def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('start_pos')
# Use the planning scene object to add or remove objects
scene = PlanningSceneInterface()
# Create a scene publisher to push changes to the scene
self.scene_pub = rospy.Publisher('planning_scene',
PlanningScene,
queue_size=5)
# Create a publisher for displaying gripper poses
self.gripper_pose_pub = rospy.Publisher('gripper_pose',
PoseStamped,
queue_size=5)
# Create a dictionary to hold object colors
self.colors = dict()
# Initialize the move group for the right arm
right_arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the right gripper
right_gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Allow some leeway in position (meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.05)
right_arm.set_goal_orientation_tolerance(0.1)
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Set the right arm reference frame
right_arm.set_pose_reference_frame(REFERENCE_FRAME)
# Allow 10 seconds per planning attempt
right_arm.set_planning_time(10)
# Start the arm in the "resting" pose stored in the SRDF file
right_arm.set_named_target('right_start')
right_arm.go()
# Open the gripper to the neutral position
right_gripper.set_joint_value_target(GRIPPER_NEUTRAL)
right_gripper.go()
rospy.sleep(1)
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
def talker_by13():
#init
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_fk_demo')
#cartesian = rospy.get_param('~cartesian', True)
arm = MoveGroupCommander('manipulator')
arm.set_pose_reference_frame('base_link')
arm.allow_replanning(True)
arm.set_goal_position_tolerance(0.001)
arm.set_goal_orientation_tolerance(0.001)
# arm.set_max_acceleration_scaling_factor(0.5)
#arm.set_max_velocity_scaling_factor(0.5)
end_effector_link = arm.get_end_effector_link()
#arm.set_named_target('home')
arm.set_named_target('up')
arm.go()
rospy.sleep(2)
target_pose = PoseStamped()
target_pose.header.frame_id = 'base_link'
target_pose.header.stamp = rospy.Time.now()
target_pose.pose.position.x = 0.86
target_pose.pose.position.y = 0.25
target_pose.pose.position.z = 0.02832
target_pose.pose.orientation.x = 0
target_pose.pose.orientation.y = 0
target_pose.pose.orientation.z = 0
target_pose.pose.orientation.w = 1
#next: find workspace
arm.set_start_state_to_current_state()
arm.set_pose_target(target_pose, end_effector_link)
traj = arm.plan()
arm.execute(traj)
#arm.shift_pose_target(2,-0.05,end_effector_link)
#arm.go()
rospy.sleep(2)
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def __init__(self):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 初始化ROS节点
rospy.init_node('moveit_cartesian_demo', anonymous=True)
# 是否需要使用笛卡尔空间的运动规划
cartesian = rospy.get_param('~cartesian', True)
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander('arm')
# 当运动规划失败后，允许重新规划
arm.allow_replanning(False)
# 设置目标位置所使用的参考坐标系
reference_frame = 'base_link'
arm.set_pose_reference_frame(reference_frame)
# 设置位置(单位：米)和姿态（单位：弧度）的允许误差
arm.set_goal_position_tolerance(0.0001)
arm.set_goal_orientation_tolerance(0.0001)
arm.set_max_velocity_scaling_factor(0.5)
# 获取终端link的名称
eef_link = arm.get_end_effector_link()
scene = moveit_commander.PlanningSceneInterface()
print "[INFO] Current pose:", arm.get_current_pose(eef_link).pose
# 控制机械臂运动到之前设置的姿态
# arm.set_named_target('pick_6')
arm.set_named_target('home')
arm.go()
self.box_name = ''
self.scene = scene
self.group = arm
self.eef_link = eef_link
self.reference_frame = reference_frame
self.moveit_commander = moveit_commander
self.move_distance = 0.1
self.back_distance = 0.15
class Robot:
def __init__(self, config, debug=0):
print "[INFO] Initialise Robot"
self.DEBUG = debug
# configuration
self.config = config
# initialise move groups
self.arm = MoveGroupCommander(ARM_GROUP)
self.gripper = MoveGroupCommander(GRIPPER_GROUP)
# initialise pick and place manager
if self.DEBUG is 1:
# verbose mode
self.pick_and_place = PickPlaceInterface(ARM_GROUP, GRIPPER_GROUP,
False, True)
else:
# non verbose mode
self.pick_and_place = PickPlaceInterface(ARM_GROUP, GRIPPER_GROUP,
False, False)
# tolerance: position (in m), orientation (in rad)
self.arm.set_goal_position_tolerance(0.01)
self.arm.set_goal_orientation_tolerance(0.1)
self.place_manager = None
self.pick_manager = None
self.initialise_move_actions()
self.start_position()
"""Initialise the place and pick manager.
"""
def initialise_move_actions(self):
self.place_manager = PlaceManager(self.arm, self.pick_and_place,
self.config, self.DEBUG)
self.pick_manager = PickManager(self.arm, self.pick_and_place,
self.DEBUG)
"""Move robot arm to "start position".
"""
def start_position(self):
self.arm.set_named_target(START_POSITION)
self.arm.go()
rospy.sleep(2)
class TestMove():
def __init__(self):
roscpp_initialize(sys.argv)
rospy.init_node('ur3_move', anonymous=True)
self.scene = PlanningSceneInterface()
self.robot_cmd = RobotCommander()
self.robot_arm = MoveGroupCommander(GROUP_NAME_ARM)
#robot_gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
self.robot_arm.set_goal_orientation_tolerance(0.005)
self.robot_arm.set_planning_time(5)
self.robot_arm.set_num_planning_attempts(5)
rospy.sleep(2)
# Allow replanning to increase the odds of a solution
self.robot_arm.allow_replanning(True)
def move_code(self):
self.robot_arm.set_named_target("home") #go to goal state.
self.robot_arm.go(wait=True)
print("====== move plan go to home 1 ======")
rospy.sleep(1)
# print("====== move plan go to up ======")
self.robot_arm.set_named_target("table") #go to goal state.
self.robot_arm.go(wait=True)
print("====== move plan go to table 1 ======")
rospy.sleep(1)
range(0, 5)
rospy.spin()
roscpp_shutdown()
# robot_arm.set_named_target("up")
# robot_arm.go(wait=True)
robot_state = robot_arm.get_current_pose()
robot_angle = robot_arm.get_current_joint_values()
print(robot_state)
def __init__(self):
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('cobra_move_position', anonymous=True)
arm = MoveGroupCommander(ARM_GROUP)
arm.allow_replanning(True)
arm.set_planning_time(10)
arm.set_named_target(START_POSITION)
arm.go()
rospy.sleep(2)
print "======== create new goal position ========"
start_pose = PoseStamped()
start_pose.header.frame_id = arm.get_planning_frame()
# Test Position
start_pose.pose.position.x = 0.2 # 20 cm
start_pose.pose.position.y = -0.11 # -11 cm
start_pose.pose.position.z = 0.6 # 60 cm
q = quaternion_from_euler(0.0, 0.0, 0.0)
start_pose.pose.orientation = Quaternion(*q)
print start_pose
print "====== move to position ======="
# KDL
# arm.set_joint_value_target(start_pose, True)
# IK Fast
arm.set_position_target([start_pose.pose.position.x, start_pose.pose.position.y, start_pose.pose.position.z],
arm.get_end_effector_link())
arm.go()
rospy.sleep(2)
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def talker_by13():
#init
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_fk_demo')
cartesian = rospy.get_param('~cartesian', True)
arm = MoveGroupCommander('manipulator')
#arm.set_pose_reference_frame('base_link')
#arm.set_goal_position_tolerance(0.001)
# arm.set_goal_orientation_tolerance(0.001)
# arm.set_max_acceleration_scaling_factor(0.5)
#arm.set_max_velocity_scaling_factor(0.5)
end_effector_link = arm.get_end_effector_link()
arm.set_named_target('home')
arm.go()
rospy.sleep(1)
start_pose = arm.get_current_pose(end_effector_link).pose
waypoints = []
wpose = deepcopy(start_pose)
wpose.position.x -= 0.2
wpose.position.y -= 0.2
#wpose.position.z += 0.6
#wpose.position.x = 0.8
#wpose.position.y = 0.9
#wpose.position.z = 0.9
arm.set_pose_target(wpose)
arm.go()
rospy.sleep(1)
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def main():
rospy.init_node('arm_start_up', anonymous=True)
scene = PlanningSceneInterface()
robot = RobotCommander()
right_arm = MoveGroupCommander("right_arm")
left_arm = MoveGroupCommander("left_arm")
right_arm.set_planner_id("RRTConnect:");
left_arm.set_planner_id("RRTConnect:")
# move to a random target
#group.set_named_target("ahead")
#group.go()
#rospy.sleep(1)
right_arm.set_named_target("right_start")
right_arm.go()
rospy.sleep(1)
left_arm.set_named_target("left_start")
left_arm.go()
rospy.sleep(1)
class Robot:
def __init__(self, config, debug=0):
print "[INFO] Initialise Robot"
self.DEBUG = debug
# configuration
self.config = config
# initialise move groups
self.arm = MoveGroupCommander(ARM_GROUP)
self.gripper = MoveGroupCommander(GRIPPER_GROUP)
# initialise pick and place manager
if self.DEBUG is 1:
# verbose mode
self.pick_and_place = PickPlaceInterface(ARM_GROUP, GRIPPER_GROUP, False, True)
else:
# non verbose mode
self.pick_and_place = PickPlaceInterface(ARM_GROUP, GRIPPER_GROUP, False, False)
# tolerance: position (in m), orientation (in rad)
self.arm.set_goal_position_tolerance(0.01)
self.arm.set_goal_orientation_tolerance(0.1)
self.place_manager = None
self.pick_manager = None
self.initialise_move_actions()
self.start_position()
"""Initialise the place and pick manager.
"""
def initialise_move_actions(self):
self.place_manager = PlaceManager(self.arm, self.pick_and_place, self.config, self.DEBUG)
self.pick_manager = PickManager(self.arm, self.pick_and_place, self.DEBUG)
"""Move robot arm to "start position".
"""
def start_position(self):
self.arm.set_named_target(START_POSITION)
self.arm.go()
rospy.sleep(2)
class TestMove():
def __init__(self):
roscpp_initialize(sys.argv)
rospy.init_node('ur3_move', anonymous=True)
self.scene = PlanningSceneInterface()
self.robot_cmd = RobotCommander()
self.robot_arm = MoveGroupCommander(GROUP_NAME_ARM)
#robot_gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
self.robot_arm.set_goal_orientation_tolerance(0.005)
self.robot_arm.set_planning_time(5)
self.robot_arm.set_num_planning_attempts(5)
self.pose_goal = Pose()
rospy.sleep(2)
# Allow replanning to increase the odds of a solution
self.robot_arm.allow_replanning(True)
def move_code(self):
self.robot_arm.set_named_target("home") #go to goal state.
self.robot_arm.go(wait=True)
print("====== move plan go to home 1 ======")
rospy.sleep(0.5)
# print("====== move plan go to up ======")
self.robot_arm.set_named_target("up") #go to goal state.
self.robot_arm.go(wait=True)
print("====== move plan go to up ======")
rospy.sleep(0.5)
self.robot_arm.set_named_target("home") #go to goal state.
self.robot_arm.go(wait=True)
print("====== move plan go to home 1 ======")
rospy.sleep(0.5)
# robot_arm.set_named_target("up")
# robot_arm.go(wait=True)
robot_state = self.robot_arm.get_current_pose()
robot_angle = self.robot_arm.get_current_joint_values()
print(robot_state)
def move_TF(self):
self.ee_TF_list = [-2.046, 1.121, 0.575, 0.453, 0.561, -0.435, 0.538]
self.pose_goal.position.x = self.ee_TF_list[0]
self.pose_goal.position.y = self.ee_TF_list[1]
self.pose_goal.position.z = self.ee_TF_list[2]
self.pose_goal.orientation.x = self.ee_TF_list[3]
self.pose_goal.orientation.y = self.ee_TF_list[4]
self.pose_goal.orientation.z = self.ee_TF_list[5]
self.pose_goal.orientation.w = self.ee_TF_list[6]
self.robot_arm.set_pose_target(self.pose_goal)
self.robot_arm.go(True)
def __init__(self):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 初始化ROS节点
rospy.init_node('moveit_cartesian_demo', anonymous=True)
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander('arm')
robot = moveit_commander.RobotCommander()
# 当运动规划失败后，允许重新规划
arm.allow_replanning(False)
# 设置目标位置所使用的参考坐标系
reference_frame = 'base_link'
arm.set_pose_reference_frame(reference_frame)
# 设置位置(单位：米)和姿态（单位：弧度）的允许误差
arm.set_goal_position_tolerance(0.0001)
arm.set_goal_orientation_tolerance(0.0001)
arm.set_max_velocity_scaling_factor(1.0)
arm.set_planning_time(0.05) # 规划时间限制
# 获取终端link的名称
eef_link = arm.get_end_effector_link()
print "[INFO] Current pose:", arm.get_current_pose(eef_link).pose
# 控制机械臂运动到之前设置的姿态
arm.set_named_target('work')
arm.go()
self.group = arm
self.robot = robot
self.eef_link = eef_link
self.reference_frame = reference_frame
self.moveit_commander = moveit_commander
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_speed_demo')
# Initialize the move group for the right arm
arm = MoveGroupCommander('manipulator')
# Get the name of the end-effector link
end_effector_link = arm.get_end_effector_link()
# Allow replanning to increase the odds of a solution
arm.allow_replanning(True)
# Allow some leeway in position(meters) and orientation (radians)
arm.set_goal_position_tolerance(0.001)
arm.set_goal_orientation_tolerance(0.01)
# Start the arm in the "home" pose stored in the SRDF file
arm.set_named_target('home')
arm.go()
# 设置机械臂的目标位置，使用六轴的位置数据进行描述（单位：弧度）
joint_positions = [0.391410, -0.676384, -0.376217, 0.0, 1.052834, 0.454125]
arm.set_joint_value_target(joint_positions)
# 控制机械臂完成运动
arm.go()
# Start the arm in the "home" pose stored in the SRDF file
arm.set_named_target('home')
arm.go()
# Get back the planned trajectory
arm.set_joint_value_target(joint_positions)
traj = arm.plan()
# Scale the trajectory speed by a factor of 0.25
new_traj = scale_trajectory_speed(traj, 0.25)
# Execute the new trajectory
arm.execute(new_traj)
rospy.sleep(1)
arm.set_named_target('home')
arm.go()
# Exit MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_demo')
# Initialize the move group for the right arm
right_arm = MoveGroupCommander('right_arm')
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Allow some leeway in position(meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.02)
right_arm.set_goal_orientation_tolerance(0.1)
# Start the arm in the "resting" pose stored in the SRDF file
right_arm.set_named_target('rest')
right_arm.go()
# Move to the named "straight_forward" pose stored in the SRDF file
right_arm.set_named_target('wave')
right_arm.go()
rospy.sleep(2)
# Move back to the resting position at roughly 1/4 speed
right_arm.set_named_target('rest')
# Get back the planned trajectory
traj = right_arm.plan()
# Set the trajectory speed
new_traj = create_tracking_trajectory(traj, 1.0)
rospy.loginfo(new_traj)
# Execute the new trajectory
right_arm.execute(new_traj)
rospy.sleep(1)
# Exit MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_demo')
# Initialize the move group for the right arm
right_arm = MoveGroupCommander('right_arm')
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Allow some leeway in position(meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.02)
right_arm.set_goal_orientation_tolerance(0.1)
# Start the arm in the "resting" pose stored in the SRDF file
right_arm.set_named_target('resting')
right_arm.go()
# Move to the named "straight_forward" pose stored in the SRDF file
right_arm.set_named_target('straight_forward')
right_arm.go()
rospy.sleep(2)
# Move back to the resting position at roughly 1/4 speed
right_arm.set_named_target('resting')
# Get back the planned trajectory
traj = right_arm.plan()
# Scale the trajectory speed by a factor of 0.25
new_traj = scale_trajectory_speed(traj, 0.25)
# Execute the new trajectory
right_arm.execute(new_traj)
rospy.sleep(1)
# Exit MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
def __init__(self):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 初始化ROS节点
rospy.init_node('gripper_test')
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander('arm')
arm.set_max_velocity_scaling_factor(0.3)
arm.set_max_acceleration_scaling_factor(0.5)
# 初始化需要使用move group控制的机械臂中的gripper group
gripper = MoveGroupCommander('gripper')
self.gripper = gripper
# 控制机械臂先回到初始位置
arm.set_named_target('home')
arm.go()
# 控制夹爪张开
gripper.set_joint_value_target(GRIPPER_OPEN)
gripper.go()
rospy.sleep(0.5)
# 控制机械臂到目标位置
arm.set_named_target('test_2')
arm.go()
# 控制夹爪闭合
gripper.set_joint_value_target(GRIPPER_CLOSED)
gripper.go()
# 控制机械臂先回到初始位置
arm.set_named_target('home')
arm.go()
# 关闭并退出moveit
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def __init__(self):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 初始化ROS节点
rospy.init_node('moveit_cartesian_demo', anonymous=True)
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander('manipulator')
# 当运动规划失败后，允许重新规划
arm.allow_replanning(True)
# 设置目标位置所使用的参考坐标系
arm.set_pose_reference_frame('base_link')
# 设置位置(单位：米)和姿态（单位：弧度）的允许误差
arm.set_goal_position_tolerance(0.001)
arm.set_goal_orientation_tolerance(0.001)
# 设置允许的最大速度和加速度
arm.set_max_acceleration_scaling_factor(0.5)
arm.set_max_velocity_scaling_factor(0.5)
# 获取终端link的名称
end_effector_link = arm.get_end_effector_link()
# 控制机械臂先回到初始化位置
arm.set_named_target('home')
arm.go()
rospy.sleep(1)
# 获取当前位姿数据最为机械臂运动的起始位姿
start_pose = arm.get_current_pose(end_effector_link).pose
print start_pose
# 初始化路点列表
waypoints = []
# 将初始位姿加入路点列表
waypoints.append(start_pose)
# 设置路点数据，并加入路点列表
wpose = deepcopy(start_pose)
wpose.position.z -= 0.2
waypoints.append(deepcopy(wpose))
wpose.position.x += 0.1
waypoints.append(deepcopy(wpose))
wpose.position.y += 0.1
waypoints.append(deepcopy(wpose))
fraction = 0.0 #路径规划覆盖率
maxtries = 100 #最大尝试规划次数
attempts = 0 #已经尝试规划次数
# 设置机器臂当前的状态作为运动初始状态
arm.set_start_state_to_current_state()
# 尝试规划一条笛卡尔空间下的路径，依次通过所有路点
while fraction < 1.0 and attempts < maxtries:
(plan, fraction) = arm.compute_cartesian_path(
waypoints, # waypoint poses，路点列表
0.01, # eef_step，终端步进值
0.0, # jump_threshold，跳跃阈值
True) # avoid_collisions，避障规划
# 尝试次数累加
attempts += 1
# 打印运动规划进程
if attempts % 10 == 0:
rospy.loginfo("Still trying after " + str(attempts) +
" attempts...")
# 如果路径规划成功（覆盖率100%）,则开始控制机械臂运动
if fraction == 1.0:
rospy.loginfo("Path computed successfully. Moving the arm.")
arm.execute(plan)
rospy.loginfo("Path execution complete.")
# 如果路径规划失败，则打印失败信息
else:
rospy.loginfo("Path planning failed with only " + str(fraction) +
" success after " + str(maxtries) + " attempts.")
rospy.sleep(1)
# 控制机械臂先回到初始化位置
arm.set_named_target('home')
arm.go()
rospy.sleep(1)
# 关闭并退出moveit
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
if __name__ == '__main__':
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node("cobra_move_pick")
arm = MoveGroupCommander(PLANNING_GROUP)
# # tolerance
# arm.set_goal_position_tolerance(0.01)
# arm.set_goal_orientation_tolerance(0.01)
# arm.set_goal_joint_tolerance(0.01)
# arm.set_goal_tolerance(0.01)
# move arm to start position
arm.set_named_target(START_POSITION)
arm.go()
rospy.sleep(2)
# Action Clients for Pick
rospy.loginfo("Connecting to pickup AS")
pickup_ac = actionlib.SimpleActionClient('/pickup', PickupAction)
pickup_ac.wait_for_server()
rospy.loginfo("Successfully connected")
# create Planning Scene
scene = PlanningSceneInterface()
rospy.sleep(1)
# clean world
rospy.loginfo("Cleaning world objects")
punch_pose.pose.position.z = 0
temp_eul = None
#detach/remove current scene objects
print 'removing objects...'
robot.detach_object("bowl")
rospy.sleep(0.5)
scene.remove_world_object("bowl")
scene.remove_world_object("punch")
scene.remove_world_object("flat")
rospy.sleep(0.5)
#reset the gripper and arm position to home
robot.set_start_state_to_current_state()
robot.set_named_target("home")
robot.go()
startpose = PoseStamped()
startpose.header.frame_id = 'world'
startpose.header.stamp = rospy.Time.now()
startpose = robot.get_current_pose()
startpose.pose.position.x -= 0.3
robot.set_pose_target(startpose)
robot.go()
# gripper.set_start_state_to_current_state()
# gripper.set_named_target("default")
# gripper.go()
#add scene objects
print 'adding scene objects'
scene.add_mesh("bowl", bowl_pose, "8inhemi.STL")
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
# Initialize the ROS node
rospy.init_node('moveit_constraints_demo', anonymous=True)
robot = RobotCommander()
# Connect to the arm move group
arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the right gripper
gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Increase the planning time since constraint planning can take a while
arm.set_planning_time(5)
# Allow replanning to increase the odds of a solution
arm.allow_replanning(True)
# Set the right arm reference frame
arm.set_pose_reference_frame(REFERENCE_FRAME)
# Allow some leeway in position(meters) and orientation (radians)
arm.set_goal_position_tolerance(0.05)
arm.set_goal_orientation_tolerance(0.1)
# Get the name of the end-effector link
end_effector_link = arm.get_end_effector_link()
# Start in the "resting" configuration stored in the SRDF file
arm.set_named_target('l_arm_init')
# Plan and execute a trajectory to the goal configuration
arm.go()
rospy.sleep(1)
# Open the gripper
gripper.set_joint_value_target(GRIPPER_NEUTRAL)
gripper.go()
rospy.sleep(1)
# Set an initial target pose with the arm up and to the right
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = 0.263803774718
target_pose.pose.position.y = 0.295405791959
target_pose.pose.position.z = 0.690438884208
q = quaternion_from_euler(0, 0, -1.57079633)
target_pose.pose.orientation.x = q[0]
target_pose.pose.orientation.y = q[1]
target_pose.pose.orientation.z = q[2]
target_pose.pose.orientation.w = q[3]
# Set the start state and target pose, then plan and execute
arm.set_start_state(robot.get_current_state())
arm.set_pose_target(target_pose, end_effector_link)
arm.go()
rospy.sleep(2)
# Close the gripper
gripper.set_joint_value_target(GRIPPER_CLOSED)
gripper.go()
rospy.sleep(1)
# Store the current pose
start_pose = arm.get_current_pose(end_effector_link)
# Create a contraints list and give it a name
constraints = Constraints()
constraints.name = "Keep gripper horizontal"
# Create an orientation constraint for the right gripper
orientation_constraint = OrientationConstraint()
orientation_constraint.header = start_pose.header
orientation_constraint.link_name = arm.get_end_effector_link()
orientation_constraint.orientation.w = 1.0
orientation_constraint.absolute_x_axis_tolerance = 0.1
orientation_constraint.absolute_y_axis_tolerance = 0.1
orientation_constraint.absolute_z_axis_tolerance = 0.1
orientation_constraint.weight = 1.0
# q = quaternion_from_euler(0, 0, -1.57079633)
# orientation_constraint.orientation.x = q[0]
# orientation_constraint.orientation.y = q[1]
# orientation_constraint.orientation.z = q[2]
# orientation_constraint.orientation.w = q[3]
# Append the constraint to the list of contraints
constraints.orientation_constraints.append(orientation_constraint)
# Set the path constraints on the arm
arm.set_path_constraints(constraints)
# Set a target pose for the arm
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = 0.39000848183
target_pose.pose.position.y = 0.185900663329
target_pose.pose.position.z = 0.732752341378
target_pose.pose.orientation.w = 1
# Set the start state and target pose, then plan and execute
arm.set_start_state_to_current_state()
arm.set_pose_target(target_pose, end_effector_link)
arm.go()
rospy.sleep(1)
# Clear all path constraints
arm.clear_path_constraints()
# Open the gripper
gripper.set_joint_value_target(GRIPPER_NEUTRAL)
gripper.go()
rospy.sleep(1)
# Return to the "resting" configuration stored in the SRDF file
arm.set_named_target('l_arm_init')
# Plan and execute a trajectory to the goal configuration
arm.go()
rospy.sleep(1)
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit MoveIt
moveit_commander.os._exit(0)
def callback(self, data):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 创建一个存储物体颜色的字典对象
self.colors = dict()
# 等待场景准备就绪
scene = PlanningSceneInterface()
rospy.sleep(1)
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander('arm')
gripper = MoveGroupCommander('gripper')
# 获取终端link的名称
end_effector_link = arm.get_end_effector_link()
# 设置位置(单位：米)和姿态（单位：弧度）的允许误差
arm.set_goal_position_tolerance(0.01)
arm.set_goal_orientation_tolerance(0.05)
# 当运动规划失败后，允许重新规划
arm.allow_replanning(True)
# 设置目标位置所使用的参考坐标系
reference_frame = 'base'
arm.set_pose_reference_frame(reference_frame)
# 设置每次运动规划的时间限制：5s
arm.set_planning_time(5)
# 设置场景物体的名称
table_id = 'table'
# 控制机械臂先回到初始化位置
'''arm.set_named_target('home')
arm.go()
rospy.sleep(2)'''
# 设置桌面的高度
table_ground = 0.6
# 设置table、box1和box2的三维尺寸
table_size = [1.5, 0.7, 0.01]
# 将三个物体加入场景当中
table_pose = PoseStamped()
table_pose.header.frame_id = reference_frame
table_pose.pose.position.x = 0.0
table_pose.pose.position.y = 0.5
table_pose.pose.position.z = 0.825
table_pose.pose.orientation.w = 1.0
scene.add_box(table_id, table_pose, table_size)
rospy.sleep(1)
# 将桌子设置成红色，两个box设置成橙色
self.setColor(table_id, 0.8, 0, 0, 1.0)
# 将场景中的颜色设置发布
self.sendColors()
# 设置机械臂的运动目标位置，进行避障规划
'''orient = transformations.quaternion_from_euler(0, 1.57075, 0)
target_pose = PoseStamped()
target_pose.header.frame_id = reference_frame
target_pose.pose.position.x = -0.1
target_pose.pose.position.y = 0.5
target_pose.pose.position.z = 1.05
target_pose.pose.orientation.x = orient[0]
target_pose.pose.orientation.y = orient[1]
target_pose.pose.orientation.z = orient[2]
target_pose.pose.orientation.w = orient[3]'''
orient = transformations.quaternion_from_euler(0, 1.57075, 0)
target_pose = data
target_pose.pose.orientation.x = orient[0]
target_pose.pose.orientation.y = orient[1]
target_pose.pose.orientation.z = orient[2]
target_pose.pose.orientation.w = orient[3]
# 控制机械臂运动到目标位置
self.gripper_control(0)
result = None
arm.set_pose_target(target_pose, end_effector_link)
arm.go()
rospy.loginfo('Start grasping')
target_pose.pose.position.z -= 0.05
arm.set_pose_target(target_pose, end_effector_link)
arm.go()
self.gripper_control(0.36)
'''arm.attach_object( box2_id)
arm.set_named_target('home')
arm.go()'''
arm.set_named_target('home')
arm.go()
self.gripper_control(0)
rospy.loginfo('Grasping done')
rospy.sleep(2)
judge_client(True)
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def __init__(self):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 初始化ROS节点
rospy.init_node('moveit_obstacles_demo')
# 初始化场景对象
scene = PlanningSceneInterface()
# 创建一个发布场景变化信息的发布者
self.scene_pub = rospy.Publisher('planning_scene',
PlanningScene,
queue_size=5)
rospy.Subscriber("chatter", Float64MultiArray, callback)
# 创建一个存储物体颜色的字典对象
self.colors = dict()
# 等待场景准备就绪
rospy.sleep(1)
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander('arm')
gripper = MoveGroupCommander('gripper')
# 获取终端link的名称
end_effector_link = arm.get_end_effector_link()
# 设置位置(单位：米)和姿态（单位：弧度）的允许误差
arm.set_goal_position_tolerance(0.01)
gripper.set_goal_position_tolerance(0.01)
arm.set_goal_orientation_tolerance(0.2)
# 当运动规划失败后，允许重新规划
arm.allow_replanning(True)
# 设置目标位置所使用的参考坐标系
reference_frame = 'base_link'
arm.set_pose_reference_frame(reference_frame)
# 设置每次运动规划的时间限制：5s
arm.set_planning_time(5)
# 设置场景物体的名称
table_id = 'table'
# cy_id = 'cy'
box1_id = 'box1'
box2_id = 'box2'
box3_id = 'box3'
sphere_id = 'sphere'
# 移除场景中之前运行残留的物体
scene.remove_world_object(table_id)
scene.remove_world_object(box1_id)
scene.remove_world_object(box2_id)
scene.remove_world_object(box3_id)
scene.remove_world_object(sphere_id)
rospy.sleep(1)
#控制机械臂先回到初始化位置
arm.set_named_target('init')
arm.go()
rospy.sleep(1)
# arm.set_named_target('start')
# arm.go()
# rospy.sleep(1)
gripper.set_joint_value_target([0.05])
gripper.go()
rospy.sleep(0)
# 设置桌面的高度
table_ground = 0.37
# 设置table、box1和box2的三维尺寸
table_size = [0.2, 0.3, 0.01]
box1_size = [0.01, 0.01, 0.19]
box2_size = [0.01, 0.01, 0.19]
box3_size = [0.005, 0.01, 0.3]
sphere_R = 0.01
error = 0.03
# 将三个物体加入场景当中
table_pose = PoseStamped()
table_pose.header.frame_id = reference_frame
table_pose.pose.position.x = -table_size[0] / 2.0
table_pose.pose.position.y = 0.0
table_pose.pose.position.z = table_ground + table_size[2] / 2.0
table_pose.pose.orientation.w = 1.0
scene.add_box(table_id, table_pose, table_size)
#scene.add_cylinder
box1_pose = PoseStamped()
box1_pose.header.frame_id = reference_frame
box1_pose.pose.position.x = -0.09
box1_pose.pose.position.y = table_size[0] / 2.0
box1_pose.pose.position.z = 0.18 + box1_size[2] / 2.0
box1_pose.pose.orientation.w = 1.0
scene.add_box(box1_id, box1_pose, box1_size)
box2_pose = PoseStamped()
box2_pose.header.frame_id = reference_frame
box2_pose.pose.position.x = -0.09
box2_pose.pose.position.y = -table_size[0] / 2.0
box2_pose.pose.position.z = 0.18 + box1_size[2] / 2.0
box2_pose.pose.orientation.w = 1.0
scene.add_box(box2_id, box2_pose, box2_size)
# box3_pose = PoseStamped()
# box3_pose.header.frame_id = reference_frame
# box3_pose.pose.position.x = pos_aim[0]
# box3_pose.pose.position.y = pos_aim[1]
# box3_pose.pose.position.z = box3_size[2]/2.0+0.1
# box3_pose.pose.orientation.w = 1.0
# scene.add_box(box3_id, box3_pose, box3_size)
sphere_pose = PoseStamped()
sphere_pose.header.frame_id = reference_frame
sphere_pose.pose.position.x = pos_aim[0] + 0
sphere_pose.pose.position.y = pos_aim[1]
sphere_pose.pose.position.z = pos_aim[2]
sphere_pose.pose.orientation.w = 1.0
scene.add_sphere(sphere_id, sphere_pose, sphere_R)
# 将桌子设置成红色，两个box设置成橙色
self.setColor(table_id, 0, 0, 0, 1)
# self.setColor(table_id, 0.8, 0, 0, 1.0)
# self.setColor(box1_id, 0.8, 0.4, 0, 1.0)
self.setColor(box1_id, 1, 1, 1, 1.0)
self.setColor(box2_id, 1, 1, 1, 1.0)
self.setColor(box3_id, 1, 1, 1, 1.0)
self.setColor(sphere_id, 0.8, 0, 0, 1.0)
# 将场景中的颜色设置发布
self.sendColors()
