JP2010182029A - Device and method for displaying image, and computer program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a user to perform control desired by a user about an output image without paying any careful attention to the direction of an input operation when performing an input operation. <P>SOLUTION: The continuous input operations Sw01 of a user are received, and the display of an output part is controlled according to an input operation Sw01. In this case, when an angle less than a prescribed threshold angle Θth is made by a predetermined original reference direction U0, directions U1-U3 making 90 degrees or 180 degrees with respect to the original reference direction 0 and an input direction D01 as a direction going from a start Pf1 to end point Pf2 of the input operation with respect to any of the plurality of reference axial directions U0-U3, the same control Am1 when an input operation Sw02 is performed along the specific reference direction (for example U3) as the reference axial direction making the angle which is less than Θth with respect to the input direction is performed about the display of the output part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a technique for displaying an image by changing a display range.

  Conventionally, when an image is displayed on the touch panel, when the user touches a point on the touch panel with a finger or a stylus pen and quickly moves the finger while touching the touch panel, the user moves the finger or stylus pen from the touch panel. There is a technique for changing the image on the touch panel so that the image is sent along the direction in which the user moves the finger even after the release.

JP-A-6-332373

  When using such a technique, the display range is moved from a state where a partial area of the image is displayed, and an image of an area different from the area that has been displayed is displayed on the touch panel. In some cases, it is desired to move the display range accurately in the horizontal direction or to move the display range accurately in the vertical direction.

  However, it is difficult to move the finger or stylus pen that is in contact with the touch panel strictly in the horizontal direction or in the vertical direction. Therefore, the longer the image is sent, the greater the possibility that a range different from the display range desired by the user will be displayed. Such a problem is widely present in a technique for controlling an image to be output in accordance with the direction of an input operation performed by a user on a device.

  The present invention has been made to solve the above-described problems, and when a user performs an input operation, the user can perform desired control on the output image without paying close attention to the direction of the input operation. The purpose is to be able to.

  SUMMARY An advantage of some aspects of the invention is to deal with at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

[Application Example 1]
An image display device that displays an image corresponding to information input by a touch panel,
An input unit that receives input information by an input operation by an operation of moving a contact portion that touches the touch panel;
A control unit capable of controlling the display of the output unit according to the input operation,
The control unit is one of a plurality of reference axis directions including an original reference direction that becomes a reference when specifying a predetermined direction and a direction that forms 90 degrees or 180 degrees with respect to the original reference direction. On the other hand, when the angle of the input direction specified by the input operation from the start point to the end point is less than the threshold angle Θth (Θth <45), An image display apparatus characterized in that the direction is specified on the assumption that the input operation is performed in a specific reference axis direction.

  With such an aspect, when the user performs the input operation, the control desired by the user can be performed on the output image without paying close attention to the direction of the input operation.

In addition, in the application example 1, it is also preferable to adopt the following configuration.
When the input operation is performed on the displayed first partial image, the control unit displays a second partial image having a direction that is 180 degrees with the direction set by the input direction.

  Furthermore, in the above aspect, the image is preferably an image representing a map.

[Application Example 2]
An image display device,
An input unit capable of receiving an instruction by a user's continuous input operation;
An output unit capable of displaying an image;
A control unit capable of controlling the display of the output unit according to an instruction by the input operation,
The control unit is configured to start the input operation with respect to any of a plurality of reference axis directions including a predetermined original reference direction and a direction that is 90 degrees or 180 degrees with respect to the original reference direction. When the input direction, which is a direction from the direction to the end point, forms an angle less than a predetermined threshold angle Θth (for example, Θth <45 degrees), the reference axis direction forms an angle less than Θth with respect to the input direction. The same control as when the input operation is performed along a certain reference axis direction is performed on the display of the output unit,
The threshold angle Θth is an image display device that is ½ or less of an angle formed by a pair of reference axis directions forming the smallest angle.

  According to such an aspect, when performing an input operation on the input unit, the user has performed an input operation strictly along one of the reference axis directions without paying close attention to the direction of the input operation. As in the case, it is possible to control the display desired by itself.

  The specific reference axis direction can be determined as follows. That is, the angle formed by the input direction by the input operation and each reference axis direction can be specified, and the reference axis direction having the minimum angle can be set as the specific reference axis direction.

  Note that display control performed in response to an instruction by an input operation can take various forms. For example, the display can be controlled to change so that the image moves according to the operation amount and direction of the input operation. At that time, the display may be modified so that the image is moved by the same amount as the operation amount of the input operation in the reference axis direction, and Cr times (Cr>) the operation amount of the input operation in the reference axis direction. It is also possible to control the display so that the image moves only by 1).

  Further, when the original reference direction is the positive direction of the X axis, the reference axis direction can include at least a part of the negative direction of the X axis, the positive direction of the Y axis, and the negative direction of the Y axis. Further, when the input unit can receive an instruction by a three-dimensional input operation and the output unit can display a three-dimensional image, the reference axis direction further includes the positive direction of the Z axis and the negative direction of the Z axis. Can be included.

[Application Example 3]
In the image display device according to Application Example 2,
The output unit is a display;
The input unit is a touch panel provided on the display,
When the input operation is performed in a state where the first partial image, which is a part of the entire image, is displayed on the output unit, the control unit is the other part of the entire image. 2 partial images are displayed on the output unit,
The original reference direction is an upward direction of display in a state where the first partial image is displayed on the output unit,
The second partial image is a partial image located in a direction that forms 180 degrees with the specific reference axis direction with respect to the first partial image in the entire image, and the second partial image includes the first partial image. On the other hand, it is preferable that the image display device is located at a position separated by a distance determined according to the positional relationship between the start point and the end point of the input operation.

  With such an aspect, the user can accurately move, for example, the images displayed on the output unit of the entire image along the directions orthogonal to each other vertically, right and left, without performing a strict input operation. it can.

  Note that the relationship between the entire image and the partial image can be, for example, a partial relationship with the entire document. Moreover, it can also be set as the relationship between the map of a wide range, and the map of the one part range included in the map.

[Application Example 4]
In the image display device according to the application example 3, the entire image may be an image representing a map.

  When displaying a map image, the user may want to move the map image in a predetermined orthogonal direction, such as up, down, left and right (for example, the direction of travel is up) or east, west, south, and north of the map. Many. For this reason, in the aspect as described above, it is particularly preferable to adopt the configuration as in application example 3.

[Application Example 5]
In the image display device of application example 3 or application example 4,
In the entire partial image, the second partial image is Cr times the distance between the start point and the end point of the input operation in at least the specific reference axis direction with respect to the first partial image (Cr It can be an aspect that is> 1) apart.

  In such an aspect, the display range of the partial image in the output unit moves by a distance that exceeds the operation amount of the input operation at least in the specific reference axis direction. For this reason, the display range is accurately moved along a predetermined direction such as up, down, left, and right, so that the user can more easily understand the positional relationship between the partial images before and after the input operation.

  Note that “a position that is at least about a specific reference axis direction” is a position that is in a position that is in the specific reference axis direction and a direction that is 180 degrees with respect to the specific reference axis direction. Including both cases. In the present specification, the same applies to a distance along a certain direction.

[Application Example 6]
In the image display device of any one of application examples 2 to 5,
The plurality of reference axis directions further include a direction that forms 45 degrees with respect to the original reference direction and a direction that forms 90 degrees or 180 degrees with respect to the original reference direction,
The threshold angle Θth is preferably an angle of less than 22.5 degrees.

  According to such an aspect, the user can display an image to be displayed on the output unit of the entire image without performing a strict input operation, for example, the vertical and horizontal directions and the upper right 45 degrees, the lower right 45 degrees, and the upper left 45. It can be accurately moved along the reference axis directions that are 45 degrees to each other, such as 45 degrees and 45 degrees on the lower left.

  The present invention can be realized in various forms, for example, an image display method and an image display device, a map display method and a map display device, and a computer program for realizing the functions of these methods or devices. Further, it can be realized in the form of a recording medium or the like on which the computer program is recorded.

The figure which shows the hardware constitutions of the map display system which is 1st Example of this invention. The flowchart which shows the process of the mobile telephone 200 at the time of displaying a map in a present Example. The figure which shows an example of the content of the determination in step S50. The figure which shows the positional relationship of the example Ad0 of the map range displayed by step S10, and the example Ad1, Ad2 of the map range displayed by step S70.

A. Example:
A1. overall structure:
FIG. 1 is a diagram showing a hardware configuration of a map display system according to the first embodiment of the present invention. The map display system of the first embodiment includes a mobile phone 200 and a server 170.

  The mobile phone 200 includes a display panel 202, an audio output unit 203, a vibration mechanism 204, a communication unit 205, a command input unit 206, a clock unit 209, a main control unit 210, and a call control unit 220. is doing.

  The display panel 202 includes a liquid crystal display 202a that can display a two-dimensional image. In addition, the display panel 202 includes a touch panel 202b that can receive an instruction from a user by touching a part of the panel according to a displayed image. Specifically, the display panel 202 is configured by superposing a transparent touch panel 202b on a liquid crystal display 202a. For example, the user can perform an operation for controlling the display of the image by pressing the surface of the display panel 202 with a finger or moving the finger continuously in contact with the surface of the display panel 202.

  In this specification, “image” is a concept that includes characters, symbols, and the like in addition to narrowly defined images. For example, “image” includes a document expressed in each main format such as PDF. That is, in this specification, “image” includes any object that can be expressed in two dimensions. In the present embodiment, the technical contents will be described using a map as an example of an image. However, for example, this technique can also be applied to a case where only a part of the document data is displayed on the screen and another part is displayed according to the moving operation.

