Libosmium  2.17.1
Fast and flexible C++ library for working with OpenStreetMap data
node_locations_for_ways.hpp
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1 #ifndef OSMIUM_HANDLER_NODE_LOCATIONS_FOR_WAYS_HPP
2 #define OSMIUM_HANDLER_NODE_LOCATIONS_FOR_WAYS_HPP
3 
4 /*
5 
6 This file is part of Osmium (https://osmcode.org/libosmium).
7 
8 Copyright 2013-2021 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/index.hpp>
40 #include <osmium/osm/location.hpp>
41 #include <osmium/osm/node.hpp>
42 #include <osmium/osm/node_ref.hpp>
43 #include <osmium/osm/types.hpp>
44 #include <osmium/osm/way.hpp>
45 
46 #include <limits>
47 #include <type_traits>
48 
49 namespace osmium {
50 
51  namespace handler {
52 
54 
63  template <typename TStoragePosIDs, typename TStorageNegIDs = dummy_type>
65 
66  template <typename T>
67  using based_on_map = std::is_base_of<osmium::index::map::Map<osmium::unsigned_object_id_type, osmium::Location>, T>;
68 
69 
70  public:
71 
72  using index_pos_type = TStoragePosIDs;
73  using index_neg_type = TStorageNegIDs;
74 
75  private:
76 
78  TStoragePosIDs& m_storage_pos;
79 
81  TStorageNegIDs& m_storage_neg;
82 
84 
85  bool m_ignore_errors = false;
86 
87  bool m_must_sort = false;
88 
89  // It is okay to have this static dummy instance, even when using several threads,
90  // because it is read-only.
91  static dummy_type& get_dummy() {
92  static dummy_type instance;
93  return instance;
94  }
95 
96  public:
97 
98  explicit NodeLocationsForWays(TStoragePosIDs& storage_pos,
99  TStorageNegIDs& storage_neg = get_dummy()) noexcept :
102  }
103 
106 
108  NodeLocationsForWays& operator=(NodeLocationsForWays&&) noexcept = default;
109 
110  ~NodeLocationsForWays() noexcept = default;
111 
112  void ignore_errors() {
113  m_ignore_errors = true;
114  }
115 
116  TStoragePosIDs& storage_pos() noexcept {
117  return m_storage_pos;
118  }
119 
120  TStorageNegIDs& storage_neg() noexcept {
121  return m_storage_neg;
122  }
123 
127  void node(const osmium::Node& node) {
128  if (node.positive_id() < m_last_id) {
129  m_must_sort = true;
130  }
131  m_last_id = node.positive_id();
132 
133  const auto id = node.id();
134  if (id >= 0) {
135  m_storage_pos.set(static_cast<osmium::unsigned_object_id_type>( id), node.location());
136  } else {
137  m_storage_neg.set(static_cast<osmium::unsigned_object_id_type>(-id), node.location());
138  }
139  }
140 
145  if (id >= 0) {
146  return m_storage_pos.get_noexcept(static_cast<osmium::unsigned_object_id_type>(id));
147  }
148  return m_storage_neg.get_noexcept(static_cast<osmium::unsigned_object_id_type>(-id));
149  }
150 
155  void way(osmium::Way& way) {
156  if (m_must_sort) {
157  m_storage_pos.sort();
158  m_storage_neg.sort();
159  m_must_sort = false;
160  m_last_id = std::numeric_limits<osmium::unsigned_object_id_type>::max();
161  }
162  bool error = false;
163  for (auto& node_ref : way.nodes()) {
164  node_ref.set_location(get_node_location(node_ref.ref()));
165  if (!node_ref.location()) {
166  error = true;
167  }
168  }
169  if (!m_ignore_errors && error) {
170  throw osmium::not_found{"location for one or more nodes not found in node location index"};
171  }
172  }
173 
179  void clear() {
180  m_storage_pos.clear();
181  m_storage_neg.clear();
182  }
183 
184  }; // class NodeLocationsForWays
185 
186  } // namespace handler
187 
188 } // namespace osmium
189 
190 #endif // OSMIUM_HANDLER_NODE_LOCATIONS_FOR_WAYS_HPP
Definition: location.hpp:271
Definition: node.hpp:48
Definition: way.hpp:72
Definition: handler.hpp:71
Definition: node_locations_for_ways.hpp:64
std::is_base_of< osmium::index::map::Map< osmium::unsigned_object_id_type, osmium::Location >, T > based_on_map
Definition: node_locations_for_ways.hpp:67
NodeLocationsForWays & operator=(const NodeLocationsForWays &)=delete
void way(osmium::Way &way)
Definition: node_locations_for_ways.hpp:155
TStoragePosIDs & storage_pos() noexcept
Definition: node_locations_for_ways.hpp:116
osmium::unsigned_object_id_type m_last_id
Definition: node_locations_for_ways.hpp:83
NodeLocationsForWays(TStoragePosIDs &storage_pos, TStorageNegIDs &storage_neg=get_dummy()) noexcept
Definition: node_locations_for_ways.hpp:98
osmium::Location get_node_location(const osmium::object_id_type id) const
Definition: node_locations_for_ways.hpp:144
TStorageNegIDs & storage_neg() noexcept
Definition: node_locations_for_ways.hpp:120
TStoragePosIDs & m_storage_pos
Object that handles the actual storage of the node locations (with positive IDs).
Definition: node_locations_for_ways.hpp:78
bool m_ignore_errors
Definition: node_locations_for_ways.hpp:85
TStorageNegIDs index_neg_type
Definition: node_locations_for_ways.hpp:73
void node(const osmium::Node &node)
Definition: node_locations_for_ways.hpp:127
NodeLocationsForWays(const NodeLocationsForWays &)=delete
void ignore_errors()
Definition: node_locations_for_ways.hpp:112
TStorageNegIDs & m_storage_neg
Object that handles the actual storage of the node locations (with negative IDs).
Definition: node_locations_for_ways.hpp:81
void clear()
Definition: node_locations_for_ways.hpp:179
TStoragePosIDs index_pos_type
Definition: node_locations_for_ways.hpp:72
static dummy_type & get_dummy()
Definition: node_locations_for_ways.hpp:91
bool m_must_sort
Definition: node_locations_for_ways.hpp:87
NodeLocationsForWays(NodeLocationsForWays &&) noexcept=default
Definition: dummy.hpp:53
Namespace for everything in the Osmium library.
Definition: assembler.hpp:53
int64_t object_id_type
Type for OSM object (node, way, or relation) IDs.
Definition: types.hpp:45
uint64_t unsigned_object_id_type
Type for OSM object (node, way, or relation) IDs where we only allow positive IDs.
Definition: types.hpp:46
Definition: index.hpp:50