| 摘要 |
PROBLEM TO BE SOLVED: To reduce wrong operation unintended by a user in a device capable of multi-touch operation.SOLUTION: An information processing device obtains an angle generated by movement of at least one of two touch points relating to a multi-touch operation and formed by a straight line connecting the positions of the two touch points before the movement and a straight line connecting the positions of the two touch points after the movement. When the obtained angle is equal to or greater than a set angle threshold, the information processing device accepts the movement as an image rotation operation. The information processing device sets the angle threshold on the basis of a distance between the two touch points. |
