Something

protected function findAngle(xval:Number, yval:Number):Number {
			var angle:Number;
			
			if(xval < 0) {
				angle = 180 + Math.atan(xval/yval) / term;
			} else if(xval > 0 && yval >= 0) {
				angle = Math.atan(yval / xval) / term;
			} else if(xval > 0 && yval < 0) {
				angle = 360 + Math.atan(yval/xval) / term;
			} else if(xval == 0 && yval == 0) {
				angle = 0;
			} else if(xval == 0 && yval >= 0) {
				angle = 90;
			} else {
				angle = 270;
			}
			return angle;
		}