FM / plugins

/srv/osrm/osrm-backend/src/engine/plugins/

/srv/osrm/osrm-backend/src/engine/plugins

Name	Size	Mode	Actions
match.cpp	13324	0644	edit dl rm
nearest.cpp	1918	0644	edit dl rm
table.cpp	6562	0644	edit dl rm
tile.cpp	27827	0644	edit dl rm
trip.cpp	11878	0644	edit dl rm
viaroute.cpp	7919	0644	edit dl rm

Edit: /srv/osrm/osrm-backend/src/engine/plugins/tile.cpp (27827B)

#include "guidance/turn_instruction.hpp"

#include "engine/plugins/plugin_base.hpp"
#include "engine/plugins/tile.hpp"

#include "util/coordinate_calculation.hpp"
#include "util/vector_tile.hpp"
#include "util/web_mercator.hpp"

#include <boost/geometry.hpp>
#include <boost/geometry/geometries/geometries.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/multi/geometries/multi_linestring.hpp>

#include <vtzero/builder.hpp>
#include <vtzero/geometry.hpp>
#include <vtzero/index.hpp>

#include <algorithm>
#include <numeric>
#include <string>
#include <string_view>
#include <utility>
#include <vector>

#include <cmath>
#include <cstdint>

namespace osrm::engine::plugins
{

constexpr const static int MIN_ZOOM_FOR_TURNS = 15;

namespace
{

using RTreeLeaf = datafacade::BaseDataFacade::RTreeLeaf;
// Simple container class for WGS84 coordinates
template <typename T> struct Point final
{
    Point(T _x, T _y) : x(_x), y(_y) {}

const T x;
    const T y;
};

// Simple container to hold a bounding box
struct BBox final
{
    BBox(const double _minx, const double _miny, const double _maxx, const double _maxy)
        : minx(_minx), miny(_miny), maxx(_maxx), maxy(_maxy)
    {
    }

double width() const { return maxx - minx; }
    double height() const { return maxy - miny; }

const double minx;
    const double miny;
    const double maxx;
    const double maxy;
};

// Simple container for integer coordinates (i.e. pixel coords)
struct point_type_i final
{
    point_type_i(std::int64_t _x, std::int64_t _y) : x(_x), y(_y) {}

const std::int64_t x;
    const std::int64_t y;
};

using FixedPoint = Point<std::int32_t>;
using FloatPoint = Point<double>;

using FixedLine = std::vector<FixedPoint>;
using FloatLine = std::vector<FloatPoint>;

// We use boost::geometry to clip lines/points that are outside or cross the boundary
// of the tile we're rendering.  We need these types defined to use boosts clipping
// logic
using point_t = boost::geometry::model::point<double, 2, boost::geometry::cs::cartesian>;
using linestring_t = boost::geometry::model::linestring<point_t>;
using box_t = boost::geometry::model::box<point_t>;
using multi_linestring_t = boost::geometry::model::multi_linestring<linestring_t>;
const static box_t clip_box(point_t(-util::vector_tile::BUFFER, -util::vector_tile::BUFFER),
                            point_t(util::vector_tile::EXTENT + util::vector_tile::BUFFER,
                                    util::vector_tile::EXTENT + util::vector_tile::BUFFER));

for (auto const &pt : geo_line)
    {
        double px_merc = pt.x * util::web_mercator::DEGREE_TO_PX;
        double py_merc = util::web_mercator::latToY(util::FloatLatitude{pt.y}) *
                         util::web_mercator::DEGREE_TO_PX;
        // convert lon/lat to tile coordinates
        const auto px = std::round(
            ((px_merc - tile_bbox.minx) * util::web_mercator::TILE_SIZE / tile_bbox.width()) *
            util::vector_tile::EXTENT / util::web_mercator::TILE_SIZE);
        const auto py = std::round(
            ((tile_bbox.maxy - py_merc) * util::web_mercator::TILE_SIZE / tile_bbox.height()) *
            util::vector_tile::EXTENT / util::web_mercator::TILE_SIZE);

boost::geometry::append(unclipped_line, point_t(px, py));
    }

return unclipped_line;
}

std::vector<FixedLine> coordinatesToTileLine(const std::vector<util::Coordinate> &points,
                                             const BBox &tile_bbox)
{
    FloatLine geo_line;
    for (auto const &c : points)
    {
        geo_line.emplace_back(static_cast<double>(util::toFloating(c.lon)),
                              static_cast<double>(util::toFloating(c.lat)));
    }

linestring_t unclipped_line = floatLineToTileLine(geo_line, tile_bbox);

multi_linestring_t clipped_line;
    boost::geometry::intersection(clip_box, unclipped_line, clipped_line);

std::vector<FixedLine> result;

// b::g::intersection might return a line with one point if the
    // original line was very short and coords were dupes
    for (auto const &cl : clipped_line)
    {
        if (cl.size() < 2)
            continue;

FixedLine tile_line;
        for (const auto &p : cl)
            tile_line.emplace_back(p.get<0>(), p.get<1>());

result.emplace_back(std::move(tile_line));
    }

return result;
}

/**
 * Return the x1,y1,x2,y2 pixel coordinates of a line in a given
 * tile.
 *
 * @param start the first coordinate of the line
 * @param target the last coordinate of the line
 * @param tile_bbox the boundaries of the tile, in mercator coordinates
 * @return a FixedLine with coordinates relative to the tile_bbox.
 */
FixedLine coordinatesToTileLine(const util::Coordinate start,
                                const util::Coordinate target,
                                const BBox &tile_bbox)
{
    FloatLine geo_line;
    geo_line.emplace_back(static_cast<double>(util::toFloating(start.lon)),
                          static_cast<double>(util::toFloating(start.lat)));
    geo_line.emplace_back(static_cast<double>(util::toFloating(target.lon)),
                          static_cast<double>(util::toFloating(target.lat)));

linestring_t unclipped_line = floatLineToTileLine(geo_line, tile_bbox);

multi_linestring_t clipped_line;
    boost::geometry::intersection(clip_box, unclipped_line, clipped_line);

FixedLine tile_line;

// b::g::intersection might return a line with one point if the
    // original line was very short and coords were dupes
    if (!clipped_line.empty() && clipped_line[0].size() == 2)
    {
        for (const auto &p : clipped_line[0])
        {
            tile_line.emplace_back(p.get<0>(), p.get<1>());
        }
    }

return tile_line;
}

/**
 * Converts lon/lat into coordinates inside a Mercator projection tile (x/y pixel values)
 *
 * @param point the lon/lat you want the tile coords for
 * @param tile_bbox the mercator boundaries of the tile
 * @return a point (x,y) on the tile defined by tile_bbox
 */
FixedPoint coordinatesToTilePoint(const util::Coordinate point, const BBox &tile_bbox)
{
    const FloatPoint geo_point{static_cast<double>(util::toFloating(point.lon)),
                               static_cast<double>(util::toFloating(point.lat))};

const double px_merc = geo_point.x * util::web_mercator::DEGREE_TO_PX;
    const double py_merc = util::web_mercator::latToY(util::FloatLatitude{geo_point.y}) *
                           util::web_mercator::DEGREE_TO_PX;

const auto px = static_cast<std::int32_t>(std::round(
        ((px_merc - tile_bbox.minx) * util::web_mercator::TILE_SIZE / tile_bbox.width()) *
        util::vector_tile::EXTENT / util::web_mercator::TILE_SIZE));
    const auto py = static_cast<std::int32_t>(std::round(
        ((tile_bbox.maxy - py_merc) * util::web_mercator::TILE_SIZE / tile_bbox.height()) *
        util::vector_tile::EXTENT / util::web_mercator::TILE_SIZE));

return FixedPoint{px, py};
}

std::vector<RTreeLeaf> getEdges(const DataFacadeBase &facade, unsigned x, unsigned y, unsigned z)
{
    double min_lon, min_lat, max_lon, max_lat;

// Convert the z,x,y mercator tile coordinates into WGS84 lon/lat values
    //
    util::web_mercator::xyzToWGS84(
        x, y, z, min_lon, min_lat, max_lon, max_lat, util::web_mercator::TILE_SIZE * 0.10);

util::Coordinate southwest{util::FloatLongitude{min_lon}, util::FloatLatitude{min_lat}};
    util::Coordinate northeast{util::FloatLongitude{max_lon}, util::FloatLatitude{max_lat}};

