Accession Number : AD0691484

Title :   ON THE COMPUTER DRAWING OF SOLID OBJECTS BOUNDED BY QUADRIC SURFACES.

Descriptive Note : Technical rept.,

Corporate Author : NEW YORK UNIV BRONX LAB FOR ELECTROSCIENCE RESEARCH

Personal Author(s) : Woon,Peter

Report Date : JUN 1969

Pagination or Media Count : 75

Abstract : The paper is a status report on a research project to develop and implement a computer procedure for generating line drawings of solid objects bounded by quadric surfaces. The emphasis of the research is on finding an efficient solution to the hidden-line problem, that is, the problem of determining which parts of an object are visible from a given vantage point. Some computational techniques for handling quadric surfaces are described. To avoid excessively time-consuming computation with high-degree nonlinear equations, certain curves are approximated by sequences of small straight-line segments. Special methods for treating such approximations are developed. (Author)

Descriptors :   (*COMPUTER PROGRAMMING, STEREOSCOPIC DISPLAY SYSTEMS), GRAPHICS, ANALYTIC GEOMETRY, SPACE PERCEPTION, INPUT OUTPUT DEVICES

Subject Categories : Computer Programming and Software
      Computer Hardware

Distribution Statement : APPROVED FOR PUBLIC RELEASE