基于数据库的海量GDF导航电子地图数据处理方法

Processing of huge GDF navigation digital map Based on RDBMS

改进的GDF4.0拓展了GDF3.0标准的灵活性,允许非完全拓扑的表达方式存在,大大降低了GDF的处理难度,具有更强的实用性。目前全球最大的导航电子地图供应商Navteq和Tele Atlas所发布的GDF数据还是基于3.0的标准,本文借助于关系数据库作为中间平台,采用脚本和模板技术,结合一定的控制台程序开发,有效地将海量GDF3.0数据转化更实用的GDF4.0数据,并已应用在实际的工作中。

GDF4.0 standard extends the method to process the non-explicit topological geometries based on GDF3.0.It reduces the difficulty greatly for processing GDF data,makes it easy to use of GDF data.But in most cases,the data format is GDF3.0 in navigation marketing provided by the Navigation Map Data Providers such as Navteq,Tele Atlas,etc.This paper uses script and template technology based on RDBMS,and develops some required console programs,converts the GDF3.0 data into GDF4.0 efficiently and has applied it into practice in work.