// Fetch all the segments that are in our bounding box.
    // This hits the OSRM StaticRTree
    return facade.GetEdgesInBox(southwest, northeast);
}

std::vector<std::size_t> getEdgeIndex(const std::vector<RTreeLeaf> &edges)
{
    // In order to ensure consistent tile encoding, we need to process
    // all edges in the same order.  Differences in OSX/Linux/Windows
    // sorting methods mean that GetEdgesInBox doesn't return the same
    // ordered array on all platforms.
    // GetEdgesInBox is marked `const`, so we can't sort the array itself,
    // instead we create an array of indexes and sort that instead.
    std::vector<std::size_t> sorted_edge_indexes(edges.size(), 0);
    std::iota(
        sorted_edge_indexes.begin(), sorted_edge_indexes.end(), 0); // fill with 0,1,2,3,...N-1

// Now, sort that array based on the edges list, using the u/v node IDs
    // as the sort condition
    std::sort(sorted_edge_indexes.begin(),
              sorted_edge_indexes.end(),
              [&edges](const std::size_t &left, const std::size_t &right) -> bool {
                  return (edges[left].u != edges[right].u) ? edges[left].u < edges[right].u
                                                           : edges[left].v < edges[right].v;
              });

return sorted_edge_indexes;
}

std::vector<NodeID> getSegregatedNodes(const DataFacadeBase &facade,
                                       const std::vector<RTreeLeaf> &edges)
{
    std::vector<NodeID> result;

for (RTreeLeaf const &e : edges)
    {
        if (e.forward_segment_id.enabled && facade.IsSegregated(e.forward_segment_id.id))
            result.push_back(e.forward_segment_id.id);
    }

return result;
}

struct SpeedLayer : public vtzero::layer_builder
{

vtzero::value_index_small_uint uint_index;
    vtzero::value_index<vtzero::double_value_type, float, std::unordered_map> double_index;
    vtzero::value_index_internal<std::unordered_map> string_index;
    vtzero::value_index_bool bool_index;

vtzero::index_value key_speed;
    vtzero::index_value key_is_small;
    vtzero::index_value key_datasource;
    vtzero::index_value key_weight;
    vtzero::index_value key_duration;
    vtzero::index_value key_name;
    vtzero::index_value key_rate;
    vtzero::index_value key_is_startpoint;

SpeedLayer(vtzero::tile_builder &tile)
        : layer_builder(tile, "speeds"), uint_index(*this), double_index(*this),
          string_index(*this), bool_index(*this), key_speed(add_key_without_dup_check("speed")),
          key_is_small(add_key_without_dup_check("is_small")),
          key_datasource(add_key_without_dup_check("datasource")),
          key_weight(add_key_without_dup_check("weight")),
          key_duration(add_key_without_dup_check("duration")),
          key_name(add_key_without_dup_check("name")), key_rate(add_key_without_dup_check("rate")),
          key_is_startpoint(add_key_without_dup_check("is_startpoint"))
    {
    }

}; // struct SpeedLayer

class SpeedLayerFeatureBuilder : public vtzero::linestring_feature_builder
{

SpeedLayer &m_layer;

public:
    SpeedLayerFeatureBuilder(SpeedLayer &layer, uint64_t id)
        : vtzero::linestring_feature_builder(layer), m_layer(layer)
    {
        set_id(id);
    }

void set_speed(unsigned int value)
    {
        add_property(m_layer.key_speed, m_layer.uint_index(std::min(value, 127u)));
    }

void set_is_small(bool value) { add_property(m_layer.key_is_small, m_layer.bool_index(value)); }

void set_datasource(const std::string &value)
    {
        add_property(m_layer.key_datasource,
                     m_layer.string_index(vtzero::encoded_property_value{value}));
    }

void set_weight(double value) { add_property(m_layer.key_weight, m_layer.double_index(value)); }

void set_duration(double value)
    {
        add_property(m_layer.key_duration, m_layer.double_index(value));
    }

void set_name(const std::string_view value)
    {
        add_property(
            m_layer.key_name,
            m_layer.string_index(vtzero::encoded_property_value{value.data(), value.size()}));
    }

void set_rate(double value) { add_property(m_layer.key_rate, m_layer.double_index(value)); }

void set_is_startpoint(bool value)
    {
        add_property(m_layer.key_is_startpoint, m_layer.bool_index(value));
    }

}; // class SpeedLayerFeatureBuilder

struct TurnsLayer : public vtzero::layer_builder
{

vtzero::value_index<vtzero::sint_value_type, int, std::unordered_map> int_index;
    vtzero::value_index<vtzero::float_value_type, float, std::unordered_map> float_index;
    vtzero::value_index_internal<std::unordered_map> string_index;

vtzero::index_value key_bearing_in;
    vtzero::index_value key_turn_angle;
    vtzero::index_value key_cost;
    vtzero::index_value key_weight;
    vtzero::index_value key_turn_type;
    vtzero::index_value key_turn_modifier;

TurnsLayer(vtzero::tile_builder &tile)
        : layer_builder(tile, "turns"), int_index(*this), float_index(*this), string_index(*this),
          key_bearing_in(add_key_without_dup_check("bearing_in")),
          key_turn_angle(add_key_without_dup_check("turn_angle")),
          key_cost(add_key_without_dup_check("cost")),
          key_weight(add_key_without_dup_check("weight")),
          key_turn_type(add_key_without_dup_check("type")),
          key_turn_modifier(add_key_without_dup_check("modifier"))
    {
    }

}; // struct TurnsLayer

class TurnsLayerFeatureBuilder : public vtzero::point_feature_builder
{

TurnsLayer &m_layer;

public:
    TurnsLayerFeatureBuilder(TurnsLayer &layer, uint64_t id)
        : vtzero::point_feature_builder(layer), m_layer(layer)
    {
        set_id(id);
    }

void set_bearing_in(int value)
    {
        add_property(m_layer.key_bearing_in, m_layer.int_index(value));
    }

void set_turn_angle(int value)
    {
        add_property(m_layer.key_turn_angle, m_layer.int_index(value));
    }

void set_cost(float value) { add_property(m_layer.key_cost, m_layer.float_index(value)); }

void set_weight(float value) { add_property(m_layer.key_weight, m_layer.float_index(value)); }

void set_turn(osrm::guidance::TurnInstruction value)
    {
        const auto type = osrm::guidance::internalInstructionTypeToString(value.type);
        const auto modifier = osrm::guidance::instructionModifierToString(value.direction_modifier);
        add_property(
            m_layer.key_turn_type,
            m_layer.string_index(vtzero::encoded_property_value{type.data(), type.size()}));
        add_property(
            m_layer.key_turn_modifier,
            m_layer.string_index(vtzero::encoded_property_value{modifier.data(), modifier.size()}));
    }
}; // class TurnsLayerFeatureBuilder

void encodeVectorTile(const DataFacadeBase &facade,
                      unsigned x,
                      unsigned y,
                      unsigned z,
                      const std::vector<RTreeLeaf> &edges,
                      const std::vector<std::size_t> &sorted_edge_indexes,
                      const std::vector<routing_algorithms::TurnData> &all_turn_data,
                      const std::vector<NodeID> &segregated_nodes,
                      std::string &pbf_buffer)
{
    vtzero::tile_builder tile;

const auto get_geometry_id = [&facade](auto edge) {
        return facade.GetGeometryIndex(edge.forward_segment_id.id).id;
    };

// Convert tile coordinates into mercator coordinates
    double min_mercator_lon, min_mercator_lat, max_mercator_lon, max_mercator_lat;
    util::web_mercator::xyzToMercator(
        x, y, z, min_mercator_lon, min_mercator_lat, max_mercator_lon, max_mercator_lat);
    const BBox tile_bbox{min_mercator_lon, min_mercator_lat, max_mercator_lon, max_mercator_lat};

// XXX leaving in some superfluous scopes to make diff easier to read.
    {
        {
            // Begin the layer features block
            {
                SpeedLayer speeds_layer{tile};

// Each feature gets a unique id, starting at 1
                unsigned id = 1;
                for (const auto &edge_index : sorted_edge_indexes)
                {
                    const auto &edge = edges[edge_index];
                    const auto geometry_id = get_geometry_id(edge);

// Get coordinates for start/end nodes of segment (NodeIDs u and v)
                    const auto a = facade.GetCoordinateOfNode(edge.u);
                    const auto b = facade.GetCoordinateOfNode(edge.v);
                    // Calculate the length in meters
                    const double length =
                        osrm::util::coordinate_calculation::greatCircleDistance(a, b);

const auto forward_weight_range =
                        facade.GetUncompressedForwardWeights(geometry_id);
                    const auto reverse_weight_range =
                        facade.GetUncompressedReverseWeights(geometry_id);
                    const auto forward_duration_range =
                        facade.GetUncompressedForwardDurations(geometry_id);
                    const auto reverse_duration_range =
                        facade.GetUncompressedReverseDurations(geometry_id);
                    const auto forward_datasource_range =
                        facade.GetUncompressedForwardDatasources(geometry_id);
                    const auto reverse_datasource_range =
                        facade.GetUncompressedReverseDatasources(geometry_id);
                    const auto forward_weight = forward_weight_range[edge.fwd_segment_position];
                    const auto reverse_weight = reverse_weight_range[reverse_weight_range.size() -
                                                                     edge.fwd_segment_position - 1];