# rospy.INFO("waiting...")
# if(Recive_FLAG==1):
# rospy.INFO("OK！")
# 设置机械臂的运动目标位置
target_pose = PoseStamped()
target_pose.header.frame_id = reference_frame
target_pose.pose.position.x = pos_aim[0] - error
target_pose.pose.position.y = pos_aim[1]
target_pose.pose.position.z = pos_aim[2]
# target_pose.pose.orientation.w = 1.0
#####0.3
# 0.2 0.2 0.2 0.15 0.15
# 0.12 0.11 0.12 0.15 0.15
# 0.30 0.245 0.35 0.35 0.25
# 控制机械臂运动到目标位置
arm.set_pose_target(target_pose, end_effector_link)
arm.go()
rospy.sleep(1)
gripper.set_joint_value_target([0.03])
gripper.go()
rospy.sleep(1)
# # 控制机械臂终端向x移动5cm
arm.shift_pose_target(0, 0.01, end_effector_link)
arm.go()
rospy.sleep(1)
gripper.set_joint_value_target([0.05])
gripper.go()
rospy.sleep(1)
# # 设置机械臂的运动目标位置，进行避障规划
# target_pose2 = PoseStamped()
# target_pose2.header.frame_id = reference_frame
# target_pose2.pose.position.x = 0.15
# target_pose2.pose.position.y = 0 #-0.25
# target_pose2.pose.position.z = table_pose.pose.position.z + table_size[2] + 0.05
# target_pose2.pose.orientation.w = 1.0
# # 控制机械臂运动到目标位置
# arm.set_pose_target(target_pose2, end_effector_link)
# arm.go()
# rospy.sleep(2)
#控制机械臂回到初始化位置
arm.set_named_target('init')
arm.go()
# 关闭并退出moveit
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
rospy.spin()
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_demo')
self.gripper_opened = [rospy.get_param(GRIPPER_PARAM + "/max_opening")]
self.gripper_closed = [rospy.get_param(GRIPPER_PARAM + "/min_opening")]
self.gripper_neutral = [rospy.get_param(GRIPPER_PARAM + "/neutral")]
self.gripper_tighten = rospy.get_param(GRIPPER_PARAM + "/tighten")
# We need a tf listener to convert poses into arm reference base
self.tf_listener = tf.TransformListener()
# Use the planning scene object to add or remove objects
scene = PlanningSceneInterface()
# Create a scene publisher to push changes to the scene
self.scene_pub = rospy.Publisher('planning_scene',
PlanningScene,
queue_size=10)
# Create a publisher for displaying gripper poses
self.gripper_pose_pub = rospy.Publisher('target_pose',
PoseStamped,
queue_size=10)
# Create a dictionary to hold object colors
self.colors = dict()
# Initialize the move group for the right arm
arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the right gripper
gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Get the name of the end-effector link
end_effector_link = arm.get_end_effector_link()
# Allow some leeway in position (meters) and orientation (radians)
arm.set_goal_position_tolerance(0.04)
arm.set_goal_orientation_tolerance(0.1)
# Allow replanning to increase the odds of a solution
arm.allow_replanning(True)
# Set the right arm reference frame
arm.set_pose_reference_frame(REFERENCE_FRAME)
# Allow 5 seconds per planning attempt
arm.set_planning_time(5)
# Set a limit on the number of pick attempts before bailing
max_pick_attempts = 3
# Set a limit on the number of place attempts
max_place_attempts = 3
rospy.loginfo("Scaling for MoveIt timeout=" + str(
rospy.get_param(
'/move_group/trajectory_execution/allowed_execution_duration_scaling'
)))
# Give the scene a chance to catch up
rospy.sleep(2)
# Give each of the scene objects a unique name
#table_id = 'table' We also remove the table object in order to run a test
#box1_id = 'box1' These boxes are commented as we do not need them
#box2_id = 'box2'
target_id = 'target'
tool_id = 'tool'
# Remove leftover objects from a previous run
#scene.remove_world_object(table_id)
#scene.remove_world_object(box1_id) These boxes are commented as we do not need them
#scene.remove_world_object(box2_id)
scene.remove_world_object(target_id)
scene.remove_world_object(tool_id)
# Remove any attached objects from a previous session
scene.remove_attached_object(GRIPPER_FRAME, target_id)
# Give the scene a chance to catch up
rospy.sleep(1)
# Start the arm in the "arm_up" pose stored in the SRDF file
rospy.loginfo("Set Arm: right_up")
arm.set_named_target('right_up')
if arm.go() != True:
rospy.logwarn(" Go failed")
rospy.sleep(2)
# Move the gripper to the closed position
rospy.loginfo("Set Gripper: Close " + str(self.gripper_closed))
gripper.set_joint_value_target(self.gripper_closed)
if gripper.go() != True:
rospy.logwarn(" Go failed")
rospy.sleep(2)
# Move the gripper to the neutral position
rospy.loginfo("Set Gripper: Neutral " + str(self.gripper_neutral))
gripper.set_joint_value_target(self.gripper_neutral)
if gripper.go() != True:
rospy.logwarn(" Go failed")
rospy.sleep(2)
# Move the gripper to the open position
rospy.loginfo("Set Gripper: Open " + str(self.gripper_opened))
gripper.set_joint_value_target(self.gripper_opened)
if gripper.go() != True:
rospy.logwarn(" Go failed")
rospy.sleep(2)
# Set the height of the table off the ground
#table_ground = 0.4
# Set the dimensions of the scene objects [l, w, h]
#table_size = [0.2, 0.7, 0.01]
#box1_size = [0.1, 0.05, 0.05] commented for the same reasons as previously
#box2_size = [0.05, 0.05, 0.15]
# Set the target size [l, w, h]
target_size = [
0.018, 0.018, 0.018
] #[0.02, 0.005, 0.12] original object dimensions in meters
# Add a table top and two boxes to the scene
#table_pose = PoseStamped()
#table_pose.header.frame_id = REFERENCE_FRAME
#table_pose.pose.position.x = 0.36
#table_pose.pose.position.y = 0.0
#table_pose.pose.position.z = table_ground + table_size[2] -0.08 / 2.0 #0.4+0.01/2 aka table_ground + table_size[2] + target_size[2] / 2.0
#table_pose.pose.orientation.w = 1.0
#scene.add_box(table_id, table_pose, table_size)
#box1_pose = PoseStamped() These two blocks of code are commented as they assign postion to unwanted boxes
#box1_pose.header.frame_id = REFERENCE_FRAME
#box1_pose.pose.position.x = table_pose.pose.position.x - 0.04
#box1_pose.pose.position.y = 0.0
#box1_pose.pose.position.z = table_ground + table_size[2] + box1_size[2] / 2.0
#box1_pose.pose.orientation.w = 1.0
#scene.add_box(box1_id, box1_pose, box1_size)
#box2_pose = PoseStamped()
#box2_pose.header.frame_id = REFERENCE_FRAME
#box2_pose.pose.position.x = table_pose.pose.position.x - 0.06
#box2_pose.pose.position.y = 0.2
#box2_pose.pose.position.z = table_ground + table_size[2] + box2_size[2] / 2.0
#box2_pose.pose.orientation.w = 1.0
#scene.add_box(box2_id, box2_pose, box2_size)
# Set the target pose in between the boxes and on the table
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = -0.03 #table_pose.pose.position.x - 0.03
target_pose.pose.position.y = 0.1
target_pose.pose.position.z = 0.4 + 0.01 + 0.018 - 0.08 / 2 #table_ground + table_size[2] + target_size[2] / 2.0 table_ground + table_size[2] + target_size[2] -0.08 / 2.0
target_pose.pose.orientation.w = 1.0
# Add the target object to the scene
scene.add_box(target_id, target_pose, target_size)
# Make the table red and the boxes orange
#self.setColor(table_id, 0.8, 0, 0, 1.0)
#self.setColor(box1_id, 0.8, 0.4, 0, 1.0)
#self.setColor(box2_id, 0.8, 0.4, 0, 1.0)
# Make the target yellow
self.setColor(target_id, 0.9, 0.9, 0, 1.0)
# Send the colors to the planning scene
self.sendColors()
# Set the support surface name to the table object
#arm.set_support_surface_name(table_id)
# Specify a pose to place the target after being picked up
place_pose = PoseStamped()
place_pose.header.frame_id = REFERENCE_FRAME
place_pose.pose.position.x = -0.03 #table_pose.pose.position.x - 0.03
place_pose.pose.position.y = -0.15
place_pose.pose.position.z = 0.4 + 0.01 + 0.018 - 0.08 / 2 #table_ground + table_size[2] + target_size[2] -0.08 / 2.0 0.4+0.01+0.018/2 aka table_ground + table_size[2] + target_size[2] / 2.0
place_pose.pose.orientation.w = 1.0
# Initialize the grasp pose to the target pose
grasp_pose = target_pose
# Shift the grasp pose by half the width of the target to center it
grasp_pose.pose.position.y -= target_size[1] / 2.0
# Generate a list of grasps
grasps = self.make_grasps(grasp_pose, [target_id],
[target_size[1] - self.gripper_tighten])
# Track success/failure and number of attempts for pick operation
result = MoveItErrorCodes.FAILURE
n_attempts = 0
# Repeat until we succeed or run out of attempts
while result != MoveItErrorCodes.SUCCESS and n_attempts < max_pick_attempts:
rospy.loginfo("Pick attempt #" + str(n_attempts))
for grasp in grasps:
# Publish the grasp poses so they can be viewed in RViz
self.gripper_pose_pub.publish(grasp.grasp_pose)
rospy.sleep(0.2)
result = arm.pick(target_id, grasps)
if result == MoveItErrorCodes.SUCCESS:
break
n_attempts += 1
rospy.sleep(0.2)
# If the pick was successful, attempt the place operation
if result == MoveItErrorCodes.SUCCESS:
rospy.loginfo(" Pick: Done!")
# Generate valid place poses
places = self.make_places(place_pose)
success = False #from here we are forcing the success cases by stting and making it always true it makes an error appear and the arm stays to the middle position
n_attempts = 0
# Repeat until we succeed or run out of attempts
while not success and n_attempts < max_place_attempts: #while not has been removed added = after operator <
rospy.loginfo("Place attempt #" + str(n_attempts))
for place in places:
# Publish the place poses so they can be viewed in RViz
self.gripper_pose_pub.publish(place)
rospy.sleep(0.2)
success = arm.place(target_id, place)
break
if success:
break
n_attempts += 1
rospy.sleep(0.2)
if not success:
rospy.logerr("Place operation failed after " +
str(n_attempts) + " attempts.")
else: #end of forcing
rospy.loginfo(" Place: Done!")
else:
rospy.logerr("Pick operation failed after " + str(n_attempts) +
" attempts.")
# Return the arm to the "resting" pose stored in the SRDF file (passing through right_up)
arm.set_named_target('right_up')
arm.go()
arm.set_named_target('resting')
arm.go()
# Open the gripper to the neutral position
gripper.set_joint_value_target(self.gripper_neutral)
gripper.go()
rospy.sleep(1)
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
# Initialize the ROS node
rospy.init_node('moveit_demo', anonymous=True)
robot = RobotCommander()
# Connect to the right_arm move group
right_arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the right gripper
right_gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Increase the planning time since constraint planning can take a while
right_arm.set_planning_time(15)
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Set the right arm reference frame
right_arm.set_pose_reference_frame(REFERENCE_FRAME)
# Allow some leeway in position(meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.05)
right_arm.set_goal_orientation_tolerance(0.1)
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Start in the "resting" configuration stored in the SRDF file
right_arm.set_named_target('right_arm_zero')
# Plan and execute a trajectory to the goal configuration
right_arm.go()
rospy.sleep(1)
# Open the gripper
right_gripper.set_joint_value_target(GRIPPER_NEUTRAL)
right_gripper.go()
rospy.sleep(1)
# Set an initial target pose with the arm up and to the right
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = 0.237012590198
target_pose.pose.position.y = -0.0747191267505
target_pose.pose.position.z = 0.901578401949
target_pose.pose.orientation.w = 1.0
# Set the start state and target pose, then plan and execute
right_arm.set_start_state(robot.get_current_state())
right_arm.set_pose_target(target_pose, end_effector_link)
right_arm.go()
rospy.sleep(2)
# Close the gripper
right_gripper.set_joint_value_target(GRIPPER_CLOSED)
right_gripper.go()
rospy.sleep(1)
# Store the current pose
start_pose = right_arm.get_current_pose(end_effector_link)
# Create a contraints list and give it a name
constraints = Constraints()
constraints.name = "Keep gripper horizontal"
# Create an orientation constraint for the right gripper
orientation_constraint = OrientationConstraint()
orientation_constraint.header = start_pose.header
orientation_constraint.link_name = right_arm.get_end_effector_link()
orientation_constraint.orientation.w = 1.0
orientation_constraint.absolute_x_axis_tolerance = 0.1
orientation_constraint.absolute_y_axis_tolerance = 0.1
orientation_constraint.absolute_z_axis_tolerance = 3.14
orientation_constraint.weight = 1.0
# Append the constraint to the list of contraints
constraints.orientation_constraints.append(orientation_constraint)
# Set the path constraints on the right_arm
right_arm.set_path_constraints(constraints)
# Set a target pose for the arm
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = 0.173187824708
target_pose.pose.position.y = -0.0159929871606
target_pose.pose.position.z = 0.692596608605
target_pose.pose.orientation.w = 1.0
# Set the start state and target pose, then plan and execute
right_arm.set_start_state_to_current_state()
right_arm.set_pose_target(target_pose, end_effector_link)
right_arm.go()
rospy.sleep(1)
# Clear all path constraints
right_arm.clear_path_constraints()
# Open the gripper
right_gripper.set_joint_value_target(GRIPPER_NEUTRAL)
right_gripper.go()
rospy.sleep(1)
# Return to the "resting" configuration stored in the SRDF file
right_arm.set_named_target('right_arm_zero')
# Plan and execute a trajectory to the goal configuration
right_arm.go()
rospy.sleep(1)
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit MoveIt
moveit_commander.os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
# Initialize the ROS node
rospy.init_node('moveit_demo', anonymous=True)
robot = RobotCommander()
# Connect to the right_arm move group
right_arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the right gripper
right_gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Increase the planning time since contraint planning can take a while
right_arm.set_planning_time(15)
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Set the right arm reference frame
right_arm.set_pose_reference_frame(REFERENCE_FRAME)
# Allow some leeway in position(meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.05)
right_arm.set_goal_orientation_tolerance(0.1)
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Start in the "resting" configuration stored in the SRDF file
right_arm.set_named_target('resting')
# Plan and execute a trajectory to the goal configuration
right_arm.go()
rospy.sleep(1)
# Open the gripper
right_gripper.set_joint_value_target(GRIPPER_NEUTRAL)
right_gripper.go()
rospy.sleep(1)
# Set an initial target pose with the arm up and to the right
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = 0.237012590198
target_pose.pose.position.y = -0.0747191267505
target_pose.pose.position.z = 0.901578401949
target_pose.pose.orientation.w = 1.0
# Set the start state and target pose, then plan and execute
right_arm.set_start_state(robot.get_current_state())
right_arm.set_pose_target(target_pose, end_effector_link)
right_arm.go()
rospy.sleep(2)
# Close the gripper
right_gripper.set_joint_value_target(GRIPPER_CLOSED)
right_gripper.go()
rospy.sleep(1)
# Store the current pose
start_pose = right_arm.get_current_pose(end_effector_link)
# Create a contraints list and give it a name
constraints = Constraints()
constraints.name = "Keep gripper horizontal"
# Create an orientation constraint for the right gripper
orientation_constraint = OrientationConstraint()
orientation_constraint.header = start_pose.header
orientation_constraint.link_name = right_arm.get_end_effector_link()
orientation_constraint.orientation.w = 1.0
orientation_constraint.absolute_x_axis_tolerance = 0.1
orientation_constraint.absolute_y_axis_tolerance = 0.1
orientation_constraint.absolute_z_axis_tolerance = 3.14
orientation_constraint.weight = 1.0
# Append the constraint to the list of contraints
constraints.orientation_constraints.append(orientation_constraint)
# Set the path constraints on the right_arm
right_arm.set_path_constraints(constraints)
# Set a target pose for the arm
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = 0.173187824708
target_pose.pose.position.y = -0.0159929871606
target_pose.pose.position.z = 0.692596608605
target_pose.pose.orientation.w = 1.0
# Set the start state and target pose, then plan and execute
right_arm.set_start_state_to_current_state()
right_arm.set_pose_target(target_pose, end_effector_link)
right_arm.go()
rospy.sleep(1)
# Clear all path constraints
right_arm.clear_path_constraints()
# Open the gripper
right_gripper.set_joint_value_target(GRIPPER_NEUTRAL)
right_gripper.go()
rospy.sleep(1)
# Return to the "resting" configuration stored in the SRDF file
right_arm.set_named_target('resting')
# Plan and execute a trajectory to the goal configuration
right_arm.go()
rospy.sleep(1)
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit MoveIt
moveit_commander.os._exit(0)
#!/usr/bin/env python
import rospy
from moveit_commander import RobotCommander, PlanningSceneInterface, MoveGroupCommander
if __name__ == '__main__':
rospy.init_node('heh')
scene = PlanningSceneInterface()
robot = MoveGroupCommander("sia5d");
gripper = MoveGroupCommander("gripper");
rospy.sleep(1)
while not rospy.is_shutdown():
gripper.set_named_target('pinch')
gripper.go()
rospy.sleep(1)
gripper.set_named_target('default')
gripper.go()
rospy.sleep(1)
rospy.spin()
def __init__(self):
roscpp_initialize(sys.argv)
rospy.init_node('moveit_py_demo', anonymous=True)
scene = PlanningSceneInterface()
robot = RobotCommander()
right_arm = MoveGroupCommander("right_arm")
right_gripper = MoveGroupCommander("right_gripper")
eef = right_arm.get_end_effector_link()
rospy.sleep(2)
scene.remove_attached_object("right_gripper_link", "part")
# clean the scene
scene.remove_world_object("table")
scene.remove_world_object("part")
right_arm.set_named_target("start1")
right_arm.go()
right_gripper.set_named_target("open")
right_gripper.go()
rospy.sleep(1)
# publish a demo scene
p = PoseStamped()
p.header.frame_id = robot.get_planning_frame()
# add a table
#p.pose.position.x = 0.42
#p.pose.position.y = -0.2
#p.pose.position.z = 0.3
#scene.add_box("table", p, (0.5, 1.5, 0.6))
# add an object to be grasped
p.pose.position.x = 0.15
p.pose.position.y = -0.12
p.pose.position.z = 0.7
scene.add_box("part", p, (0.07, 0.01, 0.2))
rospy.sleep(1)
g = Grasp()
g.id = "test"
start_pose = PoseStamped()
start_pose.header.frame_id = FIXED_FRAME
# start the gripper in a neutral pose part way to the target
start_pose.pose.position.x = 0.0130178
start_pose.pose.position.y = -0.125155
start_pose.pose.position.z = 0.597653
start_pose.pose.orientation.x = 0.0
start_pose.pose.orientation.y = 0.388109
start_pose.pose.orientation.z = 0.0
start_pose.pose.orientation.w = 0.921613
right_arm.set_pose_target(start_pose)
right_arm.go()
rospy.sleep(2)
# generate a list of grasps
#grasps = self.make_grasps(start_pose)
#result = False
#n_attempts = 0
# repeat until will succeed
#while result == False:
#result = robot.right_arm.pick("part", grasps)
#n_attempts += 1
#print "Attempts: ", n_attempts
#rospy.sleep(0.2)
rospy.spin()
roscpp_shutdown()
class SmartGrasper(object):
"""
This is the helper library to easily access the different functionalities of the simulated robot
from python.
"""
__last_joint_state = None
__current_model_name = "cricket_ball"
__path_to_models = "/root/.gazebo/models/"
def __init__(self):
"""
This constructor initialises the different necessary connections to the topics and services
and resets the world to start in a good position.
"""
rospy.init_node("smart_grasper")
self.__joint_state_sub = rospy.Subscriber("/joint_states", JointState,
self.__joint_state_cb, queue_size=1)
rospy.wait_for_service("/gazebo/get_model_state", 10.0)
rospy.wait_for_service("/gazebo/reset_world", 10.0)
self.__reset_world = rospy.ServiceProxy("/gazebo/reset_world", Empty)
self.__get_pose_srv = rospy.ServiceProxy("/gazebo/get_model_state", GetModelState)
rospy.wait_for_service("/gazebo/pause_physics")
self.__pause_physics = rospy.ServiceProxy("/gazebo/pause_physics", Empty)
rospy.wait_for_service("/gazebo/unpause_physics")
self.__unpause_physics = rospy.ServiceProxy("/gazebo/unpause_physics", Empty)
rospy.wait_for_service("/controller_manager/switch_controller")
self.__switch_ctrl = rospy.ServiceProxy("/controller_manager/switch_controller", SwitchController)
rospy.wait_for_service("/gazebo/set_model_configuration")
self.__set_model = rospy.ServiceProxy("/gazebo/set_model_configuration", SetModelConfiguration)
rospy.wait_for_service("/gazebo/delete_model")
self.__delete_model = rospy.ServiceProxy("/gazebo/delete_model", DeleteModel)
rospy.wait_for_service("/gazebo/spawn_sdf_model")
self.__spawn_model = rospy.ServiceProxy("/gazebo/spawn_sdf_model", SpawnModel)
rospy.wait_for_service('/get_planning_scene', 10.0)
self.__get_planning_scene = rospy.ServiceProxy('/get_planning_scene', GetPlanningScene)
self.__pub_planning_scene = rospy.Publisher('/planning_scene', PlanningScene, queue_size=10, latch=True)
self.arm_commander = MoveGroupCommander("arm")
self.hand_commander = MoveGroupCommander("hand")
self.__hand_traj_client = SimpleActionClient("/hand_controller/follow_joint_trajectory",
FollowJointTrajectoryAction)
self.__arm_traj_client = SimpleActionClient("/arm_controller/follow_joint_trajectory",
FollowJointTrajectoryAction)
if self.__hand_traj_client.wait_for_server(timeout=rospy.Duration(4.0)) is False:
rospy.logfatal("Failed to connect to /hand_controller/follow_joint_trajectory in 4sec.")
raise Exception("Failed to connect to /hand_controller/follow_joint_trajectory in 4sec.")
if self.__arm_traj_client.wait_for_server(timeout=rospy.Duration(4.0)) is False:
rospy.logfatal("Failed to connect to /arm_controller/follow_joint_trajectory in 4sec.")
raise Exception("Failed to connect to /arm_controller/follow_joint_trajectory in 4sec.")
self.reset_world()
def reset_world(self):
"""
Resets the object poses in the world and the robot joint angles.
"""
self.__switch_ctrl.call(start_controllers=[],
stop_controllers=["hand_controller", "arm_controller", "joint_state_controller"],
strictness=SwitchControllerRequest.BEST_EFFORT)
self.__pause_physics.call()
joint_names = ['shoulder_pan_joint', 'shoulder_lift_joint', 'elbow_joint',
'wrist_1_joint', 'wrist_2_joint', 'wrist_3_joint', 'H1_F1J1', 'H1_F1J2', 'H1_F1J3',
'H1_F2J1', 'H1_F2J2', 'H1_F2J3', 'H1_F3J1', 'H1_F3J2', 'H1_F3J3']
joint_positions = [1.2, 0.3, -1.5, -0.5, -1.5, 0.0, 0.0, -0.3, 0.0, 0.0, -0.3, 0.0, 0.0, -0.3, 0.0]
self.__set_model.call(model_name="smart_grasping_sandbox",
urdf_param_name="robot_description",
joint_names=joint_names,
joint_positions=joint_positions)
timer = Timer(0.0, self.__start_ctrl)
timer.start()
time.sleep(0.1)
self.__unpause_physics.call()
self.__reset_world.call()
def get_object_pose(self):
"""
Gets the pose of the ball in the world frame.
@return The pose of the ball.
"""
return self.__get_pose_srv.call(self.__current_model_name, "world").pose
def get_tip_pose(self):
"""
Gets the current pose of the robot's tooltip in the world frame.
@return the tip pose
"""
return self.arm_commander.get_current_pose(self.arm_commander.get_end_effector_link()).pose
def move_tip_absolute(self, target):
"""
Moves the tooltip to the absolute target in the world frame
@param target is a geometry_msgs.msg.Pose
@return True on success
"""
self.arm_commander.set_start_state_to_current_state()
self.arm_commander.set_pose_targets([target])
plan = self.arm_commander.plan()
if not self.arm_commander.execute(plan):
return False
return True
def move_tip(self, x=0., y=0., z=0., roll=0., pitch=0., yaw=0.):
"""
Moves the tooltip in the world frame by the given x,y,z / roll,pitch,yaw.
@return True on success
"""
transform = PyKDL.Frame(PyKDL.Rotation.RPY(pitch, roll, yaw),
PyKDL.Vector(-x, -y, -z))
tip_pose = self.get_tip_pose()
tip_pose_kdl = posemath.fromMsg(tip_pose)
final_pose = toMsg(tip_pose_kdl * transform)
self.arm_commander.set_start_state_to_current_state()
self.arm_commander.set_pose_targets([final_pose])
plan = self.arm_commander.plan()
if not self.arm_commander.execute(plan):
return False
return True
def send_command(self, command, duration=0.2):
"""
Send a dictionnary of joint targets to the arm and hand directly.
@param command: a dictionnary of joint names associated with a target:
{"H1_F1J1": -1.0, "shoulder_pan_joint": 1.0}
@param duration: the amount of time it will take to get there in seconds. Needs to be bigger than 0.0
"""
hand_goal = None
arm_goal = None
for joint, target in command.items():
if "H1" in joint:
if not hand_goal:
hand_goal = FollowJointTrajectoryGoal()
point = JointTrajectoryPoint()
point.time_from_start = rospy.Duration.from_sec(duration)
hand_goal.trajectory.points.append(point)
hand_goal.trajectory.joint_names.append(joint)
hand_goal.trajectory.points[0].positions.append(target)
else:
if not arm_goal:
arm_goal = FollowJointTrajectoryGoal()
point = JointTrajectoryPoint()
point.time_from_start = rospy.Duration.from_sec(duration)
arm_goal.trajectory.points.append(point)
arm_goal.trajectory.joint_names.append(joint)
arm_goal.trajectory.points[0].positions.append(target)
if arm_goal:
self.__arm_traj_client.send_goal_and_wait(arm_goal)
if hand_goal:
self.__hand_traj_client.send_goal_and_wait(hand_goal)
def get_current_joint_state(self):
"""
Gets the current state of the robot.
@return joint positions, velocity and efforts as three dictionnaries
"""
joints_position = {n: p for n, p in
zip(self.__last_joint_state.name,
self.__last_joint_state.position)}
joints_velocity = {n: v for n, v in
zip(self.__last_joint_state.name,
self.__last_joint_state.velocity)}
joints_effort = {n: v for n, v in
zip(self.__last_joint_state.name,
self.__last_joint_state.effort)}
return joints_position, joints_velocity, joints_effort
def open_hand(self):
"""
Opens the hand.
@return True on success
"""
self.hand_commander.set_named_target("open")
plan = self.hand_commander.plan()
if not self.hand_commander.execute(plan, wait=True):
return False
return True
def close_hand(self):
"""
Closes the hand.
@return True on success
"""
self.hand_commander.set_named_target("close")
plan = self.hand_commander.plan()
if not self.hand_commander.execute(plan, wait=True):
return False
return True
def check_fingers_collisions(self, enable=True):
"""
Disables or enables the collisions check between the fingers and the objects / table
@param enable: set to True to enable / False to disable
@return True on success
"""
objects = ["cricket_ball__link", "drill__link", "cafe_table__link"]
while self.__pub_planning_scene.get_num_connections() < 1:
rospy.loginfo("waiting for someone to subscribe to the /planning_scene")
rospy.sleep(0.1)
request = PlanningSceneComponents(components=PlanningSceneComponents.ALLOWED_COLLISION_MATRIX)
response = self.__get_planning_scene(request)
acm = response.scene.allowed_collision_matrix
for object_name in objects:
if object_name not in acm.entry_names:
# add object to allowed collision matrix
acm.entry_names += [object_name]
for row in range(len(acm.entry_values)):
acm.entry_values[row].enabled += [False]
new_row = deepcopy(acm.entry_values[0])
acm.entry_values += {new_row}
for index_entry_values, entry_values in enumerate(acm.entry_values):
if "H1_F" in acm.entry_names[index_entry_values]:
for index_value, _ in enumerate(entry_values.enabled):
if acm.entry_names[index_value] in objects:
if enable:
acm.entry_values[index_entry_values].enabled[index_value] = False
else:
acm.entry_values[index_entry_values].enabled[index_value] = True
elif acm.entry_names[index_entry_values] in objects:
for index_value, _ in enumerate(entry_values.enabled):
if "H1_F" in acm.entry_names[index_value]:
if enable:
acm.entry_values[index_entry_values].enabled[index_value] = False
else:
acm.entry_values[index_entry_values].enabled[index_value] = True
planning_scene_diff = PlanningScene(is_diff=True, allowed_collision_matrix=acm)
self.__pub_planning_scene.publish(planning_scene_diff)
rospy.sleep(1.0)
return True
def pick(self):
"""
Does its best to pick the ball.
"""
rospy.loginfo("Moving to Pregrasp")
self.open_hand()
time.sleep(0.1)
ball_pose = self.get_object_pose()
ball_pose.position.z += 0.5
#setting an absolute orientation (from the top)
quaternion = quaternion_from_euler(-pi/2., 0.0, 0.0)
ball_pose.orientation.x = quaternion[0]
ball_pose.orientation.y = quaternion[1]
ball_pose.orientation.z = quaternion[2]
ball_pose.orientation.w = quaternion[3]
self.move_tip_absolute(ball_pose)
time.sleep(0.1)
rospy.loginfo("Grasping")
self.move_tip(y=-0.164)
time.sleep(0.1)
self.check_fingers_collisions(False)
time.sleep(0.1)
self.close_hand()
time.sleep(0.1)
rospy.loginfo("Lifting")
for _ in range(5):
self.move_tip(y=0.01)
time.sleep(0.1)
self.check_fingers_collisions(True)
def swap_object(self, new_model_name):
"""
Replaces the current object with a new one.Replaces
@new_model_name the name of the folder in which the object is (e.g. beer)
"""
try:
self.__delete_model(self.__current_model_name)
except:
rospy.logwarn("Failed to delete: " + self.__current_model_name)
try:
sdf = None
initial_pose = Pose()
initial_pose.position.x = 0.15
initial_pose.position.z = 0.82
with open(self.__path_to_models + new_model_name + "/model.sdf", "r") as model:
sdf = model.read()
res = self.__spawn_model(new_model_name, sdf, "", initial_pose, "world")
rospy.logerr( "RES: " + str(res) )
self.__current_model_name = new_model_name
except:
rospy.logwarn("Failed to delete: " + self.__current_model_name)
def __compute_arm_target_for_ball(self):
ball_pose = self.get_object_pose()
# come at it from the top
arm_target = ball_pose
arm_target.position.z += 0.5
quaternion = quaternion_from_euler(-pi/2., 0.0, 0.0)
arm_target.orientation.x = quaternion[0]
arm_target.orientation.y = quaternion[1]
arm_target.orientation.z = quaternion[2]
arm_target.orientation.w = quaternion[3]
return arm_target
def __pre_grasp(self, arm_target):
self.hand_commander.set_named_target("open")
plan = self.hand_commander.plan()
self.hand_commander.execute(plan, wait=True)
for _ in range(10):
self.arm_commander.set_start_state_to_current_state()
self.arm_commander.set_pose_targets([arm_target])
plan = self.arm_commander.plan()
if self.arm_commander.execute(plan):
return True
def __grasp(self, arm_target):
waypoints = []
waypoints.append(self.arm_commander.get_current_pose(self.arm_commander.get_end_effector_link()).pose)
arm_above_ball = deepcopy(arm_target)
arm_above_ball.position.z -= 0.12
waypoints.append(arm_above_ball)
self.arm_commander.set_start_state_to_current_state()
(plan, fraction) = self.arm_commander.compute_cartesian_path(waypoints, 0.01, 0.0)
print fraction
if not self.arm_commander.execute(plan):
return False
self.hand_commander.set_named_target("close")
plan = self.hand_commander.plan()
if not self.hand_commander.execute(plan, wait=True):
return False
self.hand_commander.attach_object("cricket_ball__link")
def __lift(self, arm_target):
waypoints = []
waypoints.append(self.arm_commander.get_current_pose(self.arm_commander.get_end_effector_link()).pose)
arm_above_ball = deepcopy(arm_target)
arm_above_ball.position.z += 0.1
waypoints.append(arm_above_ball)
self.arm_commander.set_start_state_to_current_state()
(plan, fraction) = self.arm_commander.compute_cartesian_path(waypoints, 0.01, 0.0)
print fraction
if not self.arm_commander.execute(plan):
return False
def __start_ctrl(self):
rospy.loginfo("STARTING CONTROLLERS")
self.__switch_ctrl.call(start_controllers=["hand_controller", "arm_controller", "joint_state_controller"],
stop_controllers=[], strictness=1)
def __joint_state_cb(self, msg):
self.__last_joint_state = msg
scene.add_mesh("pen",p,resourcepath+'objects/pen.dae')
rospy.sleep(1)
# print the existing groups
robot = RobotCommander()
print "Available groups: ",robot.get_group_names()
# setup the arm group and its planner
arm = MoveGroupCommander("arm")
arm.set_start_state_to_current_state()
arm.set_planner_id("RRTstarkConfigDefault")
arm.set_planning_time(5.0)
arm.detach_object("pen")
# set the arm to a safe target
arm.set_named_target("gamma")
# plan and execute the motion
arm.go()
# setup the hand group and its planner
hand = MoveGroupCommander("hand")
hand.set_start_state_to_current_state()
hand.set_planner_id("LBKPIECEkConfigDefault")
hand.set_planning_time(10.0)
# set the hand to a safe target
hand.set_named_target("open")
# plan and execute the motion
hand.go()
# load grasps
class ArmTracker:
def __init__(self):
rospy.init_node('arm_tracker')
rospy.on_shutdown(self.shutdown)
# Maximum distance of the target before the arm will lower
self.max_target_dist = 1.2
# Arm length to center of gripper frame
self.arm_length = 0.4
# Distance between the last target and the new target before we move the arm
self.last_target_threshold = 0.01
# Distance between target and end-effector before we move the arm
self.target_ee_threshold = 0.025
# Initialize the move group for the right arm
self.right_arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the right gripper
right_gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Set the reference frame for pose targets
self.reference_frame = REFERENCE_FRAME
# Keep track of the last target pose
self.last_target_pose = PoseStamped()
# Set the right arm reference frame accordingly
self.right_arm.set_pose_reference_frame(self.reference_frame)
# Allow replanning to increase the chances of a solution
self.right_arm.allow_replanning(False)
# Set a position tolerance in meters
self.right_arm.set_goal_position_tolerance(0.05)
# Set an orientation tolerance in radians
self.right_arm.set_goal_orientation_tolerance(0.2)
# What is the end effector link?
self.ee_link = self.right_arm.get_end_effector_link()
# Create the transform listener
self.listener = tf.TransformListener()
# Queue up some tf data...
rospy.sleep(3)
# Set the gripper target to closed position using a joint value target
right_gripper.set_joint_value_target(GRIPPER_CLOSED)
# Plan and execute the gripper motion
right_gripper.go()
rospy.sleep(1)
# Subscribe to the target topic
rospy.wait_for_message('/target_pose', PoseStamped)
# Use queue_size=1 so we don't pile up outdated target messages
self.target_subscriber = rospy.Subscriber('/target_pose', PoseStamped, self.update_target_pose, queue_size=1)
rospy.loginfo("Ready for action!")
while not rospy.is_shutdown():
try:
target = self.target
except:
rospy.sleep(0.5)
continue
# Timestamp the target with the current time
target.header.stamp = rospy.Time()
# Get the target pose in the right_arm shoulder lift frame
#target_arm = self.listener.transformPose('right_arm_shoulder_pan_link', target)
target_arm = self.listener.transformPose('right_arm_base_link', target)
# Convert the position values to a Python list
p0 = [target_arm.pose.position.x, target_arm.pose.position.y, target_arm.pose.position.z]
# Compute the distance between the target and the shoulder link
dist_target_shoulder = euclidean(p0, [0, 0, 0])
# If the target is too far away, then lower the arm
if dist_target_shoulder > self.max_target_dist:
rospy.loginfo("Target is too far away")
self.right_arm.set_named_target('resting')
self.right_arm.go()
rospy.sleep(1)
continue
# Transform the pose to the base reference frame
target_base = self.listener.transformPose(self.reference_frame, target)
# Compute the distance between the current target and the last target
p1 = [target_base.pose.position.x, target_base.pose.position.y, target_base.pose.position.z]
p2 = [self.last_target_pose.pose.position.x, self.last_target_pose.pose.position.y, self.last_target_pose.pose.position.z]
dist_last_target = euclidean(p1, p2)
# Move the arm only if we are far enough away from the previous target
if dist_last_target < self.last_target_threshold:
rospy.loginfo("Still close to last target")
rospy.sleep(0.5)
continue
# Get the pose of the end effector in the base reference frame
ee_pose = self.right_arm.get_current_pose(self.ee_link)
# Convert the position values to a Python list
p3 = [ee_pose.pose.position.x, ee_pose.pose.position.y, ee_pose.pose.position.z]
# Compute the distance between the target and the end-effector
dist_target = euclidean(p1, p3)
# Only move the arm if we are far enough away from the target
if dist_target < self.target_ee_threshold:
rospy.loginfo("Already close enough to target")
rospy.sleep(1)
continue
# We want the gripper somewhere on the line connecting the shoulder and the target.
# Using a parametric form of the line, the parameter ranges from 0 to the
# minimum of the arm length and the distance to the target.
t_max = min(self.arm_length, dist_target_shoulder)
# Bring it back 10% so we don't collide with the target
t = 0.9 * t_max
# Now compute the target positions from the parameter
try:
target_arm.pose.position.x *= (t / dist_target_shoulder)
target_arm.pose.position.y *= (t / dist_target_shoulder)
target_arm.pose.position.z *= (t / dist_target_shoulder)
except:
rospy.sleep(1)
rospy.loginfo("Exception!")
continue
# Transform to the base_footprint frame
target_ee = self.listener.transformPose(self.reference_frame, target_arm)
# Set the target gripper orientation to be horizontal
target_ee.pose.orientation.x = 0
target_ee.pose.orientation.y = 0
target_ee.pose.orientation.z = 0
target_ee.pose.orientation.w = 1
# Update the current start state
self.right_arm.set_start_state_to_current_state()
# Set the target pose for the end-effector
self.right_arm.set_pose_target(target_ee, self.ee_link)
# Plan and execute the trajectory
success = self.right_arm.go()
if success:
# Store the current target as the last target
self.last_target_pose = target
# Pause a bit between motions to keep from locking up
rospy.sleep(0.5)
def update_target_pose(self, target):
self.target = target
def relax_all_servos(self):
command = 'rosrun donaxi_dynamixels arbotix_relax_all_servos.py'
args = shlex.split(command)
subprocess.Popen(args)
def shutdown(self):
# Stop any further target messages from being processed
self.target_subscriber.unregister()
# Stop any current arm movement
self.right_arm.stop()
# Move to the resting position
self.right_arm.set_named_target('resting')
self.right_arm.go()
# Relax the servos
self.relax_all_servos()
os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_demo')
# Construct the initial scene object
scene = PlanningSceneInterface()
# Create a scene publisher to push changes to the scene
self.scene_pub = rospy.Publisher('planning_scene', PlanningScene)
# Create a dictionary to hold object colors
self.colors = dict()
# Pause for the scene to get ready
rospy.sleep(1)
# Initialize the move group for the right arm
right_arm = MoveGroupCommander('right_arm')
# Initialize the move group for the left arm
left_arm = MoveGroupCommander('left_arm')
right_arm.set_planner_id("KPIECEkConfigDefault");
left_arm.set_planner_id("KPIECEkConfigDefault");
rospy.sleep(1)
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Allow some leeway in position (meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.01)
right_arm.set_goal_orientation_tolerance(0.05)
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Set the reference frame for pose targets
reference_frame = 'base_footprint'
# Set the right arm reference frame accordingly
right_arm.set_pose_reference_frame(reference_frame)
# Allow 5 seconds per planning attempt
right_arm.set_planning_time(5)
# Give each of the scene objects a unique name
table_id = 'table'
box1_id = 'box1'
box2_id = 'box2'
# Remove leftover objects from a previous run
scene.remove_world_object(table_id)
scene.remove_world_object(box1_id)
scene.remove_world_object(box2_id)
# Give the scene a chance to catch up
rospy.sleep(1)
# Start the arm in the "resting" pose stored in the SRDF file
#left_arm.set_named_target('left_start')
#left_arm.go()
# Start the arm in the "resting" pose stored in the SRDF file
right_arm.set_named_target('right_start')
right_arm.go()
rospy.sleep(2)
# Set the height of the table off the ground
table_ground = 0.75
# Set the length, width and height of the table and boxes
table_size = [0.2, 0.7, 0.01]
box1_size = [0.1, 0.05, 0.05]
box2_size = [0.05, 0.05, 0.15]
# Add a table top and two boxes to the scene
table_pose = PoseStamped()
table_pose.header.frame_id = reference_frame
table_pose.pose.position.x = 0.56
table_pose.pose.position.y = 0.0
table_pose.pose.position.z = table_ground + table_size[2] / 2.0
table_pose.pose.orientation.w = 1.0
scene.add_box(table_id, table_pose, table_size)
box1_pose = PoseStamped()
box1_pose.header.frame_id = reference_frame
box1_pose.pose.position.x = 0.51
box1_pose.pose.position.y = -0.1
box1_pose.pose.position.z = table_ground + table_size[2] + box1_size[2] / 2.0
box1_pose.pose.orientation.w = 1.0
scene.add_box(box1_id, box1_pose, box1_size)
box2_pose = PoseStamped()
box2_pose.header.frame_id = reference_frame
box2_pose.pose.position.x = 0.49
box2_pose.pose.position.y = 0.15
box2_pose.pose.position.z = table_ground + table_size[2] + box2_size[2] / 2.0
box2_pose.pose.orientation.w = 1.0
scene.add_box(box2_id, box2_pose, box2_size)
# Make the table red and the boxes orange
self.setColor(table_id, 0.8, 0, 0, 1.0)
self.setColor(box1_id, 0.8, 0.4, 0, 1.0)
self.setColor(box2_id, 0.8, 0.4, 0, 1.0)
# Send the colors to the planning scene
self.sendColors()
# Set the target pose in between the boxes and above the table
target_pose = PoseStamped()
target_pose.header.frame_id = reference_frame
target_pose.pose.position.x = 0.4
target_pose.pose.position.y = 0.0
target_pose.pose.position.z = table_pose.pose.position.z + table_size[2] + 0.05
target_pose.pose.orientation.w = 1.0
# Set the target pose for the arm
right_arm.set_pose_target(target_pose, end_effector_link)
# Move the arm to the target pose (if possible)
right_arm.go()
# Pause for a moment...
rospy.sleep(2)
# Return the arm to the "resting" pose stored in the SRDF file
right_arm.set_named_target('right_start')
right_arm.go()
# Exit MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_demo')
# Use the planning scene object to add or remove objects
scene = PlanningSceneInterface()
# Create a scene publisher to push changes to the scene
self.scene_pub = rospy.Publisher('planning_scene',
PlanningScene,
queue_size=5)
# Create a publisher for displaying gripper poses
self.gripper_pose_pub = rospy.Publisher('gripper_pose',
PoseStamped,
queue_size=5)
# Create a dictionary to hold object colors
self.colors = dict()
# Initialize the move group for the right arm
right_arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the right gripper
right_gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Allow some leeway in position (meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.05)
right_arm.set_goal_orientation_tolerance(0.1)
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Set the right arm reference frame
right_arm.set_pose_reference_frame(REFERENCE_FRAME)
# Allow 5 seconds per planning attempt
right_arm.set_planning_time(60)
# Set a limit on the number of pick attempts before bailing
max_pick_attempts = 5
# Set a limit on the number of place attempts
max_place_attempts = 5
# Give the scene a chance to catch up
rospy.sleep(2)
# Give each of the scene objects a unique name
table_id = 'table'
box1_id = 'box1'
box2_id = 'box2'
target_id = 'target'
tool_id = 'tool'
# Remove leftover objects from a previous run
scene.remove_world_object(table_id)
scene.remove_world_object(box1_id)
scene.remove_world_object(box2_id)
scene.remove_world_object(target_id)
scene.remove_world_object(tool_id)
# Remove any attached objects from a previous session
scene.remove_attached_object(GRIPPER_FRAME, target_id)
# Give the scene a chance to catch up
rospy.sleep(1)
# Start the arm in the "grasp" pose stored in the SRDF file
right_arm.set_named_target('right_arm_up')
right_arm.go()
# Open the gripper to the neutral position
right_gripper.set_joint_value_target(GRIPPER_OPEN)
right_gripper.go()
rospy.sleep(5)
# Set the height of the table off the ground
table_ground = 0.04
# Set the dimensions of the scene objects [l, w, h]
table_size = [0.2, 0.7, 0.01]
box1_size = [0.1, 0.05, 0.05]
box2_size = [0.05, 0.05, 0.15]
# Set the target size [l, w, h]
target_size = [0.02, 0.01, 0.12]
target_x = 0.135
#target_y = -0.32
target_y = -0.285290879999
# Add a table top and two boxes to the scene
table_pose = PoseStamped()
table_pose.header.frame_id = REFERENCE_FRAME
table_pose.pose.position.x = 0.25
table_pose.pose.position.y = 0.0
table_pose.pose.position.z = table_ground + table_size[2] / 2.0
table_pose.pose.orientation.w = 1.0
scene.add_box(table_id, table_pose, table_size)
# Set the target pose in between the boxes and on the table
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = target_x
target_pose.pose.position.y = target_y
target_pose.pose.position.z = table_ground + table_size[
2] + target_size[2] / 2.0
target_pose.pose.orientation.w = 1.0
# Add the target object to the scene
scene.add_box(target_id, target_pose, target_size)
# Make the table blue and the boxes orange
self.setColor(table_id, 0, 0, 0.8, 1.0)
self.setColor(box1_id, 0.8, 0.4, 0, 1.0)
self.setColor(box2_id, 0.8, 0.4, 0, 1.0)
# Make the target yellow
self.setColor(target_id, 0.9, 0.9, 0, 1.0)
# Send the colors to the planning scene
self.sendColors()
# Set the support surface name to the table object
right_arm.set_support_surface_name(table_id)
# Specify a pose to place the target after being picked up
place_pose = PoseStamped()
place_pose.header.frame_id = REFERENCE_FRAME
place_pose.pose.position.x = 0.18
place_pose.pose.position.y = 0
place_pose.pose.position.z = table_ground + table_size[
2] + target_size[2] / 2.0
place_pose.pose.orientation.w = 1.0
p = PoseStamped()
p.header.frame_id = "up1_footprint"
p.pose.position.x = 0.12792118579
p.pose.position.y = -0.285290879999
p.pose.position.z = 0.120301181892
p.pose.orientation.x = 0.0
p.pose.orientation.y = 0.0
p.pose.orientation.z = -0.706825181105
p.pose.orientation.w = 0.707388269167
right_gripper.set_pose_target(p.pose)
# pick an object
right_arm.allow_replanning(True)
right_arm.allow_looking(True)
right_arm.set_goal_tolerance(0.05)
right_arm.set_planning_time(60)
print "arm grasp"
success = 0
attempt = 0
while not success:
p_plan = right_arm.plan()
attempt = attempt + 1
print "Planning attempt: " + str(attempt)
if p_plan.joint_trajectory.points != []:
success = 1
print "arm grasp"
right_arm.execute(p_plan)
rospy.sleep(5)
right_gripper.set_joint_value_target(GRIPPER_GRASP)
right_gripper.go()
print "gripper closed"
rospy.sleep(5)
scene.attach_box(GRIPPER_FRAME, target_id)
print "object attached"
right_arm.set_named_target('right_arm_up')
right_arm.go()
print "arm up"
rospy.sleep(1)
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
# Initialize the ROS node
rospy.init_node('moveit_demo', anonymous=True)
cartesian = rospy.get_param('~cartesian', True)
# Connect to the right_arm move group
right_arm = MoveGroupCommander('right_arm')
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Set the right arm reference frame
right_arm.set_pose_reference_frame('base_footprint')
# Allow some leeway in position(meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.01)
right_arm.set_goal_orientation_tolerance(0.1)
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Start in the "straight_forward" configuration stored in the SRDF file
right_arm.set_named_target('straight_forward')
# Plan and execute a trajectory to the goal configuration
right_arm.go()
# Get the current pose so we can add it as a waypoint
start_pose = right_arm.get_current_pose(end_effector_link).pose
# Initialize the waypoints list
waypoints = []
# Set the first waypoint to be the starting pose
if cartesian:
# Append the pose to the waypoints list
waypoints.append(start_pose)
wpose = deepcopy(start_pose)
# Set the next waypoint back 0.2 meters and right 0.2 meters
wpose.position.x -= 0.2
wpose.position.y -= 0.2
if cartesian:
# Append the pose to the waypoints list
waypoints.append(deepcopy(wpose))
else:
right_arm.set_pose_target(wpose)
right_arm.go()
rospy.sleep(1)
# Set the next waypoint to the right 0.15 meters
wpose.position.x += 0.05
wpose.position.y += 0.15
wpose.position.z -= 0.15
if cartesian:
# Append the pose to the waypoints list
waypoints.append(deepcopy(wpose))
else:
right_arm.set_pose_target(wpose)
right_arm.go()
rospy.sleep(1)
if cartesian:
# Append the pose to the waypoints list
waypoints.append(deepcopy(start_pose))
else:
right_arm.set_pose_target(start_pose)
right_arm.go()
rospy.sleep(1)
if cartesian:
fraction = 0.0
maxtries = 100
attempts = 0
# Set the internal state to the current state
right_arm.set_start_state_to_current_state()
# Plan the Cartesian path connecting the waypoints
while fraction < 1.0 and attempts < maxtries:
(plan, fraction) = right_arm.compute_cartesian_path (
waypoints, # waypoint poses
0.01, # eef_step
0.0, # jump_threshold
True) # avoid_collisions
# Increment the number of attempts
attempts += 1
# Print out a progress message
if attempts % 10 == 0:
rospy.loginfo("Still trying after " + str(attempts) + " attempts...")
