A New Hybrid Data Structure for 3D GIS

2006 ◽  
Author(s):  
Wu Huixin ◽  
Xue Huifeng
Keyword(s):  
Data Structure ◽  
3D Gis ◽  
Hybrid Data

scholarly journals BRLO-Tree: A Data Structure Used for 3D GIS Dynamic Scene Rendering

2015 ◽  
Vol 15 (4) ◽  
pp. 124-137 ◽  
Author(s):  
Wenju Wang ◽  
Zhang Xuan ◽  
Liujie Sun ◽  
Zhongmin Jiang ◽  
Jingjing Shang
Keyword(s):  
Data Structure ◽  
Large Scale ◽  
Three Dimensional ◽  
Level Of Detail ◽  
Dynamic Scene ◽  
3D Gis ◽  
Dynamic Scenes ◽  
Complex Dynamic ◽  
3D Objects ◽  
System A

Abstract BRLO-Tree (Block-R-Tree-Loose-Octree) is presented in this paper based on the R-Tree and Loose-Octree. The aim of the structure is to visualize the large scale and complex dynamic scenes in a 3D (three-dimensional) GIS (Geographic Information System). A new method of clustering rectangles to construct R-tree based on an improved K-means algorithm is put forward. Landform in 3D GIS is organized by R-Tree. The block is used as the basic rendering unit. The 3D objects of each block are respectively organized by a Loose-Octree. A series of techniques, based on this data structure, such as LOD (Level of Detail), relief impostors are integrated. The results of the tests show that BRLO-Tree cannot only support the large scale 3D GIS scene exhibition with wandering and fighting, but it can also efficiently manage the models in a dynamic scene. At the same time, a set of integrated techniques based on BRLO-Tree can make the rendering pictures more fluence and the rendering time vastly improved.

scholarly journals Fast Hybrid Data Structure for a Large Alphabet K-Mers Indexing for Whole Genome Alignment

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 161890-161897
Author(s):  
Rostislav Hrivnak ◽  
Petr Gajdos ◽  
Vaclav Snasel
Keyword(s):  
Data Structure ◽  
Genome Alignment ◽  
Whole Genome ◽  
Large Alphabet ◽  
Hybrid Data ◽  
Whole Genome Alignment

scholarly journals REVIEW OF 3D GIS DATA FUSION METHODS AND PROGRESS

2018 ◽  
Vol IV-3 ◽  
pp. 121-125 ◽  
Author(s):  
Wei Hua ◽  
Miaole Hou ◽  
Yungang Hu
Keyword(s):  
Data Structure ◽  
Data Fusion ◽  
3D Model ◽  
Data Display ◽  
3D Gis ◽  
Risk Monitoring ◽  
3D Data ◽  
Establishment Method ◽  
Gis Data ◽  
Fusion Methods

3D data fusion is a research hotspot in the field of computer vision and fine mapping, and plays an important role in fine measurement, risk monitoring, data display and other processes. At present, the research of 3D data fusion in the field of Surveying and mapping focuses on the 3D model fusion of terrain and ground objects. This paper summarizes the basic methods of 3D data fusion of terrain and ground objects in recent years, and classified the data structure and the establishment method of 3D model, and some of the most widely used fusion methods are analysed and commented.

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