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