Libosmium  2.14.1
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 2013-2018 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 :
100  m_storage_pos(storage_pos),
101  m_storage_neg(storage_neg) {
102  }
103 
106 
107  NodeLocationsForWays(NodeLocationsForWays&&) noexcept = default;
108  NodeLocationsForWays& operator=(NodeLocationsForWays&&) noexcept = default;
109 
110  ~NodeLocationsForWays() noexcept = default;
111 
112  void ignore_errors() {
113  m_ignore_errors = true;
114  }
115 
119  void node(const osmium::Node& node) {
120  if (node.positive_id() < m_last_id) {
121  m_must_sort = true;
122  }
123  m_last_id = node.positive_id();
124 
125  const auto id = node.id();
126  if (id >= 0) {
127  m_storage_pos.set(static_cast<osmium::unsigned_object_id_type>( id), node.location());
128  } else {
129  m_storage_neg.set(static_cast<osmium::unsigned_object_id_type>(-id), node.location());
130  }
131  }
132 
137  if (id >= 0) {
138  return m_storage_pos.get_noexcept(static_cast<osmium::unsigned_object_id_type>(id));
139  }
140  return m_storage_neg.get_noexcept(static_cast<osmium::unsigned_object_id_type>(-id));
141  }
142 
147  void way(osmium::Way& way) {
148  if (m_must_sort) {
149  m_storage_pos.sort();
150  m_storage_neg.sort();
151  m_must_sort = false;
152  m_last_id = std::numeric_limits<osmium::unsigned_object_id_type>::max();
153  }
154  bool error = false;
155  for (auto& node_ref : way.nodes()) {
156  node_ref.set_location(get_node_location(node_ref.ref()));
157  if (!node_ref.location()) {
158  error = true;
159  }
160  }
161  if (!m_ignore_errors && error) {
162  throw osmium::not_found{"location for one or more nodes not found in node location index"};
163  }
164  }
165 
171  void clear() {
172  m_storage_pos.clear();
173  m_storage_neg.clear();
174  }
175 
176  }; // class NodeLocationsForWays
177 
178  } // namespace handler
179 
180 } // namespace osmium
181 
182 #endif // OSMIUM_HANDLER_NODE_LOCATIONS_FOR_WAYS_HPP
WayNodeList & nodes()
Definition: way.hpp:89
bool m_ignore_errors
Definition: node_locations_for_ways.hpp:85
void way(osmium::Way &way)
Definition: node_locations_for_ways.hpp:147
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
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
bool m_must_sort
Definition: node_locations_for_ways.hpp:87
void ignore_errors()
Definition: node_locations_for_ways.hpp:112
Definition: handler.hpp:71
~NodeLocationsForWays() noexcept=default
static dummy_type & get_dummy()
Definition: node_locations_for_ways.hpp:91
NodeLocationsForWays(TStoragePosIDs &storage_pos, TStorageNegIDs &storage_neg=get_dummy()) noexcept
Definition: node_locations_for_ways.hpp:98
Definition: way.hpp:72
Namespace for everything in the Osmium library.
Definition: assembler.hpp:53
osmium::unsigned_object_id_type m_last_id
Definition: node_locations_for_ways.hpp:83
TStoragePosIDs & m_storage_pos
Object that handles the actual storage of the node locations (with positive IDs). ...
Definition: node_locations_for_ways.hpp:78
Definition: dummy.hpp:53
int64_t object_id_type
Type for OSM object (node, way, or relation) IDs.
Definition: types.hpp:45
TStorageNegIDs index_neg_type
Definition: node_locations_for_ways.hpp:73
TStorageNegIDs & m_storage_neg
Object that handles the actual storage of the node locations (with negative IDs). ...
Definition: node_locations_for_ways.hpp:81
Definition: location.hpp:273
object_id_type id() const noexcept
Get ID of this object.
Definition: object.hpp:122
osmium::Location location() const noexcept
Definition: node.hpp:67
NodeLocationsForWays & operator=(const NodeLocationsForWays &)=delete
TStoragePosIDs index_pos_type
Definition: node_locations_for_ways.hpp:72
osmium::Location get_node_location(const osmium::object_id_type id) const
Definition: node_locations_for_ways.hpp:136
Definition: node.hpp:48
Definition: index.hpp:48
unsigned_object_id_type positive_id() const noexcept
Get absolute value of the ID of this object.
Definition: object.hpp:127
Definition: node_locations_for_ways.hpp:64
void node(const osmium::Node &node)
Definition: node_locations_for_ways.hpp:119
void clear()
Definition: node_locations_for_ways.hpp:171