octave-dev — GNU Octave developers' list

Re: [OctDev] circle symbol in Octave

[Surandokht N. <sur...@gm...>]

Thanks for the information. I'll try it.

Cheers,
Sue

On 12-11-16 9:00 AM, "Daniel J Sebald" <dan...@ie...> wrote:

>On 11/16/2012 01:50 AM, Surandokht Nikzad wrote:
>> The platform is Mac OS X version 10.6.8
>> The version of octave is 3.4.0
>> The version of gnuplot is version 4.2.5
>
>Well, those versions go back quite a ways.  You might have to upgrade to
>something more recent, like octave 3.5.5 or greater.  (The latest stable
>Octave is 3.6.2.)  Along with that, an upgrade in gnuplot would be good
>too.  (The latest stable version is 4.6.)
>
>That, or randomly try other symbols and see if you can find the circle.
>
>Dan
>
>
>> On 12-11-16 8:45 AM, "Daniel J Sebald"<dan...@ie...>  wrote:
>>
>>> On 11/16/2012 01:38 AM, Surandokht Nikzad wrote:
>>>> Hello,
>>>>
>>>> I have a question regarding symbols in plotting. I wonder about the
>>>>very
>>>> basic one, which is circle 'o'.
>>>> When I use this for plotting [plot(x,y,'o')], instead of having
>>>>circle,
>>>> I get triangle shape with a dot in the middle!
>>>>
>>>> What should I do to solve this tiny/strange problem?
>>>>
>>>> Thanks in advance,
>>>> Sue
>>>
>>> What platform are you running on?  Linux?  Windows?  OSX?
>>>
>>> What version of octave are you using (at the octave prompt type
>>>version)?
>>>
>>> What version of gnuplot are you using (type "gnuplot --version" at a
>>> command line)?
>>>
>>> Dan
>>
>>
>>
>
>-- 
>
>Dan Sebald
>email: daniel(DOT)sebald(AT)ieee(DOT)org
>URL: http://www(DOT)dansebald(DOT)com

Re: [OctDev] circle symbol in Octave

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

On 11/16/2012 01:50 AM, Surandokht Nikzad wrote:
> The platform is Mac OS X version 10.6.8
> The version of octave is 3.4.0
> The version of gnuplot is version 4.2.5

Well, those versions go back quite a ways.  You might have to upgrade to 
something more recent, like octave 3.5.5 or greater.  (The latest stable 
Octave is 3.6.2.)  Along with that, an upgrade in gnuplot would be good 
too.  (The latest stable version is 4.6.)

That, or randomly try other symbols and see if you can find the circle.

Dan


> On 12-11-16 8:45 AM, "Daniel J Sebald"<dan...@ie...>  wrote:
>
>> On 11/16/2012 01:38 AM, Surandokht Nikzad wrote:
>>> Hello,
>>>
>>> I have a question regarding symbols in plotting. I wonder about the very
>>> basic one, which is circle 'o'.
>>> When I use this for plotting [plot(x,y,'o')], instead of having circle,
>>> I get triangle shape with a dot in the middle!
>>>
>>> What should I do to solve this tiny/strange problem?
>>>
>>> Thanks in advance,
>>> Sue
>>
>> What platform are you running on?  Linux?  Windows?  OSX?
>>
>> What version of octave are you using (at the octave prompt type version)?
>>
>> What version of gnuplot are you using (type "gnuplot --version" at a
>> command line)?
>>
>> Dan
>
>
>

-- 

Dan Sebald
email: daniel(DOT)sebald(AT)ieee(DOT)org
URL: http://www(DOT)dansebald(DOT)com

Re: [OctDev] circle symbol in Octave

[Surandokht N. <sur...@gm...>]

The platform is Mac OS X version 10.6.8
The version of octave is 3.4.0
The version of gnuplot is version 4.2.5


On 12-11-16 8:45 AM, "Daniel J Sebald" <dan...@ie...> wrote:

>On 11/16/2012 01:38 AM, Surandokht Nikzad wrote:
>> Hello,
>>
>> I have a question regarding symbols in plotting. I wonder about the very
>> basic one, which is circle 'o'.
>> When I use this for plotting [plot(x,y,'o')], instead of having circle,
>> I get triangle shape with a dot in the middle!
>>
>> What should I do to solve this tiny/strange problem?
>>
>> Thanks in advance,
>> Sue
>
>What platform are you running on?  Linux?  Windows?  OSX?
>
>What version of octave are you using (at the octave prompt type version)?
>
>What version of gnuplot are you using (type "gnuplot --version" at a
>command line)?
>
>Dan

