Function radianArc

Computes the angle arc between a start and end angle, given in radians. It properly accounts for the wrap-around values.

// Between 0-90deg in clockwise direction
radianArc(0, Math.PI/2, true); // Yields: 3Pi/2 (270 deg)

// In counter-clockwise direction
radianArc(0, Math.PI/2, false); // Yields: Math.PI/2 (90deg)

See degreeArc to operate in degrees.

Orientation of angles is as follows:

      90deg
      Pi/2
       |
Pi  ---+--- 0
180    |
      3PI/2
      270deg
  • radianArc(start, end, clockwise?): number

  • Parameters

    • start: number

      Start angle, in radians

    • end: number

      End angle, in radians

    • clockwise: boolean = true

      Calculate in clockwise direction (default: true)

    Returns number

    Angle of arc, in radians.

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