople/srini/octave-3.2.3'
make: *** [all] Error 2

Not sure what this means. Can anybody please help me out here?

Regards,
Srini

_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: eps size in print

2009-11-12T17:17:15Z

On Nov 12, 2009, at 7:52 AM, rpf@... wrote:

> Hello all,
>
> I print my plots to eps files to include them in PDFLatex documents
> after using epstopdf. The print command help states that the size
> option, e.g. -S700,700 is only available when using PNG and SVG. When
> I resize the eps afterwards with epsffit or using
> inscludegraphics[height=5cm]{...}, the text is distorted. How can I
> preset the size of the image I get, or is there a way to resize the
> eps without loosing the textsize?
>
> thanks!

Using the 3.0.x series of Octave, I do not know how to change the size of the eps output.

For the 3.2.x series, the size of the output is specified by the figure property "paperposition", which is a 4 element vector. For eps output, running 3.2.2/3, the first two elements of the vector do not effect the eps output. The 2nd two define the width and height in inches.

To obtain a 6x4 inch eps image

set (gcf, "paperpositionsize", [0.5 0.5 6 4])
print -depsc foo.eps

Ben
_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Plotting issues: arrows and label font size

2009-11-12T17:16:57Z

On Nov 12, 2009, at 7:33 AM, rpf@... wrote:

>> Second: axis label sizes. I think I'm doing the right thing by setting
>>
>> xlabel('X','fontsize',16)
>>
>> ... but although getting the properties of the label with get() reveals
>> the fontsize value has been set correctly, when I use the print command
>> to output an EPS file the font size is not changed. Is it me or Octave
>> who is doing things wrong? :-P
>
>
> I use
>
> xlabel("X","fontsize", 16)
> print -deps -F:10 foo.eps
>
> and that works well. It prints the xlabel with font size 16 and the
> values on the axes in font size 10. (at least for octave 3.0, gnuplot
> 4.5 using wxt terminal)

The above works for 3.0.x, but will not work for the more recent 3.2.x builds.

Octave's development has been progressing toward compatibility with Matlab. However, it is not there yet. The commands below will produce a plot with 10pt fonts for the axis tick labels and for the ylabel. The xlabel will be size 16.

x = 0:10;
plot (x, x)
set (gca, "fontsize", 20)
xlabel ("fontsize=16", "fontsize", 32)
ylabel ("fontsize=10", "fontsize", 20)
print -depsc foo.eps

The fontsizes are set to twice the targeted values as the gnuplot eps terminal scales the fontsize down by a factor of two (this is intentional, and not a bug).

Ben
_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave

Re: Using octave runtime in a commercial product

2009-11-12T16:59:35Z

On Thu, Nov 12, 2009 at 7:27 PM, David Bateman <dbateman@...> wrote:
> just use a popen2 in your application A to start an octave process, feed
> it the data you want and recover it however you want and I believe you
> could do this. Perhaps John might clarify his position though.

Well, unfortunately this won't really protect *.m code if someone
wants it. No matter how cleverly you encrypt the files on
disk/wherever they will always flow as plain text through the pipe.
Anyone could substitute a rogue interpreter to siphon off the code as
it is filtered. Any sort of hand-shaking would have to be either
covered by the GPL (i.e. available as source code) or MEX compatible
(i.e. reusable by a rogue octave). It seems to me the best chance of
protecting code with octave is MEX binaries with some sort of
anti-disassembler tricks. Honestly, I don't think there's much you can
do. In the end it's all just speed bumps.

--judd
_______________________________________________
Help-octave mailing list
Help-octave@...
https://www-old.cae.wisc.edu/mailman/listinfo/help-octave