JP2013029374A - Information display apparatus, information display method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information display apparatus, an information display method and a program which enable a user to easily confirm connection and positional relation of roads and the like in all peripheral areas of a display screen.SOLUTION: An information display apparatus of the invention comprises: object map area setting means which detects three or more depressed coordinate positions depressed on a display screen of display means for displaying a map image by position detecting means, and sets an object map area based on each of the depressed coordinate positions when it is determined that each of the depressed coordinate positions has moved toward the same single coordinate position; compressed display area setting means which sets a compressed display area by reducing the object map area in a direction toward the same single coordinate position based on each of the depressed coordinate positions; compression display means which displays compressed map information of the object map area in the compressed display area; and surrounding map display means which displays, on an outside of the compressed display area, the map information obtained by moving surrounding map areas outside of the display screen into the display screen according to the reduction of the object map area.

Description

  The present invention relates to an information display device, an information display method, and a program for dividing and compressing an image based on a pressing operation on a display screen.

  In recent years, portable electronic devices such as mobile phones, PDAs (Personal Digital Assistants), electronic dictionaries, and music playback devices have become widespread. These portable electronic devices are equipped with a transmissive touch panel or the like that detects contact and a contact position on the front side of the display unit in order to reduce the size of the operation unit operated by the user. Those that allow operation input by touching are widely used.

  For example, in a state where two fingers are in contact with the display screen, each finger is moved by moving at least one finger so as to reduce the relative distance between the two fingers (hereinafter referred to as “pitch-in”). The boundary line B is set in a direction perpendicular to the finger movement direction so as to pass through the midpoint between the subsequent contact positions P1 and P2. And there exists a display apparatus comprised so that a display screen might be divided | segmented into 2 display areas along this boundary line B, and displayed (for example, refer patent document 1).

JP 2010-97473 A

  In the display device described in Patent Document 1 described above, when a display screen displaying a map is divided, roads and facilities along the boundary line B of each map area displayed on each divided screen are displayed. Can be known by operating and moving one of the map screens.

  However, there is a problem that the operation is complicated because it is necessary to move each screen in four directions in order to know the connection of the roads and the positional relationship over the entire periphery of each screen. In addition, when each map image is simply reduced, the map display around the current location is also displayed in a reduced size, and there is a problem that it is difficult to check the current location and the long distance portion in parallel.

  Therefore, the present invention has been made to solve the above-described problems, and information that allows the user to easily confirm the connection and positional relationship of roads and the like over the entire periphery of the display screen. It is an object to provide a display device, an information display method, and a program.

  In order to achieve the above object, an information display device according to claim 1 includes display means for displaying a map image, position detection means for detecting a pressed coordinate position pressed on a display screen of the display means, and the position detection. 3 or more pressed coordinate positions are detected by the means, and a moving direction determining means for determining whether or not each pressed coordinate position has moved toward the coordinate position of the same point, and 3 or more points by the position detecting means. If the pressed coordinate position is detected and it is determined that each pressed coordinate position has moved toward the coordinate position of the same point, target map area setting means for setting the target map area based on each pressed coordinate position And a compressed display area setting means for setting the compressed display area by reducing the target map area in a direction toward the coordinate position of the same point based on each pressed coordinate position, and within the compressed display area Compression display means for compressing and displaying the map information of the target map area, and map information obtained by moving the map area in the outer periphery of the display screen to the display screen in accordance with the reduction of the target map area outside the compressed display area And a surrounding map display means for displaying.

  An information display device according to claim 2 is the information display device according to claim 1, wherein current position acquisition means for acquiring a current position and whether or not the current position is a point in the target map area are determined. And when the current position is determined to be a point in the target map area, the compressed display means displays a predetermined range of map information including the current position in the compressed display area. It is characterized by doing.

  The information display device according to claim 3 is the information display device according to claim 1 or 2, wherein the peripheral map display means classifies the outside of the compressed display area into a plurality of screen sections. And boundary compression display means for compressing the map information of the map area at a predetermined distance from the boundary line between the screen sections and displaying the map information with a predetermined width at the boundary part between the screen sections.

  According to a fourth aspect of the present invention, there is provided the information display device according to any one of the first to third aspects, wherein a wide area display instruction is given to instruct the scale of the map image to be changed to a wide scale. A map obtained by changing the scale of the map image to a wide scale outside the compressed display area when a wide area display instruction is input via the input means. It is characterized by displaying information.

