JP4636151B2 - Map display device and map display method - Google Patents

Description

The present invention relates to a map display device and a map display method for rotating a screen displayed by a screen display device based on an instruction given by a user from a coordinate input device, for example.

The software or the like for drawing figures using a navigation device or a computer, the operation of moving by a technique such as scrolling to the drawings to be displayed in the display unit Di scan play apparatus or the like are indispensable. Such screen moving operation of the pointing device such as a joystick or a mouse connected to the computer, the scroll bar or the like of the keyboard is being used.
Prior art documents considered to be similar to the present invention are described in Patent Documents 1 and 2.
JP-A-4-130971 Japanese Patent Laid-Open No. 1-142818

However, when operating the movement of the screen by the joystick and scroll bar or the like, while watching the display of the screen, in order to perform the operation means away from the screen, intuitively grasp operational feeling for the user who is not familiar with the operation of the computer Because it is difficult and requires proficiency, it was difficult to use it immediately after purchase.

  In addition, for example, in a navigation device, when the state of a course in an arbitrary direction is examined with reference to its own position on a map, there is a limitation in use that cannot be handled by a conventional screen movement method.

The present invention has been made to solve the above problems, and a portable map display device and map display method capable of moving the screen in all directions with respect to a reference position set on the display screen of the display device. The purpose is to provide.

In order to solve the above problems, a map display device of the present invention stores a touch panel that outputs contact state information indicating a contact state with a contact unit and coordinate information corresponding to a contact position of the contact unit, and map data. The storage unit and the contact state information indicating that the contact means has contacted from the touch panel and the coordinate information at that time when the contact means moves in a circular arc around the reference point set in advance on the map as the starting point information The contact state information of the contact means and the coordinate information at that time are received as end point information from the touch panel every unit time , and the rotation angle is determined based on the fan-shaped figure formed by the end point information from the start point information centered on the reference point. Table of forming a control unit which calculates and outputs the rotation angle information, receives the rotation angle information from the control unit, the display data obtained by rotating the map data storage unit at a rotation angle And a control unit, and a screen display means for displaying a map data rotated output from the display control unit.

In relation to the display screen by the display device , for example, an instruction from the user is input from the coordinate input device based on the coordinates of the displayed screen. This instruction is input to the display control means via the control means as information for moving the screen read and displayed from the storage means. The display control means rotates the displayed screen based on the instruction content.

ADVANTAGE OF THE INVENTION According to this invention, the map display apparatus and map display method which can perform screen movement to all directions regarding the reference | standard position set to the display screen of a display apparatus can be provided.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are preferable specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. As long as there is no description of the effect, it is not restricted to these aspects.

  1 and 2 show a portable navigation device as an example of an electronic apparatus to which a display screen moving device according to the present invention is applied. FIG. 1 is a schematic perspective view of the navigation device, and FIG. It is a disassembled perspective view. In these drawings, a portable navigation device 10 which is an electronic device includes a housing 11 and a navigation device body 12 including an antenna portion exposed to the outside of the housing 11. The navigation device body 12 incorporates an information processing system including an antenna (not shown) that can receive signals wirelessly from, for example, hygiene or a predetermined base station, and predetermined navigation software centered on a small computer. Further, the navigation apparatus body 12 may be provided with not only information from the antenna but also an auto gyro etc. to perform independent navigation guidance.

  As shown in FIG. 2, the housing 11 having a size and shape convenient for carrying includes a case 14 and a cover 13 fixed to the front surface of the case. A display window 15 is formed on the front surface (upper surface in the drawing) of the cover 13. Further, the case 14 accommodates a touch panel 16 as a coordinate input device and a liquid crystal panel 17 having a built-in drive circuit disposed on the back side of the touch panel 16 so as to be exposed from the display window 15. These display window 15, touch panel 16, liquid crystal panel 17 and the like constitute a screen display means.

  Furthermore, the case 14 incorporates an optical disk device 18 using, for example, magneto-optical recording, and an external recording medium 18a as a main storage device storing map information and the like can be attached to and detached from the optical disk device 18. ing. The navigation device body 12 is connected to the screen display device and the optical disk device 18, and is driven by a built-in battery 19 accommodated in the case 14.

  FIG. 3 is a block diagram showing an electrical configuration of a display screen movement control device 20 (hereinafter referred to as “movement control device 20”) built in the electronic apparatus 10. As shown in FIG. In the figure, a movement control device 20 includes, for example, a storage unit 21 that stores data read from the optical disc device 18 as necessary, and a display control unit 22 to which screen information read from the storage unit 21 is given. A screen display means 23 for displaying the screen information given through the display control means, and a touch panel 16 as a coordinate input means for the user to input the coordinate information of the screen corresponding to the screen display means 23. And. The coordinate input means 16 gives coordinate data from the user to the control unit 24, and the control unit 24 gives instructions to the storage unit 21 and the display control unit 22 as described later. It has become.

  Here, the storage unit 21 is composed of, for example, a video RAM capable of storing a video signal, and from the external storage medium 18a of FIG. 1 in which map data and the like are stored in order to perform a necessary screen display on the screen display means 23. The screen data is read according to an instruction from the control unit 24. And this memory | storage part 21 can be combined with the rewritable memory | storage means which comprises the navigation apparatus main body 12. FIG. FIG. 4 shows an example of screen data read by the storage unit 21. In the movement control device 20, as will be described later, the screen data D <b> 2-2 displayed on the display unit 23 displays image data D <b> 2 that is rotated and moved by a designated angle around a reference point O designated by the user. It is supposed to let you. For this reason, the storage unit 21 uses the screen data 2-1 as the data related to a wider area based on the instruction of the control unit 24, using the screen data 2-1 as an arbitrary angle around the reference point O. The screen data D1 covering all the rotated data is captured at a time.

  For example, a known touch panel is used as the coordinate input device 16. When the user touches an arbitrary position on the touch panel 16 with a fingertip or the like corresponding to the display screen of the screen display unit 23, the coordinate information is controlled. It is output to the unit 24.

  For example, a small computer is used as the control unit 24. For example, the control unit 24 may be configured as an additional function of a CPU constituting the navigation apparatus body 12, or may be a small computer connected thereto. Furthermore, the control unit 24 includes software for performing processing as described later, and may include a timer T or the like as a time measuring means for controlling screen rotation movement as necessary. In addition, a part of the control described later performed by the control unit 24 may be performed by a relay circuit or the like that is integral with or separate from the control unit 24.

As will be described later, the control unit 24 calculates data for rotationally moving the display screen based on information input from the touch panel 16 and provides the data to the display control unit 22. That is, the control unit 24 is given from the car navigation device 12, based on such current location information of the user, reads out the necessary map information and the like from the external storage medium 18a of the optical disc device 1 8, the storage unit 21 is instructed to store the data. Further, the control unit 24 converts the coordinates on the display screen of the screen data so that the coordinate data related to the screen data before the rotational movement, for example, matches the content of the rotational movement instruction given via the touch panel 16. It is calculated and given to the display control unit 22 as rotational movement data.

  The display control unit 22 acquires screen information for display from the storage unit 21 according to an instruction from the control unit 24, converts the coordinate position of the screen data based on the rotational movement data provided from the control unit 24, The screen data and the coordinate data after conversion are sent to the screen display means 23.

  The screen display means 23 is a display device having a pixel configuration corresponding to the coordinate position of the display screen, for example, and is configured by a display device such as a liquid crystal panel or a CRT including a drive control circuit as described above.

  Of the above-described configuration, all or part of the storage unit 21, the display control unit 22, and the control unit 24 may be combined into a single integrated circuit.

FIGS. 5 to 9 show examples of the display screen rotation movement method by the movement control device 20 described above. First, a first embodiment of the screen rotation movement method will be described with reference to FIGS. 5 and 6. To do.
(First Embodiment of Screen Rotation Movement Method)
Figure 6 shows how to instruct the touch panel 16 to expose the pan by the movement controller 20 for performing rotational movement of the screen from the window portion 15 of the electronic equipment 10, Fig. 5 shows a flowchart thereof . In FIG. 5, the window 15 displays a screen corresponding to the screen D1 shown in FIG. 4 on the liquid crystal panel 17 of FIG. 1, and the electronic device 10 is provided with an on / off switch for the screen rotational movement mode. If it is, it shall be turned on.

  A user (not shown) uses a contact means TP such as a touch pen to select a certain point on the touch panel 16 as a coordinate input device as shown in FIG. 6B (UST11). With this initial contact, the coordinates of the contact point are sent to the control unit 24 of FIG. 3, and the control unit 24 sets this as the start point P (coordinates) (ST11). In this embodiment, the rotation center of the screen is set in advance, and the operation corresponding to FIG. 6A is not performed. Subsequently, as described above, the control unit 24 uses the coordinates on the touch panel 16 as a line segment between the point O set on the coordinates in advance as the rotation center of the screen and the first contact point P. An OP is set (ST12) (FIG. 6C).

On the other hand, after the user touches the point P, the user releases the pen at a desired point while holding the contact and moving the pen on the touch panel 16 (UST12). The control unit 24 detects that the pen has been released via the touch panel 16, and sets the point (coordinates) at which the pen is released as the end point Q (ST13) (FIG. 6D). Subsequently, the control unit 24 sets a line segment OQ (ST14) (FIG. 6E), and obtains an angle θ formed by the line segment OP and the line segment OQ (ST15) (FIG. 6F).

  Next, the control unit 24 calculates a coordinate value obtained by rotating the screen D <b> 2-1 shown in FIG. 4 by the angle θ on the coordinates, and sends it to the display control unit 22. The display control unit 22 sets a new screen D2-1 with the coordinates after rotational movement sent from the control unit 24 within the range of the screen information D1 shown in FIG. It is displayed on the display means 23 (ST16). Thereby, the rotational movement of the display screen is completed (ST17), and a standby state is again prepared for a new instruction.

  As described above, according to the above-described embodiment, the user can give a rotation instruction directly to the display screen via the touch panel 16, and the operation is extremely simple as compared with the case of using an operation unit separated from the screen. Thus, the rotational movement of the display screen can be realized. In particular, in the case of a portable electronic device as shown in FIG. 1, when the main body and the display screen are compactly integrated, it is difficult to provide a separate pointing device or the like. This can be realized on a simple device configuration. In addition, when rotating the display screen, the user can set the rotation angle visually based on his / her feeling on the screen without setting a fine movement angle. And it is easy to grasp in advance the image of the rotational movement to be executed.

(Second Embodiment of Screen Rotation Movement Method)
FIG. 7 shows a second embodiment of the screen rotational movement method. The second embodiment of the rotational movement method is different from the first embodiment described above in that the rotation center of the screen is first selected. Like the first embodiment, FIG. 6 shows a state that instructs the touch panel 16 to expose the pan by the movement controller 20 for performing rotational movement of the screen from the window portion 15 of the electronic equipment 10. In FIG. 7, a screen display corresponding to the screen D <b> 1 shown in FIG. 4 is displayed on the window 15 by the liquid crystal panel 17 of FIG. 1, and the electronic device 10 is provided with an on / off switch for the screen rotational movement mode. If it is, it shall be turned on.

  A user (not shown), for example, uses a touch pen TP or the like to select a certain point on the touch panel 16 that is a coordinate input device as shown in FIG. 6A (UST1). By this initial contact, the coordinates of the contact point are sent to the control unit 24 of FIG. 3, and the control unit 24 sets this as the rotation center O of the screen (ST1). Further, as shown in FIG. 6B, the user selects one point different from the above on the touch panel 16 (UST2). By this second contact, the coordinates of the contact point are sent to the control unit 24 of FIG. 3, and the control unit 24 sets this as the start point P (coordinates) (ST2).

  Subsequently, the control unit 24 sets a line segment OP between the rotation center O of the screen by the first contact and the contact point P by the second contact at the coordinates on the touch panel 16 (ST3). (FIG. 6C).

On the other hand, the user holds the contact after touching the point P (UST3), and moves the pen on the touch panel 16 while releasing the contact of the pen at a desired point (UST4). The control unit 24 detects that the pen has been released via the touch panel 16, and sets the point (coordinates) at which the pen is released as the end point Q (ST4) (FIG. 6D). Subsequently, the control unit 24 sets a line segment OQ (ST5) (FIG. 6E), and obtains an angle θ formed by the line segment OP and the line segment OQ (ST6) (FIG. 6F).

  Next, the control unit 24 calculates a coordinate value obtained by rotating the screen D <b> 2-1 shown in FIG. 4 by the angle θ on the coordinates, and sends it to the display control unit 22. The display control unit 22 sets a new screen D2-1 with the coordinates after rotational movement sent from the control unit 24 within the range of the screen information D1 shown in FIG. It is displayed on the display means 23 (ST7). As a result, the rotational movement of the display screen ends (ST8), and a standby state is again prepared for a new instruction.

