Digital Terrain Elevation Data (DTED)

In support of military applications, the National Imagery and Mapping Agency (NIMA) has developed standard digital datasets (Digital Terrain Elevation Data (DTED®)) which is a uniform matrix of terrain elevation values which provides basic quantitative data for systems and applications that require terrain elevation, slope, and/or surface roughness information.

Typical name: XY.ext, XXYY.ext, XXXYYY.ext

namer$ argument to CreateIndexOverlay and CreateIndexCoverage

• ADigitNamer(digit%,step%,width#,bCount%,projection$)
  
  digit%
  the total number of digits in each tile name, in the range 2 to 32 inclusive
  
  step%
  the number of tiles across a grid cell, in the range 1 to 9 inclusive
  
  width#
  the tile grid cell width.
  
  bCount%
  

  True	The tilenames are sequential within a cell
  False	The tilenames are not sequential within a cell

  
  projection$
  a named Coordinate Reference System stored in a Named Object Library (without quote characters).

Properties

• Projection
  
• Scale
  

Properties

• Projection: _projection$
  The tile naming convention Coordinate Reference System.
  
  
• Scale: _scale#
  The tile scale.

See full list of Index Dataset Naming Conventions

Send comments on this topic.

Click to return to www.cadcorp.com

© Copyright 2000-2017 Computer Aided Development Corporation Limited (Cadcorp).