  Note that as the display panel 202, various types of touch panels such as a pressure-sensitive type and an electrostatic type can be employed. For example, “resistance film method (analog resistance film method)”, “capacitance method”, “ultrasonic surface acoustic wave method” using surface acoustic waves that propagate as physical vibrations on the surface of glass, etc., glass surface `` Acoustic pulse recognition method '' that detects the touch position using acoustic waves propagating through the screen, `` Vibration detection method (DST) '' that detects physical vibration due to touch on the touch surface and finds the position, around the surface of the display panel "Infrared light shielding method" that detects light-shielded parts by providing light-emitting and light-receiving parts on the vertical and horizontal walls of the panel, and receives the electromagnetic energy on the panel side by touching with a special pen that can generate a magnetic field. "Electromagnetic induction method" to detect the position of the finger, and images such as a finger touching with a plurality of image sensors located mainly in the corner near the screen, and the touch position and touch from the image analysis results The “image recognition method” that determines whether the object has changed, the “electrostatic sensor method” that uses the characteristic that the capacitance of the electrode increases when an object whose capacitance changes near the sensor electrode, and the LCD itself is directly connected to the image sensor. Various methods such as “LCD with built-in optical sensor” can be adopted.

  The command input unit 206 includes cursor keys 206b as hardware. In addition to the display panel 202 including the touch panel 202b, the user moves the cursor by pressing the peripheral part of the cursor key 206b, and also performs the ON operation by pressing the center part of the cursor key 206b. Can be entered.

  The voice output unit 203 is a device that includes a speaker, and is a device that can output a message to a user such as route guidance, a melody, and the like by voice. The vibration mechanism 204 is a device that can prompt the user's attention with a predetermined pattern of vibration.

  The communication unit 205 can communicate with the server 170 and transmit / receive information via the Internet INT as a communication network. In addition to the Internet, the communication network includes a LAN, a WAN, a public line, and the like. The call control unit 220 is a circuit that performs an incoming call for a call, a voice / electrical signal conversion, and the like. The clock unit 209 outputs current time information indicating the current time in response to a request from the main control unit 210.

  The main control unit 210 is a control unit for controlling each unit of the mobile phone 200. The main control unit 210 includes a CPU 211, a RAM 212, and a ROM 213 that are used for these controls. For example, the main control unit 210 can control each unit of the mobile phone 200 by executing the application software 230 on the CPU to perform various processes, and can transmit information from the mobile phone 200 to the server 170. Thus, the server 170 can perform various processes.

  The server 170 includes a communication unit 172, a control unit 174, and a storage unit 176. The storage unit 176 stores a map database 178. The server 170 can communicate with the mobile phone 200 via the communication unit 172 and the Internet INT. Based on the data request received from the mobile phone 200, the control unit 174 of the server 170 refers to the map image data in the map database 178 and extracts map image data representing a map of the area requested by the mobile phone 200. Then, the cut map image data is transmitted to the mobile phone 200 via the communication unit 172.

  The liquid crystal display 202a of the display panel 202 in this embodiment corresponds to an “output unit” that can display an image. The touch panel 202b of the display panel 202 corresponds to an “input unit” that can receive an instruction by a user's continuous input operation. The main control unit 210 corresponds to a “control unit” that can control the display of the output unit in accordance with an instruction by an input operation.

A2. Map display:
FIG. 2 is a flowchart showing processing of the mobile phone 200 (more specifically, the main control unit 210) when displaying a map in the present embodiment. In step S <b> 10, the main control unit 210 of the mobile phone 200 displays a map of a range on the display panel 202. The map displayed in step S10 can be part of a wider map that cannot be displayed entirely on the display panel 202 (eg, a map of the entire Japan). Here, the map image shown in step S10 is a part of the wide area map Ma.

  In step S20 of FIG. 2, the main control unit 210 of the mobile phone 200 performs an operation (referred to as “movement operation” in this specification) in which the user touches the touch panel and continuously moves the contact portion while maintaining the contact state. It is determined whether or not. If a move operation has been performed, the process proceeds to step S30. If the moving operation has not been performed, the process returns to step S10, and the same map is continuously displayed on the display panel 202. Although not described in the present embodiment, when an instruction other than a movement operation is input through the touch panel 202b or the cursor key 206b, the main control unit 210 of the mobile phone 200 performs processing according to those instructions. Done.

  FIG. 1 shows an example of a moving operation performed by the user. Here, it is assumed that the user first touches the position Pf1 of the display panel 202 (touch panel 202b) with a finger. Then, it is assumed that the user continuously moves the finger while keeping the state in contact with the display panel 202 (see arrow Sw01), and releases the finger from the display panel 202 at the position Pf2. It is assumed that the time required in the meantime was 0.2 seconds. In this specification, a moving operation performed in a relatively short time is referred to as a “sweep operation”. On the other hand, the moving operation performed in a longer time than the sweep operation is referred to as “drag operation” in this specification.

  In step S30 of FIG. 2, the main control unit 210 determines whether or not the time ts during which the moving operation has been performed is smaller than a predetermined threshold value Tht (for example, 0.5 seconds). The time ts when the moving operation is performed includes information on whether or not the user touches the display panel 202 obtained from the display panel 202, and information on the start and end times of contact of the display panel 202 by the user obtained from the clock unit 209. Based on the above, the main control unit 210 calculates.

  When the time ts when the moving operation is performed is smaller than the predetermined threshold value Tht (step S30: Yes), the process proceeds to step S40. When the time ts during which the moving operation is performed is equal to or greater than the predetermined threshold value Tht (step S30: No), the process ends. Note that the determination performed in step S30 is a determination as to whether the movement operation performed by the user is a sweep operation (step S30: Yes) or a drag operation (step S30: No). When the movement operation performed by the user is a drag operation, the process in FIG. 2 is terminated, and the map is displayed by a process other than the process in FIG. As described above, if the time required for the moving operation is 0.2 seconds, the process proceeds to step S40.

