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1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | ||
3 | // Copyright (c) 2014, Oracle and/or its affiliates. | |
4 | ||
5 | // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle | |
6 | ||
7 | // Licensed under the Boost Software License version 1.0. | |
8 | // http://www.boost.org/users/license.html | |
9 | ||
10 | #ifndef BOOST_GEOMETRY_ALGORITHS_DETAIL_DISTANCE_ITERATOR_SELECTOR_HPP | |
11 | #define BOOST_GEOMETRY_ALGORITHS_DETAIL_DISTANCE_ITERATOR_SELECTOR_HPP | |
12 | ||
13 | #include <boost/geometry/core/tag.hpp> | |
14 | #include <boost/geometry/core/tags.hpp> | |
15 | ||
16 | #include <boost/geometry/iterators/point_iterator.hpp> | |
17 | #include <boost/geometry/iterators/segment_iterator.hpp> | |
18 | ||
19 | ||
20 | namespace boost { namespace geometry | |
21 | { | |
22 | ||
23 | ||
24 | #ifndef DOXYGEN_NO_DETAIL | |
25 | namespace detail { namespace distance | |
26 | { | |
27 | ||
28 | ||
29 | // class to choose between point_iterator and segment_iterator | |
30 | template <typename Geometry, typename Tag = typename tag<Geometry>::type> | |
31 | struct iterator_selector | |
32 | { | |
33 | typedef geometry::segment_iterator<Geometry> iterator_type; | |
34 | ||
35 | static inline iterator_type begin(Geometry& geometry) | |
36 | { | |
37 | return segments_begin(geometry); | |
38 | } | |
39 | ||
40 | static inline iterator_type end(Geometry& geometry) | |
41 | { | |
42 | return segments_end(geometry); | |
43 | } | |
44 | }; | |
45 | ||
46 | template <typename MultiPoint> | |
47 | struct iterator_selector<MultiPoint, multi_point_tag> | |
48 | { | |
49 | typedef geometry::point_iterator<MultiPoint> iterator_type; | |
50 | ||
51 | static inline iterator_type begin(MultiPoint& multipoint) | |
52 | { | |
53 | return points_begin(multipoint); | |
54 | } | |
55 | ||
56 | static inline iterator_type end(MultiPoint& multipoint) | |
57 | { | |
58 | return points_end(multipoint); | |
59 | } | |
60 | }; | |
61 | ||
62 | ||
63 | }} // namespace detail::distance | |
64 | #endif // DOXYGEN_NO_DETAIL | |
65 | ||
66 | ||
67 | }} // namespace boost::geometry | |
68 | ||
69 | ||
70 | #endif // BOOST_GEOMETRY_ALGORITHS_DETAIL_DISTANCE_ITERATOR_SELECTOR_HPP |