Libosmium  2.15.4
Fast and flexible C++ library for working with OpenStreetMap data
assembler.hpp
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1 #ifndef OSMIUM_AREA_ASSEMBLER_HPP
2 #define OSMIUM_AREA_ASSEMBLER_HPP
3 
4 /*
5 
6 This file is part of Osmium (https://osmcode.org/libosmium).
7 
8 Copyright 2013-2019 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 
37 #include <osmium/area/detail/basic_assembler_with_tags.hpp>
38 #include <osmium/area/detail/segment_list.hpp>
40 #include <osmium/area/stats.hpp>
42 #include <osmium/memory/buffer.hpp>
43 #include <osmium/osm/item_type.hpp>
44 #include <osmium/osm/node_ref.hpp>
45 #include <osmium/osm/relation.hpp>
46 #include <osmium/osm/tag.hpp>
47 #include <osmium/osm/way.hpp>
48 
49 #include <cassert>
50 #include <iostream>
51 #include <vector>
52 
53 namespace osmium {
54 
55  namespace area {
56 
61  class Assembler : public detail::BasicAssemblerWithTags {
62 
63  bool create_area(osmium::memory::Buffer& out_buffer, const osmium::Way& way) {
64  osmium::builder::AreaBuilder builder{out_buffer};
65  builder.initialize_from_object(way);
66 
67  const bool area_okay = create_rings();
68  if (area_okay || config().create_empty_areas) {
69  builder.add_item(way.tags());
70  }
71  if (area_okay) {
72  add_rings_to_area(builder);
73  }
74 
75  if (report_ways()) {
76  config().problem_reporter->report_way(way);
77  }
78 
79  return area_okay || config().create_empty_areas;
80  }
81 
82  bool create_area(osmium::memory::Buffer& out_buffer, const osmium::Relation& relation, const std::vector<const osmium::Way*>& members) {
83  set_num_members(members.size());
84  osmium::builder::AreaBuilder builder{out_buffer};
85  builder.initialize_from_object(relation);
86 
87  const bool area_okay = create_rings();
88  if (area_okay || config().create_empty_areas) {
89  if (config().keep_type_tag) {
90  builder.add_item(relation.tags());
91  } else {
92  copy_tags_without_type(builder, relation.tags());
93  }
94  }
95  if (area_okay) {
96  add_rings_to_area(builder);
97  }
98 
99  if (report_ways()) {
100  for (const osmium::Way* way : members) {
101  config().problem_reporter->report_way(*way);
102  }
103  }
104 
105  return area_okay || config().create_empty_areas;
106  }
107 
108  public:
109 
110  explicit Assembler(const config_type& config) :
111  detail::BasicAssemblerWithTags(config) {
112  }
113 
121  bool operator()(const osmium::Way& way, osmium::memory::Buffer& out_buffer) {
122  if (!config().create_way_polygons) {
123  return true;
124  }
125 
126  if (config().problem_reporter) {
127  config().problem_reporter->set_object(osmium::item_type::way, way.id());
128  config().problem_reporter->set_nodes(way.nodes().size());
129  }
130 
131  // Ignore (but count) ways without segments.
132  if (way.nodes().size() < 2) {
133  ++stats().short_ways;
134  return false;
135  }
136 
137  if (!way.ends_have_same_id()) {
138  ++stats().duplicate_nodes;
139  if (config().problem_reporter) {
140  config().problem_reporter->report_duplicate_node(way.nodes().front().ref(), way.nodes().back().ref(), way.nodes().front().location());
141  }
142  }
143 
144  ++stats().from_ways;
145  stats().invalid_locations = segment_list().extract_segments_from_way(config().problem_reporter,
146  stats().duplicate_nodes,
147  way);
148  if (!config().ignore_invalid_locations && stats().invalid_locations > 0) {
149  return false;
150  }
151 
152  if (config().debug_level > 0) {
153  std::cerr << "\nAssembling way " << way.id() << " containing " << segment_list().size() << " nodes\n";
154  }
155 
156  // Now create the Area object and add the attributes and tags
157  // from the way.
