Постройте геометрию.

Synopsis

template<typename Geometry, typename Type>
Geometry make(Type const & c1, Type const & c2)

Parameters

Returns

Сконструированная геометрия: 2D точка

Header

Либо

#include <boost/geometry.hpp>

Либо

#include <boost/geometry/algorithms/make.hpp>

Example

Показывает использование макияжа в качестве общего конструктора для различных типов точек

#include <iostream>
#include <boost/geometry.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/geometries/register/point.hpp>
#include <boost/geometry/geometries/adapted/boost_tuple.hpp>
#include <boost/geometry/geometries/adapted/boost_polygon/point.hpp>
BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian)
struct mypoint { float _x, _y; };
BOOST_GEOMETRY_REGISTER_POINT_2D(mypoint, float, cs::cartesian, _x, _y)
template <typename Point>
void construct_and_display()
{
    using boost::geometry::make;
    using boost::geometry::get;
    Point p = make<Point>(1, 2);
    std::cout << "x=" << get<0>(p) << " y=" << get<1>(p)
        << " (" << typeid(Point).name() << ")"
        << std::endl;
}
int main()
{
    construct_and_display<boost::geometry::model::d2::point_xy<double> >();
    construct_and_display<boost::geometry::model::d2::point_xy<int> >();
    construct_and_display<boost::tuple<double, double> >();
    construct_and_display<boost::polygon::point_data<int> >();
    construct_and_display<mypoint>();
    return 0;
}

Выход (составлен с использованием gcc):

x=1 y=2 (N5boost8geometry5model2d28point_xyIdNS0_2cs9cartesianEEE)
x=1 y=2 (N5boost8geometry5model2d28point_xyIiNS0_2cs9cartesianEEE)
x=1 y=2 (N5boost6tuples5tupleIddNS0_9null_typeES2_S2_S2_S2_S2_S2_S2_EE)
x=1 y=2 (N5boost7polygon10point_dataIiEE)
x=1 y=2 (7mypoint)

See also