#$%^&*AU2018202621A120181108.pdf#####ABSTRACT A method for locating a tool in a 3D space is provided. The method includes determining whether location data, corresponding to a location of the tool, is available. If the location data is available, the method includes providing the location data for presenting the location of the tool. If the location data is not available, the method includes determining an estimated location of the tool based on a velocity of the tool and an acceleration of the tool, generating estimated location data corresponding to the estimated location of the tool and providing the estimated location data for presenting the estimated location as the location of the tool. The method also includes determining whether accelerometer data is available. If accelerometer data is available, the method includes using the accelerometer data to estimate the location of the tool.1/4 00 r 0 (INJ L()n 000 (NJ LL 0
