root/OpenSceneGraph/trunk/LICENSE.txt @ 10015

Revision 10015, 29.1 kB (checked in by robert, 5 years ago)

From J.P. Delport, tweak to fix spelling and grammer

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
Line 
1                OpenSceneGraph Public License, Version 0.0
2                ==========================================
3               
4  Copyright (C) 2002 Robert Osfield.
5 
6  Everyone is permitted to copy and distribute verbatim copies
7  of this licence document, but changing it is not allowed.
8
9                       OPENSCENEGRAPH PUBLIC LICENCE
10     TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
11
12  This library is free software; you can redistribute it and/or modify it
13  under the terms of the OpenSceneGraph Public License (OSGPL) version 0.0
14  or later.
15 
16  Notes: the OSGPL is based on the LGPL, with the 4 exceptions laid
17  out in the wxWindows section below.  The LGPL is contained in the
18  final section of this license.
19
20
21-------------------------------------------------------------------------------
22
23                wxWindows Library Licence, Version 3
24                ====================================
25
26  Copyright (C) 1998 Julian Smart, Robert Roebling [, ...]
27
28  Everyone is permitted to copy and distribute verbatim copies
29  of this licence document, but changing it is not allowed.
30
31                       WXWINDOWS LIBRARY LICENCE
32     TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
33
34  This library is free software; you can redistribute it and/or modify it
35  under the terms of the GNU Library General Public Licence as published by
36  the Free Software Foundation; either version 2 of the Licence, or (at
37  your option) any later version.
38
39  This library is distributed in the hope that it will be useful, but
40  WITHOUT ANY WARRANTY; without even the implied warranty of
41  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library
42  General Public Licence for more details.
43
44  You should have received a copy of the GNU Library General Public Licence
45  along with this software, usually in a file named COPYING.LIB.  If not,
46  write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
47  Boston, MA 02111-1307 USA.
48
49  EXCEPTION NOTICE
50
51  1. As a special exception, the copyright holders of this library give
52  permission for additional uses of the text contained in this release of
53  the library as licenced under the wxWindows Library Licence, applying
54  either version 3 of the Licence, or (at your option) any later version of
55  the Licence as published by the copyright holders of version 3 of the
56  Licence document.
57
58  2. The exception is that you may use, copy, link, modify and distribute
59  under the user's own terms, binary object code versions of works based
60  on the Library.
61
62  3. If you copy code from files distributed under the terms of the GNU
63  General Public Licence or the GNU Library General Public Licence into a
64  copy of this library, as this licence permits, the exception does not
65  apply to the code that you add in this way.  To avoid misleading anyone as
66  to the status of such modified files, you must delete this exception
67  notice from such code and/or adjust the licensing conditions notice
68  accordingly.
69
70  4. If you write modifications of your own for this library, it is your
71  choice whether to permit this exception to apply to your modifications.
72  If you do not wish that, you must delete the exception notice from such
73  code and/or adjust the licensing conditions notice accordingly.
74 
75 
76------------------------------------------------------------------------------
77                  GNU LESSER GENERAL PUBLIC LICENSE
78                       Version 2.1, February 1999
79
80 Copyright (C) 1991, 1999 Free Software Foundation, Inc.
81 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
82 Everyone is permitted to copy and distribute verbatim copies
83 of this license document, but changing it is not allowed.
84
85[This is the first released version of the Lesser GPL.  It also counts
86 as the successor of the GNU Library Public License, version 2, hence
87 the version number 2.1.]
88
89                            Preamble
90
91  The licenses for most software are designed to take away your
92freedom to share and change it.  By contrast, the GNU General Public
93Licenses are intended to guarantee your freedom to share and change
94free software--to make sure the software is free for all its users.
95
96  This license, the Lesser General Public License, applies to some
97specially designated software packages--typically libraries--of the
98Free Software Foundation and other authors who decide to use it.  You
99can use it too, but we suggest you first think carefully about whether
100this license or the ordinary General Public License is the better
101strategy to use in any particular case, based on the explanations below.
102
103  When we speak of free software, we are referring to freedom of use,
104not price.  Our General Public Licenses are designed to make sure that
105you have the freedom to distribute copies of free software (and charge
106for this service if you wish); that you receive source code or can get
107it if you want it; that you can change the software and use pieces of
108it in new free programs; and that you are informed that you can do
109these things.
110
111  To protect your rights, we need to make restrictions that forbid
112distributors to deny you these rights or to ask you to surrender these
113rights.  These restrictions translate to certain responsibilities for
114you if you distribute copies of the library or if you modify it.
