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蔡玲
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<base href="../../../" />
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<script src="page.js"></script>
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<link type="text/css" rel="stylesheet" href="page.css" />
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</head>
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<body>
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<h1>[name]</h1>
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<p class="desc">
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An AnimationClip is a reusable set of keyframe tracks which represent an animation.<br /><br />
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For an overview of the different elements of the three.js animation system see the
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"Animation System" article in the "Next Steps" section of the manual.
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</p>
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<h2>Constructor</h2>
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<h3>[name]( [param:String name], [param:Number duration], [param:Array tracks] )</h3>
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<p>
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[page:String name] - a name for this clip.<br />
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[page:Number duration] - the duration of this clip (in seconds). If a negative value is passed,
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the duration will be calculated from the passed *tracks* array.<br />
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[page:Array tracks] - an array of [page:KeyframeTrack KeyframeTracks].<br /><br />
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Note: Instead of instantiating an AnimationClip directly with the constructor, you can use one
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of its static methods to create AnimationClips: from JSON ([page:.parse parse]), from morph
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target sequences ([page:.CreateFromMorphTargetSequence CreateFromMorphTargetSequence],
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[page:.CreateClipsFromMorphTargetSequences CreateClipsFromMorphTargetSequences]) or from
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animation hierarchies ([page:.parseAnimation parseAnimation]) - if your model doesn't already
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hold AnimationClips in its geometry's animations array.
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</p>
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<h2>Properties</h2>
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<h3>[property:Number duration]</h3>
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<p>
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The duration of this clip (in seconds). This can be calculated from the [page:.tracks tracks]
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array via [page:.resetDuration resetDuration].
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</p>
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<h3>[property:String name]</h3>
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<p>
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A name for this clip. A certain clip can be searched via [page:.findByName findByName].
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</p>
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<h3>[property:Array tracks]</h3>
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<p>
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An array containing a [page:KeyframeTrack] for each property that are animated by this clip.
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</p>
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<h3>[property:String uuid]</h3>
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<p>
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The [link:http://en.wikipedia.org/wiki/Universally_unique_identifier UUID] of this clip instance.
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It gets automatically assigned and shouldn't be edited.
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</p>
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<h2>Methods</h2>
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<h3>[method:AnimationClip clone]()</h3>
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<p>
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Returns a copy of this clip.
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</p>
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<h3>[method:this optimize]()</h3>
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<p>
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Optimizes each track by removing equivalent sequential keys (which are common in morph target
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sequences).
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</p>
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<h3>[method:this resetDuration]()</h3>
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<p>
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Sets the [page:.duration duration] of the clip to the duration of its longest
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[page:KeyframeTrack].
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</p>
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<h3>[method:Object toJSON]()</h3>
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<p>
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Returns a JSON object representing the serialized animation clip.
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</p>
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<h3>[method:this trim]()</h3>
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<p>
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Trims all tracks to the clip's duration.
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</p>
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<h3>[method:Boolean validate]()</h3>
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<p>
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Performs minimal validation on each track in the clip. Returns true if all tracks are valid.
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</p>
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<h2>Static Methods</h2>
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<h3>[method:Array CreateClipsFromMorphTargetSequences]( [param:String name], [param:Array morphTargetSequence], [param:Number fps], [param:Boolean noLoop] )</h3>
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<p>
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Returns an array of new AnimationClips created from the morph
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target sequences of a geometry, trying to sort morph target names into animation-group-based
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patterns like "Walk_001, Walk_002, Run_001, Run_002 ...".
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</p>
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<h3>[method:AnimationClip CreateFromMorphTargetSequence]( [param:String name], [param:Array morphTargetSequence], [param:Number fps], [param:Boolean noLoop] )</h3>
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<p>
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Returns a new AnimationClip from the passed morph targets array of a geometry, taking a name and the number of frames per second.<br /><br />
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Note: The fps parameter is required, but the animation speed can be overridden in an
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*AnimationAction* via [page:AnimationAction.setDuration animationAction.setDuration].
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</p>
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<h3>[method:AnimationClip findByName]( [param:Object objectOrClipArray], [param:String name] )</h3>
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<p>
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Searches for an AnimationClip by name, taking as its first parameter either an array of
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AnimationClips, or a mesh or geometry that contains an array named "animations".
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</p>
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<h3>[method:AnimationClip parse]( [param:Object json] )</h3>
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<p>
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Parses a JSON representation of a clip and returns an AnimationClip.
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</p>
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<h3>[method:AnimationClip parseAnimation]( [param:Object animation], [param:Array bones] )</h3>
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<p>
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Parses the animation.hierarchy format and returns an AnimationClip.
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</p>
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<h3>[method:Object toJSON]( [param:AnimationClip clip] )</h3>
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<p>
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Takes an AnimationClip and returns a JSON object.
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</p>
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<h2>Source</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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</p>
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</body>
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</html>
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