Communication terminal, image communication system, display control method, and non-transitory computer-readable medium

A display control method performed by a communication terminal for displaying a predetermined-area image, which is an image of a part of a whole image, the method comprising:

• receiving first predetermined-area information indicating a first predetermined area, the first predetermined-area information being transmitted from another communication terminal displaying a first predetermined-area image, which is an image of the first predetermined-area in the whole image;
• calculating a direction of the first predetermined area with respect to a second predeteimined area in the whole image, based on the first predetermined-area information received and second predetermined-area information indicating the second predetermined area, the second predetermined area being an area of a second predetermined-area image being displayed by the communication terminal;
• controlling a display to display the second predetermined-area image including display direction information indicating the calculated direction;
• accepting designation of the display direction information;
• and
• controlling the display to display the first predetermined-area image based on the first predetermined-area information, which is a source of calculation of the display direction information for which the designation is accepted.

A non-transitory computer-readable medium storing a computer-executable program that causes a communication terminal for displaying a predetermined-area image, which is an image of a part of a whole image, to perform a method comprising:

• receiving first predetermined-area information indicating a first predetermined area, the first predetermined-area information being transmitted from another communication terminal displaying a first predetermined-area image, which is an image of the first predetermined-area in the whole image;
• calculating a direction of the first predetermined area with respect to a second predetermined area in the whole image, based on the first predetermined-area information received and second predetermined-area information indicating the second predetermined area, the second predetermined area being an area of a second predetermined-area image being displayed by the communication terminal;
• controlling a display to display the second predetermined-area image including display direction information indicating the calculated direction;
• accepting designation of the display direction information;
• and
• controlling the display to display the first predetermined-area image based on the first predetermined-area information, which is a source of calculation of the display direction information for which the designation is accepted.