Exemple #1
0
 def __init__(self, particles, state_lock):
     print("Initalized")
     self.odom = OdometryMotionModel(particles, state_lock)
     self.kine = KinematicMotionModel(particles, state_lock)
     self.odomMessage = []
     self.kineMessage = []
     #self.odomParticles = [particles]
     self.odomParticles = np.array([particles])
     self.kineParticles = np.array([particles])
  def __init__(self, n_particles, n_viz_particles,
               motor_state_topic, servo_state_topic, scan_topic, laser_ray_step,
               exclude_max_range_rays, max_range_meters, resample_type,
               speed_to_erpm_offset, speed_to_erpm_gain, steering_angle_to_servo_offset,
               steering_angle_to_servo_gain, car_length):
    self.N_PARTICLES = n_particles # The number of particles
                                   # In this implementation, the total number of 
                                   # particles is constant
    self.N_VIZ_PARTICLES = n_viz_particles # The number of particles to visualize

    self.particle_indices = np.arange(self.N_PARTICLES) # Cached list of particle indices
    self.particles = np.zeros((self.N_PARTICLES,3)) # Numpy matrix of dimension N_PARTICLES x 3
    self.weights = np.ones(self.N_PARTICLES) / float(self.N_PARTICLES) # Numpy matrix containig weight for each particle

    self.state_lock = Lock() # A lock used to prevent concurrency issues. You do not need to worry about this
    
    self.tfl = tf.TransformListener() # Transforms points between coordinate frames

    # Get the map
    print("Getting map from service: ", MAP_TOPIC)
    rospy.wait_for_service(MAP_TOPIC)
    map_msg = rospy.ServiceProxy(MAP_TOPIC, GetMap)().map # The map, will get passed to init of sensor model
    self.map_info = map_msg.info # Save info about map for later use    

    # Create numpy array representing map for later use
    array_255 = np.array(map_msg.data).reshape((map_msg.info.height, map_msg.info.width))
    self.permissible_region = np.zeros_like(array_255, dtype=bool)
    self.permissible_region[array_255==0] = 1 # Numpy array of dimension (map_msg.info.height, map_msg.info.width),
                                              # With values 0: not permissible, 1: permissible    

    # Globally initialize the particles
    self.initialize_global()
   
    # Publish particle filter state
    self.pub_tf = tf.TransformBroadcaster() # Used to create a tf between the map and the laser for visualization    
    self.pose_pub      = rospy.Publisher(PUBLISH_PREFIX + "/inferred_pose", PoseStamped, queue_size = 1) # Publishes the expected pose
    self.particle_pub  = rospy.Publisher(PUBLISH_PREFIX + "/particles", PoseArray, queue_size = 1) # Publishes a subsample of the particles
    self.pub_laser     = rospy.Publisher(PUBLISH_PREFIX + "/scan", LaserScan, queue_size = 1) # Publishes the most recent laser scan
    self.pub_odom      = rospy.Publisher(PUBLISH_PREFIX + "/odom", Odometry, queue_size = 1) # Publishes the path of the car
    
    self.RESAMPLE_TYPE = resample_type # Whether to use naiive or low variance sampling
    self.resampler = ReSampler(self.particles, self.weights, self.state_lock)  # An object used for resampling

    # An object used for applying sensor model
    self.sensor_model = SensorModel(scan_topic, laser_ray_step, exclude_max_range_rays, 
                                    max_range_meters, map_msg, self.particles, self.weights, 
                                    self.state_lock) 

    # An object used for applying kinematic motion model
    self.motion_model = KinematicMotionModel(motor_state_topic, servo_state_topic, 
                                             speed_to_erpm_offset, speed_to_erpm_gain, 
                                             steering_angle_to_servo_offset, steering_angle_to_servo_gain, 
                                             car_length, self.particles, self.state_lock)     
    
