基于Mitab库的嵌入式GIS地图导航设计与实现

Design and implementation of embedded GIS map navigation based on Mitab library

利用嵌入式Linux操作系统和MIF格式地图数据源,设计了一种基于Mitab库的嵌入式GIS导航电子地图系统。分析了MIF数据文件的存储格式和地图对象模型,提出嵌入式GIS导航电子地图系统结构。采用图形用户界面系统MiniGUI开发,通过Mitab库读取矢量地图几何数据和属性数据,并进行地图数据坐标转换算法处理,实现了嵌入式GIS地图可视化导航功能。原型系统运行实例表明了模型的可行性和算法的有效性。

With embedded Linux operating system and map data sources of MapInfo Interchange Format（MIF）,a type of embedded GIS electronic map navigation system based on Mitab library is designed.By analyzing storage format of MapInfo Interchange data file and map objects models,the construction of embedded GIS electronic map navigation system is proposed.By taking graphic user interface system MiniGUI as developing tool,visual navigation functions for embedded GIS electronic map are implemented by using Mitab library to read geometry data and attribute data of vector map and designing algorithm of map data coordinate transformation.An application case of prototype system validated the feasibility of the model and the effectiveness of the algorithm.