面向应用的3维虚拟场景技术研究

随着GIS的不断发展,地形的3维立体显示已成为主流,但传统方法生成模型过程复杂、真实感不强,无法在应用中提供足够的信息量。本文所述的3维虚拟场景生成方法,从实际应用出发,以真实地形地貌为标准,形成了一套完整的生成虚拟地形、地物、模拟天空的流程,并进行可视化实验。实验结果表明,使用该方法能够对实际场景进行仿真,模拟地物、植被的分布,达到小数据量实现3维虚拟场景的目的。最后,对所生成的示范系统进行验证分析,表明该方法简单、快速,对林业小班划分、农业土地管理等多个领域都有一定的实际参考价值。

Research on Application-Oriented 3D VirtuaI Scene

Along with the increasingly developing of GIS.3D solid displayed topography has become the main flow.It's well-know that the tradition method has several weak points,namely the model gemeration too complicated,short of real situation and can't provide enough information.The paper describes a new method to generate 3D virtual scene.This method can generate a set of virtual topography and features.Then visualization experiments are realized.The results show the method can emulate the real scenes,simulate the ...