1Use, modification & distribution is subject to Boost Software License Ver 1. 2http://www.boost.org/LICENSE_1_0.txt 3 4Attributions: 5The code in this library is an extension of Bala Vatti's clipping algorithm: 6"A generic solution to polygon clipping" 7Communications of the ACM, Vol 35, Issue 7 (July 1992) pp 56-63. 8http://portal.acm.org/citation.cfm?id=129906 9 10Computer graphics and geometric modeling: implementation and algorithms 11By Max K. Agoston 12Springer; 1 edition (January 4, 2005) 13http://books.google.com/books?q=vatti+clipping+agoston 14 15See also: 16"Polygon Offsetting by Computing Winding Numbers" 17Paper no. DETC2005-85513 pp. 565-575 18ASME 2005 International Design Engineering Technical Conferences 19and Computers and Information in Engineering Conference (IDETC/CIE2005) 20September 24-28, 2005 , Long Beach, California, USA 21http://www.me.berkeley.edu/~mcmains/pubs/DAC05OffsetPolygon.pdf 22 23 24 25Boost Software License - Version 1.0 - August 17th, 2003 26http://www.boost.org/LICENSE_1_0.txt 27 28Permission is hereby granted, free of charge, to any person or organization 29obtaining a copy of the software and accompanying documentation covered by 30this license (the "Software") to use, reproduce, display, distribute, 31execute, and transmit the Software, and to prepare derivative works of the 32Software, and to permit third-parties to whom the Software is furnished to 33do so, all subject to the following: 34 35The copyright notices in the Software and this entire statement, including 36the above license grant, this restriction and the following disclaimer, 37must be included in all copies of the Software, in whole or in part, and 38all derivative works of the Software, unless such copies or derivative 39works are solely in the form of machine-executable object code generated by 40a source language processor. 41 42THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 43IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 44FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT 45SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE 46FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, 47ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 48DEALINGS IN THE SOFTWARE. 49