visualpython-users

[Visualpython-users] License

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

I'm not sure to what you're referring. Here is the most recent text of
license.txt, which is included in the "visual" folder in site-packages on
all platforms. Note the recent modification with respect to the Polygon
module, which is used by the new 3D text object:

The Visual library is Copyright (c) 2000, 2001, 2002, 2003, 2004,
and 2005 by David Scherer and others.  See authors.txt for a
complete list of contributors.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation, and that the names of the authors may not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.

THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
USE OR PERFORMANCE OF THIS SOFTWARE.

---------------------------------------------------------------------
The following copyright notice applies to the Polygon module distributed
with Visual for the convenience of our users under the following terms:

"This distribution contains code from the GPC Library, and/or code
resulting from the use of the GPC Library. This usage has been
authorized by The University of Manchester, on the understanding
that the GPC-related features are used only in the context of this
distribution. It is not permitted to extract the GPC code from the
distribution as the basis for commercial exploitation, unless a
GPC Commercial Use Licence is obtained from The University of
Manchester, contact: http://www.cs.man.ac.uk/~toby/gpc/".

---------------------------------------------------------------------
The following copyright notice applies to the files src/num_util* and
include/num_util* which are distributed with Visual for the convenience of
our users under the following terms:

num_util is Copyright (c) 2003 by Rhys Goldstein, Chris Seymour and
Phil Austin.

Boost Software License - Version 1.0 - August 17th, 2003

Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:

The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.


On Wed, Jun 16, 2010 at 6:39 PM, Thomas Spura <to...@fe...>
wrote:

> Hi list,
>
> there are some notes, that show, that the primitives implementation
> from GPC is nonfree (no GPL etc.), but I could not find something about
> this in the sources.
>
> Was it removed?
>
> Could you please update that section, to either remove what's not
> applicaple anymore or clarify where it's to find?
>
> Thanks,
>  Thomas

Re: [Visualpython-users] License

[Thomas S. <to...@fe...>]

Am Thu, 17 Jun 2010 11:18:48 -0600
schrieb Bruce Sherwood <bas...@nc...>:

> I'm not sure to what you're referring. 

To this part of the license:

[snip]

> ---------------------------------------------------------------------
> The following copyright notice applies to the Polygon module
> distributed with Visual for the convenience of our users under the
> following terms:
> 
> "This distribution contains code from the GPC Library, and/or code
> resulting from the use of the GPC Library. This usage has been
> authorized by The University of Manchester, on the understanding
> that the GPC-related features are used only in the context of this
> distribution. It is not permitted to extract the GPC code from the
> distribution as the basis for commercial exploitation, unless a
> GPC Commercial Use Licence is obtained from The University of
> Manchester, contact: http://www.cs.man.ac.uk/~toby/gpc/".
> 
> ---------------------------------------------------------------------

This sounds highly 'non free' and therefor needs to go through the
legal team from redhat at least.

But after looking thought the sources, I didn't found, where the
polygon module exactly is... Should be somewhere under
site-packages/visual/*, but the only thing I found was
in ./site-packages/visual/primitives.py:
'import Polygon'.

So where is it?

Grepping for "GPC" also brings no results, so at least there will be a
comment missing about the license, if this polygon modules is still
included...

	Thomas

Re: [Visualpython-users] License

[C A. R. <an...@ex...>]

