Programmatic Data Structures for Modeling and Producing National Hydrographic Dataset Data

Author: Chuck Horne
Organization: Jordan, Jones, and Goulding, Inc.

240 Westwood Dr.
Athens, GA 30606
USA

Phone: 678-575-4252
Fax: 706-549-0423
chorne@jjg.com

Substantial portions of the production, conflation, or use of the USGS National Hydrography Dataset in ArcInfo format can benefit from an in-memory model of the relationships between the features. A variety of tools developed in our operation utilize these concepts to very significantly enhance the speed and accuracy of interacting with the data for conflating, quality checking, creating, or analyzing the data. This paper describes the underlying in-memory data structures.