/usr/lib/python2.7/dist-packages/sensor_msgs/msg/_NavSatFix.py is in python-sensor-msgs 1.12.5-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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"""autogenerated by genpy from sensor_msgs/NavSatFix.msg. Do not edit."""
import sys
python3 = True if sys.hexversion > 0x03000000 else False
import genpy
import struct
import sensor_msgs.msg
import std_msgs.msg
class NavSatFix(genpy.Message):
_md5sum = "2d3a8cd499b9b4a0249fb98fd05cfa48"
_type = "sensor_msgs/NavSatFix"
_has_header = True #flag to mark the presence of a Header object
_full_text = """# Navigation Satellite fix for any Global Navigation Satellite System
#
# Specified using the WGS 84 reference ellipsoid
# header.stamp specifies the ROS time for this measurement (the
# corresponding satellite time may be reported using the
# sensor_msgs/TimeReference message).
#
# header.frame_id is the frame of reference reported by the satellite
# receiver, usually the location of the antenna. This is a
# Euclidean frame relative to the vehicle, not a reference
# ellipsoid.
Header header
# satellite fix status information
NavSatStatus status
# Latitude [degrees]. Positive is north of equator; negative is south.
float64 latitude
# Longitude [degrees]. Positive is east of prime meridian; negative is west.
float64 longitude
# Altitude [m]. Positive is above the WGS 84 ellipsoid
# (quiet NaN if no altitude is available).
float64 altitude
# Position covariance [m^2] defined relative to a tangential plane
# through the reported position. The components are East, North, and
# Up (ENU), in row-major order.
#
# Beware: this coordinate system exhibits singularities at the poles.
float64[9] position_covariance
# If the covariance of the fix is known, fill it in completely. If the
# GPS receiver provides the variance of each measurement, put them
# along the diagonal. If only Dilution of Precision is available,
# estimate an approximate covariance from that.
uint8 COVARIANCE_TYPE_UNKNOWN = 0
uint8 COVARIANCE_TYPE_APPROXIMATED = 1
uint8 COVARIANCE_TYPE_DIAGONAL_KNOWN = 2
uint8 COVARIANCE_TYPE_KNOWN = 3
uint8 position_covariance_type
================================================================================
MSG: std_msgs/Header
# Standard metadata for higher-level stamped data types.
# This is generally used to communicate timestamped data
# in a particular coordinate frame.
#
# sequence ID: consecutively increasing ID
uint32 seq
#Two-integer timestamp that is expressed as:
# * stamp.sec: seconds (stamp_secs) since epoch (in Python the variable is called 'secs')
# * stamp.nsec: nanoseconds since stamp_secs (in Python the variable is called 'nsecs')
# time-handling sugar is provided by the client library
time stamp
#Frame this data is associated with
# 0: no frame
# 1: global frame
string frame_id
================================================================================
MSG: sensor_msgs/NavSatStatus
# Navigation Satellite fix status for any Global Navigation Satellite System
# Whether to output an augmented fix is determined by both the fix
# type and the last time differential corrections were received. A
# fix is valid when status >= STATUS_FIX.
int8 STATUS_NO_FIX = -1 # unable to fix position
int8 STATUS_FIX = 0 # unaugmented fix
int8 STATUS_SBAS_FIX = 1 # with satellite-based augmentation
int8 STATUS_GBAS_FIX = 2 # with ground-based augmentation
int8 status
# Bits defining which Global Navigation Satellite System signals were
# used by the receiver.
uint16 SERVICE_GPS = 1
uint16 SERVICE_GLONASS = 2
uint16 SERVICE_COMPASS = 4 # includes BeiDou.
uint16 SERVICE_GALILEO = 8
uint16 service
"""
# Pseudo-constants
COVARIANCE_TYPE_UNKNOWN = 0
COVARIANCE_TYPE_APPROXIMATED = 1
COVARIANCE_TYPE_DIAGONAL_KNOWN = 2
COVARIANCE_TYPE_KNOWN = 3
__slots__ = ['header','status','latitude','longitude','altitude','position_covariance','position_covariance_type']
_slot_types = ['std_msgs/Header','sensor_msgs/NavSatStatus','float64','float64','float64','float64[9]','uint8']
def __init__(self, *args, **kwds):
"""
Constructor. Any message fields that are implicitly/explicitly
set to None will be assigned a default value. The recommend
use is keyword arguments as this is more robust to future message
changes. You cannot mix in-order arguments and keyword arguments.
The available fields are:
header,status,latitude,longitude,altitude,position_covariance,position_covariance_type
:param args: complete set of field values, in .msg order
:param kwds: use keyword arguments corresponding to message field names
to set specific fields.
"""
if args or kwds:
super(NavSatFix, self).__init__(*args, **kwds)
#message fields cannot be None, assign default values for those that are
if self.header is None:
self.header = std_msgs.msg.Header()
if self.status is None:
self.status = sensor_msgs.msg.NavSatStatus()
if self.latitude is None:
self.latitude = 0.
if self.longitude is None:
self.longitude = 0.
if self.altitude is None:
self.altitude = 0.
if self.position_covariance is None:
self.position_covariance = [0.] * 9
if self.position_covariance_type is None:
self.position_covariance_type = 0
else:
self.header = std_msgs.msg.Header()
self.status = sensor_msgs.msg.NavSatStatus()
self.latitude = 0.
self.longitude = 0.
self.altitude = 0.
self.position_covariance = [0.] * 9
self.position_covariance_type = 0
def _get_types(self):
"""
internal API method
"""
return self._slot_types
def serialize(self, buff):
"""
serialize message into buffer
:param buff: buffer, ``StringIO``
"""
try:
_x = self
buff.write(_get_struct_3I().pack(_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs))
_x = self.header.frame_id
length = len(_x)
if python3 or type(_x) == unicode:
_x = _x.encode('utf-8')
length = len(_x)
buff.write(struct.pack('<I%ss'%length, length, _x))
_x = self
buff.write(_get_struct_bH3d().pack(_x.status.status, _x.status.service, _x.latitude, _x.longitude, _x.altitude))
buff.write(_get_struct_9d().pack(*self.position_covariance))
buff.write(_get_struct_B().pack(self.position_covariance_type))
except struct.error as se: self._check_types(struct.error("%s: '%s' when writing '%s'" % (type(se), str(se), str(locals().get('_x', self)))))
except TypeError as te: self._check_types(ValueError("%s: '%s' when writing '%s'" % (type(te), str(te), str(locals().get('_x', self)))))
def deserialize(self, str):
"""
unpack serialized message in str into this message instance
:param str: byte array of serialized message, ``str``
"""
try:
if self.header is None:
self.header = std_msgs.msg.Header()
if self.status is None:
self.status = sensor_msgs.msg.NavSatStatus()
end = 0
_x = self
start = end
end += 12
(_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs,) = _get_struct_3I().unpack(str[start:end])
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
start = end
end += length
if python3:
self.header.frame_id = str[start:end].decode('utf-8')
else:
self.header.frame_id = str[start:end]
_x = self
start = end
end += 27
(_x.status.status, _x.status.service, _x.latitude, _x.longitude, _x.altitude,) = _get_struct_bH3d().unpack(str[start:end])
start = end
end += 72
self.position_covariance = _get_struct_9d().unpack(str[start:end])
start = end
end += 1
(self.position_covariance_type,) = _get_struct_B().unpack(str[start:end])
return self
except struct.error as e:
raise genpy.DeserializationError(e) #most likely buffer underfill
def serialize_numpy(self, buff, numpy):
"""
serialize message with numpy array types into buffer
:param buff: buffer, ``StringIO``
:param numpy: numpy python module
"""
try:
_x = self
buff.write(_get_struct_3I().pack(_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs))
_x = self.header.frame_id
length = len(_x)
if python3 or type(_x) == unicode:
_x = _x.encode('utf-8')
length = len(_x)
buff.write(struct.pack('<I%ss'%length, length, _x))
_x = self
buff.write(_get_struct_bH3d().pack(_x.status.status, _x.status.service, _x.latitude, _x.longitude, _x.altitude))
buff.write(self.position_covariance.tostring())
buff.write(_get_struct_B().pack(self.position_covariance_type))
except struct.error as se: self._check_types(struct.error("%s: '%s' when writing '%s'" % (type(se), str(se), str(locals().get('_x', self)))))
except TypeError as te: self._check_types(ValueError("%s: '%s' when writing '%s'" % (type(te), str(te), str(locals().get('_x', self)))))
def deserialize_numpy(self, str, numpy):
"""
unpack serialized message in str into this message instance using numpy for array types
:param str: byte array of serialized message, ``str``
:param numpy: numpy python module
"""
try:
if self.header is None:
self.header = std_msgs.msg.Header()
if self.status is None:
self.status = sensor_msgs.msg.NavSatStatus()
end = 0
_x = self
start = end
end += 12
(_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs,) = _get_struct_3I().unpack(str[start:end])
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
start = end
end += length
if python3:
self.header.frame_id = str[start:end].decode('utf-8')
else:
self.header.frame_id = str[start:end]
_x = self
start = end
end += 27
(_x.status.status, _x.status.service, _x.latitude, _x.longitude, _x.altitude,) = _get_struct_bH3d().unpack(str[start:end])
start = end
end += 72
self.position_covariance = numpy.frombuffer(str[start:end], dtype=numpy.float64, count=9)
start = end
end += 1
(self.position_covariance_type,) = _get_struct_B().unpack(str[start:end])
return self
except struct.error as e:
raise genpy.DeserializationError(e) #most likely buffer underfill
_struct_I = genpy.struct_I
def _get_struct_I():
global _struct_I
return _struct_I
_struct_3I = None
def _get_struct_3I():
global _struct_3I
if _struct_3I is None:
_struct_3I = struct.Struct("<3I")
return _struct_3I
_struct_bH3d = None
def _get_struct_bH3d():
global _struct_bH3d
if _struct_bH3d is None:
_struct_bH3d = struct.Struct("<bH3d")
return _struct_bH3d
_struct_9d = None
def _get_struct_9d():
global _struct_9d
if _struct_9d is None:
_struct_9d = struct.Struct("<9d")
return _struct_9d
_struct_B = None
def _get_struct_B():
global _struct_B
if _struct_B is None:
_struct_B = struct.Struct("<B")
return _struct_B
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