/usr/lib/python2.7/dist-packages/sensor_msgs/msg/_PointCloud.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/PointCloud.msg. Do not edit."""
import sys
python3 = True if sys.hexversion > 0x03000000 else False
import genpy
import struct
import sensor_msgs.msg
import geometry_msgs.msg
import std_msgs.msg
class PointCloud(genpy.Message):
_md5sum = "d8e9c3f5afbdd8a130fd1d2763945fca"
_type = "sensor_msgs/PointCloud"
_has_header = True #flag to mark the presence of a Header object
_full_text = """# This message holds a collection of 3d points, plus optional additional
# information about each point.
# Time of sensor data acquisition, coordinate frame ID.
Header header
# Array of 3d points. Each Point32 should be interpreted as a 3d point
# in the frame given in the header.
geometry_msgs/Point32[] points
# Each channel should have the same number of elements as points array,
# and the data in each channel should correspond 1:1 with each point.
# Channel names in common practice are listed in ChannelFloat32.msg.
ChannelFloat32[] channels
================================================================================
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: geometry_msgs/Point32
# This contains the position of a point in free space(with 32 bits of precision).
# It is recommeded to use Point wherever possible instead of Point32.
#
# This recommendation is to promote interoperability.
#
# This message is designed to take up less space when sending
# lots of points at once, as in the case of a PointCloud.
float32 x
float32 y
float32 z
================================================================================
MSG: sensor_msgs/ChannelFloat32
# This message is used by the PointCloud message to hold optional data
# associated with each point in the cloud. The length of the values
# array should be the same as the length of the points array in the
# PointCloud, and each value should be associated with the corresponding
# point.
# Channel names in existing practice include:
# "u", "v" - row and column (respectively) in the left stereo image.
# This is opposite to usual conventions but remains for
# historical reasons. The newer PointCloud2 message has no
# such problem.
# "rgb" - For point clouds produced by color stereo cameras. uint8
# (R,G,B) values packed into the least significant 24 bits,
# in order.
# "intensity" - laser or pixel intensity.
# "distance"
# The channel name should give semantics of the channel (e.g.
# "intensity" instead of "value").
string name
# The values array should be 1-1 with the elements of the associated
# PointCloud.
float32[] values
"""
__slots__ = ['header','points','channels']
_slot_types = ['std_msgs/Header','geometry_msgs/Point32[]','sensor_msgs/ChannelFloat32[]']
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,points,channels
: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(PointCloud, 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.points is None:
self.points = []
if self.channels is None:
self.channels = []
else:
self.header = std_msgs.msg.Header()
self.points = []
self.channels = []
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))
length = len(self.points)
buff.write(_struct_I.pack(length))
for val1 in self.points:
_x = val1
buff.write(_get_struct_3f().pack(_x.x, _x.y, _x.z))
length = len(self.channels)
buff.write(_struct_I.pack(length))
for val1 in self.channels:
_x = val1.name
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))
length = len(val1.values)
buff.write(_struct_I.pack(length))
pattern = '<%sf'%length
buff.write(struct.pack(pattern, *val1.values))
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.points is None:
self.points = None
if self.channels is None:
self.channels = None
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]
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
self.points = []
for i in range(0, length):
val1 = geometry_msgs.msg.Point32()
_x = val1
start = end
end += 12
(_x.x, _x.y, _x.z,) = _get_struct_3f().unpack(str[start:end])
self.points.append(val1)
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
self.channels = []
for i in range(0, length):
val1 = sensor_msgs.msg.ChannelFloat32()
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
start = end
end += length
if python3:
val1.name = str[start:end].decode('utf-8')
else:
val1.name = str[start:end]
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
pattern = '<%sf'%length
start = end
end += struct.calcsize(pattern)
val1.values = struct.unpack(pattern, str[start:end])
self.channels.append(val1)
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))
length = len(self.points)
buff.write(_struct_I.pack(length))
for val1 in self.points:
_x = val1
buff.write(_get_struct_3f().pack(_x.x, _x.y, _x.z))
length = len(self.channels)
buff.write(_struct_I.pack(length))
for val1 in self.channels:
_x = val1.name
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))
length = len(val1.values)
buff.write(_struct_I.pack(length))
pattern = '<%sf'%length
buff.write(val1.values.tostring())
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.points is None:
self.points = None
if self.channels is None:
self.channels = None
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]
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
self.points = []
for i in range(0, length):
val1 = geometry_msgs.msg.Point32()
_x = val1
start = end
end += 12
(_x.x, _x.y, _x.z,) = _get_struct_3f().unpack(str[start:end])
self.points.append(val1)
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
self.channels = []
for i in range(0, length):
val1 = sensor_msgs.msg.ChannelFloat32()
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
start = end
end += length
if python3:
val1.name = str[start:end].decode('utf-8')
else:
val1.name = str[start:end]
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
pattern = '<%sf'%length
start = end
end += struct.calcsize(pattern)
val1.values = numpy.frombuffer(str[start:end], dtype=numpy.float32, count=length)
self.channels.append(val1)
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_3f = None
def _get_struct_3f():
global _struct_3f
if _struct_3f is None:
_struct_3f = struct.Struct("<3f")
return _struct_3f
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