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node_locations_for_ways.hpp
Go to the documentation of this file.
#ifndef OSMIUM_HANDLER_NODE_LOCATIONS_FOR_WAYS_HPP
#define OSMIUM_HANDLER_NODE_LOCATIONS_FOR_WAYS_HPP
/*
This file is part of Osmium (https://osmcode.org/libosmium).
Copyright 2013-2025 Jochen Topf <jochen@topf.org> and others (see README).
Boost Software License - Version 1.0 - August 17th, 2003
Permission is hereby granted, free of charge, to any person or organization
obtaining a copy of the software and accompanying documentation covered by
this license (the "Software") to use, reproduce, display, distribute,
execute, and transmit the Software, and to prepare derivative works of the
Software, and to permit third-parties to whom the Software is furnished to
do so, all subject to the following:
The copyright notices in the Software and this entire statement, including
the above license grant, this restriction and the following disclaimer,
must be included in all copies of the Software, in whole or in part, and
all derivative works of the Software, unless such copies or derivative
works are solely in the form of machine-executable object code generated by
a source language processor.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
#include <osmium/handler.hpp>
#include <osmium/index/index.hpp>
#include <osmium/index/map/dummy.hpp>
#include <osmium/index/node_locations_map.hpp>
#include <osmium/osm/location.hpp>
#include <osmium/osm/node.hpp>
#include <osmium/osm/node_ref.hpp>
#include <osmium/osm/types.hpp>
#include <osmium/osm/way.hpp>
#include <limits>
#include <type_traits>
namespace osmium {
namespace handler {
using dummy_type = osmium::index::map::Dummy<osmium::unsigned_object_id_type, osmium::Location>;
template <typename TStoragePosIDs, typename TStorageNegIDs = dummy_type>
class NodeLocationsForWays : public osmium::handler::Handler {
template <typename T>
using based_on_map = std::is_base_of<osmium::index::map::Map<osmium::unsigned_object_id_type, osmium::Location>, T>;
public:
using index_pos_type = TStoragePosIDs;
using index_neg_type = TStorageNegIDs;
private:
TStoragePosIDs& m_storage_pos;
TStorageNegIDs& m_storage_neg;
osmium::unsigned_object_id_type m_last_id = 0;
bool m_ignore_errors = false;
bool m_must_sort = false;
// It is okay to have this static dummy instance, even when using several threads,
// because it is read-only.
static dummy_type& get_dummy() {
static dummy_type instance;
return instance;
}
public:
explicit NodeLocationsForWays(TStoragePosIDs& storage_pos,
TStorageNegIDs& storage_neg = get_dummy()) noexcept :
m_storage_pos(storage_pos),
m_storage_neg(storage_neg) {
}
NodeLocationsForWays(const NodeLocationsForWays&) = delete;
NodeLocationsForWays& operator=(const NodeLocationsForWays&) = delete;
NodeLocationsForWays(NodeLocationsForWays&&) noexcept = default;
NodeLocationsForWays& operator=(NodeLocationsForWays&&) noexcept = default;
~NodeLocationsForWays() noexcept = default;
void ignore_errors() {
m_ignore_errors = true;
}
TStoragePosIDs& storage_pos() noexcept {
return m_storage_pos;
}
TStorageNegIDs& storage_neg() noexcept {
return m_storage_neg;
}
void node(const osmium::Node& node) {
if (node.positive_id() < m_last_id) {
m_must_sort = true;
}
m_last_id = node.positive_id();
const auto id = node.id();
if (id >= 0) {
m_storage_pos.set(static_cast<osmium::unsigned_object_id_type>( id), node.location());
} else {
m_storage_neg.set(static_cast<osmium::unsigned_object_id_type>(-id), node.location());
}
}
osmium::Location get_node_location(const osmium::object_id_type id) const {
if (id >= 0) {
return m_storage_pos.get_noexcept(static_cast<osmium::unsigned_object_id_type>(id));
}
return m_storage_neg.get_noexcept(static_cast<osmium::unsigned_object_id_type>(-id));
}
void way(osmium::Way& way) {
if (m_must_sort) {
m_storage_pos.sort();
m_storage_neg.sort();
m_must_sort = false;
m_last_id = std::numeric_limits<osmium::unsigned_object_id_type>::max();
}