115
116  For example, if you distribute copies of the library, whether gratis
117or for a fee, you must give the recipients all the rights that we gave
118you.  You must make sure that they, too, receive or can get the source
119code.  If you link other code with the library, you must provide
120complete object files to the recipients, so that they can relink them
121with the library after making changes to the library and recompiling
122it.  And you must show them these terms so they know their rights.
123
124  We protect your rights with a two-step method: (1) we copyright the
125library, and (2) we offer you this license, which gives you legal
126permission to copy, distribute and/or modify the library.
127
128  To protect each distributor, we want to make it very clear that
129there is no warranty for the free library.  Also, if the library is
130modified by someone else and passed on, the recipients should know
131that what they have is not the original version, so that the original
132author's reputation will not be affected by problems that might be
133introduced by others.
134
135  Finally, software patents pose a constant threat to the existence of
136any free program.  We wish to make sure that a company cannot
137effectively restrict the users of a free program by obtaining a
138restrictive license from a patent holder.  Therefore, we insist that
139any patent license obtained for a version of the library must be
140consistent with the full freedom of use specified in this license.
141
142  Most GNU software, including some libraries, is covered by the
143ordinary GNU General Public License.  This license, the GNU Lesser
144General Public License, applies to certain designated libraries, and
145is quite different from the ordinary General Public License.  We use
146this license for certain libraries in order to permit linking those
147libraries into non-free programs.
148
149  When a program is linked with a library, whether statically or using
150a shared library, the combination of the two is legally speaking a
151combined work, a derivative of the original library.  The ordinary
152General Public License therefore permits such linking only if the
153entire combination fits its criteria of freedom.  The Lesser General
154Public License permits more lax criteria for linking other code with
155the library.
156
157  We call this license the "Lesser" General Public License because it
158does Less to protect the user's freedom than the ordinary General
159Public License.  It also provides other free software developers Less
160of an advantage over competing non-free programs.  These disadvantages
161are the reason we use the ordinary General Public License for many
162libraries.  However, the Lesser license provides advantages in certain
163special circumstances.
164
165  For example, on rare occasions, there may be a special need to
166encourage the widest possible use of a certain library, so that it becomes
167a de-facto standard.  To achieve this, non-free programs must be
168allowed to use the library.  A more frequent case is that a free
169library does the same job as widely used non-free libraries.  In this
170case, there is little to gain by limiting the free library to free
171software only, so we use the Lesser General Public License.
172
173  In other cases, permission to use a particular library in non-free
174programs enables a greater number of people to use a large body of
175free software.  For example, permission to use the GNU C Library in
176non-free programs enables many more people to use the whole GNU
177operating system, as well as its variant, the GNU/Linux operating
178system.
179
180  Although the Lesser General Public License is Less protective of the
181users' freedom, it does ensure that the user of a program that is
182linked with the Library has the freedom and the wherewithal to run
183that program using a modified version of the Library.
184
185  The precise terms and conditions for copying, distribution and
186modification follow.  Pay close attention to the difference between a
187"work based on the library" and a "work that uses the library".  The
188former contains code derived from the library, whereas the latter must
189be combined with the library in order to run.
190
191          GNU LESSER GENERAL PUBLIC LICENSE
192   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
193
194  0. This License Agreement applies to any software library or other
195program which contains a notice placed by the copyright holder or
196other authorized party saying it may be distributed under the terms of
197this Lesser General Public License (also called "this License").
198Each licensee is addressed as "you".
199
200  A "library" means a collection of software functions and/or data
201prepared so as to be conveniently linked with application programs
202(which use some of those functions and data) to form executables.
203
204  The "Library", below, refers to any such software library or work
205which has been distributed under these terms.  A "work based on the
206Library" means either the Library or any derivative work under
207copyright law: that is to say, a work containing the Library or a
208portion of it, either verbatim or with modifications and/or translated
209straightforwardly into another language.  (Hereinafter, translation is
210included without limitation in the term "modification".)
211
212  "Source code" for a work means the preferred form of the work for
213making modifications to it.  For a library, complete source code means
214all the source code for all modules it contains, plus any associated
215interface definition files, plus the scripts used to control compilation
216and installation of the library.
217
218  Activities other than copying, distribution and modification are not
219covered by this License; they are outside its scope.  The act of
220running a program using the Library is not restricted, and output from
221such a program is covered only if its contents constitute a work based
222on the Library (independent of the use of the Library in a tool for
223writing it).  Whether that is true depends on what the Library does
224and what the program that uses the Library does.
