Access Restriction

Author Barrett, R. C. ♦ Jordan, B. W.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Graphics ♦ Raster display ♦ Line drawing ♦ Dot generation ♦ Discrete image ♦ Matrix displays ♦ Scan conversion
Abstract Raster scan computer graphics with “real time” character generators have previously been limited to alphanumeric characters. A display has been described which extends the capabilities of this organization to include general graphics.Two fundamentally different scan conversion algorithms which have been developed to support this display are presented. One is most suitable to noninteractive applications and the other to interactive applications. The algorithms were implemented in Fortran on the CDC6400 computer. Results obtained from the implementations show that the noninteractive algorithms can significantly reduce display file storage requirements at little cost in execution time over that of a conventional raster display. The interactive algorithm can improve response time and reduce storage requirements.
Description Affiliation: Northwestern Univ., Evanston, IL (Jordan, B. W.) || Hughes Aircraft Co., Culver City, CA (Barrett, R. C.)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-08-01
Publisher Place New York
Journal Communications of the ACM (CACM)
Volume Number 17
Issue Number 3
Page Count 7
Starting Page 157
Ending Page 163

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Source: ACM Digital Library