class IExpressionActionServer(object):
__metaclass__ = abc.ABCMeta
def __init__(self):
self.action_server = MultiGoalActionServer('expression',
ExpressionAction,
auto_start=False)
self.action_server.register_goal_callback(self.__goal_callback)
self.action_server.register_preempt_callback(self.__preempt_callback)
def start(self):
self.action_server.start()
def __goal_callback(self, goal_handle):
goal = goal_handle.get_goal()
self.start_expression(goal)
rospy.loginfo("Expression received id: %s, name: %s",
goal_handle.get_goal_id().id, goal.type)
def __preempt_callback(self, goal_handle):
goal = goal_handle.get_goal()
self.stop_expression(goal)
rospy.loginfo("Expression preempted id: %s, name: %s",
goal_handle.get_goal_id().id, goal.type)
@abc.abstractmethod
def start_expression(self, goal):
""" Start your expression """
return
@abc.abstractmethod
def stop_expression(self, goal):
""" Stop the expression corresponding to this goal """
return
class IExpressionActionServer(object):
__metaclass__ = abc.ABCMeta
def __init__(self):
self.action_server = MultiGoalActionServer('expression', ExpressionAction, auto_start=False)
self.action_server.register_goal_callback(self.__goal_callback)
self.action_server.register_preempt_callback(self.__preempt_callback)
def start(self):
self.action_server.start()
def __goal_callback(self, goal_handle):
goal = goal_handle.get_goal()
self.start_expression(goal)
rospy.loginfo("Expression received id: %s, name: %s", goal_handle.get_goal_id().id, goal.type)
def __preempt_callback(self, goal_handle):
goal = goal_handle.get_goal()
self.stop_expression(goal)
rospy.loginfo("Expression preempted id: %s, name: %s", goal_handle.get_goal_id().id, goal.type)
@abc.abstractmethod
def start_expression(self, goal):
""" Start your expression """
return
@abc.abstractmethod
def stop_expression(self, goal):
""" Stop the expression corresponding to this goal """
return
class MiniHeadExpressionServer(IExpressionActionServer):
def __init__(self):
self.action_server = MultiGoalActionServer('expression', ExpressionAction, auto_start=False)
self.action_server.register_goal_callback(self.goal_callback)
self.motor_pub = rospy.Publisher('pololu/command', MotorCommand, queue_size=10)
self.motor_range_srv = rospy.ServiceProxy('pololu/motor_range', MotorRange)
self.rate = rospy.Rate(10)
def start(self):
self.action_server.start()
def goal_callback(self, goal_handle):
#self.action_server.set_accepted(goal_handle)
new_goal = goal_handle.get_goal()
rospy.loginfo('Accepted new goal: {0}'.format(new_goal))
found = False
for name, member in Expression.__members__.items():
if name == new_goal.expression:
found = True
if not found:
rospy.logerr('{0} is not a valid expression. Valid expressions are: {1}'.format(new_goal.expression, Expression))
self.action_server.set_aborted(goal_handle)
return
expression_thread = threading.Thread(target=self.start_expression, args=[goal_handle])
expression_thread.run()
def start_expression(self, goal_handle):
goal = goal_handle.get_goal()
expression = Expression[goal.expression]
speed = goal.speed
intensity = goal.intensity
duration = goal.duration
# Checking for default values (-1 means nothing was specified, hence we should use the default values)
if speed == -1:
speed = expression.default_speed
if intensity == -1:
intensity = expression.default_intensity
if duration == -1 and expression.default_duration is not None:
duration = expression.default_duration
if expression in [Expression.smile, Expression.frown_mouth]:
joint_name = 'smile_joint'
elif expression in [Expression.open_mouth]:
joint_name = 'jaw_joint'
elif expression in [Expression.frown]:
joint_name = 'brow_joint'
negative = True
if expression in [Expression.smile, Expression.open_mouth]:
negative = False
response = self.motor_range_srv(joint_name)
msg = MotorCommand()
msg.joint_name = joint_name
min_range = min([response.min, response.max])
max_range = max([response.min, response.max])
if negative:
msg.position = interpolate(intensity, 0.0, 1.0, 0.0, min_range)
else:
msg.position = interpolate(intensity, 0.0, 1.0, 0.0, max_range)
msg.speed = interpolate(speed, 0.0, 1.0, 0.0, 0.5)
