5266ac1635
Currently OSRM only supports turn restrictions with a single via-node or one via-way. OSM allows for multiple via-ways to represent longer and more complex restrictions. This PR extends the use of duplicate nodes for representng via-way turn restrictions to also support multi via-way restrictions. Effectively, this increases the edge-based graph size by the number of edges in multi via-way restrictions. However, given the low number of these restrictions it has little effect on total graph size. In addition, we add a new step in the extraction phase that constructs a restriction graph to support more complex relationships between restrictions, such as nested restrictions and overlapping restrictions.
102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
#ifndef EXTRACTOR_CALLBACKS_HPP
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#define EXTRACTOR_CALLBACKS_HPP
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#include "extractor/class_data.hpp"
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#include "extractor/turn_lane_types.hpp"
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#include "util/typedefs.hpp"
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#include <boost/functional/hash.hpp>
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#include <boost/optional/optional_fwd.hpp>
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#include <string>
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#include <unordered_map>
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namespace osmium
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{
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class Node;
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class Way;
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class Relation;
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} // namespace osmium
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namespace std
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{
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template <> struct hash<std::tuple<std::string, std::string, std::string, std::string, std::string>>
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{
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std::size_t operator()(
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const std::tuple<std::string, std::string, std::string, std::string, std::string> &mk)
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const noexcept
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{
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std::size_t seed = 0;
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boost::hash_combine(seed, std::get<0>(mk));
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boost::hash_combine(seed, std::get<1>(mk));
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boost::hash_combine(seed, std::get<2>(mk));
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boost::hash_combine(seed, std::get<3>(mk));
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boost::hash_combine(seed, std::get<4>(mk));
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return seed;
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}
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};
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} // namespace std
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namespace osrm
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{
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namespace extractor
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{
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class ExtractionContainers;
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struct ExtractionNode;
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struct ExtractionWay;
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struct ExtractionRelation;
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struct ProfileProperties;
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struct InputTurnRestriction;
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struct InputManeuverOverride;
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/**
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* This class is used by the extractor with the results of the
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* osmium based parsing and the customization through the lua profile.
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*
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* It mediates between the multi-threaded extraction process and the external memory containers.
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* Thus the synchronization is handled inside of the extractor.
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*/
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class ExtractorCallbacks
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{
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private:
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// used to deduplicate street names, refs, destinations, pronunciation, exits:
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// actually maps to name ids
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using MapKey = std::tuple<std::string, std::string, std::string, std::string, std::string>;
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using MapVal = unsigned;
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using StringMap = std::unordered_map<MapKey, MapVal>;
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StringMap string_map;
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ExtractionContainers &external_memory;
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std::unordered_map<std::string, ClassData> &classes_map;
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LaneDescriptionMap &lane_description_map;
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bool fallback_to_duration;
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bool force_split_edges;
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public:
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using ClassesMap = std::unordered_map<std::string, ClassData>;
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explicit ExtractorCallbacks(ExtractionContainers &extraction_containers,
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std::unordered_map<std::string, ClassData> &classes_map,
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LaneDescriptionMap &lane_description_map,
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const ProfileProperties &properties);
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ExtractorCallbacks(const ExtractorCallbacks &) = delete;
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ExtractorCallbacks &operator=(const ExtractorCallbacks &) = delete;
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// warning: caller needs to take care of synchronization!
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void ProcessNode(const osmium::Node ¤t_node, const ExtractionNode &result_node);
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// warning: caller needs to take care of synchronization!
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void ProcessRestriction(const InputTurnRestriction &restriction);
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// warning: caller needs to take care of synchronization!
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void ProcessWay(const osmium::Way ¤t_way, const ExtractionWay &result_way);
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// warning: caller needs to take care of synchronization!
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void ProcessManeuverOverride(const InputManeuverOverride &override);
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};
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} // namespace extractor
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} // namespace osrm
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#endif /* EXTRACTOR_CALLBACKS_HPP */
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