99 lines
3.6 KiB
C++
99 lines
3.6 KiB
C++
#ifndef OSRM_EXTRACTOR_GUIDANCE_ROUNDABOUT_HANDLER_HPP_
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#define OSRM_EXTRACTOR_GUIDANCE_ROUNDABOUT_HANDLER_HPP_
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#include "extractor/compressed_edge_container.hpp"
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#include "extractor/guidance/coordinate_extractor.hpp"
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#include "extractor/guidance/intersection.hpp"
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#include "extractor/guidance/intersection_generator.hpp"
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#include "extractor/guidance/intersection_handler.hpp"
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#include "extractor/guidance/roundabout_type.hpp"
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#include "extractor/profile_properties.hpp"
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#include "extractor/query_node.hpp"
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#include "util/name_table.hpp"
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#include "util/node_based_graph.hpp"
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#include "util/typedefs.hpp"
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#include <unordered_set>
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#include <vector>
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namespace osrm
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{
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namespace extractor
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{
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namespace guidance
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{
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namespace detail
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{
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struct RoundaboutFlags
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{
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bool on_roundabout;
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bool can_enter;
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bool can_exit_separately;
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};
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} // namespace detail
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// The roundabout handler processes all roundabout related instructions.
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// It performs both the distinction between rotaries and roundabouts and
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// assigns appropriate entry/exit instructions.
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class RoundaboutHandler : public IntersectionHandler
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{
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public:
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RoundaboutHandler(const util::NodeBasedDynamicGraph &node_based_graph,
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const std::vector<util::Coordinate> &coordinates,
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const CompressedEdgeContainer &compressed_edge_container,
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const util::NameTable &name_table,
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const SuffixTable &street_name_suffix_table,
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const ProfileProperties &profile_properties,
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const IntersectionGenerator &intersection_generator);
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~RoundaboutHandler() override final = default;
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// check whether the handler can actually handle the intersection
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bool canProcess(const NodeID from_nid,
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const EdgeID via_eid,
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const Intersection &intersection) const override final;
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// process the intersection
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Intersection operator()(const NodeID from_nid,
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const EdgeID via_eid,
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Intersection intersection) const override final;
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private:
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detail::RoundaboutFlags getRoundaboutFlags(const NodeID from_nid,
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const EdgeID via_eid,
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const Intersection &intersection) const;
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void invalidateExitAgainstDirection(const NodeID from_nid,
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const EdgeID via_eid,
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Intersection &intersection) const;
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// decide whether we lookk at a roundabout or a rotary
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RoundaboutType getRoundaboutType(const NodeID nid) const;
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// TODO handle bike/walk cases that allow crossing a roundabout!
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// Processing of roundabouts
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// Produces instructions to enter/exit a roundabout or to stay on it.
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// Performs the distinction between roundabout and rotaries.
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Intersection handleRoundabouts(const RoundaboutType roundabout_type,
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const EdgeID via_edge,
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const bool on_roundabout,
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const bool can_exit_roundabout,
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Intersection intersection) const;
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bool
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qualifiesAsRoundaboutIntersection(const std::unordered_set<NodeID> &roundabout_nodes) const;
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const CompressedEdgeContainer &compressed_edge_container;
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const ProfileProperties &profile_properties;
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const CoordinateExtractor coordinate_extractor;
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};
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} // namespace guidance
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} // namespace extractor
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} // namespace osrm
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#endif /*OSRM_EXTRACTOR_GUIDANCE_ROUNDABOUT_HANDLER_HPP_*/
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