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@ -23,79 +23,68 @@ class SingleJointActuator(hm.HelloNode): |
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def __init__(self): |
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hm.HelloNode.__init__(self) |
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def issue_command(self): |
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""" |
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Function that makes an action call and sends multiple joint trajectory goals |
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to a single joint |
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:param self: The self reference. |
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""" |
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# Set trajectory_goal as a FollowJointTrajectoryGoal and define |
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# the joint name. Here is a list of joints and their position |
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# limits: |
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############################# Joint limits ############################# |
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# joint_lift: lower_limit = 0.00, upper_limit = 1.10 # in meters |
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# wrist_extension: lower_limit = 0.00, upper_limit = 0.51 # in meters |
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# joint_wrist_yaw: lower_limit = -1.75, upper_limit = 4.00 # in radians |
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# joint_gripper_finger_left: lower_limit = -0.60, upper_limit = 0.60 # in radians |
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# joint_gripper_finger_right: lower_limit = -0.60, upper_limit = 0.60 # in radians |
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# joint_head_pan: lower_limit = -3.90, upper_limit = 1.50 # in radians |
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# joint_head_tilt: lower_limit = -1.53, upper_limit = 0.79 # in radians |
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######################################################################## |
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trajectory_goal = FollowJointTrajectoryGoal() |
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trajectory_goal.trajectory.joint_names = ['wrist_extension'] |
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# Provide desired positions for joint name. |
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# Set positions for the following 5 trajectory points. |
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point0 = JointTrajectoryPoint() |
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point0.positions = [0.0] |
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point1 = JointTrajectoryPoint() |
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point1.positions = [0.1] |
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point2 = JointTrajectoryPoint() |
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point2.positions = [0.2] |
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point3 = JointTrajectoryPoint() |
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point3.positions = [0.3] |
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point4 = JointTrajectoryPoint() |
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point4.positions = [0.2] |
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point5 = JointTrajectoryPoint() |
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point5.positions = [0.1] |
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# Then trajectory_goal.trajectory.points is set as a list of the joint |
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# trajectory points |
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trajectory_goal.trajectory.points = [point0, point1, point2, point3, point4, point5] |
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# Specify the coordinate frame that we want (base_link) and set the time to be now. |
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trajectory_goal.trajectory.header.stamp = rospy.Time(0.0) |
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trajectory_goal.trajectory.header.frame_id = 'base_link' |
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# Make the action call and send the goal. The last line of code waits |
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# for the result before it exits the python script. |
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self.trajectory_client.send_goal(trajectory_goal) |
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rospy.loginfo('Sent stow goal = {0}'.format(trajectory_goal)) |
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self.trajectory_client.wait_for_result() |
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def main(self): |
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""" |
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Function that initiates the issue_command function. |
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:param self: The self reference. |
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""" |
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# The arguments of the main function of the hm.HelloNode class are the |
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# node_name, node topic namespace, and boolean (default value is true). |
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hm.HelloNode.main(self, 'issue_command', 'issue_command', wait_for_first_pointcloud=False) |
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rospy.loginfo('issuing command...') |
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self.issue_command() |
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time.sleep(2) |
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def issue_command(self): |
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""" |
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Function that makes an action call and sends joint trajectory goals |
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to a single joint |
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:param self: The self reference. |
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""" |
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# Here is a list of joints and their recommended position limits: |
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############################# Joint limits ############################# |
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# joint_lift: lower_limit = 0.00, upper_limit = 1.10 # in meters |
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# wrist_extension: lower_limit = 0.00, upper_limit = 0.50 # in meters |
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# joint_wrist_yaw: lower_limit = -1.75, upper_limit = 4.00 # in radians |
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# joint_gripper_finger_left: lower_limit = -0.35, upper_limit = 0.165 # in radians |
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# joint_gripper_finger_right: lower_limit = -0.35, upper_limit = 0.165 # in radians |
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# joint_head_pan: lower_limit = -2.80, upper_limit = 2.90 # in radians |
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# joint_head_tilt: lower_limit = -1.60, upper_limit = 0.40 # in radians |
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######################################################################## |
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# Set trajectory_goal as a FollowJointTrajectoryGoal and define |
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# the joint name. |
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trajectory_goal = FollowJointTrajectoryGoal() |
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trajectory_goal.trajectory.joint_names = ['joint_lift'] |
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# Provide desired positions for joint name. |
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# Set positions for the following 5 trajectory points. |
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point0 = JointTrajectoryPoint() |
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point0.positions = [0.65] |
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# point1 = JointTrajectoryPoint() |
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# point1.positions = [0.5] |
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# Then trajectory_goal.trajectory.points is set as a list of the joint |
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# trajectory points |
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trajectory_goal.trajectory.points = [point0]#, point1] |
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# Specify the coordinate frame that we want (base_link) and set the time to be now. |
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trajectory_goal.trajectory.header.stamp = rospy.Time(0.0) |
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trajectory_goal.trajectory.header.frame_id = 'base_link' |
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# Make the action call and send the goal. The last line of code waits |
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# for the result before it exits the python script. |
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self.trajectory_client.send_goal(trajectory_goal) |
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rospy.loginfo('Sent stow goal = {0}'.format(trajectory_goal)) |
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self.trajectory_client.wait_for_result() |
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def main(self): |
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""" |
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Function that initiates the issue_command function. |
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:param self: The self reference. |
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""" |
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# The arguments of the main function of the hm.HelloNode class are the |
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# node_name, node topic namespace, and boolean (default value is true). |
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hm.HelloNode.main(self, 'issue_command', 'issue_command', wait_for_first_pointcloud=False) |
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rospy.loginfo('issuing command...') |
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self.issue_command() |
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time.sleep(2) |
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if __name__ == '__main__': |
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try: |
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# Initialize the MultiPointCommand() class and set it to node and run the |
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# main() function. |
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node = MultiPointCommand() |
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node.main() |
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except KeyboardInterrupt: |
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rospy.loginfo('interrupt received, so shutting down') |
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try: |
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# Initialize the MultiPointCommand() class and set it to node and run the |
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# main() function. |
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node = SingleJointActuator() |
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node.main() |
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except KeyboardInterrupt: |
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rospy.loginfo('interrupt received, so shutting down') |