GRASS3, a language for interactive graphics

  • Authors:
  • Nola Donato

  • Affiliations:
  • Wizard Software, Chicago, Illinois

  • Venue:
  • AFIPS '81 Proceedings of the May 4-7, 1981, national computer conference
  • Year:
  • 1981

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Abstract

With the advance of technology, graphics devices are becoming more powerful and less expensive, making interactive graphics increasingly popular as a method of man-machine communication. Often nonprogrammers play a principal role in the design and implementation of graphics applications. Interactive graphics requires a high level of feedback both with the user and with the hardware. For these reasons, conventional programming languages are not well suited for such applications. This paper describes GRASS3, an interpretive language designed as a base for interactive graphics systems. The work derives from the author's thesis at the University of Illinois at Chicago Circle (UICC) and similar work done by the author for the Bally Manufacturing Corp. Design rationale for the language is given, followed by an overview including examples and a description of a specific real-time graphics system based on GRASS3.