teb_config.cpp

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#include <teb_local_planner/teb_config.h>

namespace teb_local_planner
{
    
void TebConfig::loadRosParamFromNodeHandle(const ros::NodeHandle& nh)
{
    
  nh.param("odom_topic", odom_topic, odom_topic);
  nh.param("map_frame", map_frame, map_frame);
  
  // Trajectory
  nh.param("teb_autosize", trajectory.teb_autosize, trajectory.teb_autosize);
  nh.param("dt_ref", trajectory.dt_ref, trajectory.dt_ref);
  nh.param("dt_hysteresis", trajectory.dt_hysteresis, trajectory.dt_hysteresis);
  nh.param("min_samples", trajectory.min_samples, trajectory.min_samples);
  nh.param("global_plan_overwrite_orientation", trajectory.global_plan_overwrite_orientation, trajectory.global_plan_overwrite_orientation);
  nh.param("global_plan_via_point_sep", trajectory.global_plan_viapoint_sep, trajectory.global_plan_viapoint_sep);
  nh.param("via_points_ordered", trajectory.via_points_ordered, trajectory.via_points_ordered);
  nh.param("max_global_plan_lookahead_dist", trajectory.max_global_plan_lookahead_dist, trajectory.max_global_plan_lookahead_dist);
  nh.param("force_reinit_new_goal_dist", trajectory.force_reinit_new_goal_dist, trajectory.force_reinit_new_goal_dist);
  nh.param("feasibility_check_no_poses", trajectory.feasibility_check_no_poses, trajectory.feasibility_check_no_poses);
  nh.param("publish_feedback", trajectory.publish_feedback, trajectory.publish_feedback);
  nh.param("shrink_horizon_backup", trajectory.shrink_horizon_backup, trajectory.shrink_horizon_backup);
  
  // Robot
  nh.param("max_vel_x", robot.max_vel_x, robot.max_vel_x);
  nh.param("max_vel_x_backwards", robot.max_vel_x_backwards, robot.max_vel_x_backwards);
  nh.param("max_vel_theta", robot.max_vel_theta, robot.max_vel_theta);
  nh.param("acc_lim_x", robot.acc_lim_x, robot.acc_lim_x);
  nh.param("acc_lim_theta", robot.acc_lim_theta, robot.acc_lim_theta);
  nh.param("min_turning_radius", robot.min_turning_radius, robot.min_turning_radius);
  nh.param("wheelbase", robot.wheelbase, robot.wheelbase);
  nh.param("cmd_angle_instead_rotvel", robot.cmd_angle_instead_rotvel, robot.cmd_angle_instead_rotvel);
  
  // GoalTolerance
  nh.param("xy_goal_tolerance", goal_tolerance.xy_goal_tolerance, goal_tolerance.xy_goal_tolerance);
  nh.param("yaw_goal_tolerance", goal_tolerance.yaw_goal_tolerance, goal_tolerance.yaw_goal_tolerance);
  nh.param("free_goal_vel", goal_tolerance.free_goal_vel, goal_tolerance.free_goal_vel);
  
  // Obstacles
  nh.param("min_obstacle_dist", obstacles.min_obstacle_dist, obstacles.min_obstacle_dist);
  nh.param("inflation_dist", obstacles.inflation_dist, obstacles.inflation_dist);
  nh.param("include_costmap_obstacles", obstacles.include_costmap_obstacles, obstacles.include_costmap_obstacles);
  nh.param("costmap_obstacles_behind_robot_dist", obstacles.costmap_obstacles_behind_robot_dist, obstacles.costmap_obstacles_behind_robot_dist);
  nh.param("obstacle_poses_affected", obstacles.obstacle_poses_affected, obstacles.obstacle_poses_affected);
  nh.param("costmap_converter_plugin", obstacles.costmap_converter_plugin, obstacles.costmap_converter_plugin);
  nh.param("costmap_converter_spin_thread", obstacles.costmap_converter_spin_thread, obstacles.costmap_converter_spin_thread);
  