msg.acceleration = interpolate(speed, 0.0, 1.0, 0.0, 0.4)
start = time.time()
while not rospy.is_shutdown() and not self.action_server.is_preempt_requested(goal_handle) and (time.time() - start) < duration:
if duration >= 0.0 and (time.time() - start) < duration:
break
self.motor_pub.publish(msg)
self.rate.sleep()
if not self.action_server.is_preempt_requested(goal_handle):
self.action_server.set_succeeded(goal_handle)
def stop_expression(self, goal_handle):
raise NotImplementedError('Please implement this method')
class IGestureActionServer():
__metaclass__ = abc.ABCMeta
def __init__(self, gesture_enum):
self.node_name = "gesture"
self.gesture_enum = gesture_enum
self.gesture_handle_lookup = {}
self.action_server = MultiGoalActionServer(self.node_name,
GestureAction,
auto_start=False)
self.action_server.register_goal_callback(self.__goal_callback)
self.action_server.register_preempt_callback(self.__preempt_callback)
def start(self):
self.action_server.start()
rospy.loginfo('GestureActionServer started')
def is_valid_gesture(self, gesture_name):
found = False
for name, member in self.gesture_enum.__members__.items():
if name == gesture_name:
return True
if not found:
rospy.logerr(
'{0} is not a valid gesture. Valid gestures are: {1}'.format(
gesture_name, self.gesture_enum.__members__.items()))
return False
def __goal_callback(self, goal_handle):
new_goal = goal_handle.get_goal()
self.start_gesture(goal_handle)
rospy.loginfo("Gesture received id: %s, name: %s",
goal_handle.get_goal_id().id, new_goal.gesture)
def __preempt_callback(self, goal_handle):
self.cancel_gesture(goal_handle)
gesture_handle = self.get_gesture_handle(goal_handle)
self.remove_gesture_handle(gesture_handle)
rospy.loginfo("Gesture preempted id: %s, name: %s",
goal_handle.get_goal_id().id,
goal_handle.get_goal().gesture)
@abc.abstractmethod
def start_gesture(self, goal_handle):
""" Start your gesture. """
return
@abc.abstractmethod
def cancel_gesture(self, goal_handle):
""" Cancel gesture if it is currently running. """
return
def send_feedback(self, goal_handle, distance_to_target):
""" Call this method to send feedback about the distance to the target """
feedback = GestureActionFeedback()
feedback.distance_to_target = distance_to_target
self.action_server.publish_feedback(goal_handle, self.feedback)
rospy.loginfo(
"Gesture feedback id: %s, name: %s, distance_to_target: $s",
goal_handle.get_goal_id().id,
goal_handle.get_goal().type, distance_to_target)
def set_succeeded(self, goal_handle):
""" Call this method when the gesture has finished """
self.action_server.set_succeeded(goal_handle)
gesture_handle = self.get_gesture_handle(goal_handle)
self.remove_gesture_handle(gesture_handle)
rospy.loginfo("Gesture finished id: %s, name: %s",
goal_handle.get_goal_id().id,
goal_handle.get_goal().gesture)
def set_aborted(self, goal_handle):
self.action_server.set_aborted()
gesture_handle = self.get_gesture_handle(goal_handle)
self.remove_gesture_handle(gesture_handle)
def add_gesture_handle(self, gesture_handle):
self.gesture_handle_lookup[gesture_handle.goal_id()] = gesture_handle
def remove_gesture_handle(self, gesture_handle):
self.gesture_handle_lookup.pop(gesture_handle.goal_id())
def get_gesture_handle(self, goal_handle):
return self.gesture_handle_lookup[goal_handle.get_goal_id().id]
class MiniHeadExpressionServer(IExpressionActionServer):
def __init__(self):
self.action_server = MultiGoalActionServer('expression',
ExpressionAction,
auto_start=False)
self.action_server.register_goal_callback(self.goal_callback)
self.motor_pub = rospy.Publisher('pololu/command',
MotorCommand,
queue_size=10)
self.motor_range_srv = rospy.ServiceProxy('pololu/motor_range',
MotorRange)
self.rate = rospy.Rate(10)
def start(self):
self.action_server.start()
def goal_callback(self, goal_handle):
#self.action_server.set_accepted(goal_handle)
new_goal = goal_handle.get_goal()
rospy.loginfo('Accepted new goal: {0}'.format(new_goal))
found = False
for name, member in Expression.__members__.items():
if name == new_goal.expression:
found = True
if not found:
rospy.logerr(
'{0} is not a valid expression. Valid expressions are: {1}'.
