@ -92,12 +92,14 @@ class SimpleCommandGroup:
bool
False if commanded goal invalid , else True
"""
# TODO: validate commanded_joint_names and all arrays in JointTrajectoryPoint (positions/velocities/etc) are same size
self . goal = { " position " : None }
self . goal = { " position " : None , " velocity " : None , " acceleration " : None , " contact_threshold " : None }
if self . active :
self . goal [ ' position ' ] = point . positions [ self . index ]
self . goal [ ' position ' ] = point . positions [ self . index ] if len ( point . positions ) > self . index else None
self . goal [ ' velocity ' ] = point . velocities [ self . index ] if len ( point . velocities ) > self . index else None
self . goal [ ' acceleration ' ] = point . accelerations [ self . index ] if len ( point . accelerations ) > self . index else None
self . goal [ ' contact_threshold ' ] = point . effort [ self . index ] if len ( point . effort ) > self . index else None
if self . goal [ ' position ' ] is None :
err_str = ' Received goal point that is out of bounds. The first error that was caught is that the {0} goal is invalid ({1} = {2}). ' . format ( self . name , self . name , self . goal [ ' position ' ] )
err_str = " Received goal point with positions array length={0}. This joint ({1}) ' s index is {2}. Length of array must cover all joints listed in commanded_joint_names. " . format ( len ( point . positions ) , self . name , self . index )
invalid_goal_callback ( err_str )
return False
@ -161,7 +163,7 @@ class HeadPanCommandGroup(SimpleCommandGroup):
def init_execution ( self , robot , robot_status , * * kwargs ) :
if self . active :
pan_error = self . update_execution ( robot_status , backlash_state = kwargs [ ' backlash_state ' ] )
robot . head . move_by ( ' head_pan ' , pan_error )
robot . head . move_by ( ' head_pan ' , pan_error , v_r = self . goal [ ' velocity ' ] , a_r = self . goal [ ' acceleration ' ] )
if pan_error > 0.0 :
kwargs [ ' backlash_state ' ] [ ' head_pan_looked_left ' ] = True
else :
@ -195,7 +197,7 @@ class HeadTiltCommandGroup(SimpleCommandGroup):
def init_execution ( self , robot , robot_status , * * kwargs ) :
if self . active :
tilt_error = self . update_execution ( robot_status , backlash_state = kwargs [ ' backlash_state ' ] )
robot . head . move_by ( ' head_tilt ' , tilt_error )
robot . head . move_by ( ' head_tilt ' , tilt_error , v_r = self . goal [ ' velocity ' ] , a_r = self . goal [ ' acceleration ' ] )
if tilt_error > ( self . head_tilt_backlash_transition_angle + self . head_tilt_calibrated_offset ) :
kwargs [ ' backlash_state ' ] [ ' head_tilt_looking_up ' ] = True
else :
@ -223,7 +225,7 @@ class WristYawCommandGroup(SimpleCommandGroup):
def init_execution ( self , robot , robot_status , * * kwargs ) :
if self . active :
robot . end_of_arm . move_by ( ' wrist_yaw ' , self . update_execution ( robot_status ) )
robot . end_of_arm . move_by ( ' wrist_yaw ' , self . update_execution ( robot_status ) , v_r = self . goal [ ' velocity ' ] , a_r = self . goal [ ' acceleration ' ] )
def update_execution ( self , robot_status , * * kwargs ) :
self . error = None
@ -267,7 +269,7 @@ class GripperCommandGroup(SimpleCommandGroup):
gripper_robotis_error = self . gripper_conversion . aperture_to_robotis ( gripper_error )
elif ( self . name == ' joint_gripper_finger_left ' ) or ( self . name == ' joint_gripper_finger_right ' ) :
gripper_robotis_error = self . gripper_conversion . finger_to_robotis ( gripper_error )
robot . end_of_arm . move_by ( ' stretch_gripper ' , gripper_robotis_error )
robot . end_of_arm . move_by ( ' stretch_gripper ' , gripper_robotis_error , v_r = self . goal [ ' velocity ' ] , a_r = self . goal [ ' acceleration ' ] )
def update_execution ( self , robot_status , * * kwargs ) :
self . error = None
@ -330,13 +332,21 @@ class TelescopingCommandGroup(SimpleCommandGroup):
return True
def set_goal ( self , point , invalid_goal_callback , * * kwargs ) :
self . goal = { " position " : None }
self . goal = { " position " : None , " velocity " : None , " acceleration " : None , " contact_threshold " : None }
if self . active :
self . goal [ ' position ' ] = sum ( [ point . positions [ i ] for i in self . index ] ) \
if self . is_telescoping else point . positions [ self . index ]
if self . is_telescoping :
self . goal [ ' position ' ] = sum ( [ point . positions [ i ] for i in self . index ] ) if len ( point . positions ) > max ( self . index ) else None
self . goal [ ' velocity ' ] = point . velocities [ self . index [ 0 ] ] if len ( point . velocities ) > self . index [ 0 ] else None
self . goal [ ' acceleration ' ] = point . accelerations [ self . index [ 0 ] ] if len ( point . accelerations ) > self . index [ 0 ] else None
self . goal [ ' contact_threshold ' ] = point . effort [ self . index [ 0 ] ] if len ( point . effort ) > self . index [ 0 ] else None
else :
self . goal [ ' position ' ] = point . positions [ self . index ] if len ( point . positions ) > self . index else None
self . goal [ ' velocity ' ] = point . velocities [ self . index ] if len ( point . velocities ) > self . index else None
self . goal [ ' acceleration ' ] = point . accelerations [ self . index ] if len ( point . accelerations ) > self . index else None
self . goal [ ' contact_threshold ' ] = point . effort [ self . index ] if len ( point . effort ) > self . index else None
if self . goal [ ' position ' ] is None :
err_str = ' Received extension goal point that is out of bounds. \
Goal point = { 0 } . ' .format(self.goal[ ' position ' ])
err_str = " Received goal point with positions array length={0}. This joint ({1}) ' s index is {2}. Length of array must cover all joints listed in commanded_joint_names. " . format ( len ( point . positions ) , self . name , self . index )
invalid_goal_callback ( err_str )
return False
@ -345,7 +355,11 @@ class TelescopingCommandGroup(SimpleCommandGroup):
def init_execution ( self , robot , robot_status , * * kwargs ) :
if self . active :
extension_error_m = self . update_execution ( robot_status , backlash_state = kwargs [ ' backlash_state ' ] )
robot . arm . move_by ( extension_error_m )
robot . arm . move_by ( extension_error_m ,
v_m = self . goal [ ' velocity ' ] ,
a_m = self . goal [ ' acceleration ' ] ,
contact_thresh_pos_N = self . goal [ ' contact_threshold ' ] ,
contact_thresh_neg_N = - self . goal [ ' contact_threshold ' ] if self . goal [ ' contact_threshold ' ] is not None else None )
if extension_error_m < 0.0 :
kwargs [ ' backlash_state ' ] [ ' wrist_extension_retracted ' ] = True
else :
@ -372,7 +386,11 @@ class LiftCommandGroup(SimpleCommandGroup):
def init_execution ( self , robot , robot_status , * * kwargs ) :
if self . active :
robot . lift . move_by ( self . update_execution ( robot_status ) )
robot . lift . move_by ( self . update_execution ( robot_status ) ,
v_m = self . goal [ ' velocity ' ] ,
a_m = self . goal [ ' acceleration ' ] ,
contact_thresh_pos_N = self . goal [ ' contact_threshold ' ] ,
contact_thresh_neg_N = - self . goal [ ' contact_threshold ' ] if self . goal [ ' contact_threshold ' ] is not None else None )
def update_execution ( self , robot_status , * * kwargs ) :
self . error = None
@ -448,18 +466,29 @@ class MobileBaseCommandGroup(SimpleCommandGroup):
return True
def set_goal ( self , point , invalid_goal_callback , * * kwargs ) :
self . goal = { " position " : None }
self . goal_translate_mobile_base = { " position " : None }
self . goal_rotate_mobile_base = { " position " : None }
self . goal = { " position " : None , " velocity " : None , " acceleration " : None , " contact_threshold " : None }
self . goal_translate_mobile_base = { " position " : None , " velocity " : None , " acceleration " : None , " contact_threshold " : None }
self . goal_rotate_mobile_base = { " position " : None , " velocity " : None , " acceleration " : None , " contact_threshold " : None }
if self . active :
if self . active_translate_mobile_base or self . active_rotate_mobile_base :
if len ( point . positions ) < = self . index_translate_mobile_base and len ( point . positions ) < = self . index_rotate_mobile_base :
err_str = " Received goal point with positions array length={0}. These joints ({1}) ' s indices are {2} & {3} respectively. Length of array must cover all joints listed in commanded_joint_names. " . format ( len ( point . positions ) , self . incrementing_joint_names , self . index_translate_mobile_base , self . index_rotate_mobile_base )
invalid_goal_callback ( err_str )
return False
if self . active_translate_mobile_base and \
not np . isclose ( point . positions [ self . index_translate_mobile_base ] , 0.0 , rtol = 1e-5 , atol = 1e-8 , equal_nan = False ) :
