Public Domain Aeronautical Software (PDAS)

Hedgeley, David R., Jr.:
A General Solution to the HiddenLine Problem.
NASA Reference Publication 1085, March 1982.

A General Solution to the Silhouette Problem.
NASA Technical Paper 2695, February 1987.
 Hedgeley, David R., Jr.:
User's Guide for Sketch.
NASA Technical Memorandum 81369, February 1982.

Craidon, Charlotte B.:
A Description of the Langley Wireframe
Geometry Standard (LaWgs) Format.
NASA Technical Memorandum 85767, February 1985.
 Newman, William M.; and Sproull, Robert F.:
Principles of Interactive Computer Graphics.
McGrawHill, 1973, pp. 421454.
 Sutherland, Ivan E.; Sproull, Robert F.; and Shumacker, Robert A.:
A Characterization of Ten HiddenSurface Algorithms.
Computing Surveys, vol. 6, no. 1, March 1974, pp. 155.
 Hedgeley, David R., Jr.:
An Efficient Algorithm for Choosing the Degree of a Polynomial
to Approximate Discrete Nonoscillatory Data.
NASA Technical Memorandum 72854, April 1978.
 Hedgeley, David R., Jr.:
A Characterization of the Real Zeros of a
Particular Trancendental Function.
NASA Technical Paper 1420, March 1979.
Public Domain Aeronautical Software (PDAS)