Please see the image in full size. Why is it happening?
var progressBar = new cc.ProgressTimer();
progressBar.setSprite(new cc.Sprite(this.spriteFrameCacheGeneral.getSpriteFrame("progressbar.png")));
progressBar.setType(cc.ProgressTimer.TYPE_RADIAL);
progressBar.setPercentage(100);
//progressBar.midPoint = cc.p(0.5, 0.5);
progressBar.setAnchorPoint(cc.p(0.5, 0.5));
progressBar.x = this.size.width / 2;
progressBar.y = this.size.height / 2;
progressBar.setColor(cc.color(238, 0, 133));
this.addChild(progressBar);