# If we have a complete plan, execute the trajectory
if fraction == 1.0:
rospy.loginfo("Path computed successfully. Moving the arm.")
right_arm.execute(plan)
rospy.loginfo("Path execution complete.")
else:
rospy.loginfo("Path planning failed with only " + str(fraction) + " success after " + str(maxtries) + " attempts.")
# Move normally back to the 'resting' position
right_arm.set_named_target('resting')
right_arm.go()
rospy.sleep(1)
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit MoveIt
moveit_commander.os._exit(0)
class DaArmServer:
"""The basic, design problem/tui agnostic arm server
"""
gestures = {}
pointing_height = 0.06
grasp_height = 0.05
drop_height = 0.07
cruising_height = 0.1
START_TOLERANCE = 0.05 # this is for moveit to check for change in joint angles before moving
GOAL_TOLERANCE = 0.005
moving = False
paused = False
move_group_state = "IDLE"
last_joint_trajectory_goal = ""
last_joint_trajectory_result = ""
def __init__(self, num_planning_attempts=100, safe_zone=None):
rospy.init_node("daarm_server", anonymous=True)
self.safe_zone = safe_zone # this is a fallback zone to drop a block on fail if nothing is passed: [{x,y},{xT,yT}]
self.init_params()
self.init_scene()
self.init_publishers()
self.init_subscribers()
self.init_action_clients()
self.init_service_clients()
self.init_arm(num_planning_attempts)
def init_arm(self, num_planning_attempts=700):
rospy.set_param(
"/move_group/trajectory_execution/allowed_start_tolerance",
self.START_TOLERANCE)
self.arm = MoveGroupCommander("arm")
self.gripper = MoveGroupCommander("gripper")
self.robot = RobotCommander()
self.arm.set_num_planning_attempts(num_planning_attempts)
self.arm.set_goal_position_tolerance(self.GOAL_TOLERANCE)
self.arm.set_goal_orientation_tolerance(0.02)
self.init_services()
self.init_action_servers()
def init_scene(self):
world_objects = [
"table", "tui", "monitor", "overHead", "wall", "farWall",
"frontWall", "backWall", "blockProtector", "rearCamera"
]
self.robot = RobotCommander()
self.scene = PlanningSceneInterface()
for obj in world_objects:
self.scene.remove_world_object(obj)
rospy.sleep(0.5)
self.tuiPose = PoseStamped()
self.tuiPose.header.frame_id = self.robot.get_planning_frame()
self.tuiPose.pose.position = Point(0.0056, -0.343, -0.51)
self.tuiDimension = (0.9906, 0.8382, 0.8836)
self.overHeadPose = PoseStamped()
self.overHeadPose.header.frame_id = self.robot.get_planning_frame()
self.overHeadPose.pose.position = Point(0.0056, 0.0, 0.97)
self.overHeadDimension = (0.9906, 0.8382, 0.05)
self.blockProtectorPose = PoseStamped()
self.blockProtectorPose.header.frame_id = self.robot.get_planning_frame(
)
self.blockProtectorPose.pose.position = Point(
0.0056, -0.343, -0.51 + self.cruising_height)
self.blockProtectorDimension = (0.9906, 0.8382, 0.8636)
self.wallPose = PoseStamped()
self.wallPose.header.frame_id = self.robot.get_planning_frame()
self.wallPose.pose.position = Point(-0.858, -0.343, -0.3048)
self.wallDimension = (0.6096, 2, 1.35)
self.farWallPose = PoseStamped()
self.farWallPose.header.frame_id = self.robot.get_planning_frame()
self.farWallPose.pose.position = Point(0.9, -0.343, -0.3048)
self.farWallDimension = (0.6096, 2, 3.35)
self.frontWallPose = PoseStamped()
self.frontWallPose.header.frame_id = self.robot.get_planning_frame()
self.frontWallPose.pose.position = Point(0.0056, -0.85, -0.51)
self.frontWallDimension = (1, 0.15, 4)
self.backWallPose = PoseStamped()
self.backWallPose.header.frame_id = self.robot.get_planning_frame()
self.backWallPose.pose.position = Point(0.0056, 0.55, -0.51)
self.backWallDimension = (1, 0.005, 4)
self.rearCameraPose = PoseStamped()
self.rearCameraPose.header.frame_id = self.robot.get_planning_frame()
self.rearCameraPose.pose.position = Point(0.65, 0.45, -0.51)
self.rearCameraDimension = (0.5, 0.5, 2)
rospy.sleep(0.5)
self.scene.add_box("tui", self.tuiPose, self.tuiDimension)
self.scene.add_box("wall", self.wallPose, self.wallDimension)
self.scene.add_box("farWall", self.farWallPose, self.farWallDimension)
self.scene.add_box("overHead", self.overHeadPose,
self.overHeadDimension)
self.scene.add_box("backWall", self.backWallPose,
self.backWallDimension)
self.scene.add_box("frontWall", self.frontWallPose,
self.frontWallDimension)
self.scene.add_box("rearCamera", self.rearCameraPose,
self.rearCameraDimension)
def raise_table(self):
#raises the table obstacle to protect blocks on the table during transport
self.scene.remove_world_object("blockProtector")
self.scene.add_box("blockProtector", self.blockProtectorPose,
self.blockProtectorDimension)
def lower_table(self):
#lowers the table to allow grasping into it
self.scene.remove_world_object("blockProtector")
def init_params(self):
try:
self.grasp_height = get_ros_param(
"GRASP_HEIGHT", "Grasp height defaulting to 0.01")
self.drop_height = get_ros_param("DROP_HEIGHT",
"Drop height defaulting to 0.07")
self.cruising_height = get_ros_param(
"CRUISING_HEIGHT", "Cruising height defaulting to 0.1")
self.pointing_height = get_ros_param(
"POINT_HEIGHT", "Pointing height defaulting to 0.06")
except ValueError as e:
rospy.loginfo(e)
def handle_param_update(self, message):
self.init_params()
def init_publishers(self):
self.calibration_publisher = rospy.Publisher("/calibration_results",
CalibrationParams,
queue_size=1)
self.action_belief_publisher = rospy.Publisher("/arm_action_beliefs",
String,
queue_size=1)
rospy.sleep(0.5)
def init_subscribers(self):
self.joint_angle_subscriber = rospy.Subscriber(
'/j2s7s300_driver/out/joint_angles', JointAngles,
self.update_joints)
self.joint_trajectory_subscriber = rospy.Subscriber(
'/j2s7s300/follow_joint_trajectory/status', GoalStatusArray,
self.update_joint_trajectory_state)
self.joint_trajectory_goal_subscriber = rospy.Subscriber(
'/j2s7s300/follow_joint_trajectory/goal',
FollowJointTrajectoryActionGoal, self.update_joint_trajectory_goal)
self.joint_trajectory_result_subscriber = rospy.Subscriber(
'/j2s7s300/follow_joint_trajectory/result',
FollowJointTrajectoryActionResult,
self.update_joint_trajectory_result)
self.finger_position_subscriber = rospy.Subscriber(
'/j2s7s300_driver/out/finger_position', FingerPosition,
self.update_finger_position)
self.param_update_subscriber = rospy.Subscriber(
"/param_update", String, self.handle_param_update)
self.moveit_status_subscriber = rospy.Subscriber(
'/move_group/status', GoalStatusArray,
self.update_move_group_status)
self.move_it_feedback_subscriber = rospy.Subscriber(
'/move_group/feedback', MoveGroupActionFeedback,
self.update_move_group_state)
#Topic for getting joint torques
rospy.Subscriber('/j2s7s300_driver/out/joint_torques', JointAngles,
self.monitorJointTorques)
#Topic for getting cartesian force on end effector
rospy.Subscriber('/j2s7s300_driver/out/tool_wrench',
geometry_msgs.msg.WrenchStamped,
self.monitorToolWrench)
def init_action_servers(self):
self.calibration_server = actionlib.SimpleActionServer(
"calibrate_arm", CalibrateAction, self.calibrate, auto_start=False)
self.calibration_server.start()
self.move_block_server = actionlib.SimpleActionServer(
"move_block",
MoveBlockAction,
self.handle_move_block,
auto_start=False)
self.move_block_server.start()
#self.home_arm_server = actionlib.SimpleActionServer("home_arm", HomeArmAction, self.home_arm)
self.move_pose_server = actionlib.SimpleActionServer(
"move_pose",
MovePoseAction,
self.handle_move_pose,
auto_start=False)
self.move_pose_server.start()
def init_services(self):
self.home_arm_service = rospy.Service("/home_arm", ArmCommand,
self.handle_home_arm)
# emergency stop
self.stop_arm_service = rospy.Service("/stop_arm", ArmCommand,
self.handle_stop_arm)
# stop and pause for a bit
self.pause_arm_service = rospy.Service("/pause_arm", ArmCommand,
self.handle_pause_arm)
self.start_arm_service = rospy.Service("/restart_arm", ArmCommand,
self.handle_restart_arm)
def init_action_clients(self):
# Action Client for joint control
joint_action_address = '/j2s7s300_driver/joints_action/joint_angles'
self.joint_action_client = actionlib.SimpleActionClient(
joint_action_address, kinova_msgs.msg.ArmJointAnglesAction)
rospy.loginfo('Waiting for ArmJointAnglesAction server...')
self.joint_action_client.wait_for_server()
rospy.loginfo('ArmJointAnglesAction Server Connected')
# Service to move the gripper fingers
finger_action_address = '/j2s7s300_driver/fingers_action/finger_positions'
self.finger_action_client = actionlib.SimpleActionClient(
finger_action_address, kinova_msgs.msg.SetFingersPositionAction)
self.finger_action_client.wait_for_server()
#
def init_service_clients(self):
self.is_simulation = False
try:
self.is_simulation = get_ros_param("IS_SIMULATION", "")
except:
self.is_simulation = False
if self.is_simulation is True:
# setup alternatives to jaco services for emergency stop, joint control, and finger control
pass
# Service to get TUI State
rospy.wait_for_service('get_tui_blocks')
self.get_block_state = rospy.ServiceProxy('get_tui_blocks', TuiState)
# Service for homing the arm
home_arm_service = '/j2s7s300_driver/in/home_arm'
self.home_arm_client = rospy.ServiceProxy(home_arm_service, HomeArm)
rospy.loginfo('Waiting for kinova home arm service')
rospy.wait_for_service(home_arm_service)
rospy.loginfo('Kinova home arm service server connected')
# Service for emergency stop
emergency_service = '/j2s7s300_driver/in/stop'
self.emergency_stop = rospy.ServiceProxy(emergency_service, Stop)
rospy.loginfo('Waiting for Stop service')
rospy.wait_for_service(emergency_service)
rospy.loginfo('Stop service server connected')
# Service for restarting the arm
start_service = '/j2s7s300_driver/in/start'
self.restart_arm = rospy.ServiceProxy(start_service, Start)
rospy.loginfo('Waiting for Start service')
rospy.wait_for_service(start_service)
rospy.loginfo('Start service server connected')
def handle_start_arm(self, message):
return self.restart_arm()
def handle_stop_arm(self, message):
return self.stop_motion()
def handle_pause_arm(self, message):
self.stop_motion(home=True, pause=True)
return str(self.paused)
def handle_restart_arm(self, message):
self.restart_arm()
self.paused = False
return str(self.paused)
def handle_home_arm(self, message):
try:
status = self.home_arm()
return json.dumps(status)
except rospy.ServiceException as e:
rospy.loginfo("Homing arm failed")
def home_arm(self):
# send the arm home
# for now, let's just use the kinova home
#self.home_arm_client()
self.home_arm_kinova()
return "done"
def custom_home_arm(self):
angles_set = [
629.776062012, 150.076568694, -0.13603515923, 29.8505859375,
0.172727271914, 212.423721313, 539.743164062
]
goal = kinova_msgs.msg.ArmJointAnglesGoal()
goal.angles.joint1 = angles_set[0]
goal.angles.joint2 = angles_set[1]
goal.angles.joint3 = angles_set[2]
goal.angles.joint4 = angles_set[3]
goal.angles.joint5 = angles_set[4]
goal.angles.joint6 = angles_set[5]
goal.angles.joint7 = angles_set[6]
self.joint_action_client.send_goal(goal)
def home_arm_kinova(self):
"""Takes the arm to the kinova default home if possible
"""
# self.arm.set_named_target("Home")
angles_set = map(np.deg2rad, [
629.776062012, 150.076568694, -0.13603515923, 29.8505859375,
0.172727271914, 212.423721313, 269.743164062
])
self.arm.clear_pose_targets()
try:
self.arm.set_joint_value_target(angles_set)
except MoveItCommanderException as e:
pass #stupid bug in movegroupcommander wrapper throws an exception when trying to set joint angles
try:
self.arm.go()
return "successful home"
except:
return "failed to home"
# This callback function monitors the Joint Torques and stops the current execution if the Joint Torques exceed certain value
def monitorJointTorques(self, torques):
if abs(torques.joint1) > 1:
return
#self.emergency_stop() #Stop arm driver
#rospy.sleep(1.0)
#self.group.stop() #Stop moveit execution
# This callback function monitors the Joint Wrench and stops the current
# execution if the Joint Wrench exceeds certain value
def monitorToolWrench(self, wrenchStamped):
return
#toolwrench = abs(wrenchStamped.wrench.force.x**2 + wrenchStamped.wrench.force.y**2 + wrenchStamped.wrench.force.z**2)
##print toolwrench
#if toolwrench > 100:
# self.emergency_stop() # Stop arm driver
def move_fingers(self, finger1_pct, finger2_pct, finger3_pct):
finger_max_turn = 6800
goal = kinova_msgs.msg.SetFingersPositionGoal()
goal.fingers.finger1 = float((finger1_pct / 100.0) * finger_max_turn)
goal.fingers.finger2 = float((finger2_pct / 100.0) * finger_max_turn)
goal.fingers.finger3 = float((finger3_pct / 100.0) * finger_max_turn)
self.finger_action_client.send_goal(goal)
if self.finger_action_client.wait_for_result(rospy.Duration(5.0)):
return self.finger_action_client.get_result()
else:
self.finger_action_client.cancel_all_goals()
rospy.loginfo('the gripper action timed-out')
return None
def move_joint_angles(self, angle_set):
goal = kinova_msgs.msg.ArmJointAnglesGoal()
goal.angles.joint1 = angle_set[0]
goal.angles.joint2 = angle_set[1]
goal.angles.joint3 = angle_set[2]
goal.angles.joint4 = angle_set[3]
goal.angles.joint5 = angle_set[4]
goal.angles.joint6 = angle_set[5]
goal.angles.joint7 = angle_set[6]
self.joint_action_client.send_goal(goal)
if self.joint_action_client.wait_for_result(rospy.Duration(20.0)):
return self.joint_action_client.get_result()
else:
print(' the joint angle action timed-out')
self.joint_action_client.cancel_all_goals()
return None
def handle_move_block(self, message):
"""msg format: {id: int,
source: Point {x: float,y: float},
target: Point {x: float, y: float}
"""
print(message)
pick_x = message.source.x
pick_y = message.source.y
pick_x_threshold = message.source_x_tolerance
pick_y_threshold = message.source_y_tolerance
block_id = message.id
place_x = message.target.x
place_y = message.target.y
place_x_threshold = message.target_x_tolerance
place_y_threshold = message.target_y_tolerance
self.move_block(block_id, pick_x, pick_y, pick_x_threshold,
pick_y_threshold, place_x, place_y, place_x_threshold,
place_y_threshold, message.block_size)
def handle_pick_failure(self, exception):
rospy.loginfo("Pick failed, going home.")
self.open_gripper()
self.home_arm()
raise exception
def handle_place_failure(self, safe_zone, block_size, exception):
#should probably figure out if I'm holding the block first so it doesn't look weird
#figure out how to drop the block somewhere safe
#pass none and none if you are certain you haven't picked up a block yet
if safe_zone is None and block_size is None:
self.home_arm()
raise exception
rospy.loginfo("HANDLING PLACE FAILURE")
block_response = json.loads(self.get_block_state('tuio').tui_state)
current_block_state = block_response
drop_location = self.calculate_drop_location(
safe_zone[0]['x'],
safe_zone[0]['y'],
safe_zone[1]['x_tolerance'],
safe_zone[1]['y_tolerance'],
current_block_state,
block_size,
num_attempts=1000)
try:
arm_drop_location = tuio_to_arm(drop_location.x, drop_location.y,
get_tuio_bounds(),
get_arm_bounds())
rospy.loginfo("panic arm drop: " + str(arm_drop_location))
self.place_block(
Point(arm_drop_location[0], arm_drop_location[1], 0))
except Exception as e:
rospy.loginfo(
"ERROR: Cannot panic place the block! Get ready to catch it!")
self.open_gripper()
self.home_arm()
raise exception
def get_candidate_blocks(self, block_id, pick_x, pick_y, pick_x_tolerance,
pick_y_tolerance):
block_response = json.loads(self.get_block_state('tuio').tui_state)
current_block_state = block_response
candidate_blocks = []
print("looking for ", block_id, " ", pick_x, pick_y, pick_x_tolerance,
pick_y_tolerance)
# get candidate blocks -- blocks with the same id and within the error bounds/threshold given
print(current_block_state)
for block in current_block_state:
print(
block,
self.check_block_bounds(block['x'], block['y'], pick_x, pick_y,
pick_x_tolerance, pick_y_tolerance))
if block['id'] == block_id and self.check_block_bounds(
block['x'], block['y'], pick_x, pick_y, pick_x_tolerance,
pick_y_tolerance):
candidate_blocks.append(block)
return candidate_blocks
def move_block(self,
block_id,
pick_x,
pick_y,
pick_x_tolerance,
pick_y_tolerance,
place_x,
place_y,
place_x_tolerance,
place_y_tolerance,
block_size=None,
safe_zone=None,
pick_tries=2,
place_tries=1,
point_at_block=True):
if block_size is None:
block_size = get_ros_param('DEFAULT_BLOCK_SIZE')
block_response = json.loads(self.get_block_state('tuio').tui_state)
current_block_state = block_response
candidate_blocks = []
print("looking for ", block_id, " ", pick_x, pick_y, pick_x_tolerance,
pick_y_tolerance)
# get candidate blocks -- blocks with the same id and within the error bounds/threshold given
print(current_block_state)
# check for a drop location before trying to pick, do this before checking source to prevent cases where we go for a block user
# moved while we are checking for a drop location
drop_location = self.calculate_drop_location(place_x,
place_y,
place_x_tolerance,
place_y_tolerance,
current_block_state,
block_size,
num_attempts=2000)
if drop_location == None:
self.handle_place_failure(
None, None,
Exception("no room in the target zone to drop the block"))
# here we are actually building a set of candidate blocks to pick
for block in current_block_state:
print(
block,
self.check_block_bounds(block['x'], block['y'], pick_x, pick_y,
pick_x_tolerance, pick_y_tolerance))
if block['id'] == block_id and self.check_block_bounds(
block['x'], block['y'], pick_x, pick_y, pick_x_tolerance,
pick_y_tolerance):
candidate_blocks.append(block)
# select best block to pick and pick up
pick_location = None
if len(candidate_blocks) < 1:
raise Exception("no block of id " + str(block_id) +
" found within the source zone")
elif len(candidate_blocks) == 1:
pick_location = Point(candidate_blocks[0]['x'],
candidate_blocks[0]['y'], 0)
else:
pick_location = Point(*self.find_most_isolated_block(
candidate_blocks, current_block_state))
if point_at_block == True:
try:
arm_pick_location = tuio_to_arm(pick_location.x,
pick_location.y,
get_tuio_bounds(),
get_arm_bounds())
arm_drop_location = tuio_to_arm(drop_location.x,
drop_location.y,
get_tuio_bounds(),
get_arm_bounds())
self.close_gripper()
self.point_at_block(location=Point(arm_pick_location[0],
arm_pick_location[1], 0))
self.point_at_block(location=Point(arm_drop_location[0],
arm_drop_location[1], 0))
self.home_arm()
except Exception as e:
rospy.loginfo(str(e))
rospy.loginfo("failed trying to point at block. giving up.")
self.home_arm()
self.move_block_server.set_succeeded(
MoveBlockResult(drop_location))
return
for i in range(pick_tries):
try:
arm_pick_location = tuio_to_arm(pick_location.x,
pick_location.y,
get_tuio_bounds(),
get_arm_bounds())
self.pick_block(location=Point(arm_pick_location[0],
arm_pick_location[1], 0),
check_grasp=True)
break
except Exception as e:
if i < pick_tries - 1:
rospy.loginfo("pick failed and trying again..." + str(e))
else:
rospy.loginfo("pick failed and out of attempts..." +
str(e))
self.handle_pick_failure(e)
if safe_zone == None:
if self.safe_zone == None:
safe_zone = [{
'x': pick_x,
'y': pick_y
}, {
'x_tolerance': pick_x_tolerance,
'y_tolerance': pick_y_tolerance
}]
else:
safe_zone = self.safe_zone
# calculate drop location
block_response = json.loads(self.get_block_state('tuio').tui_state)
current_block_state = block_response
drop_location = self.calculate_drop_location(place_x,
place_y,
place_x_tolerance,
place_y_tolerance,
current_block_state,
block_size,
num_attempts=2000)
if drop_location == None:
self.handle_place_failure(
safe_zone, block_size,
Exception("no room in the target zone to drop the block"))
rospy.loginfo("tuio drop" + str(drop_location))
for i in range(place_tries):
try:
arm_drop_location = tuio_to_arm(drop_location.x,
drop_location.y,
get_tuio_bounds(),
get_arm_bounds())
rospy.loginfo("arm drop: " + str(arm_drop_location))
self.place_block(
Point(arm_drop_location[0], arm_drop_location[1], 0))
break
except Exception as e:
if i < place_tries - 1:
rospy.loginfo("place failed and trying again..." + str(e))
else:
rospy.loginfo("place failed and out of attempts..." +
str(e))
# check to see if we've defined a safe zone to drop the blocks
self.handle_place_failure(safe_zone, block_size, e)
# assume success if we made it this far
self.move_block_server.set_succeeded(MoveBlockResult(drop_location))
# check if a certain x, y position is within the bounds of another x,y position
@staticmethod
def check_block_bounds(x, y, x_origin, y_origin, x_threshold, y_threshold):
if x <= x_origin + x_threshold and x >= x_origin - x_threshold \
and y <= y_origin + y_threshold and y >= y_origin - y_threshold:
return True
return False
# calculate the best location to drop the block
def calculate_drop_location(self,
x,
y,
x_threshold,
y_threshold,
blocks,
block_size,
num_attempts=1000):
attempt = 0
x_original, y_original = x, y
while (attempt < num_attempts):
valid = True
for block in blocks:
if self.check_block_bounds(block['x'], block['y'], x, y,
0.8 * block_size, block_size):
valid = False
break
if valid:
return Point(x, y, 0)
else:
x = random.uniform(x_original - x_threshold,
x_original + x_threshold)
y = random.uniform(y_original - y_threshold,
y_original + y_threshold)
attempt += 1
#if none found in num_attempts, return none
return None
# candidates should have more than one element in it
@staticmethod
def find_most_isolated_block(candidates, all_blocks):
print(candidates)
min_distances = [] # tuples of candidate, distance to closest block
for candidate in candidates:
min_dist = -1
for block in all_blocks:
if block['x'] == candidate['x'] and block['y'] == candidate[
'y']:
continue
else:
dist = DaArmServer.block_dist(candidate, block)
if min_dist == -1 or dist < min_dist:
min_dist = dist
min_distances.append([candidate, min_dist])
most_isolated, _ = max(min_distances, key=lambda x: x[
1]) # get most isolated candidate, and min_distance
return most_isolated['x'], most_isolated['y'], 0
@staticmethod
def block_dist(block_1, block_2):
return np.sqrt((block_2['x'] - block_1['x'])**2 +
(block_2['y'] - block_1['y'])**2)
def update_finger_position(self, message):
self.finger_positions = [
message.finger1, message.finger2, message.finger3
]
def check_grasp(self):
closed_pos = 0.95 * 6800
distance_from_closed = 0
for fp in self.finger_positions:
distance_from_closed += (closed_pos - fp)**2
if np.sqrt(distance_from_closed
) > 130: #this is just some magic number for now
return True #if the fingers aren't fully closed, then grasp is good
else:
return False
def open_gripper(self, delay=0):
"""open the gripper ALL THE WAY, then delay
"""
if self.is_simulation is True:
self.gripper.set_named_target("Open")
self.gripper.go()
else:
try:
rospy.loginfo("Opening Gripper!!")
self.move_fingers(50, 50, 50)
except Exception as e:
rospy.loginfo("Caught it!!" + str(e))
rospy.sleep(delay)
def close_gripper(self, delay=0):
"""close the gripper ALL THE WAY, then delay
"""
# self.gripper.set_named_target("Close")
# self.gripper.go()
try:
rospy.loginfo("Closing Gripper!!")
self.move_fingers(95, 95, 95)
except Exception as e:
rospy.loginfo("Caught it!!" + str(e))
rospy.sleep(delay)
def handle_gesture(self, gesture):
# lookup the gesture from a table? or how about a message?
# one possibility, object that contains desired deltas in pos/orientation
# as well as specify the arm or gripper choice
pass
def handle_move_pose(self, message):
# takes a geometry_msgs/Pose message
self.move_arm_to_pose(message.target.position,
message.target.orientation,
action_server=self.move_pose_server)
self.move_pose_server.set_succeeded()
def check_plan_result(self, target_pose, cur_pose):
#we'll do a very lenient check, this is to find failures, not error
#also only checking position, not orientation
rospy.loginfo("checking pose:" + str(target_pose) + str(cur_pose))
if np.abs(target_pose.pose.position.x -
cur_pose.pose.position.x) > self.GOAL_TOLERANCE * 2:
print("x error too far")
return False
if np.abs(target_pose.pose.position.y -
cur_pose.pose.position.y) > self.GOAL_TOLERANCE * 2:
print("y error too far")
return False
if np.abs(target_pose.pose.position.z -
cur_pose.pose.position.z) > self.GOAL_TOLERANCE * 2:
print("z error too far")
return False
print("tolerable error")
return True
# expects cooridinates for position to be in arm space
def move_arm_to_pose(self,
position,
orientation,
delay=0.5,
waypoints=[],
corrections=4,
action_server=None):
for i in range(corrections + 1):
rospy.loginfo("TRY NUMBER " + str(i))
if len(waypoints) > 0 and i < 1:
# this is good for doing gestures
plan, fraction = self.arm.compute_cartesian_path(
waypoints, eef_step=0.01, jump_threshold=0.0)
else:
p = self.arm.get_current_pose()
p.pose.position = position
p.pose.orientation = orientation
rospy.loginfo("PLANNING TO " + str(p))
self.arm.set_pose_target(p)
last_traj_goal = self.last_joint_trajectory_goal
rospy.loginfo("EXECUTING!")
plan = self.arm.go(wait=False)
timeout = 5 / 0.001
while self.last_joint_trajectory_goal == last_traj_goal:
rospy.sleep(0.001)
timeout -= 1
if timeout <= 0:
raise (Exception(
"Timeout waiting for kinova to accept movement goal."
