moveit_task_constructor/demo/scripts/cartesian.py
Gauthier Hentz 7384702448
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Allow max Cartesian link speed in PlannerInterface (#277)
2025-09-10 14:30:26 +02:00

78 lines
2.0 KiB
Python
Executable File

#! /usr/bin/env python3
# -*- coding: utf-8 -*-
from std_msgs.msg import Header
from geometry_msgs.msg import TwistStamped, Twist, Vector3Stamped, Vector3
from moveit.task_constructor import core, stages
from math import pi
import time
from py_binding_tools import roscpp_init
roscpp_init("mtc_tutorial")
# [cartesianTut1]
group = "panda_arm"
# [cartesianTut1]
# [cartesianTut2]
# Cartesian and joint-space interpolation planners
cartesian = core.CartesianPath()
cartesian.max_cartesian_speed = 0.1 # m/s
cartesian.cartesian_speed_limited_link = "panda_hand"
jointspace = core.JointInterpolationPlanner()
# [cartesianTut2]
# [cartesianTut3]
task = core.Task()
task.name = "cartesian"
# start from current robot state
task.add(stages.CurrentState("current state"))
# [cartesianTut3]
# [initAndConfigMoveRelative]
# move along x
move = stages.MoveRelative("x +0.2", cartesian)
move.group = group
header = Header(frame_id="world")
move.setDirection(Vector3Stamped(header=header, vector=Vector3(0.2, 0, 0)))
task.add(move)
# [initAndConfigMoveRelative]
# [cartesianTut4]
# move along y
move = stages.MoveRelative("y -0.3", cartesian)
move.group = group
move.setDirection(Vector3Stamped(header=header, vector=Vector3(0, -0.3, 0)))
task.add(move)
# [cartesianTut4]
# [cartesianTut5]
# rotate about z
move = stages.MoveRelative("rz +45°", cartesian)
move.group = group
move.setDirection(TwistStamped(header=header, twist=Twist(angular=Vector3(0, 0, pi / 4.0))))
task.add(move)
# [cartesianTut5]
# [cartesianTut6]
# Cartesian motion, defined as joint-space offset
move = stages.MoveRelative("joint offset", cartesian)
move.group = group
move.setDirection(dict(panda_joint1=pi / 6, panda_joint3=-pi / 6))
task.add(move)
# [cartesianTut6]
# [initAndConfigMoveTo]
# moveTo named posture, using joint-space interplation
move = stages.MoveTo("moveTo ready", jointspace)
move.group = group
move.setGoal("ready")
task.add(move)
# [initAndConfigMoveTo]
if task.plan():
task.publish(task.solutions[0])
time.sleep(100)