A Data Quantity Optimization Algorithm in Terrain Visualization

摘要：

In order to ascertain appropriate data quantity in terrain visualization for some certain computers,the relationship model of FPS and data quantity has been put forward in this paper.Regarding the model,the time of a whole terrain visualization cycle is divided into two parts:data unrelated time and data related time.Based on the relationship model,a data optimization algorithm is developed,and the influences of timer error and data reading error are considered in terms of the algorithm.The algorithm is tested in a terrain visualization system developed with C++,FLTK and OpenGL.The results of experiment shows that the algorithm can evaluate and quantify computers visualization performance,and calculate the precise triangle amount quickly,thus the rendering rate of terrain visualization system can be controlled accurately.

关键词： Visualization of Terrain Auto-adapted FPS Data Optimization

作者: LI Yabin GONG Jianhua

作者单位: State Key Lab of Remote Sensing Science,Institute of Remote Sensing Applications,Chinese Academy of Sciences,Beijing 100101,China

会议类型: 国际会议

会议名称: 第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)

会议地点: 广州

会议语种:英文

在线出版日期: 2008-06-28（万方平台首次上网日期，不代表论文的发表时间）