))
rospy.loginfo("KINOVA GOT THE MOVEMENT GOAL")
current_goal = self.last_joint_trajectory_goal
# then loop until a result for it gets published
timeout = 90 / 0.001
while self.last_joint_trajectory_result != current_goal:
rospy.sleep(0.001)
timeout -= 1
if timeout <= 0:
raise (Exception(
"Motion took longer than 90 seconds. aborting..."))
if self.paused is True:
self.arm.stop() # cancel the moveit goals
return
rospy.loginfo("LEAVING THE WHILE LOOP")
# for i in range(corrections):
# rospy.loginfo("Correcting the pose")
# self.move_joint_angles(angle_set)
rospy.sleep(delay)
if (self.check_plan_result(p, self.arm.get_current_pose())):
break #we're there, no need to retry
#rospy.loginfo("OK GOT THROUGH THE PLANNING PHASE")
if False:
# # get the last pose to correct if desired
# ptPos = plan.joint_trajectory.points[-1].positions
# # print "=================================="
# # print "Last point of the current trajectory: "
# angle_set = list()
# for i in range(len(ptPos)):
# tempPos = ptPos[i]*180/np.pi + int(round((self.joint_angles[i] - ptPos[i]*180/np.pi)/(360)))*360
# angle_set.append(tempPos)
if action_server:
pass
#action_server.publish_feedback(CalibrateFeedback("Plan Found"))
last_traj_goal = self.last_joint_trajectory_goal
rospy.loginfo("EXECUTING!")
self.arm.execute(plan, wait=False)
# this is a bit naive, but I'm going to loop until a new trajectory goal gets published
timeout = 5 / 0.001
while self.last_joint_trajectory_goal == last_traj_goal:
rospy.sleep(0.001)
timeout -= 1
if timeout <= 0:
raise (Exception(
"Timeout waiting for kinova to accept movement goal."
))
rospy.loginfo("KINOVA GOT THE MOVEMENT GOAL")
current_goal = self.last_joint_trajectory_goal
# then loop until a result for it gets published
timeout = 15 / 0.001
while self.last_joint_trajectory_result != current_goal:
rospy.sleep(0.001)
timeout -= 1
if timeout <= 0:
raise (Exception(
"Motion took longer than 15 seconds. aborting..."))
if self.paused is True:
self.arm.stop() # cancel the moveit goals
return
rospy.loginfo("LEAVING THE WHILE LOOP")
# for i in range(corrections):
# rospy.loginfo("Correcting the pose")
# self.move_joint_angles(angle_set)
rospy.sleep(delay)
else:
if action_server:
#action_server.publish_feedback(CalibrateFeedback("Planning Failed"))
pass
# Let's have the caller handle sequences instead.
# def handle_move_sequence(self, message):
# # if the move fails, do we cancel the sequence
# cancellable = message.cancellable
# moves = message.moves
# for move in moves:
# try:
# self.handle_move_block(move)
# except Exception:
# if cancellable:
# rospy.loginfo("Part of move failed, cancelling the rest.")
# break
def update_move_group_state(self, message):
rospy.loginfo(message.feedback.state)
self.move_group_state = message.feedback.state
def update_move_group_status(self, message):
if message.status_list:
#rospy.loginfo("MoveGroup Status for "+str(message.status_list[0].goal_id.id)+": "+str(message.status_list[0].status))
self.move_group_status = message.status_list[0].status
def update_joint_trajectory_state(self, message):
# print(message.status_list)
if len(message.status_list) > 0:
self.joint_trajectory_state = message.status_list[0].status
else:
self.joint_trajectory_state = 0
def update_joint_trajectory_goal(self, message):
#print("goalisasis", message.goal_id.id)
self.last_joint_trajectory_goal = message.goal_id.id
def update_joint_trajectory_result(self, message):
#print("resultisasis", message.status.goal_id.id)
self.last_joint_trajectory_result = message.status.goal_id.id
def get_grasp_orientation(self, position):
#return Quaternion(0, 0, 1/np.sqrt(2), 1/np.sqrt(2))
return Quaternion(-0.707388, -0.706825, 0.0005629, 0.0005633)
def update_joints(self, joints):
self.joint_angles = [
joints.joint1, joints.joint2, joints.joint3, joints.joint4,
joints.joint5, joints.joint6, joints.joint7
]
def move_z_relative(self, distance):
p = self.arm.get_current_pose()
p.pose.position.z += distance
self.move_arm_to_pose(p.pose.position, p.pose.orientation, delay=0)
def move_z_absolute(self, height):
p = self.arm.get_current_pose()
p.pose.position.z = height
self.move_arm_to_pose(p.pose.position, p.pose.orientation, delay=0)
def pick_block(self,
location,
check_grasp=False,
retry_attempts=0,
delay=0,
action_server=None):
# go to a spot and pick up a block
# if check_grasp is true, it will check torque on gripper and retry or fail if not holding
# open the gripper
# print('Position: ', position)
self.open_gripper()
position = Point(location.x, location.y, self.cruising_height)
orientation = self.get_grasp_orientation(position)
try:
self.raise_table()
self.move_arm_to_pose(position,
orientation,
delay=0,
action_server=action_server)
self.lower_table()
position = Point(location.x, location.y, self.grasp_height)
self.move_arm_to_pose(position,
orientation,
delay=0,
action_server=action_server)
except Exception as e:
current_pose = self.arm.get_current_pose()
if current_pose.pose.position.z - self.cruising_height < 0:
self.move_z_absolute(self.crusing_height)
self.raise_table()
raise (
e
) #problem because sometimes we get exception e.g. if we're already there
# and it will skip the close if so.
if action_server:
action_server.publish_feedback()
self.close_gripper()
self.move_z_absolute(self.cruising_height)
#try to wait until we're up to check grasp
rospy.sleep(0.5)
if check_grasp is True:
if (self.check_grasp() is False):
print("Grasp failed!")
self.raise_table()
raise (Exception("grasp failed!"))
# for now, but we want to check finger torques
# for i in range(retry_attempts):
# self.move_z(0.3)
self.raise_table()
rospy.sleep(delay)
def place_block(self,
location,
check_grasp=False,
delay=0,
action_server=None):
# go to a spot an drop a block
# if check_grasp is true, it will check torque on gripper and fail if not holding a block
# print('Position: ', position)
current_pose = self.arm.get_current_pose()
if current_pose.pose.position.z - self.cruising_height < -.02: # if I'm significantly below cruisng height, correct
self.move_z_absolute(self.cruising_height)
position = Point(location.x, location.y, self.cruising_height)
rospy.loginfo("PLACE POSITION: " + str(position) + "(DROP HEIGHT: " +
str(self.drop_height))
orientation = self.get_grasp_orientation(position)
try:
self.raise_table(
) # only do this as a check in case it isn't already raised
self.move_arm_to_pose(position,
orientation,
delay=0,
action_server=action_server)
self.lower_table()
self.move_z_absolute(self.drop_height)
except Exception as e:
current_pose = self.arm.get_current_pose()
if current_pose.pose.position.z - self.cruising_height < 0:
self.move_z_absolute(self.cruising_height)
self.raise_table()
raise (e)
if action_server:
action_server.publish_feedback()
self.open_gripper()
self.move_z_absolute(self.cruising_height)
self.raise_table()
self.close_gripper()
def point_at_block(self, location, delay=0, action_server=None):
# go to a spot an drop a block
# if check_grasp is true, it will check torque on gripper and fail if not holding a block
# print('Position: ', position)
current_pose = self.arm.get_current_pose()
if current_pose.pose.position.z - self.cruising_height < -.02: # if I'm significantly below cruisng height, correct
self.move_z_absolute(self.cruising_height)
position = Point(location.x, location.y, self.cruising_height)
rospy.loginfo("PLACE POSITION: " + str(position) + "(DROP HEIGHT: " +
str(self.drop_height))
orientation = self.get_grasp_orientation(position)
try:
self.raise_table(
) # only do this as a check in case it isn't already raised
self.move_arm_to_pose(position,
orientation,
delay=0,
action_server=action_server)
self.lower_table()
self.move_z_absolute(self.pointing_height)
self.move_z_absolute(self.cruising_height)
except Exception as e:
current_pose = self.arm.get_current_pose()
if current_pose.pose.position.z - self.cruising_height < 0:
self.move_z_absolute(self.cruising_height)
self.raise_table()
raise (e)
if action_server:
action_server.publish_feedback()
self.raise_table()
def stop_motion(self, home=False, pause=False):
rospy.loginfo("STOPPING the ARM")
# cancel the moveit_trajectory
# self.arm.stop()
# call the emergency stop on kinova
self.emergency_stop()
# rospy.sleep(0.5)
if pause is True:
self.paused = True
if home is True:
# self.restart_arm()
self.home_arm()
def calibrate(self, message):
print("calibrating ", message)
self.place_calibration_block()
rospy.sleep(5) # five seconds to correct the drop if it bounced, etc.
print("moving on...")
self.calibration_server.publish_feedback(
CalibrateFeedback("getting the coordinates"))
params = self.record_calibration_params()
self.set_arm_calibration_params(params[0], params[1])
self.calibration_publisher.publish(
CalibrationParams(params[0], params[1]))
self.calibration_server.set_succeeded(CalibrateResult(params))
def set_arm_calibration_params(self, arm_x_min, arm_y_min):
rospy.set_param("ARM_X_MIN", arm_x_min)
rospy.set_param("ARM_Y_MIN", arm_y_min)
def place_calibration_block(self):
# start by homing the arm (kinova home)
self.calibration_server.publish_feedback(CalibrateFeedback("homing"))
self.home_arm_kinova()
# go to grab a block from a human
self.open_gripper()
self.close_gripper()
self.open_gripper(4)
self.close_gripper(2)
# move to a predetermined spot
self.calibration_server.publish_feedback(
CalibrateFeedback("moving to drop"))
try:
self.move_arm_to_pose(Point(0.4, -0.4, 0.1),
Quaternion(1, 0, 0, 0),
corrections=0)
except Exception as e:
rospy.loginfo("THIS IS TH PRoblem" + str(e))
# drop the block
self.open_gripper()
self.calibration_server.publish_feedback(
CalibrateFeedback("dropped the block"))
calibration_block = {'x': 0.4, 'y': -0.4, 'id': 0}
calibration_action_belief = {
"action": "add",
"block": calibration_block
}
self.action_belief_publisher.publish(
String(json.dumps(calibration_action_belief)))
rospy.loginfo("published arm belief")
return
def record_calibration_params(self):
""" Call the block_tracker service to get the current table config.
Find the calibration block and set the appropriate params.
"""
# make sure we know the dimensions of the table before we start
# fixed table dimensions include tuio_min_x,tuio_min_y,tuio_dist_x,tuio_dist_y,arm_dist_x,arm_dist_y
tuio_bounds = get_tuio_bounds()
arm_bounds = get_arm_bounds(calibrate=False)
try:
block_state = json.loads(self.get_block_state("tuio").tui_state)
except rospy.ServiceException as e:
# self.calibration_server.set_aborted()
raise (ValueError("Failed getting block state to calibrate: " +
str(e)))
if len(block_state) != 1:
# self.calibration_server.set_aborted()
raise (ValueError(
"Failed calibration, either couldn't find block or > 1 block on TUI!"
))
# if we made it here, let's continue!
# start by comparing the reported tuio coords where we dropped the block
# with the arm's localization of the end-effector that dropped it
# (we assume that the block fell straight below the drop point)
drop_pose = self.arm.get_current_pose()
end_effector_x = drop_pose.pose.position.x
end_effector_y = drop_pose.pose.position.y
block_tuio_x = block_state[0]['x']
block_tuio_y = block_state[0]['y']
x_ratio, y_ratio = tuio_to_ratio(block_tuio_x, block_tuio_y,
tuio_bounds)
arm_x_min = end_effector_x - x_ratio * arm_bounds["x_dist"]
arm_y_min = end_effector_y - y_ratio * arm_bounds["y_dist"]
return [arm_x_min, arm_y_min]
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_demo')
# Construct the initial scene object
scene = PlanningSceneInterface()
# Pause for the scene to get ready
rospy.sleep(1)
# Initialize the MoveIt! commander for the right arm
right_arm = MoveGroupCommander('right_arm')
# Initialize the MoveIt! commander for the gripper
right_gripper = MoveGroupCommander('right_gripper')
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Allow some leeway in position (meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.01)
right_arm.set_goal_orientation_tolerance(0.05)
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Allow 5 seconds per planning attempt
right_arm.set_planning_time(5)
# Remove leftover objects from a previous run
scene.remove_attached_object(end_effector_link, 'tool')
scene.remove_world_object('table')
scene.remove_world_object('box1')
scene.remove_world_object('box2')
scene.remove_world_object('target')
# Set the height of the table off the ground
table_ground = 0.75
# Set the length, width and height of the table
table_size = [0.2, 0.7, 0.01]
# Set the length, width and height of the object to attach
tool_size = [0.3, 0.02, 0.02]
# Create a pose for the tool relative to the end-effector
p = PoseStamped()
p.header.frame_id = end_effector_link
scene.attach_mesh
# Place the end of the object within the grasp of the gripper
p.pose.position.x = tool_size[0] / 2.0 - 0.025
p.pose.position.y = 0.0
p.pose.position.z = 0.0
# Align the object with the gripper (straight out)
p.pose.orientation.x = 0
p.pose.orientation.y = 0
p.pose.orientation.z = 0
p.pose.orientation.w = 1
# Attach the tool to the end-effector
scene.attach_box(end_effector_link, 'tool', p, tool_size)
# Add a floating table top
table_pose = PoseStamped()
table_pose.header.frame_id = 'base_footprint'
table_pose.pose.position.x = 0.35
table_pose.pose.position.y = 0.0
table_pose.pose.position.z = table_ground + table_size[2] / 2.0
table_pose.pose.orientation.w = 1.0
scene.add_box('table', table_pose, table_size)
# Update the current state
right_arm.set_start_state_to_current_state()
# Move the arm with the attached object to the 'straight_forward' position
right_arm.set_named_target('straight_forward')
right_arm.go()
rospy.sleep(2)
# Return the arm in the "resting" pose stored in the SRDF file
right_arm.set_named_target('resting')
right_arm.go()
rospy.sleep(2)
scene.remove_attached_object(end_effector_link, 'tool')
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def __init__(self):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 初始化ROS节点
rospy.init_node('moveit_obstacles_demo')
# 初始化场景对象
scene = PlanningSceneInterface()
# 创建一个发布场景变化信息的发布者
self.scene_pub = rospy.Publisher('planning_scene', PlanningScene, queue_size=5)
# 创建一个存储物体颜色的字典对象
self.colors = dict()
# 等待场景准备就绪
rospy.sleep(1)
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander('ur_arm')
# 获取终端link的名称
end_effector_link = arm.get_end_effector_link()
# 设置位置(单位：米)和姿态（单位：弧度）的允许误差
arm.set_goal_position_tolerance(0.01)
arm.set_goal_orientation_tolerance(0.05)
# 当运动规划失败后，允许重新规划
arm.allow_replanning(True)
# 设置目标位置所使用的参考坐标系
reference_frame = 'base_link'
arm.set_pose_reference_frame(reference_frame)
# 设置每次运动规划的时间限制：5s
arm.set_planning_time(5)
# 设置场景物体的名称
table_id = 'table'
box1_id = 'box1'
box2_id = 'box2'
# 移除场景中之前运行残留的物体
scene.remove_world_object(table_id)
scene.remove_world_object(box1_id)
scene.remove_world_object(box2_id)
rospy.sleep(1)
# 控制机械臂先回到初始化位置
arm.set_named_target('home')
arm.go()
rospy.sleep(2)
# 设置桌面的高度
table_ground = 0.25
# 设置table、box1和box2的三维尺寸
table_size = [0.2, 0.7, 0.01]
box1_size = [0.1, 0.05, 0.05]
box2_size = [0.05, 0.05, 0.15]
# 将三个物体加入场景当中
table_pose = PoseStamped()
table_pose.header.frame_id = reference_frame
table_pose.pose.position.x = 0.26
table_pose.pose.position.y = 0.0
table_pose.pose.position.z = table_ground + table_size[2] / 2.0
table_pose.pose.orientation.w = 1.0
scene.add_box(table_id, table_pose, table_size)
box1_pose = PoseStamped()
box1_pose.header.frame_id = reference_frame
box1_pose.pose.position.x = 0.21
box1_pose.pose.position.y = -0.1
box1_pose.pose.position.z = table_ground + table_size[2] + box1_size[2] / 2.0
box1_pose.pose.orientation.w = 1.0
scene.add_box(box1_id, box1_pose, box1_size)
box2_pose = PoseStamped()
box2_pose.header.frame_id = reference_frame
box2_pose.pose.position.x = 0.19
box2_pose.pose.position.y = 0.15
box2_pose.pose.position.z = table_ground + table_size[2] + box2_size[2] / 2.0
box2_pose.pose.orientation.w = 1.0
scene.add_box(box2_id, box2_pose, box2_size)
# 将桌子设置成红色，两个box设置成橙色
self.setColor(table_id, 0.8, 0, 0, 1.0)
self.setColor(box1_id, 0.8, 0.4, 0, 1.0)
self.setColor(box2_id, 0.8, 0.4, 0, 1.0)
# 将场景中的颜色设置发布
self.sendColors()
# 设置机械臂的运动目标位置，位于桌面之上两个盒子之间
target_pose = PoseStamped()
target_pose.header.frame_id = reference_frame
target_pose.pose.position.x = 0.2
target_pose.pose.position.y = 0.0
target_pose.pose.position.z = table_pose.pose.position.z + table_size[2] + 0.05
target_pose.pose.orientation.w = 1.0
# 控制机械臂运动到目标位置
arm.set_pose_target(target_pose, end_effector_link)
arm.go()
rospy.sleep(2)
# 设置机械臂的运动目标位置，进行避障规划
target_pose2 = PoseStamped()
target_pose2.header.frame_id = reference_frame
target_pose2.pose.position.x = 0.2
target_pose2.pose.position.y = -0.25
target_pose2.pose.position.z = table_pose.pose.position.z + table_size[2] + 0.05
target_pose2.pose.orientation.w = 1.0
# 控制机械臂运动到目标位置
arm.set_pose_target(target_pose2, end_effector_link)
arm.go()
rospy.sleep(2)
# 控制机械臂回到初始化位置
arm.set_named_target('home')
arm.go()
# 关闭并退出moveit
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def callback(pose):
object_position_info = pose.position
object_orientation_info = pose.orientation
print object_position_info
moveit_commander.roscpp_initialize(sys.argv)
#rospy.init_node('moveit_cartesian', anonymous=True)
cartesian = rospy.get_param('~cartesian', True)
#set cartesian parameters
ur5_manipulator = MoveGroupCommander('manipulator')
ur5_gripper = MoveGroupCommander('gripper')
ur5_manipulator.allow_replanning(True)
ur5_manipulator.set_pose_reference_frame('base_link')
ur5_manipulator.set_goal_position_tolerance(0.01)
ur5_manipulator.set_goal_orientation_tolerance(0.1)
end_effector_link = ur5_manipulator.get_end_effector_link()
ur5_manipulator.set_named_target('home_j')
ur5_manipulator.go()
ur5_gripper.set_named_target('open')
ur5_gripper.go()
#get the end effort information
start_pose = ur5_manipulator.get_current_pose(end_effector_link).pose
print("The first waypoint:")
print(start_pose)
#define waypoints
waypoints = []
waypoints.append(start_pose)
wpose = deepcopy(start_pose)
wpose.position.z = object_position_info.z+0.25
wpose.position.x = object_position_info.x
wpose.position.y = object_position_info.y
print("The second waypoint:")
print(wpose)
waypoints.append(deepcopy(wpose))
print(" ")
print(waypoints)
if cartesian:
fraction = 0.0
maxtries = 100
attempts = 0
while fraction < 1.0 and attempts < maxtries:
(plan, fraction) = ur5_manipulator.compute_cartesian_path (
waypoints,
0.01,
0.0,
True)
attempts += 1
if attempts % 10 == 0:
rospy.loginfo("Still trying after " + str(attempts) + " attempts...")
if fraction == 1.0:
rospy.loginfo("Path computed successfully. Moving the arm.")
ur5_manipulator.execute(plan)
rospy.sleep(2)
rospy.loginfo("Path execution complete.")
else:
rospy.loginfo("Path planning failed with only " + str(fraction) + " success after " + str(maxtries) + " attempts.")
rospy.sleep(3)
ur5_gripper.set_named_target("close")
plan = ur5_gripper.go()
rospy.sleep(2)
ur5_manipulator.set_named_target('home_j')
ur5_manipulator.go()
rospy.sleep(3)
moveit_commander.roscpp_shutdown()
def __init__(self):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 初始化ROS节点
rospy.init_node('moveit_drawing', anonymous=True)
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander('manipulator')
# 当运动规划失败后，允许重新规划
arm.allow_replanning(True)
# 设置目标位置所使用的参考坐标系
reference_frame = 'base_link'
arm.set_pose_reference_frame('base_link')
# 设置位置(单位：米)和姿态（单位：弧度）的允许误差
arm.set_goal_position_tolerance(0.01)
arm.set_goal_orientation_tolerance(0.01)
# 设置允许的最大速度和加速度
arm.set_max_acceleration_scaling_factor(0.5)
arm.set_max_velocity_scaling_factor(0.5)
# 获取终端link的名称
end_effector_link = arm.get_end_effector_link()
# 控制机械臂先回到初始化位置
arm.set_named_target('home')
arm.go()
rospy.sleep(1)
star_pose = PoseStamped()
star_pose.header.frame_id = reference_frame
star_pose.header.stamp = rospy.Time.now()
star_pose.pose.position.x = 0.40
star_pose.pose.position.y = 0.0
star_pose.pose.position.z = 0.12
star_pose.pose.orientation.w = 1.0
# 设置机械臂终端运动的目标位姿
arm.set_pose_target(star_pose, end_effector_link)
arm.go()
radius = 0.1
centerY = 0.0
centerX = 0.40 - radius
# 初始化路点列表
waypoints = []
starPoints = []
pose_temp = star_pose
for th in numpy.arange(0, 6.2831855, 1.2566371):
pose_temp.pose.position.y = -(centerY + radius * math.sin(th))
pose_temp.pose.position.x = centerX + radius * math.cos(th)
pose_temp.pose.position.z = 0.113
wpose = deepcopy(pose_temp.pose)
starPoints.append(deepcopy(wpose))
# 将圆弧上的路径点加入列表
waypoints.append(starPoints[0])
waypoints.append(starPoints[2])
waypoints.append(starPoints[4])
waypoints.append(starPoints[1])
waypoints.append(starPoints[3])
waypoints.append(starPoints[0])
fraction = 0.0 #路径规划覆盖率
maxtries = 100 #最大尝试规划次数
attempts = 0 #已经尝试规划次数
# 设置机器臂当前的状态作为运动初始状态
arm.set_start_state_to_current_state()
# 尝试规划一条笛卡尔空间下的路径，依次通过所有路点，完成圆弧轨迹
while fraction < 1.0 and attempts < maxtries:
(plan, fraction) = arm.compute_cartesian_path(
waypoints, # waypoint poses，路点列表
0.01, # eef_step，终端步进值
0.0, # jump_threshold，跳跃阈值
True) # avoid_collisions，避障规划
# 尝试次数累加
attempts += 1
# 打印运动规划进程
if attempts % 10 == 0:
rospy.loginfo("Still trying after " + str(attempts) +
" attempts...")
# 如果路径规划成功（覆盖率100%）,则开始控制机械臂运动
if fraction == 1.0:
rospy.loginfo("Path computed successfully. Moving the arm.")
arm.execute(plan)
rospy.loginfo("Path execution complete.")
# 如果路径规划失败，则打印失败信息
else:
rospy.loginfo("Path planning failed with only " + str(fraction) +
" success after " + str(maxtries) + " attempts.")
rospy.sleep(1)
# 控制机械臂先回到初始化位置
arm.set_named_target('home')
arm.go()
rospy.sleep(1)
# 关闭并退出moveit
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def __init__(self):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 初始化ROS节点
rospy.init_node('moveit_cartesian_demo', anonymous=True)
# 是否需要使用笛卡尔空间的运动规划
cartesian = rospy.get_param('~cartesian', True)
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander('manipulator')
# 当运动规划失败后，允许重新规划
arm.allow_replanning(True)
# 设置目标位置所使用的参考坐标系
arm.set_pose_reference_frame('base_link')
# 设置位置(单位：米)和姿态（单位：弧度）的允许误差
arm.set_goal_position_tolerance(0.001)
arm.set_goal_orientation_tolerance(0.1)
# 获取终端link的名称
end_effector_link = arm.get_end_effector_link()
# 设置每次运动规划的时间限制：1s
arm.set_planning_time(1)
# 控制机械臂运动到之前设置的“home”姿态
arm.set_named_target('home')
arm.go()
# 获取当前位姿数据为机械臂运动的起始位姿
start_pose = arm.get_current_pose(end_effector_link).pose
# --------------------- 第一段轨迹生成，关节空间插值 ---------------------#
# 设置机械臂的目标位置，使用六轴的位置数据进行描述（单位：弧度）
joint_positions = [0, -1, 1, 0, -1, 0]
arm.set_joint_value_target(joint_positions)
# 控制机械臂完成运动
arm.go()
rospy.sleep(0.5)
# 获取当前位姿数据为机械臂运动的起始位姿
start_pose = arm.get_current_pose(end_effector_link).pose
# --------------------- 第一段轨迹生成，关节空间插值 ---------------------#
# 初始化路点列表
waypoints = []
# 将初始位姿加入路点列表
if cartesian:
waypoints.append(start_pose)
# 设置第二个路点数据，并加入路点列表
# 第二个路点需要向后运动0.3米，向右运动0.3米
wpose = deepcopy(start_pose)
wpose.orientation.x = 0
wpose.orientation.y = 0.707106781186547
wpose.orientation.z = 0
wpose.orientation.w = 0.707106781186547
wpose.position.x -= 0.2
# wpose.position.y -= 0.4
wpose.position.z -= 1
if cartesian:
waypoints.append(deepcopy(wpose))
else:
arm.set_pose_target(wpose)
arm.go()
rospy.sleep(1)
# 设置第三个路点数据，并加入路点列表
wpose.orientation.x = 0
wpose.orientation.y = 0.707106781186547
wpose.orientation.z = 0
wpose.orientation.w = 0.707106781186547
# wpose.position.x -= 0.5
wpose.position.y -= 0.5
wpose.position.z += 0.2
# wpose.position.x += 0.15
# wpose.position.y += 0.1
# wpose.position.z -= 0.15
if cartesian:
waypoints.append(deepcopy(wpose))
else:
arm.set_pose_target(wpose)
arm.go()
rospy.sleep(1)
# 设置第四个路点数据，回到初始位置，并加入路点列表
if cartesian:
waypoints.append(deepcopy(start_pose))
else:
arm.set_pose_target(start_pose)
arm.go()
rospy.sleep(1)
if cartesian:
fraction = 0.0 #路径规划覆盖率
maxtries = 100 #最大尝试规划次数
attempts = 0 #已经尝试规划次数
# 设置机器臂当前的状态作为运动初始状态
arm.set_start_state_to_current_state()
# 尝试规划一条笛卡尔空间下的路径，依次通过所有路点
while fraction < 1.0 and attempts < maxtries:
(plan, fraction) = arm.compute_cartesian_path (
waypoints, # waypoint poses，路点列表
0.01, # eef_step，终端步进值
0.0, # jump_threshold，跳跃阈值
True) # avoid_collisions，避障规划
# 尝试次数累加
attempts += 1
# 打印运动规划进程
if attempts % 10 == 0:
rospy.loginfo("Still trying after " + str(attempts) + " attempts...")
# 如果路径规划成功（覆盖率100%）,则开始控制机械臂运动
if fraction == 1.0:
rospy.loginfo("Path computed successfully. Moving the arm.")
arm.execute(plan)
rospy.loginfo("Path execution complete.")
# 如果路径规划失败，则打印失败信息
else:
rospy.loginfo("Path planning failed with only " + str(fraction) + " success after " + str(maxtries) + " attempts.")
# 控制机械臂回到初始化位置
arm.set_named_target('home')
arm.go()
rospy.sleep(1)
# 关闭并退出moveit
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def __init__(self):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 初始化ROS节点
rospy.init_node('TCP_Move', anonymous=True)
# 是否需要使用笛卡尔空间的运动规划
cartesian = rospy.get_param('~cartesian', True)
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander('xarm6')
# 当运动规划失败后，允许重新规划
arm.allow_replanning(True)
# 设置目标位置所使用的参考坐标系
arm.set_pose_reference_frame('link_base')
# 设置位置(单位：米)和姿态（单位：弧度）的允许误差
arm.set_goal_position_tolerance(0.001)
arm.set_goal_orientation_tolerance(0.001)
# 设置允许的最大速度和加速度
arm.set_max_acceleration_scaling_factor(0.1)
arm.set_max_velocity_scaling_factor(0.1)
# 获取终端link的名称
end_effector_link = arm.get_end_effector_link()
# 控制机械臂先回到初始化位置
arm.set_named_target('home')
arm.go()
rospy.sleep(1)
# 角度弧度转换
j1 = 90.0 / 180 * math.pi
j2 = -18.6 / 180 * math.pi
j3 = -28.1 / 180 * math.pi
j4 = 1.0 / 180 * math.pi
j5 = 47.6 / 180 * math.pi
j6 = -0.9 / 180 * math.pi
# 设置机械臂的目标位置，使用六轴的位置数据进行描述（单位：弧度）
joint_positions = [j1, j2, j3, j4, j5, j6]
arm.set_joint_value_target(joint_positions)
arm.go()
rospy.sleep(1)
# 向下按压门把手
current_pose = arm.get_current_joint_values()
current_pose[4] += (20.0 / 180.0) * math.pi
arm.set_joint_value_target(current_pose)
arm.go()
rospy.sleep(1)
#推开门
current_pose = arm.get_current_joint_values()
current_pose[0] -= (42.0 / 180.0) * math.pi
current_pose[1] += (2.0 / 180.0) * math.pi
current_pose[2] -= (11.4 / 180.0) * math.pi
arm.set_joint_value_target(current_pose)
arm.go()
rospy.sleep(1)
# 控制机械臂先回到初始化位置
arm.set_named_target('home')
arm.go()
rospy.sleep(1)
# 关闭并退出moveit
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def __init__(self):
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('cobra_move_cartesian', anonymous=True)
arm = MoveGroupCommander(ARM_GROUP)
arm.allow_replanning(True)
# arm.set_goal_position_tolerance(0.01)
arm.set_named_target(START_POSITION)
arm.go()
rospy.sleep(2)
waypoints = list()
pose = PoseStamped().pose
# start with the current pose
waypoints.append(copy.deepcopy(arm.get_current_pose(arm.get_end_effector_link()).pose))
# same orientation for all
q = quaternion_from_euler(0.0, 0.0, 0.0) # roll, pitch, yaw
pose.orientation = Quaternion(*q)
# first pose
pose.position.x = 0.35
pose.position.y = 0.25
pose.position.z = 0.3
waypoints.append(copy.deepcopy(pose))
# second pose
pose.position.x = 0.25
pose.position.y = -0.3
pose.position.z = 0.3
waypoints.append(copy.deepcopy(pose))
# third pose
pose.position.x += 0.15
waypoints.append(copy.deepcopy(pose))
# fourth pose
pose.position.y += 0.15
waypoints.append(copy.deepcopy(pose))
(plan, fraction) = arm.compute_cartesian_path(
waypoints, # waypoints to follow
0.01, # eef_step
0.0) # jump_threshold
print "====== waypoints created ======="
# print waypoints
# ======= show cartesian path ====== #
arm.go()
rospy.sleep(10)
print "========= end ========="
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
pass
### Create a handle for the Planning Scene Interface
psi = PlanningSceneInterface()
rospy.sleep(1.0)
### Create a handle for the Move Group Commander
mgc = MoveGroupCommander("arm")
rospy.sleep(1.0)
### Add virtual obstacle
pose = gen_pose(pos=[-0.2, -0.1, 1.2])
psi.add_box("box", pose, size=(0.15, 0.15, 0.6))
rospy.sleep(1.0)
### Move to stored joint position
mgc.set_named_target("left")
mgc.go()
### Move to Cartesian position
goal_pose = gen_pose(pos=[0.123, -0.417, 1.361],
euler=[3.1415, 0.0, 1.5707])
mgc.go(goal_pose.pose)
### Move Cartesian linear
goal_pose.pose.position.z -= 0.1
(traj, frac) = mgc.compute_cartesian_path([goal_pose.pose], 0.01, 4, True)
mgc.execute(traj)
print "Done"
p2.pose.orientation.z = b2[2]
p2.pose.orientation.w = b2[3]
#detach/remove current scene objects
print 'removing objects...'
robot.detach_object("bowl")
rospy.sleep(1)
scene.remove_world_object("bowl")
scene.remove_world_object("punch")
scene.remove_world_object("glovebox")
rospy.sleep(2)
#reset the gripper and arm position to home
robot.set_start_state_to_current_state()
robot.set_named_target("start_glove")
robot.go()
gripper.set_start_state_to_current_state()
gripper.go()
#add scene objects
print 'adding scene objects'
scene.add_mesh("bowl", p, "8inhemi.STL")
scene.add_mesh("punch", p1, "punch.STL")
scene.add_mesh("glovebox", p2, "GloveBox.stl")
print 'attaching bowl...'
robot.attach_object("bowl")
rospy.sleep(2)
currentbowlpose = p;
gripper.set_named_target("pinch")
class SrRobotCommander(object):
"""
Base class for hand and arm commanders
"""
def __init__(self, name):
"""
Initialize MoveGroupCommander object
@param name - name of the MoveIt group
"""
self._name = name
self._move_group_commander = MoveGroupCommander(name)
self._robot_commander = RobotCommander()
self._robot_name = self._robot_commander._r.get_robot_name()
self.refresh_named_targets()
self._warehouse_name_get_srv = rospy.ServiceProxy(
"get_robot_state", GetState)
self._planning_scene = PlanningSceneInterface()
self._joint_states_lock = threading.Lock()
self._joint_states_listener = \
rospy.Subscriber("joint_states", JointState,
self._joint_states_callback, queue_size=1)
self._joints_position = {}
self._joints_velocity = {}
self._joints_effort = {}
self._joints_state = None
self._clients = {}
self.__plan = None
self._controllers = {}
rospy.wait_for_service('compute_ik')
self._compute_ik = rospy.ServiceProxy('compute_ik', GetPositionIK)
self._forward_k = rospy.ServiceProxy('compute_fk', GetPositionFK)
controller_list_param = rospy.get_param("/move_group/controller_list")
# create dictionary with name of controllers and corresponding joints
self._controllers = {
item["name"]: item["joints"]
for item in controller_list_param
}
self._set_up_action_client(self._controllers)
self.tf_buffer = tf2_ros.Buffer()
self.listener = tf2_ros.TransformListener(self.tf_buffer)
threading.Thread(None, rospy.spin)
def set_planner_id(self, planner_id):
self._move_group_commander.set_planner_id(planner_id)
def set_num_planning_attempts(self, num_planning_attempts):
self._move_group_commander.set_num_planning_attempts(
num_planning_attempts)
def set_planning_time(self, seconds):
self._move_group_commander.set_planning_time(seconds)
def get_end_effector_pose_from_named_state(self, name):
state = self._warehouse_name_get_srv(name, self._robot_name).state
return self.get_end_effector_pose_from_state(state)
def get_end_effector_pose_from_state(self, state):
header = Header()
fk_link_names = [self._move_group_commander.get_end_effector_link()]
header.frame_id = self._move_group_commander.get_pose_reference_frame()
response = self._forward_k(header, fk_link_names, state)
return response.pose_stamped[0]
def get_planning_frame(self):
return self._move_group_commander.get_planning_frame()
def set_pose_reference_frame(self, reference_frame):
self._move_group_commander.set_pose_reference_frame(reference_frame)
def get_group_name(self):
return self._name
def refresh_named_targets(self):
self._srdf_names = self.__get_srdf_names()
self._warehouse_names = self.__get_warehouse_names()
def set_max_velocity_scaling_factor(self, value):
self._move_group_commander.set_max_velocity_scaling_factor(value)
def set_max_acceleration_scaling_factor(self, value):
self._move_group_commander.set_max_acceleration_scaling_factor(value)
def allow_looking(self, value):
self._move_group_commander.allow_looking(value)
def allow_replanning(self, value):
self._move_group_commander.allow_replanning(value)
def execute(self):
"""
Executes the last plan made.
"""
if self.check_plan_is_valid():
self._move_group_commander.execute(self.__plan)
self.__plan = None
else:
rospy.logwarn("No plans were made, not executing anything.")
def execute_plan(self, plan):
if self.check_given_plan_is_valid(plan):
self._move_group_commander.execute(plan)
self.__plan = None
else:
rospy.logwarn("Plan is not valid, not executing anything.")
def move_to_joint_value_target(self,
joint_states,
wait=True,
angle_degrees=False):
"""
Set target of the robot's links and moves to it.
@param joint_states - dictionary with joint name and value. It can
contain only joints values of which need to be changed.
@param wait - should method wait for movement end or not
@param angle_degrees - are joint_states in degrees or not
"""
joint_states_cpy = copy.deepcopy(joint_states)
if angle_degrees:
joint_states_cpy.update(
(joint, radians(i)) for joint, i in joint_states_cpy.items())
self._move_group_commander.set_start_state_to_current_state()
self._move_group_commander.set_joint_value_target(joint_states_cpy)
self._move_group_commander.go(wait=wait)
def plan_to_joint_value_target(self, joint_states, angle_degrees=False):
"""
Set target of the robot's links and plans.
@param joint_states - dictionary with joint name and value. It can
contain only joints values of which need to be changed.
@param angle_degrees - are joint_states in degrees or not
This is a blocking method.
"""
joint_states_cpy = copy.deepcopy(joint_states)
if angle_degrees:
joint_states_cpy.update(
(joint, radians(i)) for joint, i in joint_states_cpy.items())
self._move_group_commander.set_start_state_to_current_state()
self._move_group_commander.set_joint_value_target(joint_states_cpy)
self.__plan = self._move_group_commander.plan()
return self.__plan
def check_plan_is_valid(self):
"""
Checks if current plan contains a valid trajectory
"""
return (self.__plan is not None
and len(self.__plan.joint_trajectory.points) > 0)
def check_given_plan_is_valid(self, plan):
"""
Checks if given plan contains a valid trajectory
"""
return (plan is not None and len(plan.joint_trajectory.points) > 0)
def get_robot_name(self):
return self._robot_name
def named_target_in_srdf(self, name):
return name in self._srdf_names
def set_named_target(self, name):
if name in self._srdf_names:
self._move_group_commander.set_named_target(name)
elif (name in self._warehouse_names):
response = self._warehouse_name_get_srv(name, self._robot_name)
active_names = self._move_group_commander._g.get_active_joints()
joints = response.state.joint_state.name
positions = response.state.joint_state.position
js = {}
for n, this_name in enumerate(joints):
if this_name in active_names:
js[this_name] = positions[n]
self._move_group_commander.set_joint_value_target(js)
else:
rospy.logerr("Unknown named state '%s'..." % name)
return False
return True
def get_named_target_joint_values(self, name):
output = dict()
if (name in self._srdf_names):
output = self._move_group_commander.\
_g.get_named_target_values(str(name))
elif (name in self._warehouse_names):
js = self._warehouse_name_get_srv(
name, self._robot_name).state.joint_state
for x, n in enumerate(js.name):
if n in self._move_group_commander._g.get_joints():
output[n] = js.position[x]
else:
rospy.logerr("No target named %s" % name)
return None
return output
def get_end_effector_link(self):
return self._move_group_commander.get_end_effector_link()
def get_current_pose(self, reference_frame=None):
"""
Get the current pose of the end effector.
@param reference_frame - The desired reference frame in which end effector pose should be returned.
If none is passed, it will use the planning frame as reference.
@return geometry_msgs.msg.Pose() - current pose of the end effector
"""
if reference_frame is not None:
try:
trans = self.tf_buffer.lookup_transform(
reference_frame,
self._move_group_commander.get_end_effector_link(),
rospy.Time(0), rospy.Duration(5.0))
current_pose = geometry_msgs.msg.Pose()
current_pose.position.x = trans.transform.translation.x
current_pose.position.y = trans.transform.translation.y
current_pose.position.z = trans.transform.translation.z
current_pose.orientation.x = trans.transform.rotation.x
current_pose.orientation.y = trans.transform.rotation.y
current_pose.orientation.z = trans.transform.rotation.z
current_pose.orientation.w = trans.transform.rotation.w
return current_pose
except (tf2_ros.LookupException, tf2_ros.ConnectivityException,
tf2_ros.ExtrapolationException):
rospy.logwarn(
"Couldn't get the pose from " +
self._move_group_commander.get_end_effector_link() +
" in " + reference_frame + " reference frame")
return None
else:
return self._move_group_commander.get_current_pose().pose
def get_current_state(self):
"""
Get the current joint state of the group being used.
@return a dictionary with the joint names as keys and current joint values
"""
joint_names = self._move_group_commander._g.get_active_joints()
joint_values = self._move_group_commander._g.get_current_joint_values()
return dict(zip(joint_names, joint_values))
def get_current_state_bounded(self):
"""
Get the current joint state of the group being used, enforcing that they are within each joint limits.
@return a dictionary with the joint names as keys and current joint values
"""
current = self._move_group_commander._g.get_current_state_bounded()
names = self._move_group_commander._g.get_active_joints()
output = {n: current[n] for n in names if n in current}
return output
def get_robot_state_bounded(self):
return self._move_group_commander._g.get_current_state_bounded()
def move_to_named_target(self, name, wait=True):
"""
Set target of the robot's links and moves to it
@param name - name of the target pose defined in SRDF
@param wait - should method wait for movement end or not
"""
self._move_group_commander.set_start_state_to_current_state()
if self.set_named_target(name):
self._move_group_commander.go(wait=wait)
def plan_to_named_target(self, name):
"""
Set target of the robot's links and plans
This is a blocking method.
@param name - name of the target pose defined in SRDF
"""
self._move_group_commander.set_start_state_to_current_state()
if self.set_named_target(name):
self.__plan = self._move_group_commander.plan()
def __get_warehouse_names(self):
try:
list_srv = rospy.ServiceProxy("list_robot_states", ListStates)
return list_srv("", self._robot_name).states
except rospy.ServiceException as exc:
rospy.logwarn("Couldn't access warehouse: " + str(exc))
return list()
def _reset_plan(self):
self.__plan = None
def _set_plan(self, plan):
self.__plan = plan
def __get_srdf_names(self):
return self._move_group_commander._g.get_named_targets()
def get_named_targets(self):
"""
Get the complete list of named targets, from SRDF
as well as warehouse poses if available.
@return list of strings containing names of targets.
"""
return self._srdf_names + self._warehouse_names
def get_joints_position(self):
"""
Returns joints position
@return - dictionary with joints positions
"""
with self._joint_states_lock:
return self._joints_position
def get_joints_velocity(self):
"""
Returns joints velocities
@return - dictionary with joints velocities
"""
with self._joint_states_lock:
return self._joints_velocity
def _get_joints_effort(self):
"""
Returns joints effort
@return - dictionary with joints efforts
"""
with self._joint_states_lock:
return self._joints_effort
def get_joints_state(self):
"""
Returns joints state
@return - JointState message
"""
with self._joint_states_lock:
return self._joints_state
def run_joint_trajectory(self, joint_trajectory):
"""
Moves robot through all joint states with specified timeouts
@param joint_trajectory - JointTrajectory class object. Represents
trajectory of the joints which would be executed.
"""
plan = RobotTrajectory()
plan.joint_trajectory = joint_trajectory
self._move_group_commander.execute(plan)
def make_named_trajectory(self, trajectory):
"""
Makes joint value trajectory from specified by named poses (either from
SRDF or from warehouse)
@param trajectory - list of waypoints, each waypoint is a dict with
the following elements (n.b either name or joint_angles is required)
- name -> the name of the way point
- joint_angles -> a dict of joint names and angles
- interpolate_time -> time to move from last wp
- pause_time -> time to wait at this wp
- degrees -> set to true if joint_angles is specified in degrees. Assumed false if absent.
"""
current = self.get_current_state_bounded()
joint_trajectory = JointTrajectory()
joint_names = current.keys()
joint_trajectory.joint_names = joint_names
start = JointTrajectoryPoint()
start.positions = current.values()
start.time_from_start = rospy.Duration.from_sec(0.001)
joint_trajectory.points.append(start)
time_from_start = 0.0
for wp in trajectory:
joint_positions = None
if 'name' in wp.keys():
joint_positions = self.get_named_target_joint_values(
wp['name'])
elif 'joint_angles' in wp.keys():
joint_positions = copy.deepcopy(wp['joint_angles'])
if 'degrees' in wp.keys() and wp['degrees']:
for joint, angle in joint_positions.iteritems():
joint_positions[joint] = radians(angle)
if joint_positions is None:
rospy.logerr(
"Invalid waypoint. Must contain valid name for named target or dict of joint angles."
)
return None
new_positions = {}
for n in joint_names:
new_positions[n] = joint_positions[
n] if n in joint_positions else current[n]
trajectory_point = JointTrajectoryPoint()
trajectory_point.positions = [
new_positions[n] for n in joint_names
]
current = new_positions
time_from_start += wp['interpolate_time']
trajectory_point.time_from_start = rospy.Duration.from_sec(
time_from_start)
joint_trajectory.points.append(trajectory_point)
if 'pause_time' in wp and wp['pause_time'] > 0:
extra = JointTrajectoryPoint()
extra.positions = trajectory_point.positions
time_from_start += wp['pause_time']
extra.time_from_start = rospy.Duration.from_sec(
time_from_start)
joint_trajectory.points.append(extra)
return joint_trajectory
def send_stop_trajectory_unsafe(self):
"""
Sends a trajectory of all active joints at their current position.
This stops the robot.
"""
current = self.get_current_state_bounded()
trajectory_point = JointTrajectoryPoint()
trajectory_point.positions = current.values()
trajectory_point.time_from_start = rospy.Duration.from_sec(0.1)
trajectory = JointTrajectory()
trajectory.points.append(trajectory_point)
trajectory.joint_names = current.keys()
self.run_joint_trajectory_unsafe(trajectory)
def run_named_trajectory_unsafe(self, trajectory, wait=False):
"""
Moves robot through trajectory specified by named poses, either from
SRDF or from warehouse. Runs trajectory directly via contoller.
@param trajectory - list of waypoints, each waypoint is a dict with
the following elements:
- name -> the name of the way point
- interpolate_time -> time to move from last wp
- pause_time -> time to wait at this wp
"""
joint_trajectory = self.make_named_trajectory(trajectory)
if joint_trajectory is not None:
self.run_joint_trajectory_unsafe(joint_trajectory, wait)
def run_named_trajectory(self, trajectory):
"""
Moves robot through trajectory specified by named poses, either from
SRDF or from warehouse. Runs trajectory via moveit.
@param trajectory - list of waypoints, each waypoint is a dict with
the following elements:
- name -> the name of the way point
- interpolate_time -> time to move from last wp
- pause_time -> time to wait at this wp
"""
joint_trajectory = self.make_named_trajectory(trajectory)
if joint_trajectory is not None:
self.run_joint_trajectory(joint_trajectory)
def move_to_position_target(self, xyz, end_effector_link="", wait=True):
"""
Specify a target position for the end-effector and moves to it
@param xyz - new position of end-effector
@param end_effector_link - name of the end effector link
@param wait - should method wait for movement end or not
"""
self._move_group_commander.set_start_state_to_current_state()
self._move_group_commander.set_position_target(xyz, end_effector_link)
self._move_group_commander.go(wait=wait)
def plan_to_position_target(self, xyz, end_effector_link=""):
"""
Specify a target position for the end-effector and plans.
This is a blocking method.
@param xyz - new position of end-effector
@param end_effector_link - name of the end effector link
"""
self._move_group_commander.set_start_state_to_current_state()
self._move_group_commander.set_position_target(xyz, end_effector_link)
self.__plan = self._move_group_commander.plan()
def move_to_pose_target(self, pose, end_effector_link="", wait=True):
"""
Specify a target pose for the end-effector and moves to it
@param pose - new pose of end-effector: a Pose message, a PoseStamped
message or a list of 6 floats: [x, y, z, rot_x, rot_y, rot_z] or a list
of 7 floats [x, y, z, qx, qy, qz, qw]
@param end_effector_link - name of the end effector link
@param wait - should method wait for movement end or not
"""
self._move_group_commander.set_start_state_to_current_state()
self._move_group_commander.set_pose_target(pose, end_effector_link)
self._move_group_commander.go(wait=wait)
def plan_to_pose_target(self,
pose,
end_effector_link="",
alternative_method=False):
"""
Specify a target pose for the end-effector and plans.
This is a blocking method.
@param pose - new pose of end-effector: a Pose message, a PoseStamped
message or a list of 6 floats: [x, y, z, rot_x, rot_y, rot_z] or a list
of 7 floats [x, y, z, qx, qy, qz, qw]
@param end_effector_link - name of the end effector link
@param alternative_method - use set_joint_value_target instead of set_pose_target
"""
self._move_group_commander.set_start_state_to_current_state()
if alternative_method:
self._move_group_commander.set_joint_value_target(
pose, end_effector_link)
else:
self._move_group_commander.set_pose_target(pose, end_effector_link)
self.__plan = self._move_group_commander.plan()
return self.__plan
def _joint_states_callback(self, joint_state):
"""
The callback function for the topic joint_states.
It will store the received joint position, velocity and efforts
information into dictionaries
@param joint_state - the message containing the joints data.
"""
with self._joint_states_lock:
self._joints_state = joint_state
self._joints_position = {
n: p
for n, p in zip(joint_state.name, joint_state.position)
}
self._joints_velocity = {
n: v
for n, v in zip(joint_state.name, joint_state.velocity)
}
self._joints_effort = {
n: v
for n, v in zip(joint_state.name, joint_state.effort)
}
def _set_up_action_client(self, controller_list):
"""
Sets up an action client to communicate with the trajectory controller
"""
self._action_running = {}
for controller_name in controller_list.keys():
self._action_running[controller_name] = False
service_name = controller_name + "/follow_joint_trajectory"
self._clients[controller_name] = SimpleActionClient(
service_name, FollowJointTrajectoryAction)
if self._clients[controller_name].wait_for_server(
timeout=rospy.Duration(4)) is False:
err_msg = 'Failed to connect to action server ({}) in 4 sec'.format(
service_name)
rospy.logwarn(err_msg)
def move_to_joint_value_target_unsafe(self,
joint_states,
time=0.002,
wait=True,
angle_degrees=False):
"""
Set target of the robot's links and moves to it.
@param joint_states - dictionary with joint name and value. It can
contain only joints values of which need to be changed.
@param time - time in s (counting from now) for the robot to reach the
target (it needs to be greater than 0.0 for it not to be rejected by
the trajectory controller)
@param wait - should method wait for movement end or not
@param angle_degrees - are joint_states in degrees or not
"""
# self._update_default_trajectory()
# self._set_targets_to_default_trajectory(joint_states)
goals = {}
joint_states_cpy = copy.deepcopy(joint_states)
if angle_degrees:
joint_states_cpy.update(
(joint, radians(i)) for joint, i in joint_states_cpy.items())
for controller in self._controllers:
controller_joints = self._controllers[controller]
goal = FollowJointTrajectoryGoal()
goal.trajectory.joint_names = []
point = JointTrajectoryPoint()
point.positions = []
for x in joint_states_cpy.keys():
if x in controller_joints:
goal.trajectory.joint_names.append(x)
point.positions.append(joint_states_cpy[x])
point.time_from_start = rospy.Duration.from_sec(time)
goal.trajectory.points = [point]
goals[controller] = goal
self._call_action(goals)
if not wait:
return
for i in self._clients.keys():
if not self._clients[i].wait_for_result():
rospy.loginfo("Trajectory not completed")
def action_is_running(self, controller=None):
if controller is not None:
return self._action_running[controller]
for controller_running in self._action_running.values():
if controller_running:
return True
return False
def _action_done_cb(self, controller, terminal_state, result):
self._action_running[controller] = False
def _call_action(self, goals):
for client in self._clients:
self._action_running[client] = True
self._clients[client].send_goal(
goals[client],
lambda terminal_state, result: self._action_done_cb(
client, terminal_state, result))
def run_joint_trajectory_unsafe(self, joint_trajectory, wait=True):
"""
Moves robot through all joint states with specified timeouts
@param joint_trajectory - JointTrajectory class object. Represents
trajectory of the joints which would be executed.
@param wait - should method wait for movement end or not
"""
goals = {}
for controller in self._controllers:
controller_joints = self._controllers[controller]
goal = FollowJointTrajectoryGoal()
goal.trajectory = copy.deepcopy(joint_trajectory)
indices_of_joints_in_this_controller = []
for i, joint in enumerate(joint_trajectory.joint_names):
if joint in controller_joints:
indices_of_joints_in_this_controller.append(i)
goal.trajectory.joint_names = [
joint_trajectory.joint_names[i]
for i in indices_of_joints_in_this_controller
]
for point in goal.trajectory.points:
if point.positions:
point.positions = [
point.positions[i]
for i in indices_of_joints_in_this_controller
]
if point.velocities:
point.velocities = [
point.velocities[i]
for i in indices_of_joints_in_this_controller
]
if point.effort:
point.effort = [
point.effort[i]
for i in indices_of_joints_in_this_controller
]
goals[controller] = goal
self._call_action(goals)
if not wait:
return
for i in self._clients.keys():
if not self._clients[i].wait_for_result():
rospy.loginfo("Trajectory not completed")
def plan_to_waypoints_target(self,
waypoints,
reference_frame=None,
eef_step=0.005,
jump_threshold=0.0):
"""
Specify a set of waypoints for the end-effector and plans.
This is a blocking method.
@param reference_frame - the reference frame in which the waypoints are given
@param waypoints - an array of poses of end-effector
@param eef_step - configurations are computed for every eef_step meters
@param jump_threshold - maximum distance in configuration space between consecutive points in the resulting path
"""
old_frame = self._move_group_commander.get_pose_reference_frame()
if reference_frame is not None:
self.set_pose_reference_frame(reference_frame)
(self.__plan,
fraction) = self._move_group_commander.compute_cartesian_path(
waypoints, eef_step, jump_threshold)
self.set_pose_reference_frame(old_frame)
def set_teach_mode(self, teach):
"""
Activates/deactivates the teach mode for the robot.
Activation: stops the the trajectory controllers for the robot, and
sets it to teach mode.
Deactivation: stops the teach mode and starts trajectory controllers
for the robot.
Currently this method blocks for a few seconds when called on a hand,
while the hand parameters are reloaded.
@param teach - bool to activate or deactivate teach mode
"""
if teach:
mode = RobotTeachModeRequest.TEACH_MODE
else:
mode = RobotTeachModeRequest.TRAJECTORY_MODE
self.change_teach_mode(mode, self._name)
def move_to_trajectory_start(self, trajectory, wait=True):
"""
Make and execute a plan from the current state to the first state in an pre-existing trajectory
@param trajectory - moveit_msgs/JointTrajectory
@param wait - Bool to specify if movement should block untill finished.
"""
if len(trajectory.points) <= 0:
rospy.logerr("Trajectory has no points in it, can't reverse...")
return None
first_point = trajectory.points[0]
end_state = dict(zip(trajectory.joint_names, first_point.positions))
self.move_to_joint_value_target(end_state, wait=wait)
@staticmethod
def change_teach_mode(mode, robot):
teach_mode_client = rospy.ServiceProxy('/teach_mode', RobotTeachMode)
req = RobotTeachModeRequest()
req.teach_mode = mode
req.robot = robot
try:
resp = teach_mode_client(req)
if resp.result == RobotTeachModeResponse.ERROR:
rospy.logerr("Failed to change robot %s to mode %d", robot,
mode)
else:
rospy.loginfo("Changed robot %s to mode %d Result = %d", robot,
mode, resp.result)
except rospy.ServiceException:
rospy.logerr("Failed to call service teach_mode")
def get_ik(self, target_pose, avoid_collisions=False, joint_states=None):
"""
Computes the inverse kinematics for a given pose. It returns a JointState
@param target_pose - A given pose of type PoseStamped
@param avoid_collisions - Find an IK solution that avoids collisions. By default, this is false
"""
service_request = PositionIKRequest()
service_request.group_name = self._name
service_request.ik_link_name = self._move_group_commander.get_end_effector_link(
)
service_request.pose_stamped = target_pose
service_request.timeout.secs = 0.5
service_request.avoid_collisions = avoid_collisions
if joint_states is None:
service_request.robot_state.joint_state = self.get_joints_state()
else:
service_request.robot_state.joint_state = joint_states
try:
resp = self._compute_ik(ik_request=service_request)
# Check if error_code.val is SUCCESS=1
if resp.error_code.val != 1:
if resp.error_code.val == -10:
rospy.logerr("Unreachable point: Start state in collision")
elif resp.error_code.val == -12:
rospy.logerr("Unreachable point: Goal state in collision")
elif resp.error_code.val == -31:
rospy.logerr("Unreachable point: No IK solution")
else:
rospy.logerr("Unreachable point (error: %s)" %
resp.error_code)
return
else:
return resp.solution.joint_state
except rospy.ServiceException, e:
rospy.logerr("Service call failed: %s" % e)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_demo')
# Use the planning scene object to add or remove objects
scene = PlanningSceneInterface("base_link")
# Create a scene publisher to push changes to the scene
self.scene_pub = rospy.Publisher('planning_scene', PlanningScene)
# Create a publisher for displaying gripper poses
self.gripper_pose_pub = rospy.Publisher('gripper_pose', PoseStamped)
# Create a dictionary to hold object colors
self.colors = dict()
# Initialize the move group for the right arm
right_arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the right gripper
right_gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Allow some leeway in position (meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.05)
right_arm.set_goal_orientation_tolerance(0.1)
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Set the right arm reference frame
right_arm.set_pose_reference_frame(REFERENCE_FRAME)
# Allow 5 seconds per planning attempt
right_arm.set_planning_time(15)
# Set a limit on the number of pick attempts before bailing
max_pick_attempts = 5
# Set a limit on the number of place attempts
max_place_attempts = 3
# Give the scene a chance to catch up
rospy.sleep(2)
# Connect to the UBR-1 find_objects action server
rospy.loginfo("Connecting to basic_grasping_perception/find_objects...")
find_objects = actionlib.SimpleActionClient("basic_grasping_perception/find_objects", FindGraspableObjectsAction)
find_objects.wait_for_server()
rospy.loginfo("...connected")
# Give the scene a chance to catch up
rospy.sleep(1)
# Start the arm in the "resting" pose stored in the SRDF file
right_arm.set_named_target('resting')
right_arm.go()
# Open the gripper to the neutral position
right_gripper.set_joint_value_target(GRIPPER_NEUTRAL)
right_gripper.go()
rospy.sleep(1)
# Begin the main perception and pick-and-place loop
while not rospy.is_shutdown():
# Initialize the grasping goal
goal = FindGraspableObjectsGoal()
# We don't use the UBR-1 grasp planner as it does not work with our gripper
goal.plan_grasps = False
# Send the goal request to the find_objects action server which will trigger
# the perception pipeline
find_objects.send_goal(goal)
# Wait for a result
find_objects.wait_for_result(rospy.Duration(5.0))
# The result will contain support surface(s) and objects(s) if any are detected
find_result = find_objects.get_result()
# Display the number of objects found
rospy.loginfo("Found %d objects" % len(find_result.objects))
# Remove all previous objects from the planning scene
for name in scene.getKnownCollisionObjects():
scene.removeCollisionObject(name, False)
for name in scene.getKnownAttachedObjects():
scene.removeAttachedObject(name, False)
scene.waitForSync()
# Clear the virtual object colors
scene._colors = dict()
# Use the nearest object on the table as the target
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_size = None
the_object = None
the_object_dist = 1.0
count = -1
# Cycle through all detected objects and keep the nearest one
for obj in find_result.objects:
count += 1
scene.addSolidPrimitive("object%d"%count,
obj.object.primitives[0],
obj.object.primitive_poses[0],
wait = False)
# Choose the object nearest to the robot
dx = obj.object.primitive_poses[0].position.x - args.x
dy = obj.object.primitive_poses[0].position.y
d = math.sqrt((dx * dx) + (dy * dy))
if d < the_object_dist:
the_object_dist = d
the_object = count
# Get the size of the target
target_size = obj.object.primitives[0].dimensions
# Set the target pose
target_pose.pose = obj.object.primitive_poses[0]
# We want the gripper to be horizontal
target_pose.pose.orientation.x = 0.0
target_pose.pose.orientation.y = 0.0
target_pose.pose.orientation.z = 0.0
target_pose.pose.orientation.w = 1.0
# Make sure we found at least one object before setting the target ID
if the_object != None:
target_id = "object%d"%the_object
# Insert the support surface into the planning scene
for obj in find_result.support_surfaces:
# Extend surface to floor
height = obj.primitive_poses[0].position.z
obj.primitives[0].dimensions = [obj.primitives[0].dimensions[0],
2.0, # make table wider
obj.primitives[0].dimensions[2] + height]
obj.primitive_poses[0].position.z += -height/2.0
# Add to scene
scene.addSolidPrimitive(obj.name,
obj.primitives[0],
obj.primitive_poses[0],
wait = False)
# Get the table dimensions
table_size = obj.primitives[0].dimensions
# If no objects detected, try again
if the_object == None or target_size is None:
rospy.logerr("Nothing to grasp! try again...")
continue
# Wait for the scene to sync
scene.waitForSync()
# Set colors of the table and the object we are grabbing
scene.setColor(target_id, 223.0/256.0, 90.0/256.0, 12.0/256.0) # orange
scene.setColor(find_result.objects[the_object].object.support_surface, 0.3, 0.3, 0.3, 0.7) # grey
scene.sendColors()
# Skip pick-and-place if we are just detecting objects
if args.objects:
if args.once:
exit(0)
else:
continue
# Get the support surface ID
support_surface = find_result.objects[the_object].object.support_surface
# Set the support surface name to the table object
right_arm.set_support_surface_name(support_surface)
# Specify a pose to place the target after being picked up
place_pose = PoseStamped()
place_pose.header.frame_id = REFERENCE_FRAME
place_pose.pose.position.x = target_pose.pose.position.x
place_pose.pose.position.y = 0.03
place_pose.pose.position.z = table_size[2] + target_size[2] / 2.0 + 0.015
place_pose.pose.orientation.w = 1.0
# Initialize the grasp pose to the target pose
grasp_pose = target_pose
# Shift the grasp pose half the size of the target to center it in the gripper
try:
grasp_pose.pose.position.x += target_size[0] / 2.0
grasp_pose.pose.position.y -= 0.01
grasp_pose.pose.position.z += target_size[2] / 2.0
except:
rospy.loginfo("Invalid object size so skipping")
continue
# Generate a list of grasps
grasps = self.make_grasps(grasp_pose, [target_id])
# Publish the grasp poses so they can be viewed in RViz
for grasp in grasps:
self.gripper_pose_pub.publish(grasp.grasp_pose)
rospy.sleep(0.2)
# Track success/failure and number of attempts for pick operation
result = None
n_attempts = 0
# Set the start state to the current state
right_arm.set_start_state_to_current_state()
# Repeat until we succeed or run out of attempts
while result != MoveItErrorCodes.SUCCESS and n_attempts < max_pick_attempts:
result = right_arm.pick(target_id, grasps)
n_attempts += 1
rospy.loginfo("Pick attempt: " + str(n_attempts))
rospy.sleep(1.0)
# If the pick was successful, attempt the place operation
if result == MoveItErrorCodes.SUCCESS:
result = None
n_attempts = 0
# Generate valid place poses
places = self.make_places(place_pose)
# Set the start state to the current state
#right_arm.set_start_state_to_current_state()
# Repeat until we succeed or run out of attempts
while result != MoveItErrorCodes.SUCCESS and n_attempts < max_place_attempts:
for place in places:
result = right_arm.place(target_id, place)
if result == MoveItErrorCodes.SUCCESS:
break
n_attempts += 1
rospy.loginfo("Place attempt: " + str(n_attempts))
rospy.sleep(0.2)
if result != MoveItErrorCodes.SUCCESS:
rospy.loginfo("Place operation failed after " + str(n_attempts) + " attempts.")
else:
rospy.loginfo("Pick operation failed after " + str(n_attempts) + " attempts.")
rospy.sleep(2)
# Open the gripper to the neutral position
right_gripper.set_joint_value_target(GRIPPER_NEUTRAL)
right_gripper.go()
rospy.sleep(2)
# Return the arm to the "resting" pose stored in the SRDF file
right_arm.set_named_target('resting')
right_arm.go()
rospy.sleep(2)
# Give the servos a rest
arbotix_relax_all_servos()
rospy.sleep(2)
if args.once:
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
# Initialize the ROS node
rospy.init_node('moveit_demo', anonymous=True)
cartesian = rospy.get_param('~cartesian', True)
# Connect to the arm move group
arm = MoveGroupCommander('robot')
gripper = MoveGroupCommander("gripper")
# Allow replanning to increase the odds of a solution
arm.allow_replanning(True)
# Set the right arm reference frame
arm.set_pose_reference_frame('base_link')
# Allow some leeway in position(meters) and orientation (radians)
# arm.set_goal_position_tolerance(0.01)
# arm.set_goal_orientation_tolerance(0.1)
arm.set_goal_position_tolerance(0.01)
arm.set_goal_orientation_tolerance(0.1) #(0.523599)
# Get the name of the end-effector link
end_effector_link = arm.get_end_effector_link()
gripper.set_named_target("GripperOpen")
gripper.go(wait=True)
rospy.sleep(3) #5
gripper.set_named_target("GripperClose")
gripper.go(wait=True)
rospy.sleep(1)
# # Start in the "cartesian_z" (demo) configuration stored in the SRDF file
arm.set_named_target('cartesian_z')
# # Plan and execute a trajectory to the goal configuration
arm.go(wait=True)
rospy.sleep(5)
# Execute the position again in order to start from there - !!!!workaround
# arm.set_named_target('cartesian_z')
# arm.go(wait=True)
# Get the current pose so we can add it as a waypoint
start_pose = arm.get_current_pose(end_effector_link).pose
# Initialize the waypoints list
waypoints = []
# Set the first waypoint to be the starting pose
if cartesian:
# Append the pose to the waypoints list
waypoints.append(start_pose)
wpose = deepcopy(start_pose)
# Set the next waypoint back 0.2 meters and right 0.2 meters
wpose.position.x -= 0.0 #05#0.01
wpose.position.y -= 0.0
wpose.position.z -= 0.25
if cartesian:
# Append the pose to the waypoints list
waypoints.append(deepcopy(wpose))
else:
arm.set_pose_target(wpose)
arm.go()
rospy.sleep(1)
# Set the next waypoint to the right 0.15 meters
wpose.position.x += 0.0 #0.05#0.01
wpose.position.y += 0.0
wpose.position.z += 0.38
if cartesian:
# Append the pose to the waypoints list
waypoints.append(deepcopy(wpose))
else:
arm.set_pose_target(wpose)
arm.go()
rospy.sleep(1)
# Set the next waypoint to the right 0.15 meters
wpose.position.x += 0.0 #0.05#0.01
wpose.position.y += 0.0
wpose.position.z -= 0.38
if cartesian:
# Append the pose to the waypoints list
waypoints.append(deepcopy(start_pose))
else:
arm.set_pose_target(start_pose)
arm.go()
rospy.sleep(1)
wpose.position.x += 0.0
wpose.position.y += 0.0
wpose.position.z += 0.25
if cartesian:
# Append the pose to the waypoints list
waypoints.append(deepcopy(start_pose))
else:
arm.set_pose_target(start_pose)
arm.go()
rospy.sleep(1)
if cartesian:
fraction = 0.0
maxtries = 100 #100
attempts = 0
# Set the internal state to the current state
arm.set_start_state_to_current_state()
# Plan the Cartesian path connecting the waypoints
while fraction < 1.0 and attempts < maxtries:
(plan, fraction) = arm.compute_cartesian_path(
waypoints, # waypoint poses
0.01, # eef_step
0.0, # jump_threshold
True) # avoid_collisions
# Increment the number of attempts
attempts += 1
# Print out a progress message
if attempts % 10 == 0:
rospy.loginfo("Still trying after " + str(attempts) +
" attempts...")
# If we have a complete plan, execute the trajectory
if fraction == 1.0:
rospy.loginfo("Path computed successfully. Moving the arm.")
arm.execute(plan, wait=True)
rospy.loginfo("Path execution complete.")
else:
rospy.loginfo("Path planning failed with only " +
str(fraction) + " success after " +
str(maxtries) + " attempts.")
# Move normally back to the 'transport_position' position
# arm.set_named_target('cartesian_z')
# arm.go(wait=True)
rospy.sleep(22)
arm.set_named_target('transport_position')
arm.go(wait=True)
rospy.sleep(27)
gripper.set_named_target("GripperOpen")
gripper.go(wait=True)
rospy.sleep(5)
gripper.set_named_target("GripperClose")
gripper.go(wait=True)
rospy.sleep(5)
arm.set_named_target('transport_position')
arm.go(wait=True)
rospy.sleep(27)
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit MoveIt
moveit_commander.os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_demo')
# Use the planning scene object to add or remove objects
scene = PlanningSceneInterface()
# Create a scene publisher to push changes to the scene
self.scene_pub = rospy.Publisher('planning_scene', PlanningScene)
# Create a publisher for displaying gripper poses
self.gripper_pose_pub = rospy.Publisher('gripper_pose', PoseStamped)
# Create a dictionary to hold object colors
self.colors = dict()
# Initialize the move group for the right arm
right_arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the right gripper
right_gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Get the name of the end-effector link
end_effector_link = right_arm.get_end_effector_link()
# Allow some leeway in position (meters) and orientation (radians)
right_arm.set_goal_position_tolerance(0.05)
right_arm.set_goal_orientation_tolerance(0.1)
# Allow replanning to increase the odds of a solution
right_arm.allow_replanning(True)
# Set the right arm reference frame
right_arm.set_pose_reference_frame(REFERENCE_FRAME)
# Allow 10 seconds per planning attempt
right_arm.set_planning_time(10)
# Set a limit on the number of pick attempts before bailing
max_pick_attempts = 10
# Set a limit on the number of place attempts
max_place_attempts = 5
# Give the scene a chance to catch up
rospy.sleep(2)
# Give each of the scene objects a unique name
table_id = 'table'
box1_id = 'box1'
box2_id = 'box2'
target_id = 'target'
tool_id = 'tool'
# Remove leftover objects from a previous run
scene.remove_world_object(table_id)
scene.remove_world_object(box1_id)
scene.remove_world_object(box2_id)
scene.remove_world_object(target_id)
scene.remove_world_object(tool_id)
# Remove any attached objects from a previous session
scene.remove_attached_object(GRIPPER_FRAME, target_id)
# Give the scene a chance to catch up
rospy.sleep(1)
# Start the arm in the "resting" pose stored in the SRDF file
right_arm.set_named_target('right_start')
right_arm.go()
# Open the gripper to the neutral position
right_gripper.set_joint_value_target(GRIPPER_NEUTRAL)
right_gripper.go()
rospy.sleep(1)
# Set the height of the table off the ground
table_ground = 0.65
# Set the dimensions of the scene objects [l, w, h]
table_size = [0.2, 0.7, 0.01]
box1_size = [0.1, 0.05, 0.05]
box2_size = [0.05, 0.05, 0.15]
# Set the target size [l, w, h]
target_size = [0.02, 0.01, 0.12]
# Add a table top and two boxes to the scene
table_pose = PoseStamped()
table_pose.header.frame_id = REFERENCE_FRAME
table_pose.pose.position.x = 0.55
table_pose.pose.position.y = 0.0
table_pose.pose.position.z = table_ground + table_size[2] / 2.0
table_pose.pose.orientation.w = 1.0
scene.add_box(table_id, table_pose, table_size)
box1_pose = PoseStamped()
box1_pose.header.frame_id = REFERENCE_FRAME
box1_pose.pose.position.x = 0.55
box1_pose.pose.position.y = -0.1
box1_pose.pose.position.z = table_ground + table_size[2] + box1_size[2] / 2.0
box1_pose.pose.orientation.w = 1.0
scene.add_box(box1_id, box1_pose, box1_size)
box2_pose = PoseStamped()
box2_pose.header.frame_id = REFERENCE_FRAME
box2_pose.pose.position.x = 0.54
box2_pose.pose.position.y = 0.13
box2_pose.pose.position.z = table_ground + table_size[2] + box2_size[2] / 2.0
box2_pose.pose.orientation.w = 1.0
scene.add_box(box2_id, box2_pose, box2_size)
# Set the target pose in between the boxes and on the table
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = 0.60
target_pose.pose.position.y = 0.0
target_pose.pose.position.z = table_ground + table_size[2] + target_size[2] / 2.0
target_pose.pose.orientation.w = 1.0
# Add the target object to the scene
scene.add_box(target_id, target_pose, target_size)
# Make the table red and the boxes orange
self.setColor(table_id, 0.8, 0, 0, 1.0)
self.setColor(box1_id, 0.8, 0.4, 0, 1.0)
self.setColor(box2_id, 0.8, 0.4, 0, 1.0)
# Make the target yellow
self.setColor(target_id, 0.9, 0.9, 0, 1.0)
# Send the colors to the planning scene
self.sendColors()
# Set the support surface name to the table object
right_arm.set_support_surface_name(table_id)
# Specify a pose to place the target after being picked up
place_pose = PoseStamped()
place_pose.header.frame_id = REFERENCE_FRAME
place_pose.pose.position.x = 0.50
place_pose.pose.position.y = -0.25
place_pose.pose.position.z = table_ground + table_size[2] + target_size[2] / 2.0
place_pose.pose.orientation.w = 1.0
# Initialize the grasp pose to the target pose
grasp_pose = target_pose
# Shift the grasp pose by half the width of the target to center it
grasp_pose.pose.position.y -= target_size[1] / 2.0
# Generate a list of grasps
grasps = self.make_grasps(grasp_pose, [target_id])
# Publish the grasp poses so they can be viewed in RViz
for grasp in grasps:
self.gripper_pose_pub.publish(grasp.grasp_pose)
rospy.sleep(0.2)
# Track success/failure and number of attempts for pick operation
result = None
n_attempts = 0
# Repeat until we succeed or run out of attempts
while result != MoveItErrorCodes.SUCCESS and n_attempts < max_pick_attempts:
n_attempts += 1
rospy.loginfo("Pick attempt: " + str(n_attempts))
result = right_arm.pick(target_id, grasps)
rospy.sleep(0.2)
# If the pick was successful, attempt the place operation
if result == MoveItErrorCodes.SUCCESS:
result = None
n_attempts = 0
#_------------------------now we move to the other table__________-------------------------------------------
#_------------------------now we move to the other table__________-------------------------------------------
# Generate valid place poses
places = self.make_places(place_pose)
# Repeat until we succeed or run out of attempts
while result != MoveItErrorCodes.SUCCESS and n_attempts < max_place_attempts:
n_attempts += 1
rospy.loginfo("Place attempt: " + str(n_attempts))
for place in places:
result = right_arm.place(target_id, place)
if result == MoveItErrorCodes.SUCCESS:
break
rospy.sleep(0.2)
if result != MoveItErrorCodes.SUCCESS:
rospy.loginfo("Place operation failed after " + str(n_attempts) + " attempts.")
else:
rospy.loginfo("Pick operation failed after " + str(n_attempts) + " attempts.")
