[1]王玉辉 郭刚[] 徐锡山.多分辨率点状地标实时渲染研究[J].计算机技术与发展,2012,(02):209-212.
　WANG Yu-hui,GUO Gang,XU Xi-shan.Research on Real Time Rendering of Multi-Resolution Point Features[J].,2012,(02):209-212.
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多分辨率点状地标实时渲染研究()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2012年02期
页码:
209-212
栏目:
应用开发研究
出版日期:
1900-01-01

文章信息/Info

Title:
Research on Real Time Rendering of Multi-Resolution Point Features
文章编号:
1673-629X（2012）02-0209-04
作者:
王玉辉1; 2 郭刚[3] 徐锡山1
[1]国防科学技术大学计算机学院[2]湖南第一师范学院信息科学与工程系[3]国防科学技术大学机电与自动化学院
Author(s):
WANG Yu-hui; GUO Gang; XU Xi-shan
[1]College of Computer,National University of Defense Technology[2]Department of Information Science and Engineering,Hunan First Normal University[3]Institute of Mechanical Engineering and Automation,National University of Defense Technology
关键词:
多分辨率; 点状地标; 空间分割; 渲染; 实时
Keywords:
multi-resolution;  point feature;  spatial partition;  rendering;  real time
分类号:
TP317.4
文献标志码:
A
摘要:
大规模点状地标的高性能实时渲染是地理信息系统和计算机图形技术面临的一项具有挑战性的难题。采用多分辨率的技术是解决上述问题的有效方法,其本质是通过动态控制显示的规模获得最佳的显示效果和性能。根据不同层次分辨率的点状地标的空间分布特点,提出一种基于空间分割和视点高度的显示规模控制方法,推导了帧时间计算公式,由此确定最佳空间分割尺寸。通过两个不同层次点状地标的空间分割和性能测试,给出了最佳空间分割尺寸,验证了基于空间分割的多分辨率点状地标渲染方法的正确性和有效性
Abstract:
High performance real time rendering of large scale point features is a challenging problem in geographic information system and computer graphics.Multi-resolution technique is usually an effective method to resolve the problem and the essential is to achieve the best rendering performance and effect through dynamic control of rendering scale.According to the spatial distribution of point features with different resolutions,a dynamic control method of rendering scale based on spatial partition and camera position is proposed.The formula of computing the frame time is also deduced to decide the best partition size.Through the partition and the performance test of two levels of point features,the best partition sizes are given and the rendering method of multi-resolution point features based on spatial partition is verified to be correct and validate

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备注/Memo

备注/Memo:
国家自然科学基金项目（91024030）王玉辉（1979-），女，天津人，硕士研究生，讲师，研究方向为虚拟现实、多分辨率地形数据显示；徐锡山，教授，硕士研究生导师，研究方向为人机交互技术、软件工程
更新日期/Last Update: 1900-01-01