  // Optimization
  nh.param("no_inner_iterations", optim.no_inner_iterations, optim.no_inner_iterations);
  nh.param("no_outer_iterations", optim.no_outer_iterations, optim.no_outer_iterations);
  nh.param("optimization_activate", optim.optimization_activate, optim.optimization_activate);
  nh.param("optimization_verbose", optim.optimization_verbose, optim.optimization_verbose);
  nh.param("penalty_epsilon", optim.penalty_epsilon, optim.penalty_epsilon);
  nh.param("weight_max_vel_x", optim.weight_max_vel_x, optim.weight_max_vel_x);
  nh.param("weight_max_vel_theta", optim.weight_max_vel_theta, optim.weight_max_vel_theta);
  nh.param("weight_acc_lim_x", optim.weight_acc_lim_x, optim.weight_acc_lim_x);
  nh.param("weight_acc_lim_theta", optim.weight_acc_lim_theta, optim.weight_acc_lim_theta);
  nh.param("weight_kinematics_nh", optim.weight_kinematics_nh, optim.weight_kinematics_nh);
  nh.param("weight_kinematics_forward_drive", optim.weight_kinematics_forward_drive, optim.weight_kinematics_forward_drive);
  nh.param("weight_kinematics_turning_radius", optim.weight_kinematics_turning_radius, optim.weight_kinematics_turning_radius);
  nh.param("weight_optimaltime", optim.weight_optimaltime, optim.weight_optimaltime);
  nh.param("weight_obstacle", optim.weight_obstacle, optim.weight_obstacle);
  nh.param("weight_inflation", optim.weight_inflation, optim.weight_inflation);
  nh.param("weight_dynamic_obstacle", optim.weight_dynamic_obstacle, optim.weight_dynamic_obstacle);    
  nh.param("weight_viapoint", optim.weight_viapoint, optim.weight_viapoint);
  
  // Homotopy Class Planner
  nh.param("enable_homotopy_class_planning", hcp.enable_homotopy_class_planning, hcp.enable_homotopy_class_planning); 
  nh.param("enable_multithreading", hcp.enable_multithreading, hcp.enable_multithreading); 
  nh.param("simple_exploration", hcp.simple_exploration, hcp.simple_exploration); 
  nh.param("max_number_classes", hcp.max_number_classes, hcp.max_number_classes); 
  nh.param("selection_obst_cost_scale", hcp.selection_obst_cost_scale, hcp.selection_obst_cost_scale);
  nh.param("selection_viapoint_cost_scale", hcp.selection_viapoint_cost_scale, hcp.selection_viapoint_cost_scale);
  nh.param("selection_cost_hysteresis", hcp.selection_cost_hysteresis, hcp.selection_cost_hysteresis); 
  nh.param("selection_alternative_time_cost", hcp.selection_alternative_time_cost, hcp.selection_alternative_time_cost); 
  nh.param("roadmap_graph_samples", hcp.roadmap_graph_no_samples, hcp.roadmap_graph_no_samples); 
  nh.param("roadmap_graph_area_width", hcp.roadmap_graph_area_width, hcp.roadmap_graph_area_width); 
  nh.param("h_signature_prescaler", hcp.h_signature_prescaler, hcp.h_signature_prescaler); 
  nh.param("h_signature_threshold", hcp.h_signature_threshold, hcp.h_signature_threshold); 
  nh.param("obstacle_keypoint_offset", hcp.obstacle_keypoint_offset, hcp.obstacle_keypoint_offset); 
  nh.param("obstacle_heading_threshold", hcp.obstacle_heading_threshold, hcp.obstacle_heading_threshold); 
  nh.param("viapoints_all_candidates", hcp.viapoints_all_candidates, hcp.viapoints_all_candidates);
  nh.param("visualize_hc_graph", hcp.visualize_hc_graph, hcp.visualize_hc_graph); 
  
  checkParameters();
  checkDeprecated(nh);
}

void TebConfig::reconfigure(TebLocalPlannerReconfigureConfig& cfg)
{ 
  boost::mutex::scoped_lock l(config_mutex_);
  
  // Trajectory
  trajectory.teb_autosize = cfg.teb_autosize;
  trajectory.dt_ref = cfg.dt_ref;
  trajectory.dt_hysteresis = cfg.dt_hysteresis;
  trajectory.global_plan_overwrite_orientation = cfg.global_plan_overwrite_orientation;
  trajectory.global_plan_viapoint_sep = cfg.global_plan_viapoint_sep;
  trajectory.via_points_ordered = cfg.via_points_ordered;
  trajectory.max_global_plan_lookahead_dist = cfg.max_global_plan_lookahead_dist;
  trajectory.force_reinit_new_goal_dist = cfg.force_reinit_new_goal_dist;
  trajectory.feasibility_check_no_poses = cfg.feasibility_check_no_poses;
  trajectory.publish_feedback = cfg.publish_feedback;
  trajectory.shrink_horizon_backup = cfg.shrink_horizon_backup;
  
