SamsaraJS

  • API Docs for Version: 0.2.0


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    Inputs.TwoFingerInput Class

    Extends Streams.SimpleStream
    Defined in: samsara/inputs/TwoFingerInput.js:20

    Generalizes handling of two-finger touch events. Helper to PinchInput, RotateInput, and ScaleInput. This class is meant to be overridden and not used directly.

    Constructor

    Inputs.TwoFingerInput

    () private

    Item Index

    Methods

    Methods

    calculateAngle

    (
    • posA
    • posB
    )
    Number static

    Calculates the angle between two touches relative to [0,1].

    Parameters:

    • posA Array

      First touch location (x,y)

    • posB Array

      Second touch location (x,y)

    Returns:

    Number:

    calculateCenter

    (
    • posA
    • posB
    )
    Array static

    Calculates the midpoint between two touches.

    Parameters:

    • posA Array

      First touch location (x,y)

    • posB Array

      Second touch location (x,y)

    Returns:

    Array:

    calculateDistance

    (
    • posA
    • posB
    )
    Number static

    Calculates the distance between two touches.

    Parameters:

    • posA Array

      First touch location (x,y)

    • posB Array

      Second touch location (x,y)

    Returns:

    Number:

    filter

    (
    • filterFn
    )

    Inherited from Streams.SimpleStream:

    Filter converts the current stream into a new stream that only emits if the filter condition is satisfied. The function should return a Boolean.

    Parameters:

    • filterFn Function
      Function to filter event payload

    map

    (
    • mapperFn
    )

    Inherited from Streams.SimpleStream:

    Map converts the current stream into a new stream with a modified (mapped) data payload.

    Parameters:

    • mapperFn Function
      Function to map event payload

    pluck

    (
    • key
    )

    Inherited from Streams.SimpleStream:

    Pluck is an opinionated mapper. It projects a Stream onto one of its return values. Useful if a Stream returns an array or an object.

    Parameters:

    split

    (
    • splitterFn
    )

    Inherited from Streams.SimpleStream:

    Split maps one of several streams based on custom logic. The function should return an EventEmitter.

    Parameters: