fix initial maneuvers

include/engine/guidance/assemble_geometry.hpp

@@ -51,6 +51,7 @@ LegGeometry assembleGeometry(const DataFacadeT &facade,
         current_distance +=
             util::coordinate_calculation::haversineDistance(prev_coordinate, coordinate);
 
+        //all changes to this check have to be matched with assemble_steps
         if (path_point.turn_instruction.type != extractor::guidance::TurnType::NoTurn)
         {
             geometry.segment_distances.push_back(current_distance);

include/engine/guidance/assemble_steps.hpp

@@ -25,9 +25,13 @@ namespace guidance
 namespace detail
 {
 StepManeuver stepManeuverFromGeometry(extractor::guidance::TurnInstruction instruction,
-                                      const WaypointType waypoint_type,
                                       const LegGeometry &leg_geometry,
                                       const std::size_t segment_index);
+
+StepManeuver stepManeuverFromGeometry(extractor::guidance::TurnInstruction instruction,
+                                      const WaypointType waypoint_type,
+                                      const LegGeometry &leg_geometry);
+
 } // ns detail
 
 template <typename DataFacadeT>
@@ -39,7 +43,7 @@ std::vector<RouteStep> assembleSteps(const DataFacadeT &facade,
                                      const bool source_traversed_in_reverse,
                                      const bool target_traversed_in_reverse)
 {
-    const double constexpr ZERO_DURACTION = 0., ZERO_DISTANCE = 0., NO_BEARING = 0.;
+    const double constexpr ZERO_DURACTION = 0., ZERO_DISTANCE = 0.;
     const EdgeWeight source_duration =
         source_traversed_in_reverse ? source_node.reverse_weight : source_node.forward_weight;
     const auto source_mode = source_traversed_in_reverse ? source_node.backward_travel_mode
@@ -67,8 +71,7 @@ std::vector<RouteStep> assembleSteps(const DataFacadeT &facade,
         distance_to_start >= MINIMAL_RELATIVE_DISTANCE &&
                 distance_to_start <= MAXIMAL_RELATIVE_DISTANCE
             ? angleToDirectionModifier(util::coordinate_calculation::computeAngle(
-                  source_node.input_location, leg_geometry.locations[0],
+                  source_node.input_location, leg_geometry.locations[0], leg_geometry.locations[1]))
-                  leg_geometry.locations[1]))
             : extractor::guidance::DirectionModifier::UTurn;
 
     if (leg_data.size() > 0)
@@ -77,7 +80,8 @@ std::vector<RouteStep> assembleSteps(const DataFacadeT &facade,
         StepManeuver maneuver = detail::stepManeuverFromGeometry(
             extractor::guidance::TurnInstruction{extractor::guidance::TurnType::NoTurn,
                                                  initial_modifier},
-            WaypointType::Depart, leg_geometry, segment_index);
+            WaypointType::Depart, leg_geometry);
+        maneuver.location = source_node.location;
 
         // PathData saves the information we need of the segment _before_ the turn,
         // but a RouteStep is with regard to the segment after the turn.
@@ -88,6 +92,7 @@ std::vector<RouteStep> assembleSteps(const DataFacadeT &facade,
         {
             segment_duration += path_point.duration_until_turn;
 
+            // all changes to this check have to be matched with assemble_geometry
             if (path_point.turn_instruction.type != extractor::guidance::TurnType::NoTurn)
             {
                 BOOST_ASSERT(segment_duration >= 0);
@@ -102,8 +107,7 @@ std::vector<RouteStep> assembleSteps(const DataFacadeT &facade,
                                           leg_geometry.FrontIndex(segment_index),
                                           leg_geometry.BackIndex(segment_index) + 1});
                 maneuver = detail::stepManeuverFromGeometry(path_point.turn_instruction,
-                                                            WaypointType::None, leg_geometry,
+                                                            leg_geometry, segment_index);
-                                                            segment_index);
                 segment_index++;
                 segment_duration = 0;
             }
@@ -129,14 +133,10 @@ std::vector<RouteStep> assembleSteps(const DataFacadeT &facade,
         // |---| source_duration
         // |---------| target_duration
 
