transition | 易学教程

css-2D转换以及过渡

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2D概念转换是CSS3中具有颠覆性的特征之一，可以实现元素的位移、旋转、变形、缩放，甚至支持矩阵方式，配合即将学习的过渡和动画知识，可以取代大量之前只能靠Flash才可以实现的效果。 2D 动画要是使用 transform 属性来实现文字或图像的的各种变形效果，如位移、缩放、旋转、倾斜等。 transform属性变形方法： 1.translate()：位移　　　　　将元素沿着水平方向（X轴）和垂直方向（Y轴）移动 translateX(x)：元素仅在水平方向移动（X轴移动） translateY(y)：元素仅在垂直方向移动（Y轴移动） transklate(x,y)：元素在水平方向和垂直方向同时移动（X轴和Y轴同时移动）案例示例： div:hover{ /*设置两个值，第一个参数表示X方向第二个参数表示Y方向*/ /*transform: translate(100px,100px);*/ /*也可以只传入一个参数，表示X方向*/ /*transform: translate(100px);*/ /*也可以指定具体的方向,如下代码，表示Y方向正值方向上移动100px*/ transform:translateY(100px); } 2.scale()：缩放　　　　　将元素根据中心原点进行缩放。跟translate()方法一样 scaleX(x)：元素仅水平方向缩放

以kaldi中的yesno为例谈谈transition

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在基于GMM-HMM的传统语音识别里，比音素（phone）更小的单位是状态（state）。一般每个音素由三个状态组成，特殊的是静音（SIL）由五个状态组成。这里所说的状态就是指HMM里的隐藏的状态，而每帧数据就是指HMM里的观测值。每个状态可以用一个GMM模型表示（这个GMM模型的参数是通过训练得到的）。在识别时把每帧数据对应的特征值放进每个状态的GMM里算概率，概率最大的那个就是这帧对应的状态。再从状态得到音素（HMM负责），从音素得到词（字典模型负责），从词得到句子（语言模型负责），最终完成识别。可以从一个状态转到另一个状态，即状态之间存在转移（transition）。Transition是kaldi里一个非常重要的概念，相关的有transition-state、transition-index、transition-id等，初一看云里雾里不太好理解，其实它们都是根据topo图（/s5/data/lang/topo）得到的。今天就基于yesno的例子对它们做一个讲解。先看yesno中的topo图（见下图），它有三个音素：SIL、yes、no (yes和no均作为一个音素处理)，id 分别为1、2、3. SIL有5个状态，id为0—4 ，5为结束态。yes/no分别有三个状态，id为0—2 ，3为结束态。 SIL中状态0—3 分别有4条状态转移路径（或者叫转移弧），以状态0为例

CSS: bottom-border-transition - expand from middle

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问题 I want to add a bit of transitions to my website. I already have that when someone is in a input-field (so :focus) the border changes color with a transition. I would like that transition to happen from the center to left and right. So the animation is an expanding border to both sides. Is that possible with CSS? If I have to use Jquery or Javascript it's fine. Thanks in advance, Ian 回答1: You can do the border transition with CSS. Hope this helps. CODEPEN example HTML : body { padding: 50px;

Partial page curl animation

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问题 I have a working transition using UIViewAnimationTransitionCurlUp however, I would like the animation to stop halfway through, much like the Maps application...Any thoughts on how to achieve this? 回答1: The Maps partial curl is a private API. You can find details of how to use it in Erica Sadun's book The iPhone Developer's Cookbook, but you will get rejected from the App Store for using it. 回答2: In iOS 3.2 and later, you can give your UIViewController a UIModalTransitionStyle of

Can I change the Android startActivity() transition animation?

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I am starting an activity and would rather have a alpha fade-in for startActivity() , and a fade-out for the finish() . How can I go about this in the Android SDK? Curtain In the same statement in which you execute finish(), execute your animation there too. Then, in the new activity, run another animation. See this code: fadein.xml <set xmlns:android="http://schemas.android.com/apk/res/android" android:fillAfter="true"> <alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="500"/> //Time in milliseconds </set> In your finish-class private void finishTask() { if("blabbla"

Vue实现动画的几种方式

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1. vue内置组件transition 　　元素出现和消失都呈现动画  <transition name="fade"> <div v-show="show"></div> </transition> .fade-enter-active, .fade-leave-active { transition: opacity .5s } .fade-enter, .fade-leave-active { opacity: 0 } 2. animate.css插件　　参照 https://github.com/daneden/animate.css 　　加入类名时呈现动画 npm install animate.css --save import animate from 'animate.css' <div class="animated bounce delay-2s faster">Example</div> 3. wow.js 　　需引入animate，滚动到元素的位置展现动画 npm install wowjs --save-dev <script> import { WOW } from "wowjs" import 'animate.css' export default { mounted() {

vue-3.1-列表动画

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<!DOCTYPE html> <html lang="en" xmlns:v-bind="http://www.w3.org/1999/xhtml" xmlns:v-on="http://www.w3.org/1999/xhtml"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <script src="../lib/vue.min.js"></script> <link rel="stylesheet" href="../lib/bootstrap.min.css"> <style> li { border: 1px dashed #999; margin: 15px; line-height: 25px; font-size: 12px; } li:hover{ background-color: hotpink; transition: all 0.6s ease; } .v-enter, .v-leave-to{ opacity: 0; transform:

Clean way to programmatically use CSS transitions from JS?

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问题 As the title implies, is there a proper way to set some initial CSS properties (or class) and tell the browser to transition these to another value? For example (fiddle): var el = document.querySelector('div'), st = el.style; st.opacity = 0; st.transition = 'opacity 2s'; st.opacity = 1; This will not animate the opacity of the element in Chrome 29/Firefox 23. This is because (source): [...] you’ll find that if you apply both sets of properties, one immediately after the other, then the

Bug with transform: scale and overflow: hidden in Chrome

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Working with CSS3 property transform: scale , I found interesting issue. I wanted to make a little zoom effect for pictures. But when I used for the parent div overflow: hidden and border-radius , the child div extended the beyond of parent div. Update: Problem isn't solved. If I add transition , is still doesn't work. I tried to solve this issue, but without success. Here is a demo It's a known bug in Webkit-based browsers - see #62363 . You can add a border:1px solid transparent; to your .wrap class to workaround the problem. For the updated requirement, adding a transition to an element

Start Activity with an animation

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I am trying to start an activity with a custom transition animation. The only way I have found out so far to do this (without using onPendingTransition() in the previous activity) is to use a custom theme on the activity and define either activityOpenEnterAnimation, taskOpenEnterAnimation, windowEnterAnimation or windowAnimationStyle to set the animation. But, none of these attributes are working for me. Some experimentation yielded the following results- If I set the windowAnimationStyle attribute to some custom style which defines values for activityOpenEnterAnimation, taskOpenEnterAnimation

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