Class FittsLaw

Permits to compute Fitt's law data based on the usage of two Interacto bindings.

Constructors

constructor

Properties

_startX _startY _target data handler obsSrc providedTarget

Accessors

we

Methods

computeD getAB reinit uninstall

Constructors

constructor

Properties

Private _startX

_startX: undefined | number

Private _startY

_startY: undefined | number

Private _target

_target: undefined | Element

Private Readonly data

data: FittsLawDataImpl[]

Private Readonly handler

handler: ((evt) => void)

Type declaration

    • (evt): void

    • Parameters

      • evt: MouseEvent

      Returns void

Private Readonly obsSrc

obsSrc: Subscription

Private Readonly providedTarget

providedTarget: undefined | Element

Accessors

we

  • get we(): number

  • Computes the effective target width (std dev on distances).

    Returns number

    The effective target width.

Methods

Private computeD

getAB

  • getAB(effectiveTargetW?): [a: number, b: number, r: number]

  • Computes the a and b coefficent of the regression line.

    Parameters

    • effectiveTargetW: boolean = false

      If true, will consider the effective target width. Otherwise will consider the computed distances.

    Returns [a: number, b: number, r: number]

    the regression lien coefficients.

Private reinit

uninstall

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