HTML5 canvas 9绘制图片实例详解

绘制图片

Var image=new Image();

image.src=” http://img4.duitang.com/uploads/item/201406/25/20140625182321_4MTau.thumb.700_0.jpeg”;

image.onload=function(){}

Context.drawImage(image,x,y);

Context.drawImage(image,y,w,h);

Context.drawIamge(image,sx,sy,sw,sh,dx,dy,dw,dh);

图片平铺

Var pat= context.createPattern(image,”repeat”);

Context.fillStyle=pat;

Context.fillRect(0,400,300);

图片裁剪

先绘制好路径

Context.clip();

rush:js;"> <Meta charset="UTF-8">

<script type="text/javascript">
var oCanvas = document.getElementById("canvas");
var context = oCanvas.getContext("2d");
context.fillStyle = "#ededed";
context.fillRect(0,500,500);

//绘制图片
var img = new Image(); //创建
img.src = "img/01.jpg"; //图片地址
img.onload = function() { //检测所有图像信息载入页面里
context.drawImage(img,0); // img对象;0,0:img坐标起点
};