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_NavSatFix.py

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"""autogenerated by genmsg_py from NavSatFix.msg. Do not edit."""
import roslib.message
import struct

import sensor_msgs.msg
import std_msgs.msg

class NavSatFix(roslib.message.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 specifies ROS time and frame of reference for this fix.
Header header

# satellite fix status information
sensor_msgs/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.
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.secs: seconds (stamp_secs) since epoch
# * stamp.nsecs: nanoseconds since stamp_secs
# 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 = ['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.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.,0.,0.,0.,0.,0.,0.,0.,0.]
      if self.position_covariance_type is None:
        self.position_covariance_type = 0
    else:
      self.header = std_msgs.msg._Header.Header()
      self.status = sensor_msgs.msg.NavSatStatus()
      self.latitude = 0.
      self.longitude = 0.
      self.altitude = 0.
      self.position_covariance = [0.,0.,0.,0.,0.,0.,0.,0.,0.]
      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
    @type  buff: StringIO
    """
    try:
      _x = self
      buff.write(_struct_3I.pack(_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs))
      _x = self.header.frame_id
      length = len(_x)
      buff.write(struct.pack('<I%ss'%length, length, _x))
      _x = self
      buff.write(_struct_bH3d.pack(_x.status.status, _x.status.service, _x.latitude, _x.longitude, _x.altitude))
      buff.write(_struct_9d.pack(*self.position_covariance))
      buff.write(_struct_B.pack(self.position_covariance_type))
    except struct.error as se: self._check_types(se)
    except TypeError as te: self._check_types(te)

  def deserialize(self, str):
    """
    unpack serialized message in str into this message instance
    @param str: byte array of serialized message
    @type  str: str
    """
    try:
      if self.header is None:
        self.header = std_msgs.msg._Header.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,) = _struct_3I.unpack(str[start:end])
      start = end
      end += 4
      (length,) = _struct_I.unpack(str[start:end])
      start = end
      end += length
      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,) = _struct_bH3d.unpack(str[start:end])
      start = end
      end += 72
      self.position_covariance = _struct_9d.unpack(str[start:end])
      start = end
      end += 1
      (self.position_covariance_type,) = _struct_B.unpack(str[start:end])
      return self
    except struct.error as e:
      raise roslib.message.DeserializationError(e) #most likely buffer underfill


  def serialize_numpy(self, buff, numpy):
    """
    serialize message with numpy array types into buffer
    @param buff: buffer
    @type  buff: StringIO
    @param numpy: numpy python module
    @type  numpy module
    """
    try:
      _x = self
      buff.write(_struct_3I.pack(_x.header.seq, _x.header.stamp.secs, _x.header.stamp.nsecs))
      _x = self.header.frame_id
      length = len(_x)
      buff.write(struct.pack('<I%ss'%length, length, _x))
      _x = self
      buff.write(_struct_bH3d.pack(_x.status.status, _x.status.service, _x.latitude, _x.longitude, _x.altitude))
      buff.write(self.position_covariance.tostring())
      buff.write(_struct_B.pack(self.position_covariance_type))
    except struct.error as se: self._check_types(se)
    except TypeError as te: self._check_types(te)

  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
    @type  str: str
    @param numpy: numpy python module
    @type  numpy: module
    """
    try:
      if self.header is None:
        self.header = std_msgs.msg._Header.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,) = _struct_3I.unpack(str[start:end])
      start = end
      end += 4
      (length,) = _struct_I.unpack(str[start:end])
      start = end
      end += length
      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,) = _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,) = _struct_B.unpack(str[start:end])
      return self
    except struct.error as e:
      raise roslib.message.DeserializationError(e) #most likely buffer underfill

_struct_I = roslib.message.struct_I
_struct_3I = struct.Struct("<3I")
_struct_bH3d = struct.Struct("<bH3d")
_struct_9d = struct.Struct("<9d")
_struct_B = struct.Struct("<B")

---

sensor_msgs
Author(s): Maintained by Tully Foote/tfoote@willowgarage.com
autogenerated on Fri Mar 1 15:05:53 2013