visualpython-users

Re: [Visualpython-users] libgtkgl.so.5 error

[Andy D. <dou...@la...>]

On Mon, 16 Sep 2002, Bruce Sherwood wrote:

> Presumably this is on Linux? Is there anyone among the VPython users that
> knows anything about Mesa? I gather it is supposed to be an alternative to
> OpenGL, but the overview at the Mesa web site implies that one should not
> expect it to work the same. Since the VPython Visual module interfaces to
> OpenGL, not Mesa, is there any reason to think that it should work with
> Mesa?

It'll probably work on Mesa.  I have gotten it to work somewhat with
Mesa, but frame refreshes are erratic.  It's not clear if this is a
separate threading issue or a Mesa issue or what.  I plan to try
re-installing with a 2.4.x kernel and see what I get.

The Mesa folks have traditionally been quite careful to respect SGI's
copyright and trademark claims on OpenGL, and to be quite clear that Mesa
is not an offical OpenGL product.  I think that attitude comes through 
clearly in the overviews and other documentation that comes with Mesa.
Sometimes too clearly, but they really do want to be careful and explicit
and not mislead anyone.

That said, they work very very hard to make it compatible with OpenGL, so
I'd expect it to work.

    Andy Dougherty		dou...@la...
    Dept. of Physics
    Lafayette College, Easton PA 18042

Re: [Visualpython-users] libgtkgl.so.5 error

[Andrew M. <mor...@ph...>]

Eve...

What version of gtkglarea do you have? I am using gtkglarea-1.2.1-1, you
probably have something newer.   Try downgrading to gtkglarea-1.2.1-1
and see what happens.   (Unless downgrading breaks important
dependencies that you need.)

Andrew

On Mon, 2002-09-16 at 22:00, Eve Kotyk wrote:
> On Mon, 16 Sep 2002 15:20:22 -0400
> Bruce Sherwood <bas...@un...> wrote:
>=20
> > Presumably this is on Linux? Is there anyone among the VPython users
> > that knows anything about Mesa? I gather it is supposed to be an
> > alternative to OpenGL, but the overview at the Mesa web site implies
> > that one should not expect it to work the same. Since the VPython
> > Visual module interfaces to OpenGL, not Mesa, is there any reason to
> > think that it should work with Mesa?
>=20
> Redhat Linux v7.2, kernel v 2.4, XFree86 v 4
>=20
> Perhaps mentioning that I had Mesa installed is a red herring. =20
> That aside.  How can I solve my problem?
>=20
> Eve
> >=20
> > Bruce Sherwood
> >=20
> > ----- Original Message -----
> > From: "Eve Kotyk" <e....@sh...>
> > To: <vis...@li...>
> > Sent: Sunday, September 15, 2002 11:17 PM
> > Subject: [Visualpython-users] libgtkgl.so.5 error
> >=20
> >=20
> > > I have just installed VPython (and Python2.2) and tried to run one
> > > of the demos.  Each one results in the following error.  I have Mesa
> > > v3.4.2-7 installed.  Can anyone tell me how I can fix this problem?
> > >
> > > Traceback (innermost last)
> > >    File "/usr/local/bin/VPython/Programs/Demos/helix.py", line 1, in
> > >    ?  from visual import *
> > > ImportError: /usr/lib/libgtkgl.so.5: undefined symbol: glXUseXFont
> > >
> > > --
> > >
> > > ekotyk
> > > -------------------------------------------------------
> > > This sf.net email is sponsored by:ThinkGeek
> > > Welcome to geek heaven.
> > > http://thinkgeek.com/sf
> > > _______________________________________________
> > > Visualpython-users mailing list
> > > Vis...@li...
> > > https://lists.sourceforge.net/lists/listinfo/visualpython-users
> > >
> >=20
>=20
>=20
> --=20
>=20
> ekotyk
>=20
> http://members.shaw.ca/e.kotyk/virtualstudio.htm
>=20
>=20
> -------------------------------------------------------
> Sponsored by: AMD - Your access to the experts on Hammer Technology!=20
> Open Source & Linux Developers, register now for the AMD Developer=20
> Symposium. Code: EX8664 http://www.developwithamd.com/developerlab
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>=20
>=20

Re: [Visualpython-users] libgtkgl.so.5 error

[Eve K. <e....@sh...>]

On Mon, 16 Sep 2002 15:20:22 -0400
Bruce Sherwood <bas...@un...> wrote:

> Presumably this is on Linux? Is there anyone among the VPython users
> that knows anything about Mesa? I gather it is supposed to be an
> alternative to OpenGL, but the overview at the Mesa web site implies
> that one should not expect it to work the same. Since the VPython
> Visual module interfaces to OpenGL, not Mesa, is there any reason to
> think that it should work with Mesa?

Redhat Linux v7.2, kernel v 2.4, XFree86 v 4

Perhaps mentioning that I had Mesa installed is a red herring.  
That aside.  How can I solve my problem?

Eve
> 
> Bruce Sherwood
> 
> ----- Original Message -----
> From: "Eve Kotyk" <e....@sh...>
> To: <vis...@li...>
> Sent: Sunday, September 15, 2002 11:17 PM
> Subject: [Visualpython-users] libgtkgl.so.5 error
> 
> 
> > I have just installed VPython (and Python2.2) and tried to run one
> > of the demos.  Each one results in the following error.  I have Mesa
> > v3.4.2-7 installed.  Can anyone tell me how I can fix this problem?
> >
> > Traceback (innermost last)
> >    File "/usr/local/bin/VPython/Programs/Demos/helix.py", line 1, in
> >    ?  from visual import *
> > ImportError: /usr/lib/libgtkgl.so.5: undefined symbol: glXUseXFont
> >
> > --
> >
> > ekotyk
> > -------------------------------------------------------
> > This sf.net email is sponsored by:ThinkGeek
> > Welcome to geek heaven.
> > http://thinkgeek.com/sf
> > _______________________________________________
> > Visualpython-users mailing list
> > Vis...@li...
> > https://lists.sourceforge.net/lists/listinfo/visualpython-users
> >
> 


-- 

ekotyk

http://members.shaw.ca/e.kotyk/virtualstudio.htm

Re: [Visualpython-users] libgtkgl.so.5 error

[Bruce S. <bas...@un...>]

Presumably this is on Linux? Is there anyone among the VPython users that
knows anything about Mesa? I gather it is supposed to be an alternative to
OpenGL, but the overview at the Mesa web site implies that one should not
expect it to work the same. Since the VPython Visual module interfaces to
OpenGL, not Mesa, is there any reason to think that it should work with
Mesa?