    # Subscribe to the '/initialpose' topic. Publised by RVIZ. See clicked_pose_cb function in this file for more info
    self.pose_sub  = rospy.Subscriber("/initialpose", PoseWithCovarianceStamped, self.clicked_pose_cb, queue_size=1)
    
    print('Initialization complete')
  def __init__(self):
    self.MAX_PARTICLES = int(rospy.get_param("~max_particles")) # The maximum number of particles
    self.MAX_VIZ_PARTICLES = int(rospy.get_param("~max_viz_particles")) # The maximum number of particles to visualize

    self.particle_indices = np.arange(self.MAX_PARTICLES)
    self.particles = np.zeros((self.MAX_PARTICLES,3)) # Numpy matrix of dimension MAX_PARTICLES x 3
    self.weights = np.ones(self.MAX_PARTICLES) / float(self.MAX_PARTICLES) # Numpy matrix containig weight for each particle

    self.state_lock = Lock() # A lock used to prevent concurrency issues. You do not need to worry about this
    
    self.tfl = tf.TransformListener()

    # Use the 'static_map' service (launched by MapServer.launch) to get the map
    map_service_name = rospy.get_param("~static_map", "static_map")
    print("Getting map from service: ", map_service_name)
    rospy.wait_for_service(map_service_name)
    map_msg = rospy.ServiceProxy(map_service_name, GetMap)().map # The map, will get passed to init of sensor model
    self.map_info = map_msg.info # Save info about map for later use    

    # Create numpy array representing map for later use
    array_255 = np.array(map_msg.data).reshape((map_msg.info.height, map_msg.info.width))
    self.permissible_region = np.zeros_like(array_255, dtype=bool)
    self.permissible_region[array_255==0] = 1 # Numpy array of dimension (map_msg.info.height, map_msg.info.width),
                                              # With values 0: not permissible, 1: permissible

    # Globally initialize the particles
    self.initialize_global()
   
    # Publish particle filter state
    self.pose_pub      = rospy.Publisher("/pf/ta/viz/inferred_pose", PoseStamped, queue_size = 1) # Publishes the expected pose
    self.particle_pub  = rospy.Publisher("/pf/ta/viz/particles", PoseArray, queue_size = 1) # Publishes a subsample of the particles
    self.pub_tf = tf.TransformBroadcaster() # Used to create a tf between the map and the laser for visualization
    self.pub_laser     = rospy.Publisher("/pf/ta/viz/scan", LaserScan, queue_size = 1) # Publishes the most recent laser scan

    self.pub_odom      = rospy.Publisher("/pf/ta/viz/odom", Odometry, queue_size = 1) # Publishes the path of the car
    ''' HACK VIEW INITIAL DISTRIBUTION'''
    '''
    self.MAX_VIZ_PARTICLES = 1000
    while not rospy.is_shutdown():
      self.visualize()
      rospy.sleep(0.2)
    '''
    self.RESAMPLE_TYPE = rospy.get_param("~resample_type", "naiive") # Whether to use naiive or low variance sampling
    self.resampler = ReSampler(self.particles, self.weights, self.state_lock)  # An object used for resampling

    self.sensor_model = SensorModel(map_msg, self.particles, self.weights, self.state_lock) # An object used for applying sensor model
    # Subscribe to laser scans. For the callback, use self.sensor_model's lidar_cb function
    self.laser_sub = rospy.Subscriber(rospy.get_param("~scan_topic", "/scan"), LaserScan, self.sensor_model.lidar_cb, queue_size=1)
    
    self.MOTION_MODEL_TYPE = rospy.get_param("~motion_model", "kinematic") # Whether to use the odometry or kinematics based motion model
    if self.MOTION_MODEL_TYPE == "kinematic":
      self.motion_model = KinematicMotionModel(self.particles, self.state_lock) # An object used for applying kinematic motion model
      # Subscribe to the state of the vesc (topic: /vesc/sensors/core). For the callback, use self.motion_model's motion_cb function
      self.motion_sub = rospy.Subscriber(rospy.get_param("~motion_topic", "/vesc/sensors/core"), VescStateStamped, self.motion_model.motion_cb, queue_size=1)
    elif self.MOTION_MODEL_TYPE == "odometry":
      self.motion_model = OdometryMotionModel(self.particles, self.state_lock)# An object used for applying odometry motion model
      # Subscribe to the vesc odometry (topic: /vesc/odom). For the callback, use self.motion_model's motion_cb function
      self.motion_sub = rospy.Subscriber(rospy.get_param("~motion_topic", "/vesc/odom"), Odometry, self.motion_model.motion_cb, queue_size=1)
    else:
      print "Unrecognized motion model: "+ self.MOTION_MODEL_TYPE
      assert(False)
    
