events issue( select&drag object )

I have building project with three.js...canvas where you can drag object and play with the camera view as well...there is a famous example-"Draggable Cubes", well my project is pretty similar. On my project there are 3 main events: mouseup /mousedown/ mousemove... Well everything was ok....but now I'm trying to run this code on iphone,changing my events with touchstart / touchmo

事件问题(选择并拖动对象)

我使用three.js构建项目......画布,您可以拖动对象并使用相机视图进行演示......有一个着名的示例 - “可拖拽多维数据集”,我的项目非常相似。 在我的项目中有3个主要事件:mouseup / mousedown / mousemove ... 那么一切都没问题....但现在我试图在iPhone上运行此代码,使用touchstart / touchmove / touchend更改我的事件... 移动对象功能似乎工作正常,但是当我试图通过单击他来选择对象时,它始终是被选中的对象...而

Simulate scroll event using Javascript

I am trying to Simulate a scroll event using Javascript for Mobile Safari. I am using the following code var evt = document.createEvent("MouseEvents"); evt.initMouseEvent("scroll", true, true, window,0, 0, 0, 0, 0, false, false, false, false, 0, null); The above code is part of a jQuery plugin jQuery.UI.Ipad which basically maps touch events like touchstart,touchmove,touchend to mouse even

使用Javascript模拟滚动事件

我正在尝试使用Javascript for Mobile Safari模拟滚动事件。 我正在使用下面的代码 var evt = document.createEvent("MouseEvents"); evt.initMouseEvent("scroll", true, true, window,0, 0, 0, 0, 0, false, false, false, false, 0, null); 上面的代码是jQuery插件jQuery.UI.Ipad的一部分,它基本上将touchstart,touchmove,touchend等触摸事件映射到mouseover,mousedown等鼠标事件 由于某些原因,模拟滚动事件的

Embedding javascript into an application (like Lua)

I do a lot of web-related work with Javascript (some mundane web app stuff, some bleeding-edge software renderer/WebGL stuff), and I also have game-related projects which I code mostly in C++. I have intended for the C++ bits use Lua to accomplish dynamic scripting functionality, but I am starting to wonder if it may serve me well to somehow embed a Javascript engine into my codebase so as to m

将JavaScript嵌入到应用程序中(如Lua)

我用Javascript做了很多与网络相关的工作(一些平凡的网络应用程序,一些流血的软件渲染器/ WebGL的东西),而且我也有游戏相关的项目,我主要用C ++编写代码。 我曾打算让C ++使用Lua来完成动态脚本功能,但我开始怀疑它是否可以很好地将JavaScript引擎嵌入到我的代码库中,从而最大限度地减少我所做的上下文切换的数量,因为如果时间到了,我发现自己需要将Lua代码移植到JS或将JS代码移植到Lua,这会让我感到畏缩。 V8 Jav

jQuery Tips and Tricks

Syntax Shorthand for the ready-event by roosteronacid Line breaks and chainability by roosteronacid Nesting filters by Nathan Long Cache a collection and execute commands on the same line by roosteronacid Contains selector by roosteronacid Defining properties at element creation by roosteronacid Access jQuery functions as you would an array by roosteronacid The noConflict function

jQuery提示和技巧

句法 由罗斯塔纳西德准备事件的速记 由罗颂酸引起的断行和可链接性 由Nathan Long嵌套过滤器 通过roosteronacid缓存集合并在同一行执行命令 包含由roosteronacid选择 在由roosteronacid创建元素时定义属性 像访问roosteronacid的数组一样访问jQuery函数 noConflict函数 - Oli释放$变量 用nickf在noConflict模式下隔离$变量 Roosteronacid没有冲突模式 数据存储 数据函数 - 通过TenebrousX将数据绑定到

is it possible to modify service worker cache response headers?

I am trying to mark resources that are being stored in the service worker cache. I thought it would be possible to add a custom header to the resource that could indicate this, however, it appears that header modifications are removed once a resource is stored in the service worker cache. Is this the case? I don't see anything in the cache spec about modifying response headers. Here is

是否可以修改服务工作者缓存响应头文件?

我正在试图标记存储在服务工作者缓存中的资源。 我认为可以将自定义标题添加到资源中,这可能表明这一点,但是,一旦资源存储在服务工作者缓存中,就会删除标题修改。 是这样吗? 在缓存规范中,我没有看到任何有关修改响应标头的信息。 这是我尝试过的一个例子: // I successfully cache a resource (confirmed in Dev Tools) caches.open('testCache').then(cache => { cache.add('kitten.jpg'); }) .then(() =&

Camera controls based on object bounding box?

Normal orbit controls from three.js is perfect for round object, but not good for long object (especially when zoom close), I'm looking for a solution to solve that. It's hard to describe in words, please view this webgl example from Google (zoom in maximum to see): https://www.google.com/o3d/shopping/viewer/360?q=ymMBhK8fu3C&o3ds=use_3d This is top view illustration of what I'

基于对象边界框的相机控件?

来自three.js的正常轨道控制对于圆形物体来说是完美的,但对于长物体不太好(特别是当缩放关闭时),我正在寻找解决方案来解决这个问题。 很难用文字来形容,请查看Google提供的这个webgl示例(最大可以查看):https://www.google.com/o3d/shopping/viewer/360?q =ymMBhK8fu3C&o3ds = use_3d 这是我正在寻找的顶视图插图: 我正在考虑基于默认OrbitControls的使用,从相机到边界框连续投射光线并保持恒定距离,但问题

What is the starting point in Angular 2 before calling AppComponent.ts?

I want to to do something at the starting point of angular 2 app but I am unable to get that point. Kindly help me if any one know about this. Thanks in advance. Index.html is the start and it continuous main.ts and then its goes with <my-app> and goes on and on After Index.html, systemjs.config.js is loaded. Which tells which file to run. And in systemjs.config.js , it tells to lo

在调用AppComponent.ts之前,Angular 2的起点是什么?

我想在角度2的应用程序的起点做些事情,但我无法得到这一点。 如果有人知道这件事,请帮助我。 提前致谢。 Index.html是开始,它连续main.ts ,然后它与<my-app>一起继续并继续 在Index.html之后,加载systemjs.config.js 。 它告诉哪个文件运行。 在systemjs.config.js ,它告诉加载main.ts以开始。 当没有文件名和/或没有扩展名时,软件包会告诉系统加载程序如何加载 经过一番研究,看看下面的systemjs.con

Is the use of Objects as keys inefficient in Javascript?

Let's say I define a couple of classes. Then I create object of each class. I want to save the objects in a map keyed by their classes, so that I can retrieve the object based on its class. (I'm using ES6 syntax, however the question may remain the same for legacy Javascript with class replaced by function) // Alternative 1 class Apple { } class Banana { } let fruitInBag = {}; fru

在Javascript中使用对象作为键效率低下吗?

假设我定义了几个类。 然后我创建每个类的对象。 我想将这些对象保存在由它们的类键入的地图中,这样我就可以根据它的类来检索该对象。 (我使用的是ES6语法,但问题可能会保留原来的类与由功能替换的JavaScript) // Alternative 1 class Apple { } class Banana { } let fruitInBag = {}; fruitInBag[Apple] = new Apple(); fruitInBag[Banana] = new Banana(); 或者我也可以用相同的结果写下面的内容 // Alternative

jquery prototypal inheritance

I am using the following boilerplate to try something out: https://github.com/jquery-boilerplate/jquery-patterns/blob/master/patterns/jquery.prototypal-inheritance.plugin-boilerplate.js So if "myObject" would be named "car", how do I extend the whole thing with another class then, something like a car type eg "bmw" (main class "car", subclass "bmw&qu

jquery原型继承

我正在使用下面的样板文件尝试一下:https://github.com/jquery-boilerplate/jquery-patterns/blob/master/patterns/jquery.prototypal-inheritance.plugin-boilerplate.js 因此,如果“myObject”将被命名为“汽车”,那么我怎样才能用另一个类来扩展整个事物,例如汽车类型,例如“bmw”(主类“car”,子类“bmw”) 我不需要将“$ .plugin = function(name,object)”改为“$ .plugin = function(name,object,extend)”,并将其

Is it possible to pass a flag to Gulp to have it run tasks in different ways?

Normally in Gulp tasks look like this: gulp.task('my-task', function() { return gulp.src(options.SCSS_SOURCE) .pipe(sass({style:'nested'})) .pipe(autoprefixer('last 10 version')) .pipe(concat('style.css')) .pipe(gulp.dest(options.SCSS_DEST)); }); Is it possible to pass a command line flag to gulp (that's not a task) and have it run tasks conditionally bas

是否有可能通过一个标志Gulp让它以不同的方式运行任务?

通常在Gulp任务看起来像这样: gulp.task('my-task', function() { return gulp.src(options.SCSS_SOURCE) .pipe(sass({style:'nested'})) .pipe(autoprefixer('last 10 version')) .pipe(concat('style.css')) .pipe(gulp.dest(options.SCSS_DEST)); }); 是否有可能传递一个命令行标志吞咽(这不是一个任务),并有条件的基础上运行任务? 例如 $ gulp my-task -a 1 然后在我的gulpfi