A Three-Dimensional Buffer Analysis Method Based on the 3D Discrete Global Grid System [PDF]
ISPRS International Journal of Geo-Information, 2021 Three-dimensional (3D) buffer analysis is among the basic functions of 3D spatial analysis, and it plays an important role in 3D geographic information systems.
Jinxin Wang +4 more
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Correlation Analysis and Reconstruction of the Geometric Evaluation Indicator System of the Discrete Global Grid [PDF]
ISPRS International Journal of Geo-Information, 2021 Although a Discrete Global Grid (DGG) is uniform in its initial subdivision, its geometric deformation increases with the level of subdivisions. The Goodchild Criteria are often used to evaluate the quality of DGGs.
Zheng Wang +5 more
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Lattice Quad-Tree Indexing Algorithm for a Hexagonal Discrete Global Grid System [PDF]
ISPRS International Journal of Geo-Information, 2020 Hexagonal discrete global grid systems are the preferred data models supporting multisource geospatial information fusion. Related research has aroused widespread concern in the academic community, and hierarchical indexing algorithms are one of the main
Jianbin Zhou +4 more
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General Method for Extending Discrete Global Grid Systems to Three Dimensions [PDF]
ISPRS International Journal of Geo-Information, 2020 Geospatial sensors are generating increasing amounts of three-dimensional (3D) data. While Discrete Global Grid Systems (DGGS) are a useful tool for integrating geospatial data, they provide no native support for 3D data.
Benjamin Ulmer +2 more
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Indexing Mixed Aperture Icosahedral Hexagonal Discrete Global Grid Systems [PDF]
ISPRS International Journal of Geo-Information, 2020 Discrete global grid systems (DGGSs) are an emerging multiresolution 3D model used to integrate and analyze big earth data. The characteristic of multiresolution is usually realized by hierarchically subdividing cells on the sphere using certain ...
Rui Wang +3 more
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Modeling and Expression of Vector Data in the Hexagonal Discrete Global Grid System [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 The Discrete Global Grid System (DGGS) is a new type of global spatial data model and is the extension of the plane grid on a sphere. The hexagon is usually used in the construction of DGGS for its advantageous geometric structure.
X. C. Tong +3 more
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Construction of quality evaluation indicator system for diamond discrete global grid systems [PDF]
International Journal of Digital Earth, 2023 Although the uniformity of diamond discrete global grid is essential for calculations and searches, geometric deformations increase with the level of divisions.
Fuli Luo +5 more
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An optimized hexagonal quadtree encoding and operation scheme for icosahedral hexagonal discrete global grid systems [PDF]
International Journal of Digital Earth, 2022 Although research on the discrete global grid systems (DGGSs) has become an essential issue in the era of big earth data, there is still a gap between the efficiency of current encoding and operation schemes for hexagonal DGGSs and the needs of practical
Long Zhao +4 more
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Employing discrete global grid systems for reproducible data obfuscation [PDF]
Scientific DataArchaeological heritage worldwide is threatened through deliberate destruction in particular site looting making the location of archaeological sites potentially sensitive data.
Gino Caspari +3 more
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An Improved Identification Code for City Components Based on Discrete Global Grid System [PDF]
ISPRS International Journal of Geo-Information, 2017 City components are important elements of a city, and their identification plays a key role in digital city management. Various identification codes have been proposed by different departments and systems over the years, however, their application has ...
Kun Qi +5 more
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