  According to a fifth aspect of the present invention, there is provided an information display method comprising: a position detecting step for detecting a pressed coordinate position pressed on a display screen of a display means for displaying a map image; and three or more pressed coordinate positions in the position detecting step. And a moving direction determining step for determining whether or not each pressed coordinate position has moved toward the coordinate position of the same point, and three or more pressed coordinates by the position detecting means in the moving direction determining step A target map area setting step for setting a target map area based on each pressed coordinate position when detecting the position and determining that each pressed coordinate position has moved toward the coordinate position of the same point; A compressed display area setting step for setting a compressed display area by reducing the target map area in a direction toward the coordinate position of the same point based on the respective pressed coordinate positions detected in the position detecting step; A compressed display step for compressing and displaying the map information of the target map region within the compressed display region set in the region setting step, and accompanying reduction of the target map region outside the compressed display region set in the compressed display region setting step And a peripheral map display step of displaying map information obtained by moving the map area in the outer peripheral portion of the display screen into the display screen.

  Furthermore, the program according to claim 6 includes a position detection step of detecting a pressed coordinate position pressed on a display screen of a display means for displaying a map image on a computer, and three or more pressed coordinates in the position detection step. A moving direction determining step for detecting a position and determining whether or not each pressed coordinate position has moved toward the coordinate position of the same point, and at least three points pressed by the position detecting means in the moving direction determining step When the coordinate position is detected and it is determined that each pressed coordinate position has moved toward the coordinate position of the same point, a target map area setting step for setting a target map area based on each pressed coordinate position; A compressed display area setting step for setting a compressed display area by reducing the target map area in a direction toward the coordinate position of the same point based on each pressed coordinate position detected in the position detecting step. A compressed display step for compressing and displaying the map information of the target map region in the compressed display region set in the compressed display region setting step, and the target map region outside the compressed display region set in the compressed display region setting step. This is a program for executing a peripheral map display step for displaying map information in which the map area in the outer peripheral portion of the display screen is moved into the display screen as the size of the display screen is reduced.

  In the information display device according to claim 1, the information display method according to claim 5, and the program according to claim 6, the user presses three or more points on the display screen with a finger or the like toward the same point on the screen. By moving, the map area in the outer peripheral portion of the display screen can be moved and displayed in the display screen as the target map area set based on each pressed coordinate position is reduced. Thereby, the user can confirm easily the connection and positional relationship of the road etc. over the perimeter of the peripheral part of a display screen.

  In the information display device according to claim 2, when the current position is a point in the target map area where the map information is compressed and displayed, the map information of a predetermined range including the current position is displayed in the compressed display area. . Thereby, the user can easily confirm the map around the current location and the map in the long distance portion in parallel.

  In the information display device according to claim 3, the outside of the compressed display area is divided into a plurality of screen sections, the map information of the map area at a predetermined distance from the boundary line between the screen sections is compressed, and the area between the screen sections is compressed. Is displayed with a predetermined width at the boundary of Thereby, it is possible to prevent the map from being displayed in duplicate in each screen section, and the user can easily check the map outside the compressed display area.

  Furthermore, in the information display device according to claim 4, the user inputs a wide area display instruction via the input unit, thereby displaying a map in which the scale of the map image is changed to the wide scale outside the compressed display area. In addition, it is possible to easily check the connection and positional relationship of roads and the like up to a far distance portion.

It is the block diagram which showed the navigation apparatus which concerns on a present Example. It is a main flowchart which shows the "compression display process" which compresses and displays the map image between the pressed coordinate positions pressed with three or more fingers. FIG. 3 is a sub-flowchart showing a sub-process of “drawing process in compressed display area” of FIG. 2. FIG. 3 is a sub-flowchart showing a sub-process of “drawing process outside compressed display area” of FIG. 2. It is a figure which shows an example of the setting of the compression display area of a map image. It is a figure which shows an example of the compression display corresponding to FIG. It is a figure which shows an example of the setting of the compression display area of a map image. It is a figure which shows an example of the compression display corresponding to FIG. It is a figure which shows an example of the setting of the compression display area of a map image. It is a figure which shows an example of the compression display corresponding to FIG. It is a figure which shows an example of the setting of the compression display area of the map image which concerns on another Example. It is a figure which shows an example of the compression display corresponding to FIG.

  Hereinafter, an information display device, an information display method, and a program according to the present invention will be described in detail with reference to the drawings based on an embodiment in which a navigation device is embodied.

