Accession Number:

ADA091855

Title:

SEEFAR: An Improved Model for Producing Line-of-Sight Maps

Descriptive Note:

Technical rept.

Corporate Author:

ARMY MATERIEL SYSTEMS ANALYSIS ACTIVITYABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1980-09-01

Pagination or Media Count:

89.0

Abstract:

This report describes an improved model for producing line-of-sight maps. Many models determine whether a target is within view by drawing a terrain profile between observer and target and examining it to see if it interferes with line of sight this requires generating a completely new profile for each target position. The new model avoids this time-consuming profile for each target position. The new model avoids this time-consuming profile generation by dynamically recording the characteristics of a running horizon as computations are made for points further away from the observer. For each target point, a check is made to determine whether the target is behind the horizon. This new approach results in a dramatic savings in both storage and computing time requirements. Author

Subject Categories:

  • Cartography and Aerial Photography
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE