This section is empty.


This section is empty.


This section is empty.


type Animation

type Animation struct {
	// contains filtered or unexported fields

func (*Animation) Active

func (f *Animation) Active() bool

func (*Animation) Start

func (f *Animation) Start(c unit.Metric, now time.Time, velocity float32) bool

    Start a fling given a starting velocity. Returns whether a fling was started.

    func (*Animation) Tick

    func (f *Animation) Tick(now time.Time) int

      Tick computes and returns a fling distance since the last time Tick was called.

      type Estimate

      type Estimate struct {
      	Velocity float32
      	Distance float32

      type Extrapolation

      type Extrapolation struct {
      	// contains filtered or unexported fields

        Extrapolation computes a 1-dimensional velocity estimate for a set of timestamped points using the least squares fit of a 2nd order polynomial. The same method is used by Android.

        func (*Extrapolation) Estimate

        func (e *Extrapolation) Estimate() Estimate

          Velocity returns an estimate of the implied velocity and distance for the points sampled, or zero if the estimation method failed.

          func (*Extrapolation) Sample

          func (e *Extrapolation) Sample(t time.Duration, val float32)

            Sample adds an absolute sample to the estimation.

            func (*Extrapolation) SampleDelta

            func (e *Extrapolation) SampleDelta(t time.Duration, delta float32)

              SampleDelta adds a relative sample to the estimation.