    # Subscribe to the '/initialpose' topic. Publised by RVIZ. See clicked_pose_cb function in this file for more info
    self.pose_sub  = rospy.Subscriber("/initialpose", PoseWithCovarianceStamped, self.clicked_pose_cb, queue_size=1)
    #self.click_sub = rospy.Subscriber("/clicked_point", PointStamped, self.clicked_pose_cb, queue_size=1)
    print('Initialization complete')
Exemple #4
0
            return "PASS"


if __name__ == '__main__':
    num_particles = 100
    counts = []
    counts1 = []
    counts2 = []

    #99 tests. Hint: set me to 100 to have insight on the question about resampling
    for i in range(0, 99):
        start_particles = np.zeros((num_particles, 3))  # Numpy matrix of dimension N_PARTICLES x 3
        state_lock = Lock()  # A lock used to prevent concurrency issues. You do not need to worry about this
        #Instatiate Your Motion Model
        motion_model = KinematicMotionModel("/fake_topic1", "/fake_topic2",
                                            0.0, 4350,
                                            0.5, -1.2135,
                                            0.33, start_particles, state_lock)

        #Apply 3 different controls
        if i % 3 == 0:
            counts = test_mm_1(motion_model, counts)
        if i % 3 == 1:
            counts1 = test_mm_2(motion_model, counts1)
        if i % 3 == 2:
            counts2 = test_mm_3(motion_model, counts2)

    print "Average Number of Particles within " + str(radius) + "cm of the Ground Truth:"
    print "Test 1:", np.mean(counts), pass_fail(1, np.mean(counts))
    print "Test 2:", np.mean(counts1), pass_fail(2, np.mean(counts1))
    print "Test 3:", np.mean(counts2), pass_fail(3, np.mean(counts2))
Exemple #5
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    def __init__(self):
        self.MAX_PARTICLES = int(rospy.get_param("~max_particles")) # The maximum number of particles
        self.MAX_VIZ_PARTICLES = int(rospy.get_param("~max_viz_particles")) # The maximum number of particles to visualize

        self.particle_indices = np.arange(self.MAX_PARTICLES)
        self.particles = np.zeros((self.MAX_PARTICLES,3)) # Numpy matrix of dimension MAX_PARTICLES x 3
        self.weights = np.ones(self.MAX_PARTICLES, dtype=np.float64) / float(self.MAX_PARTICLES) # Numpy matrix containig weight for each particle

        self.state_lock = Lock() # A lock used to prevent concurrency issues. You do not need to worry about this

        # Use the 'static_map' service (launched by MapServer.launch) to get the map
        # Will be used to initialize particles and SensorModel
        # Store map in variable called 'map_msg'
        # YOUR CODE HERE
        rospy.wait_for_service('/static_map')
        get_map = rospy.ServiceProxy('/static_map', GetMap)
        map_msg = get_map().map

        # Use dir to show msg fields
        # print(dir(map_msg))
        # print(dir(map_msg))

        # Globally initialize the particles
        self.map_free_space = []
        self.initialize_global(map_msg)
        print("Z!")