Re: [OctDev] circle symbol in Octave

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

On 11/16/2012 01:38 AM, Surandokht Nikzad wrote:
> Hello,
>
> I have a question regarding symbols in plotting. I wonder about the very
> basic one, which is circle 'o'.
> When I use this for plotting [plot(x,y,'o')], instead of having circle,
> I get triangle shape with a dot in the middle!
>
> What should I do to solve this tiny/strange problem?
>
> Thanks in advance,
> Sue

What platform are you running on?  Linux?  Windows?  OSX?

What version of octave are you using (at the octave prompt type version)?

What version of gnuplot are you using (type "gnuplot --version" at a 
command line)?

Dan

[OctDev] circle symbol in Octave

[Surandokht N. <sur...@gm...>]

Hello,

 I have a question regarding symbols in plotting. I wonder about the very
basic one, which is circle 'o'.
When I use this for plotting [plot(x,y,'o')], instead of having circle, I
get triangle shape with a dot in the middle!

What should I do to solve this tiny/strange problem?

Thanks in advance,
Sue

Re: [OctDev] "image-2.0.0.tar.gz" fails to install (Octave 3.6.2, Windows)

[Carnë D. <car...@gm...>]

On 15 November 2012 17:01, Gerald Gmachmeir <Ger...@jk...> wrote:
> On 15.11.2012 16:53, Carnė Draug wrote:
>> There are indeed a lot of changes for the new version of
>> the image package but if you may have to wait until one of the devs
>> involved with windows prepare a new release of this package.
>
>
> ... I will wait.
> ... hopefully not to long ... I am currently learning image processing, and
> it would be very nice to use the new version, because it has a lot of
> changes and improvements.

Well, the really really non recommended way would be to just find
where your .m files of image package version 1.0.15 are and replace
all of them (except bwdist.m) with the ones from the image 2.0.0
version. This will cover most of the changes on the new version. The
changes that you won't see should be the new function bwlabeln and a
bug in bwfill (which you can workaround by always use
logical(bwlabel(x)) instead). It should work but is not pretty at all.

Carnë

Re: [OctDev] "image-2.0.0.tar.gz" fails to install (Octave 3.6.2, Windows)

[Gerald G. <Ger...@jk...>]

Hi,

On 15.11.2012 16:53, Carnë Draug wrote:
> On 15 November 2012 14:33, Gerald Gmachmeir <Ger...@jk...> wrote:
>> According to the dependencies mentioned, I installed the packages
>> general-1.3.2.tar.gz and signal-1.2.0.tar.gz, and also
>> miscellaneous-1.2.0.tar.gz and physicalconstants-1.0.0.tar.gz - all without
>> any error.
>
> The physicalconstants package is not necessary at all. It's not a
> dependency of anything and if you look at it (just type "news
> physicalconstants" at the octave prompt) you will see why it exists
> even though it implements no function at all. You would do better
> removing it and forget it existed.

OK, I will remove it.

>> Trying to install image-2.0.0.tar.gz gives afore mentioned error message.
>>
>> File "lo-cutils.h" (mentioned in the error message):
>>>
>>> line 50> OCTAVE_API pid_t
>>> line 51> octave_waitpid (pid_t pid, int *status, int options);
>
> This problem seems to be specific to windows and reside somewhere in
> octave core.

Bad to hear this ...

> There are indeed a lot of changes for the new version of
> the image package but if you may have to wait until one of the devs
> involved with windows prepare a new release of this package.

... I will wait.
... hopefully not to long ... I am currently learning image processing, 
and it would be very nice to use the new version, because it has a lot 
of changes and improvements.

>> I thought that perhaps the updated packages must be "activated" and loaded
>> them (pkg load general, pkg load signal, pkg load windows), but the error
>> messages remains the same.
>
> No. Other packages are not necessary for the installation, no need to
> actually load them before.

OK.
(I expected this behavour, but I wanted to be sure not to have missed 
anything.)

> Carnë

THANK YOU for your very fast reply! A paid-for hotline could not be 
faster than you!

