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[traffic] Calculate segment weight based on road ref

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Signed-off-by: mvglasow <michael -at- vonglasow.com>
This commit is contained in:
mvglasow
2025-10-14 21:41:22 +03:00
parent c9f50cdc72
commit f07c8d66d8
2 changed files with 205 additions and 6 deletions
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37
libs/traffxml/traff_decoder.hpp
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@@ -295,6 +295,20 @@ public:
*/
double CalcOffroad(ms::LatLon const & from, ms::LatLon const & to, Purpose purpose) const override;
double CalcSegmentWeight(routing::Segment const & segment, routing::RoadGeometry const & road, Purpose purpose) const override;
/**
* @brief Determines the penalty factor based on how two reference numbers match.
*
* Rules are subject to change.
*
* @param ref The reference number of the current segment, compared against `m_roadRef`.
*
* @return 1 for a perfect match (refs are assumed to refer to the same object), `kAttributePenalty`
* for a mismatch (refs are assumed to refer to different objects) or`kReducedAttributePenalty` for
* a partial match (unclear whether both refs refer to the same object).
*/
double GetRoadRefPenalty(std::string & ref) const;
double GetUTurnPenalty(Purpose /* purpose */) const override;
double GetTurnPenalty(Purpose purpose, double angle, routing::RoadGeometry const & from_road,
routing::RoadGeometry const & to_road, bool is_left_hand_traffic = false) const override;
@@ -378,6 +392,11 @@ private:
std::shared_ptr<routing::NumMwmIds> m_numMwmIds = std::make_shared<routing::NumMwmIds>();
std::unique_ptr<routing::IRouter> m_router;
std::optional<traffxml::TraffMessage> m_message = std::nullopt;
/**
* @brief The road ref of `m_message`, parsed with `ParseRef()`
*/
std::vector<std::string> m_roadRef;
};
/**
@@ -389,4 +408,22 @@ using DefaultTraffDecoder = RoutingTraffDecoder;
traffxml::RoadClass GetRoadClass(routing::HighwayType highwayType);
double GetRoadClassPenalty(traffxml::RoadClass lhs, traffxml::RoadClass rhs);
bool IsRamp(routing::HighwayType highwayType);
/**
* @brief Breaks down a ref into groups for comparison.
*
* The result of this function can be used to determine if two reference numbers match partially
* (such as `A4`, `A4bis` and `A4.1`).
*
* Implementation details may change; currently the following applies:
*
* A whitespace character (or sequence of whitespace characters), or a switch between letters and
* digits, starts a new group.
*
* Letters are converted to lowercase.
*
* For example, each of `A42`, `A 42` and `-a42` would be broken down into `a, 42`, whereas `A4.2`
* would be broken down into `a, 4, 2`.
*/
std::vector<std::string> ParseRef(std::string & ref);
} // namespace traffxml