visualpython-users

Re: [Visualpython-users] VPython 5.13 not working on OS X 10.6

[Mirko B. <mir...@ie...>]

Hi there,

vpython is still not working on my machine, neither with the suggested
python 2.6.2 nor with the macports-provided 2.6.4 (I made it import
correctly visual by recompiling the boost libraries with a patch from svn).
It simply starts the python launcher, but a right-click reveals that it is
"not responding", and in fact no graphics/extra window is created. I am
pretty sure there's something wrong in my 10.6 install, but it'd be nice to
know what without having to wipe out everything and reinstall the OS from
scratch. Using the trace module to get an insight, the problem is triggered
after the execution of line 69 in primitives.py,
self.__display.add_renderable(self)

could that be an openGL problem? I have a macbook pro with the latest
updates from apple installed

thanks for your attention

Mirko

On Fri, Dec 11, 2009 at 11:36 PM, Bruce Sherwood <Bru...@nc...>wrote:

> It sounds like your problem could that you're trying to use the Python that
> comes with the Mac. See the Mac download page at vpython.org, and the
> important
> warnings in red.
>
> Bruce Sherwood
>
> Mirko Bordignon wrote:
> > Hi,
> >
> > as soon as I instantiate a box or any other visual element (or,
> > similarly, if I try to run an example) no window opens and the python
> > interpreter simply hangs; I am using the supplied Python 2.6.2 on a
> > machine with Snow Leopard.
> >
> > Thanks for your attention,
> > Mirko
>
>
> ------------------------------------------------------------------------------
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>

[Visualpython-users] Compiling VPython on Mac

[K.-Michael A. <mic...@sp...>]

Dear all, 
as it was written here, that the upgrade to boost-1.41 renders VPython compatible with Python2.6.4, I thought I give the compilation of VPython a first try.

1st question: 
Do I only need vpython-core2 from the cvs files? I can't find anywhere a hint on that.

2nd question: 
I managed to compile boost-1.41 successfully with the command line given in MAC-OSX.txt in vpython-core2.
I then copied boost_1_41_0/boost to vpython-core2/dependencies/boost_files (a folder i created there following the instruction of MAC-OSX.txt).
Next I copied all created libs in boost-1.41/stage/lib into vpython-core2/dependencies/boost_files/mac_libs
Is that all I need to have there before starting next step?

3rd question:
Having executed 
'sudo make setup' in src/mac resulted in access rights failure when executing the next step 'make install' in the ../mbuild directory. So I compiled with 'sudo make install'. Is that okay?

4th question:
The compilation went along awhile but then stopped with the following error:

/usr/bin/g++ -fPIC -MMD -DNDEBUG -mmacosx-version-min=10.4 -arch i386 -DPIC -O2 -g -finline-functions -I../vpython-core2/include/mac -I../vpython-core2/include -I/Library/Frameworks/Python.framework/Versions/2.6/include/python2.6 -I/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/numpy/core/include -I../vpython-core2//dependencies/boost_files -I../vpython-core2//dependencies/threadpool/include -F/System/Library/Frameworks/AGL.framework -F/System/Library/Frameworks/Carbon.framework -F/System/Library/Frameworks/OpenGL.framework   -c -o render_manager.o ../vpython-core2//src/core/util/render_manager.cpp
In file included from ../vpython-core2//dependencies/boost_files/boost/exception_ptr.hpp:15,
                 from ../vpython-core2//dependencies/boost_files/boost/thread/future.hpp:12,
                 from ../vpython-core2//dependencies/boost_files/boost/thread.hpp:24,
                 from ../vpython-core2//dependencies/threadpool/include/threadpool/detail/worker_thread.hpp:24,
                 from ../vpython-core2//dependencies/threadpool/include/threadpool/detail/pool_core.hpp:29,
                 from ../vpython-core2//dependencies/threadpool/include/threadpool/pool.hpp:27,
                 from ../vpython-core2//dependencies/threadpool/include/threadpool.hpp:21,
                 from ../vpython-core2//src/core/util/render_manager.cpp:4:
../vpython-core2//dependencies/boost_files/boost/exception/diagnostic_information.hpp:29: error: declaration does not declare anything
../vpython-core2//dependencies/boost_files/boost/exception/diagnostic_information.hpp:30: error: declaration does not declare anything
../vpython-core2//dependencies/boost_files/boost/exception/diagnostic_information.hpp:31: error: expected primary-expression before ‘)’ token
../vpython-core2//dependencies/boost_files/boost/exception/diagnostic_information.hpp:40: error: declaration does not declare anything
../vpython-core2//dependencies/boost_files/boost/exception/diagnostic_information.hpp:41: error: declaration does not declare anything
../vpython-core2//dependencies/boost_files/boost/exception/diagnostic_information.hpp:42: error: expected primary-expression before ‘)’ token
make: *** [render_manager.o] Error 1


Many thanks for any upcoming tips!
Best regards and good weekend!

Michael

_____________________________
Universität Bern
Physikalisches Institut
Space and Planetary Sciences

K.-Michael Aye, PhD
BELA Assistant Project Manager

Sidlerweg 5
CH-3012 Bern
Tel. +41 (0)31 631 44 27
Fax +41 (0)31 631 44 05
mailto:mic...@sp...
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Skype: kmichaelaye

Re: [Visualpython-users] Putting VPython simulations on the web

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

There are two options:

1) Make a movie of the animation; see the FAQ section of the 
documentation section of vpython.org.

2) Put the source code of the program on the web and ask users to 
install VPython and execute the program.

Bruce Sherwood

Chandra Prayaga wrote:
> Hi,
>  
> Is there a way to put a VPython simulation on the web?
>  
> Chandra Prayaga
>

[Visualpython-users] Putting VPython simulations on the web

[Chandra P. <cpr...@uw...>]

Hi,

Is there a way to put a VPython simulation on the web?

Chandra Prayaga

[Visualpython-users] cursor visibility

[Symion <kn...@ip...>]

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
</head>
<body bgcolor="#ffffff" text="#000000">
Hi there,<br>
&nbsp;&nbsp;&nbsp; I have found some weird behavior with the scene.cursor.visible
instruction running on Windows Vista.<br>
<br>
When I turn scene.cursor off, it does not reappear as
expected when I move the (invisible)&nbsp; cursor from Scene to Desk top and
back. Instead it remains invisible. This effect is easily
repeatable.<br>
<br>
'''<br>
Cursor visibility test<br>
'''<br>
from visual import *<br>
<br>
scene.autoscale, scene.range, scene.visible = False, 10, True<br>
<br>
b = 0<br>
while 1:<br>
&nbsp;&nbsp;&nbsp; a = scene.mouse.pos<br>
&nbsp;&nbsp;&nbsp; if scene.mouse.events&gt;0:<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mk = scene.mouse.getevent()<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if mk.release == 'left':<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; scene.cursor.visible = (scene.cursor.visible == False)<br>
&nbsp;&nbsp;&nbsp; elif a != b:<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; print a,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; b=a<br>
<br>
Left Mouse Click to turn cursor On/Off and test it.<br>
&nbsp;&nbsp;&nbsp; <br>
A work around:<br>
&nbsp;&nbsp;&nbsp; Turn cursor Off then push your mouse far enough so that the cursor
Should be outside the Scene.<br>
&nbsp;&nbsp;&nbsp; Press left mouse key and the cursor reappears when Outside the
Scene and becomes Invisible when Inside the Scene. Everything now seems
to work as
expected.<br>
&nbsp;&nbsp;&nbsp; Turning the cursor on and off again will cause the problem to
repeat.<br>
<br>
Symion<br>
<br>
</body>
</html>

Re: [Visualpython-users] "you do not have the header files required for building C/C++ extensions "

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

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html;charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
My guess is that you don't have the "developer" versions of some of the
libraries, possibly including some components of Python itself. In
Linus there are typically two different versions of libraries needed by
programs. The simple version is adequate for running programs built by
someone else, but to build a program yourself you need the "dev"
versions to be installed, which includes the include files (.h or .hpp)
that are needed in the compilation phase.<br>
<br>
Bruce Sherwood<br>
<br>
Xunchi Chen wrote:
<blockquote
 cite="mid:5a2...@ma..."
 type="cite">
  <div class="gmail_quote">
  <div>Dear Sir/Madam,</div>
  <div><br>
  </div>
  <div>When configuring visual-5.13_release.tar.bz2 on my UBUNTU 9.10,
an error occurred and I don't know what to do. Can you help?</div>
  <div><br>
  </div>
  <div><br>
  </div>
  <div>configure: error: A suitable python interpreter was found, but
you do not have the header files required for building C/C++ extensions
to python, or another problem was encoutered when compiling a program
that uses Python.h.</div>
  <div><br>
  </div>
  <div><br>
  </div>
Thank you very much!<br>
  <font color="#888888"><br>
Xunchi Chen<br>
  </font></div>
  <br>
  <pre wrap=""><pre wrap="">
<hr size="4" width="90%">
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Re: [Visualpython-users] compilation error with opensuse11.2

[Herbert W. <we...@su...>]

This posting
http://old.nabble.com/Compile-error-when-using-exception_translation.hpp-td25852545.html

solves the problem.
Regards
HW

On 01/13/2010 07:59 AM, Herbert Weigel wrote:
> To whom it might concern,
>
> when trying to install python-visual on opensuse11.2, the
> compilation exists with an error on cvisualmodule. Attached
> please find the resulting log files.
>
> I'd appreciate your help. Thanks!
>
> Best regards,
> Herbert Weigel
>
>   

-- 
        Herbert Weigel
        Stellenbosch University
        Physics Department
        Private Bag X1
        Matieland, Stellenbosch 7602
        South Africa

e-mail: we...@su...
Tel: +27 (0)21 808 3378
Fax: +27 (0)21 808 3385

http://star.sun.ac.za/~weigel/

-------------------------------------------------------------
|Two days in the lab easily save you an hour in the library!|
-------------------------------------------------------------

[Visualpython-users] compilation error with opensuse11.2

[Herbert W. <we...@su...>]

To whom it might concern,

when trying to install python-visual on opensuse11.2, the
compilation exists with an error on cvisualmodule. Attached
please find the resulting log files.