Bruce Sherwood

----- Original Message -----
From: "Eve Kotyk" <e....@sh...>
To: <vis...@li...>
Sent: Sunday, September 15, 2002 11:17 PM
Subject: [Visualpython-users] libgtkgl.so.5 error


> I have just installed VPython (and Python2.2) and tried to run one of
> the demos.  Each one results in the following error.  I have Mesa
> v3.4.2-7 installed.  Can anyone tell me how I can fix this problem?
>
> Traceback (innermost last)
>    File "/usr/local/bin/VPython/Programs/Demos/helix.py", line 1, in ?
>      from visual import *
> ImportError: /usr/lib/libgtkgl.so.5: undefined symbol: glXUseXFont
>
> --
>
> ekotyk
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>

[Visualpython-users] libgtkgl.so.5 error

[Eve K. <e....@sh...>]

I have just installed VPython (and Python2.2) and tried to run one of 
the demos.  Each one results in the following error.  I have Mesa 
v3.4.2-7 installed.  Can anyone tell me how I can fix this problem?

Traceback (innermost last)
   File "/usr/local/bin/VPython/Programs/Demos/helix.py", line 1, in ?
     from visual import *
ImportError: /usr/lib/libgtkgl.so.5: undefined symbol: glXUseXFont

-- 

ekotyk

Re: [Visualpython-users] Mandrake 8.2 compile problems

[Andy D. <dou...@la...>]

On Wed, 28 Aug 2002, rod holland wrote:

> I am revisiting my compile problems.  I gave up for a month or so but I
> would really like to get VPython running on Mandrake 8.2.  I have attached
> the compilation output.  In xgl.h; if I use /gtk/... then it makes it to
> "convex" before segfaulting.  If I use gtk-1.2/gtk/... as suggested on the
> web site then it segfaults in the "box" module.  I have included a full
> output for a "convex" case and the last few lines of three successive runs.
>  The case where it fails in "box" is similar.
> 
> Are my libraries incompatible - how can I test and fix? I really do not
> know what to do from this point?

> g++ -I. -I./CXX/Include -I/usr/local/include/python2.2
> -I/usr/local/include/python2.2/Numeric -I/usr/include/gtk-1.2
> -I/usr/include/glib-1.2 -I/usr/lib/glib/include -D_REENTRANT
> -I/usr/X11R6/include -w   -c -o convex.o convex.cpp
> In file included from pvector.h:6,
>                  from cvisual.h:6,
>                  from display.h:5,
>                  from arrprim.h:5,
>                  from convex.cpp:2:
> CXX/Include/CXX_Objects.h:1039: Internal error: Segmentation fault.
> Please submit a full bug report.
> See <URL:https://qa.mandrakesoft.com/> for instructions.

My suspicion today is the same as it was the last time you reported this.
It should be impossible for Vpython to cause g++ to generate an "Internal
error" and cause a Segmentation fault.  Did you follow the suggestion
above and "submit a full bug report"?  One very real possiblity is a
compiler bug of some sort.

Also, the last time you reported this, you noted that running the same
command several times in succession gave different segmentation faults.
That's often a sign of either a hardware problem or a disk file system
corruption problem.  Did you follow up on my suggestions last month to
look into those issues?

-- 
    Andy Dougherty		dou...@la...
    Dept. of Physics
    Lafayette College, Easton PA 18042

Re: [Visualpython-users] Mandrake 8.2 compile problems

[Andrew M. <mor...@ph...>]

<I meant to send my previous reply to the list. Sorry.>

I don't know exactly what the segfault means.  I do know that I had
problems compiling with Mandrake8.1, but I got it done eventually.

A simple reason the compile may start off successfully but fail in the
middle is that the library is not called in the first couple dozen files
the compile accesses.   I don't know this.   I am merely speculating. =20

From your posted output:

g++ -I. -I./CXX/Include -I/usr/local/include/python2.2
-I/usr/local/include/python2.2/Numeric -I/usr/include/gtk-1.2
-I/usr/include/glib-1.2 -I/usr/lib/glib/include -D_REENTRANT
-I/usr/X11R6/include -w   -c -o convex.o convex.cpp
In file included from pvector.h:6,
                 from cvisual.h:6,
                 from display.h:5,
                 from arrprim.h:5,
                 from convex.cpp:2:
CXX/Include/CXX_Objects.h:1039: Internal error: Segmentation fault.

Are all the paths above correct?  ie... does
/usr/local/include/python2.2/Numeric exist?  What is being called at
line 1039 in CXX_Objects.h? =20

Sorry to be grasping at straws.    I did not do this on Mandrake8.2, and
my mandrake box is at home.

Andrew


On Thu, 2002-08-29 at 13:31, rod holland wrote:
> Am I misunderstanding something here?  Can a segfault mean that the
> libraries are not found?  Or are you saying that it is finding libraries,
> but not the right ones?  I would think if it did not find the libraries I
> would get a different error message.  And why does it apparently
> succesfully compile a few of the modules but get stuck on others?
>=20
> Rod
>=20
> At 11:24 AM 8/29/2002 -0400, you wrote:
> >On Wed, 2002-08-28 at 23:28, rod holland wrote:
> >> I am revisiting my compile problems.  I gave up for a month or so but =
I
> >> would really like to get VPython running on Mandrake 8.2.  I have atta=
ched
> >> the compilation output.  In xgl.h; if I use /gtk/... then it makes it =
to
> >> "convex" before segfaulting.  If I use gtk-1.2/gtk/... as suggested on=
 the
> >> web site then it segfaults in the "box" module.  I have included a ful=
l
> >> output for a "convex" case and the last few lines of three successive =
runs.
> >>  The case where it fails in "box" is similar.
> >>=20
> >> Are my libraries incompatible - how can I test and fix? I really do no=
t
> >> know what to do from this point?
> >>=20
> >> Thanks
> >>=20
> >> Rod
> >>=20
> >
> >Rod,=20
> >
> >I know installation is frustrating.  (I don't know why it is, but it
> >is.) Have you followed the tips on the website for mandrake 8?
> >(http://www.vpython.org/morelinux.html)
> >
> >Try seeing that the libraries that you have installed are in the
> >directories that the compile is looking in.   I had to symlink some libs
> >that were in /usr/lib but the compiler was looking in /usr/local/lib.
> >
> >Luck!
> >
> >Andrew
> >
> >
> >
> >Attachment Converted: "c:\eudora\attach\signature2.asc"
> >
>=20
>=20

[Visualpython-users] Mandrake 8.2 compile problems

[rod h. <rh...@St...>]

I am revisiting my compile problems.  I gave up for a month or so but I
would really like to get VPython running on Mandrake 8.2.  I have attached
the compilation output.  In xgl.h; if I use /gtk/... then it makes it to
"convex" before segfaulting.  If I use gtk-1.2/gtk/... as suggested on the
web site then it segfaults in the "box" module.  I have included a full
output for a "convex" case and the last few lines of three successive runs.
 The case where it fails in "box" is similar.

Are my libraries incompatible - how can I test and fix? I really do not
know what to do from this point?

