/usr/lib/python2.7/dist-packages/std_msgs/msg/_Int32MultiArray.py is in python-std-msgs 0.5.10-4.
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 std_msgs/Int32MultiArray.msg. Do not edit."""
import sys
python3 = True if sys.hexversion > 0x03000000 else False
import genpy
import struct
import std_msgs.msg
class Int32MultiArray(genpy.Message):
_md5sum = "1d99f79f8b325b44fee908053e9c945b"
_type = "std_msgs/Int32MultiArray"
_has_header = False #flag to mark the presence of a Header object
_full_text = """# Please look at the MultiArrayLayout message definition for
# documentation on all multiarrays.
MultiArrayLayout layout # specification of data layout
int32[] data # array of data
================================================================================
MSG: std_msgs/MultiArrayLayout
# The multiarray declares a generic multi-dimensional array of a
# particular data type. Dimensions are ordered from outer most
# to inner most.
MultiArrayDimension[] dim # Array of dimension properties
uint32 data_offset # padding elements at front of data
# Accessors should ALWAYS be written in terms of dimension stride
# and specified outer-most dimension first.
#
# multiarray(i,j,k) = data[data_offset + dim_stride[1]*i + dim_stride[2]*j + k]
#
# A standard, 3-channel 640x480 image with interleaved color channels
# would be specified as:
#
# dim[0].label = "height"
# dim[0].size = 480
# dim[0].stride = 3*640*480 = 921600 (note dim[0] stride is just size of image)
# dim[1].label = "width"
# dim[1].size = 640
# dim[1].stride = 3*640 = 1920
# dim[2].label = "channel"
# dim[2].size = 3
# dim[2].stride = 3
#
# multiarray(i,j,k) refers to the ith row, jth column, and kth channel.
================================================================================
MSG: std_msgs/MultiArrayDimension
string label # label of given dimension
uint32 size # size of given dimension (in type units)
uint32 stride # stride of given dimension"""
__slots__ = ['layout','data']
_slot_types = ['std_msgs/MultiArrayLayout','int32[]']
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:
layout,data
: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(Int32MultiArray, self).__init__(*args, **kwds)
#message fields cannot be None, assign default values for those that are
if self.layout is None:
self.layout = std_msgs.msg.MultiArrayLayout()
if self.data is None:
self.data = []
else:
self.layout = std_msgs.msg.MultiArrayLayout()
self.data = []
def _get_types(self):
"""
internal API method
"""
return self._slot_types
def serialize(self, buff):
"""
serialize message into buffer
:param buff: buffer, ``StringIO``
"""
try:
length = len(self.layout.dim)
buff.write(_struct_I.pack(length))
for val1 in self.layout.dim:
_x = val1.label
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 = val1
buff.write(_get_struct_2I().pack(_x.size, _x.stride))
buff.write(_get_struct_I().pack(self.layout.data_offset))
length = len(self.data)
buff.write(_struct_I.pack(length))
pattern = '<%si'%length
buff.write(struct.pack(pattern, *self.data))
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.layout is None:
self.layout = std_msgs.msg.MultiArrayLayout()
end = 0
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
self.layout.dim = []
for i in range(0, length):
val1 = std_msgs.msg.MultiArrayDimension()
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
start = end
end += length
if python3:
val1.label = str[start:end].decode('utf-8')
else:
val1.label = str[start:end]
_x = val1
start = end
end += 8
(_x.size, _x.stride,) = _get_struct_2I().unpack(str[start:end])
self.layout.dim.append(val1)
start = end
end += 4
(self.layout.data_offset,) = _get_struct_I().unpack(str[start:end])
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
pattern = '<%si'%length
start = end
end += struct.calcsize(pattern)
self.data = struct.unpack(pattern, 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:
length = len(self.layout.dim)
buff.write(_struct_I.pack(length))
for val1 in self.layout.dim:
_x = val1.label
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 = val1
buff.write(_get_struct_2I().pack(_x.size, _x.stride))
buff.write(_get_struct_I().pack(self.layout.data_offset))
length = len(self.data)
buff.write(_struct_I.pack(length))
pattern = '<%si'%length
buff.write(self.data.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.layout is None:
self.layout = std_msgs.msg.MultiArrayLayout()
end = 0
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
self.layout.dim = []
for i in range(0, length):
val1 = std_msgs.msg.MultiArrayDimension()
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
start = end
end += length
if python3:
val1.label = str[start:end].decode('utf-8')
else:
val1.label = str[start:end]
_x = val1
start = end
end += 8
(_x.size, _x.stride,) = _get_struct_2I().unpack(str[start:end])
self.layout.dim.append(val1)
start = end
end += 4
(self.layout.data_offset,) = _get_struct_I().unpack(str[start:end])
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
pattern = '<%si'%length
start = end
end += struct.calcsize(pattern)
self.data = numpy.frombuffer(str[start:end], dtype=numpy.int32, count=length)
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_2I = None
def _get_struct_2I():
global _struct_2I
if _struct_2I is None:
_struct_2I = struct.Struct("<2I")
return _struct_2I
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