Polygonization and Topological Editing at the Bureau of the Census

By Saalfeld, Alan

Book Id: WPLBN0000601035
Format Type: PDF eBook
File Size: 649,235 KB.
Reproduction Date: 2005

Title:	Polygonization and Topological Editing at the Bureau of the Census
Author:	Saalfeld, Alan
Volume:
Language:	English
Subject:	Government publications, Census., Census report
Collections:	U.S. Census Bureau Collection
Historic Publication Date:
Publisher:	U.S. Census Bureau Department


Citation APA MLA Chicago Saalfeld, A. (n.d.). Polygonization and Topological Editing at the Bureau of the Census. Retrieved from http://self.gutenberg.org/

Description
Statistical Reference Document

Excerpt
Introduction: The TOPOLY program evolved from an earlier planar sweep program and still retains some of its characteristics. A planar sweep program labels each unique polygon in a graph by visiting each node in the order it would be visited by a line sweeping across the graph (Nievergelt and Preparata, 1982). When 8t 8 node, the algorithm will measure that any few polygon labels placed upon the graph are consistent with existing labels previously applied. The planar sweep 8lgorithm keeps track of the regions currently under this line and ... check for undiscovered intersections of the ah88 Or ... contiguous parts of the graph (islands that are uncovered is the line sweeps over ...

Table of Contents
NA