self . goal_translate_mobile_base [ ' position ' ] = point . positions [ self . index_translate_mobile_base ]
self . goal_translate_mobile_base [ ' velocity ' ] = point . velocities [ self . index_translate_mobile_base ] if len ( point . velocities ) > self . index_translate_mobile_base else None
self . goal_translate_mobile_base [ ' acceleration ' ] = point . accelerations [ self . index_translate_mobile_base ] if len ( point . accelerations ) > self . index_translate_mobile_base else None
self . goal_translate_mobile_base [ ' contact_threshold ' ] = point . effort [ self . index_translate_mobile_base ] if len ( point . effort ) > self . index_translate_mobile_base else None
if self . active_rotate_mobile_base and \
not np . isclose ( point . positions [ self . index_rotate_mobile_base ] , 0.0 , rtol = 1e-5 , atol = 1e-8 , equal_nan = False ) :
self . goal_rotate_mobile_base [ ' position ' ] = point . positions [ self . index_rotate_mobile_base ]
self . goal_rotate_mobile_base [ ' velocity ' ] = point . velocities [ self . index_rotate_mobile_base ] if len ( point . velocities ) > self . index_rotate_mobile_base else None
self . goal_rotate_mobile_base [ ' acceleration ' ] = point . accelerations [ self . index_rotate_mobile_base ] if len ( point . accelerations ) > self . index_rotate_mobile_base else None
self . goal_rotate_mobile_base [ ' contact_threshold ' ] = point . effort [ self . index_rotate_mobile_base ] if len ( point . effort ) > self . index_rotate_mobile_base else None
if ( self . goal_translate_mobile_base [ ' position ' ] is not None ) and \
( self . goal_rotate_mobile_base [ ' position ' ] is not None ) :
@ -470,7 +499,16 @@ class MobileBaseCommandGroup(SimpleCommandGroup):
invalid_goal_callback ( err_str )
return False
else :
self . goal [ ' position ' ] = self . ros_to_mechaduino ( point . positions [ self . index ] , kwargs [ ' manipulation_origin ' ] )
goal_pos = point . positions [ self . index ] if len ( point . positions ) > self . index else None
if goal_pos is None :
err_str = " Received goal point with positions array length={0}. This joint ({1}) ' s index is {2}. Length of array must cover all joints listed in commanded_joint_names. " . format ( len ( point . positions ) , self . name , self . index )
invalid_goal_callback ( err_str )
return False
self . goal [ ' position ' ] = self . ros_to_mechaduino ( goal_pos , kwargs [ ' manipulation_origin ' ] )
self . goal [ ' velocity ' ] = point . velocities [ self . index ] if len ( point . velocities ) > self . index else None
self . goal [ ' acceleration ' ] = point . accelerations [ self . index ] if len ( point . accelerations ) > self . index else None
self . goal [ ' contact_threshold ' ] = point . effort [ self . index ] if len ( point . effort ) > self . index else None
if self . goal [ ' position ' ] is None :
err_str = ' Received {0} goal point that is out of bounds. \
Range = { 1 } , but goal point = { 2 } . ' .format(self.name, self.range, self.goal[ ' position ' ])
@ -493,11 +531,20 @@ class MobileBaseCommandGroup(SimpleCommandGroup):
if self . active_translate_mobile_base or self . active_rotate_mobile_base :
mobile_base_error_m , mobile_base_error_rad = self . update_execution ( robot_status )
if mobile_base_error_m is not None :
robot . base . translate_by ( mobile_base_error_m )
robot . base . translate_by ( mobile_base_error_m ,
v_m = self . goal_translate_mobile_base [ ' velocity ' ] ,
a_m = self . goal_translate_mobile_base [ ' acceleration ' ] ,
contact_thresh_N = self . goal_translate_mobile_base [ ' contact_threshold ' ] )
elif mobile_base_error_rad is not None :
robot . base . rotate_by ( mobile_base_error_rad )
robot . base . rotate_by ( mobile_base_error_rad ,
v_r = self . goal_rotate_mobile_base [ ' velocity ' ] ,
a_r = self . goal_rotate_mobile_base [ ' acceleration ' ] ,
contact_thresh_N = self . goal_rotate_mobile_base [ ' contact_threshold ' ] )
else :
robot . base . translate_by ( self . update_execution ( robot_status ) )
robot . base . translate_by ( self . update_execution ( robot_status ) ,
v_m = self . goal [ ' velocity ' ] ,
a_m = self . goal [ ' acceleration ' ] ,
contact_thresh_N = self . goal [ ' contact_threshold ' ] )
def update_execution ( self , robot_status , * * kwargs ) :
currx = robot_status [ ' base ' ] [ ' x ' ]