Libosmium  2.13.0
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 (http://osmcode.org/libosmium).
7 
8 Copyright 2013-2017 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 <limits>
37 #include <type_traits>
38 
39 #include <osmium/handler.hpp>
40 #include <osmium/index/index.hpp>
42 #include <osmium/osm/location.hpp>
43 #include <osmium/osm/node.hpp>
44 #include <osmium/osm/node_ref.hpp>
45 #include <osmium/osm/types.hpp>
46 #include <osmium/osm/way.hpp>
47 
49 
50 namespace osmium {
51 
52  namespace handler {
53 
55 
64  template <typename TStoragePosIDs, typename TStorageNegIDs = dummy_type>
66 
67  template <typename T>
68  using based_on_map = std::is_base_of<osmium::index::map::Map<osmium::unsigned_object_id_type, osmium::Location>, T>;
69 
70 
71  public:
72 
73  using index_pos_type = TStoragePosIDs;
74  using index_neg_type = TStorageNegIDs;
75 
76  private:
77 
79  TStoragePosIDs& m_storage_pos;
80 
82  TStorageNegIDs& m_storage_neg;
83 
85 
86  bool m_ignore_errors = false;
87 
88  bool m_must_sort = false;
89 
90  // It is okay to have this static dummy instance, even when using several threads,
91  // because it is read-only.
92  static dummy_type& get_dummy() {
93  static dummy_type instance;
94  return instance;
95  }
96 
97  public:
98 
99  explicit NodeLocationsForWays(TStoragePosIDs& storage_pos,
100  TStorageNegIDs& storage_neg = get_dummy()) :
101  m_storage_pos(storage_pos),
102  m_storage_neg(storage_neg) {
103  }
104 
107 
110 
111  ~NodeLocationsForWays() noexcept = default;
112 
113  void ignore_errors() {
114  m_ignore_errors = true;
115  }
116 
120  void node(const osmium::Node& node) {
121  if (node.positive_id() < m_last_id) {
122  m_must_sort = true;
123  }
124  m_last_id = node.positive_id();
125 
126  const auto id = node.id();
127  if (id >= 0) {
128  m_storage_pos.set(static_cast<osmium::unsigned_object_id_type>( id), node.location());
129  } else {
130  m_storage_neg.set(static_cast<osmium::unsigned_object_id_type>(-id), node.location());
131  }
132  }
133 
138  if (id >= 0) {
139  return m_storage_pos.get_noexcept(static_cast<osmium::unsigned_object_id_type>( id));
140  } else {
141  return m_storage_neg.get_noexcept(static_cast<osmium::unsigned_object_id_type>(-id));
142  }
143  }
144 
149  void way(osmium::Way& way) {
150  if (m_must_sort) {
151  m_storage_pos.sort();
152  m_storage_neg.sort();
153  m_must_sort = false;
154  m_last_id = std::numeric_limits<osmium::unsigned_object_id_type>::max();
155  }
156  bool error = false;
157  for (auto& node_ref : way.nodes()) {
158  node_ref.set_location(get_node_location(node_ref.ref()));
159  if (!node_ref.location()) {
160  error = true;
161  }
162  }
163  if (!m_ignore_errors && error) {
164  throw osmium::not_found{"location for one or more nodes not found in node location index"};
165  }
166  }
167 
173  void clear() {
174  m_storage_pos.clear();
175  m_storage_neg.clear();
176  }
177 
178  }; // class NodeLocationsForWays
179 
180  } // namespace handler
181 
182 } // namespace osmium
183 
184 #endif // OSMIUM_HANDLER_NODE_LOCATIONS_FOR_WAYS_HPP
WayNodeList & nodes()
Definition: way.hpp:89
bool m_ignore_errors
Definition: node_locations_for_ways.hpp:86
void way(osmium::Way &way)
Definition: node_locations_for_ways.hpp:149
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:68
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:88
void ignore_errors()
Definition: node_locations_for_ways.hpp:113
Definition: handler.hpp:71
~NodeLocationsForWays() noexcept=default
static dummy_type & get_dummy()
Definition: node_locations_for_ways.hpp:92
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:84
TStoragePosIDs & m_storage_pos
Object that handles the actual storage of the node locations (with positive IDs). ...
Definition: node_locations_for_ways.hpp:79
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:74
TStorageNegIDs & m_storage_neg
Object that handles the actual storage of the node locations (with negative IDs). ...
Definition: node_locations_for_ways.hpp:82
Definition: location.hpp:273
object_id_type id() const noexcept
Get ID of this object.
Definition: object.hpp:126
osmium::Location location() const noexcept
Definition: node.hpp:67
NodeLocationsForWays & operator=(const NodeLocationsForWays &)=delete
TStoragePosIDs index_pos_type
Definition: node_locations_for_ways.hpp:73
osmium::Location get_node_location(const osmium::object_id_type id) const
Definition: node_locations_for_ways.hpp:137
Definition: node.hpp:48
Definition: index.hpp:48
NodeLocationsForWays(TStoragePosIDs &storage_pos, TStorageNegIDs &storage_neg=get_dummy())
Definition: node_locations_for_ways.hpp:99
unsigned_object_id_type positive_id() const noexcept
Get absolute value of the ID of this object.
Definition: object.hpp:131
Definition: node_locations_for_ways.hpp:65
void node(const osmium::Node &node)
Definition: node_locations_for_ways.hpp:120
void clear()
Definition: node_locations_for_ways.hpp:173