JP6206279B2 - Electronic device, display control method and program - Google Patents

Description

  The present invention relates to an electronic device capable of a touch operation on a display screen, a display control method, and a program.

In recent years, portable electronic devices called smartphones have been widely used.
The smartphone includes a touch panel, and can perform various operations by touch operations on the display screen.
For example, in a smartphone, the display screen is reduced by an operation of bringing two fingers in contact with the touch panel (pinch-in operation), or displayed by an operation of moving the two fingers in contact with the touch panel (pinch-out operation). The screen can be enlarged and displayed. That is, in the smartphone, the display screen can be enlarged or reduced by an intuitively understandable operation.
On the other hand, in recent years, a device (so-called smart watch) in which the function of a smartphone is mounted on a wristwatch type electronic device has been developed.
For example, Patent Document 1 describes a technique related to a wristwatch having a wireless communication function.

JP 2006-101505 A

However, in conventional wristwatch-type electronic devices including the technique described in Patent Document 1, the display screen is generally smaller than a smartphone. For this reason, it is difficult to perform a touch operation, which is one feature of a smartphone, in the same manner as a smartphone. For example, in a pinch-in operation or a pinch-out operation, it is necessary to bring two fingers into contact with the display screen. However, in the case of a wristwatch-type electronic device, the size of the display screen is smaller than that of a smartphone. Is not easy to do.
That is, in the prior art, it has been difficult to realize an intuitive and easy-to-understand touch operation on a smaller display screen.

  The present invention has been made in view of such circumstances, and an object of the present invention is to realize an intuitively easy-to-understand touch operation on a smaller display screen.

In order to achieve the above object, an electronic device of one embodiment of the present invention includes:
Display means for displaying an image;
Detecting means for detecting a touched position on the display screen of the display means;
Tangential direction determination means for determining a direction of a tangent at a start point in a curve serving as a locus on the display screen by the touch operation;
First determination means for determining whether an angle formed by a line connecting the start point and a point other than the start point on the locus and the tangent is equal to or larger than an image enlargement / reduction determination angle;
Control means for enlarging or reducing the image displayed on the display means when the first determination means determines that the trajectory is equal to or greater than the image enlargement / reduction determination angle;
It is characterized by providing.

  According to the present invention, it is possible to realize an intuitive and easy-to-understand touch operation on a smaller display screen.

1A and 1B are diagrams illustrating a configuration of a wrist terminal as an embodiment of an electronic apparatus according to the present invention, in which FIG. 1A is an external configuration diagram, and FIG. 1B is a block diagram illustrating a hardware configuration. It is a functional block diagram which shows the functional structure for performing a touch operation control process among the functional structures of a wrist terminal. It is a schematic diagram which shows the relationship between rotation trace operation and rotation or expansion and reduction of a display screen. It is a schematic diagram which shows the state where a display screen is expanded by rotation trace operation. It is a schematic diagram which shows the state by which a display screen is reduced by rotation trace operation. It is a flowchart explaining the flow of the touch operation control process which the wrist terminal 1 performs. It is a schematic diagram which shows operation | movement when rotation trace operation is reversed in the range of the rotation angle beyond an image expansion / contraction determination angle. It is a schematic diagram which shows operation | movement when rotation trace operation is reversed in the range of the rotation angle more than rotation determination angle and less than image expansion / contraction determination angle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Hardware configuration]
FIG. 1 is a diagram illustrating a configuration of a wrist terminal 1 as an embodiment of an electronic apparatus according to the present invention. FIG. 1A is an external configuration diagram, and FIG. 1B is a block diagram illustrating a hardware configuration. It is.
The wrist terminal 1 is an electronic device that is configured as a wristwatch and has a function similar to a smartphone.
As shown in FIG. 1, the wrist terminal 1 includes a control unit 11, a sensor unit 12, an input unit 13, an LCD (Liquid Crystal Display) 14, a clock circuit 15, a ROM (Read Only Memory) 16, A RAM (Read Access Memory) 17, a GPS (Global Positioning System) antenna 18, a GPS module 19, a radio communication antenna 20, a radio communication module 21, and a drive 22 are provided.

The control unit 11 includes an arithmetic processing device such as a CPU (Central Processing Unit), and controls the operation of the entire wrist terminal 1. For example, the control unit 11 executes various processes according to a program recorded in the ROM 16 such as a program for a touch operation control process (described later).
The sensor unit 12 includes various sensors such as a triaxial acceleration sensor, a magnetic sensor, an atmospheric pressure sensor, and an air temperature sensor.

The input unit 13 is configured with various buttons, a capacitance type or resistive film type position input sensor stacked on the display area of the LCD 14, etc., and inputs various types of information according to a user's instruction operation.
The LCD 14 outputs an image according to an instruction from the control unit 11. For example, the LCD 14 displays various images and a user interface screen. In the present embodiment, the position input sensor of the input unit 13 is arranged on the LCD 14 so as to constitute a touch panel.
The clock circuit 15 generates a time signal from a signal generated by a system clock or an oscillator, and outputs the current time.

The ROM 16 stores information such as a control program executed by the control unit 11.
The RAM 17 provides a work area when the control unit 11 executes various processes.
The GPS antenna 18 receives radio waves transmitted from satellites in GPS and converts them into electrical signals, and outputs the converted electrical signals (hereinafter referred to as “GPS signals”) to the GPS module 19.
The GPS module 19 detects the position (latitude, longitude, altitude) of the wrist terminal 1 and the current time indicated by GPS based on the GPS signal input from the GPS antenna 18. Further, the GPS module 19 outputs information indicating the detected position and the current time to the control unit 11.

The radio communication antenna 20 is an antenna capable of receiving radio waves having a frequency corresponding to radio communication used by the radio communication module 21, and is configured by, for example, a loop antenna or a rod antenna. The radio communication antenna 20 transmits the radio communication electric signal input from the radio communication module 21 as an electromagnetic wave, or converts the received electromagnetic wave into an electric signal and outputs the electric signal to the radio communication module 21.
The wireless communication module 21 transmits a signal to another device via the wireless communication antenna 20 in accordance with an instruction from the control unit 11. In addition, the wireless communication module 21 receives a signal transmitted from another device and outputs information indicated by the received signal to the control unit 11.
A removable medium 31 made of a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is appropriately attached to the drive 22. The removable medium 31 can store various data such as image data.

[Functional configuration]
Next, the functional configuration of the wrist terminal 1 will be described.
FIG. 2 is a functional block diagram showing a functional configuration for executing the touch operation control process among the functional configurations of the wrist terminal 1.
The touch operation control process is a series of processes for detecting a touch operation input to the touch panel of the wrist terminal 1 and performing display control such as an enlarged display or a reduced display of the screen according to the detected touch operation. Note that the wrist terminal 1 in this embodiment performs display rotation, enlargement display, or reduction display by touch operation control processing in addition to controlling display according to a general touch operation such as flick or tap. .

  When the touch operation control process is performed, as illustrated in FIG. 2, the movement trajectory detection unit 51, the operation determination unit 52, and the display control unit 53 function in the control unit 11.

  The movement trajectory detection unit 51 determines whether or not the touch operation has been performed. When it is determined that the touch operation has been performed, the touch operation has been terminated from the place (start position) where the touch operation was started on the display screen. The movement locus of the contact position up to the place (end position) is sequentially detected. For example, the movement locus detection unit 51 sequentially detects addresses on the display screen from the place where the touch operation is started to the place where the touch operation is finished.

  The operation determination unit 52 determines whether or not an operation for drawing a rotated trajectory (hereinafter referred to as a “rotation trace operation”) is performed based on the movement trajectory of the touch operation detected by the movement trajectory detection unit 51. Do. When the operation determination unit 52 determines that the rotation trace operation has been performed, the operation determination unit 52 detects the rotation angle from the start position in the rotation trace operation. The “circulated trajectory” in the present embodiment includes various trajectories that surround the center, such as a trajectory that circulates while the radius changes irregularly, a trajectory close to a perfect circle, or a spiral trajectory. Is included.

In the present embodiment, the relationship between the rotation angle in the rotation trace operation and the rotation or enlargement / reduction of the display screen is set in advance. In addition, the relationship between the rotation direction in the rotation trace operation and the rotation direction of the display screen, and the relationship between the rotation direction in the rotation trace operation and the enlargement and reduction of the display screen are set in advance.
FIG. 3 is a schematic diagram showing the relationship between the rotation trace operation and the rotation or enlargement / reduction of the display screen.
In FIG. 3, a straight line indicated as “starting direction” is a tangent at the start point of the curve serving as the locus, and represents the direction of the operation locus immediately after the start of the touch operation. A straight line indicated as “rotation determination angle” represents a rotation angle threshold value for determining that the rotation trace operation is an operation for instructing rotation of the display screen. Further, a straight line indicated as “image enlargement / reduction determination angle” represents a rotation angle threshold for determining that the rotation trace operation is an operation for instructing enlargement or reduction of the display screen. The “rotation determination angle” can be set to, for example, about 180 degrees from the “start direction”, and the “image enlargement / reduction determination angle” can be set to, for example, about 360 degrees from the “start direction”. However, the rotation determination angle and the image enlargement / reduction determination angle can be changed according to the specific configuration (size or shape) of the wrist terminal 1.

  That is, the operation determination unit 52 compares the rotation angle from the start position in the rotation trace operation with the rotation determination angle and the image enlargement / reduction determination angle. When the rotation angle from the start position in the rotation trace operation is greater than or equal to the rotation determination angle and less than the image enlargement / reduction determination angle, the operation determination unit 52 determines that the operation is an operation for instructing rotation of the display screen. At this time, the operation determination unit 52 also determines the rotation direction in the rotation trace operation, and determines that the operation is an instruction to turn the display screen left when the rotation direction of the rotation trace operation is left rotation. When the rotation direction of the rotation trace operation is right rotation, the operation determination unit 52 determines that the operation is an operation for instructing right rotation of the display screen.

  When the rotation angle from the start position in the rotation trace operation is equal to or larger than the image enlargement / reduction determination angle, the operation determination unit 52 determines that the operation is an operation for instructing enlargement or reduction of the display screen. At this time, the operation determination unit 52 also determines the rotation direction in the rotation trace operation, and determines that the operation is an instruction to reduce the display screen when the rotation direction of the rotation trace operation is left rotation. When the rotation direction of the rotation trace operation is right rotation, the operation determination unit 52 determines that the operation is an operation for instructing enlargement of the display screen.

  Furthermore, in the present embodiment, in the convolution trace operation, the size of the rotation angle after determining that the operation is an instruction to rotate, enlarge or reduce the display screen, the amount of rotation of the display screen, or the enlargement ratio of the display screen Alternatively, the reduction rate is associated in advance. That is, after it is determined that the operation is an instruction to rotate or enlarge or reduce the display screen, the degree of rotation of the display screen or enlargement or reduction of the display screen increases as the rotation angle in the rotation trace operation increases. Is set.

FIG. 4 is a schematic diagram illustrating a state in which the display screen is enlarged by the convolution trace operation. In FIG. 4, an area surrounded by a one-dot chain line represents an area that is enlarged and displayed by the convolution trace operation.
As shown in FIG. 4, when the rotation angle of the counterclockwise rotation tracing operation becomes equal to or larger than the image enlargement / reduction determination angle, the display screen is enlarged and displayed with the start position of the rotation tracing operation as the center. At this time, the enlargement ratio of the display screen increases in accordance with the rotation angle of the rotation trace operation that is equal to or larger than the image enlargement / reduction determination angle.
FIG. 5 is a schematic diagram showing a state in which the display screen is reduced by the convolution trace operation. In FIG. 5, the area surrounded by the alternate long and short dash line indicates an area that is reduced and displayed by the convolution trace operation.
As shown in FIG. 5, when the rotation angle of the clockwise rotation trace operation becomes equal to or larger than the image enlargement / reduction determination angle, the display screen is reduced and displayed with the start position of the rotation trace operation as the center. At this time, the reduction ratio of the display screen is increased according to the rotation angle of the rotation trace operation that is equal to or larger than the image enlargement / reduction determination angle.

When it is determined that the touch operation is the rotation trace operation, the display control unit 53 rotates, enlarges, or reduces the display screen according to the rotation direction and the rotation angle of the rotation trace operation around the start position of the touch operation. I do. When the rotation direction in the rotation trace operation is reversed, the display control unit 53 switches the rotation direction of the display screen and the enlargement or reduction of the display screen according to the rotation direction after the rotation.
When the touch operation is linear or when the rotation operation is less than the rotation determination angle, the display control unit 53 performs control to move the display screen in parallel with the touch operation.
In the present embodiment, the display control unit 53 sequentially performs parallel movement, rotation, enlargement / reduction, and the like of the display screen according to the movement trajectory sequentially detected by the movement trajectory detection unit 51, and the user's touch operation. Link screen display control in real time.

[Operation]
Next, the operation will be described.
FIG. 6 is a flowchart for explaining the flow of touch operation control processing executed by the wrist terminal 1.
The touch operation control process is started when the wrist terminal 1 is activated, and is repeatedly executed until the operation of the wrist terminal 1 is completed.

When the touch operation control process is started, in step S1, the movement locus detection unit 51 determines whether or not a touch operation on the display screen has been performed.
If a touch operation is performed on the display screen, YES is determined in step S1, and the process proceeds to step S2.
On the other hand, when the touch operation on the display screen is not performed, it is determined as NO in Step S1, and the process of Step S1 is repeated.

In step S2, the movement trajectory detection unit 51 detects the movement trajectory of the contact position from the start position to the end position of the touch operation on the display screen.
In step S <b> 3, the operation determination unit 52 determines whether or not the turning trace operation has been performed based on the movement locus of the touch operation detected by the movement locus detection unit 51.
If the turning trace operation is not performed, NO is determined in step S3, and the process proceeds to step S4.
On the other hand, when the turning trace operation is performed, YES is determined in step S3, and the process proceeds to step S5.

