Open CASCADE Technology Public License

Version 6.6, April 2013

OPEN CASCADE releases and makes publicly available the source code of
the software Open CASCADE Technology to the free software development
community under the terms and conditions of this license.

It is not the purpose of this license to induce you to infringe any
patents or other property right claims or to contest validity of any such
claims; this license has the sole purpose of protecting the integrity of
the free software distribution system, which is implemented by public
license practices. Many people have made generous contributions to the
wide range of software distributed through that system in reliance on
consistent application of that system; it is up to the author/donor to
decide if he or she is willing to distribute software through any other
system and a licensee cannot impose that choice.

Please read this license carefully and completely before downloading this
software. By downloading, using, modifying, distributing and sublicensing
this software, you indicate your acceptance to be bound by the terms
and conditions of this license. If you do not want to accept or cannot
accept for any reasons the terms and conditions of this license, please
do not download or use in any manner this software.

   1. Definitions

   Unless there is something in the subject matter or in the context
   inconsistent therewith, the capitalized terms used in this License
   shall have the following meaning.

   "Applicable Intellectual Property Rights" means (a) with respect to the
   Initial Developer, any rights under patents or patents applications or
   other intellectual property rights that are now or hereafter acquired,
   owned by or assigned to the Initial Developer and that cover subject
   matter contained in the Original Code, but only to the extent necessary
   to use, reproduce, modify, distribute or sublicense the Original Code
   without infringement; and (b) with respect to You or any Contributor,
   any rights under patents or patents applications or other intellectual
   property rights that are now or hereafter acquired, owned by or
   assigned to You or to such Contributor and that cover subject matter
   contained in Your Modifications or in such Contributor's Modifications,
   taken alone or in combination with Original Code.

   "Contributor" means each individual or legal entity that creates
   or contributes to the creation of any Modification, including the
   Initial Developer.

   "Derivative Program": means a new program combining the Software or
   portions thereof with other source code not governed by the terms of
   this License.

   "Initial Developer": means OPEN CASCADE, with main offices at 1,
   place des Frères Montgolfier, 78280, Guyancourt, France.

   "Modifications": mean any addition to, deletion from or change to
   the substance or the structure of the Software. When source code of
   the Software is released as a series of files, a Modification is:
   (a) any addition to, deletion from or change to the contents of a file
   containing the Software or (b) any new file or other representation of
   computer program statements that contains any part of the Software. By
   way of example, Modifications include any debug of, or improvement
   to, the Original Code or any of its components or portions as well
   as its next versions or releases thereof.

   "Original Code": means (a) the source code of the software Open CASCADE
   Technology originally made available by the Initial Developer under
   this License, including the source code of any updates or upgrades of
   the Original Code and (b) the object code compiled from such source
   code and originally made available by Initial Developer under this
   License.

   "Software": means the Original Code, the Modifications, the combination
   of Original Code and any Modifications or any respective portions
   thereof.

   "You" or "Your": means an individual or a legal entity exercising
   rights under this License

   2. Acceptance of license

   By using, reproducing, modifying, distributing or sublicensing the
   Software or any portion thereof, You expressly indicate Your acceptance
   of the terms and conditions of this License and undertake to act in
   accordance with all the provisions of this License applicable to You.

   3. Scope and purpose

   This License applies to the Software and You may not use, reproduce,
   modify, distribute, sublicense or circulate the Software, or any
   portion thereof, except as expressly provided under this License. Any
   attempt to otherwise use, reproduce, modify, distribute or sublicense
   the Software is void and will automatically terminate Your rights
   under this License.

   4. Contributor license

   Subject to the terms and conditions of this License, the Initial
   Developer and each of the Contributors hereby grant You a world-wide,
   royalty-free, irrevocable and non-exclusive license under the
   Applicable Intellectual Property Rights they own or control, to use,
   reproduce, modify, distribute and sublicense the Software provided
   that:

   You reproduce in all copies of the Software the copyright and other
   proprietary notices and disclaimers of the Initial Developer as they
   appear in the Original Code and attached hereto as Schedule "A" and
   any other notices or disclaimers attached to the Software and keep
   intact all notices in the Original Code that refer to this License
   and to the absence of any warranty;

   You include a copy of this License with every copy of the Software
   You distribute;

   If you distribute or sublicense the Software (as modified by You or
   on Your behalf as the case may be), You cause such Software to be
   licensed as a whole, at no charge, to all third parties, under the
   terms and conditions of the License, making in particular available
   to all third parties the source code of the Software;

   You document all Your Modifications, indicate the date of each
   such Modification, designate the version of the Software You used,
   prominently include a file carrying such information with respect to
   the Modifications and duplicate the copyright and other proprietary
   notices and disclaimers attached hereto as Schedule "B" or any
   other notices or disclaimers attached to the Software with your
   Modifications.

   For greater certainty, it is expressly understood that You may freely
   create Derivative Programs (without any obligation to publish such
   Derivative Program) and distribute same as a single product. In such
   case, You must ensure that all the requirements of this License are
   fulfilled for the Software or any portion thereof.

   5. Your license

   You hereby grant all Contributors and anyone who becomes a party under
   this License a world-wide, non-exclusive, royalty-free and irrevocable
   license under the Applicable Intellectual Property Rights owned or
   controlled by You, to use, reproduce, modify, distribute and sublicense
   all Your Modifications under the terms and conditions of this License.

   6. Software subject to license

   Your Modifications shall be governed by the terms and conditions
   of this License. You are not authorized to impose any other terms or
   conditions than those prevailing under this License when You distribute
   and/or sublicense the Software, save and except as permitted under
   Section 7 hereof.

   7. Additional terms

   You may choose to offer, on a non-exclusive basis, and to charge a
   fee for any warranty, support, maintenance, liability obligations or
   other rights consistent with the scope of this License with respect
   to the Software (the "Additional Terms") to the recipients of the
   Software. However, You may do so only on Your own behalf and on Your
   sole and exclusive responsibility. You must obtain the recipient's
   agreement that any such Additional Terms are offered by You alone,
   and You hereby agree to indemnify, defend and hold the Initial
   Developer and any Contributor harmless for any liability incurred by
   or claims asserted against the Initial Developer or any Contributors
   with respect to any such Additional Terms.

   8. Disclaimer of warranty

   The Software is provided under this License on an "as is" basis,
   without warranty of any kind, including without limitation,
   warranties that the Software is free of defects, merchantable, fit
   for a particular purpose or non-infringing. The entire risk as to
   the quality and performance of the Software is with You.

   9. Liability

   Under no circumstances shall You, the Initial Developer or any
   Contributor be liable to any person for any direct or indirect
   damages of any kind including, without limitation, damages for loss of
   goodwill, loss of data, work stoppage, computer failure or malfunction
   or any and all other commercial damages or losses resulting from or
   relating to this License or indirectly to the use of the Software.

   10. Trademark

   This License does not grant any rights to use the trademarks, trade
   names and domain names "MATRA", "EADS Matra Datavision", "CAS.CADE",
   "Open CASCADE", "opencascade.com" and "opencascade.org" or any other
   trademarks, trade names or domain names used or owned by the Initial
   Developer.

   11. Copyright

   The Initial Developer retains all rights, title and interest in and
   to the Original Code. You may not remove the copyright © notice
   which appears when You download the Software.

   12. Term

   This License is granted to You for a term equal to the remaining
   period of protection covered by the intellectual property rights
   applicable to the Original Code.

   13. Termination

   In case of termination, as provided in Section 3 above, You agree
   to immediately stop any further use, reproduction, modification,
   distribution and sublicensing of the Software and to destroy all copies
   of the Software that are in Your possession or control. All sublicenses
   of the Software which have been properly granted prior to termination
   shall survive any termination of this License. In addition, Sections
   5, 8 to 11, 13.2 and 15.2 of this License, in reason of their nature,
   shall survive the termination of this License for a period of fifteen
   (15) years.

   14. Versions of the license

   The Initial Developer may publish new versions of this License from
   time to time. Once Original Code has been published under a particular
   version of this License, You may choose to continue to use it under
   the terms and conditions of that version or use the Original Code
   under the terms of any subsequent version of this License published
   by the Initial Developer.

   15. Miscellaneous

      15.1 Relationship of the Parties This License will not be construed
      as creating an agency, partnership, joint venture or any other
      form of legal association between You and the Initial Developer,
      and You will not represent to the contrary, whether expressly,
      by implication or otherwise.

      15.2 Independent Development Nothing in this License will impair
      the Initial Developer's right to acquire, license, develop, have
      others develop for it, market or distribute technology or products
      that perform the same or similar functions as, or otherwise compete
      with, Modifications, Derivative Programs, technology or products
      that You may develop, produce, market or distribute.

      15.3 Severability If for any reason a court of competent
      jurisdiction finds any provision of this License, or portion
      thereof, to be unenforceable, that provision of the License will
      be enforced to the maximum extent permissible so as to effect the
      economic benefits and intent of the parties, and the remainder of
      this License will continue in full force and extent. END OF THE
      TERMS AND CONDITIONS OF THIS LICENSE

OPEN CASCADE is a French société par actions simplifiée having
its registered head office at 1, place des Frères Montgolfier, 78280,
Guyancourt, France and main offices at 1, place des Frères Montgolfier,
78280, Guyancourt, France. Its web site is located at the following
address opencascade.com

Open CASCADE Technology Public License

Schedule "A"

The content of this file is subject to the Open CASCADE Technology Public
License (the "License"). You may not use the content of this file except
in compliance with the License. Please obtain a copy of the License at
opencascade.com and read it completely before using this file.

The Initial Developer of the Original Code is OPEN CASCADE, with
main offices at 1, place des Frères Montgolfier, 78280, Guyancourt,
France. The Original Code is copyright © OPEN CASCADE SAS, 2001. All
rights reserved. "The Original Code and all software distributed under
the License are distributed on an "AS IS" basis, without warranty of any
kind, and the Initial Developer hereby disclaims all such warranties,
including without limitation, any warranties of merchantability, fitness
for a particular purpose or non-infringement.

Please see the License for the specific terms and conditions governing
rights and limitations under the License".

End of Schedule "A"

Open CASCADE Technology Public License

Schedule "B"

"The content of this file is subject to the Open CASCADE Technology Public
License (the "License"). You may not use the content of this file except
in compliance with the License. Please obtain a copy of the License at
opencascade.com and read it completely before using this file.

The Initial Developer of the Original Code is OPEN CASCADE, with
main offices at 1, place des Frères Montgolfier, 78280, Guyancourt,
France. The Original Code is copyright © Open CASCADE SAS, 2001. All
rights reserved.

Modifications to the Original Code have been made by
________________________. Modifications are copyright © [Year to be
included]. All rights reserved.

The software Open CASCADE Technology and all software distributed under
the License are distributed on an "AS IS" basis, without warranty of any
kind, and the Initial Developer hereby disclaims all such warranties,
including without limitation, any warranties of merchantability, fitness
for a particular purpose or non-infringement.

Please see the License for the specific terms and conditions governing
rights and limitations under the License"

End of Schedule "B"
