FM / overlay

/usr/include/boost/geometry/algorithms/detail/overlay/

/usr/include/boost/geometry/algorithms/detail/overlay

Name	Size	Mode	Actions
add_rings.hpp	5964	0644	edit dl rm
append_no_duplicates.hpp	2101	0644	edit dl rm
append_no_dups_or_spikes.hpp	7434	0644	edit dl rm
assign_parents.hpp	14577	0644	edit dl rm
backtrack_check_si.hpp	6371	0644	edit dl rm
check_enrich.hpp	5361	0644	edit dl rm
clip_linestring.hpp	8718	0644	edit dl rm
cluster_exits.hpp	7817	0644	edit dl rm
cluster_info.hpp	1010	0644	edit dl rm
convert_ring.hpp	3113	0644	edit dl rm
copy_segments.hpp	11481	0644	edit dl rm
copy_segment_point.hpp	11107	0644	edit dl rm
debug_turn_info.hpp	1947	0644	edit dl rm
do_reverse.hpp	1246	0644	edit dl rm
enrichment_info.hpp	2343	0644	edit dl rm
enrich_intersection_points.hpp	19008	0644	edit dl rm
follow.hpp	16907	0644	edit dl rm
follow_linear_linear.hpp	15711	0644	edit dl rm
get_distance_measure.hpp	5092	0644	edit dl rm
get_intersection_points.hpp	4265	0644	edit dl rm
get_relative_order.hpp	3260	0644	edit dl rm
get_ring.hpp	3700	0644	edit dl rm
get_turns.hpp	42078	0644	edit dl rm
get_turn_info.hpp	45746	0644	edit dl rm
get_turn_info_for_endpoint.hpp	25337	0644	edit dl rm
get_turn_info_helpers.hpp	19708	0644	edit dl rm
get_turn_info_la.hpp	34941	0644	edit dl rm
get_turn_info_ll.hpp	28380	0644	edit dl rm
handle_colocations.hpp	28604	0644	edit dl rm
handle_self_turns.hpp	9962	0644	edit dl rm
inconsistent_turns_exception.hpp	1043	0644	edit dl rm
intersection_box_box.hpp	2623	0644	edit dl rm
intersection_insert.hpp	47296	0644	edit dl rm
is_self_turn.hpp	1611	0644	edit dl rm
less_by_segment_ratio.hpp	6161	0644	edit dl rm
linear_linear.hpp	9562	0644	edit dl rm
needs_self_turns.hpp	1911	0644	edit dl rm
overlay.hpp	15706	0644	edit dl rm
overlay_type.hpp	1746	0644	edit dl rm
pointlike_areal.hpp	9593	0644	edit dl rm
pointlike_linear.hpp	11547	0644	edit dl rm
pointlike_pointlike.hpp	11878	0644	edit dl rm
range_in_geometry.hpp	5066	0644	edit dl rm
ring_properties.hpp	2135	0644	edit dl rm
segment_as_subrange.hpp	1488	0644	edit dl rm
segment_identifier.hpp	3555	0644	edit dl rm
select_rings.hpp	12362	0644	edit dl rm
self_turn_points.hpp	10814	0644	edit dl rm
sort_by_side.hpp	22216	0644	edit dl rm
stream_info.hpp	2383	0644	edit dl rm
traversal.hpp	34432	0644	edit dl rm
traversal_info.hpp	1469	0644	edit dl rm
traversal_ring_creator.hpp	15319	0644	edit dl rm
traversal_switch_detector.hpp	22642	0644	edit dl rm
traverse.hpp	3256	0644	edit dl rm
turn_info.hpp	4468	0644	edit dl rm
visit_info.hpp	2350	0644	edit dl rm

Edit: /usr/include/boost/geometry/algorithms/detail/overlay/less_by_segment_ratio.hpp (6161B)

// Boost.Geometry (aka GGL, Generic Geometry Library)

// This file was modified by Oracle on 2017.
// Modifications copyright (c) 2017 Oracle and/or its affiliates.

// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle

// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

#ifndef BOOST_GEOMETRY_ALGORITHMS_DETAIL_OVERLAY_SORT_ON_SEGMENT_RATIO_HPP
#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_OVERLAY_SORT_ON_SEGMENT_RATIO_HPP

#include <cstddef>
#include <algorithm>
#include <map>
#include <set>
#include <vector>

