ceph/src/boost/libs/geometry/doc/src/examples/core/coordinate_dimension.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 //[dimension
  11 //` Examine the number of coordinates making up the points in a linestring type
  12
  13 #include <iostream>
  14
  15 #include <boost/geometry.hpp>
  16 #include <boost/geometry/geometries/linestring.hpp>
  17 #include <boost/geometry/geometries/adapted/boost_tuple.hpp>
  18
  19 BOOST_GEOMETRY_REGISTER_BOOST_TUPLE_CS(cs::cartesian);
  20
  21 int main()
  22 {
  23     int dim = boost::geometry::dimension
  24         <
  25             boost::geometry::model::linestring
  26                 <
  27                     boost::tuple<float, float, float>
  28                 >
  29         >::value;
  30
  31     std::cout << "dimensions: " << dim << std::endl;
  32
  33     return 0;
  34 }
  35
  36 //]
  37
  38
  39 //[dimension_output
  40 /*`
  41 Output:
  42 [pre
  43 dimensions: 3
  44 ]
  45 */
  46 //]