MotionClip class

A run through a placement's clip, as one block on the timeline: from at for length, the clip's own time advancing at speed from offset — backwards when reverse. It stands on a number track (a placement's animationTime) and lowers to a straight ramp: the value at a moment is where the clip's time has got to. Past the block's end the value holds, like a track past its last key; how a time past the clip's own end reads is the placement's loop row, which wraps it.

Which clip runs is clip — a name in the placement's asset — or, when that is empty, whatever the placement's animation row names. Two blocks on one track may overlap, and over the overlap the earlier fades into the later: the runtime hands the placement both clips, both times and a blend that runs 0 to 1 across the overlap.

Constructors

MotionClip({required Duration at, required Duration length, String clip = '', double speed = 1, Duration offset = Duration.zero, bool reverse = false})

Properties

at ↔ Duration
Where the block starts, within its group.
getter/setter pair
clip ↔ String
The clip's name in the asset, or empty for the placement's own row.
getter/setter pair
end → Duration
no setter
hashCode → int
The hash code for this object.
no setterinherited
id → int
Runtime identity, for the same reason a MotionKey has one: the timeline holds a selected block while a drag re-sorts the list and across an undo. Nothing on disk carries it.
final
length ↔ Duration
How long it runs on the timeline.
getter/setter pair
offset ↔ Duration
Where in the clip the run starts.
getter/setter pair
reverse ↔ bool
Whether the clip's time runs down instead of up.
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
speed ↔ double
Clip seconds per timeline second.
getter/setter pair

Methods

copy() → MotionClip
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
timeAt(Duration t) → double
The clip's own time at timeline moment t, in seconds — held at the block's ends.
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited