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#!/usr/bin/env python
#***************************************************************************
#
# Copyright (c) 2015 PX4 Development Team. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name PX4 nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#***************************************************************************/
#
# @author Andreas Antener <andreas@uaventure.com>
#
PKG = 'px4'
import sys
import unittest
import rospy
import math
from numpy import linalg
import numpy as np
from px4.msg import vehicle_control_mode
from std_msgs.msg import Header
from geometry_msgs.msg import PoseStamped, Quaternion
from tf.transformations import quaternion_from_euler
from mavros.srv import CommandBool
from manual_input import ManualInput
#
# Tests flying a path in offboard control by sending position setpoints
# over MAVROS.
#
# For the test to be successful it needs to reach all setpoints in a certain time.
# FIXME: add flight path assertion (needs transformation from ROS frame to NED)
#
class MavrosOffboardPosctlTest(unittest.TestCase):
def setUp(self):
rospy.init_node('test_node', anonymous=True)
rospy.wait_for_service('mavros/cmd/arming', 30)
rospy.Subscriber('px4_multicopter/vehicle_control_mode', vehicle_control_mode, self.vehicle_control_mode_callback)
rospy.Subscriber("mavros/position/local", PoseStamped, self.position_callback)
self.pubSpt = rospy.Publisher('mavros/setpoint/local_position', PoseStamped, queue_size=10)
self.cmdArm = rospy.ServiceProxy("mavros/cmd/arming", CommandBool)
self.rate = rospy.Rate(10) # 10hz
self.rateSec = rospy.Rate(1)
self.hasPos = False
self.controlMode = vehicle_control_mode()
#
# General callback functions used in tests
#
def position_callback(self, data):
self.hasPos = True
self.localPosition = data
def vehicle_control_mode_callback(self, data):
self.controlMode = data
#
# Helper methods
#
def is_at_position(self, x, y, z, offset):
if(not self.hasPos):
return False
rospy.logdebug("current position %f, %f, %f" % (self.localPosition.pose.position.x, self.localPosition.pose.position.y, self.localPosition.pose.position.z))
desired = np.array((x, y, z))
pos = np.array((self.localPosition.pose.position.x, self.localPosition.pose.position.y, self.localPosition.pose.position.z))
return linalg.norm(desired - pos) < offset
def reach_position(self, x, y, z, timeout):
# set a position setpoint
pos = PoseStamped()
pos.header = Header()
pos.header.frame_id = "base_footprint"
pos.pose.position.x = x
pos.pose.position.y = y
pos.pose.position.z = z
# For demo purposes we will lock yaw/heading to north.
yaw_degrees = 0 # North
yaw = math.radians(yaw_degrees)
quaternion = quaternion_from_euler(0, 0, yaw)
pos.pose.orientation = Quaternion(*quaternion)
# does it reach the position in X seconds?
count = 0
while(count < timeout):
# update timestamp for each published SP
pos.header.stamp = rospy.Time.now()
self.pubSpt.publish(pos)
if(self.is_at_position(pos.pose.position.x, pos.pose.position.y, pos.pose.position.z, 0.5)):
break
count = count + 1
self.rate.sleep()
self.assertTrue(count < timeout, "took too long to get to position")
def arm(self):
return self.cmdArm(value=True)
#
# Test offboard position control
#
def test_posctl(self):
# FIXME: this must go ASAP when arming is implemented
manIn = ManualInput()
manIn.arm()
manIn.offboard()
self.assertTrue(self.arm(), "Could not arm")
self.rateSec.sleep()
self.rateSec.sleep()
self.assertTrue(self.controlMode.flag_armed, "flag_armed is not set after 2 seconds")
# prepare flight path
positions = (
(0,0,0),
(2,2,2),
(2,-2,2),
(-2,-2,2),
(2,2,2))
for i in range(0, len(positions)):
self.reach_position(positions[i][0], positions[i][1], positions[i][2], 120)
# does it hold the position for Y seconds?
positionHeld = True
count = 0
timeout = 50
while(count < timeout):
if(not self.is_at_position(2, 2, 2, 0.5)):
positionHeld = False
break
count = count + 1
self.rate.sleep()
self.assertTrue(count == timeout, "position could not be held")
if __name__ == '__main__':
import rostest
rostest.rosrun(PKG, 'mavros_offboard_posctl_test', MavrosOffboardPosctlTest)
#unittest.main()
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