发明名称 MAP displaying system and map displaying method
摘要 <p>This invention relates to map displaying system, in which the reference altitude value determining means obtains a reference altitude value in accordance with the altitude data in the specific area, and the altitude data changing means performs the processing that each altitude both in the plane area and the solid area have the continuity from one area to another. And the 2-dimensional road data storage means stores the 2-dimensional ground road data and the 2-dimensional underground road data separately. Therefore, the 3-dimensional road data preparing means prepares the 3-dimensional ground road data in accordance with the 2-dimensioanl ground road data and the altitude data, while preparing the 3-dimensional underground road data in accordance with the 2-dimensional underground road data and the altitude data. &lt;IMAGE&gt;</p>
申请公布号 EP1107189(A2) 申请公布日期 2001.06.13
申请号 EP20000310916 申请日期 2000.12.08
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 SENDA, KEIICHI;ASAHARA, SHIGEO;NISHIMURA, KENJI;ARAKI, HITOSHI;YUDA, MASATO
分类号 G01C21/36;G06T17/05;(IPC1-7):G06T17/50;G08G1/096 主分类号 G01C21/36
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