I'd appreciate your help. Thanks!

Best regards,
Herbert Weigel

-- 
        Herbert Weigel
        Stellenbosch University
        Physics Department
        Private Bag X1
        Matieland, Stellenbosch 7602
        South Africa

e-mail: we...@su...
Tel: +27 (0)21 808 3378
Fax: +27 (0)21 808 3385

http://star.sun.ac.za/~weigel/

-------------------------------------------------------------
|Two days in the lab easily save you an hour in the library!|
-------------------------------------------------------------

Re: [Visualpython-users] Help get python visual to work on OSX 10.6 with Python2.6.4!

[Martin C. <cos...@wa...>]

Bruce Sherwood wrote:
> This presumably produces a Unix-like version, right? The problem somehow 
> is with creating a Carbon-based Mac-specific version. But thanks for the 
> information.

Yes, this is the X11 version. It works with Fink's python26, which uses 
X11, too.

I should perhaps add that after Fink's python26 was updated from 2.6.2 
to 2.6.4 and boost1.35 compiled against the latter version of python, I 
first got the same breakage of vpython as anyone else ("AttributeError: 
'Boost.Python.StaticProperty' object attribute '__doc__' is read-only"). 
The latest version of boost1.35.python26 in Fink is now patched so that 
this error does not appear any more.

-- 
Martin

Re: [Visualpython-users] Help get python visual to work on OSX 10.6 with Python2.6.4!

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

This presumably produces a Unix-like version, right? The problem somehow 
is with creating a Carbon-based Mac-specific version. But thanks for the 
information.

Bruce Sherwood

Martin Costabel wrote:
> Bruce Sherwood wrote:
>> As Lenore says, the easy way to get Visual 5 to work on the Mac is to 
>> follow the instructions on the Mac download page at vpython.org, 
>> which includes installing Mac Python 2.6.2 before installing Visual. 
>> Visual will definitely not work with some other Python.
>>
>> The only way I've ever been able to build Visual 5 from scratch on 
>> the Mac is by checking out the source files from CVS on 
>> sourceforge.net and following the instructions in MAC-OSX.txt. I 
>> built for Mac Python 2.6.2.
>>
>> Recently I attempted to build for Mac Python 2.6.4 but failed with a 
>> problem in the latest Boost libraries, which I reported here. Steve 
>> Spicklemire said he would look into the problem.
>
> The fink package for visualpython 5.12 (visual-py26-5.12-3) builds OK 
> on Snow Leopard 64bit. It uses Fink's python-2.6.4 and boost1.35. I 
> haven't tried using later versions of boost.
>

Re: [Visualpython-users] Getting a simple graph animation plot to show

[John B. <joh...@gm...>]

I would just add that I got the plot to display by removing these lines from
original program as well:
graph1 = gdisplay()
graph1.display.visible = 0

2010/1/11 John Brennan <joh...@gm...>

> Okay I got it to work. That was my python programming error I getting used
> to the language. For the record one needs place funct1 = gdots() BEFORE
> entering the while loop and don't need to nest the for loop " for time in
> arange(0., 30., 1.): " inside the while loop or even in the program at all.
>
> 2010/1/9 Bruce Sherwood <Bru...@nc...>
>
>> Thanks, Lenore, for answering John's question. A further simplification is
>> that in the plot statement there's no need to specify
>> "gdisplay=Xvel.display" because Xvelnodrag was created for and belongs to
>> that gdisplay.
>>
>>
>> Xvel = gdisplay(x=0,y=0, width=262, height=100,
>> background=color.white, xmin=0, xmax=12, ymin=-vmax, ymax=vmax, title
>> = 'V_x(t)')
>> Xvelnodrag = gdots(size=3, color=nodragcolor)
>> ......
>>  Xvelnodrag.plot( gdisplay=Xvel.display, pos=(t,nodrag.velocity.x) )
>>
>> John, if you're comfortable with the default gdisplay and gdisplay
>> settings the minimal structure for making a graph is something like this:
>>
>> Xvelnodrag = gdots() # create a gdots object for graphics
>>
>> ...........
>>  Xvelnodrag.plot(pos=t,nodrag.velocity.x)) # add a dot to the gdots object
>>
>> Bruce Sherwood
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>> This SF.Net email is sponsored by the Verizon Developer Community
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>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>>
>
>

Re: [Visualpython-users] Getting a simple graph animation plot to show

[John B. <joh...@gm...>]

Okay I got it to work. That was my python programming error I getting used
to the language. For the record one needs place funct1 = gdots() BEFORE
entering the while loop and don't need to nest the for loop " for time in
arange(0., 30., 1.): " inside the while loop or even in the program at all.

