円の回転

/**
 * Copyright yuugurenote ( http://wonderfl.net/user/yuugurenote )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/cnVI
 */

package {
    import flash.display.Sprite;
    import flash.events.MouseEvent;
    import flash.events.Event;
    import flash.display.Graphics;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.geom.ColorTransform;

    [SWF(width=465,height=465,backgroundColor=0x000000,frameRate=60)]
    public class AS120622_01 extends Sprite {
        public var sw:Number=stage.stageWidth;
        public var sh:Number=stage.stageHeight;
        public var myColor:ColorTransform = new ColorTransform();
        public var viewBmd:BitmapData=new BitmapData(sw,sh,false,0x000000);
        public var viewBmp:Bitmap=new Bitmap(viewBmd);
        public var _myCircle1:myCircle1;
        public var _r:Array=new Array(150,180,100,200);
        public var _s:Array=new Array(0.5,0.7,0.9,0.4);
        public var _c:Array = new Array(0xFF0000,0x00FF00,0x0000FF,0xFFFF00);

        public function AS120622_01() {

            addChild(viewBmp);
            var tmpBmd:BitmapData;
            myColor.redMultiplier=0.99;
            myColor.greenMultiplier=0.99;
            myColor.blueMultiplier=0.99;
            addEventListener(Event.ENTER_FRAME,xDraw);

            for (var i:Number=0; i<4; i++) {
                _myCircle1=new myCircle1(_r[i],_s[i],_c[i],i);
                _myCircle1.x=sw/2;
                _myCircle1.y=sh/2;
                addChild(_myCircle1);
            }
        }
        public function xDraw(e:Event):void {
            viewBmd.draw(stage,null,myColor);
        }
    }
}

import flash.display.Sprite;
import flash.events.Event;
import flash.filters.BlurFilter;
class myCircle1 extends Sprite {
    public var myFil:BlurFilter=new BlurFilter(2,2,1);
    public var _r:Number;
    public var _s:Number;
    public var _n:Number;
    public var _c:Number;
    public function myCircle1(r:Number,s:Number,c:Number,n:Number) {
        _r=r;
        _s=s;
        _c=c;
        _n=n;
        this.graphics.lineStyle(1,_c,1,false,"none");
        this.graphics.drawCircle(0,0,_r);
        //this.filters=[myFil];
        this.addEventListener(Event.ENTER_FRAME,xAct1);

    }
    public function xAct1(e:Event):void {
        if ((_n == 0) || (_n == 1)) {
            this.rotationX+=_s;
        } else {
            this.rotationY+=_s;
        }
    }
}