在总结了地学可视化发展过程及目前三维可视化技术研究进展的基础上,针对大洋河流域河口的地理特征设计并实现了三维可视化场景,为流域河口生态安全评价三维演示系统的实现奠定了基础,并从地表模型的建立、建筑物模型的建立和虚拟场景的搭建三方面详细介绍了流域河口三维场景实现的具体方法。 On the basis of summarizing the development process of geoscience visualization and the current research progress of three-dimensional visualization technology, a three-dimensional visualization scene is designed and implemented according to the geographical features of the estuary of the ocean basin, which lays the foundation for the realization of the three-dimensional demonstration system of ecosystem safety assessment in estuarine watershed The concrete methods of realizing the three-dimensional scene of river estuary are introduced in detail from three aspects: the establishment of surface model, the building model and the establishment of virtual scene.