  Therefore, unlike the first embodiment, the second embodiment of this screen movement method requires an operation of first selecting the rotational movement center of the screen. Therefore, the user can rotate the display screen. There is an advantage that an arbitrary position can be designated as the center. For this reason, in 2nd Embodiment, all the effects which 1st Embodiment show | plays can be exhibited, and in addition to this, a user's freedom degree can be improved more at the time of rotational movement of a screen. .

(Third embodiment of screen rotation movement method)
8 and 9 show a third embodiment of the screen rotational movement method. This embodiment is a rotational displacement scroll mode in which the rotational movement of the screen is performed in real time. Figure 8 is a flow chart of rotation control of movement of the screen, the state 9 that instructs the touch panel 16 to expose the pan by the movement controller 20 for performing rotational movement of the screen from the window portion 15 of the electronic equipment 10 Show. In FIG. 9, the window 15 displays a screen corresponding to the screen D <b> 1 shown in FIG. 4 by the liquid crystal panel 17 of FIG. 1, and the electronic device 10 is provided with an on / off switch for the screen rotational movement mode. If it is, it shall be turned on.

  A user (not shown) uses a touch pen or the like to select one point on the touch panel 16 that is a coordinate input device (UST21). With this initial contact, the coordinates of the contact point are sent to the control unit 24 of FIG. 3, and the control unit 24 sets this as the rotation center O of the screen (ST21). Further, as shown in FIG. 9A, the user selects one point different from the above on the touch panel 16 (UST22). By this second contact, the coordinates of the contact point are sent to the control unit 24 of FIG. 3, and the control unit 24 sets this as the start point P (coordinates) (ST22).

  Subsequently, the control unit 24 sets a line segment OP between the rotation center O of the screen by the first contact and the contact point P by the second contact at the coordinates on the touch panel 16 (ST23). (FIG. 9A).

  On the other hand, the user moves the pen on the touch panel 16 while holding the contact after touching the point P (UST23). Here, the control unit 24 starts timing from the user operation of the UST 22 by the built-in timer T. Then, when an elapsed time of, for example, 0.3 seconds is counted as the predetermined unit time Δt, the coordinates of the contact point such as a pen at that time are acquired from the coordinate input means 16, and the point P1 is set (ST24) ( FIG. 9B). Subsequently, the control unit 24 sets a line segment OP1 (ST25), and obtains an angle Δθ formed by the line segment OP and the line segment OP1 (ST26).

Next, the control unit 24 calculates a coordinate value obtained by rotating the screen D <b> 2-1 shown in FIG. 4 on the coordinates by the angle Δθ, and sends it to the display control unit 22. The display control unit 22 sets a new screen D2-1 with the coordinates after rotational movement sent from the control unit 24 within the range of the screen information D1 shown in FIG. It is displayed on the display means 23 (ST27). Thus, the rotational movement of the display screen to perform repeated for each of the unit time Delta] t, which the user continues as long as contact with the coordinate input device 16.

Next, when the user stops touching the coordinate input device 16 with a pen or the like (UST24), the control unit 24 acquires the coordinate value of the point where the continuation of the input to the touch panel 16 or the like is completed, and sets the point Q. (ST29). Subsequently, the control unit 24 sets a line segment OQ (ST30), and obtains an angle θ formed by the line segment OP and the line segment OQ (ST31). Here, the control unit 24 integrates the unit angle Δθ calculated for each unit time Δt, compares the angle θ with the angle θ, calculates the shift amount, and rotates the current display screen by the shift amount. Also good.

  Alternatively, the control unit 24 obtains a coordinate value obtained by rotating the screen D2-1 shown in FIG. 4 by the angle θ with respect to the state before starting the rotational movement of the screen, that is, the line segment OP in ST23. It may be calculated and sent to the display control unit 22. The display control unit 22 sets a new screen D2-1 with the coordinates after rotational movement sent from the control unit 24 within the range of the screen information D1 shown in FIG. It is displayed on the display means 23 (ST32). As a result, the rotational movement of the display screen ends (ST33), and a standby state is again prepared for a new instruction.