  In step S40, the main control unit 210 determines whether or not the moving amount ds of the moving operation is greater than a predetermined threshold value Ths. Here, Ths is, for example, 1/20 of the lateral width W of the touch panel 202b. However, Ths may be other values such as 1/10 of W.

  The main control unit 210 obtains information on the position of the representative point of the contact portion Pf1 (x1, y1) and information on the position of the representative point of the contact portion Pf2 (x2, y2) from the display panel 202, and follows the following formula: The distance ds between the two can be calculated. The representative point of the contact part Pf1 and the representative point of the contact part Pf2 can be, for example, the center of gravity of each contact part, or can be the point closest to the other contact part among the contact parts. The positive direction of the y-axis when representing the position information of each contact portion is the upward direction U0 of the map display when the map is displayed in step S10 of FIG. The positive direction of the x axis is the right direction when the map is displayed in step S10.

  When the moving amount of the moving operation is equal to or less than the threshold value Ths (step S40: No), the process ends. In this case, processing other than the processing in FIG. 2 is performed according to the movement operation. If the moving amount of the moving operation is greater than the threshold value Ths (step S40: Yes), the process proceeds to step S50.

  In step S50, absolute values R1 and R2 of the ratio of the displacement dxm along the x-axis direction of the moving operation and the displacement dym along the y-axis direction are calculated according to the following formula.

  Then, main controller 210 determines whether either R1 or R2 is greater than Thr. If either R1 or R2 is greater than Thr, the process proceeds to step S60. If both R1 and R2 are equal to or less than Thr, the process proceeds to step S70. Here, for example, Thr = 4.

  FIG. 3 is a diagram illustrating an example of the content of the determination in step S50. The moving operation start position Pf1 (see FIG. 1) is shown in the center of FIG. In FIG. 3, a range Da0 to Da3 in four directions indicated by hatching is a range in which either R1 or R2 is larger than Thr (see step S50 in FIG. 2). The range in which R1 = | dym / dxm | is larger than Thr (4 in the present embodiment) is a range of plus / minus Θth with respect to the upward direction U0 and a range of plus / minus Θth with respect to the downward direction U1. The range in which R2 = | dxm / dym | is larger than Thr is a range of plus / minus Θth with respect to the right direction U2 and a range of plus / minus Θth with respect to the left direction U3. Here, the clockwise direction is a positive direction.

  In this embodiment, since the threshold value Thr in step S50 is 4, Θth is an angle where the tangent (tan) is 1 / Thr = 0.25, that is, atan (0.25) = about 14.0. Degree. This angle is ½ or less of 90 degrees that is an angle formed by a pair of reference axis directions (for example, the positive direction of the x axis and the positive direction of the y axis) forming the smallest angle. In FIG. 3, the ranges Da0 to Da3 indicated by hatching are shown as finite ranges in order to facilitate understanding of the technology. However, the range where either R1 or R2 is larger than Thr extends infinitely in each direction.

  In the determination performed in step S50, the input direction from the start point to the end point of the movement operation is substantially the predetermined threshold angle Θth with respect to the reference axis direction U0 to U3 (in this embodiment, Θth is This is a determination of whether or not the direction is less than about 14.0 degrees. In FIG. 3, an example of the starting point of the moving operation is the central contact portion Pf1. Examples of the end point of the moving operation are the contact portions Pf2 and Pf3. The input directions in these examples are indicated by alternate long and short dash lines D01 and D03 in FIG. A functional unit of the main control unit 210 that executes the process of step S50 is shown in FIG.

  In step S60 of FIG. 2, the main control unit 210 changes the value of the smaller absolute value of the displacements dxm and dym to 0. Then, the position information of the smaller displacement among the x-axis direction, the y-axis direction, and the position information of the end point of the moving operation is set to the same value as the start point. That is, when | dxm | <| dym |, x2 obtained as the position information in the x-axis direction of the representative point of the contact portion Pf2 is used as the position information x1 in the x-axis direction of the representative point of the contact portion Pf1. Replace with the same value. When | dxm |> | dym |, y2 obtained as position information in the y-axis direction of the representative point of the contact portion Pf2 is the same value as the position information y1 in the x-axis direction of the representative point of the contact portion Pf1. Replace with

  For example, in the example of the movement operation Sw01 in FIG. 3, the contact portion Pf2 is located within the hatched range Da3 on the left side of the contact portion Pf1 (S50: Yes). At this time, | dxm |> | dym |. Therefore, the position information y2 of the end point in the y-axis direction is replaced with y1. This process is equivalent to replacing the position of the contact portion Pf2 with the position (x2, y2a) indicated by Pf2a, that is, (x2, y1). The position in the y-axis direction of the position (x2, y2a) is the same as the position y1 in the y-axis direction of the contact portion Pf1 (y2a = y1). As a result, the subsequent processing in step S70 is performed in the same manner as when the moving operation Sw02 from the contact portion position Pf1 toward the position Pf2a is performed. Note that the functional unit of the main control unit 210 that executes the process of step S60 is shown as an input information modification unit 232 in FIG.

  On the other hand, if both R1 and R2 are equal to or less than Thr in step S50 of FIG. 2, the process skips step S60 and proceeds to step S70. As an example of this case, FIG. 3 shows a moving operation Sw03. The movement operation Sw03 is a movement operation performed from the contact portion Pf1 toward the contact portion Pf3. In this case, the position information (x3, y3) of the contact portion Pf3, which is the end point of the moving operation, is used as it is in the processing of the following step S70.

  In step S70, the map of the range Ad1 located at the position (−Cr × dxm, −Cr × dym) is displayed with respect to the map range Ad0 displayed on the display panel 202 in step S10. That is, the vector Am from the map range Ad0 displayed in step S10 to the map range Ad1 displayed in step S70 is 180 degrees with respect to the displacement vector of the moving operation indicated by (dxm, dym). And a vector whose size is Cr times (Cr> 1). Here, Cr is, for example, “5”. The map displayed in step S70 is a part of a wider map such as a map of Japan as a whole, and is a map in a different range from the map displayed in step S10. The functional unit of the main control unit 210 that executes the process of step S70 is shown in FIG.

  Thus, by moving the display range of the image in a direction that is 180 degrees with the direction of the moving operation by the user, the user feels as if he / she sent the map image with his / her finger. For this reason, the user can intuitively operate the display range of the map image.

  FIG. 4 is a diagram illustrating the positional relationship between the example map range Ad0 displayed in step S10 of FIG. 2 and the map range examples Ad1 and Ad2 displayed in step S70. In the wide area map Ma shown in FIG. 4, R01 to R04 are roads. Pc1 to Pc3 are facilities such as buildings. Rv01 is a river. In addition, examples Sw01 and Sw03 of the movement operation are shown in the example Ad0 of the map range displayed in step S10.

  If the movement operation detected in step S20 in FIG. 2 is, for example, movement operation Sw01, the displacement dym = 0 in the y-axis direction is set in step S60, and y2 is replaced with y1 (see FIG. 3). As a result, the vector Am (−Cr × dxm, −Cr × dym) from the display range Ad0 in step S10 to the display range Ad1 in step S70 becomes Am1 (−5 × dxm, 0). Here, since the move operation Sw01 is a move operation in the left direction U3 (that is, dxm <0), the map range Ad1 displayed in step S70 is dxm in the right direction U2, as shown in FIG. Is a range at a distance Lm1 that is five times the absolute value of. In FIG. 4, the center point of the range Ad0 is indicated by Dc0, and the center point of the range Ad1 is indicated by Dc1. Further, dxm in the case of the moving operation Sw01 is indicated by dxm1, and dym is indicated by dym1. A vector of movement of the display range corresponding to the movement operation Sw01 is denoted by Am1.

  On the other hand, when the movement operation detected in step S20 of FIG. 2 is, for example, the movement operation Sw03, the process of step S60 is not performed. As a result, the vector Am2 heading from the display range Ad0 in step S10 to the display range Ad2 in step S70 becomes (−Cr × dxm, −Cr × dym) using the position information (x2, y2) of the contact portion Pf2 as it is. . Here, since the move operation Sw03 is a move operation in the lower left direction, the map range Ad2 displayed in step S70 is a range in the upper right direction that is at a distance Lm2 that is five times the distance between the contact portions Pf1 and Pf3. is there. In FIG. 4, the center point of the range Ad2 is indicated by Dc2.

  That is, in this embodiment, when the user's movement operation is an operation in a predetermined range in the vicinity of the upward direction U0, the downward direction U1, the right direction U2, and the left direction U3 (range Da0 in FIG. 3). ~ Da3 and the moving operation Sw01), the display range of the image is determined on the assumption that the moving operation is performed in one of the up, down, left, and right reference axis directions close to the direction of the moving operation. When the moving operation is performed in directions close to the up, down, left, and right directions, the user often wants to move the display range in any of the up, down, left, and right directions. Therefore, according to the present embodiment, in such a case, the user can accurately perform the map image along the desired direction, that is, the up, down, left, and right directions without performing the moving operation in the up, down, left, and right directions. Can be scrolled.

  On the other hand, when the moving operation by the user is a moving operation that is not in a predetermined range in the vicinity of the upper direction U0, the lower direction U1, the right direction U2, and the left direction U3, in this embodiment, the moving operation The display range of the image is determined according to the orientation (see, for example, Sw03 in FIG. 3 and Sw03 and Am2 in FIG. 4). When the moving operation is performed in a direction away from the vertical and horizontal directions to some extent, the user often wants to actually move the image display range in the direction of the moving operation. Therefore, according to the present embodiment, in such a case, the map image can be scrolled faithfully to the position of the user.

  In addition, step S20 in a present Example is equivalent to the process of receiving the instruction | indication by a user's continuous input operation. Steps S30 to S70 correspond to a process of controlling the display of the output unit in accordance with an instruction by the input operation. The movement operation corresponds to a continuous input operation.

B. Variation:
The present invention is not limited to the above-described examples and embodiments, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible.

B2. Modification 2:
In the above embodiment, the input operation performed by the user is a sweep operation (movement operation) performed through the touch panel. However, the input operation performed by the user may be another operation. For example, in an aspect in which a mouse or a trackball is provided as the input unit, the mouse displayed on the display unit is moved by moving the mouse or rotating the trackball while pressing a predetermined button of the mouse or the trackball. A drag operation for moving with a trackball can be an input operation. The touch panel may be provided separately from the display.

  Further, the input unit can be configured to receive an instruction by a three-dimensional input operation. In such an aspect, for example, when at least a part of the input device can recognize a three-dimensional position, at least a part of the input device is set to 3 while pressing a predetermined button of the input device. It can also be an operation of moving in the dimensional space. In such an aspect, the output unit is preferably configured to display a three-dimensional image.

  In other words, the input unit may be any unit that can receive an instruction by a user's continuous input operation. However, it is preferable that the input unit is capable of receiving position information input as the input information capital.

B3. Modification 3:

  In the above embodiment, the ratio R1, R2 between the displacement amount in the x-axis direction and the displacement amount in the y-axis direction is used to determine whether or not the direction of the moving operation as the input operation is a direction in the vicinity of the reference axis direction. Is determined. However, in a specific process, the threshold value indicating whether or not the direction is in the vicinity of the reference axis direction may be determined by an angle Θth expressed in units such as degrees or radians, or a triangle. It may be determined by a function. The threshold value is determined by a trigonometric function, for example, the threshold angle Θth is determined so that tan (Θth) = 0.25. Note that Θth at which tan (Θth) = 0.25 is about 14.0 degrees.

  However, the angle Θth, which is a substantial threshold value, is equal to or less than ½ of the angle formed by the pair of reference axis directions closest to each other (for example, in two dimensions, the positive direction of the x axis and the positive direction of the y axis). It is preferable that Furthermore, the angle Θth, which is a substantial threshold value, is more preferably 1/3 or less, and still more preferably 1/4 or less, of the angle formed by the pair of reference axis directions closest to each other.

  In the above embodiment, the reference axis direction is four directions that divide 360 degrees into four equal parts. However, the reference axis direction can be set more or less. The reference axis direction preferably includes N directions (N is an integer of 2 or more) that equally divides 360 degrees into N in a plane. However, it is preferable to set the threshold angle Θth smaller as the reference axis direction increases. That is, the threshold angle Θth is preferably ½ or less of the angle formed by the two reference axis directions forming the smallest angle. With such an aspect, it is possible to uniquely determine the reference axis direction in which the input information is to be modified assuming that the input operation is performed in that direction.

  Note that the angle range in which the input position information is replaced (step S60 in FIG. 2) is represented by a fan or isosceles triangle with an indefinite height when the input operation is two-dimensional (FIG. 3). (See Da0 to Da3). On the other hand, when the input operation is three-dimensional, the angle range in which the input position information is replaced is represented by a conical range having an indefinite height around the reference axis direction.

B4. Modification 4:
In the above embodiment, the reference axis directions U0 to U3 are directions orthogonal to each other. However, the reference axis direction may be another direction. For example, the set of reference axis directions may include, in addition to directions orthogonal to each other, for example, directions that bisect an angle formed by two reference axis directions orthogonal to each other by 45 degrees. In addition to the directions orthogonal to each other, the set of reference axis directions can include, for example, two directions that equally divide the angle formed by two reference axis directions orthogonal to each other into 30 degrees each. Furthermore, the set in the reference axis direction can be n directions that divide 360 degrees into n in a plane (n is an integer of 2 or more).

  In the above embodiment, the reference axis direction is a direction that forms 90 degrees with the other reference axis direction in the closest direction. For this reason, in step S60, the displacement having the smaller absolute value of the displacement in the x-axis direction and the displacement in the y-axis direction is changed to zero. However, the process in the case where the input direction is in the vicinity of the reference axis direction (for example, step S60 in FIG. 2) can be performed by other methods.

  Further, for example, the process of converting the vector V0 of the moving operation into the vector V1 obtained by projecting the vector V0 of the moving operation perpendicularly to the reference axis direction (specific reference axis direction) closest to the input direction can be performed. . It is also possible to modify the movement operation vector V0 to a vector V2 obtained by changing the direction of the movement operation vector V0 in the direction of the specific reference axis without changing the magnitude. That is, the process when the input direction is in the vicinity of the reference axis direction can be performed based on the input operation and the specific reference axis direction. Various known methods can be adopted as the conversion process. Then, as a result of performing the conversion process, it is preferable that the same control as that in the case where the input operation is performed along the specific reference axis direction is performed.

B5. Modification 5:
In the above embodiment, when the process of step S60 in FIG. 2 is performed, either the displacement dxm in the x-axis direction or the displacement dym in the y-axis direction is set to 0, so the other displacement ( In FIG. 4, the amount of movement Lm1 of the display range of the map is determined based on the displacement dxm1) in the x-axis direction. However, the amount of movement of the map display range can be determined by other methods. For example, the amount of movement of the map display range can also be determined based on the distance ds between the start point and end point of the moving operation (see Expression (1)). That is, the amount of movement of the image display range is at least the distance between the start point and the end point of the input operation with respect to the specific reference axis direction, which is the reference axis direction that forms an angle less than the predetermined value Θth with respect to the input operation direction. It can be set as the aspect which exists in the position separated by Cr times (Cr> 1). In other words, when determining the amount of movement of the image display range, the displacement amount in the direction perpendicular to the specific reference axis direction (dym1 in the example of FIG. 4) can be considered. It can also be set as the aspect which is not carried out.

