flash on 2010-2-7

/**
 * Copyright kazuyuki ( http://wonderfl.net/user/kazuyuki )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/nQ5p
 */

package {
    import flash.display.Sprite;
    public class FlashTest extends Sprite {
        public function FlashTest() {
            var centerX:Number = 100;
            var centerY:Number = 200;
            var r:Number =50;
             
            graphics.lineStyle(2,0x888888);
            graphics.moveTo(centerX+r,centerY);
            
            graphics.curveTo(r+centerX,Math.tan(Math.PI/8)*r+centerY,
            Math.sin(Math.PI/4)*r+centerX,Math.sin(Math.PI/4)*r+centerY);
            
            graphics.curveTo(Math.tan(Math.PI/8)*r+centerX,r+centerY,
            centerX,r+centerY);
            
            graphics.curveTo(-Math.tan(Math.PI/8)*r+centerX,r+centerY,
            -Math.sin(Math.PI/4)*r+centerX,Math.sin(Math.PI/4)*r+centerY);
            
            graphics.curveTo(-r+centerX,Math.tan(Math.PI/8)*r+centerY,
            -r+centerX,centerY);
            
            graphics.curveTo(-r+centerX,Math.tan(Math.PI/8)*-r+centerY,
            -Math.sin(Math.PI/4)*r+centerX,-Math.sin(Math.PI/4)*r+centerY);
            
            graphics.curveTo(-Math.tan(Math.PI/8)*r+centerX,-r+centerY,
            centerX,-r+centerY);
            
            graphics.curveTo(Math.tan(Math.PI/8)*r+centerX,-r+centerY,
            Math.sin(Math.PI/4)*r+centerX,-Math.sin(Math.PI/4)*r+centerY);
            
            graphics.curveTo(r+centerX,-Math.tan(Math.PI/8)*r+centerY,
            r+centerX,centerY);            
        }
    }
}