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Apparatus and method for generating a variable line width

  • US 4,905,015 A
  • Filed: 05/18/1988
  • Issued: 02/27/1990
  • Est. Priority Date: 05/18/1988
  • Status: Expired due to Fees
First Claim
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1. An apparatus for drawing with an ink pen having a radially asymmetric nib, comprising:

  • a. a plotter having;

    i. a table for receiving medium upon which said pen will draw;

    ii. a pen slider translatable with respect to said table parallel a first axis (nominally designated the "X" axis); and

    iii. a pen holder for receiving said pen, mounted on said slider and translatable with respect to said slider parallel a second axis (nominally designated the "Y" axis), orthogonal to said first axis, said pen holder including means for maintaining said pen substantially parallel to and at a known angular orientation with respect to a third axis (nominally designated the "Z" axis) perpendicular said X and Y axes and said pen is rotatable about said Z axis; and

    b. means for selectively varying the angular orientation of said pen nib with respect to said Z axis, thereby controlling said pen to apply ink of selectable and variable widths along a line independent of the shape of the line or its orientation with respect to the X and Y axes.

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