The rHEALPix Discrete Global Grid System

9th Symposium of the International Society for Digital Earth

地球科学;计算机科学

Gibb, R.G.^1

Informatics Team Leader, Landcare Research, Private Bag 11052, Palmerston North

4442, New Zealand^1

关键词: Cell geometries;    Discrete global grid systems;    Open geospatial consortium;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/34/1/012012/pdf
DOI  :  10.1088/1755-1315/34/1/012012

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

In light of the new standard for Discrete Global Grid Systems (DGGS) currently being proposed by the Open Geospatial Consortium (OGC), we revisit our earlier work on defining the rHEALPix DGGS. This paper briefly restates the definition of the rHEALPix DGGS and shows how the cell geometries, and schema for cell identifiers are both compliant with the standard. We then show that the fundamental topological operators, required by the standard can be implemented directly by manipulation of the cell identifiers without reference to or knowledge of traditional coordinates.