html5 canvas print

First, what is canvas?Canvas, a canvas that is used to draw graphics on a Web page.Canvas has several ways to draw paths, rectangles, circles, characters, and add images.Second, create a canvas elementAdd basic attributes: class, width, and heightclass= "MyCanvas" width:100px height:100px>

What is Canvas?The HTML5 canvas element uses JavaScript to draw an image on a Web page.The canvas is a rectangular area where you can control each pixel.Canvas has several ways to draw paths, rectangles, circles, characters, and add images.The Create a Canvas elementThe code

(); Buildlinestyle (); Buildcolor (); Buildnewfunction (); Buildsavefunction (); Buildopenfunction (); Toolbar.installevents ();}1. Create a drawing command button line, rectangle, circle, etc. buildcommandbutton establish a line, rectangle, Circle button Object Timagebutton,timagebutton Detailed introduction You can view the previous chapter HTML5 canvas Online Brush Drawing Tool (ii) obtained. The curren

HTML5 is amazing. The program passed the test in the google browser. Do not run the above Code locally. google's security check will automatically block the reading and writing of non-domain files from the browser ....,. HTML5 Canvas implements Image Grayscale (Step + instance effect) Create an html page and add it between the body tags Gray Filter Add th

Comments: In html5, I think the most important thing is to introduce Canvas so that we can draw various images on the web, while Canvas is pixel-based. Canvas is an html node equivalent to a drawing board. We must operate the drawing using js. In html5, I think the most impo

In the HTML5 overview, we mentioned that html 5 has been crowned with many high hats. The highest and controversial one is the "Flash Killer ". The IT comments are familiar with this word, and the killer is everywhere. Whether it's a killer or not, some new features introduced by HTML 5 are really exciting. One of the most promising elements is the canvas Element. As part of the

varCanvas =document.getElementById (elem);3Canvas.width = 800;4Canvas.height = 500;5 varcontext = Canvas.getcontext (' 2d ');6Context.fillstyle = "#eeefff";7Context.fillrect (0,0,800,500);8window.location = Canvas.todataurl (' image/jpeg '));9}————————————————————————————————————————————Demo5-Simple animationsHTML DOM setinterval () MethodfunctionDraw (Elem) {varCanvas =document.getElementById (Elem); Canvas.width= 800; Canvas.height= 500; varcontext = Canvas.getcontext (' 2d '); Contex

Microsoft's IE9 support HTML5, but because I do not support the XP system, I still can not use it for the time being. Even if you can use, at this stage if the development of HTML5 page, and consider compatibility issues, I am afraid also have to let their own interface support Ie6-8 bar. First, you need to have IE support HTML5 tags. This is simple, any search o

: CompleteSource codeAs follows: "Imagesource" Src = "Hanjiaren.jpg" Alt = "Canvas source" /> "Mycanvas" > Gray Filter The file in the code can replace any image file you want to see HTML5 is amazing. The program passed the test in the Google browser, The last piece of advice: Never try to run the above Code locally. Google's security check will automatically block the reading and

Html5 canvas common api Summary (2) -- drawing API, html5canvas Canvas can draw a lot of wonderful styles and beautiful effects. With a few simple APIs, you can present ever-changing effects on the canvas, as well as make web games, next, we will summarize the graph-related APIs. C