[ html createPattern 绘制背景平铺方式 ] canvas绘制图片 createPattern 绘制背景平铺方式 属性实例

 1 <!DOCTYPE html>
 2 <html lang='zh-cn'>
 3 <head>
 4 <title>Insert you title</title>
 5 <meta name='description' content='this is my page'>
 6 <meta name='keywords' content='keyword1,keyword2,keyword3'>
 7 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 8 <link rel='stylesheet' type='text/css' href='./css/index.css' />
 9 <script type='text/javascript' src='./js/jquery-1.12.1.min.js'></script>
10 <style type='text/css'>
11 html,body {
12     margin: 0; padding: 0;
13 }
14 
15 html {
16     height: 100%;
17 }
18 
19 body {
20     background: #000;
21 }
22 
23 #can {
24     display: block; border-radius: 2px; margin: 25px auto; background: #FFF;
25 }
26 </style>
27 <script type='text/javascript'>
28     $( function(){
29         var oCan = $( '#can' ).get( 0 ).getContext( '2d' );
30         var oImg = new Image();
31         oImg.src = './images/index.jpg';
32         oImg.onload = function(){
33             var cp = oCan.createPattern( oImg , 'repeat' );    /* 创建背景平铺方式 */
34             oCan.fillStyle = cp;
35             oCan.fillRect( 0 , 0 , 500 , 450 );
36         };
37     } );
38 </script>
39 </head>
40 <body>
41     <canvas id='can' width='500' height='450'>您的浏览器版本过低,请升级您的浏览器以获取更好的使用体验...</canvas>
42 </body>
43 </html>

 

posted @ 2016-10-05 10:55  窗棂  Views(1144)  Comments(0Edit  收藏  举报