/Src/Dependencies/Boost/libs/geometry/doc/src/examples/algorithms/envelope.cpp
http://hadesmem.googlecode.com/ · C++ · 55 lines · 20 code · 16 blank · 19 comment · 0 complexity · 562e28d86afbf8ab0d1d094b3bca5ee0 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)
- //[envelope
- //` Shows how to calculate the bounding box of a polygon
- #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/domains/gis/io/wkt/wkt.hpp>
- /*<-*/ #include "create_svg_two.hpp" /*->*/
- int main()
- {
- typedef boost::geometry::model::d2::point_xy<double> point;
- boost::geometry::model::polygon<point> polygon;
- boost::geometry::read_wkt(
- "POLYGON((2 1.3,2.4 1.7,2.8 1.8,3.4 1.2,3.7 1.6,3.4 2,4.1 3,5.3 2.6,5.4 1.2,4.9 0.8,2.9 0.7,2 1.3)"
- "(4.0 2.0, 4.2 1.4, 4.8 1.9, 4.4 2.2, 4.0 2.0))", polygon);
- boost::geometry::model::box<point> box;
- boost::geometry::envelope(polygon, box);
- std::cout << "envelope:" << boost::geometry::dsv(box) << std::endl;
- /*<-*/ create_svg("envelope.svg", polygon, box); /*->*/
- return 0;
- }
- //]
- //[envelope_output
- /*`
- Output:
- [pre
- envelope:((2, 0.7), (5.4, 3))
- [$img/algorithms/envelope.png]
- ]
- */
- //]