Entity-oriented spatial coding scheme and its application for spatial topology

Abstract

Based on a newly proposed spatial data model Spatial Chromatic Model (SCM), we developed a spatial coding scheme, called the full-coded Ordinary Arranged Chromatic Diagram (full-OACD). As a type of spatial tessellation, full-OACD partitions a geographic space into a number of subspaces, such as cells, edges, and vertices. These subspaces are called spatial particles and are assigned with unique codes chromatic codes. The generation, structure, computation, and properties of full-OACD are introduced. Relations between particulate chromatic codes and spatial topology are investigated. Full-OACD is a kind of new discrete spatial coordinate system where the information of real-world entities is embedded. Full-OACD provides an informative and meaningful spatial coding framework for spatial topological analysis and many other potential applications in geospatial information science.

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