Terrain three-dimensional visualization based on dynamic LOD quadtree arithmetic

Author

Yukun, Wang ; Yongli, Zhu

Author_Institution

Inst. of Comput. Sci. & Technol., Henan Polytech. Univ., Jiaozuo, China

fYear

2012

Firstpage

14

Lastpage

18

Abstract

LOD model based on quad-trees is improved on the basis of former researches. This model is applied to manage and organize terrain data. Node judgment rule is established to determine the detail degree of the present visual area. A new bidirectional way was given to recover the cracks according to distance. By programming, this method is proved to be able to generate multi-resolution terrain model continuously, improve the efficiency of terrain navigation, and realize smooth transition of the models with different resolution.

Keywords

data visualisation; quadtrees; terrain mapping; crack recovery; dynamic LOD quadtree arithmetic; multiresolution terrain model; node judgment rule; terrain navigation; terrain three-dimensional visualization; Computational modeling; Data models; Rendering (computer graphics); Solid modeling; Surface topography; Vectors; Visualization; LOD; Multi-resulution terrain; Node jedgment rule; Quad-tree;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control, Automatic Detection and High-End Equipment (ICADE), 2012 IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4673-1331-5

Type

conf

DOI

10.1109/ICADE.2012.6330090

Filename

6330090