Display control apparatus, display apparatus, and display control method

1. A display control apparatus, comprising:

a processor configured to:

control display of a plurality of operating lines, wherein each operating line of the plurality of operating lines corresponds to an indicator body of a user;

determine whether or not a length of a shortest line segment connecting a first operating line of the plurality of operating lines and a second operating line of the plurality of operating lines is equal to or less than a threshold value;

recognize an operating position on an object based on the determination that the length of the shortest line segment is equal to or less than the threshold value; and

control an operation on the object in a position corresponding to the recognized operating position.

2. The display control apparatus according to claim 1 , wherein the processor is further configured to control display of the first operating line on an extended line from the indicator body.

3. The display control apparatus according to claim 2 , wherein

a plurality of extended lines extends from a plurality of indicator bodies in a direction in which the plurality of indicator bodies is extended,

the plurality of extended lines includes the extended line, and

the plurality of indicator bodies includes the indicator body.

4. The display control apparatus according to claim 3 , further comprising a display screen configured to present the user with a display region to display the object three-dimensionally.

5. The display control apparatus according to claim 4 , wherein the processor is further configured to control the display screen such that portions of the plurality of extended lines stretching into the display region are displayed as the plurality of operating lines.

6. The display control apparatus according to claim 1 , wherein the processor is further configured to determine a midpoint of the shortest line segment as the operating position.

7. The display control apparatus according to claim 1 , wherein the processor is further configured to determine, as the operating position, a partial region on a plane defined by the first operating line and by the second operating line.

8. The display control apparatus according to claim 1 , wherein

the processor is further configured to present the user with the recognized operating position, and

the presentation is based on at least one of a display mode feature change, an audio notification, or a vibration notification.

9. The display control apparatus according to claim 1 , wherein the processor is further configured to control the operation on the object in a case where the operating position either comes into contact with or enters the object.

10. A display apparatus, comprising:

a display screen configured to display a plurality of operating lines, wherein

each operating line of the plurality of operating lines corresponds to an indicator body of a user,

the plurality of operating lines are displayed for recognition of an operating position on an object,

the recognition of the operating position is based on whether or not a length of a shortest line segment connecting a first operating line of the plurality of operating lines and a second operating line of the plurality of operating lines is equal to or less than a threshold value, and

the operating position corresponds to a position in which the object is operable.

11. The display apparatus according to claim 10 , wherein

the display apparatus is wearable by the user,

the display screen is further configured to:

present the user with a display region to display the object three-dimensionally; and

display the plurality of operating lines superposed on a plurality of indicator bodies, and

the plurality of indicator bodies includes the indicator body.

12. A display control method, comprising:

controlling, by a processor, display of a plurality of operating lines, wherein each operating line of the plurality of operating lines corresponds to an indicator body of a user;

determining, by the processor, whether or not a length of a shortest line segment connecting a first operating line of the plurality of operating lines and a second operating line of the plurality of operating lines is equal to or less than a threshold value;

recognizing, by the processor, an operating position on an object based on the determination that the length of the shortest line segment is equal to or less than the threshold value; and

controlling, by the processor, an operation on the object in a position corresponding to the recognized operating position.

13. A non-transitory computer-readable medium having stored thereon, computer-executable instructions which, when executed by a computer, cause the computer to execute operations, the operations comprising:

controlling display of a plurality of operating lines, wherein each operating line of the plurality of operating lines corresponds to an indicator body of a user;

determining whether or not a length of a shortest line segment connecting a first operating line of the plurality of operating lines and a second operating line of the plurality of operating lines is equal to or less than a threshold value;

recognizing an operating position on an object based on the determination that the length of the shortest line segment is equal to or less than the threshold value; and

controlling an operation on the object in a position corresponding to the recognized operating position.