def get_ros_transform(self,
transform=None,
frame_id=None,
child_frame_id=None):
"""
Function to provide the current ROS transform
:return: the ROS transfrom
:rtype: geometry_msgs.msg.TransformStamped
"""
tf_msg = TransformStamped()
if frame_id:
tf_msg.header = self.get_msg_header(frame_id)
else:
tf_msg.header = self.get_msg_header("map")
if child_frame_id:
tf_msg.child_frame_id = child_frame_id
else:
tf_msg.child_frame_id = self.get_prefix()
if transform:
tf_msg.transform = transform
else:
tf_msg.transform = trans.carla_transform_to_ros_transform(
self.carla_actor.get_transform())
return tf_msg
def vehicle_info_callback(msg):
print("get vehicle info")
global get_vehicle
get_vehicle = True
global vehicle_info
vehicle_info = msg
transform = TransformStamped()
transform.header = vehicle_info.header
rotation_matrix = np.array([
(vehicle_info.pose[0], vehicle_info.pose[1], vehicle_info.pose[2]),
(vehicle_info.pose[4], vehicle_info.pose[5], vehicle_info.pose[6]),
(vehicle_info.pose[8], vehicle_info.pose[9], vehicle_info.pose[10])
])
r, p, y = rotationMatrixToEulerAngles(rotation_matrix)
quaternion = quaternion_from_euler(r, p, y)
transform.transform.rotation.x = quaternion[0]
transform.transform.rotation.y = quaternion[1]
transform.transform.rotation.z = quaternion[2]
transform.transform.rotation.w = quaternion[3]
transform.transform.translation.x = vehicle_info.pose[3]
transform.transform.translation.y = vehicle_info.pose[7]
transform.transform.translation.z = vehicle_info.pose[11]
transform.child_frame_id = "global"
global transforms
transforms.transforms.append(transform)
tf_pub.publish(transforms)
def update(self):
try:
with self.get_god_map():
robot_links = set(self.unsafe_get_robot().get_link_names())
attached_links = robot_links - self.original_links
if attached_links:
tf_msg = TFMessage()
get_fk = self.unsafe_get_robot().get_fk_pose
for link_name in attached_links:
parent_link_name = self.unsafe_get_robot().get_parent_link_of_link(link_name)
fk = get_fk(parent_link_name, link_name)
tf = TransformStamped()
tf.header = fk.header
tf.header.stamp = rospy.get_rostime()
tf.child_frame_id = link_name
tf.transform.translation.x = fk.pose.position.x
tf.transform.translation.y = fk.pose.position.y
tf.transform.translation.z = fk.pose.position.z
tf.transform.rotation = normalize_quaternion_msg(fk.pose.orientation)
tf_msg.transforms.append(tf)
self.tf_pub.publish(tf_msg)
except KeyError as e:
pass
except UnboundLocalError as e:
pass
except ValueError as e:
pass
return Status.SUCCESS
def transform_cloud_to_map(cloud):
rospy.loginfo("to map from " + cloud.header.frame_id)
transformation_store = TransformListener()
rospy.sleep(2)
t = transformation_store.getLatestCommonTime("map", cloud.header.frame_id)
tr_r = transformation_store.lookupTransform("map", cloud.header.frame_id,
t)
tr = Transform()
tr.translation = Vector3(tr_r[0][0], tr_r[0][1], tr_r[0][2])
tr.rotation = Quaternion(tr_r[1][0], tr_r[1][1], tr_r[1][2], tr_r[1][3])
tr_s = TransformStamped()
tr_s.header = std_msgs.msg.Header()
tr_s.header.stamp = rospy.Time.now()
tr_s.header.frame_id = "map"
tr_s.child_frame_id = cloud.header.frame_id
tr_s.transform = tr
t_kdl = transform_to_kdl(tr_s)
points_out = []
for p_in in pc2.read_points(cloud, field_names=["x", "y", "z", "rgb"]):
p_out = t_kdl * PyKDL.Vector(p_in[0], p_in[1], p_in[2])
points_out.append([p_out[0], p_out[1], p_out[2]])
cloud.header.frame_id = "map"
res = pc2.create_cloud(cloud.header, cloud.fields, points_out)
rospy.loginfo(cloud.header)
return res
def orb_pose_cb(self, msg):
"""
:type msg: PoseStamped
