JP2012113096A - Map display device, map display method and computer program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a map display device that allows a user to correctly specify a specific point or area on a map image displayed on the display device by touching a touch panel, and to provide a map display method and a computer program.SOLUTION: A map image 61 of an area surrounding a vehicle is displayed on a liquid crystal display 15. When one touch coordinate is detected on a touch panel 14, the map image 61 is scrolled on the basis of a change of the touch coordinate. When two or more touch coordinates are detected on the touch panel 14, an area to be displayed in the map image 61 is fixed on the liquid crystal display 15 and an object superimposed on the map image 61 is edited on the basis of the change of at least one of the touch coordinates.

Description

  The present invention relates to a map display device that displays a map image on a display device, a map display method, and a computer program.

  Conventionally, in-vehicle navigation devices, portable information devices such as PDAs (Personal Digital Assistants) and mobile phones, personal computers, and the like, roads and facility names such as general roads and expressways are stored in various storage devices as map data. Alternatively, by downloading from a server or the like, it is possible to display a map image of a desired area on the display device for the user. In the navigation device or the like, a touch panel disposed on the front surface of the display device is used as a means for receiving a user operation.

  Here, when the user grasps the road shape and facility information around the vehicle, it is necessary to display a map image of an appropriate region on the display device. Therefore, for example, in Japanese Patent Laid-Open No. 2000-163031, a map image is displayed on a display device, a touch panel is disposed on the front surface of the display device, and the map image is rotated and enlarged based on a user's touch operation on the touch panel. A technique for performing reduction and scroll display is described.

JP 2000-163031 A (page 6, page 7, FIGS. 5 to 9)

  Here, in the navigation device or the like, in addition to the above-described rotation, enlargement, reduction, scroll display of the map image, there is a case where an editing process is performed on the object displayed superimposed on the map image. For example, when deleting a POI icon (such as a mark or name indicating a location) that identifies the location or genre of a facility (parking lot, gas station, restaurant, convenience store, etc.) displayed on a map image There is. Here, when performing an editing process on an object such as the POI icon, it is necessary for the user to perform a complicated setting operation. For example, when deleting a POI icon, it is necessary to call a setting screen and perform an operation of separately specifying the genre and position of the POI icon to be deleted.

  The present invention has been made in order to solve the above-described problems, and a map display device capable of easily performing editing processing on an object displayed superimposed on a map image on the map image. An object of the present invention is to provide a map display method and a computer program.

In order to achieve the object, a map display device (1) according to claim 1 of the present application includes a map image display means (52) for displaying a map image (61) on a display device (15), and the map image. Object display means (56) that superimposes and displays the object on the display device, a touch panel (14) that is disposed in the display area of the display device and receives a user's touch operation, and the user touches the touch panel In the state in which the touch coordinates are obtained by the coordinate acquisition means (53) that acquires the touch coordinates that are the coordinates of the point touched by the user, and the coordinate acquisition means acquires the touch coordinates of one point. Scroll display means (54) for scroll-displaying the map image on the display device based on the displacement of the display, and the coordinate acquisition means for two or more points of the tag. In the state of acquiring the h-coordinates, the display object area of the map image is fixed on the display device, and the target object displayed superimposed on the map image based on the displacement of the touch coordinates of at least one point And a map image processing means (55) for executing an editing process for.
The “editing process for the object” includes deleting the object from the map image, moving the display position of the object while fixing the map image, newly drawing the object, and the like. .

  Further, the map display device (1) according to claim 2 is the map display device according to claim 1, wherein the map image processing means (55) is at least 2 acquired by the coordinate acquisition means (53). A processing target area (71) is set based on the touch coordinates of a point, and the target object in the processing target area is erased from the map image.

  Further, the map display device (1) according to claim 3 is the map display device according to claim 1 or 2, wherein the object (65) is a location of a facility on the map image (61). The map image processing means (55) is superimposed on the map image based on the displacement of the touch coordinates of at least one point acquired by the coordinate acquisition means (53). The displayed POI icon is selectively deleted from the map image.

  Further, the map display device (1) according to claim 4 is the map display device according to claim 3, wherein the map image processing means (55) is at least one acquired by the coordinate acquisition means (53). Based on the displacement of the touch coordinates of a point, the POI icon (65) displayed superimposed on the map image (61) is selectively deleted from the map image, and the deleted POI icon and The POI icon indicating the location of a facility belonging to the same genre is erased from the map image.

Further, the map display device (1) according to claim 5 is the map display device according to claim 3 or 4, wherein the route from the departure place to the destination is superimposed on the map image (61). Route display means (57) for displaying the map, the map image processing means (55) along the route among the POI icons displayed superimposed on the map image based on the displacement of the touch coordinates. The POI icon displayed on the screen is selectively deleted.
The “POI icon displayed along the route” may be a POI icon displayed overlapping the route or a POI icon displayed within a predetermined distance from the route.

  According to a sixth aspect of the present invention, there is provided a map display method for displaying a map image (61) on a display device (15), and displaying an object on the display device so as to be superimposed on the map image. Touch coordinates that are coordinates of a point touched by the user when the user touches the touch panel (14) that is arranged in the display area of the display device and receives a user's touch operation. A coordinate acquisition step of acquiring the touch image, and a scroll display step of scroll-displaying the map image on the display device based on a displacement of the touch coordinate in the state of acquiring the touch coordinates of one point by the coordinate acquisition step; In a state where two or more touch coordinates are acquired by the coordinate acquisition step, the display target area of the map image is displayed. And a map image processing step of executing an editing process on the object displayed superimposed on the map image based on a displacement of the touch coordinates of at least one point. It is characterized by.

  Furthermore, a computer program according to claim 7 is mounted on a computer and has a map image display function for displaying a map image (61) on a display device (15), and a target for the display device superimposed on the map image. Object display function for displaying an object, and coordinates of a point touched by the user when the user touches a touch panel (14) that is arranged in a display area of the display device and receives a user's touch operation A coordinate acquisition function for acquiring touch coordinates, and a scroll display for scroll-displaying the map image on the display device based on the displacement of the touch coordinates in a state in which the coordinate acquisition function acquires one touch coordinate. In the state of acquiring the touch coordinates of two or more points by the function and the coordinate acquisition function, A map image processing function for fixing a display target area in the display device and executing an editing process on the target object displayed superimposed on the map image based on displacement of the touch coordinates of at least one point; Is executed by a processor.

  According to the map display device of the first aspect having the above-described configuration, it is possible to easily perform an editing process on an object displayed superimposed on a map image on the map image. In addition, the display target area of the map image is fixed on the display device, and the editing process is performed on the target object superimposed and displayed on the map image with the display target area of the map image fixed on the display device. It becomes possible. Accordingly, when performing an editing process on an object displayed superimposed on a map image, an object to be edited among the objects on the map image displayed on the display device is touched by a user's touch operation on the touch panel. It becomes possible to specify correctly. Therefore, even when a plurality of objects are displayed close to each other, it is possible to easily perform an editing process on an arbitrary object.

  Further, according to the map display device of claim 2, among the objects on the map image displayed on the display device, when performing the editing process for deleting the object displayed superimposed on the map image, An object to be erased can be accurately designated by a user's touch operation on the touch panel. Therefore, even when a plurality of objects are displayed close to each other, it is possible to easily perform an erasing process on an arbitrary object.

  According to the map display device of claim 3, when performing the editing process for deleting the POI icon displayed superimposed on the map image, the POI icon on the map image displayed on the display device, It becomes possible to specify the POI icon to be erased accurately by the user's touch operation on the touch panel. Therefore, even when a plurality of POI icons are displayed close to each other, it is possible to easily perform an erasing process on an arbitrary POI icon. As a result, it is possible to edit the map image displayed on the display device so that the user can easily see it.