  Further, in the above-described embodiment, the coefficient Cr of the “map movement amount” with respect to the “movement amount of the movement operation” in steps S40 to S70 is a fixed value “5”. However, the coefficient Cr of the image movement amount with respect to the operation amount of the input operation or the amount of a certain component of the input operation (the displacement amount dxm1 of the x component in the example of FIG. 4) varies depending on the speed of the sweep operation. It can also be a coefficient. In the example of FIG. 3, the main control unit 210 can obtain information on the position of the representative point of the contact part Pf1 and the representative point of the contact part Pf2 from the display panel 202 and calculate the distance between the two. The main control unit 210 can calculate the speed of the movement operation (sweep operation) from the time ts when the movement operation is performed and the movement amount of the movement operation. The main control unit 210 can determine the coefficient Cr so that the value increases as the speed of the moving operation increases. For example, the coefficient Cr may be determined so as to be able to take a plurality of fixed values according to the speed range of the moving operation, or may be determined by a function having the speed of the moving operation as an input.

  That is, the movement amount of the image to be displayed can be determined based on the positional relationship (for example, relative positional relationship) between the start point and the end point of the input operation.

B6. Modification 6:
In the embodiment, the threshold value Tht in step S30 is 0.5 seconds. However, whether to execute the process for displaying the first and second areas (see steps S40 to S70 in FIG. 2) or whether to execute the process for not displaying the first and second areas (step S80 in FIG. 2). The threshold value that serves as a determination criterion can be other values such as 0.2 seconds, 0.3 seconds, and 0.4 seconds. However, the threshold is preferably 0.3 to 0.6 seconds, and more preferably 0.45 to 0.55 seconds.

B7. Modification 7:
Map image data as image data stored in the map database 178 of the server 170 may be stored as raster data or may be stored as vector data. The map image data transmitted to the mobile phone 200 as a terminal device carried by the user may be raster data or vector data. Further, either one of the map image data in the map database 178 and the map image data transmitted to the terminal device can be vector data and the other can be raster data.

B8. Modification 8:
In the said Example, a map display system contains the server 170 and the mobile telephone 200 as the component. However, the mobile phone 200 as a terminal may be, for example, a PDA (Personal Data Assistant), a portable image display device having an image display function, a notebook computer, or the like as a device not having a telephone function. it can. In addition, the terminal may include a GPS unit that can generate current position information representing the current position of the terminal based on radio waves received from GPS (Global Positioning System) satellites. preferable.

  The server 170 may be a single server or may be realized by a plurality of servers connected via a network. That is, the image display device may be one device in which each component is housed in one housing. The image display device can also be configured as two or more devices whose constituent elements are connected to each other via a data communication line. For each function realized by the image display device, one or more arbitrary functions can be assigned to each device. Each function may be realized by one device, or two or more devices may be realized in cooperation. In an aspect in which two or more components are connected by a communication line, the output unit that outputs information to the user is preferably carried by the user.

B9. Modification 9:
In the above embodiment, a part of the configuration realized by hardware may be replaced with software, and conversely, a part of the configuration realized by software may be replaced by hardware. For example, the mobile phone 200 may be configured not to include the command input unit 206 as a hardware key.

  A computer program for realizing such a function is provided in a form recorded on a computer-readable recording medium such as a floppy disk or a CD-ROM. The host computer reads the computer program from the recording medium and transfers it to the internal storage device or the external storage device. Alternatively, the computer program may be supplied from the program supply device to the host computer via a communication path. When realizing the function of the computer program, the computer program stored in the internal storage device is executed by the microprocessor of the host computer. Further, the host computer may directly execute the computer program recorded on the recording medium.

  In this specification, the host computer is a concept including a hardware device and an operation system, and means a hardware device that operates under the control of the operation system. The computer program causes such a host computer to realize the functions of the above-described units. Note that some of the functions described above may be realized by an operation system instead of an application program.

  In the present invention, the “computer-readable recording medium” is not limited to a portable recording medium such as a flexible disk or a CD-ROM, but an internal storage device in a computer such as various RAMs and ROMs, An external storage device fixed to a computer such as a hard disk is also included.

