IDL支持下的滑坡可视化方法研究

Three-dimentional Visualization Study of Landslide Under IDL Support

以三峡库区榨坊坪滑坡体为例 ,详细阐述了滑坡体地面模型和滑动面三维模型的构建与可视化显示方法。利用集大型数据分析、可视化和跨平台应用开发为一体的最新可视化软件 IDL ,将 IDL中的 TRIANGUL ATE函数和TRIGRID函数相结合 ,建立了基于 Delaunay三角网的滑坡体规则格网地面模型和滑动面三维可视化模型 ,实现了该滑坡体的三维模拟与再现 ,为滑坡体的研究与分析提供了科学、方便、强有力的依据。

The design and visualization of digital terrain model and 3-D sliding surface model were presented in detail by using Zhafangping Landslide in reservoir area of three gorges as an example. Using the latest visual software, IDL with the large-scale data analysis,visually analysis and stepping platform application and development, combining TRIGRID function with TRIANGULATE function in IDL and based on Delaunay triangular network, regular network terrain model and 3-D sliding surface model of Landslide body were set up. It shows that three-dimensional simulation and reproduction of the landslide body offers scientific, convenient, powerful approach towards the study and control of landslide.