Accession Number : ADP001210

Title :   An Algorithm to Display Generalised Cylinders,

Corporate Author : STANFORD UNIV CA DEPT OF COMPUTER SCIENCE

Personal Author(s) : Scott,Richard

Report Date : JUN 1983

Pagination or Media Count : 5

Abstract : This paper describes an algorithm, capable of parallel implementation, to calculate the perspective image of Generalised Cylinder, from arbitrary viewpoint, with hidden surface removal. It applies to a wide class of cylinders. The time taken will be proportional to the total length of the contours, independent of the number of edges. The algorithm solves for one closed-loop contour-generator at a time, testing its contour (in the image plane) for intersection with visible segments of previous contours. The input are the functions describing the object, along with the position of the eye; and the output are the visible surfaces and edges.

Descriptors :   *Algorithms, *Cylindrical bodies, *Image processing, Display systems, Contours, Edges, Segmented, Computations, Closed loop systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE