1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
|
// Boost.Geometry (aka GGL, Generic Geometry Library)
// QuickBook Example
// Copyright (c) 2011-2012 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)
//[simplify_inserter
//` Simplify a linestring using a back inserter
#include <iostream>
#include <boost/geometry.hpp>
#include <boost/geometry/geometries/linestring.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
int main()
{
typedef boost::geometry::model::d2::point_xy<double> P;
typedef boost::geometry::model::linestring<P> L;
L line;
line.push_back(P(1.1, 1.1));
line.push_back(P(2.5, 2.1));
line.push_back(P(3.1, 3.1));
line.push_back(P(4.9, 1.1));
line.push_back(P(3.1, 1.9));
L simplified;
boost::geometry::simplify_inserter(line, std::back_inserter(simplified), 0.5);
std::cout
<< " original: " << boost::geometry::dsv(line) << std::endl
<< "simplified: " << boost::geometry::dsv(simplified) << std::endl;
return 0;
}
//]
//[simplify_inserter_output
/*`
Output:
[pre
original: ((1.1, 1.1), (2.5, 2.1), (3.1, 3.1), (4.9, 1.1), (3.1, 1.9))
simplified: ((1.1, 1.1), (3.1, 3.1), (4.9, 1.1), (3.1, 1.9))
]
*/
//]
|