-        StepManeuver maneuver = {source_node.location,
+        StepManeuver maneuver = detail::stepManeuverFromGeometry(
-                                 NO_BEARING,
+            extractor::guidance::TurnInstruction{extractor::guidance::TurnType::NoTurn,
-                                 NO_BEARING,
+                                                 initial_modifier},
-                                 extractor::guidance::TurnInstruction{
+            WaypointType::Depart, leg_geometry);
-                                     extractor::guidance::TurnType::NoTurn, initial_modifier},
-                                 WaypointType::Depart,
-                                 INVALID_EXIT_NR,
-                                 INVALID_EXIT_NR};
         int duration = target_duration - source_duration;
         BOOST_ASSERT(duration >= 0);
 
@@ -162,20 +162,15 @@ std::vector<RouteStep> assembleSteps(const DataFacadeT &facade,
                   target_node.input_location))
             : extractor::guidance::DirectionModifier::UTurn;
     // This step has length zero, the only reason we need it is the target location
-    steps.push_back(
+    auto final_maneuver = detail::stepManeuverFromGeometry(
-        RouteStep{target_node.name_id,
+        extractor::guidance::TurnInstruction{extractor::guidance::TurnType::NoTurn, final_modifier},
+        WaypointType::Arrive, leg_geometry);
+    steps.push_back(RouteStep{target_node.name_id,
                               facade.GetNameForID(target_node.name_id),
                               ZERO_DURACTION,
                               ZERO_DISTANCE,
                               target_mode,
-                  StepManeuver{target_node.location,
+                              final_maneuver,
-                               NO_BEARING,
-                               NO_BEARING,
-                               extractor::guidance::TurnInstruction{
-                                   extractor::guidance::TurnType::NoTurn, final_modifier},
-                               WaypointType::Arrive,
-                               INVALID_EXIT_NR,
-                               INVALID_EXIT_NR},
                               leg_geometry.locations.size(),
                               leg_geometry.locations.size()});
 

src/engine/guidance/assemble_steps.cpp

@@ -12,8 +12,41 @@ namespace guidance
 {
 namespace detail
 {
+
 StepManeuver stepManeuverFromGeometry(extractor::guidance::TurnInstruction instruction,
                                       const WaypointType waypoint_type,
+                                      const LegGeometry &leg_geometry)
+{
+    BOOST_ASSERT(waypoint_type != WaypointType::None);
+    BOOST_ASSERT(leg_geometry.locations.size() >= 2);
+
+    double pre_turn_bearing = 0, post_turn_bearing = 0;
+    Coordinate turn_coordinate;
+    if (waypoint_type == WaypointType::Arrive)
+    {
+        turn_coordinate = leg_geometry.locations.front();
+        const auto post_turn_coordinate = *(leg_geometry.locations.begin() + 1);
+        post_turn_bearing =
+            util::coordinate_calculation::bearing(turn_coordinate, post_turn_coordinate);
+    }
+    else
+    {
+        BOOST_ASSERT(waypoint_type == WaypointType::Depart);
+        turn_coordinate = leg_geometry.locations.back();
+        const auto pre_turn_coordinate = *(leg_geometry.locations.end() - 2);
+        pre_turn_bearing =
+            util::coordinate_calculation::bearing(pre_turn_coordinate, turn_coordinate);
+    }
+    return StepManeuver{turn_coordinate,
+                        pre_turn_bearing,
+                        post_turn_bearing,
+                        instruction,
+                        waypoint_type,
+                        INVALID_EXIT_NR,
+                        INVALID_EXIT_NR};
+}
+
+StepManeuver stepManeuverFromGeometry(extractor::guidance::TurnInstruction instruction,
                                       const LegGeometry &leg_geometry,
                                       const std::size_t segment_index)
 {
@@ -35,7 +68,7 @@ StepManeuver stepManeuverFromGeometry(extractor::guidance::TurnInstruction instr
                         pre_turn_bearing,
                         post_turn_bearing,
                         instruction,
-                        waypoint_type,
+                        WaypointType::None,
                         INVALID_EXIT_NR,
                         INVALID_EXIT_NR};
 }