In step S4, the display control unit 53 executes predetermined processing (such as parallel movement of the display screen) according to the touch operation.
In step S5, the operation determination unit 52 determines whether or not the rotation angle in the rotation trace operation is equal to or greater than the rotation determination angle.
If the rotation angle in the rotation trace operation is equal to or greater than the rotation determination angle, YES is determined in step S5, and the process proceeds to step S6.
On the other hand, when the rotation angle in the rotation trace operation is less than the rotation determination angle, NO is determined in step S5, and the process proceeds to step S4.

In step S6, the operation determination unit 52 determines whether or not the rotation angle in the rotation trace operation is equal to or larger than the image enlargement / reduction determination angle.
If the rotation angle in the rotation trace operation is less than the image enlargement / reduction determination angle, NO is determined in step S6, and the process proceeds to step S7.
On the other hand, when the rotation angle in the rotation trace operation is equal to or larger than the image enlargement / reduction determination angle, YES is determined in step S6, and the process proceeds to step S10.
In step S7, the operation determination unit 52 determines the rotation direction in the rotation trace operation.
If it is determined that the rotation direction in the rotation trace operation is right rotation, the process proceeds to step S8.
On the other hand, when it is determined that the turning direction in the turning trace operation is counterclockwise, the process proceeds to step S9.

In step S8, the display control unit 53 performs control to rotate the display screen to the right according to the rotation angle.
In step S9, the display control unit 53 performs control to rotate the display screen counterclockwise in accordance with the rotation angle.
In step S <b> 10, the operation determination unit 52 determines the rotation direction in the rotation trace operation.
When it is determined that the rotation direction in the rotation trace operation is right rotation, the process proceeds to step S11.
On the other hand, if it is determined that the turning direction in the turning trace operation is counterclockwise, the process proceeds to step S12.

In step S11, the display control unit 53 executes control for enlarging and displaying the display screen in accordance with the rotation angle.
In step S12, the display control unit 53 executes control for reducing and displaying the display screen in accordance with the rotation angle.
After steps S4, S8, S9, S11, and S12, the touch operation control process is repeated.

By such a process, when the rotation trace operation is performed on the display screen, any one of the parallel movement of the display screen, the rotation of the display screen, and the enlargement / reduction display of the screen is performed according to the rotation angle. In addition, when the display screen is rotated, the display screen is rotated left or right according to the rotation direction of the rotation trace operation. Furthermore, when screen enlargement / reduction display is performed, enlargement display or reduction display of the screen is realized according to the rotation direction of the rotation trace operation.
Therefore, it is possible to realize an intuitive and easy-to-understand touch operation on a smaller display screen.

[Application Example 1]
In the above-described embodiment, the case where the turning trace operation for turning in one direction has been described as an example, but the present invention can also be applied when the turning direction is changed.
That is, when the rotation trace operation is reversed within a rotation angle range equal to or larger than the image enlargement / reduction determination angle, the display control unit 53 enlarges or reduces the screen according to the rotation angle and the rotation direction after the reverse rotation. It can be performed.
Similarly, when the rotation trace operation is reversed within a rotation angle range that is greater than the rotation determination angle and less than the image enlargement / reduction determination angle, the display control unit 53 displays the display screen according to the rotation angle and rotation direction after the rotation. The display can be controlled to rotate.

FIG. 7 is a schematic diagram showing an operation in the case where the rotation trace operation is reversed within a rotation angle range equal to or larger than the image enlargement / reduction determination angle.
As shown in FIG. 7, first, when the counterclockwise rotation tracing operation becomes equal to or larger than the rotation angle greater than or equal to the image enlargement / reduction determination angle, the operation determination unit 52 determines that the operation is an instruction to reduce the display screen. . Here, when the convolution trace operation is reversed, the operation determination unit 52 determines that the operation is an operation for instructing the enlargement of the display screen opposite to the reduction of the display screen. Thereafter, the display control unit 53 performs an enlarged display of the screen at an enlargement ratio corresponding to the rotated rotation angle.
As a result, even when the user tries to perform enlargement / reduction display and the direction of the turning trace operation is wrong, the operation can be immediately corrected to the operation intended by the user.
In addition, when the convolution trace operation is opposite to the case shown in FIG. 7 (when reversed from the right rotation convolution trace operation), the opposite operation (operation for instructing reduction from enlargement of the display screen) is similarly performed. It is possible to switch to

