Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-4/W2, 83-88, 2013
https://doi.org/10.5194/isprsarchives-XL-4-W2-83-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
25 Oct 2013
Global 3D-Grids Based on Great Circle Arc QTM Sphere Octree and Its Application
J. X. Wang, Y. H. Li, Y. S. Zheng, and J. N. Liu School of Water Conservancy & Environment , Zhengzhou Universityh, Zhengzhou, Cina
Keywords: Discrete Global Grids (DGGs), Earth System Spatial Grid(ESSG), Quaternary Triangula Mesh (QTM), Global GIS, Spatial Data Model, Digital Earth Abstract. With the development of computers, network communications, scientific computing, mapping remote sensing and geographic information technologies, Discrete Global Grids (DGGs) and Earth System Spatial Grid(ESSG)have become the integrated spatial data model facing the large-scale and global-scale problems and the complex geo-computation. This paper discusses the property and character of the global spatial data at first. Then it introduces the grid division system based on large arc QTM octree and compares this scheme with degradation octree scheme. At last, it introduces the application of the scheme in land surface, underground and aerial geographic entity modeling. The study suggests that: the grid division system based on large arc QTM octree has the potential to integrate the whole spatial data of different layers of the geospatial. And it will have a broad application prospect in complex large-scale geographic computing.
Conference paper (PDF, 366 KB)


Citation: Wang, J. X., Li, Y. H., Zheng, Y. S., and Liu, J. N.: Global 3D-Grids Based on Great Circle Arc QTM Sphere Octree and Its Application, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-4/W2, 83-88, https://doi.org/10.5194/isprsarchives-XL-4-W2-83-2013, 2013.

BibTeX EndNote Reference Manager XML