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Title

Updating a Geographic Database: A Rubber-Sheet Adjustment Algorithm
Authors

Leendert van Gastel
Organization: University of Amsterdam
Department: Amstel Instituut
H.T. Uitermark
Journal / Anthology

The Mathematica Journal
Year: 2004
Volume: 9
Issue: 2
Page range: 359-370
Contents

Introduction; Warping; Rubber-Sheet Adjustment; The Similarity Transformation; The Covariance Matrix; Mathematical Background; Implementation; Example; Another Basis; Visualizing Results; Conclusion; References
Description

A rubber-sheet algorithm for warping is used to update a geographic database without altering points that are already known in the database. Mathematica allows a quick experimental validation of the theory and of existing FORTRAN legacy code.
Subject

*Social Science > Geography and Cartography
URL

http://www.mathematica-journal.com/issue/v9i2/contents/GeographicDatabase/GeographicDatabase.nb
http://www.mathematica-journal.com/issue/v9i2/contents/GeographicDatabase/GeographicDatabase_1.html