transition | 易学教程

Understanding C++ compilers from a Java / C# perspective

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问题 I'm a moderately experienced Java / C# programmer, and I've recently started learning C++. The problem is, I'm having trouble understanding how to structure the various header and code files. This seems mostly due to my lack of understanding as to how the compiler links everything together. I've tried reading some textbooks, but my preconceptions are heavily colored by my Java and C# knowledge. For example, I'm having a hard time coming to grips with the fact that methods and the like can be

Understanding C++ compilers from a Java / C# perspective

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How do I make an expand/contract transition between views on iOS?

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问题 I'm trying to make a transition animation in iOS where a view or view controller appears to expand to fill the whole screen, then contract back to its former position when done. I'm not sure what this type of transition is officially called, but you can see an example in the YouTube app for iPad. When you tap one of the search result thumbnails on the grid, it expands from the thumbnail, then contracts back into the thumbnail when you return to the search. I'm interested in two aspects of

smooth transition between pages when redirecting with jquery

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问题 I am trying to get a smooth transition when I redirect users. First by fading out the page then redirecting and and fadeIn. Here is my redirect if ( data.redirect != undefined ) { $("#toppanel").slideUp(1000); $("#content").fadeOut(2000, function() { window.location = data.redirect; }); My next page has a javascript in the header like this: jQuery(function ($) { $("div.container_16").first().hide(); $(".grid_16").first().hide(); $("div.container_16").first().fadeIn(2000); $(".grid_16").first(

transition实现图片轮播

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<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>css3 通过transform属性实现DIV元素的旋转</title> <style> #content{width:800px;margin: 30px auto;position: relative;} input[type="radio"]{display: none;} input[type="radio"]~img{width: 800px;position: absolute;top:0px;left:0px;opacity: 0;height: 500px;transform:scale(1.1);transition:all 2s;} input:checked +label + img{opacity: 1;transform:scale(1.0);} input:checked +label img{border: 8px solid #FFDA34; opacity: 1.0; transition: all 2s;} label {display: inline-block;width: 134px;margin: 5px 8px;} label img{ opacity:0.5; width: 134px; margin-top

CSS3中动画属性transform、transition和animation

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Transform：变形　　在网页设计中， CSS 被习惯性的理解为擅长表现静态样式，动态的元素必须借助于 javascript 才可以实现，而 CSS3 的出现改变了这一思维方式。 CSS3 除了增加革命性的创新功能外，还提供了对动画的支持，可以用来实现旋转、缩放、平移、扭曲和过渡效果等等，这些功能再一次证明了 CSS3 功能的强大和无限潜能。　　CSS3 实现元素变形的基础来源于新增的 transform 属性，该属性可用于实现元素的旋转、缩放、平移、扭曲等效果。目前 webkit 内核支持 -webkit-transform 私有属性， Mozilla Geckos 内核支持 -moz-transform 私有属性， IE 浏览器支持 -ms-transform 私有属性。　　在部分的 test case 当中，每每演示 transform 属性的，看起来好像都是带动画。这使得小部分直觉化思维的人（包括我）认为 transform 属性是动画属性。而恰恰相反， transform 属性是静态属性，一旦写到 style 里面，将会直接显示作用，无任何变化过程。 transform 的主要用途是用来做元素的特殊变形，对于做设计的人来说并不是很陌生，简单的来说就是 css 的图形变形工具。　　关于图形变形的基础条件当中的原点设定，在 css 里面使用的是 transform

How to remove/toggle hover class on an element (that is translated upon click) without having to move the mouse again?

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问题 If you click and don't move your mouse you'll see the button's color remaining as red! What I want accomplish is after you click and don't move the mouse it still removes/toggles .hover class. Example on jsFiddle $(function() { var $Btn = $('.button'); $Btn.hover(function() { $(this).toggleClass("hover"); }); $Btn.on("click", function() { $(this).toggleClass('active') $('.move').toggleClass('angle'); }); }); .move { border: 1px solid #000000; padding: 10px; transition: transform .2s ease; /*

background-size transition on hover causes chrome to “shake” background image

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问题 I am trying to achieve an effect I saw recently, where background image zooms on hover. I pretty much did it with example here: https://jsfiddle.net/qyh6nbwt/ but it seems to be very shaky (you will understand what I mean by hovering over it), I'm on osx running latest chrome version, have not checked it in other browsers yet. Is there a way to make it smoother, so it doesn't "shake" on zoom in? HTML <div id="example"> test </div> CSS #example { background-image: url(http://www

State transition diagram for reader writer problem

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问题 I'm not understanding my professor means when he says the write flag and read flag. Does 0 mean it is triggered? He wants us to draw a state transition diagram but I think I can do that myself if I knew what was going on. +---------+------------+-----------+----------------+ | Counter | Write flag | Read flag | Interpretation | +---------+------------+-----------+----------------+ | 0 | 0 | 0 | Write locked | | 0 | 0 | 1 | Invalid | | 0 | 1 | 0 | Invalid | | 0 | 1 | 1 | Available | | N | 0 |

Queue of transitions in d3.js; one by one

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问题 I've tried to make chained transitions in d3.js. For this I define a set of transitions in an array and (try) make a function to call recursively them using .each("end", function()) , to start a transition when the previous is finish, but I don't have results yet. List of actions animations = [ function(){ console.log(1); return circle.transition().duration(2e3).attr("cy", Math.random()*300); } , function(){ console.log(2); return rect.transition().duration(3e3).attr("fill", "#"+((1<<24)*Math