/Src/Dependencies/Boost/libs/geometry/doc/src/examples/algorithms/assign.cpp
http://hadesmem.googlecode.com/ · C++ · 66 lines · 29 code · 15 blank · 22 comment · 0 complexity · 9e3d4f2e2fc0f5dc9ca7c0655f226a3f MD5 · raw file
- // Boost.Geometry (aka GGL, Generic Geometry Library)
- // QuickBook Example
- // Copyright (c) 2011 Barend Gehrels, Amsterdam, the Netherlands.
- // Use, modification and distribution is subject to the Boost Software License,
- // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- //[assign
- //` Shows how to assign a geometry from another geometry
- #include <iostream>
- #include <boost/geometry.hpp>
- #include <boost/geometry/geometries/box.hpp>
- #include <boost/geometry/geometries/point_xy.hpp>
- #include <boost/geometry/geometries/polygon.hpp>
- #include <boost/geometry/geometries/adapted/boost_tuple.hpp>
- BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian)
- int main()
- {
- typedef boost::geometry::model::d2::point_xy<double> point;
- typedef boost::geometry::model::box<point> box;
- typedef boost::geometry::model::polygon<point> polygon;
- point p1;
- box b;
- boost::geometry::assign_values(p1, 1, 1);
- boost::geometry::assign_values(b, 1, 1, 2, 2);
-
- // Assign a box to a polygon (target = source)
- polygon p;
- boost::geometry::assign(p, b);
- // Assign a point to another point type (conversion of point-type)
- boost::tuple<double, double> p2;
- boost::geometry::assign(p2, p1);
-
- using boost::geometry::dsv;
- std::cout
- << "box: " << dsv(b) << std::endl
- << "polygon: " << dsv(p) << std::endl
- << "point: " << dsv(p1) << std::endl
- << "point tuples: " << dsv(p2) << std::endl
- ;
- return 0;
- }
- //]
- //[assign_output
- /*`
- Output:
- [pre
- box: ((1, 1), (2, 2))
- polygon: (((1, 1), (1, 2), (2, 2), (2, 1), (1, 1)))
- point: (1, 1)
- point tuples: (1, 1)
- ]
- */
- //]