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64 lines
2.6 KiB
C++
64 lines
2.6 KiB
C++
#pragma once
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#include "routing/directions_engine.hpp"
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#include "routing_common/num_mwm_id.hpp"
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#include "routing/route.hpp"
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#include <map>
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#include <memory>
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#include <vector>
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namespace routing
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{
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class CarDirectionsEngine : public DirectionsEngine
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{
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public:
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CarDirectionsEngine(MwmDataSource & dataSource, std::shared_ptr<NumMwmIds> numMwmIds);
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protected:
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virtual size_t GetTurnDirection(turns::IRoutingResult const & result, size_t const outgoingSegmentIndex,
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NumMwmIds const & numMwmIds,
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RoutingSettings const & vehicleSettings, turns::TurnItem & turn);
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virtual void FixupTurns(std::vector<RouteSegment> & routeSegments);
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};
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/*!
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* \brief Selects lanes which are recommended for an end user.
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*/
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void SelectRecommendedLanes(std::vector<RouteSegment> & routeSegments);
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void FixupCarTurns(std::vector<RouteSegment> & routeSegments);
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/*!
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* \brief Finds an U-turn that starts from master segment and returns how many segments it lasts.
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* \returns an index in |segments| that has the opposite direction with master segment
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* (|segments[currentSegment - 1]|) and 0 if there is no UTurn.
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* \warning |currentSegment| must be greater than 0.
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*/
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size_t CheckUTurnOnRoute(turns::IRoutingResult const & result, size_t const outgoingSegmentIndex,
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NumMwmIds const & numMwmIds, RoutingSettings const & vehicleSettings,
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turns::TurnItem & turn);
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/*!
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* \brief Calculates a turn instruction if the ingoing edge or (and) the outgoing edge belongs to a
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* roundabout.
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* \return Returns one of the following results:
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* - TurnDirection::EnterRoundAbout if the ingoing edge does not belong to a roundabout
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* and the outgoing edge belongs to a roundabout.
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* - TurnDirection::StayOnRoundAbout if the ingoing edge and the outgoing edge belong to a
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* roundabout
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* and there is a reasonalbe way to leave the junction besides the outgoing edge.
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* This function does not return TurnDirection::StayOnRoundAbout for small ways to leave the
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* roundabout.
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* - TurnDirection::NoTurn if the ingoing edge and the outgoing edge belong to a roundabout
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* (a) and there is a single way (outgoing edge) to leave the junction.
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* (b) and there is a way(s) besides outgoing edge to leave the junction (the roundabout)
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* but it is (they are) relevantly small.
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*/
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turns::CarDirection GetRoundaboutDirectionBasic(bool isIngoingEdgeRoundabout, bool isOutgoingEdgeRoundabout,
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bool isMultiTurnJunction, bool keepTurnByHighwayClass);
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} // namespace routing
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