On Thu, Jun 17, 2010 at 5:50 PM, Thomas Spura <to...@fe...> wrote:
> Am Thu, 17 Jun 2010 11:18:48 -0600
> schrieb Bruce Sherwood <bas...@nc...>:
>
>> I'm not sure to what you're referring.
>
> To this part of the license:
>
> [snip]
>
>> ---------------------------------------------------------------------
>> The following copyright notice applies to the Polygon module
>> distributed with Visual for the convenience of our users under the
>> following terms:
>>
>> "This distribution contains code from the GPC Library, and/or code
>> resulting from the use of the GPC Library. This usage has been
>> authorized by The University of Manchester, on the understanding
>> that the GPC-related features are used only in the context of this
>> distribution. It is not permitted to extract the GPC code from the
>> distribution as the basis for commercial exploitation, unless a
>> GPC Commercial Use Licence is obtained from The University of
>> Manchester, contact: http://www.cs.man.ac.uk/~toby/gpc/".
>>
>> ---------------------------------------------------------------------
>
> This sounds highly 'non free' and therefor needs to go through the
> legal team from redhat at least.
>
> But after looking thought the sources, I didn't found, where the
> polygon module exactly is... Should be somewhere under
> site-packages/visual/*, but the only thing I found was
> in ./site-packages/visual/primitives.py:
> 'import Polygon'.
>
> So where is it?
>
> Grepping for "GPC" also brings no results, so at least there will be a
> comment missing about the license, if this polygon modules is still
> included...
>
>        Thomas

the language, to me at least, sounds like you are permitted to do
whatever you'd like with visual itself, as a package/platform.

"It is not permitted to extract the GPC code from the distribution as
the basis for commercial exploitation"

thus, you can't pull the GPC bits out exclusively and use them to
spearhead a commercial product, but that doesn't mean you can't use
visual as a platform in a commercial project.  at least that's how i
understand it.

Re: [Visualpython-users] License

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

I guess the confusion is that in the case of the Windows and Mac installers,
the modules are included in the VPython installers. On the Linux download
page at vpython.org you will see "In support of the 3D text object, you will
need to install the font-handling modules FontTools, ttfquery (version 1.0.4
or later), and Polygon (all available from pypi.python.org), for which the
following conditions apply:" followed by an extract from the Visual
license.

Also, in INSTALL.txt included in the Visual tarball you will see "For Visual
5.3 and later, you need the Python modules FontTools, ttfquery, and
Polygon. Be sure to get ttfquery 1.0.4 or later." This is followed by the
specific information about Polygon.

If you don't install these components on Linux the new text object won't
work.

Hope this helps.

Bruce Sherwood

On Thu, Jun 17, 2010 at 4:50 PM, Thomas Spura <to...@fe...>wrote:

> Am Thu, 17 Jun 2010 11:18:48 -0600
> schrieb Bruce Sherwood <bas...@nc...>:
>
> > I'm not sure to what you're referring.
>
> To this part of the license:
>
> [snip]
>
> > ---------------------------------------------------------------------
> > The following copyright notice applies to the Polygon module
> > distributed with Visual for the convenience of our users under the
> > following terms:
> >
> > "This distribution contains code from the GPC Library, and/or code
> > resulting from the use of the GPC Library. This usage has been
> > authorized by The University of Manchester, on the understanding
> > that the GPC-related features are used only in the context of this
> > distribution. It is not permitted to extract the GPC code from the
> > distribution as the basis for commercial exploitation, unless a
> > GPC Commercial Use Licence is obtained from The University of
> > Manchester, contact: http://www.cs.man.ac.uk/~toby/gpc/".
> >
> > ---------------------------------------------------------------------
>
> This sounds highly 'non free' and therefor needs to go through the
> legal team from redhat at least.
>
> But after looking thought the sources, I didn't found, where the
> polygon module exactly is... Should be somewhere under
> site-packages/visual/*, but the only thing I found was
> in ./site-packages/visual/primitives.py:
> 'import Polygon'.
>
> So where is it?
>
> Grepping for "GPC" also brings no results, so at least there will be a
> comment missing about the license, if this polygon modules is still
> included...
>
>        Thomas
>
>
> ------------------------------------------------------------------------------
> ThinkGeek and WIRED's GeekDad team up for the Ultimate
> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the
> lucky parental unit.  See the prize list and enter to win:
> http://p.sf.net/sfu/thinkgeek-promo
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>

Re: [Visualpython-users] License

[Baozhi C. <bc...@gm...>]

I have installed these font and polygon packages. The text examples
with vpython 5.32 work but the text object cannot appear
in my program. I wonder if it is due to the graphics driver or not.

On Thu, Jun 17, 2010 at 8:37 PM, Bruce Sherwood <bas...@nc...> wrote:
> I guess the confusion is that in the case of the Windows and Mac installers,
> the modules are included in the VPython installers. On the Linux download
> page at vpython.org you will see "In support of the 3D text object, you will
> need to install the font-handling modules FontTools, ttfquery (version 1.0.4
> or later), and Polygon (all available from pypi.python.org), for which the
> following conditions apply:" followed by an extract from the Visual
> license.
> Also, in INSTALL.txt included in the Visual tarball you will see "For Visual
> 5.3 and later, you need the Python modules FontTools, ttfquery, and
> Polygon. Be sure to get ttfquery 1.0.4 or later." This is followed by the
> specific information about Polygon.
> If you don't install these components on Linux the new text object won't
> work.
> Hope this helps.
> Bruce Sherwood
> On Thu, Jun 17, 2010 at 4:50 PM, Thomas Spura <to...@fe...>
> wrote:
>>
>> Am Thu, 17 Jun 2010 11:18:48 -0600
>> schrieb Bruce Sherwood <bas...@nc...>:
>>
>> > I'm not sure to what you're referring.
>>
>> To this part of the license:
>>
>> [snip]
>>
>> > ---------------------------------------------------------------------
>> > The following copyright notice applies to the Polygon module
>> > distributed with Visual for the convenience of our users under the
>> > following terms:
>> >
>> > "This distribution contains code from the GPC Library, and/or code
>> > resulting from the use of the GPC Library. This usage has been
>> > authorized by The University of Manchester, on the understanding
>> > that the GPC-related features are used only in the context of this
>> > distribution. It is not permitted to extract the GPC code from the
>> > distribution as the basis for commercial exploitation, unless a
>> > GPC Commercial Use Licence is obtained from The University of
>> > Manchester, contact: http://www.cs.man.ac.uk/~toby/gpc/".
>> >
>> > ---------------------------------------------------------------------
>>
>> This sounds highly 'non free' and therefor needs to go through the
>> legal team from redhat at least.
>>
>> But after looking thought the sources, I didn't found, where the
>> polygon module exactly is... Should be somewhere under
>> site-packages/visual/*, but the only thing I found was
>> in ./site-packages/visual/primitives.py:
>> 'import Polygon'.
>>
>> So where is it?
>>
>> Grepping for "GPC" also brings no results, so at least there will be a
>> comment missing about the license, if this polygon modules is still
>> included...
>>
>>        Thomas
>>
>>
>> ------------------------------------------------------------------------------
>> ThinkGeek and WIRED's GeekDad team up for the Ultimate
>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the
>> lucky parental unit.  See the prize list and enter to win:
>> http://p.sf.net/sfu/thinkgeek-promo
>> _______________________________________________
>> Visualpython-users mailing list
>> Vis...@li...
>> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>
>
> ------------------------------------------------------------------------------
> ThinkGeek and WIRED's GeekDad team up for the Ultimate
> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the
> lucky parental unit.  See the prize list and enter to win:
> http://p.sf.net/sfu/thinkgeek-promo
> _______________________________________________
> Visualpython-users mailing list
> Vis...@li...
> https://lists.sourceforge.net/lists/listinfo/visualpython-users
>
>

Re: [Visualpython-users] License

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

What "text examples" work? There shouldn't be a difference between a text
object in an example program and a text object in your own program.

Bruce Sherwood

On Thu, Jun 17, 2010 at 7:43 PM, Baozhi Chen <bc...@gm...> wrote:

> I have installed these font and polygon packages. The text examples
> with vpython 5.32 work but the text object cannot appear
> in my program. I wonder if it is due to the graphics driver or not.
>
>