        # Publish particle filter state
        self.pose_pub      = rospy.Publisher("/pf/viz/inferred_pose", PoseStamped, queue_size = 1) # Publishes the expected pose
        self.particle_pub  = rospy.Publisher("/pf/viz/particles", PoseArray, queue_size = 1) # Publishes a subsample of the particles
        self.pub_tf = tf.TransformBroadcaster() # Used to create a tf between the map and the laser for visualization
        self.pub_laser     = rospy.Publisher("/pf/viz/scan", LaserScan, queue_size = 1) # Publishes the most recent laser scan
        print("Y!")

        self.RESAMPLE_TYPE = rospy.get_param("~resample_type", "naiive") # Whether to use naiive or low variance sampling
        self.resampler = ReSampler(self.particles, self.weights, self.state_lock, self.map_free_space)  # An object used for resampling
        print("X!")

        self.sensor_model = SensorModel(map_msg, self.particles, self.weights, self.state_lock) # An object used for applying sensor model
        self.laser_sub = rospy.Subscriber(rospy.get_param("~scan_topic", "/scan"), LaserScan, self.sensor_model.lidar_cb, queue_size=1)
        print("XZ!")

        self.MOTION_MODEL_TYPE = rospy.get_param("~motion_model", "kinematic") # Whether to use the odometry or kinematics based motion model
        print("!~!@#@! MOTION MODEL TYPE", self.MOTION_MODEL_TYPE)
        if self.MOTION_MODEL_TYPE == "kinematic":
            self.motion_model = KinematicMotionModel(self.particles, self.state_lock) # An object used for applying kinematic motion model
            self.motion_sub = rospy.Subscriber(rospy.get_param("~motion_topic", "/vesc/sensors/core"), VescStateStamped, self.motion_model.motion_cb, queue_size=1)
        elif self.MOTION_MODEL_TYPE == "odometry":
            self.motion_model = OdometryMotionModel(self.particles, self.state_lock)# An object used for applying odometry motion model
            self.motion_sub = rospy.Subscriber(rospy.get_param("~motion_topic", "/vesc/odom"), Odometry, self.motion_model.motion_cb, queue_size=1)
        elif self.MOTION_MODEL_TYPE == "learned":
            from TorchInclude import torch
            learned_motion_model = InternalLearnedMotionModel(self.particles, torch.load("../../lab3/src/tanh50k.pt"))
            self.motion_model = KinematicLikeMotionModel(self.particles, self.state_lock, learned_motion_model)
            self.motion_sub = rospy.Subscriber(rospy.get_param("~motion_topic", "/vesc/sensors/core"), VescStateStamped, self.motion_model.motion_cb, queue_size=1)
        elif self.MOTION_MODEL_TYPE == "learned_kinematic":
            from TorchInclude import torch
            kinematic_motion_model = InternalKinematicMotionModel(particles)
            learned_kinematic_motion_model = InternalLearnedKinematicMotionModel(self.particles, kinematic_motion_model, torch.load("../../lab1/src/KinematicDropout0.13Itr5k.pt"))
            self.motion_model = KinematicLikeMotionModel(self.particles, self.state_lock, learned_kinematic_motion_model)
            self.motion_sub = rospy.Subscriber(rospy.get_param("~motion_topic", "/vesc/sensors/core"), VescStateStamped, self.motion_model.motion_cb, queue_size=1)
        else:
            print "Unrecognized motion model: "+ self.MOTION_MODEL_TYPE
            assert(False)

        print("A!")
        # Use to initialize through rviz. Check clicked_pose_cb for more info
        self.pose_sub  = rospy.Subscriber("/initialpose", PoseWithCovarianceStamped, self.clicked_pose_cb, queue_size=1)
Exemple #6
0
    def __init__(self):
        self.MAX_PARTICLES = int(rospy.get_param(
            "~max_particles"))  # The maximum number of particles
        self.MAX_VIZ_PARTICLES = int(
            rospy.get_param("~max_viz_particles"
                            ))  # The maximum number of particles to visualize
        self.noise = bool(rospy.get_param("~noise"))

        self.particle_indices = np.arange(self.MAX_PARTICLES)
        self.particles = np.zeros(
            (self.MAX_PARTICLES,
             3))  # Numpy matrix of dimension MAX_PARTICLES x 3
        self.weights = np.ones(self.MAX_PARTICLES) / float(
            self.MAX_PARTICLES
        )  # Numpy matrix containig weight for each particle
        self.viz_seq = 0
        self.INIT_NOISE_POS_SIGMA = 0.2
        self.INIT_NOISE_THETA_SIGMA = np.pi / 12

        self.state_lock = Lock(
        )  # A lock used to prevent concurrency issues. You do not need to worry about this

