摘要： 介绍了创建一个基于真实地景的三维飞行再现系统的方法和过程。阐述了大面积三维地形的生成和管理技术，包括地理数据格式的转化方法、地形数据的分割和LOD 技术，并引入了事件驱动机制。利用上述技术和方法实现了一个三维飞行再现系统，实验结果表明，该系统具有场景逼真、漫游流畅、显示信息丰富等特点。

关键词: 飞行再现；大面积地形模型；事件驱动

Abstract: This paper introduces the method and process for establishing a flight replay system based on real terrains. The creation and management techniques for large area 3D terrains, including the transforming method for geographical data formats, the LOD techniques and the techniques for segmenting the terrain data, are emphasized, and the event-drive mechanism is introduced. These techniques and methods are used to establish a flight replay system. The experiment results show that vivid scene, fluent browse and abundant information are presented in the 3D flight replay system.

Key words: Flight replay; Large area terrain model; Event-drive