+template <typename Multi>
+struct wkt<Multi, multi_point_tag>
+ : detail::wkt::wkt_multi
+ <
+ Multi,
+ detail::wkt::wkt_point
+ <
+ typename boost::range_value<Multi>::type,
+ detail::wkt::prefix_null
+ >,
+ detail::wkt::prefix_multipoint
+ >
+{};
+
+template <typename Multi>
+struct wkt<Multi, multi_linestring_tag>
+ : detail::wkt::wkt_multi
+ <
+ Multi,
+ detail::wkt::wkt_sequence
+ <
+ typename boost::range_value<Multi>::type
+ >,
+ detail::wkt::prefix_multilinestring
+ >
+{};
+
+template <typename Multi>
+struct wkt<Multi, multi_polygon_tag>
+ : detail::wkt::wkt_multi
+ <
+ Multi,
+ detail::wkt::wkt_poly
+ <
+ typename boost::range_value<Multi>::type,
+ detail::wkt::prefix_null
+ >,
+ detail::wkt::prefix_multipolygon
+ >
+{};
+
+
+template <typename Geometry>
+struct devarianted_wkt
+{
+ template <typename OutputStream>
+ static inline void apply(OutputStream& os, Geometry const& geometry)
+ {
+ wkt<Geometry>::apply(os, geometry);
+ }
+};
+
+template <BOOST_VARIANT_ENUM_PARAMS(typename T)>
+struct devarianted_wkt<variant<BOOST_VARIANT_ENUM_PARAMS(T)> >
+{
+ template <typename OutputStream>
+ struct visitor: static_visitor<void>
+ {
+ OutputStream& m_os;
+
+ visitor(OutputStream& os)
+ : m_os(os)
+ {}
+
+ template <typename Geometry>
+ inline void operator()(Geometry const& geometry) const
+ {
+ devarianted_wkt<Geometry>::apply(m_os, geometry);
+ }
+ };
+
+ template <typename OutputStream>
+ static inline void apply(
+ OutputStream& os,
+ variant<BOOST_VARIANT_ENUM_PARAMS(T)> const& geometry
+ )
+ {
+ apply_visitor(visitor<OutputStream>(os), geometry);
+ }
+};
+
+