| 摘要 |
One aspect provides a modeless manipulator for interacting with and manipulating virtual objects located in 3-D space, in applications such as CAD. The modeless manipulator provides user interface elements that can be accessed by a user to effect any interaction relevant within the current display of the 3-D object. Examples of such interactions include scaling, rotation and translation in any of the three coordinate directions, scaling in all three coordinate directions, orbital rotations, and translation in screen space. The user interface elements of the manipulator are rendered so to ease usage of the manipulator on small form factor displays and with machines that lack mouse and stylus as mechanisms for user input. These aspects can be embodied in such machines, which can perform processes that are determined according to tangible machine readable media storing machine executable instructions describing such processes. |
