一个基于J2ME的数字地图系统

IEEE International Symposium on Consumer Electronics, 2004 Pub Date : 2004-09-01 DOI:10.1109/ISCE.2004.1376014

M. Divya, T. Phan, N. Vun

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引用次数: 2

摘要

本文介绍了一个基于矢量图形的数字地图系统的设计与实现，该系统可以在支持J2ME (Java 2 Micro Edition)的平台上显示。电子地图?利用GPS协调器(1.7 r+ res .s)以GDF(地理数据文件)矢量图形格式编码。并存储在Map Server上的数据库中。便携式设备(笔记本、掌上电脑)。(以及其他移动设备)加上GPS接收器和无线局域网接收器。如果要获取地图信息，请立即将其GPS坐标发送到地图服务器。然后，服务器检索映射的相关部分。/将详细信息翻译成带有xml的xml格式。和t ? ansfer。支持J的显示设备的信息是什么?我standord。XML数据不仅包含地图信息，而且还包含相关的地图信息。S的对象，在地图上找到的。使用这个系统。地图可以按需生成，实时从数字数据库中生成，并流到便携式设备上。7，因为它是移动的。索引术语GDF, JZME，矢量图形，XML。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A J2ME based digital map system

The paper descrihes the design and implemenfatiun of a vector graphic based digi~al Map system that can be displayed on plaffivms that .support J2ME (Java 2 Micro Edition). The digifal map ir?formation is encoded in the GDF (Geographic Data File) vector graphic fbrmat utilizins GPS coordinators (1.7 r+rence.s. and is stored in a dutuhase on the Map Server. A portable device (notehook, PDA. ond other mohile devices) conpled with a GPS receiver and wireless LAN con reyue.sf for the map irlformation ut itr immediate vicini@ hv sending i ts GPS coordinates to the Map server. The server then retrieves the relevant section (Jf the map. /ranslates the detail into U XML-hosed Qrmat. and t?ansfer.s the infirmation to the display device that support J?ME standord. The XML data contains not onlv the map information: i t o1,so contains the relevant at/rihrrte.s of the ohjects ,found in the map. Using this .sy.stem. map can be generated on-demand,fram the digital database in real time and streumed to the portahle device.7 as it is moved around. Index Terms GDF, JZME, Vector Graphics, XML.

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IEEE International Symposium on Consumer Electronics, 2004

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