2010/1/9 Bruce Sherwood <Bru...@nc...>

> Thanks, Lenore, for answering John's question. A further simplification is
> that in the plot statement there's no need to specify
> "gdisplay=Xvel.display" because Xvelnodrag was created for and belongs to
> that gdisplay.
>
> Xvel = gdisplay(x=0,y=0, width=262, height=100,
> background=color.white, xmin=0, xmax=12, ymin=-vmax, ymax=vmax, title
> = 'V_x(t)')
> Xvelnodrag = gdots(size=3, color=nodragcolor)
> ......
>  Xvelnodrag.plot( gdisplay=Xvel.display, pos=(t,nodrag.velocity.x) )
>
> John, if you're comfortable with the default gdisplay and gdisplay settings
> the minimal structure for making a graph is something like this:
>
> Xvelnodrag = gdots() # create a gdots object for graphics
>
> ...........
>  Xvelnodrag.plot(pos=t,nodrag.velocity.x)) # add a dot to the gdots object
>
> Bruce Sherwood
>
>
>
>
> ------------------------------------------------------------------------------
> This SF.Net email is sponsored by the Verizon Developer Community
> Take advantage of Verizon's best-in-class app development support
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> easy
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>

Re: [Visualpython-users] Help get python visual to work on OSX 10.6 with Python2.6.4!

[Martin C. <cos...@wa...>]

Bruce Sherwood wrote:
> As Lenore says, the easy way to get Visual 5 to work on the Mac is to 
> follow the instructions on the Mac download page at vpython.org, which 
> includes installing Mac Python 2.6.2 before installing Visual. Visual 
> will definitely not work with some other Python.
> 
> The only way I've ever been able to build Visual 5 from scratch on the 
> Mac is by checking out the source files from CVS on sourceforge.net and 
> following the instructions in MAC-OSX.txt. I built for Mac Python 2.6.2.
> 
> Recently I attempted to build for Mac Python 2.6.4 but failed with a 
> problem in the latest Boost libraries, which I reported here. Steve 
> Spicklemire said he would look into the problem.

The fink package for visualpython 5.12 (visual-py26-5.12-3) builds OK on 
Snow Leopard 64bit. It uses Fink's python-2.6.4 and boost1.35. I haven't 
tried using later versions of boost.

-- 
Martin

Re: [Visualpython-users] Help get python visual to work on OSX 10.6 with Python2.6.4!

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

My "snow leopard" just came in a couple days ago.. but of course now  
I'm starting a new semester and that has consumed most of my  
attention. Hopefully I'll get a chance to breathe soon and try a  
build on 10.6.

-steve

On Jan 10, 2010, at 5:44 PM, Bruce Sherwood wrote:

> As Lenore says, the easy way to get Visual 5 to work on the Mac is to
> follow the instructions on the Mac download page at vpython.org, which
> includes installing Mac Python 2.6.2 before installing Visual. Visual
> will definitely not work with some other Python.
>
> The only way I've ever been able to build Visual 5 from scratch on the
> Mac is by checking out the source files from CVS on sourceforge.net  
> and
> following the instructions in MAC-OSX.txt. I built for Mac Python  
> 2.6.2.
>
> Recently I attempted to build for Mac Python 2.6.4 but failed with a
> problem in the latest Boost libraries, which I reported here. Steve
> Spicklemire said he would look into the problem.
>
> Bruce Sherwood
>
> Lenore Horner wrote:
>> On Jan 9, 2010, at 21:31 , Nick Frisina wrote:
>>
>>
>>> Does anyone have this combination working "out of the box" so to
>>> speak??
>>> Is there tweaking involved?
>>>
>>> Long Story follows...
>>> thanks
>>> nickf
>>>
>>> =
>>> ==================================================================== 
>>> ==
>>> I have a  Mac OSX  10.6.2 Intel Core Duo:
>>> 10.2.0 Darwin Kernel Version 10.2.0: Tue Nov  3 10:37:10 PST 2009;
>>> root:xnu-1486.2.11~1/RELEASE_I386 i386
>>>
>>> I have Python from darwinPorts:
>>> 2.6.4
>>> (I also have 2.5 and 2.3, but I have code that I have tested so it
>>> points to
>>> the latest version by default))
>>>
>>> After a successful vpython install from
>>> http://vpython.org/contents/download_mac.html
>>>
>>> When I try to run any Python Visual code, I get the message:
>>> site-packages/visual/cvisual.so: mach-o, but wrong architecture
>>>
>>> This seems to be to be an error of a 32 bit shared object, whereas I
>>> believe I want a 64 bit shared object.
>>> file shows:
>>> /site-packages/visual/cvisual.so: Mach-O bundle i386
>>> whereas  I believe I need:
>>> 	Mach-O 64-bit bundle x86_64
>>>
>>  From the MacPorts side, this looks like you need to build
>> +universal?? (I'm not an expert, you might try asking there.)
>>
>>> I have started looking for the source to cvisual.so....but so far
>>> unsuccessful.
>>> The closest source I have found is cvisualmodule.cpp
>>> in the visual-5.12_release of the source .... but I am not convinced
>>> that is correct.
>>>
>>> I have installed all pre-requisites for VisualPython including
>>> "boost", GTK2, GTKMM, etc again from DarwinPorts.
>>>
>> You should be using MacPorts (http://www.macports.org/ which has an
>> active and helpful user list), not DarwinPorts (somewhere there's a
>> web page explaining the history, but the upshot is that MacPorts is
>> where the work is being done and where the answers are available).
>>
>>
>>> So I am ready....
>>>
>>> BUT after a successful configure, I get to the "make" stage...which
>>> mostly succeeds TILL I get an error:
>>>
>>> Compiling ./python/arrayprim.cpp ...
>>> make[1]: *** [arrayprim.lo] Error 1
>>> make: *** [all-recursive] Error 1
>>>
>>> It is the same error reported in Nov 2009 by:
>>> http://www.mail-archive.com/pyt...@py.../msg267326.html
>>>
>>> (Coincidently this is the 1st directory that includes "boost" if
>>> that helps ....)
>>>
>>> Has anyone solved this problem?
>>>
>> You're brave.  I tried to use my MacPorts python rather than
>> installing the recommended MacPython and gave up pretty quickly.
>> Vpython pages say there are special bits in MacPython (my words)
>> necessary for VPython but I don't think they say what the special  
>> bits
>> are.
>>
>> Lenore
>>
>>
>> --------------------------------------------------------------------- 
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>> Vis...@li...
>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>>
>
> ---------------------------------------------------------------------- 
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Re: [Visualpython-users] Help get python visual to work on OSX 10.6 with Python2.6.4!

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

As Lenore says, the easy way to get Visual 5 to work on the Mac is to 
follow the instructions on the Mac download page at vpython.org, which 
includes installing Mac Python 2.6.2 before installing Visual. Visual 
will definitely not work with some other Python.

The only way I've ever been able to build Visual 5 from scratch on the 
Mac is by checking out the source files from CVS on sourceforge.net and 
following the instructions in MAC-OSX.txt. I built for Mac Python 2.6.2.

Recently I attempted to build for Mac Python 2.6.4 but failed with a 
problem in the latest Boost libraries, which I reported here. Steve 
Spicklemire said he would look into the problem.

Bruce Sherwood

Lenore Horner wrote:
> On Jan 9, 2010, at 21:31 , Nick Frisina wrote:
>
>   
>> Does anyone have this combination working "out of the box" so to  
>> speak??
>> Is there tweaking involved?
>>
>> Long Story follows...
>> thanks
>> nickf
>>
>> = 
>> ======================================================================
>> I have a  Mac OSX  10.6.2 Intel Core Duo:
>> 10.2.0 Darwin Kernel Version 10.2.0: Tue Nov  3 10:37:10 PST 2009;  
>> root:xnu-1486.2.11~1/RELEASE_I386 i386
>>
>> I have Python from darwinPorts:
>> 2.6.4
>> (I also have 2.5 and 2.3, but I have code that I have tested so it  
>> points to
>> the latest version by default))
>>
>> After a successful vpython install from
>> http://vpython.org/contents/download_mac.html
>>
>> When I try to run any Python Visual code, I get the message:
>> site-packages/visual/cvisual.so: mach-o, but wrong architecture
>>
>> This seems to be to be an error of a 32 bit shared object, whereas I  
>> believe I want a 64 bit shared object.
>> file shows:
>> /site-packages/visual/cvisual.so: Mach-O bundle i386
>> whereas  I believe I need:
>> 	Mach-O 64-bit bundle x86_64
>>     
>  From the MacPorts side, this looks like you need to build  
> +universal?? (I'm not an expert, you might try asking there.)
>   
>> I have started looking for the source to cvisual.so....but so far  
>> unsuccessful.
>> The closest source I have found is cvisualmodule.cpp
>> in the visual-5.12_release of the source .... but I am not convinced  
>> that is correct.
>>
>> I have installed all pre-requisites for VisualPython including  
>> "boost", GTK2, GTKMM, etc again from DarwinPorts.
>>     
> You should be using MacPorts (http://www.macports.org/ which has an  
> active and helpful user list), not DarwinPorts (somewhere there's a  
> web page explaining the history, but the upshot is that MacPorts is  
> where the work is being done and where the answers are available).
>
>   
>> So I am ready....
>>
>> BUT after a successful configure, I get to the "make" stage...which  
>> mostly succeeds TILL I get an error:
>>
>> Compiling ./python/arrayprim.cpp ...
>> make[1]: *** [arrayprim.lo] Error 1
>> make: *** [all-recursive] Error 1
>>
>> It is the same error reported in Nov 2009 by:
>> http://www.mail-archive.com/pyt...@py.../msg267326.html
>>
>> (Coincidently this is the 1st directory that includes "boost" if  
>> that helps ....)
>>
>> Has anyone solved this problem?
>>     
> You're brave.  I tried to use my MacPorts python rather than  
> installing the recommended MacPython and gave up pretty quickly.   
> Vpython pages say there are special bits in MacPython (my words)  
> necessary for VPython but I don't think they say what the special bits  
> are.
>
> Lenore
>
>
> ------------------------------------------------------------------------------
> This SF.Net email is sponsored by the Verizon Developer Community
> Take advantage of Verizon's best-in-class app development support
> A streamlined, 14 day to market process makes app distribution fast and easy
> Join now and get one step closer to millions of Verizon customers
> http://p.sf.net/sfu/verizon-dev2dev 
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>   

Re: [Visualpython-users] Help get python visual to work on OSX 10.6 with Python2.6.4!

[Lenore H. <lh...@si...>]

On Jan 9, 2010, at 21:31 , Nick Frisina wrote:

> Does anyone have this combination working "out of the box" so to  
> speak??
> Is there tweaking involved?
>
> Long Story follows...
> thanks
> nickf
>
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> = 
> ======================================================================
> I have a  Mac OSX  10.6.2 Intel Core Duo:
> 10.2.0 Darwin Kernel Version 10.2.0: Tue Nov  3 10:37:10 PST 2009;  
> root:xnu-1486.2.11~1/RELEASE_I386 i386
>
> I have Python from darwinPorts:
> 2.6.4
> (I also have 2.5 and 2.3, but I have code that I have tested so it  
> points to
> the latest version by default))
>
> After a successful vpython install from
> http://vpython.org/contents/download_mac.html
>
> When I try to run any Python Visual code, I get the message:
> site-packages/visual/cvisual.so: mach-o, but wrong architecture
>
> This seems to be to be an error of a 32 bit shared object, whereas I  
> believe I want a 64 bit shared object.
> file shows:
> /site-packages/visual/cvisual.so: Mach-O bundle i386
> whereas  I believe I need:
> 	Mach-O 64-bit bundle x86_64
 From the MacPorts side, this looks like you need to build  
+universal?? (I'm not an expert, you might try asking there.)
>
> I have started looking for the source to cvisual.so....but so far  
> unsuccessful.
> The closest source I have found is cvisualmodule.cpp
> in the visual-5.12_release of the source .... but I am not convinced  
> that is correct.
>
> I have installed all pre-requisites for VisualPython including  
> "boost", GTK2, GTKMM, etc again from DarwinPorts.
You should be using MacPorts (http://www.macports.org/ which has an  
active and helpful user list), not DarwinPorts (somewhere there's a  
web page explaining the history, but the upshot is that MacPorts is  
where the work is being done and where the answers are available).

> So I am ready....
>
> BUT after a successful configure, I get to the "make" stage...which  
> mostly succeeds TILL I get an error:
>
> Compiling ./python/arrayprim.cpp ...
> make[1]: *** [arrayprim.lo] Error 1
> make: *** [all-recursive] Error 1
>
> It is the same error reported in Nov 2009 by:
> http://www.mail-archive.com/pyt...@py.../msg267326.html
>
> (Coincidently this is the 1st directory that includes "boost" if  
> that helps ....)
>
> Has anyone solved this problem?
You're brave.  I tried to use my MacPorts python rather than  
installing the recommended MacPython and gave up pretty quickly.   
Vpython pages say there are special bits in MacPython (my words)  
necessary for VPython but I don't think they say what the special bits  
are.

Lenore

[Visualpython-users] Help get python visual to work on OSX 10.6 with Python2.6.4!

[Nick F. <ni...@bi...>]

Does anyone have this combination working "out of the box" so to speak??
Is there tweaking involved?

Long Story follows...
thanks
nickf 

========================================================================================
I have a  Mac OSX  10.6.2 Intel Core Duo:
10.2.0 Darwin Kernel Version 10.2.0: Tue Nov  3 10:37:10 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386 i386

I have Python from darwinPorts:
2.6.4    
(I also have 2.5 and 2.3, but I have code that I have tested so it points to
the latest version by default))

After a successful vpython install from
http://vpython.org/contents/download_mac.html

When I try to run any Python Visual code, I get the message:
site-packages/visual/cvisual.so: mach-o, but wrong architecture

This seems to be to be an error of a 32 bit shared object, whereas I believe I want a 64 bit shared object.
file shows:
/site-packages/visual/cvisual.so: Mach-O bundle i386
whereas  I believe I need:
	Mach-O 64-bit bundle x86_64

I have started looking for the source to cvisual.so....but so far unsuccessful.
The closest source I have found is cvisualmodule.cpp
in the visual-5.12_release of the source .... but I am not convinced that is correct.

I have installed all pre-requisites for VisualPython including "boost", GTK2, GTKMM, etc again from DarwinPorts.
So I am ready....

BUT after a successful configure, I get to the "make" stage...which mostly succeeds TILL I get an error:

Compiling ./python/arrayprim.cpp ...
make[1]: *** [arrayprim.lo] Error 1
make: *** [all-recursive] Error 1

It is the same error reported in Nov 2009 by:
http://www.mail-archive.com/pyt...@py.../msg267326.html

(Coincidently this is the 1st directory that includes "boost" if that helps ....)

Has anyone solved this problem?

Thanks
nickf

Re: [Visualpython-users] Getting a simple graph animation plot to show

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

Thanks, Lenore, for answering John's question. A further simplification is that in the plot statement there's no need to specify "gdisplay=Xvel.display" because Xvelnodrag was created for and belongs to that gdisplay.

