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基于缓存技术实时交互绘制大场景流域模型


□ 李小根 王宗敏 黄志全

   (1.郑州大学 水利与环境学院, 郑州 450001; 2.华北水利水电学院 岩土工程系, 郑州 450011)
  
  摘 要:
  应用缓存技术将中央处理器将要运行的数据文件直接调入缓冲存储器,以提高中央处理器的有效资源利用率和大场景流域模型绘制的实时交互性。基于此目的,探讨了各种存储器之间的差异性以及当前实时交互绘制大场景流域模型所存在的问题,分析了实现缓存技术的方法,并给出了主要的算法步骤,结果表明:应用缓存技术不仅能够充分利用中央处理器的有效资源,而且可以提高大场景流域模型绘制的实时交互性,使绘制大场景流域模型更加流畅、更加连贯。
  关键词:模型; 缓存技术; 存储器; 实时交互绘制
  中图分类号:TP391文献标志码:A
  文章编号:1001-3695(2009)04-1297-02
  
  Visualization oflarge scene watershed model in real-time and interactive manner based on cache technique
  LI Xiao-gen1,2, WANG Zong-min1, HUANG Zhi-quan2
  
  (1.School of Water Conservancy & Environment, Zhengzhou University, Zhengzhou 450001, China; 2.Dept. of Geotechnical Engineering, North China Institute of Water Conservancy & Hydroelectric Power, Zhengzhou 450011, China)
  
  Abstract:
  To apply cache technology fold the data files which were going to be operated in CPU to the buffer memory directly, which could improve the resources utilization rate of the CPU effectively and the visualizing of the large scene watershed model in real-time interactive manner. Based on this goal, firstly discussed the differences between all kinds of memory as well as the current questions of the visualizing the large scene watershed model in real-timeinteractive manner , and then analyzed the methods to achieve cache technology, and presented the main algorithm steps to fold the data files. The results show that: the cache technique can not only take full advantage of the CPU resources effectively, but also improve the visualizing of the large scene watershed model in real-time interactive manner, which can make the visualizing of the large scene watrshed model more smooth and more coherent. ......
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