#include <boost/range.hpp>

#include <boost/geometry/algorithms/detail/overlay/copy_segment_point.hpp>
#include <boost/geometry/algorithms/detail/overlay/sort_by_side.hpp>
#include <boost/geometry/strategies/side.hpp>

namespace boost { namespace geometry
{

#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace overlay
{

// Wraps "turn_operation" from turn_info.hpp,
// giving it extra information, necessary for sorting
template <typename TurnOperation>
struct indexed_turn_operation
{
    typedef TurnOperation type;

std::size_t turn_index;
    std::size_t operation_index;
    bool skip;
    // use pointers to avoid copies, const& is not possible because of usage in vector
    segment_identifier const* other_seg_id; // segment id of other segment of intersection of two segments
    TurnOperation const* subject;

inline indexed_turn_operation(std::size_t ti, std::size_t oi,
                TurnOperation const& sub,
                segment_identifier const& oid)
        : turn_index(ti)
        , operation_index(oi)
        , skip(false)
        , other_seg_id(&oid)
        , subject(boost::addressof(sub))
    {}

};

template
<
    typename Turns,
    typename Indexed,
    typename Geometry1, typename Geometry2,
    typename RobustPolicy,
    typename SideStrategy,
    bool Reverse1, bool Reverse2
>
struct less_by_segment_ratio
{
    inline less_by_segment_ratio(Turns const& turns
            , Geometry1 const& geometry1
            , Geometry2 const& geometry2
            , RobustPolicy const& robust_policy
            , SideStrategy const& strategy)
        : m_turns(turns)
        , m_geometry1(geometry1)
        , m_geometry2(geometry2)
        , m_robust_policy(robust_policy)
        , m_strategy(strategy)
    {
    }

private :

Turns const& m_turns;
    Geometry1 const& m_geometry1;
    Geometry2 const& m_geometry2;
    RobustPolicy const& m_robust_policy;
    SideStrategy const& m_strategy;

typedef typename geometry::point_type<Geometry1>::type point_type;

inline bool default_order(Indexed const& left, Indexed const& right) const
    {
        // We've nothing to sort on. Take the indexes
        return left.turn_index < right.turn_index;
    }

inline bool consider_relative_order(Indexed const& left,
                    Indexed const& right) const
    {
        point_type pi, pj, ri, rj, si, sj;

geometry::copy_segment_points<Reverse1, Reverse2>(m_geometry1, m_geometry2,
            left.subject->seg_id,
            pi, pj);
        geometry::copy_segment_points<Reverse1, Reverse2>(m_geometry1, m_geometry2,
            *left.other_seg_id,
            ri, rj);
        geometry::copy_segment_points<Reverse1, Reverse2>(m_geometry1, m_geometry2,
            *right.other_seg_id,
            si, sj);

int const side_rj_p = m_strategy.apply(pi, pj, rj);
        int const side_sj_p = m_strategy.apply(pi, pj, sj);

// Put the one turning left (1; right == -1) as last
        if (side_rj_p != side_sj_p)
        {
            return side_rj_p < side_sj_p;
        }

int const side_sj_r = m_strategy.apply(ri, rj, sj);
        int const side_rj_s = m_strategy.apply(si, sj, rj);

// If they both turn left: the most left as last
        // If they both turn right: this is not relevant, but take also here most left
        if (side_rj_s != side_sj_r)
        {
            return side_rj_s < side_sj_r;
        }

return default_order(left, right);
    }

public :

// Note that left/right do NOT correspond to m_geometry1/m_geometry2
    // but to the "indexed_turn_operation"
    inline bool operator()(Indexed const& left, Indexed const& right) const
    {
        if (! (left.subject->seg_id == right.subject->seg_id))
        {
            return left.subject->seg_id < right.subject->seg_id;
        }

// Both left and right are located on the SAME segment.

if (! (left.subject->fraction == right.subject->fraction))
        {
            return left.subject->fraction < right.subject->fraction;
        }

typedef typename boost::range_value<Turns>::type turn_type;
        turn_type const& left_turn = m_turns[left.turn_index];
        turn_type const& right_turn = m_turns[right.turn_index];

// First check "real" intersection (crosses)
        // -> distance zero due to precision, solve it by sorting
        if (left_turn.method == method_crosses
            && right_turn.method == method_crosses)
        {
            return consider_relative_order(left, right);
        }

bool const left_both_xx = left_turn.both(operation_blocked);
        bool const right_both_xx = right_turn.both(operation_blocked);
        if (left_both_xx && ! right_both_xx)
        {
            return true;
        }
        if (! left_both_xx && right_both_xx)
        {
            return false;
        }

bool const left_both_uu = left_turn.both(operation_union);
        bool const right_both_uu = right_turn.both(operation_union);
        if (left_both_uu && ! right_both_uu)
        {
            return true;
        }
        if (! left_both_uu && right_both_uu)
        {
            return false;
        }

return default_order(left, right);
    }
};

}} // namespace detail::overlay
#endif //DOXYGEN_NO_DETAIL

}} // namespace boost::geometry

#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_OVERLAY_SORT_ON_SEGMENT_RATIO_HPP

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