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/get_ring.hpp (3700B)

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

// 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_GET_RING_HPP
#define BOOST_GEOMETRY_ALGORITHMS_DETAIL_OVERLAY_GET_RING_HPP

#include <boost/range.hpp>

#include <boost/geometry/core/assert.hpp>
#include <boost/geometry/core/exterior_ring.hpp>
#include <boost/geometry/core/interior_rings.hpp>
#include <boost/geometry/core/ring_type.hpp>
#include <boost/geometry/core/tags.hpp>
#include <boost/geometry/algorithms/detail/ring_identifier.hpp>
#include <boost/geometry/algorithms/detail/overlay/segment_identifier.hpp>
#include <boost/geometry/algorithms/num_points.hpp>
#include <boost/geometry/geometries/concepts/check.hpp>
#include <boost/geometry/util/range.hpp>

namespace boost { namespace geometry
{

#ifndef DOXYGEN_NO_DETAIL
namespace detail { namespace overlay
{

template<typename Tag>
struct get_ring
{};

// A range of rings (multi-ring but that does not exist)
// gets the "void" tag and is dispatched here.
template<>
struct get_ring<void>
{
    template<typename Range>
    static inline typename boost::range_value<Range>::type const&
                apply(ring_identifier const& id, Range const& container)
    {
        return range::at(container, id.multi_index);
    }
};

template<>
struct get_ring<ring_tag>
{
    template<typename Ring>
    static inline Ring const& apply(ring_identifier const& , Ring const& ring)
    {
        return ring;
    }
};

template<>
struct get_ring<box_tag>
{
    template<typename Box>
    static inline Box const& apply(ring_identifier const& ,
                    Box const& box)
    {
        return box;
    }
};

template<>
struct get_ring<polygon_tag>
{
    template<typename Polygon>
    static inline typename ring_return_type<Polygon const>::type const apply(
                ring_identifier const& id,
                Polygon const& polygon)
    {
        BOOST_GEOMETRY_ASSERT
            (
                id.ring_index >= -1
                && id.ring_index < int(boost::size(interior_rings(polygon)))
            );
        return id.ring_index < 0
            ? exterior_ring(polygon)
            : range::at(interior_rings(polygon), id.ring_index);
    }
};

template<>
struct get_ring<multi_polygon_tag>
{
    template<typename MultiPolygon>
    static inline typename ring_type<MultiPolygon>::type const& apply(
                ring_identifier const& id,
                MultiPolygon const& multi_polygon)
    {
        BOOST_GEOMETRY_ASSERT
            (
                id.multi_index >= 0
                && id.multi_index < int(boost::size(multi_polygon))
            );
        return get_ring<polygon_tag>::apply(id,
                    range::at(multi_polygon, id.multi_index));
    }
};

template <typename Geometry>
inline std::size_t segment_count_on_ring(Geometry const& geometry,
                                         segment_identifier const& seg_id)
{
    typedef typename geometry::tag<Geometry>::type tag;
    ring_identifier const rid(0, seg_id.multi_index, seg_id.ring_index);
    // A closed polygon, a triangle of 4 points, including starting point,
    // contains 3 segments. So handle as if closed and subtract one.
    return geometry::num_points(detail::overlay::get_ring<tag>::apply(rid, geometry), true) - 1;
}

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

}} // namespace boost::geometry

#endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_OVERLAY_GET_RING_HPP

// Boost.Geometry (aka GGL, Generic Geometry Library) // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands. // 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_GET_RING_HPP #define BOOST_GEOMETRY_ALGORITHMS_DETAIL_OVERLAY_GET_RING_HPP #include #include #include #include #include #include #include #include #include #include #include namespace boost { namespace geometry { #ifndef DOXYGEN_NO_DETAIL namespace detail { namespace overlay { template struct get_ring {}; // A range of rings (multi-ring but that does not exist) // gets the "void" tag and is dispatched here. template<> struct get_ring { template static inline typename boost::range_value::type const& apply(ring_identifier const& id, Range const& container) { return range::at(container, id.multi_index); } }; template<> struct get_ring { template static inline Ring const& apply(ring_identifier const& , Ring const& ring) { return ring; } }; template<> struct get_ring { template static inline Box const& apply(ring_identifier const& , Box const& box) { return box; } }; template<> struct get_ring { template static inline typename ring_return_type::type const apply( ring_identifier const& id, Polygon const& polygon) { BOOST_GEOMETRY_ASSERT ( id.ring_index >= -1 && id.ring_index < int(boost::size(interior_rings(polygon))) ); return id.ring_index < 0 ? exterior_ring(polygon) : range::at(interior_rings(polygon), id.ring_index); } }; template<> struct get_ring { template static inline typename ring_type::type const& apply( ring_identifier const& id, MultiPolygon const& multi_polygon) { BOOST_GEOMETRY_ASSERT ( id.multi_index >= 0 && id.multi_index < int(boost::size(multi_polygon)) ); return get_ring::apply(id, range::at(multi_polygon, id.multi_index)); } }; template inline std::size_t segment_count_on_ring(Geometry const& geometry, segment_identifier const& seg_id) { typedef typename geometry::tag::type tag; ring_identifier const rid(0, seg_id.multi_index, seg_id.ring_index); // A closed polygon, a triangle of 4 points, including starting point, // contains 3 segments. So handle as if closed and subtract one. return geometry::num_points(detail::overlay::get_ring::apply(rid, geometry), true) - 1; } }} // namespace detail::overlay #endif // DOXYGEN_NO_DETAIL }} // namespace boost::geometry #endif // BOOST_GEOMETRY_ALGORITHMS_DETAIL_OVERLAY_GET_RING_HPP