ceph/src/boost/libs/geometry/doc/src/examples/core/point_type.cpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2 // QuickBook Example
   3
   4 // Copyright (c) 2011-2012 Barend Gehrels, Amsterdam, the Netherlands.
   5
   6 // Use, modification and distribution is subject to the Boost Software License,
   7 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   8 // http://www.boost.org/LICENSE_1_0.txt)
   9
  10 //[point_type
  11 //` Examine the point type of a multi_polygon
  12
  13 #include <iostream>
  14 #include <typeinfo>
  15
  16 #include <boost/geometry.hpp>
  17 #include <boost/geometry/geometries/polygon.hpp>
  18 #include <boost/geometry/geometries/point_xy.hpp>
  19 #include <boost/geometry/geometries/multi_polygon.hpp>
  20
  21 int main()
  22 {
  23     typedef boost::geometry::model::d2::point_xy<double> point_type;
  24     typedef boost::geometry::model::polygon<point_type> polygon_type;
  25     typedef boost::geometry::model::multi_polygon<polygon_type> mp_type;
  26
  27     typedef boost::geometry::point_type<mp_type>::type ptype;
  28
  29     std::cout << "point type: " << typeid(ptype).name() << std::endl;
  30
  31     return 0;
  32 }
  33
  34 //]
  35
  36
  37 //[point_type_output
  38 /*`
  39 Output (in MSVC):
  40 [pre
  41 point type: class boost::geometry::model::d2::point_xy<double,struct boost::geometry::cs::cartesian>
  42 ]
  43 */
  44 //]