[Schematic configuration of navigation device]
First, a schematic configuration of the navigation device according to the present embodiment will be described with reference to FIG. FIG. 1 is a block diagram showing a navigation device 1 according to the present embodiment.
As shown in FIG. 1, the navigation apparatus 1 according to the present embodiment includes a current location detection processing unit 11 that detects the current position of the host vehicle, a data recording unit 12 that records various data, and input information. On the basis of the navigation control unit 13 for performing various arithmetic processes, the operation unit 14 for receiving operations from the operator, the liquid crystal display 15 for displaying information such as a map to the operator, and voice regarding route guidance and the like. A communication device 17 that communicates between a speaker 16 that outputs guidance, a road traffic information center (not shown), a map information distribution center, and the like via a mobile phone network, etc., and a touch panel that is mounted on the surface of the liquid crystal display 15 18. The navigation control unit 13 is connected to a vehicle speed sensor 21 that detects the traveling speed of the vehicle.

  Hereinafter, each component constituting the navigation device 1 will be described. The current location detection processing unit 11 includes a GPS 31, a direction sensor 32, a distance sensor 33, and the like, and the current position of the own vehicle (hereinafter referred to as “own vehicle position”). )), It is possible to detect the direction of the vehicle, the travel distance, and the like indicating the direction of the vehicle.

  The data recording unit 12 reads out an external storage device and a hard disk (not shown) as a recording medium, a map information database (map information DB) 25 stored in the hard disk, a predetermined program, etc. And a driver (not shown) for writing data.

  The map information DB 25 stores navigation map information 26 used for travel guidance and route search of the navigation device 1. Here, the navigation map information 26 is composed of various information necessary for route guidance and map display. For example, new road information for specifying each new road, map display data for displaying a map, Search for intersection data related to intersections, node data related to node points, link data related to roads (links), search data for searching routes, facility data related to POI (Point of Interest) such as stores that are a type of facility, and points. Search data and the like.

In addition, as facility data, names, addresses, telephone numbers, and coordinate positions on maps (for example, hotels, amusement parks, palaces, hospitals, gas stations, parking lots, stations, airports, ferry platforms, etc.) The center position, the latitude and longitude of the entrance, exit, etc.), and data such as a facility icon for displaying the location of the facility on the map are stored together with the facility ID for specifying the POI.
The contents of the map information DB 25 are updated by downloading update information distributed from the map information distribution center (not shown) via the communication device 17.

  As shown in FIG. 1, the navigation control unit 13 constituting the navigation device 1 is a working device that controls the entire navigation device 1, the CPU 41 as the control device, and the CPU 41 performs various types of arithmetic processing. An internal storage device such as a RAM 42 that is used as a memory and stores route data when a route is searched, a ROM 43 that stores a control program, and a flash memory 44 that stores a program read from the ROM 43 In addition, a timer 45 for measuring time is provided.

In addition, the ROM 43 compresses and displays a map image while being pressed with each finger by moving the user, which will be described later, on the display screen of the liquid crystal display 15 so as to approach the display with three or more fingers. Programs such as “compressed display process” (see FIG. 3) are stored.
Furthermore, the navigation control unit 13 is electrically connected to peripheral devices (actuators) of the operation unit 14, the liquid crystal display 15, the speaker 16, the communication device 17, and the touch panel 18.

  This operation unit 14 is operated when correcting the current position at the start of traveling, inputting a departure point as a guidance start point and a destination as a guidance end point, or searching for information about facilities, etc. Key and a plurality of operation switches. The navigation control unit 13 performs control to execute various corresponding operations based on switch signals output by pressing the switches.

  Further, the liquid crystal display 15 displays map information (refer to FIG. 5 and the like) currently traveling, map information around the destination, operation guidance, operation menu, key guidance, recommended route from the current location to the destination, and recommended route. Guide information, traffic information, news, weather forecast, time, mail, TV program, etc. are displayed.

  In addition, the speaker 16 outputs voice guidance or the like for guiding traveling along the recommended route based on an instruction from the navigation control unit 13. Here, the voice guidance to be guided includes, for example, “200m ahead, turn right at XX intersection”.

  The communication device 17 is a communication means such as a mobile phone network that communicates with the map information distribution center, and transmits / receives the latest version of updated map information and the like to / from the map information distribution center. Further, in addition to the map information distribution center, the communication device 17 receives traffic information composed of information such as traffic congestion information transmitted from the road traffic information center and the like and congestion status of the service area.

