CreateJS第1章 EaselJS基础 (画图)

这章学学EaselJS的基本常用API
首先下载createjs库,在项目文件里新建一个js文件夹放里面
http://code.createjs.com/

各种形状

var sp = new createjs.Shape();

sp.graphics.f("red").dc(100,100,80);//画圆

//sp.graphics.beginFill("red").drawCircle(100,100,80);



sp.graphics.f("red").dr(200,10,300,180);//方块

//sp.graphics.beginFill("red").drawRect(200,10,300,180);



sp.graphics.s("blue").ss(5).mt(0,200).lt(1000,200).es();//线



sp.graphics.f("red").rr(10,250,100,110,15);//圆角矩形



sp.graphics.f("red").de(120,250,100,110,15);//椭圆



sp.graphics.f("red").dp(240, 250, 40, 5, 0.6, -90);//星星



var img=new Image();  

img.src="http://www.airmn.com/blog/wp-content/uploads/2014/08/jinbi.jpg";  

img.onload=function(){  

	//alert("imgLoadOK!!")

    sp.graphics.beginBitmapFill(img);  

    sp.graphics.drawCircle(400,300,100); 

    //sp.shadow = new createjs.Shadow("#B1820C",0,0,20);

    stage.update();    

}  



stage.addChild(sp);

 综合练习:

<!doctype html>

<html lang="zh-cn">

<head>

<meta charset="utf-8">

<title></title>

<script type="text/javascript" src="js/createjs.js" ></script>

</head>

<body>

<canvas id="canvas" width="1000" height="500">你的浏览器太古董了。。。。</canvas>

<script type="text/javascript">

var stage

var hw //画布中间x坐标

var hh //画布中间y坐标

function init(){

    stage = new createjs.Stage("canvas");

    hw = stage.canvas.width/2;

    hh = stage.canvas.height/2;

    begin();

    stage.update();

}   

//开始

function begin(){

    var sp = new createjs.Shape();

    //背景

    sp.graphics.beginFill("rgba(254,241,103,1)").drawCircle(hw,hh,80);

    //渐变

    sp.graphics.beginLinearGradientFill(["rgba(254,241,103,0.5)","rgba(227,144,2,0.5)"],[0,1],hw,hh-40,hw,hh+40).drawCircle(hw,hh,80);//beginLinearGradientFill最后这几个参数是相对画布的左上角

    //外环

    sp.graphics.setStrokeStyle(15).beginStroke("#FFF164").drawCircle(hw,hh,80);

    sp.shadow = new createjs.Shadow("#B1820C",0,0,20);

    //符号

    var tt = new createjs.Text("$","100px Arial","#FFF164");

    tt.x=hw-27;

    tt.y=hh-55;

    tt.shadow = new createjs.Shadow("#B1820C",0,0,10)

    stage.addChild(sp);

    stage.addChild(tt);

}

 

init()

</script>

</body>

</html>

 CreateJS第1章 EaselJS基础 (画图)

其中对Graphics的操作可以简写

Tiny Method Tiny Method
mt moveTo lt lineTo
a/at arc / arcTo bt bezierCurveTo
qt quadraticCurveTo (also curveTo) r rect
cp closePath c clear
f beginFill lf beginLinearGradientFill
rf beginRadialGradientFill bf beginBitmapFill
ef endFill ss setStrokeStyle
s beginStroke ls beginLinearGradientStroke
rs beginRadialGradientStroke bs beginBitmapStroke
es endStroke dr drawRect
rr drawRoundRect rc drawRoundRectComplex
dc drawCircle de drawEllipse
dp drawPolyStar p decodePath
sp.graphics.beginLinearGradientFill(["rgba(254,241,103,0.5)","rgba(227,144,2,0.5)"],[0,1],hw,hh-40,hw,hh+40).drawCircle(hw,hh,80);

等于

sp.graphics.lf(["rgba(254,241,103,0.5)","rgba(227,144,2,0.5)"],[0,1],hw,hh-40,hw,hh+40).dc(hw,hh,80);

 

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