:param msg:
:return:
"""
if not self.map_initialized:
self.map_initialized = True
static_request = SetStaticTfRequest()
static_request.tf = self.map_tf
static_request.tf.header.frame_id = "Unity"
static_request.tf.child_frame_id = "map"
self.static_srv.call(static_request)
rospy.loginfo("Requesting static")
topic_request = GetStampedTopicTfRequest()
topic_request.out_frame = "Child"
topic_request.topic_name = "/orb_slam2_mono/map_points"
topic_request.out_topic_name_recommendation = "/unity/map_points"
self.tf_topic_srv.call(topic_request)
rospy.loginfo("Requesting Topic Transformation for PointCloud2")
else:
tf_msg = TransformStamped()
tf_msg.header = msg.header
tf_msg.header.frame_id = "map"
tf_msg.child_frame_id = "camera_link"
tf_msg.transform.translation.x = msg.pose.position.x
tf_msg.transform.translation.y = msg.pose.position.y
tf_msg.transform.translation.z = msg.pose.position.z
tf_msg.transform.rotation.x = msg.pose.orientation.x
tf_msg.transform.rotation.y = msg.pose.orientation.y
tf_msg.transform.rotation.z = msg.pose.orientation.z
tf_msg.transform.rotation.w = msg.pose.orientation.w
self.orb_tf_pub.publish(tf_msg)
def broadcast_static_frame(self, name, pose_stamped):
frame = TransformStamped()
frame.header = pose_stamped.header
frame.child_frame_id = name
frame.transform.translation = pose_stamped.pose.position
frame.transform.rotation = pose_stamped.pose.orientation
self.tf_static.sendTransform(frame)
def navigate(self):
rate = self.rospy.Rate(50) # 10hz
msg = TransformStamped()
msg.header = Header()
msg.header.frame_id = "usb_cam"
msg.header.stamp = rospy.Time.now()
while 1:
msg.transform.translation.x = self.currentx
msg.transform.translation.y = self.currenty
msg.transform.translation.z = self.currentz
msg.transform.rotation.x = self.currentxo
msg.transform.rotation.y = self.currentyo
msg.transform.rotation.z = self.currentzo
msg.transform.rotation.w = self.currentwo
'''
msg.pose.position.x = self.currentx
msg.pose.position.y = self.currenty
msg.pose.position.z = self.currentz
msg.pose.orientation.x = self.currentxo
msg.pose.orientation.y = self.currentyo
msg.pose.orientation.z = self.currentzo
msg.pose.orientation.w = self.currentwo
'''
# For demo purposes we will lock yaw/heading to north.
#yaw_degrees = 0 # North
#yaw = radians(yaw_degrees)
#quaternion = quaternion_from_euler(0, 0, yaw)
#msg.pose.orientation = Quaternion(*quaternion)
self.pub.publish(msg)
rate.sleep()
def on_result(self, boxes, classes):
rospy.logdebug("on_result")
msg = ObjectDetection()
msg.header = boxes.header
for box, label, prob in zip(boxes.boxes, classes.label_names,
classes.label_proba):
if not label:
continue
pose = Object6DPose()
pose.pose = box.pose
pose.reliability = prob
pose.type = label
msg.objects.append(pose)
if self.publish_tf:
t = TransformStamped()
t.header = box.header
t.child_frame_id = label
t.transform.translation.x = box.pose.position.x
t.transform.translation.y = box.pose.position.y
t.transform.translation.z = box.pose.position.z
t.transform.rotation.x = box.pose.orientation.x
t.transform.rotation.y = box.pose.orientation.y
t.transform.rotation.z = box.pose.orientation.z
t.transform.rotation.w = box.pose.orientation.w
self.tfb.sendTransform(t)
self.pub_detect.publish(msg)
def pose_to_tf(pose, child_frame_id):
tf = TransformStamped()
tf.header = pose.header
tf.child_frame_id = child_frame_id
tf.transform.translation = pose.pose.position
tf.transform.rotation = pose.pose.orientation
return tf
def invert_transform(msg):
"""
The purpose of this is to invert a TransformStamped message.