  The touch panel 18 is a transparent panel-like touch switch mounted on the display screen of the liquid crystal display 15. Various instruction commands can be input by pressing buttons or a map displayed on the screen of the liquid crystal display 15. Or, as will be described later, when the pressing position is moved by pressing on the display screen with three or more fingers, detection of the moving direction and moving speed of each finger, and detection of the number of fingers pressed on the display screen It is possible to do the same. Note that the touch panel 18 may be configured by an optical sensor liquid crystal method or the like that directly presses the screen of the liquid crystal display 15.

[Compressed display processing]
Next, the process executed by the CPU 41 of the navigation device 1 configured as described above is performed by moving the user so as to approach the display screen of the liquid crystal display 15 with three or more fingers pressed. A “compression display process” for compressing and displaying a map image while being pressed with each finger will be described with reference to FIGS. 2 is executed by the CPU 41.

  As shown in FIG. 2, first, in step (hereinafter abbreviated as “S”) 11, the CPU 41 selects each pressed coordinate position (hereinafter referred to as “touch coordinates”) pressed by a finger of the touch panel 18 at predetermined time intervals. (For example, approximately every 10 milliseconds) and stored in the RAM 42 in time series in correspondence with each finger.

  Subsequently, in S12, when the pressing of the touch panel 18 with a finger is released, the CPU 41 determines that the touch coordinates (hereinafter referred to as “start touch coordinates”) at which each finger first pressed the display screen are three. A determination process is performed to determine whether or not the number of points has been reached, that is, whether or not the finger has been pressed with three or more fingers. And when it determines with a start touch coordinate being 2 points or less (S12: NO), CPU41 complete | finishes the said process.

  On the other hand, when it is determined that the start touch coordinates are three or more points, that is, when it is determined that the touch panel 18 is pressed with three or more fingers (S12: YES), the CPU 41 proceeds to the process of S13. . In S <b> 13, the CPU 41 reads out the touch coordinates of each finger from the RAM 42 in time series, calculates the moving direction of the touch coordinates of each finger on the display screen, and stores it in the RAM 42. Subsequently, the CPU 41 determines whether or not the movement directions of the touch coordinates of each finger on the display screen are toward the same point, that is, whether or not the movement directions of the touch coordinates of each finger are close to each other. Execute the process.

And when it determines with the moving direction of the touch coordinate of each finger | toe on a display screen not going to the same point (S13: NO), CPU41 complete | finishes the said process.
On the other hand, if it is determined that the movement direction of the touch coordinates of each finger on the display screen is toward the same point (S13: YES), the CPU 41 proceeds to the process of S14.

  In S <b> 14, the CPU 41 reads out the start touch coordinates of each finger from the RAM 42, calculates a rectangular map compression range (target map region) connecting the start touch coordinates, and compresses and displays a map image in the map compression range. Set as. Further, the CPU 41 reads out the touch coordinates immediately before the touch of the touch panel 18 by each finger (hereinafter referred to as “final touch coordinates”) from the RAM 42, calculates a rectangular display range connecting the final touch coordinates, The map image within the map compression range is set as a compressed display area for compressing and displaying the map image.

  For example, as shown in FIG. 5, the CPU 41 reads out the coordinates (X1, Y1), (X2, Y2), (X3, Y3) of the three start touch coordinates 51, 52, 53 from the RAM 42, From the coordinate maximum value X3 and minimum value X1, and the Y coordinate maximum value Y1 and minimum value Y2, each coordinate (X1, Y1), (X1, Y2), (X3, Y2), (X3, Y1) is obtained. A rectangular range to be connected is stored in the RAM 42 as a map compression range 55. Further, the CPU 41 sets the map image within the map compression range 55 as a target to be compressed and displayed. The lower left corner of the display screen is the origin (0, 0), the X axis is set in the horizontal direction, and the Y axis is set in the vertical direction.

  Further, the CPU 41 reads out the coordinates (X4, Y4), (X5, Y5), (X6, Y6) of the three final touch coordinates 56, 57, and 58 from the RAM 42, and the maximum X coordinate value X6 and the minimum value. From the value X4, the maximum value Y4 of the Y coordinate, and the minimum value Y5, a rectangular range connecting the coordinates (X4, Y4), (X4, Y5), (X6, Y5), (X6, Y4), The map image in the map compression range 55 is stored in the RAM 42 as a compressed display area 61 for compressing and displaying the map image.

