Libosmium: include/osmium/area/multipolygon_manager_legacy.hpp Source File

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

Loading...
Searching...
No Matches
multipolygon_manager_legacy.hpp
Go to the documentation of this file.
1#ifndef OSMIUM_AREA_MULTIPOLYGON_MANAGER_LEGACY_HPP
2#define OSMIUM_AREA_MULTIPOLYGON_MANAGER_LEGACY_HPP
3
4/*
5
6This file is part of Osmium (https://osmcode.org/libosmium).
7
8Copyright 2013-2026 Jochen Topf <jochen@topf.org> and others (see README).
9
10Boost Software License - Version 1.0 - August 17th, 2003
11
12Permission is hereby granted, free of charge, to any person or organization
13obtaining a copy of the software and accompanying documentation covered by
14this license (the "Software") to use, reproduce, display, distribute,
15execute, and transmit the Software, and to prepare derivative works of the
16Software, and to permit third-parties to whom the Software is furnished to
17do so, all subject to the following:
18
19The copyright notices in the Software and this entire statement, including
20the above license grant, this restriction and the following disclaimer,
21must be included in all copies of the Software, in whole or in part, and
22all derivative works of the Software, unless such copies or derivative
23works are solely in the form of machine-executable object code generated by
24a source language processor.
25
26THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
27IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
28FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
29SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
30FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
31ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
32DEALINGS IN THE SOFTWARE.
33
34*/
35
36#include <osmium/area/stats.hpp>
37#include <osmium/handler.hpp>
38#include <osmium/handler/check_order.hpp>
39#include <osmium/memory/buffer.hpp>
40#include <osmium/memory/callback_buffer.hpp>
41#include <osmium/osm/item_type.hpp>
42#include <osmium/osm/relation.hpp>
43#include <osmium/osm/tag.hpp>
44#include <osmium/osm/way.hpp>
45#include <osmium/relations/manager_util.hpp>
46#include <osmium/relations/members_database.hpp>
47#include <osmium/relations/relations_database.hpp>
48#include <osmium/relations/relations_manager.hpp>
49#include <osmium/storage/item_stash.hpp>
50
51#include <algorithm>
52#include <cassert>
53#include <cstddef>
54#include <cstdint>
55#include <cstring>
56#include <vector>
57
58namespace osmium {
59
63 namespace area {
64
77 template <typename TAssembler>
78 class MultipolygonManagerLegacy : public osmium::relations::RelationsManager<MultipolygonManagerLegacy<TAssembler>, false, true, false> {
79
80 using assembler_config_type = typename TAssembler::config_type;
81 assembler_config_type m_assembler_config;
82
83 area_stats m_stats;
84
85 public:
86
93 explicit MultipolygonManagerLegacy(const assembler_config_type& assembler_config) :
94 m_assembler_config(assembler_config) {
95 }
96
101 const area_stats& stats() const noexcept {
102 return m_stats;
103 }
104
109 bool new_relation(const osmium::Relation& relation) const {
110 const char* type = relation.tags().get_value_by_key("type");
111
112 // ignore relations without "type" tag
113 if (!type) {
114 return false;
115 }
116
117 if ((!std::strcmp(type, "multipolygon")) || (!std::strcmp(type, "boundary"))) {
118 return std::any_of(relation.members().cbegin(), relation.members().cend(), [](const RelationMember& member) {
119 return member.type() == osmium::item_type::way;
120 });
121 }
122
123 return false;
124 }
125
131 void complete_relation(const osmium::Relation& relation) {
132 std::vector<const osmium::Way*> ways;
133 ways.reserve(relation.members().size());
134 for (const auto& member : relation.members()) {
135 if (member.ref() != 0) {
136 ways.push_back(this->get_member_way(member.ref()));
137 assert(ways.back() != nullptr);
138 }
139 }
140
141 try {
142 TAssembler assembler{m_assembler_config};
143 assembler(relation, ways, this->buffer());
144 m_stats += assembler.stats();
145 } catch (const osmium::invalid_location&) {
146 // XXX ignore
147 }
148 }
149
154 void way_not_in_any_relation(const osmium::Way& way) {
155 // you need at least 4 nodes to make up a polygon
156 if (way.nodes().size() <= 3) {
157 return;
158 }
159 try {
160 if (!way.nodes().front().location() || !way.nodes().back().location()) {
161 throw osmium::invalid_location{"invalid location"};
162 }
163 if (way.ends_have_same_location()) {
164 // way is closed and has enough nodes, build simple multipolygon
165 TAssembler assembler{m_assembler_config};
166 assembler(way, this->buffer());
167 m_stats += assembler.stats();
168 }
169 } catch (const osmium::invalid_location&) {
170 // XXX ignore
171 }
172 }
173
174 }; // class MultipolygonManagerLegacy
175
176 } // namespace area
177
178} // namespace osmium
179
180#endif // OSMIUM_AREA_MULTIPOLYGON_MANAGER_LEGACY_HPP
buffer.hpp
callback_buffer.hpp
check_order.hpp
osmium::RelationMember
Definition relation.hpp:56
osmium::Relation
Definition relation.hpp:161
osmium::Way
Definition way.hpp:72
osmium::area::MultipolygonManagerLegacy::stats
const area_stats & stats() const noexcept
Definition multipolygon_manager_legacy.hpp:101
osmium::area::MultipolygonManagerLegacy::way_not_in_any_relation
void way_not_in_any_relation(const osmium::Way &way)
Definition multipolygon_manager_legacy.hpp:154
osmium::area::MultipolygonManagerLegacy::MultipolygonManagerLegacy
MultipolygonManagerLegacy(const assembler_config_type &assembler_config)
Definition multipolygon_manager_legacy.hpp:93
osmium::area::MultipolygonManagerLegacy::assembler_config_type
typename TAssembler::config_type assembler_config_type
Definition multipolygon_manager_legacy.hpp:80
osmium::area::MultipolygonManagerLegacy::complete_relation
void complete_relation(const osmium::Relation &relation)
Definition multipolygon_manager_legacy.hpp:131
osmium::area::MultipolygonManagerLegacy::m_stats
area_stats m_stats
Definition multipolygon_manager_legacy.hpp:83
osmium::area::MultipolygonManagerLegacy::new_relation
bool new_relation(const osmium::Relation &relation) const
Definition multipolygon_manager_legacy.hpp:109
osmium::area::MultipolygonManagerLegacy::m_assembler_config
assembler_config_type m_assembler_config
Definition multipolygon_manager_legacy.hpp:81
osmium::handler::Handler::way
void way(const osmium::Way &) const noexcept
Definition handler.hpp:81
osmium::relations::RelationsManagerBase::buffer
osmium::memory::Buffer & buffer() noexcept
Access the output buffer.
Definition relations_manager.hpp:259
osmium::relations::RelationsManagerBase::get_member_way
const osmium::Way * get_member_way(osmium::object_id_type id) const noexcept
Definition relations_manager.hpp:213
osmium::relations::RelationsManager
Definition relations_manager.hpp:305
osmium::relations::RelationsManager< MultipolygonManagerLegacy< TAssembler >, false, true, false >::relation
void relation(const osmium::Relation &relation)
Definition relations_manager.hpp:488
handler.hpp
item_stash.hpp
item_type.hpp
manager_util.hpp
members_database.hpp
osmium::area
Code related to the building of areas (multipolygons) from relations.
Definition assembler.hpp:55
osmium
Namespace for everything in the Osmium library.
Definition assembler.hpp:53
relation.hpp
relations_database.hpp
relations_manager.hpp
stats.hpp
osmium::area::area_stats
Definition stats.hpp:49
osmium::invalid_location
Definition location.hpp:54
tag.hpp
way.hpp