ActionSpline class
The spline action is used to animate a point along a spline definied by a set of points.
- Inheritance
- Object
- Action
- ActionInterval
- ActionSpline
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, andduration
is the time for the action to complete. Optionally acurve
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