  As shown in FIG. 2, in S <b> 15, the CPU 41 performs a sub-process (see FIG. 3) of a “drawing process in the compressed display area” to be described later, and then proceeds to S <b> 16. In S <b> 16, the CPU 41 terminates the processing after executing a sub-processing (see FIG. 4) of “drawing processing outside the compressed display area” described later.

[Drawing processing in the compressed display area]
Next, the sub-process of the “drawing process in the compressed display area” executed in S15 will be described with reference to FIGS. 3 and 5 to 8. FIG.
As shown in FIG. 3, in S <b> 111, the CPU 41 detects the vehicle position by the current location detection processing unit 11, and stores coordinate data (for example, latitude and longitude data) representing the vehicle position in the RAM 42. To do. And CPU41 performs the determination process which determines whether the own vehicle position is located in the map compression range set by said S14.

  And when it determines with the own vehicle position being located in the map compression range set by said S14 (S111: YES), CPU41 transfers to the process of S112. In S112, the CPU 41 sets a predetermined rectangular range centered on the vehicle position within the compression display area set in S14 (for example, a range of about 100 m square centered on the vehicle position). Set as the position surrounding display area. And CPU41 displays the map image of the said vehicle position periphery display area centering on the own vehicle position in the compression display area set by said S14, without compressing.

  Subsequently, in S113, the CPU 41 displays the map image sandwiched between the map compression range set in S14 and the vehicle position periphery display area, and the compressed display area set in S14 and the vehicle position periphery. Compressed display within the range sandwiched between the display area. Thereafter, the CPU 41 ends the sub-process, returns to the main flowchart, and proceeds to the process of S16.

  For example, as shown in FIG. 5, when the CPU 41 determines that the vehicle position is within the map compression range 55, the CPU 41 centers the vehicle position mark 62 indicating the vehicle position in the compression display area 61. A rectangular predetermined range (for example, a range of about 100 m square centered on the vehicle position) is set as the vehicle position periphery display area 63.

  Then, as shown in FIG. 6, the CPU 41 displays a map image within a predetermined range centered on the vehicle position mark 62 in the own vehicle position peripheral display area 63 set in the compression display area 61 without being compressed. In addition, the CPU 41 includes a map image sandwiched between the map compression range 55 and the vehicle position surrounding display area 62 and a range sandwiched between the compression display area 61 and the vehicle position surrounding display area 62. Compressed display inside.

  On the other hand, as shown in FIG. 3, when it is determined that the vehicle position is not located within the map compression range set in S14 (S111: NO), the CPU 41 proceeds to the process of S114. In S114, the CPU 41 compresses and displays the map image within the map compression range set in S14 in the compression display area. Thereafter, the CPU 41 ends the sub-process, returns to the main flowchart, and proceeds to the process of S16.

For example, as shown in FIG. 7, when the CPU 41 determines that the vehicle position is not located within the map compression range 55, that is, the vehicle position mark 62 indicating the vehicle position is within the map compression range 55. If it is not displayed in, the display area around the vehicle position is not set.
Then, as shown in FIG. 8, the CPU 41 compresses and displays the map image in the map compression range 55 in the compression display area 61.

[Drawing processing outside compressed display area]
Next, the sub-process of the “drawing process outside the compressed display area” executed in S16 will be described with reference to FIGS.
As shown in FIG. 4, in S211, the CPU 41 calculates the movement distance in the X direction or the Y direction of each side when each side of the map compression range is reduced to each side of the compression display area, and the map compression range The reduced information is stored in the RAM 42. Further, the CPU 41 reads the scale of the map image outside the map compression range from the navigation map information 26 and stores it in the RAM 42.

  Subsequently, in S212, the CPU 41 determines whether or not the scale of the map image to be displayed outside the compressed display area is set to the same scale, that is, whether or not the map image is set to be displayed at the same scale. Execute the judgment process. Specifically, the CPU 41 reads a reduction flag from the RAM 42 and determines whether or not this reduction flag is set to off.

  For example, as shown in FIG. 5, the CPU 41 displays a reduction button 65 on the display screen. As shown in FIG. 9, when the reduction button 65 is pressed, the CPU 41 determines that a wide area display instruction for instructing to reduce the scale to a one-step wide area has been input, and the reduction flag is read from the RAM 42. And the reduction flag is set to ON, and then stored in the RAM 42 again. When the navigation apparatus 1 is activated, the reduction flag is set to “of” and stored in the RAM 42.

