1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
// Boost.Geometry (aka GGL, Generic Geometry Library)
// Copyright (c) 2014-2019, Oracle and/or its affiliates.
// Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
// Licensed under the Boost Software License version 1.0.
// http://www.boost.org/users/license.html
#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_SIMPLE_MULTIPOINT_HPP
#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_SIMPLE_MULTIPOINT_HPP
#include <algorithm>
#include <boost/range.hpp>
#include <boost/geometry/core/closure.hpp>
#include <boost/geometry/core/tags.hpp>
#include <boost/geometry/core/tags.hpp>
#include <boost/geometry/policies/compare.hpp>
#include <boost/geometry/algorithms/detail/is_valid/has_duplicates.hpp>
#include <boost/geometry/algorithms/detail/is_simple/failure_policy.hpp>
#include <boost/geometry/algorithms/dispatch/is_simple.hpp>
namespace boost { namespace geometry
{
#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace is_simple
{
template <typename MultiPoint>
struct is_simple_multipoint
{
template <typename Strategy>
static inline bool apply(MultiPoint const& multipoint, Strategy const&)
{
typedef typename Strategy::cs_tag cs_tag;
typedef geometry::less
<
typename point_type<MultiPoint>::type,
-1,
cs_tag
> less_type;
if (boost::empty(multipoint))
{
return true;
}
MultiPoint mp(multipoint);
std::sort(boost::begin(mp), boost::end(mp), less_type());
simplicity_failure_policy policy;
return !detail::is_valid::has_duplicates
<
MultiPoint, closed, cs_tag
>::apply(mp, policy);
}
};
}} // namespace detail::is_simple
#endif // DOXYGEN_NO_DETAIL
#ifndef DOXYGEN_NO_DISPATCH
namespace dispatch
{
// A MultiPoint is simple if no two Points in the MultiPoint are equal
// (have identical coordinate values in X and Y)
//
// Reference: OGC 06-103r4 (6.1.5)
template <typename MultiPoint>
struct is_simple<MultiPoint, multi_point_tag>
: detail::is_simple::is_simple_multipoint<MultiPoint>
{};
} // namespace dispatch
#endif // DOXYGEN_NO_DISPATCH
}} // namespace boost::geometry
#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_IS_SIMPLE_MULTIPOINT_HPP
|
