Interactive Graphical Input for Circuit Analysis

  • M. A. Maclean
  • H. G. Bown


A method is described for the interactive drawing of electrical circuit schematics with a computer-driven display. The aim is to create a very clear and unambiguous display and to simplify the interaction technique so that graphical input can become a working tool for the circuit engineer. The drawing and labelling of schematics in preparation for circuit analysis are illustrated by examples and the design of the programs and data structure are described.


Decimal Digit Circuit Analysis Electrical Node Marker Circle Ground Symbol 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    H.C. So “OLCA: An On-Line Circuit Analysis System”, Proc. IEEE Vol. 55, No. 11, pp. 1954–1961, November 1967.CrossRefGoogle Scholar
  2. 2.
    G.R. Hogsett, D.A. Nisewanger and A.C. O’Hara Jr. “An Application Experiment with On-Line Graphics-Aided ECAP”, 1967 International Solid- State Circuits Conference Digest of Technical Papers, pp. 72–73, Lewis Winner, New York, 1967.Google Scholar
  3. 3.
    M.L. Dertouzos “CIRCAL: On-Line Circuit Design”, Proc. IEEE Vol. 55, No. 5, pp. 637–654, May 1967.CrossRefGoogle Scholar
  4. 4.
    D.S. Evans and J. Katzenelson “Data Structure and Man-Machine Communication for Network Problems”, Proc. IEEE Vol. 55, No. 7, pp. 1135–1144, July 1967.CrossRefGoogle Scholar
  5. 5.
    F.F. Kuo, W.G. Magnuson Jr. and W.J. Walsh “Computer Graphics in Electronic Design”, Datamation Vol. 15, No. 3, pp. 71–79, March 1969 (see also IEEE Transactions on Circuit Theory, Vol. CT-16 No. 3, pp. 389–391, August 1969 ).Google Scholar
  6. 6.
    I.E. Sutherland “Sketchpad: A Man-Machine Graphical Communication System”, M.I.T. Lincoln Laboratory Technical Report No. 296, January 1963 (see also Proceedings Spring Joint Computer Conference, 1963, Vol. 23, pp. 329–346, Spartan Books Inc., Baltimore, 1963 ).Google Scholar
  7. 7.
    Control Data Corporation “Digigraphic System 270 System Information Manual” Control Data Corp. Burlington, 1965.Google Scholar
  8. 8.
    H.S. McDonald, W.H. Ninke and D.R. Weiler “A Direct-View CRT Console for Remote Computing” 1967 International Solid-State Circuits Conference Digest of Technical Papers, pp. 68–69, Lewis Winner, New York, 1967.Google Scholar

Copyright information

© Plenum Publishing Company Ltd. 1971

Authors and Affiliations

  • M. A. Maclean
    • 1
  • H. G. Bown
    • 1
  1. 1.Department of CommunicationsShirley BayOttawa 2Canada

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