Definition: A point access method which is two simultaneous grid files. Points are shuffled between the primary and secondary file to minimize the total size.
See also multilayer grid file.
Note: After [GG98].
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Entry modified 17 December 2004.
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Cite this as:
Paul E. Black, "twin grid file", in Dictionary of Algorithms and Data Structures [online], Paul E. Black, ed. 17 December 2004. (accessed TODAY) Available from: https://www.nist.gov/dads/HTML/twingridfl.html