Xvel = gdisplay(x=0,y=0, width=262, height=100,  
background=color.white, xmin=0, xmax=12, ymin=-vmax, ymax=vmax, title  
= 'V_x(t)')
Xvelnodrag = gdots(size=3, color=nodragcolor)
......
  Xvelnodrag.plot( gdisplay=Xvel.display, pos=(t,nodrag.velocity.x) )

John, if you're comfortable with the default gdisplay and gdisplay settings the minimal structure for making a graph is something like this:

Xvelnodrag = gdots() # create a gdots object for graphics

...........
  Xvelnodrag.plot(pos=t,nodrag.velocity.x)) # add a dot to the gdots object

Bruce Sherwood

Re: [Visualpython-users] Getting a simple graph animation plot to show

[Lenore H. <lh...@si...>]

On Jan 9, 2010, at 07:41 , John Brennan wrote:

> I having difficulty in trying to display two windows one with action/ 
> animation and the graph that relates to the action. I tried to put  
> together pieces from the documentation on graphs. I want to graph  
> the time by speed of the accelerated ball in the animated window.  
> The code below does succeed in running the animation and can display  
> the graph window but I cannot get the plotting function to display  
> on the graphing window I created. Does the curve need to be an  
> argument with gdisplay at the beginning but that isn't a clear  
> parameter in the documentation. Within the motion loop, I feel like  
> there should be something like graph1 = gdisplay(funct1) to relate  
> the function to the graph window but it isn't clear how to do this.  
> What is the best and tidiest way to do this?
>
> # Adapted from erik thompson video lesson 1.
>
> from visual import *
> from visual.text import *
> from visual.graph import * # import graphing features
>
> scene.width = 800
> scene.height = 600
>
> scene.autoscale = 0
> scene.range = (100,100,100)
> scene.center = (0,40,0)
>
> scene.title = "Acceleration"
> scene.fov = 0.001
> #scene.range = 7                 #sets the starting position view.
>
> ball = sphere(pos=(100.0,0,0),radius=2)
> ground = box(pos=(-1,0,0),size=(2,10,10))
>
> initPos = ball.pos
> acc = 9.8   # m/s**2
> seconds = 0.0
> dt = .01    #change in time
>
> graph1 = gdisplay(x=0, y=600, width=600, height=500,
>         title='dt vs. dv', xtitle='change in time', ytitle='change  
> in speed',
>         xmax=30, xmin=0., ymax=25, ymin=0,
>         foreground=color.black,  
> background=color.white)                    # is gcurve an argument  
> that should go in here
>
> graph1 = gdisplay()
> graph1.display.visible = 0 # make the display visible
>
> finished = False
> while not finished:
>
>     rate(100)   # sets the general rate and speed of the computations
>     seconds += dt    #increment time
>
>
>     distance = 0 + .5 * acc * seconds**2 #distance travelled
>     time = seconds
>     speed = distance / time
>
>     funct1 = gcurve(color=color.cyan)
>     graph1 = gdisplay(funct1)           #I know this is wrong but  
> how do I place on graph1.
>     for time in arange(0.0, 30.0, 0.1):    # time is a range that  
> goes from 0 to 30 (in increments of 0.1).
>         funct1.plot(pos=(time,speed))    # plot a time by speed graph.
>
>     # position equation: y(t) = y0 + v0*t + .5 * a * t**2. So the  
> position of the ball at any given instance is...
>     ballTravel = 100.0 - .5 * acc * seconds**2
>
>     #new position
>     ball.pos = vector(ballTravel,0,0)
>
>     if ballTravel - 2 < 0:       #try to stop at 1 on the platform
>         finished = True
>         print "seconds to fall: " + str(seconds)        #print to  
> the display console.
>
Here are relevant snippets from my code.

Xvel = gdisplay(x=0,y=0, width=262, height=100,  
background=color.white, xmin=0, xmax=12, ymin=-vmax, ymax=vmax, title  
= 'V_x(t)')
Xvelnodrag = gdots(size=3, color=nodragcolor)

  Xvelnodrag.plot( gdisplay=Xvel.display, pos=(t,nodrag.velocity.x) )


Lenore

[Visualpython-users] Getting a simple graph animation plot to show

[John B. <joh...@gm...>]

I having difficulty in trying to display two windows one with
action/animation and the graph that relates to the action. I tried to put
together pieces from the documentation on graphs. I want to graph the time
by speed of the accelerated ball in the animated window. The code below does
succeed in running the animation and can display the graph window but I
cannot get the plotting function to display on the graphing window I
created. Does the curve need to be an argument with gdisplay at the
beginning but that isn't a clear parameter in the documentation. Within the
motion loop, I feel like there should be something like graph1 =
gdisplay(funct1) to relate the function to the graph window but it isn't
clear how to do this. What is the best and tidiest way to do this?