158  const bool okay = create_area(out_buffer, way);
159  if (okay) {
160  out_buffer.commit();
161  } else {
162  out_buffer.rollback();
163  }
164 
165  if (debug()) {
166  std::cerr << "Done: " << stats() << "\n";
167  }
168 
169  return okay;
170  }
171 
179  bool operator()(const osmium::Relation& relation, const std::vector<const osmium::Way*>& members, osmium::memory::Buffer& out_buffer) {
180  if (!config().create_new_style_polygons) {
181  return true;
182  }
183 
184  assert(relation.cmembers().size() >= members.size());
185 
186  if (config().problem_reporter) {
187  config().problem_reporter->set_object(osmium::item_type::relation, relation.id());
188  }
189 
190  if (relation.members().empty()) {
191  ++stats().no_way_in_mp_relation;
192  return false;
193  }
194 
195  ++stats().from_relations;
196  stats().invalid_locations = segment_list().extract_segments_from_ways(config().problem_reporter,
197  stats().duplicate_nodes,
198  stats().duplicate_ways,
199  relation,
200  members);
201  if (!config().ignore_invalid_locations && stats().invalid_locations > 0) {
202  return false;
203  }
204  stats().member_ways = members.size();
205 
206  if (stats().member_ways == 1) {
207  ++stats().single_way_in_mp_relation;
208  }
209 
210  if (config().debug_level > 0) {
211  std::cerr << "\nAssembling relation " << relation.id() << " containing " << members.size() << " way members with " << segment_list().size() << " nodes\n";
212  }
213 
214  // Now create the Area object and add the attributes and tags
215  // from the relation.
216  bool okay = create_area(out_buffer, relation, members);
217  if (okay) {
218  out_buffer.commit();
219  } else {
220  out_buffer.rollback();
221  }
222 
223  return okay;
224  }
225 
226  }; // class Assembler
227 
228  } // namespace area
229 
230 } // namespace osmium
231 
232 #endif // OSMIUM_AREA_ASSEMBLER_HPP
relation.hpp
osmium::area::Assembler::create_area
bool create_area(osmium::memory::Buffer &out_buffer, const osmium::Relation &relation, const std::vector< const osmium::Way * > &members)
Definition: assembler.hpp:82
osmium::memory::Buffer::rollback
void rollback()
Definition: buffer.hpp:484
detail
Definition: attr.hpp:333
osmium::area::Assembler::create_area
bool create_area(osmium::memory::Buffer &out_buffer, const osmium::Way &way)
Definition: assembler.hpp:63
osmium::area::Assembler
Definition: assembler.hpp:61
tag.hpp
osmium::area::Assembler::operator()
bool operator()(const osmium::Relation &relation, const std::vector< const osmium::Way * > &members, osmium::memory::Buffer &out_buffer)
Definition: assembler.hpp:179
way.hpp
node_ref.hpp
osmium::memory::Buffer
Definition: buffer.hpp:97
osmium
Namespace for everything in the Osmium library.
Definition: assembler.hpp:53
osmium::osm_entity_bits::area
@ area
Definition: entity_bits.hpp:72
osmium::Way
Definition: way.hpp:72
osmium::Relation
Definition: relation.hpp:168
osmium::memory::Buffer::commit
std::size_t commit()
Definition: buffer.hpp:468
problem_reporter.hpp
osmium::area::Assembler::operator()
bool operator()(const osmium::Way &way, osmium::memory::Buffer &out_buffer)
Definition: assembler.hpp:121
osmium::item_type::way
@ way
osmium::builder::AreaBuilder
Definition: osm_object_builder.hpp:570
buffer.hpp
osm_object_builder.hpp
assembler_config.hpp
osmium::item_type::relation
@ relation
stats.hpp
item_type.hpp
osmium::area::Assembler::Assembler
Assembler(const config_type &config)
Definition: assembler.hpp:110