| 摘要 |
An apparatus comprising: an integral display for displaying a graphical user interface having three orthogonal dimensions; an integral first user input device, operable by a user to move within the graphical user interface in a first dimension and a second dimension, orthogonal to the first dimension, when the first user input device is in a first mode, and to move within the graphical user interface in a third dimension, orthogonal to the first dimension and to the second dimension, when the first user input device is in a second mode; and an integral second user input device, operable by a user to change the mode of the first user input device between the first mode and the second mode. |
