日期:2014-05-16  浏览次数:20382 次

KinticJs的基本用法
Kintic是html5中canvas的一个框架,效率高,包小,非常实用,下面是一个小例子,各位要是有兴趣, 可以去官网看看
http://www.kineticjs.com/

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="kineticjs.js"></script>
</head>
<body>
<div id="content"></div>
</body>
<script>
(function(){
	var load = function(){
		var stage = new Kinetic.Stage({
	        container: "content",
	        width: 578,
	        height: 200
	    });
		var drawCurves = function(){
			var context = this.getContext();
	        var layer = this.getLayer();
	        var quad = layer.quad;
	        context.beginPath();
	        context.moveTo(quad.start[0], quad.start[1]);
	        context.quadraticCurveTo(quad.control[0], quad.control[1], quad.end[0], quad.end[1]);
	        context.strokeStyle = "red";
	        context.lineWidth = 4;
	        context.stroke();
	        context.fill();
		};
		//创造一个Canvas,可以想象为一个图层
		var layer = new Kinetic.Layer({
	    	drawFunc: drawCurves
	    });
        
		layer.quad = {
          	start: [60, 30],
          	control: [240, 110],
          	end: [80, 160]
        };
		(function(){
			//图层内的一个画画对象
        	var shape = new Kinetic.Shape({
                //points: [layer.quad.start[0], layer.quad.start[1], layer.quad.control[0], layer.quad.control[1], layer.quad.end[0], layer.quad.end[1]],
                fill: "red",
                drawFunc: drawCurves,
                alpha: 0
            });
        	shape.on("mousemove", function() {
                
            });
            layer.add(shape);
        })();
		stage.add(layer);
		
	};
	load();
})();
</script>
</html>