FIG. 8 is a schematic diagram showing an operation when the rotation trace operation is reversed within a rotation angle range that is greater than the rotation determination angle and less than the image enlargement / reduction determination angle.
As shown in FIG. 8, first, when the rotation trace operation of the left rotation becomes a rotation angle that is greater than the rotation determination angle and less than the image enlargement / reduction determination angle, the operation determination unit 52 instructs the left rotation of the display screen. It is determined that there is. Here, when the convolution trace operation is reversed, the operation determination unit 52 determines that the operation is an operation instructing the opposite of the left rotation of the display screen, that is, the right rotation of the display screen. Thereafter, the display control unit 53 rotates the display screen to the right at a rotation angle corresponding to the rotated rotation angle.
As a result, even if the user tries to rotate the display screen and the direction of the convolution trace operation is wrong, the operation can be immediately corrected to the operation intended by the user.
In addition, when the convolution trace operation is opposite to the case shown in FIG. 8 (when reversed from the right rotation convolution trace operation), the opposite operation (instructed from the left rotation of the display screen to the right rotation) is similarly performed. Operation).

[Application 2]
In the above embodiment, the display control unit 53 links the user's touch operation and the screen display control in real time, but is not limited thereto. That is, when the end position is determined for a series of convolution trace operations without the user's touch operation and screen display control being linked in real time, the rotation of the display screen corresponding to the end position or the display screen Display control such as enlargement or reduction may be executed.
Thereby, the user can easily operate the display screen displayed statically.

[Application Example 3]
In the above embodiment, the rotation angle of the display screen, the enlargement ratio in the enlarged display, or the reduction ratio in the reduced display is determined according to the rotation angle of the rotation trace operation. On the other hand, the rotation angle of the display screen, the enlargement ratio in the enlarged display, or the reduction ratio in the reduced display can be determined using other elements in the convolution trace operation.
For example, the rotation angle of the display screen, the enlargement ratio in the enlarged display, or the reduction ratio in the reduced display can be changed according to the operation speed (that is, the speed of drawing the trajectory) in the convolution trace operation. In this case, the faster the operation speed in the convolution trace operation, the larger the rotation angle of the display screen, the greater the enlargement ratio, and the smaller the reduction ratio.

Similarly, for example, depending on the operation radius of the convolution trace operation (that is, the radius of the trajectory centered on the start position), the rotation angle of the display screen, the enlargement ratio in the enlargement display, or the reduction ratio in the reduction display can be determined. Can be determined using other factors in. In this case, the larger the operation radius in the convolution trace operation, the larger the rotation angle of the display screen, the greater the enlargement ratio, and the smaller the reduction ratio. In addition, in the rotation trace operation, after stopping the movement in the rotation direction, by performing an operation to change the distance from the start position (that is, the operation radius), the rotation angle of the display screen can be increased or the enlargement ratio can be increased. It is possible to further increase or reduce the reduction rate.
As a result, not only the rotation angle of the rotation trace operation but also the operation speed and operation radius can be used to rotate the display screen, and to perform operations for enlargement or reduction of the display screen. Can be improved.

The wrist terminal 1 configured as described above includes the LCD 14, the movement locus detection unit 51, the operation determination unit 52, and the display control unit 53.
The LCD 14 displays an image.
The movement trajectory detection unit 51 detects a touch position touched on the display screen of the LCD 14.
The operation determination unit 52 determines the direction of the tangent at the start point of the curve that becomes the locus on the display screen by the touch operation. Further, the operation determination unit 52 determines whether or not the angle formed by the line connecting the starting point and a point other than the starting point on the trajectory and the tangent is equal to or larger than the image enlargement / reduction determination angle.
The display control unit 53 enlarges or reduces the image displayed on the LCD 14 when the operation determination unit 52 determines that the locus is equal to or larger than the image enlargement / reduction determination angle.
Thus, when a touch operation is performed on the display screen, the display screen is enlarged or reduced according to the rotation angle from the start direction of the locus.
Therefore, it is possible to realize an intuitive and easy-to-understand touch operation on a smaller display screen.

Further, the operation determination unit 52 is an angle formed by a line and a tangent line connecting the start point and a point other than the start point on the trajectory, and is greater than or equal to a rotation determination angle that is smaller than the image enlargement / reduction determination angle. Determine whether.
As a result, an image enlargement / reduction operation and an image rotation operation can be realized.

The display control unit 53 enlarges or reduces the image displayed on the LCD 14 when the operation determination unit 52 determines that the locus is equal to or larger than the image enlargement / reduction determination angle, and the locus is less than the image enlargement / reduction determination angle. And the image displayed on the LCD 14 is rotated when it is determined that the locus is equal to or greater than the rotation determination angle.
Thus, when a touch operation is performed on the display screen, either the rotation of the display screen or the enlargement or reduction of the display screen is performed according to the rotation angle from the start direction of the locus.
Therefore, it is possible to realize an intuitive and easy-to-understand touch operation on a smaller display screen.

