Devices and methods wherein an adapter is used to attach an electromagnetic image guidance component to a medical device such that an electromagnetic image guidance system may be used to track the location of the medical device within the body of a human or animal subject. The method initially senses plural component color data that is derived from the color scan mechanism. A user is provided with an intelligent token, such as a smartcard containing a digital certificate. The information displayed includes at least flight path angle, lateral acceleration, and turn rate. The method for operating an image display apparatus includes receiving a three-dimensional image, calculating an Average Picture Level of the 3D image, and changing of a depth of the 3D image according to the calculated APL.