流域三维可视化与数值模拟的实时交互运行

提出了一种简单易行的计算显示数据接口,在流域三维模拟仿真中,在保持真实性基础上,还有良好的实时性和交互性。采用调整显示时间间隔和插值处理的方法解决计算速度问题,显示系统采用C 平台集成,后台数学模型由Fortran语言编写,两者之间运用管道传输与事件触发机制实现数据传输,在PC机上实现了数模计算与虚拟仿真相结合的实时交互功能,并以都江堰工程为例说明了具体实现方法。在流域三维仿真系统实时性和交互性设计方面取得了进展。

Real-time interface for 3-D visualization and numerical simulation of a river watershed

This paper describes an effecient data interface for the simulation of river valleys and entire watersheds. The calculational speed is improved by adjusting the time intervals for the display data interpolation. The display system was developed using C with the calculation system developed using Fortran, the data transport for the real-time display and the calculations uses pipe lined transport and event triggers. The method provides a real-time interface for the 3-D simulation of the watershed on a personal computer. The system was then applied to simulate the Dujiangyan water system. The method greatly improves the quality of real-time interfaces of 3-D simulations.