def deserialize(self, str):
"""
unpack serialized message in str into this message instance
:param str: byte array of serialized message, ``str``
"""
try:
if self.dim is None:
self.dim = None
end = 0
start = end
end += 4
(length,) = _struct_I.unpack(str[start:end])
self.dim = []
for i in range(0, length):
val1 = std_msgs.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.dim.append(val1)
start = end
end += 4
(self.data_offset,) = _get_struct_I().unpack(str[start:end])
return self
except struct.error as e:
raise genpy.DeserializationError(e) #most likely buffer underfill
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.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.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