const auto forward_duration = forward_duration_range[edge.fwd_segment_position];
                    const auto reverse_duration =
                        reverse_duration_range[reverse_duration_range.size() -
                                               edge.fwd_segment_position - 1];
                    const auto forward_datasource_idx =
                        forward_datasource_range(edge.fwd_segment_position);
                    const auto reverse_datasource_idx = reverse_datasource_range(
                        reverse_datasource_range.size() - edge.fwd_segment_position - 1);

const auto is_startpoint = edge.is_startpoint;

const auto component_id = facade.GetComponentID(edge.forward_segment_id.id);
                    const auto name_id = facade.GetNameIndex(edge.forward_segment_id.id);
                    auto name = facade.GetNameForID(name_id);

// If this is a valid forward edge, go ahead and add it to the tile
                    if (forward_duration != SegmentDuration{0} && edge.forward_segment_id.enabled)
                    {
                        // Calculate the speed for this line
                        std::uint32_t speed_kmh_idx = static_cast<std::uint32_t>(
                            round(length / from_alias<double>(forward_duration) * 10 * 3.6));

// Rate values are in meters per weight-unit - and similar to speeds, we
                        // present 1 decimal place of precision (these values are added as
                        // double/10) lower down
                        std::uint32_t forward_rate = static_cast<std::uint32_t>(
                            round(length / from_alias<double>(forward_weight) * 10.));

auto tile_line = coordinatesToTileLine(a, b, tile_bbox);
                        if (!tile_line.empty())
                        {
                            SpeedLayerFeatureBuilder fbuilder{speeds_layer, id};
                            fbuilder.add_linestring_from_container(tile_line);

fbuilder.set_speed(speed_kmh_idx);
                            fbuilder.set_is_small(component_id.is_tiny);
                            fbuilder.set_datasource(
                                std::string(facade.GetDatasourceName(forward_datasource_idx)));
                            fbuilder.set_weight(from_alias<double>(forward_weight) / 10.0);
                            fbuilder.set_duration(from_alias<double>(forward_duration) / 10.0);
                            fbuilder.set_name(name);
                            fbuilder.set_rate(forward_rate / 10.0);
                            fbuilder.set_is_startpoint(is_startpoint);

fbuilder.commit();
                        }
                    }

// Repeat the above for the coordinates reversed and using the `reverse`
                    // properties
                    if (reverse_duration != SegmentDuration{0} && edge.reverse_segment_id.enabled)
                    {
                        // Calculate the speed for this line
                        std::uint32_t speed_kmh_idx = static_cast<std::uint32_t>(
                            round(length / from_alias<double>(reverse_duration) * 10 * 3.6));

// Rate values are in meters per weight-unit - and similar to speeds, we
                        // present 1 decimal place of precision (these values are added as
                        // double/10) lower down
                        std::uint32_t reverse_rate = static_cast<std::uint32_t>(
                            round(length / from_alias<double>(reverse_weight) * 10.));

auto tile_line = coordinatesToTileLine(b, a, tile_bbox);
                        if (!tile_line.empty())
                        {
                            SpeedLayerFeatureBuilder fbuilder{speeds_layer, id};
                            fbuilder.add_linestring_from_container(tile_line);

fbuilder.set_speed(speed_kmh_idx);
                            fbuilder.set_is_small(component_id.is_tiny);
                            fbuilder.set_datasource(
                                std::string(facade.GetDatasourceName(reverse_datasource_idx)));
                            fbuilder.set_weight(from_alias<double>(reverse_weight) / 10.0);
                            fbuilder.set_duration(from_alias<double>(reverse_duration) / 10.0);
                            fbuilder.set_name(name);
                            fbuilder.set_rate(reverse_rate / 10.0);
                            fbuilder.set_is_startpoint(is_startpoint);

fbuilder.commit();
                        }
                    }
                }
            }
        }

