visualpython-users

Re: [Visualpython-users] python-visual in Debian archive

[Bruce S. <Bru...@nc...>]

Yes, do send it to me. I'm way behind in updating vpython.org but the=20
semester will end soon and I'll catch my breath!

Bru...@nc...

Flavio Coelho wrote:
> While we're on the subject of distributions,
>=20
> I wrote an ebuild for VPython  for Gentoo Linux. I already submitted it=
=20
> to gentoo-bugzilla (Gentoo's official package submission channel), but=20
> it will be a while before it is included into the portage tree.
>=20
> If the maintainers of the VPython website are interested, I can mail=20
> them the ebuild so that it can be made available for download from the=20
> website (at least until it becomes available from portage).
>=20
> Cheers,
>=20
>=20
>=20
>=20
>=20
> On 4/19/05, *Floris Bruynooghe* <fb...@so...=20
> <mailto:fb...@so...>> wrote:
>=20
>     Hi
>=20
>     Thought I'd let the intrested people know that the python-visual
>     package is finally in the official Debian archive, it actually made
>     it's way into sarge already.  Many thanks to Jonas Smedegaard for
>     adopting the package and making this possible.
>=20
>=20
>=20
>=20
> --=20
> Fl=E1vio Code=E7o Coelho
> registered Linux user # 386432
> ---------------------------
> Great spirits have always found violent opposition from mediocrities. T=
he
> latter cannot understand it when a man does not thoughtlessly submit to
> hereditary prejudices but honestly and courageously uses his intelligen=
ce.
>         Albert Einstein

Re: [Visualpython-users] python-visual in Debian archive

[Flavio C. <fcc...@gm...>]

While we're on the subject of distributions,

I wrote an ebuild for VPython for Gentoo Linux. I already submitted it to=
=20
gentoo-bugzilla (Gentoo's official package submission channel), but it will=
=20
be a while before it is included into the portage tree.

If the maintainers of the VPython website are interested, I can mail them=
=20
the ebuild so that it can be made available for download from the website=
=20
(at least until it becomes available from portage).=20

Cheers,





On 4/19/05, Floris Bruynooghe <fb...@so...> wrote:
>=20
> Hi
>=20
> Thought I'd let the intrested people know that the python-visual
> package is finally in the official Debian archive, it actually made
> it's way into sarge already. Many thanks to Jonas Smedegaard for
> adopting the package and making this possible.
>=20
>=20


--=20
Fl=E1vio Code=E7o Coelho
registered Linux user # 386432
---------------------------
Great spirits have always found violent opposition from mediocrities. The
latter cannot understand it when a man does not thoughtlessly submit to
hereditary prejudices but honestly and courageously uses his intelligence.
Albert Einstein

[Visualpython-users] python-visual in Debian archive

[Floris B. <fb...@so...>]

Hi

Thought I'd let the intrested people know that the python-visual
package is finally in the official Debian archive, it actually made
it's way into sarge already.  Many thanks to Jonas Smedegaard for
adopting the package and making this possible.


Floris

PS: I never said I was an Ubuntu user... I just said I value the work
they do.  Eh well, my standard signature might give away my OS
preference.  ;-)

-- 
Debian GNU/Linux -- The power of freedom
www.debian.org | www.gnu.org | www.kernel.org

[Visualpython-users] compiling under OS X

[Brad M. <bon...@ma...>]

Hello,

I've been trying to get visual-3.1.1 to compile using the natively  
installed version of python under 10.3.8.
I run into this compiler error when compiling frame.cpp.

/opt/local/include/boost/python/object/py_function.hpp:38:    
instantiated from `PyObject*  
boost::python::objects::caller_py_function_impl<Caller>:: 
operator()(PyObject*, PyObject*) [with Caller =  
boost::python::detail::caller<visual::shared_vector&(visual:: 
Primitive::*)(), boost::python::return_internal_reference<1,  
boost::python::default_call_policies>,  
boost::mpl::vector2<visual::shared_vector&, visual::frame&> >]'
/opt/local/include/boost/python/slice_nil.hpp:60:   instantiated from  
here
/opt/local/include/boost/python/detail/wrapper_base.hpp:64: error:  
cannot
    dynamic_cast `x' (of type `const volatile class  
visual::shared_vector*') to
    type `const volatile class boost::python::detail::wrapper_base*'  
(source
    type is not polymorphic)

In looking at the Boost FAQ  it appears that this may be a known  
problem with the gnu compiler on the mac.  There is a cryptic  
workaround suggested, but I've tried that as best I can with no luck.

Any suggestions, or should I just accept that I will need to use the  
fink version under X11?

Thanks,

Brad

Brad Miller, PhD
Assistant Professor
Luther College
http://www.cs.luther.edu/~bmiller
jabber:  bn...@ja...

Re: [Visualpython-users] problem with compiling

[Floris B. <fb...@so...>]

On Tue, Apr 12, 2005 at 10:11:48PM +0200, St=E9phane Linossier wrote:
> Hello,
> I try, without success, to compile the Visual Module on an Debian Sarge=
.
> Can you help me ?
> I join the files build.log and display.h where first appear an error.

Hi

I'm not entirely sure what your error is but it kind of looks like you
have the wrong version of a package or a missing package.

Anyway, there are debian packages ready from
http://www.soton.ac.uk/~fb102/Debian.  If you are using i386 hardware
you can just grab the .deb file and install it using=20

$ dpkg -i python-visual_3.1.1-2_i386.deb

If you have an other architecture you'll need the .dsc, .diff.gz and
.orig.tar.gz files.  Drop them in a directory, and run=20

$ dpkg-source -x python-visual_3.1.1-2.dsc

Where dpkg-source is in the dpkg-dev package, so you'll need that
installed.
Next read the file python-visual-3.1.1/debian/control and make sure
you have all the packages listed on the second line "Build-Depends:"
installed (sorry, no automated way afaik).  Then just execute:

$ cd python-visual-3.1.1
$ dpkg-buildpackage -r fakeroot
$ ${GET_ROOT} dpkg -i ../python-visual-3.1.1-2_${ARCH}.deb

[errors might have slipped in here, I'm humanoid!]


I just checked and the package still builds fine in the current
sarge...


Hope this helped
Floris

--=20
Debian GNU/Linux -- The power of freedom
www.debian.org | www.gnu.org | www.kernel.org

[Visualpython-users] problem with compiling

[L. <sli...@ya...>]

Hello,
I try, without success, to compile the Visual Module on an Debian Sarge.
Can you help me ?
I join the files build.log and display.h where first appear an error.
Sorry for my english

Thank you.

St=C3=A9phane Linossier

[Visualpython-users] VPython ebuild

[Flavio C. <fcc...@gm...>]

Hi,

I am thinking of writing, submitting an ebuild of VPython for Gentoo Linux.

Has anyone done that already, or is doing it?

for those unfamiliar with Gentoo, an ebuild is an installation script that=
=20
allows the user to compile and install a given application with a single=20
command: "emerge name_of_app"

cheers,

--=20
Fl=E1vio Code=E7o Coelho
registered Linux user # 386432
---------------------------
Great spirits have always found violent opposition from mediocrities. The
latter cannot understand it when a man does not thoughtlessly submit to
hereditary prejudices but honestly and courageously uses his intelligence.
Albert Einstein

[Visualpython-users] VPython & XPaint?

[Joel K. <jj...@ya...>]

The X-Windows graphics program XPaint has built-in
connections to C, but I was wondering if anyone had
made any interfaces &c between XPaint & VPython.

Joel



		
__________________________________ 
Do you Yahoo!? 
Yahoo! Small Business - Try our new resources site!
http://smallbusiness.yahoo.com/resources/

[Visualpython-users] Contributed pyODE program

[Bruce S. <Bru...@nc...>]

Miles Jacobs of South Africa has contributed an example of using Visual 
with pyODE, an open-source physics engine. See the "Contributed 
programs" section of vpython.org. There's a link there to get pyODE, 
which is needed to run the program. Thanks, Miles!

Bruce Sherwood

Re: [Visualpython-users] Trouble with VPython build on Linux

[Jonathan B. <jbr...@ea...>]

On Wed, 2005-04-06 at 14:19 -0500, Vic Kelson wrote:
> H again,
> 
> Okie-dokie. I didn't know about the cvisual/build.log file -- I was 
> wondering where the messages were <wink>. It appears that, for some 
> reason, the Boost includes and libs weren't in the right place. I'm 
> bjam'ing them again now (I did have 1.32 of Boost, btw). I hope this 
> fixes the problem...

Perform step 5 from "Build the Boost Libraries" on this page:
http://www.vpython.org/Building%20VPython%20on%20SuSE.html

As a side note, I've recently realized that the instructions and
configury for the source package contain a couple of Debianisms with
regard to finding the Boost libraries.  I will improve this in the next
release.

-Jonathan

Re: [Visualpython-users] Trouble with VPython build on Linux

[Flavio C. <fcc...@gm...>]

Ok, I've had this problem before.

make sure you have installed the python wrappers to the boost libraries. On=
=20
Debian they come as a separate .deb. I don't know about RH

good luck,

Flavio




On Apr 6, 2005 3:05 PM, Vic Kelson <vi...@wi...> wrote:
>=20
> Hi.
>=20
> I'm trying to build VP with gcc-3.4.3 (built from source) on RedHat 9. I
> installed all the dependencies, 'configure' works without a hitch, then
> 'make' fails. Please see below. Have I done something obvious wrong?
>=20
> THANKS!
> --vic
>=20
> checking the python module search path ...
> ['/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3',
> '/home/vic/workbench/sfwmd',
> '/opt/local/share2/apps/python-2.4.1/lib/python24.zip',
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4',
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4/plat-linux2',
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4/lib-tk',
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4/lib-dynload',
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4/site-packages',
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4/site-packages/Numeric'=
]
> configure: creating ./config.status
> config.status: creating Makefile
> config.status: creating cvisual/Makefile
> config.status: creating cvisual/vpython
> config.status: creating visual/Makefile
> config.status: creating docs/Makefile
> config.status: creating demos/Makefile
> config.status: creating idle_VPython/Makefile
> config.status: creating cvisual/config.h
> config.status: cvisual/config.h is unchanged
> config.status: executing depfiles commands
> [vic@rhl9 visual-3.0.3]$ make
> Making all in visual
> make[1]: Entering directory
> `/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/visual'
> make[1]: Nothing to be done for `all'.
> make[1]: Leaving directory
> `/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/visual'
> Making all in cvisual
> make[1]: Entering directory
> `/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/cvisual'
> Updating dependancy information for ring.cpp ...
> make[1]: *** [ring.d] Error 1
> make[1]: Leaving directory
> `/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/cvisual'
> make: *** [all-recursive] Error 1
> [vic@rhl9 visual-3.0.3]$
>=20
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now.
> http://ads.osdn.com/?ad_id=3D6595&alloc_id=3D14396&op=3Dclick
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>=20



--=20
Fl=E1vio Code=E7o Coelho
---------------------------
Great spirits have always found violent opposition from mediocrities. The
latter cannot understand it when a man does not thoughtlessly submit to
hereditary prejudices but honestly and courageously uses his intelligence.
Albert Einstein

[Visualpython-users] download location

[Floris B. <fb...@so...>]

Hi

Was just thinking about this last question.  Why is the sf page not
linked from the download instructions?  Could they not just say "grab
the latest version from sf" instead of statically link to one?


Floris

-- 
Debian GNU/Linux -- The power of freedom
www.debian.org | www.gnu.org | www.kernel.org

Re: [Visualpython-users] Trouble with VPython build on Linux

[Floris B. <fb...@so...>]

On Wed, Apr 06, 2005 at 02:19:43PM -0500, Vic Kelson wrote:
> Where do I get VPython-3.1.1 sources? I can only find 3.0.3 on the VP 
> website...

http://sourceforge.net/projects/visualpython/

have fun
Floris

-- 
Debian GNU/Linux -- The power of freedom
www.debian.org | www.gnu.org | www.kernel.org

Re: [Visualpython-users] Trouble with VPython build on Linux

[Vic K. <vi...@wi...>]

H again,

Okie-dokie. I didn't know about the cvisual/build.log file -- I was 
wondering where the messages were <wink>. It appears that, for some 
reason, the Boost includes and libs weren't in the right place. I'm 
bjam'ing them again now (I did have 1.32 of Boost, btw). I hope this 
fixes the problem...

Where do I get VPython-3.1.1 sources? I can only find 3.0.3 on the VP 
website...

THANKS again!
--v



Jonathan Brandmeyer wrote:

>On Wed, 2005-04-06 at 14:19 -0400, Neal M. Holtz wrote:
>
>  
>
>>I can send more detailed instructions, if you want.
>>
>>
>>On Wed, Apr 06, 2005 at 01:05:36PM -0500, Vic Kelson wrote:
>>    
>>
>>>Hi.
>>>
>>>I'm trying to build VP with gcc-3.4.3 (built from source)
>>>      
>>>
>
>Boost.Python 1.32 was the earliest version to support GCC 3.4.x; Is that
>what you have installed?  I also recommend that you install the latest
>release of VPython, version 3.1.1.
>
>  
>
>> on RedHat 9. I 
>>    
>>
>>>installed all the dependencies, 'configure' works without a hitch, then 
>>>'make' fails. Please see below. Have I done something obvious wrong?
>>>
>>>THANKS!
>>>--vic
>>>      
>>>
>
>You will have to read cvisual/build.log to see what error(s) the
>compiler produced.
>
>-Jonathan
>
>
>
>-------------------------------------------------------
>SF email is sponsored by - The IT Product Guide
>Read honest & candid reviews on hundreds of IT Products from real users.
>Discover which products truly live up to the hype. Start reading now.
>http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
>_______________________________________________
>Visualpython-users mailing list
>Vis...@li...
>https://lists.sourceforge.net/lists/listinfo/visualpython-users
>  
>

Re: [Visualpython-users] Trouble with VPython build on Linux

[Jonathan B. <jbr...@ea...>]

On Wed, 2005-04-06 at 14:19 -0400, Neal M. Holtz wrote:

> I can send more detailed instructions, if you want.
> 
> 
> On Wed, Apr 06, 2005 at 01:05:36PM -0500, Vic Kelson wrote:
> > Hi.
> > 
> > I'm trying to build VP with gcc-3.4.3 (built from source)

Boost.Python 1.32 was the earliest version to support GCC 3.4.x; Is that
what you have installed?  I also recommend that you install the latest
release of VPython, version 3.1.1.

>  on RedHat 9. I 
> > installed all the dependencies, 'configure' works without a hitch, then 
> > 'make' fails. Please see below. Have I done something obvious wrong?
> > 
> > THANKS!
> > --vic

You will have to read cvisual/build.log to see what error(s) the
compiler produced.

-Jonathan

Re: [Visualpython-users] Trouble with VPython build on Linux

[Neal M. H. <nh...@do...>]

I've some experience with SuSE 9.1 that might be similar.

After the compile fails, you have to look at cvisual/build.log

Mine ended with:

" g++ -I/usr/include/python2.3 -DHAVE_CONFIG_H -I. -I. -I/opt/gnome/include/gtk-1.2 -I/usr/X11R6/include -I/opt/gnome/include/glib-1.2 -I/opt/gnome/lib/glib/include -D_REENTRANT -I/opt/gnome/include/glib-1.2 -I/opt/gnome/lib/glib/include -I/opt/gnome/include -I/usr/local/include -fpic -DPIC -g -O2 -ftemplate-depth-120 -g0 -c cvisualmodule.cpp  -fPIC -DPIC -o .libs/cvisualmodule.o
" /usr/include/boost/mpl/if.hpp:75: internal compiler error: Segmentation fault
" Please submit a full bug report,
" with preprocessed source if appropriate.
" See <URL:http://www.suse.de/feedback> for instructions.
" Preprocessed source stored into /tmp/cck3x8YB.out file, please attach this to your bugreport.

I was using the default gcc-3.3.3 and boost 1-31, which, according to the special
SuSE docs, is OK.

However, I downloaded and compiled boost 1-32, and that cleared it up.
I got visual installed with no probs after that.

I can send more detailed instructions, if you want.


