osrm-backend/include/engine/routing_algorithms/map_matching.hpp

#ifndef MAP_MATCHING_HPP
#define MAP_MATCHING_HPP

#include "engine/algorithm.hpp"
#include "engine/datafacade.hpp"
#include "engine/map_matching/sub_matching.hpp"
#include "engine/search_engine_data.hpp"

#include <vector>

namespace osrm
{
namespace engine
{
namespace routing_algorithms
{

using CandidateList = std::vector<PhantomNodeWithDistance>;
using CandidateLists = std::vector<CandidateList>;
using SubMatchingList = std::vector<map_matching::SubMatching>;
static const constexpr double DEFAULT_GPS_PRECISION = 5;

//[1] "Hidden Markov Map Matching Through Noise and Sparseness";
//     P. Newson and J. Krumm; 2009; ACM GIS
template <typename Algorithm>
SubMatchingList mapMatching(SearchEngineData<Algorithm> &engine_working_data,
                            const DataFacade<Algorithm> &facade,
                            const CandidateLists &candidates_list,
                            const std::vector<util::Coordinate> &trace_coordinates,
                            const std::vector<unsigned> &trace_timestamps,
                            const std::vector<boost::optional<double>> &trace_gps_precision,
                            const bool allow_splitting);

} // namespace routing_algorithms
} // namespace engine
} // namespace osrm

#endif /* MAP_MATCHING_HPP */