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1 // Boost.Geometry (aka GGL, Generic Geometry Library)
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2
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3 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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4 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
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5 // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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6
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7 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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8 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
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9
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10 // Use, modification and distribution is subject to the Boost Software License,
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11 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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12 // http://www.boost.org/LICENSE_1_0.txt)
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13
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14 #ifndef BOOST_GEOMETRY_MULTI_IO_WKT_WRITE_HPP
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15 #define BOOST_GEOMETRY_MULTI_IO_WKT_WRITE_HPP
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16
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17 #include <boost/geometry/multi/core/tags.hpp>
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18 #include <boost/geometry/multi/geometries/concepts/check.hpp>
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19 #include <boost/geometry/multi/io/wkt/detail/prefix.hpp>
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20 #include <boost/geometry/io/wkt/write.hpp>
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21
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22 namespace boost { namespace geometry
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23 {
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24
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25 #ifndef DOXYGEN_NO_DETAIL
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26 namespace detail { namespace wkt
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27 {
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28
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29 template <typename Multi, typename StreamPolicy, typename PrefixPolicy>
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30 struct wkt_multi
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31 {
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32 template <typename Char, typename Traits>
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33 static inline void apply(std::basic_ostream<Char, Traits>& os,
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34 Multi const& geometry)
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35 {
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36 os << PrefixPolicy::apply();
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37 // TODO: check EMPTY here
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38 os << "(";
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39
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40 for (typename boost::range_iterator<Multi const>::type
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41 it = boost::begin(geometry);
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42 it != boost::end(geometry);
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43 ++it)
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44 {
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45 if (it != boost::begin(geometry))
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46 {
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47 os << ",";
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48 }
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49 StreamPolicy::apply(os, *it);
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50 }
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51
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52 os << ")";
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53 }
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54 };
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55
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56 }} // namespace wkt::impl
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57 #endif
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58
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59 #ifndef DOXYGEN_NO_DISPATCH
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60 namespace dispatch
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61 {
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62
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63 template <typename Multi>
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64 struct wkt<Multi, multi_point_tag>
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65 : detail::wkt::wkt_multi
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66 <
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67 Multi,
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68 detail::wkt::wkt_point
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69 <
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70 typename boost::range_value<Multi>::type,
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71 detail::wkt::prefix_null
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72 >,
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73 detail::wkt::prefix_multipoint
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74 >
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75 {};
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76
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77 template <typename Multi>
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78 struct wkt<Multi, multi_linestring_tag>
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79 : detail::wkt::wkt_multi
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80 <
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81 Multi,
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82 detail::wkt::wkt_sequence
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83 <
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84 typename boost::range_value<Multi>::type
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85 >,
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86 detail::wkt::prefix_multilinestring
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87 >
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88 {};
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89
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90 template <typename Multi>
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91 struct wkt<Multi, multi_polygon_tag>
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92 : detail::wkt::wkt_multi
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93 <
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94 Multi,
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95 detail::wkt::wkt_poly
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96 <
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97 typename boost::range_value<Multi>::type,
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98 detail::wkt::prefix_null
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99 >,
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100 detail::wkt::prefix_multipolygon
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101 >
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102 {};
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103
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104 } // namespace dispatch
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105 #endif
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106
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107 }} // namespace boost::geometry
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108
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109 #endif // BOOST_GEOMETRY_MULTI_IO_WKT_WRITE_HPP
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