canvas立体效果的圆环
分类：实例代码
canvas立体效果的圆环属于前端实例代码，有关更多实例代码大家可以查看。
分享一段代码实例，它利用canvas实现了立体圆环效果。
代码实例如下:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="author" content="http://www.pipipi.net/" />
<title>前端教程网</title>
<style>
canvas {
border:2px dotted #ccc;
}
</style>
</head>
<body>
<canvas id="canvas" width="550" height="450"></canvas>
<script type="text/javascript">
var canvas = document.getElementById('canvas');
var context = canvas.getContext('2d');
function drawTwoArcs() {
context.beginPath();
context.arc(300, 190, 150, 0, Math.PI * 2, false);
context.arc(300, 190, 100, 0, Math.PI * 2, true);
context.fill();
}
function draw() {
context.clearRect(0, 0, context.canvas.width, context.canvas.height);
context.save();
context.shadowColor = "rgba(0,0,0,0.8)";
context.shadowOffsetX = 12;
context.shadowOffsetY = 12;
context.shadowBlur = 15;
drawTwoArcs();
context.restore();
}
context.fillStyle = "rgba(100,140,230,0.5)";
draw();
</script>
</body>
</html>
canvas立体效果的圆环，这样的场景在实际项目中还是用的比较多的，关于canvas立体效果的圆环就介绍到这了。