format(new_goal.expression, Expression))
self.action_server.set_aborted(goal_handle)
return
expression_thread = threading.Thread(target=self.start_expression,
args=[goal_handle])
expression_thread.run()
def start_expression(self, goal_handle):
goal = goal_handle.get_goal()
expression = Expression[goal.expression]
speed = goal.speed
intensity = goal.intensity
duration = goal.duration
# Checking for default values (-1 means nothing was specified, hence we should use the default values)
if speed == -1:
speed = expression.default_speed
if intensity == -1:
intensity = expression.default_intensity
if duration == -1 and expression.default_duration is not None:
duration = expression.default_duration
if expression in [Expression.smile, Expression.frown_mouth]:
joint_name = 'smile_joint'
elif expression in [Expression.open_mouth]:
joint_name = 'jaw_joint'
elif expression in [Expression.frown]:
joint_name = 'brow_joint'
negative = True
if expression in [Expression.smile, Expression.open_mouth]:
negative = False
response = self.motor_range_srv(joint_name)
msg = MotorCommand()
msg.joint_name = joint_name
min_range = min([response.min, response.max])
max_range = max([response.min, response.max])
if negative:
msg.position = interpolate(intensity, 0.0, 1.0, 0.0, min_range)
else:
msg.position = interpolate(intensity, 0.0, 1.0, 0.0, max_range)
msg.speed = interpolate(speed, 0.0, 1.0, 0.0, 0.5)
msg.acceleration = interpolate(speed, 0.0, 1.0, 0.0, 0.4)
start = time.time()
while not rospy.is_shutdown(
) and not self.action_server.is_preempt_requested(goal_handle) and (
time.time() - start) < duration:
if duration >= 0.0 and (time.time() - start) < duration:
break
self.motor_pub.publish(msg)
self.rate.sleep()
if not self.action_server.is_preempt_requested(goal_handle):
self.action_server.set_succeeded(goal_handle)
def stop_expression(self, goal_handle):
raise NotImplementedError('Please implement this method')
class IGestureActionServer():
__metaclass__ = abc.ABCMeta
def __init__(self, gesture_enum):
self.node_name = "gesture"
self.gesture_enum = gesture_enum
self.gesture_handle_lookup = {}
self.action_server = MultiGoalActionServer(self.node_name, GestureAction, auto_start=False)
self.action_server.register_goal_callback(self.__goal_callback)
self.action_server.register_preempt_callback(self.__preempt_callback)
def start(self):
self.action_server.start()
rospy.loginfo('GestureActionServer started')
def is_valid_gesture(self, gesture_name):
found = False
for name, member in self.gesture_enum.__members__.items():
if name == gesture_name:
return True
if not found:
rospy.logerr('{0} is not a valid gesture. Valid gestures are: {1}'.format(gesture_name, self.gesture_enum.__members__.items()))
return False
def __goal_callback(self, goal_handle):
new_goal = goal_handle.get_goal()
self.start_gesture(goal_handle)
rospy.loginfo("Gesture received id: %s, name: %s", goal_handle.get_goal_id().id, new_goal.gesture)
def __preempt_callback(self, goal_handle):
self.cancel_gesture(goal_handle)
gesture_handle = self.get_gesture_handle(goal_handle)
self.remove_gesture_handle(gesture_handle)
rospy.loginfo("Gesture preempted id: %s, name: %s", goal_handle.get_goal_id().id, goal_handle.get_goal().gesture)
@abc.abstractmethod
def start_gesture(self, goal_handle):
""" Start your gesture. """
return
@abc.abstractmethod
def cancel_gesture(self, goal_handle):
""" Cancel gesture if it is currently running. """
return
def send_feedback(self, goal_handle, distance_to_target):
""" Call this method to send feedback about the distance to the target """
feedback = GestureActionFeedback()
feedback.distance_to_target = distance_to_target
self.action_server.publish_feedback(goal_handle, self.feedback)
rospy.loginfo("Gesture feedback id: %s, name: %s, distance_to_target: $s", goal_handle.get_goal_id().id, goal_handle.get_goal().type, distance_to_target)
def set_succeeded(self, goal_handle):
""" Call this method when the gesture has finished """
self.action_server.set_succeeded(goal_handle)
gesture_handle = self.get_gesture_handle(goal_handle)
self.remove_gesture_handle(gesture_handle)
rospy.loginfo("Gesture finished id: %s, name: %s", goal_handle.get_goal_id().id, goal_handle.get_goal().gesture)
def set_aborted(self, goal_handle):
self.action_server.set_aborted()
gesture_handle = self.get_gesture_handle(goal_handle)
self.remove_gesture_handle(gesture_handle)
def add_gesture_handle(self, gesture_handle):
self.gesture_handle_lookup[gesture_handle.goal_id()] = gesture_handle
def remove_gesture_handle(self, gesture_handle):
self.gesture_handle_lookup.pop(gesture_handle.goal_id())
def get_gesture_handle(self, goal_handle):
return self.gesture_handle_lookup[goal_handle.get_goal_id().id]