  // Robot     
  robot.max_vel_x = cfg.max_vel_x;
  robot.max_vel_x_backwards = cfg.max_vel_x_backwards;
  robot.max_vel_theta = cfg.max_vel_theta;
  robot.acc_lim_x = cfg.acc_lim_x;
  robot.acc_lim_theta = cfg.acc_lim_theta;
  robot.min_turning_radius = cfg.min_turning_radius;
  robot.wheelbase = cfg.wheelbase;
  robot.cmd_angle_instead_rotvel = cfg.cmd_angle_instead_rotvel;
  
  // GoalTolerance
  goal_tolerance.xy_goal_tolerance = cfg.xy_goal_tolerance;
  goal_tolerance.yaw_goal_tolerance = cfg.yaw_goal_tolerance;
  goal_tolerance.free_goal_vel = cfg.free_goal_vel;
  
  // Obstacles
  obstacles.min_obstacle_dist = cfg.min_obstacle_dist;
  obstacles.inflation_dist = cfg.inflation_dist;
  obstacles.include_costmap_obstacles = cfg.include_costmap_obstacles;
  obstacles.costmap_obstacles_behind_robot_dist = cfg.costmap_obstacles_behind_robot_dist;
  obstacles.obstacle_poses_affected = cfg.obstacle_poses_affected;

  
  // Optimization
  optim.no_inner_iterations = cfg.no_inner_iterations;
  optim.no_outer_iterations = cfg.no_outer_iterations;
  optim.optimization_activate = cfg.optimization_activate;
  optim.optimization_verbose = cfg.optimization_verbose;
  optim.penalty_epsilon = cfg.penalty_epsilon;
  optim.weight_max_vel_x = cfg.weight_max_vel_x;
  optim.weight_max_vel_theta = cfg.weight_max_vel_theta;
  optim.weight_acc_lim_x = cfg.weight_acc_lim_x;
  optim.weight_acc_lim_theta = cfg.weight_acc_lim_theta;
  optim.weight_kinematics_nh = cfg.weight_kinematics_nh;
  optim.weight_kinematics_forward_drive = cfg.weight_kinematics_forward_drive;
  optim.weight_kinematics_turning_radius = cfg.weight_kinematics_turning_radius;
  optim.weight_optimaltime = cfg.weight_optimaltime;
  optim.weight_obstacle = cfg.weight_obstacle;
  optim.weight_inflation = cfg.weight_inflation;
  optim.weight_dynamic_obstacle = cfg.weight_dynamic_obstacle;
  optim.weight_viapoint = cfg.weight_viapoint;
  
  // Homotopy Class Planner
  hcp.enable_multithreading = cfg.enable_multithreading;
  hcp.simple_exploration = cfg.simple_exploration;
  hcp.max_number_classes = cfg.max_number_classes; 
  hcp.selection_cost_hysteresis = cfg.selection_cost_hysteresis;
  hcp.selection_obst_cost_scale = cfg.selection_obst_cost_scale;
  hcp.selection_viapoint_cost_scale = cfg.selection_viapoint_cost_scale;
  hcp.selection_alternative_time_cost = cfg.selection_alternative_time_cost;
  
  hcp.obstacle_keypoint_offset = cfg.obstacle_keypoint_offset;
  hcp.obstacle_heading_threshold = cfg.obstacle_heading_threshold;
  hcp.roadmap_graph_no_samples = cfg.roadmap_graph_no_samples;
  hcp.roadmap_graph_area_width = cfg.roadmap_graph_area_width;
  hcp.h_signature_prescaler = cfg.h_signature_prescaler;
  hcp.h_signature_threshold = cfg.h_signature_threshold;
  hcp.viapoints_all_candidates = cfg.viapoints_all_candidates;
  hcp.visualize_hc_graph = cfg.visualize_hc_graph;
  
  checkParameters();
}
    
    
void TebConfig::checkParameters() const
{
  // positive backward velocity?
  if (robot.max_vel_x_backwards <= 0)
    ROS_WARN("TebLocalPlannerROS() Param Warning: Do not choose max_vel_x_backwards to be <=0. Disable backwards driving by increasing the optimization weight for penalyzing backwards driving.");
  
