基于EPS和VRML技术的水利三维地形生成的研究

Research on Building 3D Landscape of Water Project Based on EPS and VRML Technique

目前国内对于局部已测离散点如何生成地形景观图研究文献很少,特别是对局部离散点如何生成地形景观可视化的研究文献更少。结合EPS文件,利用局部离散点构建水利工程常用的等高线地形图以及格网数字高程模型(DEM)。得到一套通用的虚拟现实建模语言(VRML)实现水利工程三维地形场景的可视化方法,从而可以实现水利工程土方开挖、回填计算、典型断面分析等的可视化、动态化的计算与分析。结果表明,该景观图生成文件具有通用性、交互性等功能,为水利工程的研究和设计提供了一种新的方法和手段。

At present,there is a little information in China about how to generate the landscape visualization with local discrete points.Here,combining with EPS and using the local discrete points to build a contour map and a grid digital elevation model（DEM）,a set of virtual and realistic modeling language（VRML） is obtained to realize 3D landscape visualization of water conservancy projects,so as to realize the visual and dynamic computing and analysis for the earth excavation and backfill and the typical cross-section analysis of water conservancy projects.The results show that it is a new and universal method for the research and design of water conservancy projects.