Thanks

Rod


############ run 1

./install
Preparing...                ########################################### [100%]
package gtkglarea-1.2.2-10 is already installed
   1:gtkglarea              ########################################### [100%]
running install
running build
running build_py
not copying Lib/ArrayPrinter.py (output up-to-date)
not copying Lib/Numeric.py (output up-to-date)
not copying Lib/Precision.py (output up-to-date)
not copying Lib/UserArray.py (output up-to-date)
not copying Lib/numeric_version.py (output up-to-date)
not copying Lib/LinearAlgebra.py (output up-to-date)
not copying Lib/MLab.py (output up-to-date)
not copying Lib/Matrix.py (output up-to-date)
not copying Lib/RandomArray.py (output up-to-date)
not copying Packages/FFT/Lib/FFT.py (output up-to-date)
not copying Packages/FFT/Lib/__init__.py (output up-to-date)
not copying Packages/MA/Lib/MA_version.py (output up-to-date)
not copying Packages/MA/Lib/__init__.py (output up-to-date)
not copying Packages/MA/Lib/MA.py (output up-to-date)
not copying Packages/Properties/Lib/Properties.py (output up-to-date)
not copying Packages/Properties/Lib/__init__.py (output up-to-date)
not copying Packages/Properties/Lib/Properties_version.py (output up-to-date)
not copying Packages/RNG/Lib/__init__.py (output up-to-date)
not copying Packages/RNG/Lib/Statistics.py (output up-to-date)
not copying Packages/kinds/Lib/__init__.py (output up-to-date)
not copying Packages/kinds/Lib/kinds.py (output up-to-date)
not copying Packages/kinds/Lib/kinds_version.py (output up-to-date)
running build_ext
skipping '_numpy' extension (up-to-date)
skipping 'multiarray' extension (up-to-date)
skipping 'umath' extension (up-to-date)
skipping 'arrayfns' extension (up-to-date)
skipping 'ranlib' extension (up-to-date)
skipping 'lapack_lite' extension (up-to-date)
skipping 'FFT.fftpack' extension (up-to-date)
skipping 'RNG.RNG' extension (up-to-date)
skipping 'kinds._kinds' extension (up-to-date)
running install_lib
not copying build/lib.linux-i586-2.2/ArrayPrinter.py (output up-to-date)
not copying build/lib.linux-i586-2.2/Numeric.py (output up-to-date)
not copying build/lib.linux-i586-2.2/Precision.py (output up-to-date)
not copying build/lib.linux-i586-2.2/UserArray.py (output up-to-date)
not copying build/lib.linux-i586-2.2/numeric_version.py (output up-to-date)
not copying build/lib.linux-i586-2.2/LinearAlgebra.py (output up-to-date)
not copying build/lib.linux-i586-2.2/MLab.py (output up-to-date)
not copying build/lib.linux-i586-2.2/Matrix.py (output up-to-date)
not copying build/lib.linux-i586-2.2/RandomArray.py (output up-to-date)
not copying build/lib.linux-i586-2.2/FFT/FFT.py (output up-to-date)
not copying build/lib.linux-i586-2.2/FFT/__init__.py (output up-to-date)
not copying build/lib.linux-i586-2.2/FFT/fftpack.so (output up-to-date)
not copying build/lib.linux-i586-2.2/MA/MA_version.py (output up-to-date)
not copying build/lib.linux-i586-2.2/MA/__init__.py (output up-to-date)
not copying build/lib.linux-i586-2.2/MA/MA.py (output up-to-date)
not copying build/lib.linux-i586-2.2/PropertiedClasses/Properties.py
(output up-to-date)
not copying build/lib.linux-i586-2.2/PropertiedClasses/__init__.py (output
up-to-date)
not copying
build/lib.linux-i586-2.2/PropertiedClasses/Properties_version.py (output
up-to-date)
not copying build/lib.linux-i586-2.2/RNG/__init__.py (output up-to-date)
not copying build/lib.linux-i586-2.2/RNG/Statistics.py (output up-to-date)
not copying build/lib.linux-i586-2.2/RNG/RNG.so (output up-to-date)
not copying build/lib.linux-i586-2.2/kinds/__init__.py (output up-to-date)
not copying build/lib.linux-i586-2.2/kinds/kinds.py (output up-to-date)
not copying build/lib.linux-i586-2.2/kinds/kinds_version.py (output
up-to-date)
not copying build/lib.linux-i586-2.2/kinds/_kinds.so (output up-to-date)
not copying build/lib.linux-i586-2.2/_numpy.so (output up-to-date)
not copying build/lib.linux-i586-2.2/multiarray.so (output up-to-date)
not copying build/lib.linux-i586-2.2/umath.so (output up-to-date)
not copying build/lib.linux-i586-2.2/arrayfns.so (output up-to-date)
not copying build/lib.linux-i586-2.2/ranlib.so (output up-to-date)
not copying build/lib.linux-i586-2.2/lapack_lite.so (output up-to-date)
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/ArrayPrinter.py to
ArrayPrinter.pycskipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/Numeric.py to Numeric.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/Precision.py to Precision.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/UserArray.py to UserArray.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/numeric_version.py to
numeric_version.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/LinearAlgebra.py to
LinearAlgebra.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/MLab.py to MLab.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/Matrix.py to Matrix.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/RandomArray.py to
RandomArray.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/FFT/FFT.py to FFT.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/FFT/__init__.py to __init__.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/MA/MA_version.py to
MA_version.pyc skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/MA/__init__.py to __init__.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/MA/MA.py to MA.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/PropertiedClasses/Properties.
py to Properties.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/PropertiedClasses/__init__.py
 to __init__.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/PropertiedClasses/Properties_
version.py to Properties_version.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/RNG/__init__.py to __init__.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/RNG/Statistics.py to
Statistics.pycskipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/kinds/__init__.py to
__init__.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/kinds/kinds.py to kinds.pyc
skipping byte-compilation of
/usr/local/lib/python2.2/site-packages/Numeric/kinds/kinds_version.py to
kinds_version.pyc
running install_headers
not copying Include/Numeric/arrayobject.h (output up-to-date)
not copying Include/Numeric/ufuncobject.h (output up-to-date)
not copying Include/Numeric/f2c.h (output up-to-date)
not copying Include/Numeric/ranlib.h (output up-to-date)
creating /usr/local/lib/python2.2/site-packages/Numeric.pth
MA Version 11.1.0
Properties Version 2.2
kinds Version 1.1
Numeric Version 21.0b1
g++ -I. -I./CXX/Include -I/usr/local/include/python2.2
-I/usr/local/include/python2.2/Numeric -I/usr/include/gtk-1.2
-I/usr/include/glib-1.2 -I/usr/lib/glib/include -D_REENTRANT
-I/usr/X11R6/include -w   -c -o convex.o convex.cpp
In file included from pvector.h:6,
                 from cvisual.h:6,
                 from display.h:5,
                 from arrprim.h:5,
                 from convex.cpp:2:
CXX/Include/CXX_Objects.h:1039: Internal error: Segmentation fault.
Please submit a full bug report.
See <URL:https://qa.mandrakesoft.com/> for instructions.
make: *** [convex.o] Error 1
cp: cannot stat `cvisualmodule.so': No such file or directory


##############run 2

MA Version 11.1.0
Properties Version 2.2
kinds Version 1.1
Numeric Version 21.0b1
g++ -I. -I./CXX/Include -I/usr/local/include/python2.2
-I/usr/local/include/python2.2/Numeric -I/usr/include/gtk-1.2
-I/usr/include/glib-1.2 -I/usr/lib/glib/include -D_REENTRANT
-I/usr/X11R6/include -w   -c -o convex.o convex.cpp
In file included from /usr/include/gtk-1.2/gdk/gdk.h:31,
                 from xgl.h:9,
                 from convex.cpp:3:
/usr/include/gtk-1.2/gdk/gdktypes.h:215: Internal error: Segmentation fault.
Please submit a full bug report.
See <URL:https://qa.mandrakesoft.com/> for instructions.
make: *** [convex.o] Error 1
cp: cannot stat `cvisualmodule.so': No such file or directory


#####################run 3


MA Version 11.1.0
Properties Version 2.2
kinds Version 1.1
Numeric Version 21.0b1
g++ -I. -I./CXX/Include -I/usr/local/include/python2.2
-I/usr/local/include/python2.2/Numeric -I/usr/include/gtk-1.2
-I/usr/include/glib-1.2 -I/usr/lib/glib/include -D_REENTRANT
-I/usr/X11R6/include -w   -c -o convex.o convex.cpp
In file included from /usr/include/gtk-1.2/gdk/gdk.h:31,
                 from xgl.h:9,
                 from convex.cpp:3:
/usr/include/gtk-1.2/gdk/gdktypes.h:215: Internal error: Segmentation fault.
Please submit a full bug report.
See <URL:https://qa.mandrakesoft.com/> for instructions.
make: *** [convex.o] Error 1
cp: cannot stat `cvisualmodule.so': No such file or directory

#####################run 4

MA Version 11.1.0
Properties Version 2.2
kinds Version 1.1
Numeric Version 21.0b1
g++ -I. -I./CXX/Include -I/usr/local/include/python2.2
-I/usr/local/include/python2.2/Numeric -I/usr/include/gtk-1.2
-I/usr/include/glib-1.2 -I/usr/lib/glib/include -D_REENTRANT
-I/usr/X11R6/include -w   -c -o convex.o convex.cpp
In file included from /usr/include/g++-3/map:33,
                 from CXX/Include/CXX_Extensions.h:16,
                 from pvector.h:7,
                 from cvisual.h:6,
                 from display.h:5,
                 from arrprim.h:5,
                 from convex.cpp:2:
/usr/include/g++-3/stl_map.h:64: Internal error: Segmentation fault.
Please submit a full bug report.
See <URL:https://qa.mandrakesoft.com/> for instructions.
make: *** [convex.o] Error 1
cp: cannot stat `cvisualmodule.so': No such file or directory

[Visualpython-users] 3d editor?