Best wishes to you all,
Gerald

Re: [OctDev] "image-2.0.0.tar.gz" fails to install (Octave 3.6.2, Windows)

[Carnë D. <car...@gm...>]

On 15 November 2012 14:33, Gerald Gmachmeir <Ger...@jk...> wrote:
> According to the dependencies mentioned, I installed the packages
> general-1.3.2.tar.gz and signal-1.2.0.tar.gz, and also
> miscellaneous-1.2.0.tar.gz and physicalconstants-1.0.0.tar.gz - all without
> any error.

The physicalconstants package is not necessary at all. It's not a
dependency of anything and if you look at it (just type "news
physicalconstants" at the octave prompt) you will see why it exists
even though it implements no function at all. You would do better
removing it and forget it existed.

> Trying to install image-2.0.0.tar.gz gives afore mentioned error message.
>
> File "lo-cutils.h" (mentioned in the error message):
>>
>> line 50> OCTAVE_API pid_t
>> line 51> octave_waitpid (pid_t pid, int *status, int options);

This problem seems to be specific to windows and reside somewhere in
octave core. There are indeed a lot of changes for the new version of
the image package but if you may have to wait until one of the devs
involved with windows prepare a new release of this package.

> I thought that perhaps the updated packages must be "activated" and loaded
> them (pkg load general, pkg load signal, pkg load windows), but the error
> messages remains the same.

No. Other packages are not necessary for the installation, no need to
actually load them before.

Carnë

[OctDev] "image-2.0.0.tar.gz" fails to install (Octave 3.6.2, Windows)

[Gerald G. <Ger...@jk...>]

Hi,

The image package fails to install, error:

> octave:21> pkg install image-2.0.0.tar.gz
> In file included from d:\Portables\Octave3.6.2_gcc4.6.2\include\octave-3.6.2\octave/lo-utils.h:31:0,
>                  from d:\Portables\Octave3.6.2_gcc4.6.2\include\octave-3.6.2\octave/Array.h:38,
>                  from d:\Portables\Octave3.6.2_gcc4.6.2\include\octave-3.6.2\octave/boolMatrix.h:27,
>                  from d:\Portables\Octave3.6.2_gcc4.6.2\include\octave-3.6.2\octave/mx-base.h:32,
>                  from d:\Portables\Octave3.6.2_gcc4.6.2\include\octave-3.6.2\octave/Matrix.h:30,
>                  from d:\Portables\Octave3.6.2_gcc4.6.2\include\octave-3.6.2\octave/oct.h:33,
>                  from bwlabeln.cc:20:
> d:\Portables\Octave3.6.2_gcc4.6.2\include\octave-3.6.2\octave/lo-cutils.h:50:12: error: 'pid_t' does not name a type
> g++: error: bwlabeln.o: No such file or directory
> make: *** [bwlabeln.oct] Error 1
> 'make' returned the following error: make: Entering directory `/tmp/oct-15/image/src'
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 __spatial_filtering__.cc
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 __bilateral__.cc
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 __custom_gaussian_smoothing__.cc
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 __boundary__.cc
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 bwlabel.cc
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 bwfill.cc
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 rotate_scale.cc
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 hough_line.cc
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 graycomatrix.cc
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 __bwdist__.cc
> D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 nonmax_supress.cc
> CXXFLAGS='-g -O2 -std=c++0x -Wall' D:/Portables/Octave3.6.2_gcc4.6.2/bin/mkoctfile-3.6.2 bwlabeln.cc
> make: Leaving directory `/tmp/oct-15/image/src'
> error: called from `pkg>configure_make' in file D:\Portables\Octave3.6.2_gcc4.6.2\share\octave\3.6.2\m\pkg\pkg.m near l
> ne 1385, column 9
> error: called from:
> error:   D:\Portables\Octave3.6.2_gcc4.6.2\share\octave\3.6.2\m\pkg\pkg.m at line 827, column 5
> error:   D:\Portables\Octave3.6.2_gcc4.6.2\share\octave\3.6.2\m\pkg\pkg.m at line 383, column 9
> octave:21>
> octave:21> pkg update
> error: get_forge_pkg: package NAME exists, but index page not available
> error: called from:
> error:   D:\Portables\Octave3.6.2_gcc4.6.2\share\octave\3.6.2\m\pkg\private\get_forge_pkg.m at line 69, column 9
> error:   D:\Portables\Octave3.6.2_gcc4.6.2\share\octave\3.6.2\m\pkg\pkg.m at line 523, column 29
> octave:21>


I attach the complete output of the Octave window.


