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Interactive computer aided design system

  • US 4,451,895 A
  • Filed: 06/09/1983
  • Issued: 05/29/1984
  • Est. Priority Date: 07/17/1980
  • Status: Expired due to Fees
First Claim
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1. A computer aided design system for creating a design on a graphics screen by instructions entered through a separated function screen comprising:

  • a work station having a work surface including within said surface a function screen and further having, extending vertically above said surface, a graphics screen, separate from said function screen, for displaying a design in creation;

    means for driving a portion of said function screen to display a mode selection including a selection of a keyboard mode, a position denoting mode and plural other modes for symbol and associated parameter selection and for driving other portions of said function screen with selectable design information associated with a selected mode;

    point and pick means for selecting a point and corresponding mode or associated design information on said function screen;

    means responsive to selection of a point on said function screen portion corresponding to one of said mode selections for changing the display mode of said function screen to produce a display enabling point and pick selection of information corresponding to the mode selected wherein,the selection of the keyboard mode results in the display of a simulated keyboard from which point and pick selection of keyboard character design information may be made, andthe selection of the position mode results in the availability of the function screen to be used to select position design information thereon with said point and pick means that designates corresponding positions on the graphics screen, and whereinthe selection of one or more symbol selection modes by said point and pick means results in the function screen displaying selections of graphic element design information and parameters associated therewith;

    said system further including a means for producing design displays on said graphics screen in response to mode and associated design information selections made through said function screen by operation of said point and pick means.

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