  If it is determined that the scale of the map image displayed outside the compressed display area is set to the same magnification, that is, the reduction flag is set to OFF (S212: YES), the CPU 41 performs S213. Move on to processing. In S <b> 213, the CPU 41 reads map information outside the map compression range from the navigation map information 26 at the same scale and stores it in the RAM 42.

  Subsequently, in S214, the CPU 41 sets four lane markings that pass from the four corners of the map compression range to the four corners of the display screen, and the map images outside the map compression range are vertically trapped in the substantially trapezoidal shape by each lane marking. Divide into 4 sections.

  For example, as shown in FIGS. 5 and 7, the CPU 41 sets four partition lines 66 to 69 that pass from the four corners of the map compression range 55 to the four corners of the display screen, and maps the map image outside the map compression range 55. It is divided into four sections 71 to 74 having a substantially trapezoidal shape. The lane markings 66 to 69 are not displayed on the map image.

Then, as shown in FIG. 4, in S215, the CPU 41 reads out the map compression range reduction information stored in S211 from the RAM 42, and displays the map images of the upper, lower, left, and right four sections on the opposite sides of the compressed display area. Move to the position in the X direction or Y direction, respectively.
Thereafter, in S216, the CPU 41 sets four boundary lines that pass from the four corners of the compressed display area to the four corners of the display screen.

  Subsequently, in S217, the CPU 41 maps the map image of the map area outside the boundary lines of the upper, lower, left and right four sections respectively moved to the opposing sides of the compressed display area, and inside a predetermined distance from each boundary line (for example, The map image of the map area of about 50 m inside) is compressed and displayed on each boundary compression display area set on both sides of each boundary line at a predetermined distance from each boundary line. Accordingly, the map image is compressed and displayed on the linear boundary portion constituted by the boundary portion compressed display areas sandwiching the boundary lines between the sections. Thereafter, the CPU 41 ends the sub-process, returns to the main flowchart, and ends the process.

  For example, as shown in FIGS. 6 and 8, the CPU 41 sets four boundary lines 76 to 79 that pass from the four corners of the compressed display area 61 to the four corners of the display screen. Then, the CPU 41 maps the map image of the map area outside the boundary lines 76 and 79 of the section 71 and the map area inside the predetermined distance from the boundary lines 76 and 79 (for example, approximately 50 m inside). The image is compressed and displayed in the boundary compression display areas 71A and 71B set inside the boundary lines 76 and 79 with the width of the predetermined distance. Each boundary line 76 to 79 is not displayed on the map image.

  Similarly, the map image of the map area outside the boundary lines 76 to 79 of the sections 72 to 74 and the map area inside the predetermined distance from the boundary lines 76 to 79 (for example, about 50 m inside). The map image is compressed and displayed in the boundary compression display areas 72A, 72B, 73A, 73B, 74A, and 74B set inside the boundary lines 76 to 79 with the width of the predetermined distance.

  Therefore, a linear boundary portion 71A constituted by the boundary portion compressed display areas 71A, 71B, 72A, 72B, 73A, 73B, 74A, 74B sandwiching the boundary lines 76-79 between the sections 71-74, The map image is compressed and displayed at 72B, boundary portions 72A and 73B, boundary portions 73A and 74B, and boundary portions 74A and 71B.

On the other hand, as shown in FIG. 4, when it is determined in S212 that the scale of the map image displayed outside the compression display area is not set to the same size, that is, the reduction flag is set to ON. (S212: NO), CPU41 transfers to the process of S218.
In S218, the CPU 41 reads from the navigation map information 26 one-step wide area map information centered on the intersection of the diagonal lines of the compressed display area.

In S219, the CPU 41 displays the center of the one-step wide area map information outside the compressed display area in accordance with the intersection of the diagonal lines of the compressed display area.
Subsequently, in S220, the CPU 41 reads the reduction flag from the RAM 42, sets the reduction flag to OFF, and then stores it again in the RAM 42. Thereafter, the CPU 41 ends the sub-process, returns to the main flowchart, and ends the process.

  For example, as shown in FIG. 9, after the user presses the reduction button 65 with the finger 81, the user touches the start touch coordinates 51 to 53 with three fingers and moves to the final touch coordinates 56 to 58. In that case, the reduction flag is set on. For this reason, the CPU 41 determines that the scale of the map image displayed outside the compressed display area 61 is not set to the same magnification.

  Then, as shown in FIG. 10, the CPU 41 reads from the navigation map information 26 one-step wide-area map information 83 centered on the intersection 82 of the diagonal line of the compressed display area 61. Then, the CPU 41 displays the center of the one-step wide-area map information 83 on the outer side of the compressed display area 61 in accordance with the diagonal intersection 82 of the compressed display area 61. Further, the CPU 41 displays a vehicle position mark 62 indicating the own vehicle position on the map image of the map information 83 in the one-step wide area.

  As described above in detail, in the navigation device 1 according to the present embodiment, the user presses three or more points on the display screen with a finger or the like and moves them toward the same point on the screen, thereby each start touch coordinate. The map image of the rectangular map compression range connecting the two can be compressed and displayed in the rectangular compression display area connecting the final touch coordinates. Further, along with the compression display of the map image of the rectangular map compression range in the compression display area, the map area in the outer periphery of the display screen can be moved and displayed in the display screen. Thereby, the user can confirm easily the connection and positional relationship of the road etc. over the perimeter of the peripheral part of a display screen.

  Further, when the vehicle position is a point within the map compression range, the CPU 41 does not compress the map image in the vehicle position periphery display area within a predetermined range centered on the vehicle position in the compression display area. indicate. Thereby, the user can easily confirm the map around the current location and the map in the long distance portion in parallel.

  In addition, the CPU 41 divides the outside of the compressed display area into four sections on the top, bottom, left, and right by four boundary lines passing from the four corners of the compressed display area to the four corners of the display screen, and each boundary portion sandwiching the boundary lines between the sections. A map image is compressed and displayed at a linear boundary portion constituted by the compressed display area. Thereby, it is possible to prevent the map from being displayed in duplicate in each section, and the user can easily check the map outside the compressed display area.

  Further, the user presses the reduction button 65 displayed on the display screen and inputs a wide area display instruction, thereby displaying a map in which the scale of the map image is changed to a one-step wide scale outside the compressed display area. It is possible to easily confirm the connection and positional relationship of roads and the like up to a far distance portion.

  In addition, this invention is not limited to the said Example, Of course, various improvement and deformation | transformation are possible within the range which does not deviate from the summary of this invention. For example, the following may be used.

  (A) For example, as shown in FIG. 11, the CPU 41 may set an elliptical or circular map compression range 95 connecting the start touch coordinates 91 to 93 in S <b> 14. Alternatively, an elliptical or circular compressed display area 101 connecting the final touch coordinates 96 to 98 may be set. In S112, the CPU 41 sets a predetermined range around the vehicle position mark 62 indicating the vehicle position in the compression display area 101 as the oval or circular vehicle position periphery display area 103. Also good.

  In S214, the CPU 41 sets four partition lines 105 to 108 that pass through the center of the map compression range 95 and pass from the outer periphery of the map compression range 95 to the four corners of the display screen. Thus, the map image outside the map compression range 95 may be divided into four substantially trapezoidal upper, lower, left and right sections 111 to 114. In S <b> 215, the CPU 41 may move the upper, lower, left, and right four sections 111 to 114 to the outer periphery of the compressed display area 101 in the X direction or the Y direction, respectively.

  Subsequently, as shown in FIG. 12, in S <b> 216, the CPU 41 sets four boundary lines 116 to 119 that pass through the center of the compressed display area 101 and pass from the outer periphery of the compressed display area 101 to the four corners of the display screen. You may make it do.

  Then, a map image of a map area outside each boundary line 116 to 119 of each section 111 to 114 and a map of a map area inside the predetermined distance from each boundary line 116 to 119 (for example, about 50 m inside). The image may be compressed and displayed in the boundary compression display areas 111A, 111B, 112A, 112B, 113A, 113B, 114A, and 114B set inside the boundary lines 116 to 119 with the width of the predetermined distance. Good.

Therefore, a linear boundary portion 111A constituted by the boundary portion compressed display areas 111A, 111B, 112A, 112B, 113A, 113B, 114A, and 114B sandwiching the boundary lines 116 to 119 between the sections 111 to 114, The map image is compressed and displayed at 112B, boundary portions 112A and 113B, boundary portions 113A and 114B, and boundary portions 114A and 111B. Thereby, it is possible to prevent the maps from being displayed in duplicate in each of the sections 111 to 114, and the user can easily check the map outside the compressed display area 101.
(B) Also, for example, in FIG. 5, FIG. 7, FIG. 9, and FIG. 11, the user presses four or more locations on the display screen to move the respective touch coordinates toward the same point on the display screen. It may be.

