MaterialRectCenterArcTween class
A Tween that interpolates a Rect by moving it along a circular arc from begin's Rect.center to end's Rect.center while interpolating the rectangle's width and height.
The arc that defines that center of the interpolated rectangle as it morphs from begin to end is a MaterialPointArcTween.
See also:
- MaterialRectArcTween, A Tween that interpolates a Rect by having its opposite corners follow circular arcs.
- Tween, for a discussion on how to use interpolation objects.
- MaterialPointArcTween, the analog for Offset interpolation.
- RectTween, which does a linear rectangle interpolation.
- Hero.createRectTween, which can be used to specify the tween that defines a hero's path.
Constructors
- MaterialRectCenterArcTween({Rect? begin, Rect? end})
- Creates a Tween for animating Rects along a circular arc.
Properties
- begin ↔ Rect?
-
The value this variable has at the beginning of the animation.
getter/setter pairinherited-getteroverride-setter
- centerArc → MaterialPointArcTween?
-
If begin and end are non-null, returns a tween that interpolates along
a circular arc between begin's Rect.center and end's Rect.center.
no setter
- end ↔ Rect?
-
The value this variable has at the end of the animation.
getter/setter pairinherited-getteroverride-setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
animate(
Animation< double> parent) → Animation<Rect?> -
Returns a new Animation that is driven by the given animation but that
takes on values determined by this object.
inherited
-
chain(
Animatable< double> parent) → Animatable<Rect?> -
Returns a new Animatable whose value is determined by first evaluating
the given parent and then evaluating this object.
inherited
-
evaluate(
Animation< double> animation) → Rect? -
The current value of this object for the given Animation.
inherited
-
lerp(
double t) → Rect -
Returns the value this variable has at the given animation clock value.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
override
-
transform(
double t) → Rect? -
Returns the interpolated value for the current value of the given animation.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited