GRAPHIDI: A System for Expanding Dartmouth Basic to Produce Graphical Displays Within a Time-Sharing Environment. Volume I.
Abstract
GRAPHIDI (Graphical Interpretive Display System) is a system for expanding Dartmouth Basic to generate and manipulate pictures and diagrams on a number of graphical output devices available in time-sharing. The user enters a program written in Basic, including a series of graphical commands as part of his program. GRAPHIDI interprets this coding and creates a new Basic program which carries out the standard Basic instructions and outputs the necessary graphical information to the Digital Equipment Corporation PDP-9 Graphic-2 or Tektronix T4002 scopes for visual display, or to the Timeshare Devices, Inc. (TDI) plotter for hard copy. A special graphical definition capability enables a user to define a set of composite or graphical eeentities using names of his choosing. GRAPHIDI builds a hierarchical inked data structure that makes possible a variety of manipulative commands for rotating, moving, magnifying, or deleting ntities displayed. A window command enables the user to view only a selected portion of the entire drawing. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1971
- Accession Number
- AD0732207
Entities
People
- Alex P. Conn
Organizations
- Dartmouth College