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312 lines
7.5 KiB
Markdown
312 lines
7.5 KiB
Markdown
3 months ago
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[ENGLISH](./README_EN.md)
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<h1 align="center">Transition</h1>
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<p align="center">
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<a href="https://travis-ci.com/jiaming743/transition"><img src="https://img.shields.io/travis/com/jiaming743/transition.svg" alt="Travis CI"></a>
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<a href="https://github.com/jiaming743/transition/blob/master/LICENSE"><img src="https://img.shields.io/github/license/jiaming743/transition.svg" alt="LICENSE" /> </a>
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<a href="https://www.npmjs.com/package/@jiaminghi/transition"><img src="https://img.shields.io/npm/v/@jiaminghi/transition.svg" alt="NPM" /></a>
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</p>
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### Transition是什么?
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- 它是一个基于**贝塞尔曲线**的动效插件。
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- 它提供常用的**缓动曲线**。
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- 支持**自定义**缓动曲线。
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### 动画是如何产生的?
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* 获取一帧动画数据
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* 根据动画数据渲染图像
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* 重复...
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我们可以使用三组数据去描述一段动画（**动画起始状态**、**动画结束状态**、**缓动曲线**），根据这三组数据我们可以计算出动画过程中每一帧动画的状态。这就是***Transition***所提供的功能，根据每一帧动画的状态，我们不断的进行重绘，动画就产生了。
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### npm安装
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```shell
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$ npm install @jiaminghi/transition
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```
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### 使用
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```javascript
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import { transition, injectNewCurve } from '@jiaminghi/transition'
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// do something
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```
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### 快速体验
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```html
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<!--资源位于个人服务器仅供体验和测试，请勿在生产环境使用-->
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<!--调试版-->
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<script src="http://lib.jiaminghi.com/transition/transition.map.js"></script>
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<!--压缩版-->
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<script src="http://lib.jiaminghi.com/transition/transition.min.js"></script>
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<script>
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const { transition, injectNewCurve } = window.transition
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// do something
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</script>
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```
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详细文档及示例请移步[HomePage](http://transition.jiaminghi.com).
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- [注解](#注解)
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- [示例](#示例)
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- [扩展新曲线](#扩展新曲线)
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- [缓动曲线表](#缓动曲线表)
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------
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<h3 align="center">注解</h3>
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```javascript
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/**
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* @description 根据动画起止状态及缓动曲线获取若干帧动画状态数据
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* @param {String|Array} tBC 缓动曲线名称或曲线数据
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* @param {Number|Arrya|Object} startState 动画起始状态
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* @param {Number|Arrya|Object} endState 动画结束状态
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* @param {Number} frameNum 动画帧数
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* @param {Boolean} deep 是否启用递归模式
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* @return {Array} 每一帧的动画数据
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*/
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function transition (tBC, startState = null, endState = null, frameNum = 30, deep = false) { // ...
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}
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```
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<h3 align="center">示例</h3>
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**Transition** 支持三种数据类型以描述动画状态.
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* [Number](#Number)
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* [Array](#Array)
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* [Object](#Annotation)
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* [Recursive](#Recursive)
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#### Number
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```javascript
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import transition from '@jiaminghi/transition'
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const beginState = 0
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const endState = 100
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const animationState = transition('linear', beginState, endState, 10)
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/**
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* animationState = [
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* 0, 11.03429355281208, 22.126200274348417, 33.259259259259245, 44.41700960219478,
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* 55.58299039780521, 66.74074074074073, 77.87379972565157, 88.96570644718793, 100
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* ]
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* /
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```
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#### Array
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```javascript
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import transition from '@jiaminghi/transition'
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const beginState = [10, 20, 30]
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const endState = [100, 200, 300]
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const animationState = transition('linear', beginState, endState, 10)
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/**
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* animationState = [
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* [10, 20, 30],
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* [32.415625, 64.83125, 97.24687499999999],
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* [55, 110, 165],
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* [77.58437500000001, 155.16875000000002, 232.753125],
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* [100, 200, 300]
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* ]
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* /
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```
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#### Object
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```javascript
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import transition from '@jiaminghi/transition'
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const objectBeginState = { x: 10, y: 10, r: 5}
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const objectEndState = { x: 100, y: 10, r: 5}
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const animationState = transition('linear', objectBeginState, objectEndState, 5)
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/**
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* animationState = [
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* {x: 10, y: 10, r: 5},
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* {x: 32.415625, y: 10, r: 5},
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* {x: 55, y: 10, r: 5},
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* {x: 77.58437500000001, y: 10, r: 5},
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* {x: 100, y: 10, r: 5}
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* ]
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* /
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```
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#### Recursive
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启用递归模式以计算`Array`或`Object`中的深层数据.
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```javascript
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import transition from '@jiaminghi/transition'
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const beginState = {
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points: [ [10, 30], [20, 80] ],
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origin: { x: 10, y: 20 },
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radius: 3
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}
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const endState = {
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points: [ [100, 230], [120, 10] ],
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origin: { x: 100, y: 200 },
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radius: 9
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}
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const animationState = transition('linear', beginState, endState, 3, true)
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/**
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* animationState = [
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* {
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* origin: { x: 10, y: 20 },
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* points: [ [10, 30], [20, 80] ],
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* radius: 3
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* },
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* {
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* origin: { x: 55, y: 110 },
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* points: [ [55, 130], [70, 45] ],
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* radius: 6
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* },
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* {
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* origin: { x: 100, y: 200 },
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* points: [ [100, 230], [120, 10] ],
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* radius: 9
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* }
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* ]
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* /
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```
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**Notice**
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* 非数值的属性或元素不参与计算过程.
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* 起始状态与结束状态的数据类型（包括属性及元素的数量）必须保持一致.
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<h3 align="center">扩展新曲线</h3>
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如果你想扩展新的缓动曲线，你可以使用`Transition`提供的`injectNewCurve`方法去扩展。
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```javascript
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import { injectNewCurve } from '@jiaminghi/transition'
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const curveName = 'linear'
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// 可以使用绘制工具获得
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const bezierCurve = [[[0, 1]],[[1, 0]]]
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injectNewCurve(curveName, bezierCurve)
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```
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[缓动曲线绘制工具](http://transition.jiaminghi.com/draw/)
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<h3 align="center">缓动曲线表</h3>
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* [linear](#linear)
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* [easeInSine](#easeInSine)
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* [easeOutSine](#easeOutSine)
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* [easeInOutSine](#easeInOutSine)
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* [easeInQuad](#easeInQuad)
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* [easeOutQuad](#easeOutQuad)
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* [easeInOutQuad](#easeInOutQuad)
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* [easeInCubic](#easeInCubic)
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* [easeOutCubic](#easeOutCubic)
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* [easeInOutCubic](#easeInOutCubic)
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* [easeInQuart](#easeInQuart)
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* [easeOutQuart](#easeOutQuart)
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* [easeInOutQuart](#easeInOutQuart)
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* [easeInQuint](#easeInQuint)
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* [easeOutQuint](#easeOutQuint)
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* [easeInOutQuint](#easeInOutQuint)
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* [easeInBack](#easeInBack)
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* [easeOutBack](#easeOutBack)
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* [easeInOutBack](#easeInOutBack)
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* [easeInElastic](#easeInElastic)
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* [easeOutElastic](#easeOutElastic)
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* [easeInOutElastic](#easeInOutElastic)
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* [easeInBounce](#easeInBounce)
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* [easeOutBounce](#easeOutBounce)
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* [easeInOutBounce](#easeInOutBounce)
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#### linear
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#### easeInSine
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#### easeOutSine
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#### easeInOutSine
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#### easeInQuad
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#### easeOutQuad
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#### easeInOutQuad
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#### easeInCubic
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#### easeOutCubic
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#### easeInOutCubic
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#### easeInQuart
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#### easeOutQuart
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#### easeInOutQuart
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#### easeInQuint
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#### easeOutQuint
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#### easeInOutQuint
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#### easeInBack
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#### easeOutBack
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#### easeInOutBack
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#### easeInElastic
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#### easeOutElastic
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#### easeInOutElastic
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#### easeInBounce
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#### easeOutBounce
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#### easeInOutBounce
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