Activation target deformation using accelerometer or gyroscope information

A system for deforming one or more touch screen activation targets associated with respective one or more representations of items displayed on a display of a touch screen device, the system comprising:

• a memory;
• and
• a processing device communicatively coupled to the memory, wherein the system performs a method comprising:
• displaying one or more representations corresponding to each of said one or more displayed items on a display of a touch screen device;
• providing, for each displayed representation, an activation target defining boundaries within which a touch input is processed as corresponding to selection of the corresponding item;
• automatically receiving information indicating a change in orientation or movement of the touch screen device;
• responsive to the received orientation or movement information, distorting a shape of the activation target of an item of the one or more items with respect to the representation of the item, without changing the displayed representation of the item, the distorting of the shape of the activation target resulting in pulling the shape from a first shape into a second, distorted shape based on the first shape of the activation target, and using at least one transformation matrix with one or more elements derived, at least in part, from the received orientation of movement information of the touch screen device to distort the shape of the activation target from the first shape to the second, distorted shape by applying the at least one transformation matrix to the first shape, thereby facilitating selection of the item via a touch input on the activation target;
• and
• wherein said distorting the shape of the activation target of the item is carried out by using a translate transformation matrix to move a center of the activation target, the translate matrix being used with one or more elements derived from the received orientation or movement information of the touch screen device, and using a scaling matrix transformation to distort the shape of the activation target.

A computer program product for deforming one or more touch screen activation targets associated with respective one or more representations of items displayed on a display of a touch screen device, the computer program product comprising:

• a computer readable storage medium having computer readable program code embodied therewith, the computer readable program code adapted to performing the following when run on a computer:
• displaying one or more representations corresponding to each of said one or more items displayed on a display of a touch screen device;
• providing, for each displayed representation, an activation target defining boundaries within which a touch input is processed as corresponding to selection of the corresponding item;
• automatically receiving information indicating a change in orientation or movement of the touch screen device;
• responsive to the received orientation or movement information, distorting a shape of the activation target of an item of the one or more items with respect to the representation of the item, without changing the displayed representation of the item, the distorting of the shape of the activation target resulting in pulling the shape from a first shape into a second, distorted shape based on the first shape of the activation target, and using at least one transformation matrix with one or more elements derived, at least in part, from the received orientation or movement information of the touch screen device to distort the shape of the activation target from the first shape to the second, distorted shape by applying the at least one transformation matrix to the first shape, thereby facilitating selection of the item via a touch input on the activation target;
• and
• wherein said distorting the shape of the activation target of the item is carried out by using a translate transformation matrix to move a center of the activation target, the translate matrix being used with one or more elements derived from the received orientation or movement information of the touch screen device, and using a scaling matrix transformation to distort the shape of the activation target.