bool error = false;
for (auto& node_ref : way.nodes()) {
node_ref.set_location(get_node_location(node_ref.ref()));
if (!node_ref.location()) {
error = true;
}
}
if (!m_ignore_errors && error) {
throw osmium::not_found{"location for one or more nodes not found in node location index"};
}
}
void clear() {
m_storage_pos.clear();
m_storage_neg.clear();
}
}; // class NodeLocationsForWays
} // namespace handler
} // namespace osmium
#endif // OSMIUM_HANDLER_NODE_LOCATIONS_FOR_WAYS_HPP
osmium::Location
Definition location.hpp:271
osmium::Node
Definition node.hpp:48
osmium::Way
Definition way.hpp:72
osmium::handler::Handler
Definition handler.hpp:71
osmium::handler::NodeLocationsForWays
Definition node_locations_for_ways.hpp:64
osmium::handler::NodeLocationsForWays::storage_pos
TStoragePosIDs & storage_pos() noexcept
Definition node_locations_for_ways.hpp:116
osmium::handler::NodeLocationsForWays::based_on_map
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
osmium::handler::NodeLocationsForWays::way
void way(osmium::Way &way)
Definition node_locations_for_ways.hpp:155
osmium::handler::NodeLocationsForWays::m_last_id
osmium::unsigned_object_id_type m_last_id
Definition node_locations_for_ways.hpp:83
osmium::handler::NodeLocationsForWays::NodeLocationsForWays
NodeLocationsForWays(TStoragePosIDs &storage_pos, TStorageNegIDs &storage_neg=get_dummy()) noexcept
Definition node_locations_for_ways.hpp:98
osmium::handler::NodeLocationsForWays::get_node_location
osmium::Location get_node_location(const osmium::object_id_type id) const
Definition node_locations_for_ways.hpp:144
osmium::handler::NodeLocationsForWays::m_storage_pos
TStoragePosIDs & m_storage_pos
Object that handles the actual storage of the node locations (with positive IDs).
Definition node_locations_for_ways.hpp:78
osmium::handler::NodeLocationsForWays::m_ignore_errors
bool m_ignore_errors
Definition node_locations_for_ways.hpp:85
osmium::handler::NodeLocationsForWays::storage_neg
TStorageNegIDs & storage_neg() noexcept
Definition node_locations_for_ways.hpp:120
osmium::handler::NodeLocationsForWays::index_neg_type
TStorageNegIDs index_neg_type
Definition node_locations_for_ways.hpp:73
osmium::handler::NodeLocationsForWays::node
void node(const osmium::Node &node)
Definition node_locations_for_ways.hpp:127
osmium::handler::NodeLocationsForWays::get_dummy
static dummy_type & get_dummy()
Definition node_locations_for_ways.hpp:91
osmium::handler::NodeLocationsForWays::NodeLocationsForWays
NodeLocationsForWays(const NodeLocationsForWays &)=delete
osmium::handler::NodeLocationsForWays::operator=
NodeLocationsForWays & operator=(const NodeLocationsForWays &)=delete
osmium::handler::NodeLocationsForWays::ignore_errors
void ignore_errors()
Definition node_locations_for_ways.hpp:112
osmium::handler::NodeLocationsForWays::m_storage_neg
TStorageNegIDs & m_storage_neg
Object that handles the actual storage of the node locations (with negative IDs).
Definition node_locations_for_ways.hpp:81
osmium::handler::NodeLocationsForWays::clear
void clear()
Definition node_locations_for_ways.hpp:179
osmium::handler::NodeLocationsForWays::index_pos_type
TStoragePosIDs index_pos_type
Definition node_locations_for_ways.hpp:72
osmium::handler::NodeLocationsForWays::m_must_sort
bool m_must_sort
Definition node_locations_for_ways.hpp:87
osmium::handler::NodeLocationsForWays::NodeLocationsForWays
NodeLocationsForWays(NodeLocationsForWays &&) noexcept=default
osmium::index::map::Dummy
Definition dummy.hpp:53
dummy.hpp
handler.hpp
index.hpp
location.hpp
osmium
Namespace for everything in the Osmium library.
Definition assembler.hpp:53
osmium::object_id_type
int64_t object_id_type
Type for OSM object (node, way, or relation) IDs.
Definition types.hpp:45
osmium::item_type::node
@ node
osmium::item_type::way
@ way
osmium::unsigned_object_id_type
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
node.hpp
node_locations_map.hpp
node_ref.hpp
osmium::not_found
Definition index.hpp:50
types.hpp
way.hpp