// Only add the turn layer to the tile if it has some features (we sometimes won't
        // for tiles of z<16, and tiles that don't show any intersections)
        if (!all_turn_data.empty())
        {
            TurnsLayer turns_layer{tile};
            uint64_t id = 0;
            for (const auto &turn_data : all_turn_data)
            {
                const auto tile_point = coordinatesToTilePoint(turn_data.coordinate, tile_bbox);
                if (boost::geometry::within(point_t(tile_point.x, tile_point.y), clip_box))
                {
                    TurnsLayerFeatureBuilder fbuilder{turns_layer, ++id};
                    fbuilder.add_point(tile_point);

fbuilder.set_bearing_in(turn_data.in_angle);
                    fbuilder.set_turn_angle(turn_data.turn_angle);
                    fbuilder.set_cost(from_alias<double>(turn_data.duration) / 10.0);
                    fbuilder.set_weight(from_alias<double>(turn_data.weight) / 10.0);
                    fbuilder.set_turn(turn_data.turn_instruction);

fbuilder.commit();
                }
            }
        }

// OSM Node tile layer
        {
            std::vector<NodeID> internal_nodes;
            internal_nodes.reserve(edges.size() * 2);
            for (const auto &edge : edges)
            {
                internal_nodes.push_back(edge.u);
                internal_nodes.push_back(edge.v);
            }
            std::sort(internal_nodes.begin(), internal_nodes.end());
            auto new_end = std::unique(internal_nodes.begin(), internal_nodes.end());
            internal_nodes.resize(new_end - internal_nodes.begin());

vtzero::layer_builder osmnodes_layer{tile, "osmnodes"};

for (const auto &internal_node : internal_nodes)
            {
                const auto coord = facade.GetCoordinateOfNode(internal_node);
                const auto tile_point = coordinatesToTilePoint(coord, tile_bbox);
                if (!boost::geometry::within(point_t(tile_point.x, tile_point.y), clip_box))
                {
                    continue;
                }

vtzero::point_feature_builder fbuilder{osmnodes_layer};
                fbuilder.set_id(
                    static_cast<OSMNodeID::value_type>(facade.GetOSMNodeIDOfNode(internal_node)));
                fbuilder.add_point(tile_point);
                fbuilder.commit();
            }
        }

// Internal nodes tile layer
        {
            vtzero::layer_builder internal_nodes_layer{tile, "internal-nodes"};

for (auto edgeNodeID : segregated_nodes)
            {
                auto const geomIndex = facade.GetGeometryIndex(edgeNodeID);

std::vector<util::Coordinate> points;
                if (geomIndex.forward)
                {
                    for (auto const nodeID : facade.GetUncompressedForwardGeometry(geomIndex.id))
                        points.push_back(facade.GetCoordinateOfNode(nodeID));
                }
                else
                {
                    for (auto const nodeID : facade.GetUncompressedReverseGeometry(geomIndex.id))
                        points.push_back(facade.GetCoordinateOfNode(nodeID));
                }

auto tile_lines = coordinatesToTileLine(points, tile_bbox);
                if (!tile_lines.empty())
                {
                    vtzero::linestring_feature_builder fbuilder{internal_nodes_layer};
                    for (auto const &tile_line : tile_lines)
                    {
                        fbuilder.add_linestring_from_container(tile_line);
                    }
                    fbuilder.commit();
                }
            }
        }
    }

tile.serialize(pbf_buffer);
}
} // namespace

Status TilePlugin::HandleRequest(const RoutingAlgorithmsInterface &algorithms,
                                 const api::TileParameters &parameters,
                                 osrm::engine::api::ResultT &result) const
{
    BOOST_ASSERT(parameters.IsValid());

auto &pbf_buffer = result.get<std::string>();
    const auto &facade = algorithms.GetFacade();
    auto edges = getEdges(facade, parameters.x, parameters.y, parameters.z);
    auto segregated_nodes = getSegregatedNodes(facade, edges);

auto edge_index = getEdgeIndex(edges);

std::vector<routing_algorithms::TurnData> turns;

// If we're zooming into 16 or higher, include turn data.  Why?  Because turns make the map
    // really cramped, so we don't bother including the data for tiles that span a large area.
    if (parameters.z >= MIN_ZOOM_FOR_TURNS && algorithms.HasGetTileTurns())
    {
        turns = algorithms.GetTileTurns(edges, edge_index);
    }

encodeVectorTile(facade,
                     parameters.x,
                     parameters.y,
                     parameters.z,
                     edges,
                     edge_index,
                     turns,
                     segregated_nodes,
                     pbf_buffer);

return Status::Ok;
}
} // namespace osrm::engine::plugins

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