Digest: A Primer for the International GIS Standard

About this book

DIGEST is the Digital Geographic Information Exchange Standard for interoperability and compatibility among national and multinational systems and users. This easily readable primer helps readers understand and use the standard to customize and/or design GIS programs.

Contents

Introduction * History * Key Terms and Concepts * Glossary * Database Organization * Sample VPF * Organization * Data Structures * Introduction * Naming Convention * Table Structure * Data Types * Features and Feature Classes * Introduction * Organization * Types * Implementation * Feature Class Schema * Primitives * Introduction * Types * Topology * Wing-Edge Topology * Topology Level * Implementation * Index and Tiling * Feature Join Index * Thematic Index * Spatial Index * Tiling * Tiled Topology * Boundary Conditions * Universe Face * Meta-Data * Transmittal Data * Database Description * Data Quality * Properties * DQ Library * Database Navigation * Spatial Query * Attribute Query

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