Further, the display control unit 53 enlarges or reduces the image displayed on the LCD 14 around the start point or end point of the trajectory according to the direction of the trajectory drawn on the display screen.
As a result, since it is possible to switch between enlargement and reduction of the image according to the direction of the touch operation on the display screen, it is possible to realize an intuitively understandable touch operation on a smaller display screen.

Further, when the trajectory is drawn more than the image enlargement / reduction determination angle, the display control unit 53 determines the image enlargement ratio according to the angle between the line connecting the start point and the end point of the trajectory and the image enlargement / reduction determination angle. Or control the reduction ratio.
This makes it possible to change the enlargement or reduction ratio of the image according to the angle centered on the start point of the trajectory drawn by the touch operation, thereby realizing an intuitive and easy-to-understand touch operation on a smaller display screen. Is possible.

The display control unit 53 controls the enlargement / reduction ratio of the image or the rotation angle of the screen according to the speed of drawing the locus when the locus is drawn more than the image enlargement / reduction determination angle.
Thereby, the faster the operation speed, the larger the rotation angle of the display screen, the more the enlargement ratio can be increased, and the reduction ratio can be further decreased.

Further, when the trajectory is drawn more than the image enlargement / reduction determination angle, the display control unit 53 controls the enlargement / reduction ratio of the image or the rotation angle of the screen according to the radius of the trajectory.
As a result, not only the angle of the trajectory but also the speed of drawing the trajectory and the radius of the trajectory can be used to perform operations for rotating the display screen and enlarging or reducing the display screen. Can be improved.

In addition, when the traveling direction of the trajectory is reversed after the display control unit 53 determines that the angle is greater than or equal to the image enlargement / reduction determination angle, the display control unit 53 increases or decreases the image according to the reversal of the traveling direction, or the image Switch control from reduction to enlargement.
Therefore, even when the direction of the touch operation is wrong, the user can quickly correct the operation to the intended enlargement or reduction.

Further, when the traveling direction of the trajectory is reversed after it is determined that the trajectory is greater than the rotation determination angle and less than the image enlargement / reduction determination angle, the image is rotated in accordance with the reversal of the traveling direction.
Therefore, even when the direction of the touch operation is wrong, the user can quickly correct the operation in the intended rotation direction.

The trajectory includes a rotated trajectory.
This makes it possible to perform operations such as enlarging or reducing the image by using a trajectory that turns around in a circle (a trajectory that turns a screw), enabling intuitive and easy-to-understand touch operations on a smaller display screen. It becomes possible to do.

  In addition, this invention is not limited to the above-mentioned embodiment, The deformation | transformation in the range which can achieve the objective of this invention, improvement, etc. are included in this invention.

In the above-described embodiment, when enlargement display or reduction display of the screen is performed, the enlargement or reduction is performed around the start position of the convolution trace operation. However, the present invention is not limited to this. That is, enlargement or reduction may be performed around the end position of the convolution trace operation.
Further, in the above-described embodiment, when the rotation direction of the rotation trace operation is the right rotation, the display is enlarged, and when the rotation direction is the left rotation, the display is reduced. However, the rotation direction of the rotation trace operation is the right rotation. In this case, the display may be reduced, and the display may be enlarged if the rotation is counterclockwise.
Moreover, in the wrist terminal 1, you may perform combining the control demonstrated by the said embodiment and application example.

In the above-described embodiment, the wrist terminal is described as an example of the electronic device to which the present invention is applied. However, the present invention is not particularly limited thereto.
For example, the present invention can be applied to general electronic devices having an input function by a touch operation. Specifically, for example, the present invention is applicable to notebook personal computers, tablet terminals, printers, television receivers, video cameras, portable navigation devices, mobile phones, smartphones, portable game machines, and the like. .

The series of processes described above can be executed by hardware or can be executed by software.
In other words, the functional configuration of FIG. 2 is merely an example and is not particularly limited. That is, it is sufficient that the imaging apparatus 1 has a function capable of executing the above-described series of processing as a whole, and what functional blocks are used to realize this function is not particularly limited to the example of FIG.
In addition, one functional block may be constituted by hardware alone, software alone, or a combination thereof.

When a series of processing is executed by software, a program constituting the software is installed on a computer or the like from a network or a recording medium.
The computer may be a computer incorporated in dedicated hardware. The computer may be a computer capable of executing various functions by installing various programs, for example, a general-purpose personal computer.

