Libosmium 2.22.0 Fast and flexible C++ library for working with OpenStreetMap data

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object_relations.hpp
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1#ifndef OSMIUM_HANDLER_OBJECT_RELATIONS_HPP
2#define OSMIUM_HANDLER_OBJECT_RELATIONS_HPP
3
4/*
5
6 This file is part of Osmium (https://osmcode.org/libosmium).
7
8 Copyright 2013-2025 Jochen Topf <jochen@topf.org> and others (see README).
9
10 Boost Software License - Version 1.0 - August 17th, 2003
11
12 Permission is hereby granted, free of charge, to any person or organization
13 obtaining a copy of the software and accompanying documentation covered by
14 this license (the "Software") to use, reproduce, display, distribute,
15 execute, and transmit the Software, and to prepare derivative works of the
16 Software, and to permit third-parties to whom the Software is furnished to
17 do so, all subject to the following:
18
19 The copyright notices in the Software and this entire statement, including
20 the above license grant, this restriction and the following disclaimer,
21 must be included in all copies of the Software, in whole or in part, and
22 all derivative works of the Software, unless such copies or derivative
23 works are solely in the form of machine-executable object code generated by
24 a source language processor.
25
26 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28 FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
29 SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
30 FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
31 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
32 DEALINGS IN THE SOFTWARE.
33
34*/
35
36#include <osmium/handler.hpp>
37#include <osmium/index/multimap.hpp>
38#include <osmium/osm/item_type.hpp>
39#include <osmium/osm/node_ref.hpp>
40#include <osmium/osm/relation.hpp>
41#include <osmium/osm/types.hpp>
42#include <osmium/osm/way.hpp>
43
44 namespace osmium {
45
46 namespace handler {
47
55 class ObjectRelations : public osmium::handler::Handler {
56
57 using index_type = osmium::index::multimap::Multimap<unsigned_object_id_type, unsigned_object_id_type>;
58
59 index_type& m_index_n2w;
60 index_type& m_index_n2r;
61 index_type& m_index_w2r;
62 index_type& m_index_r2r;
63
64 public:
65
66 explicit ObjectRelations(index_type& n2w, index_type& n2r, index_type& w2r, index_type& r2r) :
67 m_index_n2w(n2w),
68 m_index_n2r(n2r),
69 m_index_w2r(w2r),
70 m_index_r2r(r2r) {
71 }
72
73 void way(const osmium::Way& way) {
74 for (const auto& node_ref : way.nodes()) {
75 m_index_n2w.set(node_ref.positive_ref(), way.positive_id());
76 }
77 }
78
79 void relation(const osmium::Relation& relation) {
80 for (const auto& member : relation.members()) {
81 switch (member.type()) {
82 case osmium::item_type::node:
83 m_index_n2r.set(member.positive_ref(), relation.positive_id());
84 break;
85 case osmium::item_type::way:
86 m_index_w2r.set(member.positive_ref(), relation.positive_id());
87 break;
88 case osmium::item_type::relation:
89 m_index_r2r.set(member.positive_ref(), relation.positive_id());
90 break;
91 default:
92 break;
93 }
94 }
95 }
96
97 }; // class ObjectRelations
98
99 } // namespace handler
100
101} // namespace osmium
102
103#endif // OSMIUM_HANDLER_OBJECT_RELATIONS_HPP
osmium::Relation
Definition relation.hpp:161
osmium::Way
Definition way.hpp:72
osmium::handler::Handler
Definition handler.hpp:71
osmium::handler::ObjectRelations
Definition object_relations.hpp:55
osmium::handler::ObjectRelations::m_index_n2w
index_type & m_index_n2w
Definition object_relations.hpp:59
osmium::handler::ObjectRelations::way
void way(const osmium::Way &way)
Definition object_relations.hpp:73
osmium::handler::ObjectRelations::m_index_r2r
index_type & m_index_r2r
Definition object_relations.hpp:62
osmium::handler::ObjectRelations::ObjectRelations
ObjectRelations(index_type &n2w, index_type &n2r, index_type &w2r, index_type &r2r)
Definition object_relations.hpp:66
osmium::handler::ObjectRelations::m_index_n2r
index_type & m_index_n2r
Definition object_relations.hpp:60
osmium::handler::ObjectRelations::relation
void relation(const osmium::Relation &relation)
Definition object_relations.hpp:79
osmium::handler::ObjectRelations::m_index_w2r
index_type & m_index_w2r
Definition object_relations.hpp:61
osmium::index::multimap::Multimap
Definition multimap.hpp:51
osmium::index::multimap::Multimap::set
virtual void set(const TId id, const TValue value)=0
Set the field with id to value.
handler.hpp
item_type.hpp
multimap.hpp
osmium
Namespace for everything in the Osmium library.
Definition assembler.hpp:53
osmium::item_type::relation
@ relation
osmium::item_type::node
@ node
osmium::item_type::way
@ way
node_ref.hpp
relation.hpp
types.hpp
way.hpp