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Tools: remove old iris_ros.py files
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#!/usr/bin/env python
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"""
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Python interface to euroc ROS multirotor simulator
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See https://pixhawk.org/dev/ros/sitl
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"""
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import time
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import mav_msgs.msg as mav_msgs
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import px4.msg as px4
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import rosgraph_msgs.msg as rosgraph_msgs
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import rospy
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import sensor_msgs.msg as sensor_msgs
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from aircraft import Aircraft
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from pymavlink.rotmat import Vector3, Matrix3
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def quat_to_dcm(q1, q2, q3, q4):
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"""Convert quaternion to DCM."""
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q3q3 = q3 * q3
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q3q4 = q3 * q4
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q2q2 = q2 * q2
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q2q3 = q2 * q3
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q2q4 = q2 * q4
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q1q2 = q1 * q2
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q1q3 = q1 * q3
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q1q4 = q1 * q4
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q4q4 = q4 * q4
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m = Matrix3()
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m.a.x = 1.0-2.0*(q3q3 + q4q4)
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m.a.y = 2.0*(q2q3 - q1q4)
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m.a.z = 2.0*(q2q4 + q1q3)
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m.b.x = 2.0*(q2q3 + q1q4)
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m.b.y = 1.0-2.0*(q2q2 + q4q4)
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m.b.z = 2.0*(q3q4 - q1q2)
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m.c.x = 2.0*(q2q4 - q1q3)
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m.c.y = 2.0*(q3q4 + q1q2)
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m.c.z = 1.0-2.0*(q2q2 + q3q3)
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return m
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class IrisRos(Aircraft):
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"""A IRIS MultiCopter from ROS."""
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def __init__(self):
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Aircraft.__init__(self)
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self.max_rpm = 1200
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self.have_new_time = False
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self.have_new_imu = False
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self.have_new_pos = False
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topics = {
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"/clock" : (self.clock_cb, rosgraph_msgs.Clock),
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"/iris/imu" : (self.imu_cb, sensor_msgs.Imu),
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"/iris/vehicle_local_position" : (self.pos_cb, px4.vehicle_local_position),
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}
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rospy.init_node('ArduPilot', anonymous=True)
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for topic in topics.keys():
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(callback, msgtype) = topics[topic]
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rospy.Subscriber(topic, msgtype, callback)
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self.motor_pub = rospy.Publisher('/iris/command/motor_speed',
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mav_msgs.CommandMotorSpeed,
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queue_size=1)
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self.last_time = 0
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# spin() simply keeps python from exiting until this node is stopped
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# rospy.spin()
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def clock_cb(self, msg):
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self.time_now = self.time_base + msg.clock.secs + msg.clock.nsecs*1.0e-9
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self.have_new_time = True
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def imu_cb(self, msg):
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self.gyro = Vector3(msg.angular_velocity.x,
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-msg.angular_velocity.y,
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-msg.angular_velocity.z)
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self.accel_body = Vector3(msg.linear_acceleration.x,
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-msg.linear_acceleration.y,
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-msg.linear_acceleration.z)
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self.dcm = quat_to_dcm(msg.orientation.w,
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msg.orientation.x,
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-msg.orientation.y,
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-msg.orientation.z)
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self.have_new_imu = True
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def pos_cb(self, msg):
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self.velocity = Vector3(msg.vx, msg.vy, msg.vz)
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self.position = Vector3(msg.x, msg.y, msg.z)
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self.have_new_pos = True
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def update(self, actuators):
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while self.last_time == self.time_now or not self.have_new_time or not self.have_new_imu or not self.have_new_pos:
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time.sleep(0.001)
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self.have_new_time = False
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self.have_new_pos = False
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self.have_new_imu = False
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# create motor speed message
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msg = mav_msgs.CommandMotorSpeed()
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msg.header.stamp = rospy.get_rostime()
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motor_speed = []
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for i in range(len(actuators)):
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motor_speed.append(actuators[i]*self.max_rpm)
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msg.motor_speed = motor_speed
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self.last_time = self.time_now
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self.motor_pub.publish(msg)
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# update lat/lon/altitude
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self.update_position()
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