  The recording medium including such a program is not only constituted by the removable medium 31 of FIG. 1 distributed separately from the apparatus main body in order to provide the program to the user, but also in a state of being incorporated in the apparatus main body in advance. It is comprised with the recording medium etc. which are provided in. The removable medium 31 is composed of, for example, a magnetic disk (including a floppy disk), an optical disk, a magneto-optical disk, or the like. The optical disc is composed of, for example, a CD-ROM (Compact Disk-Read Only Memory), a DVD (Digital Versatile Disc), a Blu-ray (registered trademark) Disc (Blu-ray Disc), and the like. The magneto-optical disk is configured by an MD (Mini-Disk) or the like. Further, the recording medium provided to the user in a state of being preinstalled in the apparatus main body is configured by the ROM 16 of FIG. 1 in which a program is recorded, for example.

  In the present specification, the step of describing the program recorded on the recording medium is not limited to the processing performed in chronological order according to the order, but is not necessarily performed in chronological order, either in parallel or individually. The process to be executed is also included.

  As mentioned above, although several embodiment of this invention was described, these embodiment is only an illustration and does not limit the technical scope of this invention. The present invention can take other various embodiments, and various modifications such as omission and replacement can be made without departing from the gist of the present invention. These embodiments and modifications thereof are included in the scope and gist of the invention described in this specification and the like, and are included in the invention described in the claims and the equivalents thereof.

The invention described in the scope of claims at the beginning of the filing of the present application will be appended.
[Appendix 1]
Display means for displaying an image;
Detecting means for detecting a touched position on the display screen of the display means;
Tangential direction determination means for determining a direction of a tangent at a start point in a curve serving as a locus on the display screen by the touch operation;
First determination means for determining whether an angle formed by a line connecting the start point and a point other than the start point on the locus and the tangent is equal to or larger than an image enlargement / reduction determination angle;
Control means for enlarging or reducing the image displayed on the display means when the first determination means determines that the trajectory is equal to or greater than the image enlargement / reduction determination angle;
An electronic device comprising:
[Appendix 2]
It is determined whether the angle between the line connecting the start point and the point other than the start point on the locus and the tangent is equal to or greater than the rotation determination angle which is smaller than the image enlargement / reduction determination angle. Second determining means for
The electronic apparatus according to appendix 1, further comprising:
[Appendix 3]
The control means includes
When the first determination unit determines that the locus is equal to or larger than the image enlargement / reduction determination angle, the image displayed on the display unit is enlarged or reduced,
When the first determination unit determines that the trajectory is less than the image enlargement / reduction determination angle, and the second determination unit determines that the trajectory is equal to or greater than the rotation determination angle, the display unit displays the trajectory. The electronic device according to appendix 1, wherein the image is rotated.
[Appendix 4]
The control means enlarges or reduces the image displayed on the display means around the start point or end point of the trajectory according to the direction of the trajectory drawn on the display screen. The electronic device according to 1 to 3.
[Appendix 5]
When the trajectory is drawn more than the image enlargement / reduction determination angle, the control means enlarges an image according to an angle between a line connecting a start point and an end point of the trajectory and the image enlargement / reduction determination angle. The electronic device according to any one of appendices 1 to 4, wherein the rate or the reduction rate is controlled.
[Appendix 6]
The control means, when the trajectory is drawn more than the image enlargement / reduction determination angle, controls the enlargement / reduction ratio of the image or the rotation angle of the screen according to the speed of drawing the trajectory. The electronic device according to any one of Supplementary notes 1 to 4.
[Appendix 7]
The control means, when the trajectory is drawn more than the image enlargement / reduction determination angle, controls an image enlargement ratio or reduction ratio or a screen rotation angle according to a radius of the trajectory. The electronic device according to any one of supplementary notes 1 to 4.
[Appendix 8]
When the traveling direction of the trajectory is reversed after it is determined that the image enlargement / reduction determination angle is equal to or greater than the image enlargement / reduction determination angle, the control unit is configured to change the image from enlargement to reduction, or to reduce the image. The electronic device according to any one of appendices 1 to 7, characterized in that the control is switched from to the enlargement.
[Appendix 9]
The control means, when the traveling direction of the trajectory is reversed after the trajectory is determined to be greater than or equal to the rotation determination angle and less than the image enlargement / reduction determination angle, the image is displayed according to the reversal of the traveling direction. The electronic device according to appendix 2 or 3, wherein the electronic device is rotated.
[Appendix 10]
The electronic device according to any one of appendices 1 to 9, wherein the locus includes a rotated locus.
[Appendix 11]
A detection step of detecting a touch position touched on a display screen of a display means for displaying an image;
A tangent direction determination step of determining a direction of a tangent at a start point in a curve serving as a locus on the display screen by the touch operation;
A first determination step of determining whether an angle formed by a line connecting the start point and a point other than the start point on the locus and the tangent is equal to or larger than an image enlargement / reduction determination angle;
A control step of enlarging or reducing the image displayed on the display means when the trajectory is determined to be equal to or greater than the image enlargement / reduction determination angle in the first determination step;
A display control method comprising:
[Appendix 12]
In a computer that controls display means for displaying an image,
A detection function for detecting a touch position touched on the display screen of the display means;
A tangent direction determination function for determining a direction of a tangent at a start point in a curve serving as a locus on the display screen by the touch operation;
A first determination function for determining whether an angle formed by a line connecting the start point and a point other than the start point on the locus and the tangent is equal to or larger than an image enlargement / reduction determination angle;
A control function for enlarging or reducing an image displayed on the display means when the trajectory is determined to be equal to or larger than the image enlargement / reduction determination angle by the first determination function;
A program characterized by realizing.

