html5 canvas code generator

Improve the Performance of HTML5 Canvas, For details, click I. Use cache technology to implement pre-drawing and reduce repeated Canvs content painting Most of the time we draw and update on the Canvas, there will always be some unchanged content, for this content Cache should be drawn in advance, rather than every refresh. Directly draw the

's canvas. Now, after introducing some basic concepts, I will build the first HTML5 canvas. The first is as follows: A simple example is to draw a rectangle. Let's look at the code below: The label of the canvas defines a canvas

interesting, folding Google Maps and Street View rendering like a real paper map. Because shaders can be used for all HTML content, the elements of CSS shaders rendering include ordinary tables, SVG, even HTML5 video, and so on.CSS is now ready to make some 3D animations, but the addition of a key player to the shader will make the technology more flexible and programmability-enhancing. CSS shaders can be used in conjunction with Adobe Edge to create

Describes how to set and use parameters for progressive padding in HTML5 Canvas, and how to set and enable transparency in Canvas. With incremental filling and transparency support to achieve the image's Mask effect. 1. Progressive filling (Gradient Fill) Canvas supports two progressive filling modes: Line Gradient Fi

IPhone4 mediumHTML5 CanvasOptimizationRetinaThe screen is the content to be introduced in this article.IPhone4,RetinaScreen is widely used in mobile devices. AlthoughRetinaThe screen brings unprecedented clear and smooth effects to the display of the screen, but it brings some little trouble to developers. HowRetinaThere are many articles on designing the software UI on the screen. I don't want to repeat the content here, but wantHTML5 canvasInRetinaThe application on the screen tells me some of

HTML5 applications that draw SVG content to Canvas, svghtml5 SVG and Canvas are two completely different ways of drawing graphics applications on HTML5. Each of them has its own advantages and disadvantages, but they are not difficult to draw, in particular, the SVG content can be directly drawn on the

cxt.arc(this.x, this.y + this.r, this.r, 0, Math.PI * 2, false);5 cxt.fill();6 cxt.closePath();7 this.update(cxt);8 }, The cxt parameter is the context of the canvas. This function is very simple. It is used to draw a circle (snowflake) by calling the value set in init in an arc method. At the end of this method, an update method is called, what does he do

The picture displayed in the Web page or graphics, generally only a few, for static content, most will choose JPG, PNG, gif pictures, these pictures called bitmaps, magnified will appear sawtooth, is not easy to change the graphics, if you want to achieve magnification and more accurate display graphics, SVG and canvas will be a better choice, but using canvas may encounter compatibility issues. General ch

Draw an arc using a path in HTML5 Canvas, html5canvasThis article mainly introduces how to draw an arc using a path in HTML5 Canvas. This article demonstrates how to draw a complete circle, half circle, and arc in HTML5 Canvas. Fo

to the two sides, PSPen tool) Fill -----------> fill path BezierCurveTo and quadraticCurveTo are in PSThe essence of the Pen tool! Wait ...... Well, if you are interested, you can go over the PSPen toolOh, I believe it will be helpful for you to understand the attributes and methods of getContext ('2d ') in the canvas object. The following is the HTML5 clock implementation

In order to make it clear that HTML5 makes the simple process of making a game, we first make a very simple game and take a look at the process.The game is very simple, nothing more than a hero catches the monster to score, then the game starts again, the monster appears in the random location of the map, the hero initialized in the middle of the map. Click [here] (.. /simple_canvas_game-master/index.html "Simple_canvas_game"), we can play this game d

. code. toString () = "1094") {iosalert ("more than the number of Lottery draws per day")} else {var up Oint = 0; upoint = parseInt ($ ("# uPoint" ).html ()-parseInt ($ ("# sPoint" ).html ()); $ ("# uPoint" ).html (upoint); if (data. isWin = 'true') {item = getArrayIndex (turnplate. restaraunts, data. name); rotateFn (item + 1, "congratulations," + turnplate. restaraunts [item]);} else {rotateFn (0, "Congratulations! ");}}})}); The above

;Script>varC=document.getElementById ("MyCanvas");varCTX=C.getcontext ("2d");varimg= NewImage (); IMG.SRC= "http://images.cnblogs.com/cnblogs_com/vajoy/558869/o_avatar.jpg"; Img.onload= function() {Ctx.globalalpha= 0.3; //Set Global Transparencyctx.drawimage (IMG,0,0); Ctx.scale (1.2,1.2); Ctx.drawimage (IMG,0,0); Ctx.scale (1.2,1.2); Ctx.drawimage (IMG,0,0); }Script>Note that we are using CTX here. The Globalalpha property, which represents global transparency, has a value of 0-1, 1 is opaque,