# Adapted from erik thompson video lesson 1.

from visual import *
from visual.text import *
from visual.graph import * # import graphing features

scene.width = 800
scene.height = 600

scene.autoscale = 0
scene.range = (100,100,100)
scene.center = (0,40,0)

scene.title = "Acceleration"
scene.fov = 0.001
#scene.range = 7                 #sets the starting position view.

ball = sphere(pos=(100.0,0,0),radius=2)
ground = box(pos=(-1,0,0),size=(2,10,10))

initPos = ball.pos
acc = 9.8   # m/s**2
seconds = 0.0
dt = .01    #change in time

graph1 = gdisplay(x=0, y=600, width=600, height=500,
        title='dt vs. dv', xtitle='change in time', ytitle='change in
speed',
        xmax=30, xmin=0., ymax=25, ymin=0,
        foreground=color.black, background=color.white)                    #
is gcurve an argument that should go in here

graph1 = gdisplay()
graph1.display.visible = 0 # make the display visible

finished = False
while not finished:

    rate(100)   # sets the general rate and speed of the computations
    seconds += dt    #increment time


    distance = 0 + .5 * acc * seconds**2 #distance travelled
    time = seconds
    speed = distance / time

    funct1 = gcurve(color=color.cyan)
    graph1 = gdisplay(funct1)           #I know this is wrong but how do I
place on graph1.
    for time in arange(0.0, 30.0, 0.1):    # time is a range that goes from
0 to 30 (in increments of 0.1).
        funct1.plot(pos=(time,speed))    # plot a time by speed graph.

    # position equation: y(t) = y0 + v0*t + .5 * a * t**2. So the position
of the ball at any given instance is...
    ballTravel = 100.0 - .5 * acc * seconds**2

    #new position
    ball.pos = vector(ballTravel,0,0)

    if ballTravel - 2 < 0:       #try to stop at 1 on the platform
        finished = True
        print "seconds to fall: " + str(seconds)        #print to the
display console.

Re: [Visualpython-users] "you do not have the header files required for building C/C++ extensions "

[TH C. <teo...@gm...>]

Hi,

have you check and install all the required package(s) needed for the
compilation, notably lots of "-dev" packages? Or you can just simply install
the python-visual package from your synaptic and update your boost
libraries. Details at
http://sourceforge.net/mailarchive/forum.php?thread_name=db871a220911161147w234676dbs505f467e3c3940f5%40mail.gmail.com&forum_name=visualpython-users

On Sat, Jan 9, 2010 at 12:05 PM, Xunchi Chen <che...@gm...> wrote:

> Dear Sir/Madam,
>
> When configuring visual-5.13_release.tar.bz2 on my UBUNTU 9.10, an
> error occurred and I don't know what to do. Can you help?
>
>
> configure: error: A suitable python interpreter was found, but you do not
> have the header files required for building C/C++ extensions to python, or
> another problem was encoutered when compiling a program that uses Python.h.
>
>
> Thank you very much!
>
> Xunchi Chen
>
>
>
> ------------------------------------------------------------------------------
> This SF.Net email is sponsored by the Verizon Developer Community
> Take advantage of Verizon's best-in-class app development support
> A streamlined, 14 day to market process makes app distribution fast and
> easy
> Join now and get one step closer to millions of Verizon customers
> http://p.sf.net/sfu/verizon-dev2dev
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>
>


-- 
Regards,
THChew

[Visualpython-users] "you do not have the header files required for building C/C++ extensions "

[Xunchi C. <che...@gm...>]

Dear Sir/Madam,

When configuring visual-5.13_release.tar.bz2 on my UBUNTU 9.10, an
error occurred and I don't know what to do. Can you help?


configure: error: A suitable python interpreter was found, but you do not
have the header files required for building C/C++ extensions to python, or
another problem was encoutered when compiling a program that uses Python.h.


Thank you very much!

Xunchi Chen

[Visualpython-users] vpython - compile

[Manuel G. <mga...@gm...>]

Hi. 
I need help setting up vpython on my system.
Thanks.
Manny

[Visualpython-users] Compilation Error Mandriva 2010

[steve m. <mwi...@gm...>]

Hi ,
I have Mandriva 2010 and have installed the library it complains via
Mandriva repos. But it keep complaining as shown below. I have tried
to uninstall/re-install the library but I haven't been successful.
what should I do?
Here is the error after typing in konsole command ./configure:

checking pkg-config is at least version 0.9.0... yes
checking for GTKGLEXTMM... yes
checking for GLIBMM... yes
checking for PANGOMM... yes
checking for LIBGLADEMM... no
configure: error: libglademm-2.4 is required

I have that library installed so Iam stucked!

Thanks

Re: [Visualpython-users] make fails on visual 5.13

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

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <meta content="text/html;charset=UTF-8" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
That indicates that there are missing libraries in the link phase. Look
at the end of src/build.log to try to identify the missing libraries.
Study INSTALL.txt in detail for information on dependencies. What
platform is this?<br>
<br>
Bruce Sherwood <br>
<br>
Luke wrote:
<blockquote
 cite="mid:992...@ma..."
 type="cite">I run ./configure --prefix=$HOME/usr, then make and all
seems to compile ok, but then I get this error:<br>
Compiling ./gtk2/rate.cpp
...                                                              <br>
Linking <a moz-do-not-send="true" href="http://cvisualmodule.la">cvisualmodule.la</a>
...                                                               <br>
make[1]: *** [<a moz-do-not-send="true" href="http://cvisualmodule.la">cvisualmodule.la</a>]
Error 1                                                    <br>
make[1]: Leaving directory
`/home/luke/Downloads/visual-5.13_release/src'                  <br>
make: *** [all-recursive] Error 1<br>
$<br>
  <br>
Any ideas what would have caused this?<br>
  <br>
Thanks,<br>
~Luke<br>
  <br>
</blockquote>
</body>
</html>