225 
226  1. You may copy and distribute verbatim copies of the Library's
227complete source code as you receive it, in any medium, provided that
228you conspicuously and appropriately publish on each copy an
229appropriate copyright notice and disclaimer of warranty; keep intact
230all the notices that refer to this License and to the absence of any
231warranty; and distribute a copy of this License along with the
232Library.
233
234  You may charge a fee for the physical act of transferring a copy,
235and you may at your option offer warranty protection in exchange for a
236fee.
237
238  2. You may modify your copy or copies of the Library or any portion
239of it, thus forming a work based on the Library, and copy and
240distribute such modifications or work under the terms of Section 1
241above, provided that you also meet all of these conditions:
242
243    a) The modified work must itself be a software library.
244
245    b) You must cause the files modified to carry prominent notices
246    stating that you changed the files and the date of any change.
247
248    c) You must cause the whole of the work to be licensed at no
249    charge to all third parties under the terms of this License.
250
251    d) If a facility in the modified Library refers to a function or a
252    table of data to be supplied by an application program that uses
253    the facility, other than as an argument passed when the facility
254    is invoked, then you must make a good faith effort to ensure that,
255    in the event an application does not supply such function or
256    table, the facility still operates, and performs whatever part of
257    its purpose remains meaningful.
258
259    (For example, a function in a library to compute square roots has
260    a purpose that is entirely well-defined independent of the
261    application.  Therefore, Subsection 2d requires that any
262    application-supplied function or table used by this function must
263    be optional: if the application does not supply it, the square
264    root function must still compute square roots.)
265
266These requirements apply to the modified work as a whole.  If
267identifiable sections of that work are not derived from the Library,
268and can be reasonably considered independent and separate works in
269themselves, then this License, and its terms, do not apply to those
270sections when you distribute them as separate works.  But when you
271distribute the same sections as part of a whole which is a work based
272on the Library, the distribution of the whole must be on the terms of
273this License, whose permissions for other licensees extend to the
274entire whole, and thus to each and every part regardless of who wrote
275it.
276
277Thus, it is not the intent of this section to claim rights or contest
278your rights to work written entirely by you; rather, the intent is to
279exercise the right to control the distribution of derivative or
280collective works based on the Library.
281
282In addition, mere aggregation of another work not based on the Library
283with the Library (or with a work based on the Library) on a volume of
284a storage or distribution medium does not bring the other work under
285the scope of this License.
286
287  3. You may opt to apply the terms of the ordinary GNU General Public
288License instead of this License to a given copy of the Library.  To do
289this, you must alter all the notices that refer to this License, so
290that they refer to the ordinary GNU General Public License, version 2,
291instead of to this License.  (If a newer version than version 2 of the
292ordinary GNU General Public License has appeared, then you can specify
293that version instead if you wish.)  Do not make any other change in
294these notices.
295
296  Once this change is made in a given copy, it is irreversible for
297that copy, so the ordinary GNU General Public License applies to all
298subsequent copies and derivative works made from that copy.
299
300  This option is useful when you wish to copy part of the code of
301the Library into a program that is not a library.
302
303  4. You may copy and distribute the Library (or a portion or
304derivative of it, under Section 2) in object code or executable form
305under the terms of Sections 1 and 2 above provided that you accompany
306it with the complete corresponding machine-readable source code, which
307must be distributed under the terms of Sections 1 and 2 above on a
308medium customarily used for software interchange.
309
310  If distribution of object code is made by offering access to copy
311from a designated place, then offering equivalent access to copy the
312source code from the same place satisfies the requirement to
313distribute the source code, even though third parties are not
314compelled to copy the source along with the object code.
315
316  5. A program that contains no derivative of any portion of the
317Library, but is designed to work with the Library by being compiled or
318linked with it, is called a "work that uses the Library".  Such a
319work, in isolation, is not a derivative work of the Library, and
320therefore falls outside the scope of this License.
321
322  However, linking a "work that uses the Library" with the Library
323creates an executable that is a derivative of the Library (because it
324contains portions of the Library), rather than a "work that uses the
325library".  The executable is therefore covered by this License.
326Section 6 states terms for distribution of such executables.
327
328  When a "work that uses the Library" uses material from a header file
329that is part of the Library, the object code for the work may be a
330derivative work of the Library even though the source code is not.
331Whether this is true is especially significant if the work can be
332linked without the Library, or if the work is itself a library.  The
333threshold for this to be true is not precisely defined by law.
334
335  If such an object file uses only numerical parameters, data
336structure layouts and accessors, and small macros and small inline
337functions (ten lines or less in length), then the use of the object
338file is unrestricted, regardless of whether it is legally a derivative
339work.  (Executables containing this object code plus portions of the
340Library will still fall under Section 6.)