[<Max...@t-...>]

Hello,=20

I'm quite new here,

i plan to use vpython to display non standard polygon objects like for =
example a spaceship, or a car etc.
do you know of any easy to use 3d editor in which i can create such =
things (doesn't have to be that good:)) ?

I took a look at clayworks3d (version 2.5, a low poly editor =
www.clayworks) but i can't find out how to use it properly, for example =
i don't know how to create more complicated polys in that.

Thanks in advance,

Max

RE: [Visualpython-users] pixel plotting

[David S. <dsc...@vi...>]

Just in case anyone is interested in extending VPython to make it more
useful for drawing things such as Mandelbrot sets, I will suggest that
it might be more useful to add texture support (for example, a textured
plane object) than to add a point() or points() primitive.  VPython's
coordinate system and some lower level details will make it awkward to
draw an image on the screen using points (quite apart from the
performance issues).

For example:

p = plane( texture = array( (500,500,3), Float ) )

for x in range(500):
  for y in range(500):
    p.texture[x,y,:] = mandelbrot(x,y)

The coordinate system issue would still have to be addressed if you want
exact pixel results.

Dave

> -----Original Message-----
> From: vis...@li... 
> [mailto:vis...@li...] On 
> Behalf Of Bruce Sherwood
> Sent: Sunday, August 11, 2002 2:27 PM
> To: vpusers
> Cc: mi...@co...
> Subject: Re: [Visualpython-users] pixel plotting
> 
> 
> There are no pixel-oriented options in VPython. The only 
> thing you could do to paint a dot-oriented picture would be 
> to use tiny boxes (or better,
> faces) that tile the space.
> 
> The gdots option on the graph plot is a kludge which uses the 
> letter "o" from a font (and as a result doesn't work properly 
> on all platforms). The reason for this kludge is the need for 
> plotting a small circle on a graph whose x and y axes may 
> differ enormously (so that a ring object for example would 
> display as an ellipse).
> 
> There is no formal description of VPython routines, but the 
> online reference manual does attempt to list all attributes 
> of VPython objects. An exception is the graphing routine, 
> which probably should list all of the attributes of a graph 
> object, since occasionally it is useful to refer directly to 
> some of the VPython objects that graph.py uses. You might 
> like to just look at graph.py to see what's there. However, 
> this isn't a useful place to find something for pixel plotting.
> 
> Bruce Sherwood
> 
> ----- Original Message -----
> From: "Gregor Lingl" <gl...@ao...>
> To: "vpusers" <vis...@li...>
> Cc: <mi...@co...>
> Sent: Sunday, August 11, 2002 2:07 PM
> Subject: [Visualpython-users] pixel plotting
> 
> 
> > I've forwarded this message of LANEY MILLS originally sent
> > to tu...@py....
> > Laney, if you are using vpython heavily, have a look at this list!
> >
> > vis...@li...
> >
> > The vpython library has wonderful plotting routines.  One of them is
> gdots.
> >  Gdots plots points on a graph.  Although one can control 
> the color of 
> > the dots, one apparently cannot control the size of the dots.
> >
> > Suppose I wanted to write  Python program to create the Mandelbrot 
> > set, which has hundreds of thousands of dots.  One needs to plot 
> > individual pixels.
> >
> > Here are my two questions then:
> >
> > Is there a formal description of the various vpython 
> routines?  There 
> > is a wonderful tutor, but no formal description with list all the 
> > attributes ascribable to gdots.
> >
> > If gdots can't be made to plot individuals at a given (x,y) 
> point, is
> there
> > some other way to do it?
> >
> > Thanks
> >
> > Laney Mills
> 
> 
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf 
> _______________________________________________
> Visualpython-users mailing list 
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
> 

Re: [Visualpython-users] pixel plotting

[Bruce S. <bas...@un...>]

There are no pixel-oriented options in VPython. The only thing you could do
to paint a dot-oriented picture would be to use tiny boxes (or better,
faces) that tile the space.

The gdots option on the graph plot is a kludge which uses the letter "o"
from a font (and as a result doesn't work properly on all platforms). The
reason for this kludge is the need for plotting a small circle on a graph
whose x and y axes may differ enormously (so that a ring object for example
would display as an ellipse).

There is no formal description of VPython routines, but the online reference
manual does attempt to list all attributes of VPython objects. An exception
is the graphing routine, which probably should list all of the attributes of
a graph object, since occasionally it is useful to refer directly to some of
the VPython objects that graph.py uses. You might like to just look at
graph.py to see what's there. However, this isn't a useful place to find
something for pixel plotting.

