Multidimensional binary indexing for neighbourhood calculations in spatial partition trees

  • Authors:
  • José Poveda;Michael Gould

  • Affiliations:
  • Departamento de Lenguajes y Sistemas Informáticos, Universitat Jaume I, E-12071, Castellón, Spain;Departamento de Lenguajes y Sistemas Informáticos, Universitat Jaume I, E-12071, Castellón, Spain

  • Venue:
  • Computers & Geosciences
  • Year:
  • 2005

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Abstract

We present a binary array encoding (location arrays) of the nodes in a spatial partition tree representing spaces of dimension k. This framework facilitates tree traversal for optimizing access speed, and also supports simplified calculation of the neighbourhood of a subinterval of a particular partition. After defining the encoding we present a neighbour determination algorithm which extends work carried out by Samet, Goodchild and others on quadtrees, of particular interest when managing large data volumes during real-time terrain flyovers. The primary extension is that the encoding and the neighbour determination algorithm extend to arbitrary dimensions beyond the 2-d quadtree case.