# Return the arm to the "resting" pose stored in the SRDF file
right_arm.set_named_target('right_start')
right_arm.go()
# Open the gripper to the neutral position
right_gripper.set_joint_value_target(GRIPPER_NEUTRAL)
right_gripper.go()
rospy.sleep(1)
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_demo')
# Use the planning scene object to add or remove objects
scene = PlanningSceneInterface()
# Create a scene publisher to push changes to the scene
self.scene_pub = rospy.Publisher('planning_scene',
PlanningScene,
queue_size=5)
# Create a publisher for displaying gripper poses
self.gripper_pose_pub = rospy.Publisher('gripper_pose',
PoseStamped,
queue_size=5)
# Create a dictionary to hold object colors
self.colors = dict()
# Initialize the move group for the arm
arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the gripper
gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Get the name of the end-effector link
end_effector_link = arm.get_end_effector_link()
# Allow some leeway in position (meters) and orientation (radians)
arm.set_goal_position_tolerance(0.05)
arm.set_goal_orientation_tolerance(0.1)
# Allow replanning to increase the odds of a solution
arm.allow_replanning(True)
# Set the right arm reference frame
arm.set_pose_reference_frame(REFERENCE_FRAME)
# Allow 5 seconds per planning attempt
arm.set_planning_time(5)
# Set a limit on the number of pick attempts before bailing
max_pick_attempts = 5
# Set a limit on the number of place attempts
max_place_attempts = 5
# Give the scene a chance to catch up
rospy.sleep(2)
# Give each of the scene objects a unique name
table_id = 'table'
box1_id = 'box1'
box2_id = 'box2'
target_id = 'target'
tool_id = 'tool'
# Remove leftover objects from a previous run
scene.remove_world_object(table_id)
scene.remove_world_object(box1_id)
scene.remove_world_object(box2_id)
scene.remove_world_object(target_id)
scene.remove_world_object(tool_id)
# Remove any attached objects from a previous session
scene.remove_attached_object(GRIPPER_FRAME, target_id)
# Give the scene a chance to catch up
rospy.sleep(1)
# Start the arm in the "grasp" pose stored in the SRDF file
arm.set_named_target('left_arm_up')
arm.go()
# Open the gripper to the neutral position
gripper.set_joint_value_target(GRIPPER_OPEN)
gripper.go()
rospy.sleep(1)
# Set the height of the table off the ground
table_ground = 0.04
# Set the dimensions of the scene objects [l, w, h]
table_size = [0.2, 0.7, 0.01]
box1_size = [0.1, 0.05, 0.05]
box2_size = [0.05, 0.05, 0.15]
# Set the target size [l, w, h]
target_size = [0.02, 0.01, 0.12]
# Add a table top and two boxes to the scene
table_pose = PoseStamped()
table_pose.header.frame_id = REFERENCE_FRAME
table_pose.pose.position.x = 0.25
table_pose.pose.position.y = 0.0
table_pose.pose.position.z = table_ground + table_size[2] / 2.0
table_pose.pose.orientation.w = 1.0
scene.add_box(table_id, table_pose, table_size)
box1_pose = PoseStamped()
box1_pose.header.frame_id = REFERENCE_FRAME
box1_pose.pose.position.x = 0.21
box1_pose.pose.position.y = -0.1
box1_pose.pose.position.z = table_ground + table_size[
2] + box1_size[2] / 2.0
box1_pose.pose.orientation.w = 1.0
#scene.add_box(box1_id, box1_pose, box1_size)
box2_pose = PoseStamped()
box2_pose.header.frame_id = REFERENCE_FRAME
box2_pose.pose.position.x = 0.19
box2_pose.pose.position.y = 0.13
box2_pose.pose.position.z = table_ground + table_size[
2] + box2_size[2] / 2.0
box2_pose.pose.orientation.w = 1.0
#scene.add_box(box2_id, box2_pose, box2_size)
# Set the target pose in between the boxes and on the table
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = 0.24
target_pose.pose.position.y = 0.275
target_pose.pose.position.z = table_ground + table_size[
2] + target_size[2] / 2.0
target_pose.pose.orientation.w = 1.0
# Add the target object to the scene
scene.add_box(target_id, target_pose, target_size)
# Make the table blue and the boxes orange
self.setColor(table_id, 0, 0, 0.8, 1.0)
self.setColor(box1_id, 0.8, 0.4, 0, 1.0)
self.setColor(box2_id, 0.8, 0.4, 0, 1.0)
# Make the target yellow
self.setColor(target_id, 0.9, 0.9, 0, 1.0)
# Send the colors to the planning scene
self.sendColors()
# Set the support surface name to the table object
arm.set_support_surface_name(table_id)
# Specify a pose to place the target after being picked up
place_pose = PoseStamped()
place_pose.header.frame_id = REFERENCE_FRAME
place_pose.pose.position.x = 0.18
place_pose.pose.position.y = 0
place_pose.pose.position.z = table_ground + table_size[
2] + target_size[2] / 2.0
place_pose.pose.orientation.w = 1.0
# Initialize the grasp pose to the target pose
grasp_pose = target_pose
# Shift the grasp pose by half the width of the target to center it
#grasp_pose.pose.position.y -= target_size[1] / 2.0
grasp_pose.pose.position.x = 0.12792118579 + .1
grasp_pose.pose.position.y = 0.285290879999 + 0.05
grasp_pose.pose.position.z = 0.120301181892
#grasp_pose.pose.orientation =
# Generate a list of grasps
grasps = self.make_grasps(grasp_pose, [target_id, table_id])
# Publish the grasp poses so they can be viewed in RViz
for grasp in grasps:
self.gripper_pose_pub.publish(grasp.grasp_pose)
rospy.sleep(0.2)
break
# Track success/failure and number of attempts for pick operation
result = None
n_attempts = 0
# Repeat until we succeed or run out of attempts
while result != MoveItErrorCodes.SUCCESS and n_attempts < max_pick_attempts:
n_attempts += 1
rospy.loginfo("Pick attempt: " + str(n_attempts))
result = arm.pick(target_id, grasps)
rospy.sleep(0.2)
# If the pick was successful, attempt the place operation
if result == MoveItErrorCodes.SUCCESS:
result = None
n_attempts = 0
# Generate valid place poses
places = self.make_places(place_pose)
# Repeat until we succeed or run out of attempts
while result != MoveItErrorCodes.SUCCESS and n_attempts < max_place_attempts:
n_attempts += 1
rospy.loginfo("Place attempt: " + str(n_attempts))
for place in places:
result = arm.place(target_id, place)
if result == MoveItErrorCodes.SUCCESS:
break
rospy.sleep(0.2)
if result != MoveItErrorCodes.SUCCESS:
rospy.loginfo("Place operation failed after " +
str(n_attempts) + " attempts.")
else:
# Return the arm to the "resting" pose stored in the SRDF file
arm.set_named_target('left_arm_rest')
arm.go()
# Open the gripper to the open position
gripper.set_joint_value_target(GRIPPER_OPEN)
gripper.go()
else:
rospy.loginfo("Pick operation failed after " + str(n_attempts) +
" attempts.")
rospy.sleep(1)
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
while rospy.get_time() == 0.0: pass
### Create a handle for the Planning Scene Interface
psi = PlanningSceneInterface()
rospy.sleep(1.0)
### Create a handle for the Move Group Commander
mgc = MoveGroupCommander("arm")
rospy.sleep(1.0)
### Add virtual obstacle
pose = gen_pose(pos=[-0.2, -0.1, 1.2])
psi.add_box("box", pose, size=(0.15, 0.15, 0.6))
rospy.sleep(1.0)
### Move to stored joint position
mgc.set_named_target("left")
mgc.go()
### Move to Cartesian position
goal_pose = gen_pose(pos=[0.123, -0.417, 1.361], euler=[3.1415, 0.0, 1.5707])
mgc.go(goal_pose.pose)
### Move Cartesian linear
goal_pose.pose.position.z -= 0.1
(traj,frac) = mgc.compute_cartesian_path([goal_pose.pose], 0.01, 4, True)
mgc.execute(traj)
print "Done"
def __init__(self):
# 初始化move_group的API
moveit_commander.roscpp_initialize(sys.argv)
# 初始化ROS节点
rospy.init_node('moveit_pick_and_place_demo')
# 初始化场景对象
scene = PlanningSceneInterface()
# 创建一个发布场景变化信息的发布者
self.scene_pub = rospy.Publisher('planning_scene',
PlanningScene,
queue_size=10)
# 创建一个发布抓取姿态的发布者
self.gripper_pose_pub = rospy.Publisher('gripper_pose',
PoseStamped,
queue_size=10)
# 创建一个存储物体颜色的字典对象
self.colors = dict()
# 初始化需要使用move group控制的机械臂中的arm group
arm = MoveGroupCommander(GROUP_NAME_ARM)
# 初始化需要使用move group控制的机械臂中的gripper group
gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# 获取终端link的名称
end_effector_link = arm.get_end_effector_link()
# 设置位置(单位：米)和姿态（单位：弧度）的允许误差
arm.set_goal_position_tolerance(0.05)
arm.set_goal_orientation_tolerance(0.1)
# 当运动规划失败后，允许重新规划
arm.allow_replanning(True)
# 设置目标位置所使用的参考坐标系
arm.set_pose_reference_frame(REFERENCE_FRAME)
# 设置每次运动规划的时间限制：5s
arm.set_planning_time(5)
# 设置pick和place阶段的最大尝试次数
max_pick_attempts = 5
max_place_attempts = 5
rospy.sleep(2)
# 设置场景物体的名称
table_id = 'table'
box1_id = 'box1'
box2_id = 'box2'
target_id = 'target'
# 移除场景中之前运行残留的物体
scene.remove_world_object(table_id)
scene.remove_world_object(box1_id)
scene.remove_world_object(box2_id)
scene.remove_world_object(target_id)
# 移除场景中之前与机器臂绑定的物体
scene.remove_attached_object(GRIPPER_FRAME, target_id)
rospy.sleep(1)
# 控制机械臂先回到初始化位置
arm.set_named_target('home')
arm.go()
# 控制夹爪张开
gripper.set_joint_value_target(GRIPPER_OPEN)
gripper.go()
rospy.sleep(1)
# 设置桌面的高度
table_ground = 0.2
# 设置table、box1和box2的三维尺寸[长, 宽, 高]
table_size = [0.2, 0.7, 0.01]
box1_size = [0.1, 0.05, 0.05]
box2_size = [0.05, 0.05, 0.15]
# 将三个物体加入场景当中
table_pose = PoseStamped()
table_pose.header.frame_id = REFERENCE_FRAME
table_pose.pose.position.x = 0.35
table_pose.pose.position.y = 0.0
table_pose.pose.position.z = table_ground + table_size[2] / 2.0
table_pose.pose.orientation.w = 1.0
scene.add_box(table_id, table_pose, table_size)
box1_pose = PoseStamped()
box1_pose.header.frame_id = REFERENCE_FRAME
box1_pose.pose.position.x = 0.31
box1_pose.pose.position.y = -0.1
box1_pose.pose.position.z = table_ground + table_size[
2] + box1_size[2] / 2.0
box1_pose.pose.orientation.w = 1.0
scene.add_box(box1_id, box1_pose, box1_size)
box2_pose = PoseStamped()
box2_pose.header.frame_id = REFERENCE_FRAME
box2_pose.pose.position.x = 0.29
box2_pose.pose.position.y = -0.4
box2_pose.pose.position.z = table_ground + table_size[
2] + box2_size[2] / 2.0
box2_pose.pose.orientation.w = 1.0
scene.add_box(box2_id, box2_pose, box2_size)
# 将桌子设置成红色，两个box设置成橙色
self.setColor(table_id, 0.8, 0, 0, 1.0)
self.setColor(box1_id, 0.8, 0.4, 0, 1.0)
self.setColor(box2_id, 0.8, 0.4, 0, 1.0)
# 设置目标物体的尺寸
target_size = [0.04, 0.04, 0.05]
# 设置目标物体的位置，位于桌面之上两个盒子之间
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = 0.32
target_pose.pose.position.y = 0.0
target_pose.pose.position.z = table_ground + table_size[
2] + target_size[2] / 2.0
target_pose.pose.orientation.w = 1.0
# 将抓取的目标物体加入场景中
scene.add_box(target_id, target_pose, target_size)
# 将目标物体设置为黄色
self.setColor(target_id, 0.9, 0.9, 0, 1.0)
# 将场景中的颜色设置发布
self.sendColors()
# 设置支持的外观
arm.set_support_surface_name(table_id)
# 设置一个place阶段需要放置物体的目标位置
place_pose = PoseStamped()
place_pose.header.frame_id = REFERENCE_FRAME
place_pose.pose.position.x = 0.32
place_pose.pose.position.y = -0.2
place_pose.pose.position.z = table_ground + table_size[
2] + target_size[2] / 2.0
place_pose.pose.orientation.w = 1.0
# 将目标位置设置为机器人的抓取目标位置
grasp_pose = target_pose
# 生成抓取姿态
grasps = self.make_grasps(grasp_pose, [target_id])
# 将抓取姿态发布，可以在rviz中显示
for grasp in grasps:
self.gripper_pose_pub.publish(grasp.grasp_pose)
rospy.sleep(0.2)
# 追踪抓取成功与否，以及抓取的尝试次数
result = None
n_attempts = 0
# 重复尝试抓取，直道成功或者超多最大尝试次数
while result != MoveItErrorCodes.SUCCESS and n_attempts < max_pick_attempts:
n_attempts += 1
rospy.loginfo("Pick attempt: " + str(n_attempts))
result = arm.pick(target_id, grasps)
rospy.sleep(0.2)
# 如果pick成功，则进入place阶段
if result == MoveItErrorCodes.SUCCESS:
result = None
n_attempts = 0
# 生成放置姿态
places = self.make_places(place_pose)
# 重复尝试放置，直道成功或者超多最大尝试次数
while result != MoveItErrorCodes.SUCCESS and n_attempts < max_place_attempts:
n_attempts += 1
rospy.loginfo("Place attempt: " + str(n_attempts))
for place in places:
result = arm.place(target_id, place)
if result == MoveItErrorCodes.SUCCESS:
break
rospy.sleep(0.2)
if result != MoveItErrorCodes.SUCCESS:
rospy.loginfo("Place operation failed after " +
str(n_attempts) + " attempts.")
else:
rospy.loginfo("Pick operation failed after " + str(n_attempts) +
" attempts.")
# 控制机械臂回到初始化位置
arm.set_named_target('home')
arm.go()
# 控制夹爪回到张开的状态
gripper.set_joint_value_target(GRIPPER_OPEN)
gripper.go()
rospy.sleep(1)
# 关闭并退出moveit
moveit_commander.roscpp_shutdown()
moveit_commander.os._exit(0)
def __init__(self):
# Initialize the move_group API
moveit_commander.roscpp_initialize(sys.argv)
rospy.init_node('moveit_obstacles_demo')
# Construct the initial scene object
scene = PlanningSceneInterface()
# Create a scene publisher to push changes to the scene
self.scene_pub = rospy.Publisher('planning_scene', PlanningScene, queue_size=5)
# Create a dictionary to hold object colors
self.colors = dict()
# Pause for the scene to get ready
rospy.sleep(1)
# Initialize the move group for the right arm
arm = MoveGroupCommander(GROUP_NAME_ARM)
# Get the name of the end-effector link
end_effector_link = arm.get_end_effector_link()
# Allow some leeway in position (meters) and orientation (radians)
arm.set_goal_position_tolerance(0.01)
arm.set_goal_orientation_tolerance(0.05)
# Allow replanning to increase the odds of a solution
arm.allow_replanning(True)
# Set the right arm reference frame accordingly
arm.set_pose_reference_frame(REFERENCE_FRAME)
# Allow 5 seconds per planning attempt
arm.set_planning_time(5)
# Give each of the scene objects a unique name
table_id = 'table'
box1_id = 'box1'
box2_id = 'box2'
# Remove leftover objects from a previous run
scene.remove_world_object(table_id)
scene.remove_world_object(box1_id)
scene.remove_world_object(box2_id)
# Give the scene a chance to catch up
rospy.sleep(1)
# Start the arm in the "resting" pose stored in the SRDF file
arm.set_named_target('l_arm_init')
arm.go()
rospy.sleep(2)
# Set the height of the table off the ground
table_ground = 0.65
# Set the length, width and height of the table and boxes
table_size = [0.2, 0.7, 0.01]
box1_size = [0.1, 0.05, 0.05]
box2_size = [0.05, 0.05, 0.15]
# Add a table top and two boxes to the scene
table_pose = PoseStamped()
table_pose.header.frame_id = REFERENCE_FRAME
table_pose.pose.position.x = 0.35
table_pose.pose.position.y = 0.0
table_pose.pose.position.z = table_ground + table_size[2] / 2.0
table_pose.pose.orientation.w = 1.0
scene.add_box(table_id, table_pose, table_size)
box1_pose = PoseStamped()
box1_pose.header.frame_id = REFERENCE_FRAME
box1_pose.pose.position.x = 0.3
box1_pose.pose.position.y = 0
box1_pose.pose.position.z = table_ground + table_size[2] + box1_size[2] / 2.0
box1_pose.pose.orientation.w = 1.0
scene.add_box(box1_id, box1_pose, box1_size)
box2_pose = PoseStamped()
box2_pose.header.frame_id = REFERENCE_FRAME
box2_pose.pose.position.x = 0.3
box2_pose.pose.position.y = 0.25
box2_pose.pose.position.z = table_ground + table_size[2] + box2_size[2] / 2.0
box2_pose.pose.orientation.w = 1.0
scene.add_box(box2_id, box2_pose, box2_size)
# Make the table red and the boxes orange
self.setColor(table_id, 0.8, 0, 0, 1.0)
self.setColor(box1_id, 0.8, 0.4, 0, 1.0)
self.setColor(box2_id, 0.8, 0.4, 0, 1.0)
# Send the colors to the planning scene
self.sendColors()
# Set the target pose in between the boxes and above the table
target_pose = PoseStamped()
target_pose.header.frame_id = REFERENCE_FRAME
target_pose.pose.position.x = 0.22
target_pose.pose.position.y = 0.14
target_pose.pose.position.z = table_pose.pose.position.z + table_size[2] + 0.05
q = quaternion_from_euler(0, 0, -1.57079633)
target_pose.pose.orientation.x = q[0]
target_pose.pose.orientation.y = q[1]
target_pose.pose.orientation.z = q[2]
target_pose.pose.orientation.w = q[3]
# Set the target pose for the arm
arm.set_pose_target(target_pose, end_effector_link)
# Move the arm to the target pose (if possible)
arm.go()
# Pause for a moment...
rospy.sleep(2)
# Return the arm to the "resting" pose stored in the SRDF file
arm.set_named_target('l_arm_init')
arm.go()
# Exit MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)
class ArmTracker:
def __init__(self):
rospy.init_node('arm_tracker')
rospy.on_shutdown(self.shutdown)
# Maximum distance of the target before the arm will lower
self.max_target_dist = 1.2
# Arm length to center of gripper frame
self.arm_length = 0.4
# Distance between the last target and the new target before we move the arm
self.last_target_threshold = 0.01
# Distance between target and end-effector before we move the arm
self.target_ee_threshold = 0.025
# Initialize the move group for the left arm
self.left_arm = MoveGroupCommander(GROUP_NAME_ARM)
# Initialize the move group for the left gripper
left_gripper = MoveGroupCommander(GROUP_NAME_GRIPPER)
# Set the reference frame for pose targets
self.reference_frame = REFERENCE_FRAME
# Keep track of the last target pose
self.last_target_pose = PoseStamped()
# Set the left arm reference frame accordingly
self.left_arm.set_pose_reference_frame(self.reference_frame)
# Allow replanning to increase the chances of a solution
self.left_arm.allow_replanning(False)
# Set a position tolerance in meters
self.left_arm.set_goal_position_tolerance(0.05)
# Set an orientation tolerance in radians
self.left_arm.set_goal_orientation_tolerance(0.2)
# What is the end effector link?
self.ee_link = self.left_arm.get_end_effector_link()
# Create the transform listener
self.listener = tf.TransformListener()
# Queue up some tf data...
rospy.sleep(3)
# Set the gripper target to closed position using a joint value target
left_gripper.set_joint_value_target(GRIPPER_CLOSED)
# Plan and execute the gripper motion
left_gripper.go()
rospy.sleep(1)
# Subscribe to the target topic
rospy.wait_for_message('/target_pose', PoseStamped)
# Use queue_size=1 so we don't pile up outdated target messages
self.target_subscriber = rospy.Subscriber('/target_pose',
PoseStamped,
self.update_target_pose,
queue_size=1)
rospy.loginfo("Ready for action!")
while not rospy.is_shutdown():
try:
target = self.target
except:
rospy.sleep(0.5)
continue
# Timestamp the target with the current time
target.header.stamp = rospy.Time()
# Get the target pose in the left_arm shoulder lift frame
#target_arm = self.listener.transformPose('left_arm_shoulder_pan_link', target)
target_arm = self.listener.transformPose('left_rotate', target)
# Convert the position values to a Python list
p0 = [
target_arm.pose.position.x, target_arm.pose.position.y,
target_arm.pose.position.z
]
# Compute the distance between the target and the shoulder link
dist_target_shoulder = euclidean(p0, [0, 0, 0])
# If the target is too far away, then lower the arm
if dist_target_shoulder > self.max_target_dist:
rospy.loginfo("Target is too far away")
self.left_arm.set_named_target('l_start')
self.left_arm.go()
rospy.sleep(1)
continue
# Transform the pose to the base reference frame
target_base = self.listener.transformPose(self.reference_frame,
target)
# Compute the distance between the current target and the last target
p1 = [
target_base.pose.position.x, target_base.pose.position.y,
target_base.pose.position.z
]
p2 = [
self.last_target_pose.pose.position.x,
self.last_target_pose.pose.position.y,
self.last_target_pose.pose.position.z
]
dist_last_target = euclidean(p1, p2)
# Move the arm only if we are far enough away from the previous target
if dist_last_target < self.last_target_threshold:
rospy.loginfo("Still close to last target")
rospy.sleep(0.5)
continue
# Get the pose of the end effector in the base reference frame
ee_pose = self.left_arm.get_current_pose(self.ee_link)
# Convert the position values to a Python list
p3 = [
ee_pose.pose.position.x, ee_pose.pose.position.y,
ee_pose.pose.position.z
]
# Compute the distance between the target and the end-effector
dist_target = euclidean(p1, p3)
# Only move the arm if we are far enough away from the target
if dist_target < self.target_ee_threshold:
rospy.loginfo("Already close enough to target")
rospy.sleep(1)
continue
# We want the gripper somewhere on the line connecting the shoulder and the target.
# Using a parametric form of the line, the parameter ranges from 0 to the
# minimum of the arm length and the distance to the target.
t_max = min(self.arm_length, dist_target_shoulder)
# Bring it back 10% so we don't collide with the target
t = 0.9 * t_max
# Now compute the target positions from the parameter
try:
target_arm.pose.position.x *= (t / dist_target_shoulder)
target_arm.pose.position.y *= (t / dist_target_shoulder)
target_arm.pose.position.z *= (t / dist_target_shoulder)
except:
rospy.sleep(1)
rospy.loginfo("Exception!")
continue
# Transform to the base_footprint frame
target_ee = self.listener.transformPose(self.reference_frame,
target_arm)
# Set the target gripper orientation to be horizontal
target_ee.pose.orientation.x = 0
target_ee.pose.orientation.y = 0
target_ee.pose.orientation.z = 0
target_ee.pose.orientation.w = 1
# Update the current start state
self.left_arm.set_start_state_to_current_state()
# Set the target pose for the end-effector
self.left_arm.set_pose_target(target_ee, self.ee_link)
# Plan and execute the trajectory
success = self.left_arm.go()
if success:
# Store the current target as the last target
self.last_target_pose = target
# Pause a bit between motions to keep from locking up
rospy.sleep(0.5)
def update_target_pose(self, target):
self.target = target
def relax_all_servos(self):
command = 'rosrun rbx2_dynamixels arbotix_relax_all_servos.py'
args = shlex.split(command)
subprocess.Popen(args)
def shutdown(self):
# Stop any further target messages from being processed
self.target_subscriber.unregister()
# Stop any current arm movement
self.left_arm.stop()
# Move to the r_start position
self.left_arm.set_named_target('r_start')
self.left_arm.go()
# Relax the servos
self.relax_all_servos()
os._exit(0)
def __init__(self, script_path):
rospy.init_node('show_time')
rospy.on_shutdown(self.cleanup)
# Initialize a number of parameters and variables for nav locations
# Use the planning scene object to add or remove objects
scene = PlanningSceneInterface()
# Create a scene publisher to push changes to the scene
self.scene_pub = rospy.Publisher('planning_scene', PlanningScene)
# Initialize the move group for the arms
right_arm = MoveGroupCommander('right_arm')
left_arm = MoveGroupCommander('left_arm')
right_gripper = MoveGroupCommander('right_gripper')
left_gripper = MoveGroupCommander('left_gripper')
# Set the default TTS voice to use
self.voice = rospy.get_param("~voice", "voice_don_diphone")
self.robot = rospy.get_param("~robot", "robbie")
self.start =(Pose(Point(1.7, 0, 0.0), Quaternion(0.0, 0.0, 1.000, 0.018)))
self.left =(Pose(Point(1.960, -1.854, 0.0), Quaternion(0.0, 0.0, 0.916, 0.401)))
self.right =(Pose(Point(2.123, 1.592, 0.0), Quaternion(0.0, 0.0, 0.877, -0.480)))
self.auto_dock =(Pose(Point(0.5, 0, 0.0), Quaternion(0.0, 0.0, 0.002, 1.000)))
self.client = SimpleActionClient("move_base", MoveBaseAction)
self.client.wait_for_server()
# Create the sound client object
self.soundhandle = SoundClient()
# Wait a moment to let the client connect to the
# sound_play server
rospy.sleep(2)
# Make sure any lingering sound_play processes are stopped.
self.soundhandle.stopAll()
# Set the wave file path if used
self.wavepath = rospy.get_param("~wavepath", script_path + "/../sounds")
#define afternoon and morning
self.noon = strftime("%p:", localtime())
if self.noon == "AM:":
self.noon1 = "Goood Morning "
else:
self.noon1 ="Good After Noon "
self.local = strftime("%H:%M:", localtime())
#local time
self.local = strftime("%H:%M:", localtime())
self.soundhandle.say(self.noon1 + self.robot +" is on line" + " the time is " + self.local, self.voice)
right_arm.set_named_target('r_travel')
right_arm.go()
left_arm.set_named_target('l_travel')
left_arm.go()
rospy.sleep(5)
self.move_to(self.start)
self.soundhandle.say("Welcome to SHOW time. This is where I get to demonstrate my capabilities" , self.voice)
rospy.sleep(6)
self.soundhandle.say("I can move to my left", self.voice)
rospy.sleep(2)
self.move_to(self.left)
self.soundhandle.say("now back to the start position", self.voice)
rospy.sleep(2)
self.move_to(self.start)
self.soundhandle.say("I can move to my right", self.voice)
rospy.sleep(2)
self.move_to(self.right)
self.soundhandle.say("And again back to the start position", self.voice)
rospy.sleep(2)
self.move_to(self.start)
self.soundhandle.say("I once caught a fish this big", self.voice)
right_arm.set_named_target('r_fish')
right_arm.go()
left_arm.set_named_target('l_fish')
left_arm.go()
#rospy.sleep(2)
self.soundhandle.say("Thank you for your time ", self.voice)
right_arm.set_named_target('right_start')
right_arm.go()
left_arm.set_named_target('left_start')
left_arm.go()
#rospy.sleep(2)
#rospy.sleep(2)
self.move_to(self.auto_dock)
# add auto dock sequence here
# Shut down MoveIt cleanly
moveit_commander.roscpp_shutdown()
# Exit the script
moveit_commander.os._exit(0)