  According to the map display device of claim 4, when performing the editing process for deleting the POI icon displayed superimposed on the map image, among the POI icons on the map image displayed on the display device, It is possible to selectively delete the POI icons indicating facilities of the same genre. Therefore, even when POI icons indicating facilities of a plurality of genres are displayed close to each other, it is possible to easily perform selective erasure processing on POI icons indicating facilities of arbitrary genres. . As a result, it is possible to edit the map image displayed on the display device so that the user can easily see it.

  According to the map display device of claim 5, when performing the editing process for deleting the POI icon displayed superimposed on the map image, among the POI icons on the map image displayed on the display device, It is possible to selectively delete the POI icon along the route to the destination. Therefore, even when a plurality of POI icons are displayed along the route, it is possible to easily perform selective erasure processing on the POI icons along the route. As a result, the route to the destination displayed on the display device can be edited so that the user can easily see it.

  Further, according to the map display method of the sixth aspect, it is possible to easily perform an editing process on the object displayed superimposed on the map image on the map image. In addition, the display target area of the map image is fixed on the display device, and the editing process is performed on the target object superimposed and displayed on the map image with the display target area of the map image fixed on the display device. It becomes possible. Accordingly, when performing an editing process on an object displayed superimposed on a map image, an object to be edited among the objects on the map image displayed on the display device is touched by a user's touch operation on the touch panel. It becomes possible to specify correctly. Therefore, even when a plurality of objects are displayed close to each other, it is possible to easily perform an editing process on an arbitrary object.

  Furthermore, according to the computer program of the seventh aspect, it is possible to easily perform an editing process on the map image on the object displayed by being superimposed on the map image. In addition, the display target area of the map image is fixed on the display device, and the editing process is executed on the target object displayed superimposed on the map image in a state where the display target area of the map image is fixed on the display device. Is possible. Accordingly, when performing an editing process on an object displayed superimposed on a map image, an object to be edited among the objects on the map image displayed on the display device is touched by a user's touch operation on the touch panel. It becomes possible to specify correctly. Therefore, even when a plurality of objects are displayed close to each other, it is possible to easily perform an editing process on an arbitrary object.

It is the block diagram which showed the navigation apparatus which concerns on this embodiment. It is the figure which showed the various means which navigation ECU comprises. It is the figure which showed an example of the driving guidance screen displayed on a liquid crystal display during driving | running | working of a vehicle. It is a flowchart of the touch coordinate acquisition process program which concerns on this embodiment. It is the figure which showed the schematic diagram of a touch coordinate log | history cue | queue. It is a flowchart of the map image edit processing program which concerns on this embodiment. It is the figure which showed the detection aspect of the touch coordinate. It is the figure shown about the specific aspect of the rectangular area. It is the figure which showed the specific example of the edit process with respect to the target object superimposed and displayed on the map image in step. It is the figure which showed the specific example of the edit process with respect to the target object superimposed and displayed on the map image in step. It is the figure which showed the specific example of the edit process with respect to the target object superimposed and displayed on the map image in step. It is the figure which showed the specific example of the edit process with respect to the target object superimposed and displayed on the map image in step. It is the figure which showed the specific example of the edit process with respect to the target object superimposed and displayed on the map image in step.

  Hereinafter, a control device according to the present invention will be described in detail with reference to the drawings based on an embodiment in which the control device is embodied in a navigation device. First, a schematic configuration of the navigation device 1 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 this embodiment.

  As shown in FIG. 1, the navigation device 1 according to the present embodiment includes a current position detection unit 11 that detects a current position of a vehicle on which the navigation device 1 is mounted, a data recording unit 12 that records various data, Based on the input information, the navigation ECU 13 that performs various arithmetic processes, the touch panel 14 that receives operations from the user, the liquid crystal display 15 that displays a map around the vehicle to the user, and voice guidance regarding route guidance. A communication module 18 that performs communication with an information center such as a probe center or a VICS (registered trademark: Vehicle Information and Communication System) center; It is composed of

Below, each component which comprises the navigation apparatus 1 is demonstrated in order.
The current position detection unit 11 includes a GPS 21, a vehicle speed sensor 22, a steering sensor 23, a gyro sensor 24, and the like, and can detect the current vehicle position, direction, vehicle traveling speed, current time, and the like. . Here, in particular, the vehicle speed sensor 22 is a sensor for detecting a moving distance and a vehicle speed of the vehicle, generates a pulse according to the rotation of the driving wheel of the vehicle, and outputs a pulse signal to the navigation ECU 13. And navigation ECU13 calculates the rotational speed and moving distance of a driving wheel by counting the generated pulse. Note that the navigation device 1 does not have to include all of the above five types of sensors, and the navigation device 1 may include only one or more of these types of sensors.

