<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>//<![CDATA[
window.onload=function(){
var mainCanvas = document.getElementById('mainCanvas');
var textureCanvas = document.getElementById('textureCanvas');
var mainContext = mainCanvas.getContext('2d');
var textureContext = textureCanvas.getContext('2d');
textureContext.fillStyle = 'grey';
textureContext.fillRect(0, 0, 1, 1);
textureContext.fillStyle = 'lightgrey';
textureContext.fillRect(1, 0, 1, 1);
textureContext.fillStyle = 'grey';
textureContext.fillRect(2, 0, 1, 1);
var pattern = mainContext.createPattern(textureCanvas, 'repeat');
mainContext.fillStyle = pattern;
mainContext.fillRect(0, 0, 198, 99);
}//]]>
</script>
</head>
<body>
<canvas id="mainCanvas" width="200" height="200"/>
<canvas id="textureCanvas" width="3" height="1"></canvas>
</body>
</html>
【pattern】
