numexp-discuss

[NumExp-discuss] gnumexp and numexp-kernel

[David B. <bo...@wa...>]

Hi Gustavo,

I think you are the best to answer this question :-)

When I launch gnumexp and then exit.

I always have numexp-kernel running in the background. That does not
happen with numexp-client.

I have seen that the Numexp-Kernel object is referenced two times when I
lauch gnumexp. But when I close it, it is unreferenced only one time.

Do you know how to fix it ?

Thanks.
Regards.

David.

Re: [NumExp-discuss] gnumexp and numexp-kernel

[Gustavo J. A. M. C. <gj...@in...>]

On Mon, 2006-02-13 at 11:42 +0100, David Boucher wrote:
> Hi Gustavo,
> 
> I think you are the best to answer this question :-)
> 
> When I launch gnumexp and then exit.
> 
> I always have numexp-kernel running in the background. That does not
> happen with numexp-client.
> 
> I have seen that the Numexp-Kernel object is referenced two times when I
> lauch gnumexp. But when I close it, it is unreferenced only one time.
> 
> Do you know how to fix it ?

  Find the kernel.py module, add a function shutdown() that does "global
kernel; kernel.unref(); kernel = None"

  In the gnumexp 'shell', import kernel, and call kernel.shutdown()
where gtk.main_quit() is called.

PS: sorry I haven't been paying attention to gnumexp lately; I promise
to have another go when gtk+ 2.10 comes out, with cairo PDF support and
a print dialog.

-- 
Gustavo J. A. M. Carneiro
<gj...@in...> <gu...@us...>
The universe is always one step beyond logic.

Re: [NumExp-discuss] gnumexp and numexp-kernel

[Jon Roadley-B. <jon...@gm...>]

Is it the plan to migrate the GUI to GTK-2.10 when it comes out?
and take full advantage of Cairo vectoring for graphics?

I might not be able to help with the kernel of numexp (I'm just an engineer=
)
but if the GUI is coded in PYTHON (which from what I have seen it is, I
should be able to help out there.

Also looking at the dependancies there is a libnxplot, this seems a specifi=
c
module custom-written for numexp for the soul purpose of plotting?
have you looked into the matplotlib python module, it is extreamly flexable
and powerful and if you are familiar with matlab they have done a very good
job of making hte python-code used by matlibplot matlab-like

it can be interfaced with GTK as well



On 13/02/06, Gustavo J. A. M. Carneiro <gj...@in...> wrote:
>
> On Mon, 2006-02-13 at 11:42 +0100, David Boucher wrote:
> > Hi Gustavo,
> >
> > I think you are the best to answer this question :-)
> >
> > When I launch gnumexp and then exit.
> >
> > I always have numexp-kernel running in the background. That does not
> > happen with numexp-client.
> >
> > I have seen that the Numexp-Kernel object is referenced two times when =
I
> > lauch gnumexp. But when I close it, it is unreferenced only one time.
> >
> > Do you know how to fix it ?
>
>   Find the kernel.py module, add a function shutdown() that does "global
> kernel; kernel.unref(); kernel =3D None"
>
>   In the gnumexp 'shell', import kernel, and call kernel.shutdown()
> where gtk.main_quit() is called.
>
> PS: sorry I haven't been paying attention to gnumexp lately; I promise
> to have another go when gtk+ 2.10 comes out, with cairo PDF support and
> a print dialog.
>
> --
> Gustavo J. A. M. Carneiro
> <gj...@in...> <gu...@us...>
> The universe is always one step beyond logic.
>
>
>
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Re: [NumExp-discuss] gnumexp and numexp-kernel

[Gustavo J. A. M. C. <gj...@in...>]

On Seg, 2006-02-13 at 13:19 +0000, Jon Roadley-Battin wrote:
> Is it the plan to migrate the GUI to GTK-2.10 when it comes out? 
> and take full advantage of Cairo vectoring for graphics?
> 
> I might not be able to help with the kernel of numexp (I'm just an
> engineer) but if the GUI is coded in PYTHON (which from what I have
> seen it is, I should be able to help out there. 
> 
> Also looking at the dependancies there is a libnxplot, this seems a
> specific module custom-written for numexp for the soul purpose of
> plotting?

  libnxplot is a more modern replacement for GNU libplot.  It predates
Cairo.  The idea is to drop nxplot and use Cairo, once Cairo has decent
printing support.  At the moment, Cairo isn't ready for printing.

> have you looked into the matplotlib python module, it is extreamly
> flexable and powerful and if you are familiar with matlab they have
> done a very good job of making hte python-code used by matlibplot
> matlab-like 

  gNumExp plotting code also predates matplotlib.  We are pioneers in
some respects (see also our pioneering mathml renderer) ;-)

  I'd look at matplotlib if I didn't have tons of other things to do
first :P

  Regards,

-- 
Gustavo J. A. M. Carneiro
<gj...@in...> <gu...@us...>
The universe is always one step beyond logic.