  The data recording unit 12 is also a hard disk (not shown) as an external storage device and a recording medium, and a driver for reading the map information DB 31 and a predetermined program recorded on the hard disk and writing predetermined data on the hard disk And a recording head (not shown). The data recording unit 12 may be configured by a memory card, an optical disk such as a CD or a DVD, instead of the hard disk.

  Here, the map information DB 31 includes, for example, link data 32 relating to roads (links), node data 33 relating to node points, point data 34 relating to points such as facilities, map display data for displaying a map, and intersection data relating to each intersection. The storage means stores search data for searching for routes, search data for searching for points, and the like.

  On the other hand, the navigation ECU (Electronic Control Unit) 13 is an electronic control unit that controls the entire navigation device 1. The CPU 41 as an arithmetic device and a control device, and a working memory when the CPU 41 performs various arithmetic processes. In addition to the RAM 42 for storing route data when a route is searched, a control program, a touch coordinate acquisition processing program (see FIG. 4) described later, and a map image editing processing program (FIG. 6). And the like, and an internal storage device such as a flash memory 44 for storing a program read from the ROM 43. The navigation ECU 13 constitutes various means as the processing algorithm shown in FIG. For example, the guide route setting means 51 sets a guide route from the departure place to the destination. The map image display means 52 displays a map image on the liquid crystal display 15. When the user touches the touch panel 14, the coordinate acquisition unit 53 acquires touch coordinates that are coordinates of a point touched by the user. The scroll display unit 54 scrolls and displays the map image on the liquid crystal display 15 based on the displacement of the touch coordinates in a state where the coordinate acquisition unit 53 acquires the touch coordinates of one point. The map image processing means 55 fixes the display target area of the map image on the liquid crystal display 15 in a state where the coordinate acquisition means 53 acquires two or more touch coordinates, and based on at least one displacement of the touch coordinates. Then, an editing process is executed on the object displayed superimposed on the map image. The object display means 56 superimposes on the map image and displays an object such as a POI icon on the liquid crystal display 15. The route display means 57 superimposes on the map image and is set by the guide route setting means 51. The guide route from to the destination is displayed.

  The touch panel 14 is disposed in front of the display area of the liquid crystal display 15, and is operated when scrolling the map image or selecting a button disposed in the display area. In particular, in the navigation device 1 according to the present embodiment, the navigation device 1 is also operated when performing an editing process on an object displayed superimposed on a map image. Then, the navigation ECU 13 performs “touch-on” in which the user touches the touch panel 14 from a state in which the user does not touch the touch panel 14 based on a detection signal output from the touch panel 14 by the operation of the touch panel 14, Detects “touch-off” that shifts from a touched state to a non-touched state. In addition, an operation of moving the touch position (ie, a drag operation or a flick operation) while a selection target such as a map coordinate, an enlarged view of an intersection, or a button is selected, which is the coordinate of the point touched by the user. ) Is also detected when touch coordinates are received. Then, the navigation ECU 13 performs control to execute various operations corresponding to the detected touch operation, touch coordinates, and the like.

  The liquid crystal display 15 also includes a map image including a road network, POI icons, traffic information, operation guidance, operation menus, key guidance, a guidance route from the current position to the destination, guidance information along the guidance route, news , Weather forecast, time, mail, TV program, etc. are displayed. Here, FIG. 3 is a diagram showing an example of a travel guidance screen 60 displayed on the liquid crystal display 15 while the vehicle is traveling.

  As shown in FIG. 3, the driving guidance screen 60 displayed on the liquid crystal display 15 includes a map image 61 around the current position of the vehicle, a vehicle position mark 62 indicating the current position of the vehicle matched on the map, A center cursor 63 for specifying the center position of the map display area, a guide route set in the navigation device 1 (displayed only when a guide route is set) 64, and a facility (parking lot, gas station) , A restaurant, a convenience store, etc.) and a POI icon 65 indicating the position and genre, and various buttons 66 to 70 for selecting the navigation device 1 to execute a predetermined function are displayed. The POI icon 65 is formed from marks indicating points such as a parking lot, a gas station, a restaurant, and a convenience store, and is displayed at the coordinates where the point is located. The user can grasp facility information around the current vehicle, road shape (including a guidance route when a guidance route is set), and the like by referring to the travel guidance screen 60. When the detail button 66 is touched on and selected, the scale of the map can be changed to a larger scale. When the display change button 67 is touched on and selected, the display mode (bird's-eye view, plan view, nose-up, north-up, etc.) of the map image 61 can be changed. When the destination set button 68 is touched on and selected, the point indicated by the center cursor 63 can be set as the destination. When the location registration button 69 is touched on and selected, the location indicated by the central cursor 63 can be registered in the navigation device 1 as a registration location. Further, when the wide area button 70 is touched on and selected, the scale of the map can be changed to a smaller scale.

  In addition, when the travel guide screen 60 is displayed, the user may desire to grasp the facility or road shape outside the area displayed on the travel guide screen 60. In that case, it is possible to change the scale of the map to a smaller scale, but it is also possible to scroll the map image. Here, in the process of scrolling the map image, when an operation of selecting a map image and dragging in a predetermined direction or an operation of flicking is accepted, the map image is displayed according to the accepted dragging operation or flicking operation. There is a process to scroll. In addition, a one-touch scroll process for scrolling the map image so that the touch coordinates touched by the user are centered, and a direction and speed based on the touched area when the user touches a predetermined area of the touch panel 14 for a predetermined time or more. There is also a continuous scroll process for continuously scrolling the map image. The user can change the display target area of the map image 61 by performing an image rotation operation or the like in addition to the scale change operation and scroll display operation of the map image 61 described above.

  Further, in the navigation device 1 according to the present embodiment, when the travel guidance screen 60 is displayed, the user performs a predetermined operation using the touch panel 14 so as to be superimposed on the map image 61 as described later. It is possible to perform an editing process on the displayed object. Here, as the editing process for the object displayed superimposed on the map image 61, specifically, the POI icon 65 is selectively deleted, the guide route set in the navigation device 1 is changed, the map image 61 is displayed. This applies to the drawing of a line.

  The speaker 16 outputs voice guidance for guiding traveling along the guidance route based on an instruction from the navigation ECU 13 and traffic information guidance. It is also used when outputting information related to the found facility when the facility search is performed.

  The DVD drive 17 is a drive that can read data recorded on a recording medium such as a DVD or a CD. Based on the read data, music and video are reproduced, the map information DB 31 is updated, and the like.

  The communication module 18 is a communication device for receiving traffic information composed of information such as traffic jam information, regulation information, and traffic accident information transmitted from a traffic information center, for example, a VICS center or a probe center. For example, a mobile phone or DCM is applicable.

  Next, a touch coordinate acquisition processing program executed by the navigation ECU 13 in the navigation device 1 having the above configuration will be described with reference to FIG. FIG. 4 is a flowchart of the touch coordinate acquisition processing program according to this embodiment. Here, the touch coordinate acquisition processing program is repeatedly executed at predetermined intervals (for example, every 200 ms) after the ACC of the vehicle is turned on, and is the coordinates of the touched point when the user touches the touch panel 14. This program acquires touch coordinates. The programs shown in the flowcharts of FIGS. 4 and 6 below are stored in the RAM 42 and the ROM 43 provided in the navigation device 1 and are executed by the CPU 41.

