refactor(stability_metrics): rename trajectory lateral displacement function for clarity

Signed-off-by: kyoichi-sugahara <kyoichi.sugahara@tier4.jp>

Author: kyoichi-sugahara

evaluator/autoware_planning_evaluator/include/autoware/planning_evaluator/metrics/stability_metrics.hpp

@@ -56,7 +56,7 @@ Accumulator<double> calcLateralDistance(const Trajectory & traj1, const Trajecto
  * @param [in]  trajectory_eval_time_s time duration for trajectory evaluation in seconds
  * @return statistical accumulator containing the total lateral displacement
  */
-Accumulator<double> calcTrajectoryLateralDisplacement(
+Accumulator<double> calcLookaheadLateralTrajectoryDisplacement(
   const Trajectory traj1, const Trajectory traj2, const nav_msgs::msg::Odometry & ego_odom,
   const double trajectory_eval_time_s);
 

evaluator/autoware_planning_evaluator/src/metrics/stability_metrics.cpp

@@ -98,7 +98,7 @@ Accumulator<double> calcLateralDistance(const Trajectory & traj1, const Trajecto
   return stat;
 }
 
-Accumulator<double> calcTrajectoryLateralDisplacement(
+Accumulator<double> calcLookaheadLateralTrajectoryDisplacement(
   const Trajectory traj1, const Trajectory traj2, const nav_msgs::msg::Odometry & ego_odom,
   const double trajectory_eval_time_s)
 {

evaluator/autoware_planning_evaluator/src/metrics_calculator.cpp

@@ -52,8 +52,8 @@ std::optional<Accumulator<double>> MetricsCalculator::calculate(
       return metrics::calcVelocityDeviation(reference_trajectory_, traj);
     case Metric::lateral_trajectory_displacement_local:
       return metrics::calcLocalLateralTrajectoryDisplacement(previous_trajectory_, traj, ego_pose_);
-    case Metric::trajectory_lateral_displacement_lookahead:
-      return metrics::calcTrajectoryLateralDisplacement(
+    case Metric::lateral_trajectory_displacement_lookahead:
+      return metrics::calcLookaheadLateralTrajectoryDisplacement(
         previous_trajectory_, traj, ego_odometry_, parameters.trajectory.evaluation_time_s);
     case Metric::stability_frechet:
       return metrics::calcFrechetDistance(