AnimationCurve 动画曲线

# AnimationCurve 动画曲线

An animation curve. Lets you add keyframes and evaluate the curve at a given
time.

动画曲线.让你在给定时间插入关键帧和数值的曲线.

A collection of curves form an [AnimationClip](../AnimationClip/AnimationClip.html).

曲线的集合组成动画剪辑（[AnimationClip](../AnimationClip/AnimationClip.html)）

### Variables**变量**

* [keys](AnimationCurve.keys.html)
  All keys defined in the animation curve.
  动画曲线中定义的所有键.
* [this [int
  index]](AnimationCurve.Index_operator.html)
  Retrieves the key at index (Read Only)
  检索索引中的键.(只读)
* [length](AnimationCurve.length.html)
  The number of keys in the curve (Read Only)
  曲线中键的数量(只读)
* [preWrapMode](AnimationCurve.preWrapMode.html)
  The behaviour of the animation before the first
  keyframe
  第一帧关键帧之前动画的行为
* [postWrapMode](AnimationCurve.postWrapMode.html)
  The behaviour of the animation after the last
  keyframe
  最后一帧关键帧之后动画的行为

### Constructors**构造器**

* [AnimationCurve](AnimationCurve.AnimationCurve.html)
  Creates an animation curve from arbitrary number of
  keyframes.
  根据任意数量的关键帧创建一个动画曲线.

### Functions**函数**

* [Evaluate](AnimationCurve.Evaluate.html)
  Evaluate the curve at time.
  曲线在某时刻的值
* [AddKey](AnimationCurve.AddKey.html)
  Add a new key to the curve.
  在曲线中加入一个键
* [MoveKey](AnimationCurve.MoveKey.html)
  Removes the keyframe at index and inserts
  key.
  删除索引处的关键帧并插入键
* [RemoveKey](AnimationCurve.RemoveKey.html)
  Removes a key
  删除一个键
* [SmoothTangents](AnimationCurve.SmoothTangents.html)
  Smooth the in and out tangents of the keyframe at
  index.
  平滑索引处关键帧的切线

### Class Functions**类函数**

* [Linear](AnimationCurve.Linear.html)
  A straight Line starting at timeStart, valueStart and
  ending at timeEnd, valueEnd
  一条直线,开始于 timeStart, valueStart 终止于 timeEnd,
  valueEnd
* [EaseInOut](AnimationCurve.EaseInOut.html)
  An ease-in and out curve starting at timeStart, valueStart
  and ending at timeEnd, valueEnd.
  一个渐入渐出的曲线, 开始于 timeStart, valueStart 终止于
  timeEnd, valueEnd