Compressed Aeronautical Chart Access Software.

Abstract

The Compressed Aeronautical Chart (CAC) data base is a global library of compressed, scanned, aeronautical charts that support Navy and Marine Corps aircraft moving-map displays and mission planning systems. The source for the CAC library is the National Imagery and Mapping Agency (NIMA) standard ARC (equal Arc-second Raster Chart) Digitized Raster Graphics (ADRG) image data set. ADRG is compressed and transformed into CAC via vector quantization and color compression techniques. The Map Data Formatting Facility (MDFF) of the Naval Research Laboratory, Stennis Space Center, MS (NRLSSC), produced the CAC library from April 1989 until September 1995, when NRLSSC transitioned the CAC Production System to NIMA. This port is a programmer's reference for accessing the CAC library via NRL-developed CAC Access Software, which is a user-callable suite of utility programs. The CAC Access Software was written in ANSI C and is currently running under the following operating systems: Open VMS, Unix, MS-DOS, Windows 3.1, Windows 95, and Macintosh.

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Document Details

Document Type
Technical Report
Publication Date
Jul 24, 1998
Accession Number
ADA352612

Entities

People

  • Maura Connor Lohrenz
  • Perry B. Wischow

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Buildings And Structures
  • Cartography
  • Compact Disks
  • Compression
  • Coordinate Systems
  • Data Sets
  • Databases
  • Geography
  • Graphics
  • Latitude
  • Longitude
  • Maps
  • Military Research
  • Operating Systems
  • Specifications
  • Standards
  • Two Dimensional

Readers

  • Database Systems and Applications
  • Geodesy
  • Maritime Security/Maritime Homeland Security

Technology Areas

  • Space