ceph/src/boost/libs/geometry/test/algorithms/test_perimeter.hpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2 // Unit Test
   3
   4 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
   5 // Use, modification and distribution is subject to the Boost Software License,
   6 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8
   9 #ifndef BOOST_GEOMETRY_TEST_PERIMETER_HPP
  10 #define BOOST_GEOMETRY_TEST_PERIMETER_HPP
  11
  12
  13 #include <boost/variant/variant.hpp>
  14
  15 #include <geometry_test_common.hpp>
  16
  17 #include <boost/geometry/algorithms/perimeter.hpp>
  18 #include <boost/geometry/strategies/strategies.hpp>
  19 #include <boost/geometry/io/wkt/read.hpp>
  20
  21
  22 template <typename Geometry>
  23 void test_perimeter(Geometry const& geometry, long double expected_perimeter)
  24 {
  25     typename bg::default_length_result<Geometry>::type
  26         perimeter = bg::perimeter(geometry);
  27
  28 #ifdef BOOST_GEOMETRY_TEST_DEBUG
  29     std::ostringstream out;
  30     out << typeid(typename bg::coordinate_type<Geometry>::type).name()
  31         << std::endl
  32         //<< typeid(typename bg::default_perimeter_result<Geometry>::type).name()
  33         << std::endl
  34         << "perimeter : " << bg::perimeter(geometry)
  35         << std::endl;
  36     std::cout << out.str();
  37 #endif
  38
  39     BOOST_CHECK_CLOSE(perimeter, expected_perimeter, 0.0001);
  40 }
  41
  42
  43 template <typename Geometry, typename Strategy>
  44 void test_perimeter(Geometry const& geometry, long double expected_perimeter, Strategy strategy)
  45 {
  46     typename bg::default_length_result<Geometry>::type
  47         perimeter = bg::perimeter(geometry, strategy);
  48
  49 #ifdef BOOST_GEOMETRY_TEST_DEBUG
  50     std::ostringstream out;
  51     out << typeid(typename bg::coordinate_type<Geometry>::type).name()
  52         << std::endl
  53         //<< typeid(typename bg::default_perimeter_result<Geometry>::type).name()
  54         << std::endl
  55         << "perimeter : " << bg::perimeter(geometry, strategy)
  56         << std::endl;
  57     std::cout << out.str();
  58 #endif
  59
  60     BOOST_CHECK_CLOSE(perimeter, expected_perimeter, 0.0001);
  61 }
  62
  63 template <typename Geometry>
  64 void test_geometry(std::string const& wkt, double expected_perimeter)
  65 {
  66     Geometry geometry;
  67     bg::read_wkt(wkt, geometry);
  68     boost::variant<Geometry> v(geometry);
  69
  70     test_perimeter(geometry, expected_perimeter);
  71 #if !defined(BOOST_GEOMETRY_TEST_DEBUG)
  72     test_perimeter(v, expected_perimeter);
  73 #endif
  74 }
  75
  76 template <typename Geometry, typename Strategy>
  77 void test_geometry(std::string const& wkt, double expected_perimeter, Strategy strategy)
  78 {
  79     Geometry geometry;
  80     bg::read_wkt(wkt, geometry);
  81     boost::variant<Geometry> v(geometry);
  82
  83     test_perimeter(geometry, expected_perimeter, strategy);
  84 #if !defined(BOOST_GEOMETRY_TEST_DEBUG)
  85     test_perimeter(v, expected_perimeter, strategy);
  86 #endif
  87 }
  88
  89 template <typename Geometry>
  90 void test_empty_input(Geometry const& geometry)
  91 {
  92     try
  93     {
  94         bg::perimeter(geometry);
  95     }
  96     catch(bg::empty_input_exception const& )
  97     {
  98         return;
  99     }
 100     BOOST_CHECK_MESSAGE(false, "A empty_input_exception should have been thrown" );
 101 }
 102
 103 #endif