  Therefore, in the third embodiment of the screen movement method, unlike the first and second embodiments, the control unit 24 instructs the screen to be rewritten every unit time Δt, and the screen is moved every unit time. Perform rotational movement. For this reason, in 3rd Embodiment, all the effects which 1st Embodiment show | plays can be exhibited, In addition to this, in the state which the user made the pen etc. contact the coordinate input device 16, When this is moved, the screen is displaced and rotated every unit time Δt so as to follow the movement. For this reason, the user can work while visually observing how the user's instructions are executed one after another, the result of the rotational movement of the screen is easy to predict, the operability is improved, and the rotation angle of the screen etc. However, it is possible to make it easier to obtain the result desired by the user.

  The present invention is not limited to the above-described embodiment. Needless to say, the electronic device of the present invention is not limited to the portable navigation device as described above, but can be applied to a non-portable embodiment. Further, the rotational movement control device for the screen can be widely incorporated not only in the navigation device but also in various information devices such as a computer device provided with a screen or image display means, all of which are within the scope of the present invention.

  Further, the screen movement control device may be provided with a scroll function of not only rotational movement but also parallel movement in an arbitrary direction.

It is a schematic perspective view which shows the structural example of the electronic device incorporating the screen movement control apparatus by this invention. FIG. 2 is a schematic exploded perspective view of the electronic device of FIG. 1. It is a block diagram which shows the structure of the movement control apparatus of the display screen integrated in the electronic device of FIG. It is a figure for demonstrating the screen data which the memory | storage part 21 of the movement control apparatus of the display screen of FIG. 3 acquires. 4 is a flowchart showing a first embodiment of a screen movement method by the screen movement control device of FIG. 3. It is explanatory drawing which shows the mode of the screen movement method by the screen movement control apparatus of FIG. It is a flowchart which shows 2nd Embodiment of the screen movement method by the movement control apparatus of the screen of FIG. It is a flowchart which shows 3rd Embodiment of the screen movement method by the movement control apparatus of the screen of FIG. It is explanatory drawing which shows the mode of the screen moving method which concerns on 3rd Embodiment by the screen movement control apparatus of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Electronic device (portable navigation apparatus), 11 ... Housing | casing, 12 ... Navigation apparatus main body, 14 ... Cover, 14 ... Case, 15 ... Display window, 16 ... Coordinate input device (touch panel), 17 ... Liquid crystal panel, 18 DESCRIPTION OF SYMBOLS ... Optical disk apparatus, 20 ... Display screen movement control device, 21 ... Storage section, 22 ... Display control section, 23 ... Screen display means, 24 ... Control section

Claims (10)

A touch panel that outputs contact state information indicating a contact state with the contact unit and coordinate information corresponding to a contact position of the contact unit;
A storage unit for storing map data ;
The contact state information indicating that the contact means has contacted from the touch panel and the coordinate information at that time when the contact means moves in an arc shape around a reference point set in advance on the map as a starting point A fan that receives the contact state information of the contact means and the coordinate information at that time as end point information from the touch panel every unit time , and forms the end point information from the start point information centered on the reference point. A control unit that calculates a rotation angle based on a shape figure and outputs rotation angle information ;
A display control unit that receives the rotation angle information from the control unit and forms display data obtained by rotating the map data of the storage unit at the rotation angle;
A screen display means for displaying the map data rotated output from the display control unit
A map display device comprising: The map display device according to claim 1, wherein the reference point is a point selected by the contact means . The portable map display device according to claim 1 , wherein the contact means is a touch pen. The portable map display device according to claim 1 , wherein the contact means is a fingertip. The portable map display device according to claim 1 , wherein the reference point is a center point of the screen display means. When the contact means draws an arc around the center of the touch panel, the first step of setting the coordinate information at the time of contact of the contact means on the touch panel as the starting point information of the arc;
When the contact means draws the arc around the center of the touch panel, the second step of setting the current coordinate information that the contact means is contacting from the touch panel as the end point information of the arc;
A third step of calculating an angle based on a fan-shaped figure formed by the starting point information and the current coordinate information from a preset reference point;
A fourth step of rotating the map image displayed on the display unit by the angle obtained in the third step from the reference point;
A map display method comprising: a fifth step in which the second step, the third step, and the fourth step are repeated every unit time .   The map display method according to claim 6, wherein the reference point is a point selected by the contact means. The map display method according to claim 6 , wherein the contact means is a touch pen. The map display method according to claim 6 , wherein the contact means is a fingertip. The map display method according to claim 6 , wherein the reference point is a center point of the display unit .

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