南水北调中线工程三维展示系统建设初探

Preliminary Research on 3-Dimensional Display System of the Middle Route Project of the South-to-North Water Transfer

利用三维GIS技术,建立了南水北调中线工程沿线的三维场景,并在三维场景中真实的展现了沿线的地形、地貌、河流、水系、水利工程等。在三维展示系统中,可进行地理信息、工程信息的查询。在三维场景的基础上,与水动力学计算模型连接,将计算模型结果展示在三维场景中,同时把计算过程中的闸门调度情况和水位流量变化情况进行了动态跟踪式的展示。为南水北调中线工程的管理和研究提供了三维平台。

In the paper,Geographic Information System（GIS） was used to build up 3-dimensional scene of the Middle Route of the South-to-North Water Transfer.The application of this technique efficiently demonstrates terrain,relief,rivers,water systems and associated water facilities.It also provides a system can facilitate the query of geographical and engineering information.Based on the 3-dimensional model,a hydraulic model was developed so as to dynamically monitor allocation and switch of the floodgates and ensuing changes of water levels.This system provides a 3-dimensional platform for the ongoing South-to-North Water Transfer Project.