A spatial indexing method for the hexagon discrete global grid system

Jin Ben · Xiaochong Tong · Rongguo Chen

17 citations0/0 files storedInternational Conference on Geoinformatics

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Historical Geography and Cartography Computational Geometry and Mesh Generation Digital Image Processing Techniques

Abstract

With the development of remote sensing technologies, computer friendly systems for the display and analysis of global geospatial information become more and more important. This paper concerns a method for computer representation and manipulation of global data based on multi-resolution subdivisions of regular polyhedra. A simple and efficient indexing of the cells of such a subdivision, called A3-coordinates, is introduced. These can be used to encode the 18 · 4n+1- 32 cells at the nth level of resolution of the octahedral aperture 4 hexagonal discrete global grid using 2n + 3 bits.

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References

2003Geodesic Discrete Global Grid Systems 2008Location coding on icosahedral aperture 3 hexagon discrete global grids

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2018A novel identifier scheme for the ISEA Aperture 3 Hexagon Discrete Global Grid System 2022An Information Fusion Model between GeoSOT Grid and Global Hexagonal Equal Area Grid

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