serialize method
Implementation
@override
ByteData serialize() {
var data_ = ByteData(mavlinkEncodedLength);
data_.setUint64(0, timeUsec, Endian.little);
MavlinkMessage.setFloat32List(data_, 8, q);
data_.setFloat32(24, x, Endian.little);
data_.setFloat32(28, y, Endian.little);
data_.setFloat32(32, z, Endian.little);
MavlinkMessage.setFloat32List(data_, 36, covariance);
return data_;
}