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199 | #include <kooling/component/classifier/rail.h>
#include <kooling/datamodel/sensor.h>
#include <boost/range/adaptor/filtered.hpp>
#include <boost/range/adaptor/transformed.hpp>
#include <boost/range/algorithm/find_if.hpp>
#include <boost/range/algorithm/max_element.hpp>
#include <boost/range/join.hpp>
#include <unordered_set>
namespace kooling::component::classifier {
using bbox_t = kooling::geo::bounding_box;
using bboxes_t = kooling::geo::bounding_boxes;
using distance_t = kooling::datamodel::distance;
using multi_line_string_t = kooling::geo::multi_line_string;
using multi_point_t = kooling::geo::multi_point;
using segment_t = kooling::datamodel::segment;
using sensor_data_point_t = kooling::datamodel::sensor_data_point;
using transport_t = kooling::datamodel::transport;
// TODO - find a place for this
static int percent(const size_t num, double percent)
{
return std::ceil(num * percent / 100.);
}
template<typename DPS>
multi_point_t check_stations(
const segment_t& segment,
const DPS& dps,
const multi_point_t& geom,
const distance_t& vicinity,
int min_found,
transport_t what)
{
if (const auto found{ kooling::geo::near(geom, dps, vicinity, min_found * 10) };
found.points.size() >= static_cast<std::size_t>(min_found))
{
PLOG_DEBUG
<< segment.id << ": is_rail (" << what << ") station - yes: "
<< "found: " << found.points.size()
<< " out of: " << boost::size(dps);
return found;
}
else
{
PLOG_DEBUG
<< segment.id << ": is_rail (" << what << ") station - no: "
<< "found: " << found.points.size() << ", required: " << min_found;
return {};
}
}
template<typename Coords>
multi_point_t check_ways(
const segment_t& segment,
const Coords& coords,
const multi_line_string_t& geom,
const distance_t& vicinity,
int min_found_dp,
int min_found_interpolated,
transport_t what)
{
if (const auto found{ kooling::geo::near(geom, coords, vicinity, min_found_dp * 10) };<--- Shadowed declaration
found.points.size() >= static_cast<std::size_t>(min_found_dp))
{
PLOG_DEBUG
<< segment.id << ": is_rail (" << what << ") ways - yes: "
<< "found: " << found.points.size()
<< " out of: " << segment.nof_dps
<< " DPs";
return found;
}
else if (const auto found{ kooling::geo::near(geom, segment.interpolated.points, vicinity, min_found_interpolated * 10) };<--- Shadow variable
found.points.size() >= static_cast<std::size_t>(min_found_interpolated))
{
PLOG_DEBUG
<< segment.id << ": is_rail (" << what << ") ways - yes: "
<< "found: " << found.points.size()
<< " out of: " << segment.interpolated.points.size()
<< " interpolated DPs";
return found;
}
else
{
PLOG_DEBUG
<< segment.id << ": is_rail (" << what << ") ways - no: "
<< "found: " << found.points.size() << ", required: " << min_found_interpolated
<< " out of: " << segment.interpolated.points.size();
return {};
}
}
static std::size_t count_hits(const bboxes_t& bboxes, const multi_point_t& stations, const multi_point_t& ways)
{
if (stations.points.size() == 0)
{
return 0;
}
std::unordered_set<int> hits;
for (const auto& s : boost::join(stations.points, ways.points))
{
const auto it{ boost::range::find_if(bboxes, [&s](const bbox_t& bbox) { return contains(bbox, s); }) };
const auto idx{ std::distance(begin(bboxes), it) };
hits.insert(idx);
}
return hits.size();
}
std::optional<kooling::datamodel::transport> rail::detect(const segment_t& segment, const osm_t& osm) const
{
using namespace boost::adaptors;
const auto segment_coords{ segment.range | transformed([](const auto& dp) { return dp.coord; }) };
PLOG_DEBUG << segment.id << ": is_rail - station and way osm query start";
osm::interface::rail_station_features stations;
osm::interface::rail_way_features ways;
for (const auto& bbox : kooling::geo::make_bounding_box(segment_coords, d_bbox_max_diag))
{
stations += osm->check_rail_stations(add_border(bbox, d_params.vicinity));
ways += osm->check_rail_ways(bbox);
}
PLOG_DEBUG << segment.id << ": is_rail - station and way osm query end";
const auto zones{ kooling::geo::make_bounding_box(boost::make_iterator_range(segment.interpolated.points), distance_t::from_m(100)) };
const auto min_found_dp{ percent(segment.nof_dps, d_params.vicinity_pct) };
const auto min_found_interpolated{ percent(segment.interpolated.points.size(), d_params.vicinity_pct) };
const auto slow_dps{ segment.range
| filtered([&speed = d_params.low_speed](const sensor_data_point_t& dp) { return dp.speed <= speed; })
| transformed([](const auto& dp) { return dp.coord; }) };
int train_hits{};
if (const auto train_stations{ check_stations(segment, slow_dps, stations.train, d_params.train.vicinity, d_params.train.min_found, +transport_t::train) };
!train_stations.points.empty())
{
if (const auto train_ways{ check_ways(segment, segment_coords, ways.train, d_params.vicinity, min_found_dp, min_found_interpolated, +transport_t::train) };
!train_ways.points.empty())
{
train_hits = count_hits(zones, train_stations, train_ways);
}
}
int tram_hits{};
if (const auto tram_stations{ check_stations(segment, slow_dps, stations.tram, d_params.tram.vicinity, d_params.tram.min_found, +transport_t::tram) };
!tram_stations.points.empty())
{
if (const auto tram_ways{ check_ways(segment, segment_coords, ways.tram, d_params.vicinity, min_found_dp, min_found_interpolated, +transport_t::tram) };
!tram_ways.points.empty())
{
tram_hits = count_hits(zones, tram_stations, tram_ways);
}
}
int subway_hits{};
if (const auto subway_stations{ check_stations(segment, segment.interpolated.points, stations.subway, d_params.subway.vicinity, d_params.subway.min_found, +transport_t::subway) };
!subway_stations.points.empty())
{
if (const auto subway_ways{ check_ways(segment, segment_coords, ways.subway, d_params.vicinity, min_found_dp, min_found_interpolated, +transport_t::subway) };
!subway_ways.points.empty())
{
subway_hits = count_hits(zones, subway_stations, subway_ways);
}
}
std::array<std::pair<std::size_t, transport_t>, 3> all_results{{
{ train_hits, +transport_t::train },
{ tram_hits, +transport_t::tram },
{ subway_hits, +transport_t::subway }
}};
const auto& best_match{ *boost::max_element(all_results) };
if (best_match.first == 0)
{
PLOG_DEBUG << segment.id << ": is_rail - no";
return {};
}
for (const auto& r : all_results)
{
PLOG_DEBUG
<< segment.id << ": is_rail (" << r.second._to_string() << ") - "
<< r.first << " (" << 100. * r.first / zones.size() << "%) zones with features";
}
const auto transport{
best_match.second == +transport_t::train && segment.integrated.max_speed >= d_params.high_speed
? +transport_t::highspeedtrain
: best_match.second };
PLOG_DEBUG << segment.id << ": is_rail (" << transport << ") - yes";
return transport;
}
} // namespace kooling::component::classifier
|