ActionSpline class

The spline action is used to animate a point along a spline definied by a set of points.

Inheritance

Constructors

ActionSpline(PointSetterCallback setter, List<Offset> points, double duration, [ Curve curve ])
Creates a new spline action with a set of points. The setter is a callback for setting the positions, points define the spline, and duration is the time for the action to complete. Optionally a curve can be used for easing.

Properties

points List<Offset>
A list of points that define the spline.
final
setter PointSetterCallback
The callback used to update a point when the action is run.
final
tension double
The tension of the spline, defines the roundness of the curve.
read / write
curve ↔ Curve
The animation curve used to ease the animation. [...]
read / write, inherited
duration double
The total time it will take to complete the action, in seconds.
read-only, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

update(double t) → void
Sets the action to a specific point in time. The t value that is passed in is a normalized value 0.0 to 1.0 of the duration of the action. Every action will always recieve a callback with the end time point (1.0), unless it is cancelled.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
inherited
step(double dt) → void
Moves to the next time step in an action, dt is the delta time since the last time step in seconds. Typically this method is called from the ActionController.
inherited
toString() String
Returns a string representation of this object.
inherited

Operators

operator ==(other) bool
The equality operator. [...]
inherited