visualpython-users

Re: [Visualpython-users] gtkmm on Mac

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

And I should have reported that on Windows in 
c:\MinGW\lib\pkgconfig\gdk-win32-2.0.pc I see this:

prefix=/target
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include
target=win32

Name: GDK
Description: GIMP Drawing Kit (${target} target)
Version: 2.10.11
Requires: gdk-pixbuf-2.0 pangowin32 pangocairo
Libs: -L${libdir} -lgdk-${target}-2.0  -lgdi32 -user32 -limm32 -lshell32 
-lole32 -Wl,-luuid
Cflags: -I${includedir}/gtk-2.0 -I${libdir}/gtk-2.0/include

Bruce Sherwood

Bruce Sherwood wrote:
> For what it's worth (probably not much), on Windows in 
> c:\MinGW\lib\pkgconfig\gdkmm-2.4.pc I see the following:
> 
> prefix=/target
> exec_prefix=${prefix}
> libdir=${exec_prefix}/lib
> includedir=${prefix}/include
> 
> Name: gdkmm
> Description: C++ wrappers for GLib, GTK+, and Pango
> Requires: glibmm-2.4 pangomm-1.4 gdk-2.0 cairomm-1.0
> Version: 2.10.11
> Libs: -L${libdir} -lgdkmm-2.4
> Cflags: -I${includedir}/gdkmm-2.4 -I${libdir}/gdkmm-2.4/include
> 
> Note that it says nothing about an uninstaller.
> 
> Bruce
> 
> Steve Spicklemire wrote:
>> Thanks Bruce,
>>
>> I finally got cairomm to build (pulling the latest code from their svn 
>> repository).
>>
>> I'm stuck now on a gdk error:
>>
>> checking for GDKMM... configure: error: Package requirements (glibmm-2.4 
>>  >= 2.14.0 cairomm-1.0 >= 1.1.12 gtk+-2.0 >= 2.12.0) were not met:
>>
>> Package gdk-quartz-2.0-uninstalled was not found in the pkg-config 
>> search path.
>> Perhaps you should add the directory containing 
>> `gdk-quartz-2.0-uninstalled.pc'
>> to the PKG_CONFIG_PATH environment variable
>> Package 'gdk-quartz-2.0-uninstalled', required by 'GTK+ Uninstalled', 
>> not found
>>
>> Consider adjusting the PKG_CONFIG_PATH environment variable if you
>> installed software in a non-standard prefix.
>>
>>
>> Anybody seen that one?
>>
>> -steve
>>
>> On Nov 4, 2007, at 8:52 AM, Bruce Sherwood wrote:
>>
>>> I noticed a recent report about a problem with compiling gtkmm on Mac 
>>> OSX 10.4, which might be of interest to Steve Spicklemire and others:
>>>
>>> http://bugzilla.gnome.org/show_bug.cgi?id=493057
>>>
>>> Bruce Sherwood
>>>
> 
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Re: [Visualpython-users] gtkmm on Mac

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

Here's what I found on Ubuntu Linux in /usr/lib/pkgconfig/gdkmm-2.4.pc:

prefix=/usr
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: gdkmm
Description: C++ wrappers for GLib, GTK+, and Pango
Requires: glibmm-2.4 pangomm-1.4 gdk-2.0 cairomm-1.0
Version: 2.10.8
Libs: -L${libdir} -lgdkmm-2.4
Cflags: -I${includedir}/gdkmm-2.4 -I${libdir}/gdkmm-2.4/include

And in /usr/lib/pkgconfig/gdk-2.0.pc on Ubuntu Linux:

prefix=/usr
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include
target=x11

Name: GDK
Description: GIMP Drawing Kit (${target} target)
Version: 2.10.11
Requires: gdk-pixbuf-2.0 pango pangocairo fontconfig x11 xext xrender 
xinerama xi xrandr xcursor xfixes
Libs: -L${libdir} -lgdk-${target}-2.0
Cflags: -I${includedir}/gtk-2.0 -I${libdir}/gtk-2.0/include

Bruce Sherwood

Steve Spicklemire wrote:
> Thanks Bruce,
>
> I finally got cairomm to build (pulling the latest code from their svn 
> repository).
>
> I'm stuck now on a gdk error:
>
> checking for GDKMM... configure: error: Package requirements 
> (glibmm-2.4 >= 2.14.0 cairomm-1.0 >= 1.1.12 gtk+-2.0 >= 2.12.0) were 
> not met:
>
> Package gdk-quartz-2.0-uninstalled was not found in the pkg-config 
> search path.
> Perhaps you should add the directory containing 
> `gdk-quartz-2.0-uninstalled.pc'
> to the PKG_CONFIG_PATH environment variable
> Package 'gdk-quartz-2.0-uninstalled', required by 'GTK+ Uninstalled', 
> not found
>
> Consider adjusting the PKG_CONFIG_PATH environment variable if you
> installed software in a non-standard prefix.
>
>
> Anybody seen that one?
>
> -steve
>
> On Nov 4, 2007, at 8:52 AM, Bruce Sherwood wrote:
>
>> I noticed a recent report about a problem with compiling gtkmm on Mac 
>> OSX 10.4, which might be of interest to Steve Spicklemire and others:
>>
>> http://bugzilla.gnome.org/show_bug.cgi?id=493057
>>
>> Bruce Sherwood
>>
>

Re: [Visualpython-users] gtkmm on Mac

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

For what it's worth (probably not much), on Windows in 
c:\MinGW\lib\pkgconfig\gdkmm-2.4.pc I see the following:

prefix=/target
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: gdkmm
Description: C++ wrappers for GLib, GTK+, and Pango
Requires: glibmm-2.4 pangomm-1.4 gdk-2.0 cairomm-1.0
Version: 2.10.11
Libs: -L${libdir} -lgdkmm-2.4
Cflags: -I${includedir}/gdkmm-2.4 -I${libdir}/gdkmm-2.4/include

Note that it says nothing about an uninstaller.

Bruce

Steve Spicklemire wrote:
> Thanks Bruce,
> 
> I finally got cairomm to build (pulling the latest code from their svn 
> repository).
> 
> I'm stuck now on a gdk error:
> 
> checking for GDKMM... configure: error: Package requirements (glibmm-2.4 
>  >= 2.14.0 cairomm-1.0 >= 1.1.12 gtk+-2.0 >= 2.12.0) were not met:
> 
> Package gdk-quartz-2.0-uninstalled was not found in the pkg-config 
> search path.
> Perhaps you should add the directory containing 
> `gdk-quartz-2.0-uninstalled.pc'
> to the PKG_CONFIG_PATH environment variable
> Package 'gdk-quartz-2.0-uninstalled', required by 'GTK+ Uninstalled', 
> not found
> 
> Consider adjusting the PKG_CONFIG_PATH environment variable if you
> installed software in a non-standard prefix.
> 
> 
> Anybody seen that one?
> 
> -steve
> 
> On Nov 4, 2007, at 8:52 AM, Bruce Sherwood wrote:
> 
>> I noticed a recent report about a problem with compiling gtkmm on Mac 
>> OSX 10.4, which might be of interest to Steve Spicklemire and others:
>>
>> http://bugzilla.gnome.org/show_bug.cgi?id=493057
>>
>> Bruce Sherwood
>>
> 

Re: [Visualpython-users] gtkmm on Mac

[Steve S. <st...@sp...>]

Thanks Bruce,

I finally got cairomm to build (pulling the latest code from their  
svn repository).

I'm stuck now on a gdk error:

checking for GDKMM... configure: error: Package requirements  
(glibmm-2.4 >= 2.14.0 cairomm-1.0 >= 1.1.12 gtk+-2.0 >= 2.12.0) were  
not met:

Package gdk-quartz-2.0-uninstalled was not found in the pkg-config  
search path.
Perhaps you should add the directory containing `gdk-quartz-2.0- 
uninstalled.pc'
to the PKG_CONFIG_PATH environment variable
Package 'gdk-quartz-2.0-uninstalled', required by 'GTK+ Uninstalled',  
not found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.


Anybody seen that one?

-steve

On Nov 4, 2007, at 8:52 AM, Bruce Sherwood wrote:

> I noticed a recent report about a problem with compiling gtkmm on  
> Mac OSX 10.4, which might be of interest to Steve Spicklemire and  
> others:
>
> http://bugzilla.gnome.org/show_bug.cgi?id=493057
>
> Bruce Sherwood
>

[Visualpython-users] gtkmm on Mac

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

I noticed a recent report about a problem with compiling gtkmm on Mac 
OSX 10.4, which might be of interest to Steve Spicklemire and others:

http://bugzilla.gnome.org/show_bug.cgi?id=493057

Bruce Sherwood

[Visualpython-users] Of no use whatsoever...

[chris l. <chr...@sp...>]

It was on a Monday morning I wished to draw a ball
I write my code in Python so I googled one and all,
My PC is a windows one, so I'm really not sure why,
A Window opened promptly saying  'Anything you want to buy?'

