Accession Number:
ADA180632
Title:
Non-Linear Contour-to-Grid Digital Interpolation,
Descriptive Note:
Corporate Author:
ARMY ENGINEER TOPOGRAPHIC LABS FORT BELVOIR VA
Personal Author(s):
Report Date:
1986-10-10
Pagination or Media Count:
11.0
Abstract:
A technical approach to teh task of performing a contour to grid conversion using nonlinear interpolation has been studied. The approach consists of reconstructing a terrain surface from the digitized contour lines on a map. The approximating surface is defined in terms of a partition of the region into irregular triangles obtained by a Voronoi method. The vertices of the triangles are selected by sampling a large set of digitized contour data with a tolerance band technique. The result is a smooth synthetic surface with which the elevation of any given point can be calculated. Therefore, grids of any given dimensions can be generated.
Descriptors:
Subject Categories:
- Cartography and Aerial Photography
- Theoretical Mathematics