An Enhanced digital line graph design : a feature-based data model for digital spatial data bases that represent geographic phenomenon / Stephen C. Guptill, editor ; Kenneth J. Boyko [and four others], contributing authors.

Format:

Book

Government document

Author/Creator:

Boyko, Kenneth J., author.

Contributor:

Guptill, Stephen C., editor.

Geological Survey (U.S.), issuing body.

Series:

U.S. Geological Survey circular ; 1048.

U.S. Geological Survey circular ; 1048

Language:

English

Subjects (All):

Digital mapping.

Genre:

Online resources.

Physical Description:

1 online resource (1 volume (various pagings) : illustrations

Manufacture:

[Washington] : United States Government Printing Office, 1990.

Other Title:

Feature-based data model for digital spatial data bases that represent geographic phenomenon

Place of Publication:

[Reston, Virginia] : Department of the Interior, U.S. Geological Survey, 1990.

Summary:

In response to increasing information demands on its digital cartographic data, the U.S. Geological Survey has designed an enhanced version of the Digital Line Graph, termed Digital Line Graph - Enhanced (DLG-E). In the DLG-E model, the phenomena represented by geographic and cartographic data are termed entities. Entities represent individual phenomena in the real world.

Contents:

Preface

Abstract

A new design

Concepts of the DLG-E design

Definition of DLG-E features

Representation of features

Data model implementation

Summary and future research

Selected references

Appendices.

Notes:

Online resource; title from PDF title page (USGS viewed Feb. 7, 2019).

"A feature-based data model for digital spatial data bases that represent geographic phenomenon."

Electronic reproduction. [Place of publication not identified] : HathiTrust Digital Library, 2017.

Includes bibliographical references (pages 18-20).

Other Format:

Print version: Enhanced digital line graph design.

OCLC:

974489587

Access Restriction:

Use copy Restrictions unspecified