On Wed, Apr 06, 2005 at 01:05:36PM -0500, Vic Kelson wrote:
> Hi.
> 
> I'm trying to build VP with gcc-3.4.3 (built from source) on RedHat 9. I 
> installed all the dependencies, 'configure' works without a hitch, then 
> 'make' fails. Please see below. Have I done something obvious wrong?
> 
> THANKS!
> --vic
> 
> 
> checking the python module search path ... 
> ['/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3', 
> '/home/vic/workbench/sfwmd', 
> '/opt/local/share2/apps/python-2.4.1/lib/python24.zip', 
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4', 
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4/plat-linux2', 
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4/lib-tk', 
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4/lib-dynload', 
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4/site-packages', 
> '/opt/local/share2/apps/python-2.4.1/lib/python2.4/site-packages/Numeric']
> configure: creating ./config.status
> config.status: creating Makefile
> config.status: creating cvisual/Makefile
> config.status: creating cvisual/vpython
> config.status: creating visual/Makefile
> config.status: creating docs/Makefile
> config.status: creating demos/Makefile
> config.status: creating idle_VPython/Makefile
> config.status: creating cvisual/config.h
> config.status: cvisual/config.h is unchanged
> config.status: executing depfiles commands
> [vic@rhl9 visual-3.0.3]$ make
> Making all in visual
> make[1]: Entering directory 
> `/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/visual'
> make[1]: Nothing to be done for `all'.
> make[1]: Leaving directory 
> `/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/visual'
> Making all in cvisual
> make[1]: Entering directory 
> `/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/cvisual'
> Updating dependancy information for ring.cpp ...
> make[1]: *** [ring.d] Error 1
> make[1]: Leaving directory 
> `/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/cvisual'
> make: *** [all-recursive] Error 1
> [vic@rhl9 visual-3.0.3]$
> 
>   
> 
> 
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now.
> http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

-- 
Neal Holtz                             http://www.docuweb.ca/~nholtz
Dept. of Civil and Environmental Engineering,   Carleton University,   
Ottawa, Ontario, Canada K1S 5B6.                   nh...@do...

[Visualpython-users] Trouble with VPython build on Linux

[Vic K. <vi...@wi...>]

Hi.

I'm trying to build VP with gcc-3.4.3 (built from source) on RedHat 9. I 
installed all the dependencies, 'configure' works without a hitch, then 
'make' fails. Please see below. Have I done something obvious wrong?

THANKS!
--vic


checking the python module search path ... 
['/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3', 
'/home/vic/workbench/sfwmd', 
'/opt/local/share2/apps/python-2.4.1/lib/python24.zip', 
'/opt/local/share2/apps/python-2.4.1/lib/python2.4', 
'/opt/local/share2/apps/python-2.4.1/lib/python2.4/plat-linux2', 
'/opt/local/share2/apps/python-2.4.1/lib/python2.4/lib-tk', 
'/opt/local/share2/apps/python-2.4.1/lib/python2.4/lib-dynload', 
'/opt/local/share2/apps/python-2.4.1/lib/python2.4/site-packages', 
'/opt/local/share2/apps/python-2.4.1/lib/python2.4/site-packages/Numeric']
configure: creating ./config.status
config.status: creating Makefile
config.status: creating cvisual/Makefile
config.status: creating cvisual/vpython
config.status: creating visual/Makefile
config.status: creating docs/Makefile
config.status: creating demos/Makefile
config.status: creating idle_VPython/Makefile
config.status: creating cvisual/config.h
config.status: cvisual/config.h is unchanged
config.status: executing depfiles commands
[vic@rhl9 visual-3.0.3]$ make
Making all in visual
make[1]: Entering directory 
`/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/visual'
make[1]: Nothing to be done for `all'.
make[1]: Leaving directory 
`/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/visual'
Making all in cvisual
make[1]: Entering directory 
`/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/cvisual'
Updating dependancy information for ring.cpp ...
make[1]: *** [ring.d] Error 1
make[1]: Leaving directory 
`/opt/local/share2-gcc-3.4.3/src/python-extensions/visual-3.0.3/cvisual'
make: *** [all-recursive] Error 1
[vic@rhl9 visual-3.0.3]$

   

Re: [Visualpython-users] Error running vpython demos

[Jonathan B. <jbr...@ea...>]

On Mon, 2005-04-04 at 20:28 +0000, ozhan fenerci wrote:
> Hello,
> 
> I  have installed vpython on my RedHat9 system. I tried to run some vpython 
> demos in the demos directory. I was succesful running some of them. But when 
> I run  the lorenz.py and some other files, I get an error message saying 
> that:
> -------------------------------------------------------------------------------------------
> Visual-2003-10-05

Please upgrade to the latest release from our Sourceforge project page
(www.sourceforge.net/projects/visualpython), and see if the problem
persists.