Oh it all fills time whilst I should be writing code.

It was on the Tuesday morning I went  to buy a Mac
I'd stuck the PC up on E-bay cos they wouldn't take it back
It all looked very lovely and the screen was very bright
I tried to log into my bank but it wouldn't load the site.

Oh it all fills time whilst I should be writing code.

It was on the Wednesday morning the PC hadn't sold
I gave the wife the Macintosh; It suits her new commode
I got the PC out again and loaded linux on
Eventually it started up;  the Wireless driver's wrong...

Oh it all fills time whilst I should be writing code.

Twas on the Thursday morning I finally got that right
I downloaded visual python, after working through the night.
I opened what I'd downloaded, a file called a tarball
how was I supposed to know you need to su to make install ?

Oh it all fills time whilst I should be writing code.

It was on the Friday morning I 'd done all that it said
I'd build the build directory, I'd  had to edit make with ed
I looked for all the libraries it said I need to code
It wanted glibmm and the CD wouldn't load...

On Saturday and Sunday I go shopping at the mall
So twas on the Monday morning I still wished to draw a ball....


with apologies to Flanders and Swann, and the The gas man Cometh...

[Visualpython-users] VPython on Mac 4

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

Hi Bruce,

Well.. all was going well, 'til I got to the "cairomm" package.

I'm getting a "'QuartzSurface' was not declared in this scope" error.

I'll try to track it down.

-steve

192-168-40-171:~/Source/gnome/cairomm-1.4.4 steve$ make
Making all in cairomm
make  all-recursive
if /bin/sh ../libtool --tag=CXX --mode=compile g++ -DHAVE_CONFIG_H -I. 
-I. -I. -I.. -I/opt/gtk/include/cairo -I/opt/gtk/include/libpng12 
-g -O2 -MT context.lo -MD -MP -MF ".deps/context.Tpo" -c -o context.lo 
context.cc; \
then mv -f ".deps/context.Tpo" ".deps/context.Plo"; else rm -f 
".deps/context.Tpo"; exit 1; fi
mkdir .libs
  g++ -DHAVE_CONFIG_H -I. -I. -I. -I.. -I/opt/gtk/include/cairo 
-I/opt/gtk/include/libpng12 -g -O2 -MT context.lo -MD -MP -MF 
.deps/context.Tpo -c context.cc  -fno-common -DPIC -o .libs/context.o
context.cc: In function 'Cairo::RefPtr<Cairo::Surface> 
Cairo::get_surface_wrapper(cairo_surface_t*)':
context.cc:686: error: 'QuartzSurface' was not declared in this scope
context.cc:686: error: template argument 1 is invalid
context.cc:686: error: expected type-specifier before 'QuartzSurface'
context.cc:686: error: expected `)' before 'QuartzSurface'
make[3]: *** [context.lo] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all] Error 2
make: *** [all-recursive] Error 1


On Nov 2, 2007, at 10:36 AM, Steve Spicklemire wrote:

 > Hi Bruce,
 >
 > That's what I started last night. Actually I think it might just 
work. The trouble is I'm having to peel the onion of dependencies.
 >
 > I built gtk2 on the first go... yeah!
 >
 > I tried to build gtkmm. It apparently needs glibmm.
 > I download and attempt to build glibmm. It apparently needs 
libsigc++-2.0!
 > I download and build libsigc++-2.0.
 > I try again with glibmm. It needs pkg-config.
 > I download and build pkg-config.
 > I try again with glibmm... it's still building at this moment.
 >
 > If I can get the thing to come together.. I'll let you know!
 >
 > -steve
 >
 > On Nov 2, 2007, at 9:39 AM, Bruce Sherwood wrote:
 >
 >> I don't know enough about this, but I wonder whether the following 
would work: Install the experimental gtk2 on a Mac, the gtk2 that talks 
to Quartz rather than to X11. Then compile (from source) gtkmm on that 
same Mac. Since gtkmm is a wrapper of gtk, maybe this would give us a 
gtkmm environment that would talk to Quartz.
 >>
 >> Bruce
 >>
 >

[Visualpython-users] VPython on Mac 3

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

Hi Bruce,

That's what I started last night. Actually I think it might just work. 
The trouble is I'm having to peel the onion of dependencies.

I built gtk2 on the first go... yeah!

I tried to build gtkmm. It apparently needs glibmm.
I download and attempt to build glibmm. It apparently needs libsigc++-2.0!
I download and build libsigc++-2.0.
I try again with glibmm. It needs pkg-config.
I download and build pkg-config.
I try again with glibmm... it's still building at this moment.

If I can get the thing to come together.. I'll let you know!

-steve

On Nov 2, 2007, at 9:39 AM, Bruce Sherwood wrote:

 > I don't know enough about this, but I wonder whether the following 
would work: Install the experimental gtk2 on a Mac, the gtk2 that talks 
to Quartz rather than to X11. Then compile (from source) gtkmm on that 
same Mac. Since gtkmm is a wrapper of gtk, maybe this would give us a 
gtkmm environment that would talk to Quartz.
 >
 > Bruce
 >

[Visualpython-users] VPython on Mac 2

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

I now realize I've overstated the case, as what seems to semi-exist is 
only gtk+ (gtk2) for native Mac windowing. I don't find gtkmm to wrap 
this gtk2, alas, which matters, because since Visual is written in C++, 
Visual is based on gtkmm, not directly on gtk2.

Here are links and discussions about gtk+ on the Mac:

http://developer.imendio.com/projects/gtk-macosx/

http://www.macdevcenter.com/pub/a/mac/2007/06/22/graphical-tool-kits-for-apples-os-x-gtk2.html?page=1

http://developer.imendio.com/files/developer/Porting-Gtk-MacOSX.pdf

Would it be all right and make sense to move this conversation to the 
VPython mailing list? For all I know we're missing some other interested 
parties by having this private conversation. If I hear no objection, 
I'll copy or summarize the notes so far in that mailing list.

Bruce

Steve Spicklemire wrote:
 > Hi Bruce,
 >
 > On Oct 31, 2007, at 9:16 PM, Bruce Sherwood wrote:
 >
 >> There are now new gtk2/gtkmm packages for the Mac, which talk to 
Aqua instead of to X11. Unfortunately, they are currently labeled 
BEWARE! HERE BE DRAGONS! But one could try. It would be excellent if 
most of Visual were platform-dependent, with only a few odd-ball files 
specific to Windows and Mac. (For example, even in Brandmeyer's original 
beta version, there were a few Windows-specific files for getting the 
time, etc.)
 >
 > Can you point me to these? I snooped around a bit a few weeks ago and 
didn't find anything. I do a lot of Cocoa/Aqua development with the 
PyObjc bridge (http://pyobjc.sourceforge.net/) which makes it trivial to 
open windows and talk to OpenGL. If we can get the gtk2 stuff working 
with Aqua.. I think the rest would be (fairly) easy! It's pretty easy to 
build native installer packages using Iceberg 
(http://s.sudre.free.fr/Software/Iceberg.html).
 >
 > thanks,
 > -steve

[Visualpython-users] VPython on Mac 1

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

What started as a private conversation grew into a significant 
discussion with several people about making an native-mode version of 
VPython for the Macintosh, one that wouldn't require installing X11 and 
fink. This discussion is likely to be of general interest, so with 
permission of the others (or at least no objections!) I'm posting the 
notes here.

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

VPython on the Mac is an increasingly burning issue, and I'm delighted 
to hear of your interest.

I'm seeing a growing use of Macs in physics departments, and great 
frustration with trying to install VPython on them, despite Martin 
Costabel's yeoman efforts with his packaging of Visual for fink. Usually 
the installation works quickly and easily, but only too often it fails 
at one of the many links in the long chain along the way: install X11, 
install Xcode, install fink, look for visual-24 and it's not there for 
some reason, try reinstalling everything....it can be a nightmare, and 
the people trying to do this often don't have high software skills.

Moreover, every time Apple updates the operating system, even in the 
last significant figure, something in this chain is liable to break. And 
although Martin has made a stab at it, I believe it's the case that he 
has not yet successfully compiled and run the beta version on a Mac.

Many of the users I've interacted with have no interest in the Unix side 
of OSX and really don't want to install X11/Xcode/fink just to get 
VPython. It would be WONDERFUL to have a native-mode installer with no 
dependence on X11.

I see two plausible approaches:

1) Currently the Visual C++ code is mostly platform-independent, with a 
small number of Microsoft Windows-specific files to create a window, 
hand that window to OpenGL, and handle mouse and keyboard events. 
Someone with Mac expertise might be able to write comparable Mac code 
rather quickly.

2) Jonathan Brandmeyer originally tried in the beta version of Visual to 
cover both Linux and Microsoft Windows with very little MS 
Windows-specific code. He gave up on that because at the time it was 
extremely difficult to install the gtk2 and gtkmm files on Windows 
(gtkmm is a "wrapper" that lets C++ code get at the C-based gtk2 GUI 
machinery). So he wrote additional Windows-specific code.

There has been a change, in that I recently was able very easily to 
install gtk2 and gtkmm on my Windows machine and compile and run small 
sample gtkmm tutorials that make windows and buttons etc. I'm currently 
learning more about this environment in the hopes of reducing the amount 
of Windows-specific code in Visual and in the hopes that this might as a 
side effect cure some of the severe bugs in the beta version for 
Windows. I won't be able to devote the concentrated attention this work 
requires until next summer, but I'll keep poking at it in the interim.

There are now new gtk2/gtkmm packages for the Mac, which talk to Aqua 
instead of to X11. Unfortunately, they are currently labeled BEWARE! 
HERE BE DRAGONS! But one could try. It would be excellent if most of 
Visual were platform-dependent, with only a few odd-ball files specific 
to Windows and Mac. (For example, even in Brandmeyer's original beta 
version, there were a few Windows-specific files for getting the time, etc.)

Bruce Sherwood

David Derbes wrote:
 > Hi, Christopher.
 >
 > This is David Derbes, a high school physics teacher.
 >
 > About a billion years ago I used to write biggish (3.5 to 5K lines) 
programs in Think Pascal as part of my job. As you probably know Think 
went away and I never got involved with XCode although from time to time 
I think about it. I've got other fish to fry these days.
 >
 > However, I am quite interested in using Visual Python as a teaching 
tool. Unfortunately there is at present no native Cocoa version.
 >
 > Do you know if anyone is working on this? I think Bruce Sherwood 
(bas...@un...) may be, and also Dethe Elza 
(de...@bl...); I've corresponded briefly with Dethe (and am 
cc'ing him and Bruce); it may be that Leopard offers a better framework 
for porting the visual parts of VPython.
 >
 > Best wishes,
 > David Derbes
 >

[Visualpython-users] Owtap

[chris l. <chr...@sp...>]

How does one install owtap?

I've downloaded the tcl file owtap-1.36.tcl  But the man pages describe 
running it as owtap. How is this done?

I've tried tclsh owtap-1.36.tcl
and get:

invalid command name "wm"
    while executing
"wm title . "OWSERVER protocol tap ($tap) to owserver ($server)""
    (procedure "MainTitle" line 2)
    invoked from within
"MainTitle $IPAddress(tap.ip):$IPAddress(tap.port) 
$IPAddress(server.ip):$IPAddress(server.port)"
    (procedure "ArgumentProcess" line 17)
    invoked from within
"ArgumentProcess $argv"
    (procedure "Main" line 2)
    invoked from within
"Main $argv"
    (file "owtap-1.36.tcl" line 1301)
 

Re: [Visualpython-users] Simple Problem with label ...

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

Works fine for me on Windows. What operating system are you using? What 
version of Python? If you execute "print visual.version", what do you see?

Bruce Sherwood

sccs cscs wrote:
> Hello,
> I have a strange behaviour of the 'label' visaul class:
> if i draw a label that is linked to a form, i shall draw it 2 times 
> until it is displayed correctly: The label is not on the sphere the 
> first time, and i shall wait (sleep(1)) before redrawing the label. Then 
> the label is correctly drawn.
> 
> import visual
> from time import sleep
> 
> def draw_label():
>     visual.label (frame = form,
>                 pos   = (0, 0, 0),
>                 text  = "(%.2f, %.2f,%.2f)"%(x0, y0, z0),
>                 opacity  = 0,
>                 box      = 0,
>                 color    = visual.color.red)
> x0 = 2
> y0 = 2
> z0 = 10
> visual.sphere (radius = 2, pos = (0, 0, 0),  color = visual.color.yellow)
> form = visual.frame(name ="Guide")
> form.pos = (x0, y0, z0)
> visual.sphere (frame = form, radius = 1, pos = (0, 0, 0))
> draw_label()
> sleep(1)
> print "redraw!"
> draw_label()
> 
> Thank you for your help.
> Zorgi
> 
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[Visualpython-users] Simple Problem with label ...

[sccs c. <zo...@ya...>]

Hello,
I have a strange behaviour of the 'label' visaul class:
if i draw a label that is linked to a form, i shall draw it 2 times until it is displayed correctly: The label is not on the sphere the first time, and i shall wait (sleep(1)) before redrawing the label. Then the label is correctly drawn.

import visual
from time import sleep

def draw_label():
    visual.label (frame = form,
                pos   = (0, 0, 0),
                text  = "(%.2f, %.2f,%.2f)"%(x0, y0, z0), 
                opacity  = 0, 
                box      = 0,
                color    = visual.color.red)
x0 = 2
y0 = 2
z0 = 10
visual.sphere (radius = 2, pos = (0, 0, 0),  color = visual.color.yellow)
form = visual.frame(name ="Guide")
form.pos = (x0, y0, z0)
visual.sphere (frame = form, radius = 1, pos = (0, 0, 0))
draw_label()
sleep(1)
print "redraw!"
draw_label()

Thank you for your help.
Zorgi

             
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Re: [Visualpython-users] Numeric/Numpy

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

That's very good news, Gary, that you might work on this.

Bruce Sherwood

Gary Pajer wrote:
> I've been thinking about translating the regular (non-beta) release to
> numpy.  It wouldn't have the new features, but it would sever the ties
> to numeric.  I wouldn't get to it before January  (if then, as my
> tenure case is coming up ...)
> 
> In the meantime, I've never used py2exe, so I may be way off base
> here, but is the problem namespace polution?  If so, Bruce might have
> luck with the likes of
> 
> import visual as v
> import numeric as nu
> import numpy as n
> import scipy as s
> etc.
> 
> Calls to visual structures should go to Numeric ( v.sphere(), for
> example) and calls to scipy should go to numpy ( s.linspace()  for
> example).  I think.   :)
> 
> just a thought.
> 
> -gary
> 
>
>>
>> On 10/21/07, Bruce Sherwood <Bru...@nc...> wrote:
>>> This is indeed awkward, but it won't get fixed very soon.
>>>
>>> On the one hand, as has been documented and you experienced, the beta
>>> version is buggy on Windows. I'm gearing up to work on this myself, but
>>> I have no prediction of when we will see improvement.
>>>
>>> On the other hand, the production version depends on numeric (and
>>> includes it), and there is no one available to my knowledge who can do
>>> the work to replace numeric with numpy in that version. The conversion
>>> from numeric to numpy in the beta version was done by Arthur Siegel last
>>> winter, just before he unexpectedly died.
>>>
>>> Scipy is more than numpy; numpy is the foundation for other components
>>> of scipy.
>>>
>>> Bruce Sherwood
>>>
>>> Bruce Peterson wrote:
>>>> I'm trying to make a distributable app with python 2.5, vpython, and
>>>> scipy for Windows XP. My understanding is that vpython uses the
>>>> numeric library while scipy uses (or is the same as ?) the numpy
>>>> library. This seems to cause a conflict in the namespace when I use
>>>> py2exe to make a distributable. Py2exe complains about most all
>>>> numpy/numeric modules not being found.
>>>>
>>>>
>>>> I noticed in beta 16 that the beta uses numpy rather than numeric.
>>>> However beta 16 crashes my Win XP OS -- I need to do a power cycle to
>>>> unfreeze it after using beta 16 with vpython demos. So switching to
>>>> beta 16 is out. Are there any plans on separate track for the next
>>>> version of vpython to only include numpy rather than numeric and
>>>> leave the other beta 16 features to be resolved later?
>>>>
>>>> Bruce Peterson
>>>> 425 466 7344
>>>>
>>>>
>>>> -------------------------------------------------------------------------
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>>>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
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> 
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Re: [Visualpython-users] Numeric/Numpy

[Gary P. <gar...@gm...>]

I've been thinking about translating the regular (non-beta) release to
numpy.  It wouldn't have the new features, but it would sever the ties
to numeric.  I wouldn't get to it before January  (if then, as my
tenure case is coming up ...)

In the meantime, I've never used py2exe, so I may be way off base
here, but is the problem namespace polution?  If so, Bruce might have
luck with the likes of

import visual as v
import numeric as nu
import numpy as n
import scipy as s
etc.

Calls to visual structures should go to Numeric ( v.sphere(), for
example) and calls to scipy should go to numpy ( s.linspace()  for
example).  I think.   :)

just a thought.

-gary

On 10/21/07, Gary Pajer <gar...@gm...> wrote:
> I've been thinking about translating the regular (non-beta) release to
> numpy.  It wouldn't have the new features, but it would sever the ties
> to numeric.  I wouldn't get to it before January  (if then as my
> tenure case is coming up ...)
>
> In the meantime, I've never used py2exe, so I may be way off base
> here, but is the problem namespace polution?  If so, Bruce might have
> luck with the likes of
>
> import visual as v
> import numeric as nu
> import numpy as n
> import scipy as s
> etc.
>
> Calls to visual structures should go to Numeric ( v.sphere(), for
> example) and calls to scipy should go to numpy ( s.linspace()  for
> example).  I think.   :)
>
> just a thought.
>
> -gary
>
> On 10/21/07, Bruce Sherwood <Bru...@nc...> wrote:
> > This is indeed awkward, but it won't get fixed very soon.
> >
> > On the one hand, as has been documented and you experienced, the beta
> > version is buggy on Windows. I'm gearing up to work on this myself, but
> > I have no prediction of when we will see improvement.
> >
> > On the other hand, the production version depends on numeric (and
> > includes it), and there is no one available to my knowledge who can do
> > the work to replace numeric with numpy in that version. The conversion
> > from numeric to numpy in the beta version was done by Arthur Siegel last
> > winter, just before he unexpectedly died.
> >
> > Scipy is more than numpy; numpy is the foundation for other components
> > of scipy.
> >
> > Bruce Sherwood
> >
> > Bruce Peterson wrote:
> > > I'm trying to make a distributable app with python 2.5, vpython, and
> > > scipy for Windows XP. My understanding is that vpython uses the
> > > numeric library while scipy uses (or is the same as ?) the numpy
> > > library. This seems to cause a conflict in the namespace when I use
> > > py2exe to make a distributable. Py2exe complains about most all
> > > numpy/numeric modules not being found.
> > >
> > >
> > > I noticed in beta 16 that the beta uses numpy rather than numeric.
> > > However beta 16 crashes my Win XP OS -- I need to do a power cycle to
> > > unfreeze it after using beta 16 with vpython demos. So switching to
> > > beta 16 is out. Are there any plans on separate track for the next
> > > version of vpython to only include numpy rather than numeric and
> > > leave the other beta 16 features to be resolved later?
> > >
> > > Bruce Peterson
> > > 425 466 7344
> > >
> > >
> > > -------------------------------------------------------------------------
> > > This SF.net email is sponsored by: Splunk Inc.
> > > Still grepping through log files to find problems?  Stop.
> > > Now Search log events and configuration files using AJAX and a browser.
> > > Download your FREE copy of Splunk now >> http://get.splunk.com/
> > > _______________________________________________
> > > Visualpython-users mailing list
> > > Vis...@li...
> > > https://lists.sourceforge.net/lists/listinfo/visualpython-users
> >
> > -------------------------------------------------------------------------
> > This SF.net email is sponsored by: Splunk Inc.
> > Still grepping through log files to find problems?  Stop.
> > Now Search log events and configuration files using AJAX and a browser.
> > Download your FREE copy of Splunk now >> http://get.splunk.com/
> > _______________________________________________
> > Visualpython-users mailing list
> > Vis...@li...
> > https://lists.sourceforge.net/lists/listinfo/visualpython-users
> >
>

Re: [Visualpython-users] Numeric/Numpy

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

This is indeed awkward, but it won't get fixed very soon.

On the one hand, as has been documented and you experienced, the beta 
version is buggy on Windows. I'm gearing up to work on this myself, but 
I have no prediction of when we will see improvement.

On the other hand, the production version depends on numeric (and 
includes it), and there is no one available to my knowledge who can do 
the work to replace numeric with numpy in that version. The conversion 
from numeric to numpy in the beta version was done by Arthur Siegel last 
winter, just before he unexpectedly died.

Scipy is more than numpy; numpy is the foundation for other components 
of scipy.

Bruce Sherwood

Bruce Peterson wrote:
> I'm trying to make a distributable app with python 2.5, vpython, and
> scipy for Windows XP. My understanding is that vpython uses the
> numeric library while scipy uses (or is the same as ?) the numpy
> library. This seems to cause a conflict in the namespace when I use
> py2exe to make a distributable. Py2exe complains about most all
> numpy/numeric modules not being found.
> 
> 
> I noticed in beta 16 that the beta uses numpy rather than numeric.
> However beta 16 crashes my Win XP OS -- I need to do a power cycle to
> unfreeze it after using beta 16 with vpython demos. So switching to
> beta 16 is out. Are there any plans on separate track for the next
> version of vpython to only include numpy rather than numeric and
> leave the other beta 16 features to be resolved later?
> 
> Bruce Peterson
> 425 466 7344 
> 
> 
> -------------------------------------------------------------------------
> This SF.net email is sponsored by: Splunk Inc.
> Still grepping through log files to find problems?  Stop.
> Now Search log events and configuration files using AJAX and a browser.
> Download your FREE copy of Splunk now >> http://get.splunk.com/
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users

[Visualpython-users] Numeric/Numpy

[Bruce P. <bap...@te...>]

I'm trying to make a distributable app with python 2.5, vpython, and
scipy for Windows XP. My understanding is that vpython uses the
numeric library while scipy uses (or is the same as ?) the numpy
library. This seems to cause a conflict in the namespace when I use
py2exe to make a distributable. Py2exe complains about most all
numpy/numeric modules not being found.


I noticed in beta 16 that the beta uses numpy rather than numeric.
However beta 16 crashes my Win XP OS -- I need to do a power cycle to
unfreeze it after using beta 16 with vpython demos. So switching to
beta 16 is out. Are there any plans on separate track for the next
version of vpython to only include numpy rather than numeric and
leave the other beta 16 features to be resolved later?

Bruce Peterson
425 466 7344 

[Visualpython-users] Vpython Design

[bradley <bj...@nc...>]

I have recently put a lot of work into vpython design, and gotten a much 
program.  Please go try it out.  It should work for windows users but I 
can't confirm this.  If school work doesn't keep me so busy hopefully I 
can have the beta version out within a month.  
http://www.bradlongo.com/VPD/vpd.html

Brad

Re: [Visualpython-users] Rotating a helix about its axis.

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

Thanks for pointing out this bug. Here are two work-arounds:

1) Put the helix in a frame, and rotate the frame object.

2) Rotate the axis of the helix:

	h = helix()
	h.axis = rotate(h.axis, angle=pi/2., axis=(0,0,1))

Bruce Sherwood

Kelvin Chu wrote:
> Hello;
> 
> I'd like to do a little animation of a bacterial flagella, and 
> consequently I'd like to rotate a helix about its axis.  It appears that 
> the helix object does not support rotations.
> 
> Is there a clever way (or I guess, a brute-force way?) of getting around 
> this problem?
> 
> Thanks very much.
> 
> -k
> 
> 
> --
> Department of Physics, Cook Building, University of Vermont
> 82 University Place, Burlington VT 05405-0125
> http://www.uvm.edu/~kchu/; (802) 656-0064; Fax: (802) 656-0817

[Visualpython-users] Rotating a helix about its axis.

[Kelvin C. <kel...@uv...>]

Hello;

I'd like to do a little animation of a bacterial flagella, and  
consequently I'd like to rotate a helix about its axis.  It appears  
that the helix object does not support rotations.

Is there a clever way (or I guess, a brute-force way?) of getting  
around this problem?

Thanks very much.

-k


--
Department of Physics, Cook Building, University of Vermont
82 University Place, Burlington VT 05405-0125
http://www.uvm.edu/~kchu/; (802) 656-0064; Fax: (802) 656-0817

[Visualpython-users] trasparent faces and convex objects

[Giampaolo C. <jp...@in...>]

Recently I've tried VPython 4 beta 16 for drawing trasparent surfaces.

But I've noticed that faces and convex objects don't have opacity
effect: is it true or I'm not using correctly this objects?

Excuse me if my English is bad.

Giampaolo Cuoghi

ITIS "A. Volta" Sassuolo (MO) Italy
Physics Department, University of Modena, Italy

[Visualpython-users] Mac install instructions

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

Danny Caballero has created more detailed installation instructions for 
the Mac, now available on the Mac download page at vpython.org. Thanks, 
Danny!

Bruce Sherwood

[Visualpython-users] Vpython Idle for linux

[bradley <bj...@nc...>]

Here is a link to the idle I have been working on for linux.  It is 
still in the alpha phase but it is stable.  Go to the site below for 
more details.  There is a recent version of it for anyone to try out.  
It should work on any linux computer, but you need the beta version of 
vpython.  You can use the rpms I have to get it to make things easier. 
http://www.bradlongo.com/VPD/design.html

Brad

[Visualpython-users] Vpython

[bradley <bj...@nc...>]

I have moved my site from www4.ncsu.edu/~bjlongo to www.bradlongo.com.  
All my fedora packages are going to be there now.  Be sure to check 
there for the new idle I am developing.  I will have an alpha release 
soon so that I can get some feedback.

Brad

Re: [Visualpython-users] Lost zoom ability

[Gary P. <gar...@gm...>]

On 9/10/07, Gary Pajer <gar...@gm...> wrote:
> Out of the blue, I can't zoom anymore.  I can "rotate", but not zoom.
>
> Has anyone run across this before?
>
> (WinXP, latest non-beta version of Vpython)
>
> -gary
>

Out of the blue, it's fixed.
I must have had a senior moment of some kind.

-g