Qt 5.9 | Qt Location | Clipper Polygon Clipping Library

Qt 5.9.9 Reference Documentation

# Clipper Polygon Clipping Library

The Clipper library performs line & polygon clipping - intersection, union, difference & exclusive-or, and line & polygon offsetting.

Used in the QML plugin of Qt Location.

The sources can be found in qtlocation-opensource-src-5.9.9/src/3rdparty/clipper.

Project Homepage, upstream version: 6.4.0

      Copyright Angus Johnson 2010-2015

Boost Software License 1.0.

      Use, modification & distribution is subject to Boost Software License Ver 1.
      http://www.boost.org/LICENSE_1_0.txt

      Attributions:
      The code in this library is an extension of Bala Vatti's clipping algorithm:
      "A generic solution to polygon clipping"
      Communications of the ACM, Vol 35, Issue 7 (July 1992) pp 56-63.
      http://portal.acm.org/citation.cfm?id=129906

      Computer graphics and geometric modeling: implementation and algorithms
      By Max K. Agoston
      Springer; 1 edition (January 4, 2005)
      http://books.google.com/books?q=vatti+clipping+agoston

      See also:
      "Polygon Offsetting by Computing Winding Numbers"
      Paper no. DETC2005-85513 pp. 565-575
      ASME 2005 International Design Engineering Technical Conferences
      and Computers and Information in Engineering Conference (IDETC/CIE2005)
      September 24-28, 2005 , Long Beach, California, USA
      http://www.me.berkeley.edu/~mcmains/pubs/DAC05OffsetPolygon.pdf