| 摘要 |
PROBLEM TO BE SOLVED: To provide a display operation device that enables an operation to cause a 3D (three-dimensional) object to be rotated in any direction by use of a touch gesture without overlapping with other operations by use of the touch gesture.SOLUTION: An axis decision part decides a first axis 63, using a thumb position P1 and a middle finger position P2 at two positions out of three positions detected by a touch panel part, and the first axis passes through a center of gravity of a 3D (three-dimensional) object 61 located in a virtual three-dimensional space, and is parallel with a first virtual line L1 passing through the thumb position P1 and the middle finger position P2 in the virtual three-dimensional space. A movement determination part determines whether or not an index finger position P3 at a remaining one position moves. When it is determined that three positions are detected with the 3D object displayed and the index finger position moves, a first rotation processing part performs processing to causing the 3D object to be rotated at a first prescribed angle centering around the first axis. |