Thanks,
-Jonathan

[Visualpython-users] Error running vpython demos

[ozhan f. <ofe...@ho...>]

Hello,

I  have installed vpython on my RedHat9 system. I tried to run some vpython 
demos in the demos directory. I was succesful running some of them. But when 
I run  the lorenz.py and some other files, I get an error message saying 
that:
-------------------------------------------------------------------------------------------
Visual-2003-10-05

Right button drag to rotate camera to view scene.
Middle button drag up or down to zoom in or out.

Traceback (innermost last)
  File "/usr/local/lib/python2.4/site-packages/visual/demos/lorenz.py", line 
12, in ?
    lorenz = curve( color = color.black, radius=0.3 )
TypeError: CXX: type error.
---------------------------------------------------------------------------------------------

I paste the vpython.py file here for debugging purpose.

--------------------------------------------------------------------------------------------------
from visual import *

print """
Right button drag to rotate camera to view scene.
Middle button drag up or down to zoom in or out.
"""
scene.title = "Lorenz differential equation"
scene.center = vector(25,0,0)
##scene.lights = [ ((0.25, 0.5, 1.0, 0.), (0.6,0.6,0.6)),
##                 ((-1.0, 0.25, -0.5), (0.2,0.2,0.2)) ]

lorenz = curve( color = color.black, radius=0.3 )

# Draw grid
for x in arange(0,51,10):
    curve( pos = [ (x,0,-25), (x,0,25) ], color = (0,0.5,0), radius = 0.3 )
    #box(pos=(x,0,0), axis=(0,0,50), height=0.4, width=0.4)
for z in arange(-25,26,10):
    curve( pos = [ (0,0,z), (50,0,z) ], color = (0,0.5,0), radius = 0.3 )
    #box(pos=(25,0,z), axis=(50,0,0), height=0.4, width=0.4 )

dt = 0.01
y = vector(35, -10, -7)

for t in arange(0,10,dt):
  # Integrate a funny differential equation
  dydt = vector( - 8.0/3*y[0]           + y[1]*y[2],
                              - 10*y[1] +   10*y[2],
                 -  y[1]*y[0] + 28*y[1] -      y[2] );
  y = y + dydt*dt

  # Draw lines colored by speed
  c = clip( [mag(dydt) * 0.005], 0, 1 )[0]

  lorenz.append( pos=y, red=c, blue=1-c )

  rate( 500 )
---------------------------------------------------------------------------------------------------

I don't know what could be wrong.  I appreciate any help.

thanks,

_________________________________________________________________
En etkili ve güvenilir PC Korumayi tercih edin, rahat edin! 
http://www.msn.com.tr/security/

Re: [Visualpython-users] background image

[Bruce S. <Bru...@nc...>]

Not currently.

Flavio Coelho wrote:
> Hi,
> 
> Is there a way to add an image as the background of the scene?

[Visualpython-users] background image

[Flavio C. <fcc...@gm...>]

Hi,

Is there a way to add an image as the background of the scene?
--=20
Fl=E1vio Code=E7o Coelho
---------------------------
Great spirits have always found violent opposition from mediocrities. The
latter cannot understand it when a man does not thoughtlessly submit to
hereditary prejudices but honestly and courageously uses his intelligence.
        Albert Einstein

Re: [Visualpython-users] RFS: python-visual - VPython 3D scientific visualization library

[Floris B. <fb...@so...>]

On Thu, Mar 31, 2005 at 03:31:29PM -0500, ajs...@op... wrote:
> I don't know much how the Debian world works, but wonder 
> whether you are aware of the Debain based ubuntu distribution

I am aware of Ubuntu, in fact I usually recommend it to users new to
GNU/Linux.

