/Src/Dependencies/Boost/libs/geometry/test/algorithms/test_envelope.hpp

  1// Boost.Geometry (aka GGL, Generic Geometry Library) 
  2// Unit Test
  3
  4// Copyright (c) 2007-2011 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_ENVELOPE_HPP
 10#define BOOST_GEOMETRY_TEST_ENVELOPE_HPP
 11
 12
 13#include <geometry_test_common.hpp>
 14
 15#include <boost/geometry/algorithms/envelope.hpp>
 16#include <boost/geometry/geometries/box.hpp>
 17#include <boost/geometry/strategies/strategies.hpp>
 18
 19#include <boost/geometry/domains/gis/io/wkt/read_wkt.hpp>
 20
 21
 22template<typename Box, std::size_t DimensionCount>
 23struct check_result
 24{};
 25
 26template <typename Box>
 27struct check_result<Box, 2>
 28{
 29    typedef typename bg::coordinate_type<Box>::type ctype;
 30    typedef typename boost::mpl::if_
 31            <
 32                boost::is_arithmetic<ctype>,
 33                double,
 34                ctype
 35            >::type type;
 36
 37    static void apply(Box const& b, const type& x1, const type& y1, const type& z1,
 38                const type& x2, const type& y2, const type& z2)
 39    {
 40        BOOST_CHECK_CLOSE((bg::get<bg::min_corner, 0>(b)), x1, 0.001);
 41        BOOST_CHECK_CLOSE((bg::get<bg::min_corner, 1>(b)), y1, 0.001);
 42
 43        BOOST_CHECK_CLOSE((bg::get<bg::max_corner, 0>(b)), x2, 0.001);
 44        BOOST_CHECK_CLOSE((bg::get<bg::max_corner, 1>(b)), y2, 0.001);
 45    }
 46};
 47
 48template <typename Box>
 49struct check_result<Box, 3>
 50{
 51    typedef typename bg::coordinate_type<Box>::type ctype;
 52    typedef typename boost::mpl::if_
 53            <
 54                boost::is_arithmetic<ctype>,
 55                double,
 56                ctype
 57            >::type type;
 58
 59    static void apply(Box const& b, const type& x1, const type& y1, const type& z1,
 60                const type& x2, const type& y2, const type& z2)
 61    {
 62        BOOST_CHECK_CLOSE((bg::get<bg::min_corner, 0>(b)), x1, 0.001);
 63        BOOST_CHECK_CLOSE((bg::get<bg::min_corner, 1>(b)), y1, 0.001);
 64        BOOST_CHECK_CLOSE((bg::get<bg::min_corner, 2>(b)), z1, 0.001);
 65
 66        BOOST_CHECK_CLOSE((bg::get<bg::max_corner, 0>(b)), x2, 0.001);
 67        BOOST_CHECK_CLOSE((bg::get<bg::max_corner, 1>(b)), y2, 0.001);
 68        BOOST_CHECK_CLOSE((bg::get<bg::max_corner, 2>(b)), z2, 0.001);
 69    }
 70};
 71
 72
 73template <typename Geometry, typename T>
 74void test_envelope(std::string const& wkt,
 75                   const T& x1, const T& x2,
 76                   const T& y1, const T& y2,
 77                   const T& z1 = 0, const T& z2 = 0)
 78{
 79    typedef bg::model::box<typename bg::point_type<Geometry>::type > box_type;
 80
 81    Geometry geometry;
 82    bg::read_wkt(wkt, geometry);
 83    box_type b;
 84    bg::envelope(geometry, b);
 85
 86    check_result<box_type, bg::dimension<Geometry>::type::value>::apply(b, x1, y1, z1, x2, y2, z2);
 87}
 88
 89template <typename Geometry, typename T>
 90void test_envelope_strategy(std::string const& wkt,
 91                   const T& x1, const T& x2,
 92                   const T& y1, const T& y2,
 93                   const T& z1 = 0, const T& z2 = 0)
 94{
 95    typedef bg::model::box<typename bg::point_type<Geometry>::type > box_type;
 96
 97    Geometry geometry;
 98    bg::read_wkt(wkt, geometry);
 99    box_type b;
100    bg::envelope(geometry, b);
101
102    check_result<box_type, bg::dimension<Geometry>::type::value>::apply(b, x1, y1, z1, x2, y2, z2);
103}
104
105
106
107#endif