121 lines
3.8 KiB
C++
121 lines
3.8 KiB
C++
#ifndef ENGINE_RESPONSE_OBJECTS_HPP_
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#define ENGINE_RESPONSE_OBJECTS_HPP_
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#include "extractor/travel_mode.hpp"
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#include "guidance/turn_instruction.hpp"
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#include "engine/guidance/leg_geometry.hpp"
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#include "engine/guidance/route.hpp"
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#include "engine/guidance/route_leg.hpp"
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#include "engine/guidance/route_step.hpp"
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#include "engine/guidance/step_maneuver.hpp"
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#include "engine/polyline_compressor.hpp"
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#include "util/coordinate.hpp"
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#include "util/json_container.hpp"
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#include <boost/optional.hpp>
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#include <algorithm>
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#include <iterator>
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#include <string>
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#include <vector>
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namespace osrm
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{
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namespace engine
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{
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struct Hint;
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namespace api
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{
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namespace json
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{
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namespace detail
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{
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// Check whether to include a modifier in the result of the API
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inline bool isValidModifier(const guidance::StepManeuver maneuver)
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{
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return (maneuver.waypoint_type == guidance::WaypointType::None ||
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maneuver.instruction.direction_modifier != osrm::guidance::DirectionModifier::UTurn);
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}
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inline bool hasValidLanes(const guidance::IntermediateIntersection &intersection)
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{
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return intersection.lanes.lanes_in_turn > 0;
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}
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util::json::Array coordinateToLonLat(const util::Coordinate &coordinate);
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/**
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* Ensures that a bearing value is a whole number, and clamped to the range 0-359
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*/
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inline double roundAndClampBearing(double bearing) { return std::fmod(std::round(bearing), 360); }
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} // namespace detail
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template <unsigned POLYLINE_PRECISION, typename ForwardIter>
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util::json::String makePolyline(ForwardIter begin, ForwardIter end)
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{
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return {encodePolyline<POLYLINE_PRECISION>(begin, end)};
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}
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template <typename ForwardIter>
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util::json::Object makeGeoJSONGeometry(ForwardIter begin, ForwardIter end)
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{
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auto num_coordinates = std::distance(begin, end);
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BOOST_ASSERT(num_coordinates != 0);
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util::json::Object geojson;
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geojson.values["type"] = "LineString";
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util::json::Array coordinates;
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if (num_coordinates > 1)
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{
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coordinates.values.reserve(num_coordinates);
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auto into = std::back_inserter(coordinates.values);
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std::transform(begin, end, into, &detail::coordinateToLonLat);
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}
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else if (num_coordinates > 0)
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{
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// For a single location we create a [location, location] LineString
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// instead of a single Point making the GeoJSON output consistent.
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coordinates.values.reserve(2);
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auto location = detail::coordinateToLonLat(*begin);
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coordinates.values.push_back(location);
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coordinates.values.push_back(location);
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}
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geojson.values["coordinates"] = std::move(coordinates);
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return geojson;
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}
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util::json::Object makeStepManeuver(const guidance::StepManeuver &maneuver);
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util::json::Object makeRouteStep(guidance::RouteStep step, util::json::Value geometry);
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util::json::Object makeRoute(const guidance::Route &route,
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util::json::Array legs,
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boost::optional<util::json::Value> geometry,
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const char *weight_name);
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// Creates a Waypoint without Hint, see the Hint overload below
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util::json::Object
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makeWaypoint(const util::Coordinate &location, const double &distance, std::string name);
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// Creates a Waypoint with Hint, see the overload above when Hint is not needed
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util::json::Object makeWaypoint(const util::Coordinate &location,
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const double &distance,
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std::string name,
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const Hint &hint);
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util::json::Object makeRouteLeg(guidance::RouteLeg leg, util::json::Array steps);
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util::json::Array makeRouteLegs(std::vector<guidance::RouteLeg> legs,
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std::vector<util::json::Value> step_geometries,
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std::vector<util::json::Object> annotations);
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}
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}
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} // namespace engine
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} // namespace osrm
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#endif // ENGINE_GUIDANCE_API_RESPONSE_GENERATOR_HPP_
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