341
342  Otherwise, if the work is a derivative of the Library, you may
343distribute the object code for the work under the terms of Section 6.
344Any executables containing that work also fall under Section 6,
345whether or not they are linked directly with the Library itself.
346
347  6. As an exception to the Sections above, you may also combine or
348link a "work that uses the Library" with the Library to produce a
349work containing portions of the Library, and distribute that work
350under terms of your choice, provided that the terms permit
351modification of the work for the customer's own use and reverse
352engineering for debugging such modifications.
353
354  You must give prominent notice with each copy of the work that the
355Library is used in it and that the Library and its use are covered by
356this License.  You must supply a copy of this License.  If the work
357during execution displays copyright notices, you must include the
358copyright notice for the Library among them, as well as a reference
359directing the user to the copy of this License.  Also, you must do one
360of these things:
361
362    a) Accompany the work with the complete corresponding
363    machine-readable source code for the Library including whatever
364    changes were used in the work (which must be distributed under
365    Sections 1 and 2 above); and, if the work is an executable linked
366    with the Library, with the complete machine-readable "work that
367    uses the Library", as object code and/or source code, so that the
368    user can modify the Library and then relink to produce a modified
369    executable containing the modified Library.  (It is understood
370    that the user who changes the contents of definitions files in the
371    Library will not necessarily be able to recompile the application
372    to use the modified definitions.)
373
374    b) Use a suitable shared library mechanism for linking with the
375    Library.  A suitable mechanism is one that (1) uses at run time a
376    copy of the library already present on the user's computer system,
377    rather than copying library functions into the executable, and (2)
378    will operate properly with a modified version of the library, if
379    the user installs one, as long as the modified version is
380    interface-compatible with the version that the work was made with.
381
382    c) Accompany the work with a written offer, valid for at
383    least three years, to give the same user the materials
384    specified in Subsection 6a, above, for a charge no more
385    than the cost of performing this distribution.
386
387    d) If distribution of the work is made by offering access to copy
388    from a designated place, offer equivalent access to copy the above
389    specified materials from the same place.
390
391    e) Verify that the user has already received a copy of these
392    materials or that you have already sent this user a copy.
393
394  For an executable, the required form of the "work that uses the
395Library" must include any data and utility programs needed for
396reproducing the executable from it.  However, as a special exception,
397the materials to be distributed need not include anything that is
398normally distributed (in either source or binary form) with the major
399components (compiler, kernel, and so on) of the operating system on
400which the executable runs, unless that component itself accompanies
401the executable.
402
403  It may happen that this requirement contradicts the license
404restrictions of other proprietary libraries that do not normally
405accompany the operating system.  Such a contradiction means you cannot
406use both them and the Library together in an executable that you
407distribute.
408
409  7. You may place library facilities that are a work based on the
410Library side-by-side in a single library together with other library
411facilities not covered by this License, and distribute such a combined
412library, provided that the separate distribution of the work based on
413the Library and of the other library facilities is otherwise
414permitted, and provided that you do these two things:
415
416    a) Accompany the combined library with a copy of the same work
417    based on the Library, uncombined with any other library
418    facilities.  This must be distributed under the terms of the
419    Sections above.
420
421    b) Give prominent notice with the combined library of the fact
422    that part of it is a work based on the Library, and explaining
423    where to find the accompanying uncombined form of the same work.
424
425  8. You may not copy, modify, sublicense, link with, or distribute
426the Library except as expressly provided under this License.  Any
427attempt otherwise to copy, modify, sublicense, link with, or
428distribute the Library is void, and will automatically terminate your
429rights under this License.  However, parties who have received copies,
430or rights, from you under this License will not have their licenses
431terminated so long as such parties remain in full compliance.
432
433  9. You are not required to accept this License, since you have not
434signed it.  However, nothing else grants you permission to modify or
435distribute the Library or its derivative works.  These actions are
436prohibited by law if you do not accept this License.  Therefore, by
437modifying or distributing the Library (or any work based on the
438Library), you indicate your acceptance of this License to do so, and
439all its terms and conditions for copying, distributing or modifying
440the Library or works based on it.
441
442  10. Each time you redistribute the Library (or any work based on the
443Library), the recipient automatically receives a license from the
444original licensor to copy, distribute, link with or modify the Library
445subject to these terms and conditions.  You may not impose any further
446restrictions on the recipients' exercise of the rights granted herein.
447You are not responsible for enforcing compliance by third parties with
448this License.
449
450  11. If, as a consequence of a court judgment or allegation of patent
451infringement or for any other reason (not limited to patent issues),
452conditions are imposed on you (whether by court order, agreement or
453otherwise) that contradict the conditions of this License, they do not
454excuse you from the conditions of this License.  If you cannot
455distribute so as to satisfy simultaneously your obligations under this
456License and any other pertinent obligations, then as a consequence you
457may not distribute the Library at all.  For example, if a patent
458license would not permit royalty-free redistribution of the Library by
459all those who receive copies directly or indirectly through you, then
460the only way you could satisfy both it and this License would be to
461refrain entirely from distribution of the Library.
462
463If any portion of this section is held invalid or unenforceable under any
464particular circumstance, the balance of the section is intended to apply,
465and the section as a whole is intended to apply in other circumstances.
466
467It is not the purpose of this section to induce you to infringe any
468patents or other property right claims or to contest validity of any
469such claims; this section has the sole purpose of protecting the
470integrity of the free software distribution system which is
471implemented by public license practices.  Many people have made
472generous contributions to the wide range of software distributed
473through that system in reliance on consistent application of that
474system; it is up to the author/donor to decide if he or she is willing
475to distribute software through any other system and a licensee cannot
476impose that choice.
477
478This section is intended to make thoroughly clear what is believed to
479be a consequence of the rest of this License.
480
481  12. If the distribution and/or use of the Library is restricted in
482certain countries either by patents or by copyrighted interfaces, the
483original copyright holder who places the Library under this License may add
484an explicit geographical distribution limitation excluding those countries,
485so that distribution is permitted only in or among countries not thus
486excluded.  In such case, this License incorporates the limitation as if
487written in the body of this License.
488
489  13. The Free Software Foundation may publish revised and/or new
490versions of the Lesser General Public License from time to time.
491Such new versions will be similar in spirit to the present version,
492but may differ in detail to address new problems or concerns.
493
494Each version is given a distinguishing version number.  If the Library
495specifies a version number of this License which applies to it and
496"any later version", you have the option of following the terms and
497conditions either of that version or of any later version published by
498the Free Software Foundation.  If the Library does not specify a
499license version number, you may choose any version ever published by
500the Free Software Foundation.
501
502  14. If you wish to incorporate parts of the Library into other free
503programs whose distribution conditions are incompatible with these,
504write to the author to ask for permission.  For software which is
505copyrighted by the Free Software Foundation, write to the Free
506Software Foundation; we sometimes make exceptions for this.  Our
507decision will be guided by the two goals of preserving the free status
508of all derivatives of our free software and of promoting the sharing
509and reuse of software generally.
510
511                            NO WARRANTY
512
513  15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO
514WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
515EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR
516OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY
517KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE
518IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
519PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE
520LIBRARY IS WITH YOU.  SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME
521THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
522
523  16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN
524WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY
525AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU
526FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR
527CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
528LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
529RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
530FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
531SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
532DAMAGES.
533
534                     END OF TERMS AND CONDITIONS
535
536           How to Apply These Terms to Your New Libraries
537
538  If you develop a new library, and you want it to be of the greatest
539possible use to the public, we recommend making it free software that
540everyone can redistribute and change.  You can do so by permitting
541redistribution under these terms (or, alternatively, under the terms of the
542ordinary General Public License).
543
544  To apply these terms, attach the following notices to the library.  It is
545safest to attach them to the start of each source file to most effectively
546convey the exclusion of warranty; and each file should have at least the
547"copyright" line and a pointer to where the full notice is found.
548
549    <one line to give the library's name and a brief idea of what it does.>
550    Copyright (C) <year>  <name of author>
551
552    This library is free software; you can redistribute it and/or
553    modify it under the terms of the GNU Lesser General Public
554    License as published by the Free Software Foundation; either
555    version 2.1 of the License, or (at your option) any later version.
556
557    This library is distributed in the hope that it will be useful,
558    but WITHOUT ANY WARRANTY; without even the implied warranty of
559    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
560    Lesser General Public License for more details.
561
562    You should have received a copy of the GNU Lesser General Public
563    License along with this library; if not, write to the Free Software
564    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
565
566Also add information on how to contact you by electronic and paper mail.
567
568You should also get your employer (if you work as a programmer) or your
569school, if any, to sign a "copyright disclaimer" for the library, if
570necessary.  Here is a sample; alter the names:
571
572  Yoyodyne, Inc., hereby disclaims all copyright interest in the
573  library `Frob' (a library for tweaking knobs) written by James Random Hacker.
574
575  <signature of Ty Coon>, 1 April 1990
576  Ty Coon, President of Vice
577
578That's all there is to it!
Note: See TracBrowser for help on using the browser.