My configuration:
Windows XP SP3 (German)
Octave installed in: D:\Portables\Octave3.6.2_gcc4.6.2


I have installed both 7z-archives from 
http://sourceforge.net/projects/octave/files/Octave%20Windows%20binaries/Octave%203.6.2%20for%20Windows%20MinGW%20installer/ 
according to the "Manual installation instructions". Octave seems to 
work ok.

Now I wanted to update the image package to the new version 2.

According to the dependencies mentioned, I installed the packages 
general-1.3.2.tar.gz and signal-1.2.0.tar.gz, and also 
miscellaneous-1.2.0.tar.gz and physicalconstants-1.0.0.tar.gz - all 
without any error.

Trying to install image-2.0.0.tar.gz gives afore mentioned error message.

File "lo-cutils.h" (mentioned in the error message):
> line 50> OCTAVE_API pid_t
> line 51> octave_waitpid (pid_t pid, int *status, int options);

I thought that perhaps the updated packages must be "activated" and 
loaded them (pkg load general, pkg load signal, pkg load windows), but 
the error messages remains the same.

I also attach a screenshot of a directory including the directory tree 
in the TEMP folder. This directory seems to contain files that are 
mentioned in the error message. Some files have been left over from the 
installations. The last attempt of installing image-2.0.0.tar.gz gave 
directory "oct-14".


Being a very new user of Octave, I could have done something wrong, but 
I rather think that there is some bug.
How can I help resolving this problem?
I have basic knowledge of programming and PCs.
I am a very new user of Octave, I installed it just one week ago. (I am 
currently attending a lecture about image processing, and I would like 
to use Octave for this purpose. Therefore the image package is important 
for me.)

Thank you for your work on this great project!
Sorry for my bad English, it is not my native language.

Best wishes,
Gerald

Re: [OctDev] [pkg.m] Code sprint

[Juan P. C. <aju...@gm...>]

On Wed, Nov 14, 2012 at 4:07 AM, Michael D. Godfrey
<mic...@gm...> wrote:
> On 11/13/2012 06:16 PM, Sergei Steshenko wrote:
>>
>> Or you think existence of SW architects is a human race mistake and they
>> are unnecessary ?
>>
>> Regards,
>>    Sergei.
>
> I am with you, Sergei.  I have been there: spec and USER doc first, then
> design,
> then consider some coding.  I know this is boring and old fashioned and...,
> but I
> can tell you some important software that came out right following this
> sequence.
>
> Michael Godfrey
>

Thank you,

We acknowledge your suggestion, it doesn't mean we are going to follow it :D
If you want to do it. You are very welcome!

Re: [OctDev] [pkg.m] Code sprint

[Michael D. G. <mic...@gm...>]

On 11/13/2012 06:16 PM, Sergei Steshenko wrote:
> Or you think existence of SW architects is a human race mistake and they are unnecessary ?
>
> Regards,
>    Sergei.
I am with you, Sergei.  I have been there: spec and USER doc first, then 
design,
then consider some coding.  I know this is boring and old fashioned 
and..., but I
can tell you some important software that came out right following this 
sequence.

Michael Godfrey

Re: [OctDev] [pkg.m] Code sprint

[Sergei S. <ser...@ya...>]

>________________________________
> From: Juan Pablo Carbajal <aju...@gm...>
>To: Octave Forge <oct...@li...>; hel...@oc...; Octave Maintainers <oct...@oc...> 
>Sent: Tuesday, November 13, 2012 3:12 PM
>Subject: Re: [pkg.m] Code sprint
> 
>On Thu, Nov 1, 2012 at 1:08 PM, Juan Pablo Carbajal
><aju...@gm...> wrote:
>> Hi all,
>>
>> The code sprint to improve pkg.m will take place on the 17th and 18th
>> of November.
>> Choose your task here
>> http://wiki.octave.org/Code_sprint:_pkg.m
>>
>> If you still want to join us you can add yourself here or just pop in
>> in the IRC channel those days.
>> http://doodle.com/x3bh7ity5knekda8
>>
>> See you space coder ...
>
>This is just a friendly reminder of the code sprint dedicated to
>improve pkg.m to happen during the 17th and 18th of November (meeting
>point, the IRC channel #octave at irc.freenode.net).
>
>View the current lists of taks here (suggestions, commetn, potentiual
>drawbacks, please let us know)
>http://wiki.octave.org/Code_sprint:_pkg.m
>
>Read the latest post by Carnë (Forge project leader) here
>http://octave-forge.blogspot.com/2012/11/pkg-package-system-and-structure.html
>
>
>Join us!
>
>KaKiLa
>_______________________________________________
>Help-octave mailing list
>Hel...@oc...
>https://mailman.cae.wisc.edu/listinfo/help-octave
>
>

Has anybody already written a _spec_ for Octave packaging ?