Bruce Sherwood

----- Original Message -----
From: "Gregor Lingl" <gl...@ao...>
To: "vpusers" <vis...@li...>
Cc: <mi...@co...>
Sent: Sunday, August 11, 2002 2:07 PM
Subject: [Visualpython-users] pixel plotting


> I've forwarded this message of LANEY MILLS originally sent
> to tu...@py....
> Laney, if you are using vpython heavily, have a look at this list!
>
> vis...@li...
>
> The vpython library has wonderful plotting routines.  One of them is
gdots.
>  Gdots plots points on a graph.  Although one can control the color of the
> dots, one apparently cannot control the size of the dots.
>
> Suppose I wanted to write  Python program to create the Mandelbrot set,
> which has hundreds of thousands of dots.  One needs to plot individual
> pixels.
>
> Here are my two questions then:
>
> Is there a formal description of the various vpython routines?  There is a
> wonderful tutor, but no formal description with list all the attributes
> ascribable to gdots.
>
> If gdots can't be made to plot individuals at a given (x,y) point, is
there
> some other way to do it?
>
> Thanks
>
> Laney Mills

[Visualpython-users] pixel plotting

[Gregor L. <gl...@ao...>]

I've forwarded this message of LANEY MILLS originally sent
to tu...@py....
Laney, if you are using vpython heavily, have a look at this list!

vis...@li...

The vpython library has wonderful plotting routines.  One of them is gdots. 
 Gdots plots points on a graph.  Although one can control the color of the 
dots, one apparently cannot control the size of the dots.

Suppose I wanted to write  Python program to create the Mandelbrot set, 
which has hundreds of thousands of dots.  One needs to plot individual 
pixels.

Here are my two questions then:

Is there a formal description of the various vpython routines?  There is a 
wonderful tutor, but no formal description with list all the attributes 
ascribable to gdots.

If gdots can't be made to plot individuals at a given (x,y) point, is there 
some other way to do it?

Thanks


Laney Mills

Re: [Visualpython-users] problem compiling VPython

[Nguyen T. T. <ttn...@ph...>]

I think it's the problem of GCC31 because I used to be able to compile it=20
under GCC3.0.4. It looks like `random_access_iterator' is an extension unde=
r=20
GCC31, not in a standard header. That's why it is declared in=20
"/usr/include/g++-v31/ext/iterator" and=20
"/usr/include/g++-v31/backward/iterator.h", but is not declared
in "/usr/include/g++-v31/iterator".

The problem is that I don't know how to tell GCC31 to use extended header=20
files instead of standard header files when compiling.

Toan

On Thursday 08 August 2002 02:10 pm, you wrote:
> Hi again -
> thinking about it another question:
>
> The compiler failure could be a specialty of the Linux distribution I
> use - or an "interference" with the AMD Athlon processor.
> I've got an Athlon 650MHz, you seem to have an Athlon XP - according the
> compiler options in your screendump?!
>
> Am Mon, 2002-08-05 um 06.40 schrieb Nguyen The Toan:
> > Hi all, I get the following error compiling VPython:
> >
> > g++ -O3 -march=3Dathlon-xp -falign-functions=3D4 -funroll-loops
> > -fomit-frame-pointer -I. -I./CXX/Include -I/usr/local/include/python2.2
> > -I/usr/include/gtk-1.2 -I/usr/include/glib-1.2 -I/usr/lib/glib/include
> > -D_REENTRANT -I/usr/X11R6/include -w   -c -o arrow.o arrow.cpp
> > In file included from pvector.h:6,
> >                  from cvisual.h:6,
> >                  from display.h:5,
> >                  from prim.h:5,
> >                  from axial.h:5,
> >                  from arrow.cpp:1:
> > CXX/Include/CXX_Objects.h:968: no class template named
> > `random_access_iterator' in `std'
> > CXX/Include/CXX_Objects.h:1078: no class template named
> > `random_access_iterator' in `std'
> >
> >
> > I search /usr/include and found out that 'random_access_iterator' is
> > define in /usr/include/g++-v31/ext/iterator,
> > /usr/include/g++-v31/backward/iterator.h However, #include them directly
> > in cvisual/CXX/Include/CXX_Objects.h doesn't help. Any idea what should=
 I
> > do?
> >
> > Thanks.
> >
> >
> > -------------------------------------------------------
> > This sf.net email is sponsored by:ThinkGeek
> > Welcome to geek heaven.
> > http://thinkgeek.com/sf
> > _______________________________________________
> > Visualpython-users mailing list
> > Vis...@li...
> > https://lists.sourceforge.net/lists/listinfo/visualpython-users

[Visualpython-users] problem compiling VPython

[Nguyen T. T. <ttn...@ph...>]

Hi all, I get the following error compiling VPython:

g++ -O3 -march=3Dathlon-xp -falign-functions=3D4 -funroll-loops=20
=2Dfomit-frame-pointer -I. -I./CXX/Include -I/usr/local/include/python2.2 =
=20
=2DI/usr/include/gtk-1.2 -I/usr/include/glib-1.2 -I/usr/lib/glib/include=20
=2DD_REENTRANT -I/usr/X11R6/include -w   -c -o arrow.o arrow.cpp
In file included from pvector.h:6,
                 from cvisual.h:6,
                 from display.h:5,
                 from prim.h:5,
                 from axial.h:5,
                 from arrow.cpp:1:
CXX/Include/CXX_Objects.h:968: no class template named=20
`random_access_iterator' in `std'
CXX/Include/CXX_Objects.h:1078: no class template named=20
`random_access_iterator' in `std'


I search /usr/include and found out that 'random_access_iterator' is define=
 in=20
/usr/include/g++-v31/ext/iterator, /usr/include/g++-v31/backward/iterator.h
However, #include them directly in cvisual/CXX/Include/CXX_Objects.h doesn'=
t=20
help. Any idea what should I do?

Thanks.

RE: [Visualpython-users] Frames in User Created Classes...

[David S. <dsc...@vi...>]

Changing the axis of the frame shouldn't do much (anything) to a sphere
at the origin of the frame.  Try a cylinder() instead to see what is
happening.

Do you have a specific piece of code that doesn't work?