170 ... Server 172 ... Communication unit 174 ... Control unit 176 ... Storage unit 178 ... Map database 200 ... Mobile phone 202 ... Display panel 202a ... Liquid crystal display 202b ... Touch panel 203 ... Audio output unit 204 ... Vibration mechanism 205 ... Communication unit 206 ... Command Input unit 206b ... Cursor key 209 ... Clock unit 210 ... Main control unit 211 ... CPU
212 ... RAM
213 ... ROM
220 ... Call control unit 230 ... Application software Ad0 ... Display range of map in step S10 Ad1 ... Display range of map in step S70 when moving operation Sw01 is performed Ad2 ... In step S70 when moving operation Sw03 is performed Map display range Am1 ... Vector from map display range Ad0 to map display range Ad1 Am2 ... Vector from map display range Ad0 to map display range Ad2 Da0 ... In the range of plus or minus Θth with respect to upward direction U0 A portion representing the direction Da1... A portion representing the direction in the range of plus or minus .THETA.th with respect to the upward direction U1. Da2... A portion representing the direction within the range of plus or minus .THETA.th with respect to the upward direction U2. A part indicating the direction of the range of Θth INT ... inter Net Lm1 ... Distance between map display range Ad0 and map display range Ad1 Lm2 ... Distance between map display range Ad0 and map display range Ad2 Ma ... Wide area map Pf1 ... Contact part at start of movement operation Pf2, Pf31 ... Movement Contact part at the end of the operation Pf2a ... contact part in which the position information is replaced Sw01, Sw02 ... moving operation U0 ... upward direction (reference axis direction)
U1 ... Downward direction U2 ... Rightward direction U3 ... Leftward direction ds ... Movement amount dxm1 ... Displacement from map range Ad0 along x-axis direction (U2) to map range Ad1 along dym1 ... along y-axis direction (U0) Displacement from the map range Ad0 to the map range Ad1 ts ... time when the move operation was performed Θth ... angle range of the move operation to be processed in step S60

Claims (8)

An image display device that displays an image corresponding to information input by a touch panel,
An input unit that receives input information by an input operation by an operation of moving a contact portion that touches the touch panel;
A control unit capable of controlling the display of the output unit according to the input operation,
The control unit is one of a plurality of reference axis directions including an original reference direction that becomes a reference when specifying a predetermined direction and a direction that forms 90 degrees or 180 degrees with respect to the original reference direction. On the other hand, when the angle of the input direction specified by the input operation from the start point to the end point is less than the threshold angle Θth (Θth <45), An image display device that specifies a direction as if the input operation was performed in a specific reference axis direction. An image display device,
An input unit capable of receiving an instruction by a user's continuous input operation;
An output unit capable of displaying an image;
A control unit capable of controlling the display of the output unit according to an instruction by the input operation,
The control unit is configured to start the input operation with respect to any of a plurality of reference axis directions including a predetermined original reference direction and a direction that is 90 degrees or 180 degrees with respect to the original reference direction. When the input direction, which is a direction from the direction to the end point, forms an angle less than a predetermined threshold angle Θth, along a specific reference axis direction that is a reference axis direction that forms an angle less than Θth with respect to the input direction The same control as when the input operation was performed is performed on the display of the output unit,
The threshold value angle Θth is an image display device that is ½ or less of an angle formed by a pair of reference axis directions forming the smallest angle. The image display device according to claim 2,
The output unit is a display;
The input unit is a touch panel provided on the display,
When the input operation is performed in a state where the first partial image, which is a part of the entire image, is displayed on the output unit, the control unit is the other part of the entire image. 2 partial images are displayed on the output unit,
The original reference direction is an upward direction of display in a state where the first partial image is displayed on the output unit,
The second partial image is in the whole image,
A partial image located in a direction that forms 180 degrees with the specific reference axis direction with respect to the first partial image;
An image display device located at a position separated from the first partial image by a distance determined according to a positional relationship between the start point and the end point of the input operation. The image display device according to claim 3,
The whole image is an image display device which is an image representing a map. The image display device according to claim 3 or 4,
In the entire partial image, the second partial image is Cr times the distance between the start point and the end point of the input operation in at least the specific reference axis direction with respect to the first partial image (Cr > 1) Image display device located at a distance of 1>. The image display device according to any one of claims 2 to 5,
The plurality of reference axis directions further includes a direction that forms 45 degrees with respect to the original reference direction and a direction that forms 90 degrees or 180 degrees with respect to the original reference direction. A method of displaying an image,
(A) receiving an instruction by a user's continuous input operation;
(B) controlling the display of the output unit in response to an instruction by the input operation,
The step (b)
A direction from the start point to the end point of the input operation with respect to any of a plurality of reference axis directions including a predetermined original reference direction and a direction that is 90 degrees or 180 degrees with respect to the original reference direction. When the input direction is less than a predetermined threshold angle Θth, the input operation is performed along a specific reference axis direction that is a reference axis direction that is less than Θth with respect to the input direction. The same control as in the case where
The threshold angle Θth is equal to or less than ½ of an angle formed by a pair of reference axis directions forming the smallest angle. A computer program for displaying an image on an output unit connected to a computer,
(A) a function of receiving an instruction by a user's continuous input operation;
(B) the computer can realize a function of controlling display of the output unit in response to an instruction by the input operation;
The function of controlling the display of the output unit is for any of a plurality of reference axis directions including a predetermined original reference direction and a direction that is 90 degrees or 180 degrees with respect to the original reference direction. The input direction that is the direction from the start point to the end point of the input operation is a reference axis direction that forms an angle less than Θth with respect to the input direction when the input direction forms an angle less than a predetermined threshold angle Θth The same control as when the input operation is performed along the reference axis direction includes a function of performing display on the output unit,
The computer program, wherein the threshold angle Θth is ½ or less of an angle formed by a pair of reference axis directions forming the smallest angle.

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