        # Use the 'static_map' service (launched by MapServer.launch) to get the map
        # Will be used to initialize particles and SensorModel
        # Store map in variable called 'map_msg'
        # YOUR CODE HERE
        rospy.wait_for_service('static_map')
        static_map = rospy.ServiceProxy('/static_map', GetMap)
        map_msg = static_map().map

        # Globally initialize the particles
        self.initialize_global(map_msg)

        # Publish particle filter state
        self.pose_pub = rospy.Publisher(
            "/pf/viz/inferred_pose", PoseStamped,
            queue_size=1)  # Publishes the expected pose
        self.particle_pub = rospy.Publisher(
            "/pf/viz/particles", PoseArray,
            queue_size=1)  # Publishes a subsample of the particles
        self.pub_tf = tf.TransformBroadcaster(
        )  # Used to create a tf between the map and the laser for visualization
        self.pub_laser = rospy.Publisher(
            "/pf/viz/scan", LaserScan,
            queue_size=1)  # Publishes the most recent laser scan

        self.RESAMPLE_TYPE = rospy.get_param(
            "~resample_type",
            "naiive")  # Whether to use naiive or low variance sampling
        self.resampler = ReSampler(
            self.particles, self.weights,
            self.state_lock)  # An object used for resampling

        self.sensor_model = SensorModel(
            map_msg, self.particles, self.weights,
            self.state_lock)  # An object used for applying sensor model
        self.laser_sub = rospy.Subscriber(rospy.get_param(
            "~scan_topic", "/scan"),
                                          LaserScan,
                                          self.sensor_model.lidar_cb,
                                          queue_size=1)

        self.MOTION_MODEL_TYPE = rospy.get_param(
            "~motion_model", "kinematic"
        )  # Whether to use the odometry or kinematics based motion model
        if self.MOTION_MODEL_TYPE == "kinematic":
            self.motion_model = KinematicMotionModel(
                self.particles, self.state_lock, noise=self.noise
            )  # An object used for applying kinematic motion model
            self.motion_sub = rospy.Subscriber(rospy.get_param(
                "~motion_topic", "/vesc/sensors/core"),
                                               VescStateStamped,
                                               self.motion_model.motion_cb,
                                               queue_size=1)
        elif self.MOTION_MODEL_TYPE == "odometry":
            self.motion_model = OdometryMotionModel(
                self.particles, self.state_lock, noise=self.noise
            )  # An object used for applying odometry motion model
            self.motion_sub = rospy.Subscriber(rospy.get_param(
                "~motion_topic", "/vesc/odom"),
                                               Odometry,
                                               self.motion_model.motion_cb,
                                               queue_size=1)
        else:
            print "Unrecognized motion model: " + self.MOTION_MODEL_TYPE
            assert (False)

        # Use to initialize through rviz. Check clicked_pose_cb for more info
        self.pose_sub = rospy.Subscriber("/initialpose",
                                         PoseWithCovarianceStamped,
                                         self.clicked_pose_cb,
                                         queue_size=1)
Exemple #7
0
                    print("odom")
                """
                if topic == '/initialpose':
                    x = msg.pose.pose.position.x
                    y = msg.pose.pose.position.y
                    theta = Utils.quaternion_to_angle(
                        msg.pose.pose.orientation)
                    particles = np.repeat(np.array([[x, y, theta]],
                                                   dtype=np.float64),
                                          numParticles,
                                          axis=0)
                    weights = np.ones(numParticles) / numParticles
                    #print("Particles: ", particles)
                    sensorModel = SensorModel(map_msg, particles, weights,
                                              state_lock)
                    kinematicModel = KinematicMotionModel(
                        particles, state_lock)
                    resampler = ReSampler(
                        particles, weights, state_lock,
                        None)  # An object used for resampling
                    st = t
                    #print("initalpose")
                elif topic == '/pf/ta/viz/inferred_pose':
                    x = msg.pose.position.x
                    y = msg.pose.position.y
                    expected_pose = [x, y]

                elif topic == "/vesc/sensors/core" and kinematicModel is not None:
                    kinematicModel.motion_cb(msg)
                elif topic == "/vesc/sensors/servo_position_command" and kinematicModel is not None:
                    kinematicModel.servo_cb(msg)
                elif topic == "/scan" and sensorModel is not None:
    def __init__(self, n_particles, n_viz_particles, odometry_topic,
                 motor_state_topic, servo_state_topic, scan_topic,
                 laser_ray_step, exclude_max_range_rays, max_range_meters,
                 speed_to_erpm_offset, speed_to_erpm_gain,
                 steering_angle_to_servo_offset, steering_angle_to_servo_gain,
                 car_length):
        self.N_PARTICLES = n_particles  # The number of particles
        # In this implementation, the total number of
        # particles is constant
        self.N_VIZ_PARTICLES = n_viz_particles  # The number of particles to visualize

        self.particle_indices = np.arange(
            self.N_PARTICLES)  # Cached list of particle indices
        self.particles = np.zeros(
            (self.N_PARTICLES, 3))  # Numpy matrix of dimension N_PARTICLES x 3
        self.weights = np.ones(self.N_PARTICLES) / float(
            self.N_PARTICLES
        )  # Numpy matrix containing weight for each particle

        self.state_lock = Lock(
        )  # A lock used to prevent concurrency issues. You do not need to worry about this

        self.tfl = tf.TransformListener(
        )  # Transforms points between coordinate frames

        # Get the map
        map_msg = rospy.wait_for_message(MAP_TOPIC, OccupancyGrid)
        self.map_info = map_msg.info  # Save info about map for later use

        # Create numpy array representing map for later use
        array_255 = np.array(map_msg.data).reshape(
            (map_msg.info.height, map_msg.info.width))
        self.permissible_region = np.zeros_like(array_255, dtype=bool)
        self.permissible_region[
            array_255 ==
            0] = 1  # Numpy array of dimension (map_msg.info.height, map_msg.info.width),
        # With values 0: not permissible, 1: permissible

        # Globally initialize the particles

        # Publish particle filter state
        self.pub_tf = tf.TransformBroadcaster(
        )  # Used to create a tf between the map and the laser for visualization
        self.pose_pub = rospy.Publisher(
            PUBLISH_PREFIX + "/inferred_pose", PoseStamped,
            queue_size=1)  # Publishes the expected pose
        self.particle_pub = rospy.Publisher(
            PUBLISH_PREFIX + "/particles", PoseArray,
            queue_size=1)  # Publishes a subsample of the particles
        self.pub_laser = rospy.Publisher(
            PUBLISH_PREFIX + "/scan", LaserScan,
            queue_size=1)  # Publishes the most recent laser scan
        self.pub_odom = rospy.Publisher(
            PUBLISH_PREFIX + "/odom", Odometry,
            queue_size=1)  # Publishes the path of the car

        rospy.sleep(1.0)
        self.initialize_global()

        self.resampler = ReSampler(
            self.particles, self.weights,
            self.state_lock)  # An object used for resampling

        # An object used for applying sensor model
        self.sensor_model = SensorModel(scan_topic, laser_ray_step,
                                        exclude_max_range_rays,
                                        max_range_meters, map_msg,
                                        self.particles, self.weights,
                                        car_length, self.state_lock)

        # An object used for applying kinematic motion model
        self.motion_model = KinematicMotionModel(
            motor_state_topic, servo_state_topic, speed_to_erpm_offset,
            speed_to_erpm_gain, steering_angle_to_servo_offset,
            steering_angle_to_servo_gain, car_length, self.particles,
            self.state_lock)

        self.permissible_x, self.permissible_y = np.where(
            self.permissible_region == 1)

        # Parameters/flags/vars for global localization
        self.global_localize = True
        self.global_suspend = False
        self.ents = None
        self.ents_sum = 0.0
        self.noisy_cnt = 0
        self.NUM_REGIONS = 5  # number of regions to partition. Simulation: 25, Real: 5.
        self.REGIONAL_ROUNDS = 3  # number of updates for regional localization. Simulation 5, Real: 3.
        self.regions = []
        self.click_mode = True
        self.debug_mode = False
        if self.debug_mode:
            self.global_localize = True  # True when doing global localization