Dave

> -----Original Message-----
> From: vis...@li... 
> [mailto:vis...@li...] On 
> Behalf Of IVES,THOM (HP-Boise,ex1)
> Sent: Friday, August 02, 2002 10:47 AM
> To: vpusers
> Subject: RE: [Visualpython-users] Frames in User Created Classes...
> 
> 
> Dave's steps do run without error in my case, but when I try 
> to reorient with f.axis = (new axis tuple) I get no movement. 
> I am still wondering if there is some special steps I need to 
> take within the class that I am creating.
> 
> Thom
> 
> -----Original Message-----
> From: Bruce Sherwood [mailto:bas...@un...]
> Sent: Friday, August 02, 2002 6:57 AM
> To: vpusers
> Subject: Fw: [Visualpython-users] Frames in User Created Classes...
> 
> 
> Oops! I stand corrected. You can indeed assign an existing 
> object to a frame. Thanks, Dave!
> 
> ----- Original Message -----
> From: "Dave Scherer" <da...@vi...>
> To: <bas...@un...>
> Sent: Friday, August 02, 2002 8:33 AM
> Subject: Re: [Visualpython-users] Frames in User Created Classes...
> 
> 
> > Yes there is!
> >
> > s = sphere()
> > f = frame()
> > s.frame=f
> > f.pos=(2,0,0)
> >
> > Sphere displays at X=2.
> >
> > Dave
> >
> 
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf 
> _______________________________________________
> Visualpython-users mailing list 
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf 
> _______________________________________________
> Visualpython-users mailing list 
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
> 

RE: [Visualpython-users] Frames in User Created Classes...

[IVES,THOM (HP-Boise,ex1) <tho...@hp...>]

Dave's steps do run without error in my case, but when I try to reorient
with f.axis = (new axis tuple) I get no movement. I am still wondering if
there is some special steps I need to take within the class that I am
creating.

Thom

-----Original Message-----
From: Bruce Sherwood [mailto:bas...@un...]
Sent: Friday, August 02, 2002 6:57 AM
To: vpusers
Subject: Fw: [Visualpython-users] Frames in User Created Classes...


Oops! I stand corrected. You can indeed assign an existing object to a
frame. Thanks, Dave!

----- Original Message -----
From: "Dave Scherer" <da...@vi...>
To: <bas...@un...>
Sent: Friday, August 02, 2002 8:33 AM
Subject: Re: [Visualpython-users] Frames in User Created Classes...


> Yes there is!
>
> s = sphere()
> f = frame()
> s.frame=f
> f.pos=(2,0,0)
>
> Sphere displays at X=2.
>
> Dave
>



-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
Visualpython-users mailing list
Vis...@li...
https://lists.sourceforge.net/lists/listinfo/visualpython-users

RE: [Visualpython-users] Frames in User Created Classes...

[IVES,THOM (HP-Boise,ex1) <tho...@hp...>]

Bruce's answer begins to answer my question in part, but I need to know how,
in the user-created-class itself, you get the objects to become part of the
overall frame. In the pre-existing classes, one simply puts frame =
"framename" in the creation line for the object. What statements must be put
in a user created class to add the object to the "framename" frame?

Thom

-----Original Message-----
From: Bruce Sherwood [mailto:bas...@un...]
Sent: Thursday, August 01, 2002 8:09 PM
To: IVES,THOM (HP-Boise,ex1); Visual Python Users (E-mail)
Subject: Re: [Visualpython-users] Frames in User Created Classes...


There isn't a way in Visual to move an existing object into a frame. You
have to create the object in the desired frame. So your "3" has to come
first, I believe. This is true for Visual's built-in objects, and would be
true for yours as well, presumably.

Bruce Sherwood

----- Original Message -----
From: "IVES,THOM (HP-Boise,ex1)" <tho...@hp...>
To: "Visual Python Users (E-mail)"
<vis...@li...>
Sent: Thursday, August 01, 2002 2:40 PM
Subject: [Visualpython-users] Frames in User Created Classes...


> Does anyone have experience with the following:
>
> 1) You have created a new class for visual python using faces to draw new
> shaped objects.
>
> 2) You write a program that creates several instances of these objects.
>
> 3) You now want to add all of these instances to a common frame.
>
> How do you set up the classes in 1) such that the objects in 2) will all
be
> part of this same frame proposed in 3)?
>
> Thom
>
> Thom Ives
> Work: HP, PSB, 11413 Chinden Blvd. MS 400, Boise, ID 83714
>         Voice: (208) 396-6880, Fax: (413) 332-6558
>         E-mail: tho...@hp...
> Home:   5556 N Columbine Pl., Boise, ID 83713
>         Voice: (208) 938-9357
>         E-mail: tw...@bi...
>
>
>

Fw: [Visualpython-users] Frames in User Created Classes...

[Bruce S. <bas...@un...>]

Oops! I stand corrected. You can indeed assign an existing object to a
frame. Thanks, Dave!

----- Original Message -----
From: "Dave Scherer" <da...@vi...>
To: <bas...@un...>
Sent: Friday, August 02, 2002 8:33 AM
Subject: Re: [Visualpython-users] Frames in User Created Classes...


> Yes there is!
>
> s = sphere()
> f = frame()
> s.frame=f
> f.pos=(2,0,0)
>
> Sphere displays at X=2.
>
> Dave
>

Re: [Visualpython-users] Frames in User Created Classes...

[Bruce S. <bas...@un...>]

There isn't a way in Visual to move an existing object into a frame. You
have to create the object in the desired frame. So your "3" has to come
first, I believe. This is true for Visual's built-in objects, and would be
true for yours as well, presumably.

Bruce Sherwood

----- Original Message -----
From: "IVES,THOM (HP-Boise,ex1)" <tho...@hp...>
To: "Visual Python Users (E-mail)"
<vis...@li...>
Sent: Thursday, August 01, 2002 2:40 PM
Subject: [Visualpython-users] Frames in User Created Classes...


> Does anyone have experience with the following:
>
> 1) You have created a new class for visual python using faces to draw new
> shaped objects.
>
> 2) You write a program that creates several instances of these objects.
>
> 3) You now want to add all of these instances to a common frame.
>
> How do you set up the classes in 1) such that the objects in 2) will all
be
> part of this same frame proposed in 3)?
>
> Thom
>
> Thom Ives
> Work: HP, PSB, 11413 Chinden Blvd. MS 400, Boise, ID 83714
>         Voice: (208) 396-6880, Fax: (413) 332-6558
>         E-mail: tho...@hp...
> Home:   5556 N Columbine Pl., Boise, ID 83713
>         Voice: (208) 938-9357
>         E-mail: tw...@bi...
>
>
>

[Visualpython-users] Frames in User Created Classes...

[IVES,THOM (HP-Boise,ex1) <tho...@hp...>]

Does anyone have experience with the following:
 
1) You have created a new class for visual python using faces to draw new
shaped objects.
 
2) You write a program that creates several instances of these objects.
 
3) You now want to add all of these instances to a common frame.
 
How do you set up the classes in 1) such that the objects in 2) will all be
part of this same frame proposed in 3)?
 
Thom

Thom Ives
Work: HP, PSB, 11413 Chinden Blvd. MS 400, Boise, ID 83714
        Voice: (208) 396-6880, Fax: (413) 332-6558
        E-mail: tho...@hp...
Home:   5556 N Columbine Pl., Boise, ID 83713
        Voice: (208) 938-9357
        E-mail: tw...@bi... 

 

Re: [Visualpython-users] animation

[<Do...@ao...>]

Sorry, I have been busy this weekend.

I'll have to go back in the morning and check my notes, but the approaches 
mentioned do not sound like what I did.  I believe I just copied stuff into 
the libs and dll directories within my Python22 directory.

I sort of asked a question in my original post that I have not seens 
addressed.  Has anyone done a VPython install on top of the Pythonworks 
distribution, i.e. the one that goes in the py22 directory by defualt, rather 
than the "standard" Python distro?  If I were not so beat, I might try it 
tonight...

Wayne Keen

Re: [Visualpython-users] animation

[Bruce S. <bas...@un...>]

For those of you interested in using the Python Image Library (PIL), Bruce
Peterson offers some information on its installation:

----- Original Message -----
From: "Bruce Peterson" <bap...@te...>
To: "Bruce Sherwood" <bas...@un...>
Sent: Saturday, July 27, 2002 12:47 AM
Subject: Re: [Visualpython-users] animation


> I ran into that too. The PIL installation puts an environment file PIL.pth
> in the site-packages directory. This file points to the PIL files being in
> the PIL directory (under site-packages). However the files are actually
one
> layer deeper in PIL-DLLs and PIL-Pycode. You can either modify the PIL.pth
> file or copy the dlls and pycode into the PIL directory.
>
> At 10:41 PM 7/26/2002 -0400, you wrote:
> >Where did you put the PIL files? I tried putting them in
> >C:\Python22\Lib\site-packages (and some other places in Python22), but
when
> >I tried to run a PIL demo I got an error message that a PIL module
couldn't
> >be found.
> >
> >Bruce Sherwood
> >

Re: [Visualpython-users] animation

[Bruce S. <bas...@un...>]

Where did you put the PIL files? I tried putting them in
C:\Python22\Lib\site-packages (and some other places in Python22), but when
I tried to run a PIL demo I got an error message that a PIL module couldn't
be found.

Bruce Sherwood

----- Original Message -----
From: <Do...@ao...>
To: <js...@so...>; <bas...@un...>;
<bap...@te...>; <vis...@li...>
Sent: Friday, July 26, 2002 10:09 PM
Subject: Re: [Visualpython-users] animation


> Yes, I have used the Python Imaging Library to translate some binary image
> files into JPEG and vice versa.  I have still had to use another tool
after
> to stitch them together for a movie.  I realize this may not QUITE be what
> everyone would like, but it was what I needed/need.
>
> I don't know if the way I got PIL working is quite standard.  The PIL
install
> more or less assumes that you are using the PythonWorks version of Python.
> So I ended up moving stuff from the directory it installed in into my
> "regular" Python directory.
>
> I am curious, has someone installed VPython over a PythonWorks
installation,
> rather than the "by the book" install over the standard Python release?
>
> If you want, I will get the code I mentioned above for tranlating the data
> arrays into JPEG and vice versa off my laptop and post. (At least, as long
as
> I can do JPEG stuff without royalties)  :-)
>
> Wayne Keen
>

Re: [Visualpython-users] animation

[<Do...@ao...>]

Yes, I have used the Python Imaging Library to translate some binary image 
files into JPEG and vice versa.  I have still had to use another tool after 
to stitch them together for a movie.  I realize this may not QUITE be what 
everyone would like, but it was what I needed/need.

I don't know if the way I got PIL working is quite standard.  The PIL install 
more or less assumes that you are using the PythonWorks version of Python.  
So I ended up moving stuff from the directory it installed in into my 
"regular" Python directory.

I am curious, has someone installed VPython over a PythonWorks installation, 
rather than the "by the book" install over the standard Python release?

If you want, I will get the code I mentioned above for tranlating the data 
arrays into JPEG and vice versa off my laptop and post. (At least, as long as 
I can do JPEG stuff without royalties)  :-)

Wayne Keen 

[Visualpython-users] smoother faster tube

[Bruce S. <bas...@un...>]

Attached is tube_smooth.py, which is significantly faster still, thanks to
being able to get attractive cylinders with only 25 sides (which is what I
found that Visual uses for cylinders) by smoothing the shading. The trick is
to choose normals not to the faces but to interpolate the normals between
adjacent faces.

Bruce Sherwood