Navigation system utilizing locus data compression

摘要: There is disclosed a navigation system adapted to support driving of moving body such as an automotive vehicle. This determines present position in which the mounted display map information corresponding and determined position, store, locus data, route through advanced movement information. Storing data carried out by detecting traveling azimuth judge change thereby compress only predetermined range before after where changed. Further, coordinate values at changed are stored data. In addition, instructed collection zone or preserved with respect plurality zones run past designated thereof.