serialize method
Implementation
@override
ByteData serialize() {
var data_ = ByteData(mavlinkEncodedLength);
data_.setInt32(0, lat, Endian.little);
data_.setInt32(4, lon, Endian.little);
data_.setUint16(8, gridSpacing, Endian.little);
MavlinkMessage.setInt16List(data_, 10, data);
data_.setUint8(42, gridbit);
return data_;
}