:type msg: TransformStamped
:param msg:
:return: TransformStamped that has been inverted
"""
trans_mat = translation_matrix([
msg.transform.translation.x, msg.transform.translation.y,
msg.transform.translation.z
])
quat_mat = quaternion_matrix([
msg.transform.rotation.x, msg.transform.rotation.y,
msg.transform.rotation.z, msg.transform.rotation.w
])
homogenous_transformation = concatenate_matrices(trans_mat, quat_mat)
inverse_transformation = inverse_matrix(homogenous_transformation)
translation = translation_from_matrix(inverse_transformation)
quaternion = quaternion_from_matrix(inverse_transformation)
t = TransformStamped()
t.header = msg.header
t.child_frame_id = msg.child_frame_id
t.transform.translation.x = translation[0]
t.transform.translation.y = translation[1]
t.transform.translation.z = translation[2]
t.transform.rotation.x = quaternion[0]
t.transform.rotation.y = quaternion[1]
t.transform.rotation.z = quaternion[2]
t.transform.rotation.w = quaternion[3]
return t
def on_result(self, boxes, classes):
rospy.logdebug("on_result")
msg = ObjectDetection()
msg.header = boxes.header
for box, label, prob in zip(boxes.boxes, classes.label_names, classes.label_proba):
if not label:
continue
pose = Object6DPose()
pose.pose = box.pose
pose.reliability = prob
pose.type = label
msg.objects.append(pose)
if self.publish_tf:
t = TransformStamped()
t.header = box.header
t.child_frame_id = label
t.transform.translation.x = box.pose.position.x
t.transform.translation.y = box.pose.position.y
t.transform.translation.z = box.pose.position.z
t.transform.rotation.x = box.pose.orientation.x
t.transform.rotation.y = box.pose.orientation.y
t.transform.rotation.z = box.pose.orientation.z
t.transform.rotation.w = box.pose.orientation.w
self.tfb.sendTransform(t)
self.pub_detect.publish(msg)
def callback(msg):
print "got imu"
# Offset to put the cloud in a different place than the map:
x_offset = 120
y_offset = 0
p = PoseWithCovarianceStamped()
p.header = msg.header
p.header.frame_id = "map"
p.pose.pose.orientation = msg.orientation
p.pose.pose.position.x = x_offset
p.pose.pose.position.y = y_offset
pub.publish(p)
tfmsg = TFMessage()
transformS = TransformStamped()
transformS.header = msg.header
transform = Transform()
transform.rotation = msg.orientation
transform.translation.x = x_offset
transform.translation.y = y_offset
transformS.transform = transform
transformS.child_frame_id = "base"
tfmsg.transforms.append(transformS)
pub_tf.publish(tfmsg)
def pub_transform(self, detection):
tfs = TransformStamped()
tfs.header = detection.header
tfs.child_frame_id = detection.label + '_' + str(detection.id)
tfs.transform.translation = detection.pose.pose.position
tfs.transform.rotation = detection.pose.pose.orientation
self._tf2_bcaster.sendTransform(tfs)
def apply_transform_inv(from_tf, to_tf):
def invert(trfm):
new_tf = deepcopy(trfm)
quat_list = [
trfm.transform.rotation.x, trfm.transform.rotation.y,
trfm.transform.rotation.z, trfm.transform.rotation.w
]
rot = quaternion_matrix(quat_list)[:3, :3]
quat_inv = quaternion_inverse(quat_list)
[
new_tf.transform.translation.x, new_tf.transform.translation.y,
new_tf.transform.translation.z
] = np.matmul(rot.T, [
-trfm.transform.translation.x, -trfm.transform.translation.y,
-trfm.transform.translation.z
])
[
new_tf.transform.rotation.x, new_tf.transform.rotation.y,
new_tf.transform.rotation.z, new_tf.transform.rotation.w
] = [quat_inv[0], quat_inv[1], quat_inv[2], quat_inv[3]]
return new_tf
def get_R(trfm):
quat_list = trfm.transform.rotation.x, trfm.transform.rotation.y, trfm.transform.rotation.z, trfm.transform.rotation.w
rot_matrix = quaternion_matrix(quat_list)
return rot_matrix[:3, :3]
new_tf = TransformStamped()
new_tf.header = from_tf.header
new_tf.child_frame_id = to_tf.child_frame_id
to_tf_inv = invert(to_tf)
R = get_R(from_tf)
[
new_tf.transform.translation.x, new_tf.transform.translation.y,
new_tf.transform.translation.z
] = [
from_tf.transform.translation.x, from_tf.transform.translation.y,
from_tf.transform.translation.z
] + np.matmul(R, [
to_tf_inv.transform.translation.x, to_tf_inv.transform.translation.y,
to_tf_inv.transform.translation.z
])
new_euler = quaternion_multiply([
from_tf.transform.rotation.x, from_tf.transform.rotation.y,
from_tf.transform.rotation.z, from_tf.transform.rotation.w
], [
to_tf_inv.transform.rotation.x, to_tf_inv.transform.rotation.y,
to_tf_inv.transform.rotation.z, to_tf_inv.transform.rotation.w
])
[
new_tf.transform.rotation.x, new_tf.transform.rotation.y,
new_tf.transform.rotation.z, new_tf.transform.rotation.w
] = [new_euler[0], new_euler[1], new_euler[2], new_euler[3]]
return new_tf
def transform_helper(vec3, frame):
pos = TransformStamped()
pos.child_frame_id = frame
pos.header = Header()
pos.transform = Transform()
pos.transform.translation = vec3
return pos
def transform_helper(vec3, frame):
pos = TransformStamped()
pos.child_frame_id = frame
pos.header = Header()
pos.transform = Transform()
pos.transform.translation = vec3
return pos
def _publish_tf(self, poseStamped, name="moveit_target"):
transform = TransformStamped()
transform.header = poseStamped.header
transform.transform.translation = poseStamped.pose.position
transform.transform.rotation = poseStamped.pose.orientation
transform.child_frame_id = name
self.br.sendTransformMessage(transform)
def add_frame_from_pose(self, name, pose_stamped):
with self.broadcasting_frames_lock:
frame = TransformStamped()
frame.header = pose_stamped.header
frame.child_frame_id = name
frame.transform.translation = pose_stamped.pose.position
frame.transform.rotation = pose_stamped.pose.orientation
self.broadcasting_frames.append(frame)
def pose_to_tf(pose_msg, child_frame_id):
ts = TransformStamped()
ts.header = pose_msg.header
ts.child_frame_id = child_frame_id
ts.transform.translation = pose_msg.pose.position
ts.transform.rotation = pose_msg.pose.orientation
msg = TFMessage()
msg.transforms.append(ts)
return msg
def odometry_process(self, x, y, theta, header):
"""
Callback function that is executed upon reception of new odometry data.
"""
# Prepare the new ROS message for the processed odometry
odometry = TransformStamped()
odometry.header.seq = 0
odometry.header = header
odometry.header.frame_id = self.ACQ_DEVICE_NAME
odometry.child_frame_id = self.ACQ_DEVICE_NAME
# Transform the incoming data to quaternions
transform_current = np.array([[math.cos(theta), -1.0 * math.sin(theta), x],
[math.sin(theta), math.cos(theta), y],
[0.0, 0.0, 1.0]])
transform_previous = np.array([[math.cos(self.previousOdometry["theta"]), -1.0 * math.sin(self.previousOdometry["theta"]), self.previousOdometry["x"]],
[math.sin(self.previousOdometry["theta"]), math.cos(self.previousOdometry["theta"]), self.previousOdometry["y"]],
[0.0, 0.0, 1.0]])
transform_previous_inv = np.linalg.inv(transform_previous)
self.previousOdometry = {'x': x, 'y': y, 'theta': theta}
transform_relative = np.matmul(transform_previous_inv, transform_current)
angle = math.atan2(transform_relative[1][0], transform_relative[0][0])
x = transform_relative[0][2]
y = transform_relative[1][2]
cy = math.cos(angle * 0.5)
sy = math.sin(angle * 0.5)
cp = 1.0
sp = 0.0
cr = 1.0
sr = 0.0
q_w = cy * cp * cr + sy * sp * sr
q_x = cy * cp * sr - sy * sp * cr
q_y = sy * cp * sr + cy * sp * cr
q_z = sy * cp * cr - cy * sp * sr
# Save the resuts to the new odometry relative pose message
odometry.transform.translation.x = x
odometry.transform.translation.y = y
odometry.transform.translation.z = 0
odometry.transform.rotation.x = q_x
odometry.transform.rotation.y = q_y
odometry.transform.rotation.z = q_z
odometry.transform.rotation.w = q_w
return odometry
def callback(self, data):
tfmsg = TransformStamped()
tfmsg.header = data.header
tfmsg.child_frame_id = "pointcloud_camera"
tfmsg.transform.translation.x = data.pose.pose.position.x
tfmsg.transform.translation.y = data.pose.pose.position.y
tfmsg.transform.translation.z = data.pose.pose.position.z
tfmsg.transform.rotation = data.pose.pose.orientation
self.tfmsg_pub.publish(tfmsg)
