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Polar controller for defining and generating spiral-like shapes

  • US 6,128,024 A
  • Filed: 12/18/1997
  • Issued: 10/03/2000
  • Est. Priority Date: 12/18/1997
  • Status: Expired due to Term
First Claim
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1. A computer implemented method for generating a graphic shape comprising the following steps:

  • (a) providing opportunity for a user to specify an expression for a start angle;

    (b) providing opportunity for the user to specify an expression for a stop angle;

    (c) providing opportunity for the user to specify an expression for a step angle;

    (d) providing opportunity for the user to specify an expression for a radius length, wherein the radius length is expressed as a function of angle;

    (e) providing opportunity for the user to specify a selected base shape; and

    ,(f) generating code which when executed creates the graphic shape which is displayed in a layout window, the selected base shape serving as a base shape which is modified in a way controlled by the step angle and radius length in order to produce the graphic shape, wherein the selected base shape is modified in one of the following ways;

    expanding the selected base shape along a path determined by the step angle and radius length,making copies of the selected base shape at locations determined by the step angle and radius length.

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