If not, why to step on the same rake again, i.e. what is the sense of writing code with no set goals and no analysis that those unset yet goals do not contradict each other ?

Or you think existence of SW architects is a human race mistake and they are unnecessary ?

Regards,
  Sergei.

Re: [OctDev] ginput doesn't work

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

On 11/13/2012 02:05 PM, Martin Helm wrote:
> You run the qthandles toolkit which has no implementation for ginput,
> switch to one of the others and try with that
>
> close all
> graphics_toolkit fltk
>
> for example at the octave prompt (you may need to close all graphics
> before with the close all).

Ah, I now see where the "qt" originated from.

Dan

Re: [OctDev] ginput doesn't work

[Henque <he...@ho...>]

Hello Dan,
I only chose it to maintain the compatibility with other applications.

Hector

Date: Tue, 13 Nov 2012 12:41:32 -0800
From: ml-...@n4...
To: he...@ho...
Subject: Re: ginput doesn't work



	On 11/13/2012 02:26 PM, Henque wrote:

> Hello,

>

> Sorry for the mistake. I've just started working with octave.

> First, I installed octave with the default parameters : "Toolkit = qt".  I

> have just uninstalled and reinstalled it  but this time I chose "Gnuplot" as

> graphics toolkit and the problem is solved.

>

> Thanks a lot.

> Hector


You're welcome.


Just curious why you chose Qt initially.  Would you like the Qt 

interface on your system?  One thing we are attempting at the moment is 

using Qt toolkit via gnuplot.  In linux, it works.  Windows, we suspect not.


Dan




> --

> View this message in context: http://octave.1599824.n4.nabble.com/ginput-doesn-t-work-tp4646576p4646594.html
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>

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-- 


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email: daniel(DOT)sebald(AT)ieee(DOT)org

URL: http://www(DOT)dansebald(DOT)com

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Re: [OctDev] ginput doesn't work

[Salva A. <js...@gm...>]

El Dimarts, 13 de novembre de 2012, a les 14:52:05, Daniel J Sebald va 
escriure:

> On 11/13/2012 02:45 PM, Salva Ardid wrote:
> > El Dimarts, 13 de novembre de 2012, a les 14:41:09, Daniel J Sebald va
> > 
> > escriure:
> >> On 11/13/2012 02:26 PM, Henque wrote:
> >>> Hello,
> >>> 
> >>> Sorry for the mistake. I've just started working with octave.
> >>> First, I installed octave with the default parameters : "Toolkit = qt". 
> >>> I
> >>> have just uninstalled and reinstalled it  but this time I chose
> >>> "Gnuplot"
> >>> as graphics toolkit and the problem is solved.
> >>> 
> >>> Thanks a lot.
> >>> Hector
> >> 
> >> You're welcome.
> >> 
> >> Just curious why you chose Qt initially.  Would you like the Qt
> >> interface on your system?  One thing we are attempting at the moment is
> >> using Qt toolkit via gnuplot.  In linux, it works.  Windows, we suspect
> >> not.
> >> 
> >> Dan
> >> 
> >>> --
> >>> View this message in context:
> >>> http://octave.1599824.n4.nabble.com/ginput-doesn-t-work-tp4646576p464659
> >>> 4
> >>> .html Sent from the Octave - Dev mailing list archive at Nabble.com.
> >>> 
> >>> ------------------------------------------------------------------------
> >>> --
> >>> ---- Monitor your physical, virtual and cloud infrastructure from a
> >>> single
> >>> web console. Get in-depth insight into apps, servers, databases, vmware,
> >>> SAP, cloud infrastructure, etc. Download 30-day Free Trial.
> >>> Pricing starts from $795 for 25 servers or applications!
> >>> http://p.sf.net/sfu/zoho_dev2dev_nov
> >>> _______________________________________________
> >>> Octave-dev mailing list
> >>> Oct...@li...
> >>> https://lists.sourceforge.net/lists/listinfo/octave-dev
> > 
> > "One thing we are attempting at the moment is using Qt toolkit via
> > gnuplot"
> > 
> > Is this the QtHandles code or something different? I use Linux and I'd
> > like to test it...
> 
> Not QtHandles, I believe.  What I'm referring to basically requires a
> recent version of gnuplot having "qt" terminal support and set the
> environment variable GNUTERM to "qt".  (The Windows--and some Apple
> OSX--issue is fork.)
> 
> Dan

Wow! it looks amazing...

thanks for telling,
Salva

Re: [OctDev] ginput doesn't work

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

On 11/13/2012 02:45 PM, Salva Ardid wrote:
>
>
> El Dimarts, 13 de novembre de 2012, a les 14:41:09, Daniel J Sebald va
> escriure:
>
>> On 11/13/2012 02:26 PM, Henque wrote:
>>> Hello,
>>>
>>> Sorry for the mistake. I've just started working with octave.
>>> First, I installed octave with the default parameters : "Toolkit = qt".  I
>>> have just uninstalled and reinstalled it  but this time I chose "Gnuplot"
>>> as graphics toolkit and the problem is solved.
>>>
>>> Thanks a lot.
>>> Hector
>>
>> You're welcome.
>>
>> Just curious why you chose Qt initially.  Would you like the Qt
>> interface on your system?  One thing we are attempting at the moment is
>> using Qt toolkit via gnuplot.  In linux, it works.  Windows, we suspect not.
>>
>> Dan
>>
>>> --
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>
> "One thing we are attempting at the moment is using Qt toolkit via gnuplot"
>
> Is this the QtHandles code or something different? I use Linux and I'd like to
> test it...

Not QtHandles, I believe.  What I'm referring to basically requires a 
recent version of gnuplot having "qt" terminal support and set the 
environment variable GNUTERM to "qt".  (The Windows--and some Apple 
OSX--issue is fork.)

Dan

Re: [OctDev] ginput doesn't work

[Salva A. <js...@gm...>]

El Dimarts, 13 de novembre de 2012, a les 14:41:09, Daniel J Sebald va 
escriure:

> On 11/13/2012 02:26 PM, Henque wrote:
> > Hello,
> > 
> > Sorry for the mistake. I've just started working with octave.
> > First, I installed octave with the default parameters : "Toolkit = qt".  I
> > have just uninstalled and reinstalled it  but this time I chose "Gnuplot"
> > as graphics toolkit and the problem is solved.
> > 
> > Thanks a lot.
> > Hector
> 
> You're welcome.
> 
> Just curious why you chose Qt initially.  Would you like the Qt
> interface on your system?  One thing we are attempting at the moment is
> using Qt toolkit via gnuplot.  In linux, it works.  Windows, we suspect not.
> 
> Dan
> 
> > --
> > View this message in context:
> > http://octave.1599824.n4.nabble.com/ginput-doesn-t-work-tp4646576p4646594
> > .html Sent from the Octave - Dev mailing list archive at Nabble.com.
> > 
> > --------------------------------------------------------------------------
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> > web console. Get in-depth insight into apps, servers, databases, vmware,
> > SAP, cloud infrastructure, etc. Download 30-day Free Trial.
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"One thing we are attempting at the moment is using Qt toolkit via gnuplot"

Is this the QtHandles code or something different? I use Linux and I'd like to 
test it...

Re: [OctDev] ginput doesn't work

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

On 11/13/2012 02:26 PM, Henque wrote:
> Hello,
>
> Sorry for the mistake. I've just started working with octave.
> First, I installed octave with the default parameters : "Toolkit = qt".  I
> have just uninstalled and reinstalled it  but this time I chose "Gnuplot" as
> graphics toolkit and the problem is solved.
>
> Thanks a lot.
> Hector

You're welcome.

Just curious why you chose Qt initially.  Would you like the Qt 
interface on your system?  One thing we are attempting at the moment is 
using Qt toolkit via gnuplot.  In linux, it works.  Windows, we suspect not.

