Input apparatus, display apparatus having an input function, input method, and method of controlling a display apparatus having an input function

A display apparatus having an input function, comprising:

• an input apparatus having an input surface touched by an object body at input time, the input apparatus comprising;
• when a contact area of the object body on the input surface increases, an increase-direction detection section generating increase-direction information corresponding to the increase direction of the contact area;
• when the contact area of the object body on the input surface is moved, a movement-direction detection section generating movement-direction information corresponding to the movement direction of the contact area;
• an image display apparatus displaying an image in an image display area;
• a control section controlling the image display apparatus on the basis of the increase-direction information and the movement-direction information to rotate the image currently displayed in the image display area;
• and
• wherein the control section sets an extending direction of a rotational axis at the time of rotating the image on the basis of the increase-direction information, and if determined that the movement direction intersects the increase direction on the basis of the movement-direction information, the control section rotates the image about the rotational axis in a direction corresponding to the movement direction.