1 navigation device 15 liquid crystal display 18 touch panel 25 map information DB
26 Navi Map Information 41 CPU
42 RAM
43 ROM
51, 52, 53, 91, 92, 93 Start touch coordinates 55, 95 Map compression range 56, 57, 58, 96, 97, 98 Final touch coordinates 61, 101 Compression display area 62 Vehicle position mark 63, 103 Own vehicle position Peripheral display area 65 Reduction button 66-69, 105-108 Partition line 71-74, 111-114 Partition 76-79, 116-119 Border 71A, 71B, 72A, 72B, 73A, 73B Border compression display region 74A, 74B, 111A, 111B, 112A Boundary compression display area 112B, 113A, 113B, 114A, 114B Boundary compression display area

Claims (6)

Display means for displaying a map image;
Position detecting means for detecting a pressed coordinate position pressed on the display screen of the display means;
A moving direction determining means for detecting three or more pressed coordinate positions by the position detecting means and determining whether or not each pressed coordinate position has moved toward the coordinate position of the same point;
If the position detection means detects three or more pressed coordinate positions and determines that each pressed coordinate position has moved toward the coordinate position of the same point, the target map area is based on each pressed coordinate position. Target map area setting means for setting
Compressed display area setting means for setting the compressed display area by reducing the target map area in a direction toward the coordinate position of the same point based on each pressed coordinate position;
Compressed display means for compressing and displaying map information of the target map area in the compressed display area;
A surrounding map display means for displaying map information obtained by moving the map area in the outer periphery of the display screen into the display screen in accordance with the reduction of the target map area outside the compressed display area;
An information display device comprising: Current position acquisition means for acquiring the current position;
Current location determination means for determining whether the current location is a point in the target map area;
If it is determined that the current position is a point in the target map area, the compressed display means displays a predetermined range of map information including the current position in the compressed display area. The information display device according to claim 1. The surrounding map display means includes
Sorting means for dividing the outside of the compressed display area into a plurality of screen sections;
Boundary compression display means for compressing map information of a map area at a predetermined distance from a boundary line between the screen sections and displaying the map information at a predetermined width on a boundary portion between the screen sections;
The information display device according to claim 1, further comprising: Input means for inputting a wide area display instruction for instructing to change the scale of the map image to a wide scale;
When a wide area display instruction is input via the input means, the surrounding map display means displays map information obtained by changing the scale of the map image to a wide scale outside the compressed display area. The information display device according to any one of claims 1 to 3. A position detection step of detecting a pressed coordinate position pressed on a display screen of a display means for displaying a map image;
A moving direction determining step of detecting three or more pressed coordinate positions in the position detecting step and determining whether or not each pressed coordinate position has moved toward the coordinate position of the same point;
When the position detecting means detects three or more pressed coordinate positions in the movement direction determining step and determines that each pressed coordinate position has moved toward the coordinate position of the same point, each pressed coordinate position A target map area setting step for setting a target map area based on
A compressed display region setting step for setting a compressed display region by reducing the target map region in a direction toward the coordinate position of the same point based on the respective pressed coordinate positions detected in the position detecting step;
A compressed display step of compressing and displaying the map information of the target map region in the compressed display region set in the compressed display region setting step;
A peripheral map display step for displaying map information in which the map region in the outer peripheral portion of the display screen is moved into the display screen as the target map region is reduced outside the compressed display region set in the compressed display region setting step; ,
An information display method characterized by comprising: On the computer,
A position detection step of detecting a pressed coordinate position pressed on a display screen of a display means for displaying a map image;
A moving direction determining step of detecting three or more pressed coordinate positions in the position detecting step and determining whether or not each pressed coordinate position has moved toward the coordinate position of the same point;
When the position detecting means detects three or more pressed coordinate positions in the movement direction determining step and determines that each pressed coordinate position has moved toward the coordinate position of the same point, each pressed coordinate position A target map area setting step for setting a target map area based on
A compressed display region setting step for setting a compressed display region by reducing the target map region in a direction toward the coordinate position of the same point based on the respective pressed coordinate positions detected in the position detecting step;
A compressed display step of compressing and displaying the map information of the target map region in the compressed display region set in the compressed display region setting step;
A peripheral map display step for displaying map information in which the map region in the outer peripheral portion of the display screen is moved into the display screen as the target map region is reduced outside the compressed display region set in the compressed display region setting step; ,
A program for running

Images