Dan



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> View this message in context: http://octave.1599824.n4.nabble.com/ginput-doesn-t-work-tp4646576p4646594.html
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>
> ------------------------------------------------------------------------------
> Monitor your physical, virtual and cloud infrastructure from a single
> web console. Get in-depth insight into apps, servers, databases, vmware,
> SAP, cloud infrastructure, etc. Download 30-day Free Trial.
> Pricing starts from $795 for 25 servers or applications!
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> _______________________________________________
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>

-- 

Dan Sebald
email: daniel(DOT)sebald(AT)ieee(DOT)org
URL: http://www(DOT)dansebald(DOT)com

Re: [OctDev] ginput doesn't work

[Henque <he...@ho...>]

Hello,

Sorry for the mistake. I've just started working with octave.
First, I installed octave with the default parameters : "Toolkit = qt".  I
have just uninstalled and reinstalled it  but this time I chose "Gnuplot" as
graphics toolkit and the problem is solved.

Thanks a lot.
Hector



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Re: [OctDev] ginput doesn't work

[Martin H. <ma...@nu...>]

You run the qthandles toolkit which has no implementation for ginput,
switch to one of the others and try with that

close all
graphics_toolkit fltk

for example at the octave prompt (you may need to close all graphics
before with the close all).

Re: [OctDev] ginput doesn't work

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

On 11/13/2012 01:28 PM, Henque wrote:
> Hello Dan,
>
> Thanks for reply me.
> My graphics type is a: "Mobile Intel(R) 965 Express Chipset Family".

Too precise.  :-)


> Just to be more precise, I installed this version of octave "Octave 3.6.2
> for Windows Microsoft Visual Studio".

Octave uses a graphics engine to draw the figures.  What we mean by 
"engine" at this level is a different program that draws the lines, 
fonts, etc. for display on the screen.  "gnuplot" means that Octave is 
using gnuplot plotting program to create figures.  "fltk" means that 
Octave is using a drawing library.  "qt" (what you are seeing) would 
mean that some form of the Qt user-interface tools is being used.

Please describe what your window looks like that contains the grayscale 
image created by your "image" command.  Are there some icons?  If so 
what do those icons look like?

Dan

Re: [OctDev] ginput doesn't work

[Andy B. <and...@gm...>]

On 13 November 2012 19:28, Henque <he...@ho...> wrote:

> Hello Dan,
>
> Thanks for reply me.
> My graphics type is a: "Mobile Intel(R) 965 Express Chipset Family".
> Just to be more precise, I installed this version of octave "Octave 3.6.2
> for Windows Microsoft Visual Studio".
>
> Thanks,
> Hector
>


That's your graphics card. Dan is asking which graphics library option
Octave is using. Run that "toolkit" command he suggested through Octave to
find out.
-- 
/* andy buckle */

Re: [OctDev] ginput doesn't work

[Henque <he...@ho...>]

Hello Dan,

Thanks for reply me. 
My graphics type is a: "Mobile Intel(R) 965 Express Chipset Family".
Just to be more precise, I installed this version of octave "Octave 3.6.2
for Windows Microsoft Visual Studio".

Thanks,
Hector



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Re: [OctDev] ginput doesn't work

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

On 11/13/2012 08:54 AM, Henque wrote:
> Hello,
>
> I've installed octave 3.6.2 on windows XP. And I try to use the function
> "ginput" :
>
> imshow(rand(100))
> [x,y]=ginput(1)
>
> But I get this error:
>
> error: feval: function '__qt_ginput__' no found
> error: called from:
> error:<>\m\plot\ginput.m at line 41, column 21
>
>
> Does anyone have an idea?

Hi Héctor,

I'm not exactly sure because this works on a fairly recent development 
version on my linux system.  I am using gnuplot for the graphics and get 
a toolkit description of

octave:3> toolkit = (get (gcf, "__graphics_toolkit__"))
toolkit = gnuplot

for both command line interface and GUI.

 From the error message you've shown, you should get a toolkit 
description of "qt".  I've searched the script codes in the source tree 
and don't immediately see how "qt" could end up in your figure structure.

What graphics are you using on your Windows XP system?  Is it gnuplot, 
fltk, something else?  (I ask because I haven't much experience with how 
Octave behaves under Windows.)  If you don't know that, please describe 
what the window containing the image of random grey pixels looks like.

Dan

[OctDev] ginput doesn't work

[Henque <he...@ho...>]

Hello,

I've installed octave 3.6.2 on windows XP. And I try to use the function
"ginput" :

imshow(rand(100))
[x,y]=ginput(1)

But I get this error:

error: feval: function '__qt_ginput__' no found
error: called from:
error: <>\m\plot\ginput.m at line 41, column 21


Does anyone have an idea?

Thanks
Héctor.






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