Information-processing device, storage medium, information-processing method, and information-processing system

A computer-readable non-transitory storage medium storing a program causing a computer device to execute a process, the process comprising:

• receiving an enlargement/reduction instruction to enlarge or reduce a display region that is at least a portion of a predetermined region;
• when enlarging or reducing the display region in accordance with the enlargement/reduction instruction, computing, based on a relationship between a position of a point of regard of the display region within the predetermined region and a position of a reference point of the predetermined region, a position where the point of regard is to be located within the predetermined region after the enlargement or reduction;
• and
• enlarging or reducing the display region, based on the enlargement/reduction instruction.

An information-processing method comprising:

• receiving an enlargement/reduction instruction to enlarge or reduce a display region that is at least a portion of a predetermined region;
• when enlarging or reducing the display region in accordance with the enlargement/reduction instruction, computing, based on a relationship between a position of a point of regard of the display region within the predetermined region and a position of a reference point of the predetermined region, a position where the point of regard is to be located within the predetermined region after the enlargement or reduction;
• and
• enlarging or reducing the display region, based on the enlargement/reduction instruction.

An information-processing system comprising:

• an enlargement/reduction instruction receiving unit configured to receive an enlargement/reduction instruction to enlarge or reduce a display region that is at least a portion of a predetermined region;
• a first control unit configured to, when enlarging or reducing the display region in accordance with the enlargement/reduction instruction, compute, based on a relationship between a position of a point of regard of the display region within the predetermined region and a position of a reference point of the predetermined region, a position where the point of regard is to be located within the predetermined region after the enlargement or reduction;
• and
• a second control unit configured to enlarge or reduce the display region, based on the enlargement/reduction instruction.