Accession Number:

AD0743206

Title:

PICTUR--A Computer Program for Description, Manipulation, and Display of Straight-Line Drawings.

Descriptive Note:

Master's thesis,

Corporate Author:

OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Personal Author(s):

• Hawkins,Timothy Craig

Report Date:

1972-03-01

Pagination or Media Count:

202.0

Abstract:

One large class of pictures handled in computer graphics is the class of straight-line drawings, and one means of representing such drawings is by the use of string languages. The purpose of this paper is to present a computer program, called PICTUR, which employs a modification of the PADEL string language to describe line drawings for the purposes of topological manipulation and display. PICTUR accepts a line drawing in the form of a modified-PADEL string description and translates it into a corresponding internal list form and performs topological transformations on this description and displays the results on command from the user. The results may be displayed either pictorially, on a cathode ray tube, or by printout of the string description for the transformed picture. All pictures handled by PICTUR are assumed to be transparent. No attempt is made to solve the hidden line problem. Author

Descriptors:

• (*COMPUTER PROGRAMS
• GRAPHICS)
• PROGRAMMING LANGUAGES
• ALGORITHMS
• CONTROL SEQUENCES
• THESES

Subject Categories:

• Computer Programming and Software
• Computer Hardware

Distribution Statement:

APPROVED FOR PUBLIC RELEASE