render

问题 I have a question for a html5 game using canvas in javascript. I would like that the canvas showed to the player contains either 1920 of canvas.width, either 1080 of canvas.height in order to not see the padding. That means that I don't want to keep the (optimal) game ratio 16/9 if the player resize his screen with an other ratio, but I want to keep the viewport ratio 16/9 to avoid stretching (using canvas.style.***) Let me take an example of a player with a resizable screen (window

问题 I need override "render json" but I don't need override this for models, in models I know that I can open up ActiveRecord::Base and overriding as_json method. But my problem is when I have something like this class TestController < ApplicationController def index render json: { field: 'is a test' } end end My problem is because I use a gem in which some methods I need to return "render json" and this gem not has centralized a method for this. I think in do fork of the gem and refactor this

问题 I know this technically isn't supported (and as far as I can tell it's undefined behavior) but is it really a fatally horrible thing to sample from a texture which is also being written to? I ask because I need to read from a depth texture which I also need to write to, if I can't do this it means I will have to copy the depth texture and if it isn't that big of a deal I don't see the harm in simply copying it? Thanks for any help! 回答1: Yes, it's fatal and triggers undefined behaviour. Just

问题 I'm doing custom rendering in a Decorator subclass. Our rendering requires creating complex geometries which only neded to be re-created when the actual rendered size changes. As such, I have moved the geometry creation into its own function called UpdateGeometry which creates, then freezes the geometry for use in OnRender . This new function only needs to be called in response to a change in ActualWidth or ActualHeight . Even better, it looks like we should be able to simply override

问题 I'm developing an ASP.NET MVC application that will send the user a confirmation email. For the email itself, I'd like to create a view and then render that view and send it using the .NET mail objects. How can I do this using the MVC framework? 回答1: You basically need to use IView.Render . You can get the view by using ViewEngineCollection.FindView ( ViewEngines.Engines.FindView for the defaults). Render the output to a TextWriter and make sure you call ViewEngine.ReleaseView afterwards.

问题 Currently, I'm displaying image metadata successfully from my database using a datatable with sorting/filtering capabilities. Below my datatable I'm successfully displaying my images using a third party image coverflow (http://www.jacksasylum.eu/ContentFlow/). I'm using the same list to display both at this point. After I filter my data within my datatable I need to dynamically update my image list in my coverflow with the filtered datatable results. What is the best way to do this using

问题 I defined the routes for a particular action and created a link. I created the corresponding views too but did not code define the controller action method. Still the view is rendered on clicking the link. That is the view is rendered without the action actually being present. Any explanations ? 回答1: Yes, the view will be rendered even if no corresponding action is present, it will work as routes are defined for the same. But this is not a good practice! 回答2: For Rails to render a view, you

问题 I am trying to optimize the loading speed of my mobile webpage, and for that effect I am using the website: https://developers.google.com/speed/pagespeed/insights This website evaluates my source and tells me what I can improve. In my website I download a font: <link href="//fonts.googleapis.com/css?family=Open+Sans:400,700" rel="stylesheet"> and aparently this is blocking the rendering of my page. Now, if this was JavaScript I could use the async word in the tag and it would fix the problem,

问题 I have a custom class extending WebView that displays HTML content. When the user clicks a link in the HTML document, I calculate an X value to scroll to, and then use scrollTo(x,y) to show that location via a runnable (see below) post( new Runnable() { @Override public void run() { scrollTo( x, 0 ); MyWebView.this.invalidate(); MyWebView.this.buildDrawingCache(); MyWebView.this.refreshDrawableState(); MyWebView.this.postInvalidate(); } } ); After scrolling, there is a chance that the webview

问题 i want to render another component in the main component so user won't face a white screen for a second! i'm using TabNavigator from react-navigation and when i want to switch between tabs, i face a white screen for a second (seems it need a second to render). i was thinking of rendering the second tab in the first so i can have a better user experience! P.s. : my components are in separate files! Main: export default class AdCalc extends React.Component { render() { return ( <View> <Text>