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| Users that have a GPL version of Qt® are granted the following
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| allowances with regard to the open source ParaView development project.
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| # Users can compile ParaView.
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| # Users can modify ParaView.
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| # Users can submit Qt® interface patches to the development team.
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| Users that have a GPL version of Qt® will NOT be allowed any "write
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| access" to the GUI/Qt directory. That directory is currently access
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| list controlled, if you have a commercial Qt license (which we
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| encourage you to get) please contact us and we'll provide you with
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| write access. For information about purchasing a Qt® license, please
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| visit http://www.trolltech.com.
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| Disclaimer: Trolltech is a registered trademark of Trolltech AS.
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| Hi Folks,
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| There has been a few questions about the future of ParaView both on the
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| mailing list and sent to me directly. I would like to take this opportunity
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| to clarify a few things.
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| The ParaView team made the decision of developing the next generation of
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| ParaView's user interface using Qt. This decision is purely technical and
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| does not in any way imply a change in our open source approach. ParaView's
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| license is still BSD-style. I am attaching, to the bottom of this message,
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| a version of the license. Some files may have different license text but
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| the spirit is the same. This is the license of ALL of ParaView. The code
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| that depends on Qt has the same license.
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| What does the adoption of Qt mean to users? Beyond having a nicer and
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| better GUI, nothing. We will provide binaries on Windows, Linux and
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| Mac. You will be able to build ParaView from source using GPL'ed Qt on
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| other platforms. If you need to recompile to enable MPI support, you will
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| only have to compile the server and you won't need Qt.
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| What does the adoption of Qt mean for developers? I added the following
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| text to the ParaView Wiki:
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| Users that have a GPL version of Qt are granted the following allowances
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| with regard to the open source ParaView development project.
| |
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| # Users can compile ParaView.
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| # Users can modify ParaView.
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| # Users can submit Qt interface patches to the development team.
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| Users that have a GPL version of Qt will NOT be allowed any "write access"
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| to the GUI/Qt directory. That directory is currently access list
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| controlled, if you have a commercial Qt license (which we encourage you to
| |
| get) please contact us and we'll provide you with write access. For
| |
| information about purchasing a Qt license, please visit
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| http://www.trolltech.com.
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| Qt has two licenses: GPL and commercial. We use the commercial license to
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| develop ParaView's UI. Normally, any code developed using the GPL'ed
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| version of Qt has to be GPL'ed. Incorporating such code into our source
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| base would introduce files of a different and more restrictive license into
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| the ParaView repository. We do not want this to happen. The BSD license is
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| more liberal than GPL and does not spread to the code that uses it. We want
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| the ParaView source base to remain this way. To make our lives easier,
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| Trolltech made an exception in this case. They allow us to incorporate
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| patches developed using the GPL'ed version of Qt without changing our
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| existing license. So, if you fix a bug using the GPL'ed Qt, you can submit
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| a patch to us and we will incorporate it.
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| If you are a serious ParaView developer and you need write access to the
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| ParaView repository, you have two choices:
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| 1. You buy a Qt license and you can have write access to the whole repository.
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| 2. You use GPL'ed Qt and you cannot have write access to any directory that has code that depends on Qt.
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| If you do not want to contribute your (GUI) code back and want to use it
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| internally, you can use GPL'ed Qt. If you intend to build a commercial
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| application on top of ParaView and you want to distribute your own GUI
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| binaries, you would have to get a commercial Qt license.
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| Please note that we have clearly separated ParaView's engine and python
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| interface from the user interface code. So you can develop and have write
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| access to all of that without needing a commercial Qt license. "All of
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| that" includes VTK, server manager and the python interface.
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| -Berk Geveci<br/>
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| ParaView Technical Lead<br/>
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| Kitware Inc.<br/>
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| Excerpt from ParaView License:
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| <pre>
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| Redistribution and use in source and binary forms, with or without
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| modification, are permitted provided that the following conditions are
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| met:
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| * Redistributions of source code must retain the above copyright
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| notice, this list of conditions and the following disclaimer.
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| * Redistributions in binary form must reproduce the above copyright
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| notice, this list of conditions and the following disclaimer in the
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| documentation and/or other materials provided with the
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| distribution.
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| * Neither the name of Kitware nor the names of any contributors may
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| be used to endorse or promote products derived from this software
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| without specific prior written permission.
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| * Modified source versions must be plainly marked as such, and must
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| not be misrepresented as being the original software.
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| </pre> | |
