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1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
2 | ||
3 | // Copyright (c) 2007-2015 Barend Gehrels, Amsterdam, the Netherlands. | |
4 | ||
5 | // This file was modified by Oracle on 2015, 2016. | |
6 | // Modifications copyright (c) 2015-2016 Oracle and/or its affiliates. | |
7 | // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle | |
8 | ||
9 | // Use, modification and distribution is subject to the Boost Software License, | |
10 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
11 | // http://www.boost.org/LICENSE_1_0.txt) | |
12 | ||
13 | #ifndef BOOST_GEOMETRY_STRATEGIES_INTERSECTION_RESULT_HPP | |
14 | #define BOOST_GEOMETRY_STRATEGIES_INTERSECTION_RESULT_HPP | |
15 | ||
7c673cae FG |
16 | #include <cstddef> |
17 | ||
92f5a8d4 | 18 | #include <boost/geometry/policies/robustness/segment_ratio.hpp> |
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19 | |
20 | ||
21 | namespace boost { namespace geometry | |
22 | { | |
23 | ||
24 | template <typename SegmentRatio> | |
25 | struct fraction_type | |
26 | { | |
27 | SegmentRatio robust_ra; // TODO this can be renamed now to "ra" | |
28 | SegmentRatio robust_rb; | |
29 | ||
30 | bool initialized; | |
31 | inline fraction_type() | |
32 | : initialized(false) | |
33 | {} | |
34 | ||
35 | template <typename Info> | |
36 | inline void assign(Info const& info) | |
37 | { | |
38 | initialized = true; | |
39 | robust_ra = info.robust_ra; | |
40 | robust_rb = info.robust_rb; | |
41 | } | |
42 | ||
43 | inline void assign(SegmentRatio const& a, SegmentRatio const& b) | |
44 | { | |
45 | initialized = true; | |
46 | robust_ra = a; | |
47 | robust_rb = b; | |
48 | } | |
49 | ||
50 | }; | |
51 | ||
52 | // | |
53 | /*! | |
54 | \brief return-type for segment-intersection | |
55 | \note Set in intersection_points.hpp, from segment_intersection_info | |
56 | */ | |
92f5a8d4 TL |
57 | template |
58 | < | |
59 | typename Point, | |
60 | typename SegmentRatio = segment_ratio<typename coordinate_type<Point>::type> | |
61 | > | |
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62 | struct segment_intersection_points |
63 | { | |
64 | std::size_t count; // The number of intersection points | |
65 | ||
66 | // TODO: combine intersections and fractions in one struct | |
67 | Point intersections[2]; | |
68 | fraction_type<SegmentRatio> fractions[2]; | |
69 | typedef Point point_type; | |
70 | ||
71 | segment_intersection_points() | |
72 | : count(0) | |
73 | {} | |
74 | }; | |
75 | ||
76 | }} // namespace boost::geometry | |
77 | ||
78 | ||
79 | #endif // BOOST_GEOMETRY_STRATEGIES_INTERSECTION_RESULT_HPP |