def publish_odometry(self):
quat = tf.transformations.quaternion_from_euler(0, 0, self.yaw)
quaternion = Quaternion()
quaternion.x = quat[0]
quaternion.y = quat[1]
quaternion.z = quat[2]
quaternion.w = quat[3]
if self.last_time is None:
self.last_time = rospy.Time.now()
vx = self.vx #(msg->twist.twist.linear.x) *trans_mul_;
vy = self.vy #msg->twist.twist.linear.y;
vth = self.vyaw #(msg->twist.twist.angular.z) *rot_mul_;
current_time = rospy.Time.now()
dt = (current_time - self.last_time).to_sec()
delta_x = (vx * math.cos(self.yaw) - vy * math.sin(self.yaw)) * dt
delta_y = (vx * math.sin(self.yaw) + vy * math.cos(self.yaw)) * dt
delta_th = vth * dt
self.x += delta_x
self.y += delta_y
self.yaw += delta_th
odom = Odometry()
odom.header.stamp = rospy.Time.now()
odom.header.frame_id = "odom"
odom.child_frame_id = "base_link"
odom.pose.pose.position.x = self.x
odom.pose.pose.position.y = self.y
odom.pose.pose.position.z = 0.0
odom.pose.pose.orientation = quaternion
odom.twist.twist.linear.x = vx
odom.twist.twist.linear.y = vy
odom.twist.twist.angular.z = vth
self.odom_pub.publish(odom)
transform_stamped = TransformStamped()
transform_stamped.header = odom.header
transform_stamped.transform.translation.x = self.x
transform_stamped.transform.translation.y = self.y
transform_stamped.transform.translation.z = 0.0
transform_stamped.transform.rotation = quaternion
#self.tfbr.sendTransform(transform_stamped)
self.tfbr.sendTransform((self.x, self.y, 0.0),
(quat[0], quat[1], quat[2], quat[3]),
rospy.Time.now(),
"odom",
"base_link")
self.last_time = current_time
def poseCB(msg_in):
msg_out = TransformStamped()
msg_out.header = msg_in.header
msg_out.child_frame_id = robot_id
msg_out.transform.translation.x = msg_in.pose.pose.position.x
msg_out.transform.translation.y = msg_in.pose.pose.position.y
msg_out.transform.translation.z = msg_in.pose.pose.position.z
msg_out.transform.rotation = msg_in.pose.pose.orientation
if sim_mode:
msg_out.header.stamp = rospy.Time.from_sec(time.time())
pub.publish(msg_out)
def publish(self):
"""Publish images from AirSim to ROS"""
responses = self._airsim_client.simGetImages([
# uncompressed RGB array bytes
ImageRequest(self._camera_name, ImageType.Scene, compress=False),
# # infrared uncompressed image
# ImageRequest(self._camera_name, ImageType.Infrared, compress=False),
# # floating point uncompressed image
# ImageRequest(self._camera_name, ImageType.DepthPlanner, pixels_as_float=True, compress=False),
], self._vehicle_name)
color_response = responses[0]
# ir_response = responses[1]
# depth_response = responses[2]
header = Header()
header.stamp = self.get_clock().now().to_msg()
# TODO: implement parameter for frame id, also decide on if each separate image type should have a different frame id
# This may mean we should load the ids via ros parameters
header.frame_id = self._camera_frame_id
# Handle cam info it has not been found yet
if self._vehicle_name not in self._cam_info_msgs.keys():
self._cam_info_msgs[self._vehicle_name] = {}
cam_info = self._airsim_client.simGetCameraInfo(self._camera_name, self._vehicle_name)
d_params = self._airsim_client.simGetDistortionParams(self._camera_name, self._vehicle_name)
self.get_logger().info(f"{d_params}")
self.get_logger().info(f"""
HFOV: {cam_info.fov},
PROJ: {cam_info.proj_mat}
""")
# TODO: implement multiple cameras for each lens on realsense and update this method
self._cam_info_msgs[self._vehicle_name]["color"] = construct_info(header, cam_info, color_response.height, color_response.width)
# self._cam_info_msgs[self._vehicle_name]["ir"] = self._cam_info_msgs[self._vehicle_name]["color"]
image_color = construct_image(header, color_response, "bgr8")
# image_ir = construct_image(header, ir_response, "rgb8")
# image_depth = construct_image(header, depth_response, "rgb8")
# TODO: use camera pose from airsim
tfmsg = TransformStamped()
translation = Vector3(x=0., y=0., z=0.)
tfmsg.transform.translation = translation
tfmsg.transform.rotation = Quaternion(x=0., y=0., z=0., w=1.)
