An Enhanced Digital Line Graph Design
An Enhanced Digital Line Graph Design

Author:

Publisher:

Published: 1990

Total Pages: 156

ISBN-13:

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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.

The Accuracy Of Spatial Databases
The Accuracy Of Spatial Databases

Author: Michael F. Goodchild

Publisher: CRC Press

Published: 1989-12-01

Total Pages: 207

ISBN-13: 0203490231

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The book addresses the problem of accuracy of spatial databases, and comprises of papers drawn from a wide range of physical and human systems, taking approaches which vary from statistical to descriptive. Together they present both a comprehensive review of existing knowledge, techniques and experience, and an analysis of critical research needs in this area of spatial data handling.