  // bounds smaller than penalty epsilon
  if (robot.max_vel_x <= optim.penalty_epsilon)
    ROS_WARN("TebLocalPlannerROS() Param Warning: max_vel_x <= penalty_epsilon. The resulting bound is negative. Undefined behavior... Change at least one of them!");
  
  if (robot.max_vel_x_backwards <= optim.penalty_epsilon)
    ROS_WARN("TebLocalPlannerROS() Param Warning: max_vel_x_backwards <= penalty_epsilon. The resulting bound is negative. Undefined behavior... Change at least one of them!");
  
  if (robot.max_vel_theta <= optim.penalty_epsilon)
    ROS_WARN("TebLocalPlannerROS() Param Warning: max_vel_theta <= penalty_epsilon. The resulting bound is negative. Undefined behavior... Change at least one of them!");
  
  if (robot.acc_lim_x <= optim.penalty_epsilon)
    ROS_WARN("TebLocalPlannerROS() Param Warning: acc_lim_x <= penalty_epsilon. The resulting bound is negative. Undefined behavior... Change at least one of them!");
  
  if (robot.acc_lim_theta <= optim.penalty_epsilon)
    ROS_WARN("TebLocalPlannerROS() Param Warning: acc_lim_theta <= penalty_epsilon. The resulting bound is negative. Undefined behavior... Change at least one of them!");
      
  // dt_ref and dt_hyst
  if (trajectory.dt_ref <= trajectory.dt_hysteresis)
    ROS_WARN("TebLocalPlannerROS() Param Warning: dt_ref <= dt_hysteresis. The hysteresis is not allowed to be greater or equal!. Undefined behavior... Change at least one of them!");
    
  // min number of samples
  if (trajectory.min_samples <3)
    ROS_WARN("TebLocalPlannerROS() Param Warning: parameter min_samples is smaller than 3! Sorry, I haven't enough degrees of freedom to plan a trajectory for you. Please increase ...");
  
  // costmap obstacle behind robot
  if (obstacles.costmap_obstacles_behind_robot_dist < 0)
    ROS_WARN("TebLocalPlannerROS() Param Warning: parameter 'costmap_obstacles_behind_robot_dist' should be positive or zero.");
    
  // hcp: obstacle heading threshold
  if (hcp.obstacle_keypoint_offset>=1 || hcp.obstacle_keypoint_offset<=0)
    ROS_WARN("TebLocalPlannerROS() Param Warning: parameter obstacle_heading_threshold must be in the interval ]0,1[. 0=0deg opening angle, 1=90deg opening angle.");
  
  // carlike
  if (robot.cmd_angle_instead_rotvel && robot.wheelbase==0)
    ROS_WARN("TebLocalPlannerROS() Param Warning: parameter cmd_angle_instead_rotvel is non-zero but wheelbase is set to zero: undesired behavior.");
  
  if (robot.cmd_angle_instead_rotvel && robot.min_turning_radius==0)
    ROS_WARN("TebLocalPlannerROS() Param Warning: parameter cmd_angle_instead_rotvel is non-zero but min_turning_radius is set to zero: undesired behavior. You are mixing a carlike and a diffdrive robot");
  
}    

void TebConfig::checkDeprecated(const ros::NodeHandle& nh) const
{
  if (nh.hasParam("line_obstacle_poses_affected") || nh.hasParam("polygon_obstacle_poses_affected"))
    ROS_WARN("TebLocalPlannerROS() Param Warning: 'line_obstacle_poses_affected' and 'polygon_obstacle_poses_affected' are deprecated. They share now the common parameter 'obstacle_poses_affected'.");
  
  if (nh.hasParam("weight_point_obstacle") || nh.hasParam("weight_line_obstacle") || nh.hasParam("weight_poly_obstacle"))
    ROS_WARN("TebLocalPlannerROS() Param Warning: 'weight_point_obstacle', 'weight_line_obstacle' and 'weight_poly_obstacle' are deprecated. They are replaced by the single param 'weight_obstacle'.");
  
  if (nh.hasParam("costmap_obstacles_front_only"))
    ROS_WARN("TebLocalPlannerROS() Param Warning: 'costmap_obstacles_front_only' is deprecated. It is replaced by 'costmap_obstacles_behind_robot_dist' to define the actual area taken into account.");
  
  if (nh.hasParam("costmap_emergency_stop_dist"))
    ROS_WARN("TebLocalPlannerROS() Param Warning: 'costmap_emergency_stop_dist' is deprecated. You can safely remove it from your parameter config.");
  
  if (nh.hasParam("alternative_time_cost"))
    ROS_WARN("TebLocalPlannerROS() Param Warning: 'alternative_time_cost' is deprecated. It has been replaced by 'selection_alternative_time_cost'.");
}

    
} // namespace teb_local_planner