trajectory_monitor.h

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/* Author: Ioan Sucan */

#ifndef MOVEIT_PLANNING_SCENE_MONITOR_TRAJECTORY_MONITOR_
#define MOVEIT_PLANNING_SCENE_MONITOR_TRAJECTORY_MONITOR_

#include <moveit/planning_scene_monitor/current_state_monitor.h>
#include <moveit/robot_trajectory/robot_trajectory.h>
#include <boost/thread.hpp>

namespace planning_scene_monitor
{

typedef boost::function<void(const robot_state::RobotStateConstPtr &state, const ros::Time &stamp)> TrajectoryStateAddedCallback;

class TrajectoryMonitor
{
public:

  TrajectoryMonitor(const CurrentStateMonitorConstPtr &state_monitor, double sampling_frequency = 5.0);

  ~TrajectoryMonitor();

  void startTrajectoryMonitor();

  void stopTrajectoryMonitor();

  void clearTrajectory();

  bool isActive() const;

  double getSamplingFrequency() const
  {
    return sampling_frequency_;
  }

  void setSamplingFrequency(double sampling_frequency);

  const robot_trajectory::RobotTrajectory& getTrajectory()
  {
    return trajectory_;
  }

  void swapTrajectory(robot_trajectory::RobotTrajectory &other)
  {
    trajectory_.swap(other);
  }

  void setOnStateAddCallback(const TrajectoryStateAddedCallback &callback)
  {
    state_add_callback_ = callback;
  }

private:

  void recordStates();

  CurrentStateMonitorConstPtr current_state_monitor_;
  double sampling_frequency_;

  robot_trajectory::RobotTrajectory trajectory_;
  ros::Time trajectory_start_time_;
  ros::Time last_recorded_state_time_;

  boost::scoped_ptr<boost::thread> record_states_thread_;
  TrajectoryStateAddedCallback state_add_callback_;
};

typedef boost::shared_ptr<TrajectoryMonitor> TrajectoryMonitorPtr;
typedef boost::shared_ptr<const TrajectoryMonitor> TrajectoryMonitorConstPtr;
}

#endif