MotionSpline class
The spline motion is used to animate a point along a spline definied by a set of points.
- Inheritance
-
- Object
- Motion
- MotionInterval
- MotionSpline
Constructors
-
MotionSpline({required PointSetterCallback setter, required List<
Offset> points, required double duration, Curve? curve}) -
Creates a new spline motion 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 motion to complete. Optionally acurve
can be used for easing.
Properties
- curve ↔ Curve?
-
The animation curve used to ease the animation.
getter/setter pairinherited
- duration → double
-
The total time it will take to complete the motion, in seconds.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- isFinished → bool
-
Returns true if the Motion has completed.
no setterinherited
-
points
→ List<
Offset> -
A list of points that define the spline.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- setter → PointSetterCallback
-
The callback used to update a point when the motion is run.
final
- tension ↔ double
-
The tension of the spline, defines the roundness of the curve.
getter/setter pair
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
step(
double dt) → void -
Moves to the next time step in an motion,
dt
is the delta time since the last time step in seconds. Typically this method is called from the MotionController.inherited -
toString(
) → String -
A string representation of this object.
inherited
-
update(
double t) → void -
Sets the motion 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 motion. Every motion will always recieve a callback with the end time point (1.0), unless it is cancelled.override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited