rendering

问题 Assuming that we have millions of requests per day. Is the HTML processing in Node.js with Jade slower or faster than PHP's render engine? Or doesn't matter because the difference is really small? I'm using Node.js with the Jade template engine, I really like it. But I was always the guy who worried about performance. I started my developer career with PHP, it was fun but now Node seems much much better, so I decided to switch. I use Jade to Render HTML, because node.js alone lacks it(I know

问题 I am using the following IE conditional comment: <!--[if gt IE 7]> Here is some code. <![endif]--> This works great to keep the code from rendering in any IE lower than 8. However, this also keeps the code from rendering in Chrome and Firefox. Any ideas on why this is happening, and how I can get the code to render in browsers other than IE? 回答1: Conditional comments are a Microsoft IE-specific rule, and they are not part of any standard. If you check the structure of a conditional comment: <

问题 I've created a WPF control (inheriting from FrameworkElement) that displays a tiled graphic that can be panned. Each tile is 256x256 pixels at 24bpp. I've overridden OnRender. There, I load any new tiles (as BitmapFrame), then draw all visible tiles using drawingContext.DrawImage. Now, whenever there are more than a handful new tiles per render cycle, the framerate drops from 60fps to zero for about a second. This is not caused by loading the images (which takes in the order of milliseconds),

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed last year . We are developing a GIS based application which simulates the real word objects (i.e. Pipes, Roads, etc) in a virtual reality environment. Currently we use ArcScene from ESRI ArcGIS package for 3D rendering, and in future we intend to replace it with our own 3D environment. Question

问题 I'm not a big fan of asking this kind of questions but well, it's been 3 whole days now trying to solve this bug on my code. I know it's a logic problem and I know how to solve it in my mind, but when it comes to translate my ideas into code I just can't make it work as I want. I'm working on a contract endorsement (a modification of a contract) which compares the data from 2 tables and if any of them has changed then it paints only that information. Sometimes the information that changes

问题 I have an ASP.NET web application and at a certain point I do this: mycontrol.stringparameterforjscript = "document.getElementById('" + myotherparam + "').value = 'Hello'"; The problem is that this thing does not work. As you can see this sets a javascript in some event of some tag. Well when the page is redered the problem is that my parameter look like this: <textarea onfocus="document.getElementById('myvalue').value = 'Hello'"></textarea> I must precise that this textbox I'm trying to set

问题 Suppose I have a 3D model: The model is given in the form of vertices, faces (all triangles) and normal vectors. The model may have holes and/or transparent parts. For an arbitrarily placed light source at infinity, I have to determine: [ required ] which triangles are (partially) shadowed by other triangles Then, for the partially shadowed triangles: [ bonus ] what fraction of the area of the triangle is shadowed [ superbonus ] come up with a new mesh that describe the shape of the shadows

问题 Suppose I have a 3D model: The model is given in the form of vertices, faces (all triangles) and normal vectors. The model may have holes and/or transparent parts. For an arbitrarily placed light source at infinity, I have to determine: [ required ] which triangles are (partially) shadowed by other triangles Then, for the partially shadowed triangles: [ bonus ] what fraction of the area of the triangle is shadowed [ superbonus ] come up with a new mesh that describe the shape of the shadows

问题 I have about 100 elements in like and am trying to create an animation with jquery. <div class="box" id="a1"></div> I need to add special styles to each of the elements based on a function. which of them is rendered faster in browser: adding css property $(this).css({'background-color':'#000'}) or adding class $(this).addClass("style1") Updated Few more things i wish to add: Right now it has 100 elements and am adding them by jquery. To create randomness i need to create about 25 styles - am

问题 I have about 100 elements in like and am trying to create an animation with jquery. <div class="box" id="a1"></div> I need to add special styles to each of the elements based on a function. which of them is rendered faster in browser: adding css property $(this).css({'background-color':'#000'}) or adding class $(this).addClass("style1") Updated Few more things i wish to add: Right now it has 100 elements and am adding them by jquery. To create randomness i need to create about 25 styles - am