虚拟三维场景与二维电子地图交互系统研究

提出并建立了一个虚拟三维场景与二维电子地图交互系统。介绍了系统的组成和各部分实现的功能。对虚拟场景的数据组织、场景数据读入、观察者位置的确定及交互功能的实现等给出解决方案，给出了实现的代码及画面。该系统利用二维电子地图简洁性、宏观性的特点，通过与虚拟三维场景间的互响应减少观察者在虚拟三维场景中漫游所产生的迷失感，在实际应用中取得了较好的效果。

Research on Dynamic Response System Between 3D Virtual Scene and 2D Digital Map

This paper presents an idea to construct a virtual scene system, which can respond with 2D digital map system one another, introduces the details of system’s frame and functions. It puts forward the method used to structure datum of virtual scene, the way to read in datum, how to get the accurate position of observer and how to realize the response function, and gives the program code and pictures. This dynamic response system resolves the limitation of 2D digital map and 3D virtual scene. It also combines the advantage of 2D digital map with the advantage of 3D virtual scene, which overcomes the abstraction of wandering astray of 3D virtual scene.