1[/============================================================================ 2 Boost.Geometry (aka GGL, Generic Geometry Library) 3 4 Copyright (c) 2009-2014 Barend Gehrels, Amsterdam, the Netherlands. 5 Copyright (c) 2009-2014 Mateusz Loskot, London, UK. 6 Copyright (c) 2009-2014 Bruno Lalande, Paris, France. 7 8 This file was modified by Oracle on 2014. 9 Modifications copyright (c) 2014, Oracle and/or its affiliates. 10 11 Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle 12 13 Use, modification and distribution is subject to the Boost Software License, 14 Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at 15 http://www.boost.org/LICENSE_1_0.txt) 16=============================================================================/] 17 18[def __this_function__ union] 19 20[heading_conformance_ogc __this_function__..Union] 21[note __boost_geometry__ adds an underscore to avoid using the `union` keyword] 22 23[heading Behavior] 24[table 25[[Case] [Behavior] ] 26[[[qbk_out __point__]][Calculates union linestrings of input (multi)points]] 27[[[qbk_out __linestring__]][Calculates union linestrings of input (multi)linestrings]] 28[[[qbk_out __polygon__]][Calculates union polygons of input (multi)polygons and/or boxes]] 29] 30 31[include reference/algorithms/geometry_rules.qbk] 32 33[heading Example] 34[union] 35[union_output] 36 37[heading See also] 38* [link geometry.reference.algorithms.intersection intersection] 39* [link geometry.reference.algorithms.difference difference] 40* [link geometry.reference.algorithms.sym_difference sym_difference (symmetric difference)] 41