基于Qt/Embedded的嵌入式导航电子地图实现

以杭州市MapInfo格式的桌面电子地图文件为数据来源,从中提取电子地图数据并根据需要对数据进行了裁减,针对嵌入式系统的特点选用合适的数据结构来组织数据;数据经地图投影、坐标转换后,在Linux操作系统下,以Qt/Embedded为开发环境,实现了一种方便、经济的嵌入式导航电子地图;最后,在宿主机(PC机)的qvfb(vitural framebuffer)里显示了实现的杭州市电子地图;实验结果表明,该地图具有放缩、漫游等功能,很适合应用在城市路径规划,车辆导航,城市应急系统等方面,且开发成本低,具有良好的推广应用价值。

Implementation of Embedded Navigation Electronic Map Based on Qt/Embedded

Take advantage of MapInfo format map file as data source,withdrow and reduce the electronic map data according to needs, choose suitable data structure to organize data for Embedded Systems.After map projection and coordinates conversion,under Linux operat- ing system and Qt/Emhedded development environment,present a method which can implement convenient and economic embedded naviga- tion electric map.Finally,demonstrate the results of experiment in qvfh of PC machine.The testing result indicates that the map has func- tions such as enlarging,decreasing,roaming and so on,it is suitable to be applied in city route planning,vehicle navigation,city emergency system etc,and save cost of development,have high application value.