        # precompute regions. Each region is represented by arrays of x, y indices on the map
        region_size = len(self.permissible_x) / self.NUM_REGIONS
        # for i in xrange(self.NUM_REGIONS):  # row-major
        #   self.regions.append((self.permissible_x[i*region_size:(i+1)*region_size],
        #                        self.permissible_y[i*region_size:(i+1)*region_size]))
        idx = np.argsort(self.permissible_y)  # column-major
        _px, _py = self.permissible_x[idx], self.permissible_y[idx]
        for i in xrange(self.NUM_REGIONS):
            self.regions.append((_px[i * region_size:(i + 1) * region_size],
                                 _py[i * region_size:(i + 1) * region_size]))

        # Subscribe to the '/initialpose' topic. Publised by RVIZ. See clicked_pose_cb function in this file for more info
        # three different reactions to click on rviz
        #self.click_sub  = rospy.Subscriber("/initialpose", PoseWithCovarianceStamped, self.clicked_pose_cb, queue_size=1)
        self.init_sub = rospy.Subscriber("/initialpose",
                                         PoseWithCovarianceStamped,
                                         self.reinit_cb,
                                         queue_size=1)

        rospy.wait_for_message(scan_topic, LaserScan)
        print('Initialization complete')
Exemple #9
0
class NoisePropagation():
    def __init__(self, particles, state_lock):
        print("Initalized")
        self.odom = OdometryMotionModel(particles, state_lock)
        self.kine = KinematicMotionModel(particles, state_lock)
        self.odomMessage = []
        self.kineMessage = []
        #self.odomParticles = [particles]
        self.odomParticles = np.array([particles])
        self.kineParticles = np.array([particles])

    def addOdomMessage(self, msg):
        #self.odomMessage.append(msg)
        self.odom.motion_cb(msg)
        #self.odomParticles.append(np.copy(self.odom.inner.particles))
        self.odomParticles = np.concatenate(
            (self.odomParticles, [np.copy(self.odom.inner.particles)]), axis=0)

    def addKineVelMessage(self, msg):
        #self.kindVelMessage.append(msg)
        self.kine.motion_cb(msg)
        #self.kineParticles.append(self.kine.inner.particles)
        self.kineParticles = np.concatenate(
            (self.kineParticles, [np.copy(self.kine.inner.particles)]), axis=0)

    def addKineServMessage(self, msg):
        #self.kindServMessage.append(msg)
        self.kine.servo_cb(msg)

    def plotOdomParticles(self):
        x_total = []
        y_total = []
        c = iter(cm.rainbow(np.linspace(0, 1, len(self.odomParticles) + 1)))
        #assert len(self.odomParticles) == 20
        for i in range(len(self.odomParticles)):
            current_particle = self.odomParticles[i]
            #print(current_particle.shape)
            x = current_particle[:, 0]
            #x = column(current_particle, 0)
            if x_total == []:
                x_total = x
            else:
                x_total += x
            print("X: ", x)
            assert len(x) == 500
            y = current_particle[:, 1]
            #y = column(current_particle, 1)
            if y_total == []:
                y_total = y
            else:
                y_total += y
            #print("X", x)
            #plt.scatter(x, y)
            plt.scatter(x, y, color=next(c))
        plt.show()

    def plotKineParticles(self):
        c = iter(cm.rainbow(np.linspace(0, 1, len(self.kineParticles) + 1)))
        #assert len(self.odomParticles) == 20
        for i in range(len(self.kineParticles)):
            current_particle = self.kineParticles[i]
            #print(current_particle.shape)
            x = current_particle[:, 0]
            #x = column(current_particle, 0)

            assert len(x) == 500
            y = current_particle[:, 1]
            #y = column(current_particle, 1)

            #print("X", x)
            #plt.scatter(x, y)
            plt.scatter(x, y, color=next(c))
        plt.show()