tfmsg.child_frame_id = self._camera_frame_id
tf_header = Header()
tf_header.stamp = header.stamp
tfmsg.header = tf_header
tfmsg.header.frame_id = "world"
self.br.sendTransform(tfmsg)
self._pub_color.publish(image_color)
# self._pub_ir.publish(image_ir)
# self._pub_depth.publish(image_depth)
self._pub_info_color.publish(self._cam_info_msgs[self._vehicle_name]["color"])
def copy_transform(self, transform, child_frame_id=None):
copied_tf = TransformStamped()
copied_tf.header = transform.header
if child_frame_id:
copied_tf.child_frame_id = child_frame_id
else:
copied_tf.child_frame_id = transform.child_frame_id
copied_tf.transform = transform.transform
copied_tf.header.stamp = rospy.Time.now()
return copied_tf
def get_tf_msg(self):
"""
Helper Function used to create a ROS tf message for this child
:return: The Filled Tf message
:rtype: geometry_msgs.msg.TransformStamped
"""
tf_msg = TransformStamped()
tf_msg.header = self.get_msg_header()
tf_msg.child_frame_id = self.get_frame_ID()
tf_msg.transform = self.get_current_ros_transform()
return tf_msg
def stateCb(self, msg, veh):
t = TransformStamped()
t.header = msg.header
t.child_frame_id = veh + "/imu"
t.transform.translation.x = msg.pos.x
t.transform.translation.y = msg.pos.y
t.transform.translation.z = msg.pos.z
t.transform.rotation.x = msg.quat.x
t.transform.rotation.y = msg.quat.y
t.transform.rotation.z = msg.quat.z
t.transform.rotation.w = msg.quat.w
self.tf.sendTransform(t)
def get_tf_msg(self):
"""
Helper function to create a ROS tf message of this child
:return: the filled tf message
:rtype: geometry_msgs.msg.TransformStamped
"""
tf_msg = TransformStamped()
tf_msg.header = self.get_msg_header()
tf_msg.child_frame_id = self.get_frame_id()
tf_msg.transform = self.get_current_ros_transfrom()
return tf_msg
def CreateBag(matfile, bagname, frame_id, navsat_topic="/fix"):
'''Creates the actual bag file by successively adding images'''
bag = rosbag.Bag(bagname, 'w', compression=rosbag.Compression.BZ2, chunk_threshold=32 * 1024 * 1024)
data = loadmat(matfile)['rnv']
rnv = {}
for i, col in enumerate(data.dtype.names):
rnv[col] = data.item()[i]
try:
ref = None
x, y = [], []
for i, t in enumerate(tqdm(rnv['t'])):
# print("Adding %s" % image_name)
stamp = rospy.Time.from_sec(t)
nav_msg = NavSatFix()
nav_msg.header.stamp = stamp
nav_msg.header.frame_id = "map"
nav_msg.header.seq = i
nav_msg.latitude = rnv['lat'][i][0]
nav_msg.longitude = rnv['lon'][i][0]
nav_msg.altitude = -rnv['depth'][i][0]
nav_msg.position_covariance_type = nav_msg.COVARIANCE_TYPE_UNKNOWN
transform_msg = TransformStamped()
transform_msg.header = copy(nav_msg.header)
utm = fromLatLong(nav_msg.latitude, nav_msg.longitude, nav_msg.altitude)
if ref is None:
ref = utm.toPoint()
x.append(utm.toPoint().x - ref.x)
y.append(utm.toPoint().y - ref.y)
dx = x[-1] - sum(x[-min(20, len(x)):]) / min(20, len(x))
dy = y[-1] - sum(y[-min(20, len(y)):]) / min(20, len(y))
transform_msg.transform.translation.x = x[-1]
transform_msg.transform.translation.y = y[-1]
transform_msg.transform.translation.z = nav_msg.altitude
transform_msg.transform.rotation = Quaternion(*tf_conversions.transformations.quaternion_from_euler(0, 0,
math.atan2(dy, dx)))
transform_msg.child_frame_id = frame_id
tf_msg = tfMessage(transforms=[transform_msg])
odometry_msg = Odometry()
odometry_msg.header = copy(transform_msg.header)
odometry_msg.child_frame_id = frame_id
odometry_msg.pose.pose.position = transform_msg.transform.translation
odometry_msg.pose.pose.orientation = transform_msg.transform.rotation
bag.write(navsat_topic, nav_msg, stamp)
bag.write("/tf", tf_msg, stamp)
bag.write("/transform", transform_msg, stamp)
bag.write("/odom", odometry_msg, stamp)
finally:
bag.close()
def pose_stamped_to_transform_stamped(ps):
ts = TransformStamped()
ts.header = ps.header
ts.transform.translation.x = ps.pose.position.x
ts.transform.translation.y = ps.pose.position.y
ts.transform.translation.z = ps.pose.position.z
ts.transform.rotation.x = ps.pose.orientation.x
ts.transform.rotation.y = ps.pose.orientation.y
ts.transform.rotation.z = ps.pose.orientation.z
ts.transform.rotation.w = ps.pose.orientation.w
return ts
def callback_pose(msg_in):
# Create a transform at the time
# from the pose message for where
# the UAV is in the map
t = TransformStamped()
t.header = msg_in.header
t.child_frame_id = uav_name
t.transform.translation = msg_in.pose.position
t.transform.rotation = msg_in.pose.orientation
# Send the transformation
tfbr.sendTransform(t)
def get_tf_msg(self):
"""
Override Function used to create a ROS tf message for this sensor
The reported transform of the sensor is in respect to the global frame.
:return: The Filled tf Message
:rtype: geometry_msgs.msg.TransformStamped
"""
tf_msg = TransformStamped()
tf_msg.header = self.get_msg_header()
tf_msg.header.frame_id = "/map"
tf_msg.child_frame_id = self.get_frame_ID()
tf_msg.transform = self.get_current_ros_transform()
return tf_msg
def publish_box_tf(self, box, label):
pos, ori = (box.pose.position, box.pose.orientation)
t = TransformStamped()
t.header = box.header
t.child_frame_id = label
t.transform.translation.x = pos.x
t.transform.translation.y = pos.y
t.transform.translation.z = pos.z
t.transform.rotation.x = ori.x
t.transform.rotation.y = ori.y
t.transform.rotation.z = ori.z
t.transform.rotation.w = ori.w
self.tfb.sendTransform(t)
def pose_cb(pose_msg):
trans = TransformStamped()
trans.child_frame_id = "handle_orig"
trans.header = pose_msg.header
trans.transform.rotation = pose_msg.pose.orientation
trans.transform.translation.x = pose_msg.pose.position.x
trans.transform.translation.y = pose_msg.pose.position.y
trans.transform.translation.z = pose_msg.pose.position.z
set_tf(10, trans) # orig
try:
transed_pose = listener.transformPose("BODY", pose_msg)
except (tf.LookupException, tf.ConnectivityException, tf.ExtrapolationException), e:
print "tf error: %s" % e
return
def publish_filtered_tf(self, header):
yaw = np.median(self.buffer)
q = tfs.quaternion_from_euler(0, 0, yaw - math.pi)
ts = TransformStamped()
ts.header = header
ts.header.frame_id = self.source
ts.child_frame_id = self.goal
ts.transform.translation.x = self.position[0]
ts.transform.translation.y = self.position[1]
ts.transform.translation.z = 0
ts.transform.rotation.x = q[0]
ts.transform.rotation.y = q[1]
ts.transform.rotation.z = q[2]
ts.transform.rotation.w = q[3]
msg = tfMessage()
msg.transforms.append(ts)
self.tf_pub.publish(msg)
def publish_filtered_tf(self, header):
m = np.median(self.buffer, axis=0)
if not self.filter_position:
m[0:3] = self.last_transform[0:3]
q = quaternion_from_euler(m[3], m[4], m[5])
ts = TransformStamped()
ts.header = header
ts.child_frame_id = self.frame_id + '_filtered'
ts.transform.translation.x = m[0]
ts.transform.translation.y = m[1]
ts.transform.translation.z = m[2]
ts.transform.rotation.x = q[0]
ts.transform.rotation.y = q[1]
ts.transform.rotation.z = q[2]
ts.transform.rotation.w = q[3]
msg = tfMessage()
msg.transforms.append(ts)
self.tf_pub.publish(msg)
def callback(self, data):
rospy.loginfo("Objects %d", data.objects.__len__())
table_corners = []
# obtain table_offset and table_pose
to = rospy.wait_for_message(self.table_topic, MarkerArray);
# obtain Table corners ...
rospy.loginfo("Tables hull size %d", to.markers.__len__())
if not to.markers:
rospy.loginfo("No tables detected")
return
else:
# NB - D says that ORK has this set to filter based on height.
# IIRC, it's 0.6-0.8m above whatever frame is set as the floor
point_array_size = 4 # for the 4 corners of the bounding box
for i in range (0, point_array_size):
p = Point()
p.x = to.markers[0].points[i].x
p.y = to.markers[0].points[i].y
p.z = to.markers[0].points[i].z
table_corners.append(p)
# this is a table pose at the edge close to the robot, in the center of x axis
table_pose = PoseStamped()
table_pose.header = to.markers[0].header
table_pose.pose = to.markers[0].pose
# Determine table dimensions
rospy.loginfo('calculating table pose bounding box in frame: %s' % table_pose.header.frame_id)
min_x = sys.float_info.max
min_y = sys.float_info.max
max_x = -sys.float_info.max
max_y = -sys.float_info.max
for i in range (table_corners.__len__()):
if table_corners[i].x > max_x:
max_x = table_corners[i].x
if table_corners[i].y > max_y:
max_y = table_corners[i].y
if table_corners[i].x < min_x:
min_x = table_corners[i].x
if table_corners[i].y < min_y:
min_y = table_corners[i].y
table_dim = Point()
# TODO: if we don't (can't!) compute the height, should we at least give it non-zero depth?
# (would also require shifting the observed centroid down by table_dim.z/2)
table_dim.z = 0.0
table_dim.x = abs(max_x - min_x)
table_dim.y = abs(max_y - min_y)
print "Dimensions: ", table_dim.x, table_dim.y
# Temporary frame used for transformations
table_link = 'table_link'
# centroid of a table in table_link frame
centroid = PoseStamped()
centroid.header.frame_id = table_link
centroid.header.stamp = table_pose.header.stamp
centroid.pose.position.x = (max_x + min_x)/2.
centroid.pose.position.y = (max_y + min_y)/2.
centroid.pose.position.z = 0.0
centroid.pose.orientation.x = 0.0
centroid.pose.orientation.y = 0.0
centroid.pose.orientation.z = 0.0
centroid.pose.orientation.w = 1.0
# generate transform from table_pose to our newly-defined table_link
tt = TransformStamped()
tt.header = table_pose.header
tt.child_frame_id = table_link
tt.transform.translation = table_pose.pose.position
tt.transform.rotation = table_pose.pose.orientation
self.tl.setTransform(tt)
self.tl.waitForTransform(table_link, table_pose.header.frame_id, table_pose.header.stamp, rospy.Duration(3.0))
if self.tl.canTransform(table_pose.header.frame_id, table_link, table_pose.header.stamp):
centroid_table_pose = self.tl.transformPose(table_pose.header.frame_id, centroid)
self.pose_pub.publish(centroid_table_pose)
else:
rospy.logwarn("No transform between %s and %s possible",table_pose.header.frame_id, table_link)
return
# transform each object into desired frame; add to list of clusters
cluster_list = []
for i in range (data.objects.__len__()):
rospy.loginfo("Point clouds %s", data.objects[i].point_clouds.__len__())
pc = PointCloud2()
pc = data.objects[i].point_clouds[0]
arr = pointclouds.pointcloud2_to_array(pc, 1)
arr_xyz = pointclouds.get_xyz_points(arr)
arr_xyz_trans = []
for j in range (arr_xyz.__len__()):
ps = PointStamped();
ps.header.frame_id = table_link
ps.header.stamp = table_pose.header.stamp
ps.point.x = arr_xyz[j][0]
ps.point.y = arr_xyz[j][1]
ps.point.z = arr_xyz[j][2]
if self.tl.canTransform(table_pose.header.frame_id, table_link, table_pose.header.stamp):
ps_in_kinect_frame = self.tl.transformPoint(table_pose.header.frame_id, ps)
else:
rospy.logwarn("No transform between %s and %s possible",table_pose.header.frame_id, table_link)
return
arr_xyz_trans.append([ps_in_kinect_frame.point.x, ps_in_kinect_frame.point.y, ps_in_kinect_frame.point.z])
pc_trans = PointCloud2()
pc_trans = pointclouds.xyz_array_to_pointcloud2(np.asarray([arr_xyz_trans]),
table_pose.header.stamp, table_pose.header.frame_id)
self.pub.publish(pc_trans)
cluster_list.append(pc_trans)
rospy.loginfo("cluster size %d", cluster_list.__len__())
# finally - save all data in the object that'll be sent in response to actionserver requests
with self.result_lock:
self._result.objects = cluster_list
self._result.table_dims = table_dim
self._result.table_pose = centroid_table_pose
self.has_data = True