A quick word about Debian, as there might be quite some people here
that don't know a lot about it.  Debian has a number of Debian
Developers (DD's) who have access to the Debian machines and can
upload new packages into the archive (regulated of course) etc.  So
basically I was asking if any of them was intresed in "sponsoring"
python-visual, which means that they would upload the package that I
made into the archive.  That way python-visual (VPython really) would
get into Debian and be distributed in the next release (if all goes
well).  This sponsering is so that the quality of the package can be
checked and thus the quality of Debian can be kept good.  Once they
are convinced that I can package I could, who knows, become a DD
myself and not need a sponsor anymore.  But that's distant future (if
ever) and currently I can just hope some offical DD is intrested
enough into VPython so they want to sponsor it.

The way Ubuntu works (beware, I might be wrong here) is that they take
packages from Debian and _selected_ others.  So the best way to get a
package into ubuntu is by getting it into Debian.  It is no guarantee
that it will ever be in Ubuntu's "main" component (that would be quite
unlikely for VPython), but it should end up in their "universe"
component.

Hope this helped clarifying things... (and this explenation has become
way to lengthy)

Cheers
Floris

-- 
Debian GNU/Linux -- The power of freedom
www.debian.org | www.gnu.org | www.kernel.org

[Visualpython-users] RFS: python-visual - VPython 3D scientific visualization library

[Floris B. <fb...@so...>]

Hi

I have been packaging VPython for some time now and would like to get
it into the main Debian archive.  There has been an ITP for this way
back in September 2001 (#112118) which was retitled to RFP in December
2002 due to nothing happening with it.  According the the WNPP bug
(#112118) Debian Jr. also had interest in this package.

So here it goes:

Package: python-visual
Version: 3.1.1-2
Section: python
Description: VPython 3D scientific visualisation library
  Visual is a Python module for 3D scientific visualisation.  It offers
  real-time 3D output and is easily usable by novice programmers.
  .
  A program can create 3D objects (such as spheres, curves, etc.) and
  position them in 3D space.  Visual, running in a separate thread,
  automatically updates a 3D scene many times per second to reflect the
  current position of the objects.  The programmer does not need to deal
  with display management but can focus on the computational aspects for
  the program.  The user can navigate in the 3D scene by using the mouse
  to zoom and rotate while the program is running.  Visual supports full
  vector algebra.
  .
   Homepage: http://www.vpython.org

The packages can be found at http://www.soton.ac.uk/~fb102/Debian.
Note that these packages are build using sarge, I have packages for
sid using pbuilder but they are not online.  Let me know your
feedback, interest, questions, bugs, tips etc, they will be appreciated.


Hopefully I tempted someone to sponsor this package.

Thanks
Floris

--=20
Debian GNU/Linux -- The power of freedom
www.debian.org | www.gnu.org | www.kernel.org

[Visualpython-users] new debian package for sarge

[Floris B. <fb...@so...>]

Hi

Recently a new version of libboost got into Debian sarge (aka
testing).  So I have rebuild the python-visual package against this
new version.

As usual the packages can be found at
http://www.soton.ac.uk/~fb102/Debian/ they are the packages with
version 3.1.1-2.

Hope this makes people happy
Floris

-- 
Debian GNU/Linux -- The power of freedom
www.debian.org | www.gnu.org | www.kernel.org

Fwd: [Visualpython-users] Released: VPython 3.1.1

[Flavio C. <fcc...@gm...>]

On Thu, 2005-03-17 at 11:09 -0300, Flavio Coelho wrote:


Numarray was still a little unstable until 1.0 came out, so upgrading
numarray might be required in your case.  Can you send me the log files,
anyway?

Ok, I'll have to dig them out, I'll send them in a future message=20



In the INSTALL.txt file there is a section that lists the specific
dependencies required for RPM and APT-based systems.  Could you write up
a section that specifically covers the package names in Gentoo's Portage
that satisfy VPython's requirements?

gcc (g++ is included in this package) 3.3.5-r1
Python 2.3.4
boost 1.31.0
gtk+ 2.6.2
gtkglarea 1.99.0
numeric 23.1


Fl=E1vio