  DESCRIPTION OF SYMBOLS 1 ... Display apparatus, 11 ... CPU, 12 ... ROM, 13 ... RAM, 14 ... Bus, 15 ... Input / output interface, 16 ... Imaging part, 17 ... Input unit, 18 ... output unit, 19 ... storage unit, 20 ... communication unit, 21 ... drive, 31 ... removable media, 51 ... moving track detection unit, 52 ... Operation determination unit, 53... Display control unit

Claims (12)

Display means for displaying an image;
Detecting means for detecting a touched position on the display screen of the display means;
The tangent at the starting point in the curve as a locus in the display screen by the touch operation, the start point and the line connecting the end point of the trajectory, according to the value of the angle formed, are displayed on the display means whether to enlarge or reduce the image, or the rotation of the image displayed on the display means, and determining control means,
An electronic device comprising: The control means includes
First determination means for determining whether an angle formed by a line connecting the start point and the end point of the locus and the tangent is equal to or larger than an image enlargement / reduction determination angle; and the angle is smaller than the image enlargement / reduction determination angle Second determination means for determining whether or not the rotation determination angle is an angle or more;
The electronic apparatus according to claim 1, further comprising: The control means includes
When the first determination unit determines that the angle is equal to or larger than the image enlargement / reduction determination angle, the image displayed on the display unit is enlarged or reduced,
Wherein said angle by a first determination unit is determined and the image scaling judgment angle less than, in the case where the angle by said second determination means determines that said rotation determining angle or more, is displayed on the display means The electronic apparatus according to claim 2, wherein the image is rotated.   The control means enlarges or reduces an image displayed on the display means around a start point or an end point of the trajectory according to a direction of a trajectory drawn on the display screen. Item 4. The electronic device according to Item 3. Wherein, when said angle is the trajectory so that the image scaling judgment angle or more is drawn, the angle between the start and end points and the line connecting the image scaling judgment angle of the trajectory 5. The electronic apparatus according to claim 2 , wherein an enlargement ratio or a reduction ratio of an image displayed on the display unit is controlled in accordance with the electronic apparatus. Wherein, when said angle is the trajectory so that the image scaling judgment angle or more is drawn, according to the speed of drawing the trajectory, enlargement ratio or reduction ratio of the image, or the image 5. The electronic device according to claim 2 , wherein a rotation angle of the electronic device is controlled. Wherein, when said angle is drawn the trajectory so that the image scaling judgment angle or more, depending on the radius of the trajectory, enlargement ratio or reduction ratio of the image, or the image The electronic apparatus according to claim 2, wherein the rotation angle is controlled. Wherein, after the angle is determined with the image scaling judgment angle or more, if the traveling direction of the locus is reversed, in accordance with of the traveling direction reversal, the reduction from the expansion of the image, or The electronic apparatus according to claim 2 , wherein the control is switched from reduction to enlargement of the image. Said control means, said angle in said rotation judgment angle or more, and after it is determined that the image scaling judgment angle less than, if the traveling direction of the locus is reversed, depending on the reversal of the traveling direction, the The electronic apparatus according to claim 2, wherein the image is rotated.   The electronic device according to any one of claims 1 to 9, wherein the locus includes a rotated locus. A detection step of detecting a touch position touched on a display screen of a display means for displaying an image;
The tangent at the starting point in the curve as a locus in the display screen by the touch operation, the start point and the line connecting the end point of the trajectory, according to the value of the angle formed, are displayed on the display means whether to enlarge or reduce the image, or the rotation of the image displayed on the display means, and determining control step of,
A display control method comprising: In a computer that controls display means for displaying an image,
A detection function for detecting a touch position touched on the display screen of the display means;
The tangent at the starting point in the curve as a locus in the display screen by the touch operation, the start point and the line connecting the end point of the trajectory, according to the value of the angle formed, are displayed on the display means A control function for determining whether to enlarge or reduce the image or to rotate the image displayed on the display means ;
A program characterized by realizing.

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