transform | 易学教程

CSS3动效(Transitions、Transforms、Animation)

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理解： transition 过渡连续的、从a到b transform 变换旋转、缩放、偏移 animation 动画一、transition 1.理解　　过渡，用于平滑的改变CSS值，举个例子： change{ 　　width:100px; 　　height:100px; 　　background:yellow; 　　transition:background 10s; } change:hover{ 　　background:red; } 　　意思就是说先在change这个css样式里面“声明”：如果我的background属性发生了变化，那么它的变化过程是连续变化（渐变），这个变化过程持续10s。　　所以，transition 就是用来定义，当一个变化发生时，它变化的连续性和时间，以及连续过程的快慢情况的（先慢后快、先快后慢等）。　　 transition不控制变化的产生，而是只控制变化发生后的过渡效果。 2.使用　　transition属性是下面几个属性的缩写: transition-property指定哪个属性应用过渡，比如 transition-property:background 就是指定 background 属性应用过渡。 transition-duration指定这个过渡的持续时间 transition-delay过渡延迟多长时间开始

Simulate Pivot Rotate Using Transform In SVG

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问题 I have a rectangle in SVG that I need to rotate on a pivot from a specific point. The best way I can see to do this is transform to the xy of the pivot, rotate the degree, and then transform again. The problem is the xy of the second transform. I assume its going to take cos and sin to some extent, just not sure where or why. * | | | would rotate -90degrees to *--- Maybe im looking at this the wrong way, can anyone clearify? 回答1: If you use the SVG transform attribute rather than trying to

OpenGL glMatrixMode(GL_PROJECTION) vs glMatrixMode(GL_MODELVIEW)

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问题 what is the difference between placing glRotatef() after glMatrixMode(GL_PROJECTION); glMatrixMode(GL_PROJECTION); glLoadIdentity(); glRotatef(red, green, blue); and placing glRotatef() after glMatrixMode(GL_MODELVIEW); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glRotatef(red, green, blue); 回答1: From documentation: glMatrixMode() specifies which matrix is the current matrix. GL_MODELVIEW - Applies subsequent matrix operations to the modelview matrix stack. GL_PROJECTION - Applies

Runtime Transform Gizmos丨功能实现

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一、前言： Runtime Transform Gizmos已有介绍很详细的博客。因此本章不再介绍基础功能了。转而实现拓展功能。二、基础配置：参考博客：链接三、拓展功能 1、实现按下某按钮，选中某些物体效果：代码： EditorObjectSelection 脚本添加如下代码：（ untiy按键键值表） [DllImport("user32.dll", EntryPoint = "keybd_event")] public static extern void Keybd_event( byte bvk,//虚拟键值 ESC键对应的是27 byte bScan,//0 int dwFlags,//0为按下，1按住，2释放 int dwExtraInfo//0 ); public void Skode_Press() { _selectedObjects.Clear(); _selectedObjects.Add(GameObject.Find("Cube")); _selectedObjects.Add(GameObject.Find("Cube (1)")); _selectedObjects.Add(GameObject.Find("Cube (2)")); //模拟W键按下、松开。 Keybd_event(87, 0, 0, 0); Keybd_event(87

Applying CSS rules based on input checkbox status

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问题 I'm currently developing a site that uses the :checked variable to apply rules to the CSS. I've got a checkbox input that when triggered, should accomplish two things. The first thing it should do is expand a div from a height of 0 to 200 when checked, and back to 0 when unchecked. I had no problems with triggering that first task. The second thing that should be accomplished upon checking the box, is a transform: rotate(45deg) of a div with a " +" in it that should rotate 45 degrees into an

Equivalent to ddply(…,transform,…) in data.table

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问题 I have the following code using ddply from plyr package: ddply(mtcars,.(cyl),transform,freq=length(cyl)) The data.table version of this is : DT<-data.table(mtcars) DT[,freq:=.N,by=cyl] How can I extend this when I have more than one function like the one below? Now, I want to perform more than one function on ddply and data.table : ddply(mtcars,.(cyl),transform,freq=length(cyl),sum=sum(mpg)) DT[,list(freq=.N,sum=sum(mpg)),by=cyl] But, data.table gives me only three columns cyl,freq, and sum.

Pretty HTML snippet output

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问题 I've a snippet of HTML <div><p>text1</p></div><div><p>text1</p></div> I want to make it pretty like this <div> <p>text1</p> </div> <div> <p>text1</p> </div> What would be most simple way to do it? (I've looked on transform and jsoup) but not sure what would be really smart to use. Thanks! 回答1: jTidy could fit for this task - http://jtidy.sourceforge.net/howto.html public String prettyPrintHTML(String rawHTML) { Tidy tidy = new Tidy(); tidy.setXHTML(true); tidy.setIndentContent(true); tidy

How can I transform xml to html on android?

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问题 I'm relatively new to java and android, in my android application I need to get xml file, transform it and show to user. I know how to parse xml, but I don't want to parse it and generate view after. I'd like to transform it to html and display in WebView. I'm trying to find something on the Internet but can't find anything(( How can I do it? Any ideas or links will be appreciated, thanks 回答1: The usual tool to use for transforming XML to HTML is XSLT. Search SO for XSLT tutorial and you'll

Transform Data in SQL Server

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问题 I received a data from product providers today. AdviserName|IF-Nov16|IF-Dec16|NB-Nov16|NB-Dec16|CN-Nov16|CN-Dec16|TotalPolcy|Provider| -----------|--------|--------|--------|--------|--------|--------|----------|--------| John Smith |$100 |$100 |$50 |$25.50 |-$20 |-$30 |12 |ANZ | Adrian Ken |$200 |$250 |$1000 |$2000 |-$500 |-$700 |30 |AXA | How do i transpose the table above to below? AdviserName|Month|Year|Status|Amount |TotalPolicy|Provider| -----------|-----|----|------|-----------|-------

Animated cube-like (only two faces) effect with CSS3

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问题 I would like to reproduce this jsfiddle I that prepared based on this awesome tutorial (please check the demo). But I don't want the keys functionality, just on hover. http://jsfiddle.net/b5rmW/5/ But that only uses 2 faces (front and back). I tried, like this: #cube { position: relative; margin: 100px auto 0; height: 300px; width: 300px; -webkit-transition: -webkit-transform .5s linear; -webkit-transform-style: preserve-3d; -moz-transition: -moz-transform .5s linear; -moz-transform-style: