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Title: Contour-to-grid interpolation with nonlinear finite elements : a feasibility study
Authors: United States. National Bureau of Standards.
Center for Applied Mathematics (U.S.)
Mandel, Betty.
Bernal, Javier.
Witzgall, Christoph.
Keywords: Cartography
Clough-Tocher element
Contour line
Delaunay diagram
Digitized data
Finite element method
Line generalization
Surface interpolation
Synthetic surface
Terrain modeling
Theissen diagram
Tolerance band
Voronoi diagram
Publisher: U.S. Army Engineer Topographic Laboratories.
Engineer Research and Development Center (U.S.)
Series/Report no.: ETL ; 0472.
Description: Technical report
Abstract: The U.S. Anny Engineer Topographic Laboratories and the National Bureau of Standards investigated the computational feasibility of developing a contour-to-grid algorithm by: (l) sampling a large set of digitized cartographic contour data with a tolerance band technique, (2) its subsequent triangulation with a Voronoi (Delaunay, Thiessen) method and (3) the construction of an interpolating smooth synthetic surface from which grids can be generated at any given interval. This report presents a discussion on the results obtained.
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