transform

Access to column name of dataframe with *apply function

由 北慕城南 提交于 2019-12-23 16:40:13
问题 I need to make tutorial for beginner using the R *apply function (without using reshape or plyr package in a first time) I try to lapply (because i read apply is not good for dataframe) a simple function to this dataframe, and i want to use named column to access data : fDist <- function(x1,x2,y1,y2) { return (0.1*((x1 - x2)^2 + (y1-y2)^2)^0.5) } data <- read.table(textConnection("X1 Y1 X2 Y2 1 3.5 2.1 4.1 2.9 2 3.1 1.2 0.8 4.3 ")) data$dist <- lapply(data,function(df) {fDist(df$X1 , df$X2 ,

CSS Transform Rotate letter alignment

由 微笑、不失礼 提交于 2019-12-23 15:34:39
问题 Im using CSS Transforms to rotate an h2 5deg. For some reason the letters are out of alignment. Take a look at an example here http://dev.bestprintideas.com/bpi/image.png Heres the CSS .note-offer h2 { color: #626262; text-shadow: none; text-transform: none; margin: 15px 0 10px 25px; -moz-transform: rotate(-5deg); -webkit-transform: rotate(-5deg); } HTML <div class="note-offer"> <div class="clip"></div> <h2> <span class="orange">The Essentials</span> <div>Package</div> </h2> <img src="http:/

Difference between transform:translate3d(50%,0,0) and left:50% in css?

由 烈酒焚心 提交于 2019-12-23 15:17:20
问题 How does the transform:translate3d(50%,0,0) differ from left:50% in css? heres the jsfiddle that i made. transform: translate3d(50%,0,0) and left:50%; 回答1: translate3d(50%,0,0) considers the percentage as of the element itself, so it is being translated from the left half of the element size. The left of the div that is positioned absolute in the fiddle is relative to the container div which is positioned relative, so the left:50%; is 50% of this container. 回答2: Left value describes width

How to rotate UIView using transform?

由 风格不统一 提交于 2019-12-23 15:08:27
问题 I have a UIView which I am trying to transform (rotate) using the pitch value you can get from coremotion attitude. I am using transform however I am not sure my code is correct as the UIView is not doing anything. This is my code its being called several times per second. - (void)setLabelValueRoll:(double)roll pitch:(double)pitch yaw:(double)yaw { self.yLabel.text = [NSString stringWithFormat:@"pitch: %f", pitch]; CATransform3D transform; transform = CATransform3DMakeRotation(pitch + M_PI_2,

前端常用的CSS代码

由 て烟熏妆下的殇ゞ 提交于 2019-12-23 13:56:44
（非原创）： demo演示 1、垂直居中对齐 .vc { position : absolute ; top : 50% ; left : 50% ; transform : translate ( -50%, -50% ) ; } .vc { position : absolute ; top : 50% ; left : 50% ; width : 100px ; height : 100px ; margin : -50px 0 -50px ; } ``````css 在这里插入代码片 2、全屏显示 html, body { position : fixed ; width : 100% ; height : 100% ; } div { height : 100% ; } 3、不同a标签链接使用不同样式 // link a [ href ^ = "http://" ] { background: url ( link . gif ) no-repeat center right ; } / / emails a [ href ^ = "mailto:" ] { background: url ( email . png ) no-repeat center right ; } / / pdfs a [ href$ = ".pdf" ] { background: url (

Vertex position relative to normal

由 心已入冬 提交于 2019-12-23 13:35:14
问题 In a surface shader , given the world's up axis (and the others too), a world space position and a normal in world space, how can we rotate the worldspace position into the space of the normal? That is, given a up vector and a non-orthogonal target-up vector, how can we transform the position by rotating its up vector? I need this so I can get the vertex position only affected by the object's rotation matrix, which I don't have access to. Here's a graphical visualization of what I want to do:

CSS Transform scale - image still takes up space

由 Deadly 提交于 2019-12-23 10:54:56
问题 When the following CSS property is added to an image, the image still occupies the same space that it did when it was sized at 100%? Is there a way to make the text fill the space around this image? transform: scale(0.2); height: auto; float: right; 回答1: That's not how transform works as I understand it. It only changes the appearance visually ; the actual dimensions of the original object are maintained. You would have to adjust the width/height of the image rather than use transform. Demo

CSS中的transform与transition

由 穿精又带淫゛_ 提交于 2019-12-23 10:39:17
transform：转换 对元素进行移动、缩放、转动、拉长或拉伸。 方法：translate(): 元素从其当前位置移动，根据给定的 left（x 坐标） 和 top（y 坐标） 位置参数 有两个div，它们的css样式如下： .before { width: 70px; height: 70px; background-color: #8fbc8f; } .after { width: 70px; height: 70px; background-color: #ffe4c4; -webkit-transform: translate(50px, 30px); -moz-transform: translate(50px, 30px); -ms-transform: translate(50px, 30px); -o-transform: translate(50px, 30px); transform: translate(50px, 30px); } 结果如下： rotate() 元素顺时针旋转给定的角度。允许负值，元素将逆时针旋转。 有两个div，它们的css样式如下 .before { width: 70px; height: 70px; background-color: #8fbc8f; } .after { width: 70px; height: 70px;

Where do you like to put MVC view model data transformation logic?

由 梦想与她 提交于 2019-12-23 08:53:48
问题 Here is the scenario, I need to load up a view model object from a several domain objects that are being returned from multiple web service service calls. The code that transforms the domain model objects into the digestible view model object is a bit of fairly complex code. The three places that I have thought about putting it are: Internal methods inside of the controller to load up an instance view model. Static get method or property on the view model class itself that returns a loaded

How to get CSS transform rotation value in degrees with JavaScript

由 ∥☆過路亽．° 提交于 2019-12-23 08:40:07
问题 I'm using the code found at CSS-Tricks to get the current rotation transform (in CSS) with JavaScript. JavaScript function: function getCurrentRotation( elid ) { var el = document.getElementById(elid); var st = window.getComputedStyle(el, null); var tr = st.getPropertyValue("-webkit-transform") || st.getPropertyValue("-moz-transform") || st.getPropertyValue("-ms-transform") || st.getPropertyValue("-o-transform") || st.getPropertyValue("transform") || "fail..."; if( tr !== "none") { console
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