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54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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//
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// Copyright Barend Gehrels 2011, Geodan, Amsterdam, the Netherlands
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// Quickbook Example
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//[envelope
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//` Shows how to calculate the bounding box of a polygon
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#include <iostream>
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#include <boost/geometry/geometry.hpp>
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#include <boost/geometry/geometries/geometries.hpp>
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#include <boost/geometry/extensions/gis/io/wkt/wkt.hpp>
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/*<-*/ #include "create_svg_two.hpp" /*->*/
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int main()
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{
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typedef boost::geometry::model::d2::point_xy<double> point;
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boost::geometry::model::polygon<point> polygon;
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boost::geometry::read_wkt(
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"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)"
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"(4.0 2.0, 4.2 1.4, 4.8 1.9, 4.4 2.2, 4.0 2.0))", polygon);
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boost::geometry::model::box<point> box;
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boost::geometry::envelope(polygon, box);
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std::cout << "envelope:" << boost::geometry::dsv(box) << std::endl;
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/*<-*/ create_svg("envelope.svg", polygon, box); /*->*/
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return 0;
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}
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//]
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//[envelope_output
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/*`
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Output:
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[pre
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envelope:((2, 0.7), (5.4, 3))
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[$img/algorithms/envelope.png]
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]
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*/
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//]
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