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// 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)
//[length
//` The following simple example shows the calculation of the length of a linestring containing three points
#include <iostream>
#include <boost/geometry.hpp>
#include <boost/geometry/geometries/linestring.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
int main()
{
using namespace boost::geometry;
model::linestring<model::d2::point_xy<double> > line;
read_wkt("linestring(0 0,1 1,4 8,3 2)", line);
std::cout << "linestring length is "
<< length(line)
<< " units" << std::endl;
return 0;
}
//]
//[length_output
/*`
Output:
[pre
linestring length is 15.1127 units
]
*/
//]
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