Libosmium  2.7.2
Fast and flexible C++ library for working with OpenStreetMap data
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Pages
node_locations_for_ways.hpp
Go to the documentation of this file.
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 2013-2016 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 
68 
69  public:
70 
71  using index_pos_type = TStoragePosIDs;
72  using index_neg_type = TStorageNegIDs;
73 
74  private:
75 
77  TStoragePosIDs& m_storage_pos;
78 
80  TStorageNegIDs& m_storage_neg;
81 
83 
84  bool m_ignore_errors {false};
85 
86  bool m_must_sort {false};
87 
88  // It is okay to have this static dummy instance, even when using several threads,
89  // because it is read-only.
90  static dummy_type& get_dummy() {
91  static dummy_type instance;
92  return instance;
93  }
94 
95  public:
96 
97  explicit NodeLocationsForWays(TStoragePosIDs& storage_pos,
98  TStorageNegIDs& storage_neg = get_dummy()) :
99  m_storage_pos(storage_pos),
100  m_storage_neg(storage_neg) {
101  }
102 
105 
108 
109  ~NodeLocationsForWays() noexcept = default;
110 
111  void ignore_errors() {
112  m_ignore_errors = true;
113  }
114 
118  void node(const osmium::Node& node) {
119  if (node.positive_id() < m_last_id) {
120  m_must_sort = true;
121  }
122  m_last_id = node.positive_id();
123 
124  const osmium::object_id_type id = node.id();
125  if (id >= 0) {
126  m_storage_pos.set(static_cast<osmium::unsigned_object_id_type>( id), node.location());
127  } else {
128  m_storage_neg.set(static_cast<osmium::unsigned_object_id_type>(-id), node.location());
129  }
130  }
131 
136  if (id >= 0) {
137  return m_storage_pos.get(static_cast<osmium::unsigned_object_id_type>( id));
138  } else {
139  return m_storage_neg.get(static_cast<osmium::unsigned_object_id_type>(-id));
140  }
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  try {
157  node_ref.set_location(get_node_location(node_ref.ref()));
158  if (!node_ref.location()) {
159  error = true;
160  }
161  } catch (osmium::not_found&) {
162  error = true;
163  }
164  }
165  if (error && !m_ignore_errors) {
166  throw osmium::not_found("location for one or more nodes not found in node location index");
167  }
168  }
169 
175  void clear() {
176  m_storage_pos.clear();
177  m_storage_neg.clear();
178  }
179 
180  }; // class NodeLocationsForWays
181 
182  } // namespace handler
183 
184 } // namespace osmium
185 
186 #endif // OSMIUM_HANDLER_NODE_LOCATIONS_FOR_WAYS_HPP
WayNodeList & nodes()
Definition: way.hpp:75
bool m_ignore_errors
Definition: node_locations_for_ways.hpp:84
void way(osmium::Way &way)
Definition: node_locations_for_ways.hpp:147
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:86
void ignore_errors()
Definition: node_locations_for_ways.hpp:111
Definition: handler.hpp:45
~NodeLocationsForWays() noexcept=default
static dummy_type & get_dummy()
Definition: node_locations_for_ways.hpp:90
Definition: way.hpp:65
Namespace for everything in the Osmium library.
Definition: assembler.hpp:66
osmium::unsigned_object_id_type m_last_id
Definition: node_locations_for_ways.hpp:82
TStoragePosIDs & m_storage_pos
Object that handles the actual storage of the node locations (with positive IDs). ...
Definition: node_locations_for_ways.hpp:77
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:72
TStorageNegIDs & m_storage_neg
Object that handles the actual storage of the node locations (with negative IDs). ...
Definition: node_locations_for_ways.hpp:80
Definition: location.hpp:216
object_id_type id() const noexcept
Get ID of this object.
Definition: object.hpp:112
osmium::Location location() const noexcept
Definition: node.hpp:61
NodeLocationsForWays & operator=(const NodeLocationsForWays &)=delete
TStoragePosIDs index_pos_type
Definition: node_locations_for_ways.hpp:71
Definition: node.hpp:47
Definition: index.hpp:50
NodeLocationsForWays(TStoragePosIDs &storage_pos, TStorageNegIDs &storage_neg=get_dummy())
Definition: node_locations_for_ways.hpp:97
unsigned_object_id_type positive_id() const noexcept
Get absolute value of the ID of this object.
Definition: object.hpp:117
Definition: node_locations_for_ways.hpp:65
void node(const osmium::Node &node)
Definition: node_locations_for_ways.hpp:118
osmium::Location get_node_location(const osmium::object_id_type id) const
Definition: node_locations_for_ways.hpp:135
void clear()
Definition: node_locations_for_ways.hpp:175