  First, in step (hereinafter abbreviated as S) 1 in the touch coordinate acquisition processing program, the CPU 41 acquires touch coordinates that are coordinates of a point where the user touches the touch panel 14 based on a detection signal transmitted from the touch panel 14. To do. For example, when the touch panel 14 is a resistive film type or a capacitance type, the touch coordinates are detected by detecting the position of the current that flows based on the pressure at the point touched by the user or the change in capacitance. To do.

  Next, in S2, the CPU 41 determines whether or not the touch coordinates have been acquired in the process of S1. In the state where the user is touching the touch panel 14 (particularly in the case of touching with a pressure of a predetermined value or more in the resistive film method), touch coordinates are acquired in S1.

  And when it determines with the touch coordinate having been acquired by the process of said S1 (S2: YES), it transfers to S3. On the other hand, when it is determined that the touch coordinates could not be acquired in the process of S1 (S2: NO), the touch coordinate acquisition process program is terminated without storing the touch coordinates.

  In S <b> 3, the CPU 41 stores the touch coordinates acquired in the process of S <b> 1 in a touch coordinate history queue provided in the RAM 42. The touch coordinate history queue is configured to store touch coordinate data for a predetermined number of times (for example, four times) immediately before. Here, FIG. 5 is a schematic diagram of the touch coordinate history queue. As shown in FIG. 5, the touch coordinates A, B, C, and D data are stored in the touch coordinate history queue in order from the oldest data as the previous four touch coordinates data, and the touch coordinates E are newly added. Is acquired, the touch coordinate A data acquired at the oldest timing is deleted, and the touch coordinate E data is newly stored in the touch coordinate history queue. The touch coordinate history queue is initialized when touch-off is confirmed or when a new selection object is selected based on touch-on. Thereafter, the touch coordinate acquisition processing program ends.

  Then, the CPU 41 executes various processes based on the touch coordinates stored in the touch coordinate history queue in S3. For example, the selection processing of various buttons 66 to 70 displayed on the liquid crystal display 15, the scroll processing of the map image 61, the scale change processing of the map image 61, and the editing processing on the object displayed superimposed on the map image 61 are performed. Map image editing processing (FIG. 6) is performed.

  Next, a map image editing process program executed by the navigation ECU 13 in the navigation device 1 having the above configuration will be described with reference to FIG. FIG. 6 is a flowchart of the map image editing processing program according to this embodiment. Here, the map image editing processing program is executed after the ACC of the vehicle is turned on, and displays the travel guide screen 60 including the map image on the liquid crystal display 15 and also displays the map image 61 based on the operation of the touch panel 14. This is a program for performing an editing process on an object displayed in a superimposed manner. Note that the program shown in the flowchart of FIG. 6 below is stored in the RAM 42 or ROM 43 provided in the navigation apparatus 1 and is executed by the CPU 41.

  First, in the map image editing program, in S11, the CPU 41 displays a travel guidance screen 60 (FIG. 3) on the liquid crystal display 15. In addition to the map image 61 around the current position of the vehicle as described above, the POI icon 65 is also superimposed on the map image 61 and displayed on the travel guidance screen 60. Specifically, in S <b> 11, the CPU 41 displays an area to be displayed (hereinafter, a display target) based on the current position and direction of the vehicle detected by the current position detection unit 11 and the map scale set in the navigation device 1. Map data (referred to as a target area) is read from the map information DB 31 and a map image 61 based on the read map data is drawn on the liquid crystal display 15. Similarly, the spot data 34 included in the display target area is read from the map information DB 31, and the POI icon 65 is drawn based on the read spot data 34. When the current position of the vehicle changes, the display target area of the drawn map data is also changed with the change in the position of the vehicle.

  Next, in S12, the CPU 41 determines whether or not at least one touch coordinate is detected on the touch panel 14 based on the detection signal transmitted from the touch panel 14, that is, the user touches at least one point on the touch panel 14. Determine whether or not. Specifically, as shown in FIG. 7, in the coordinate acquisition processing program (FIG. 4) executed at a predetermined interval as described above, coordinates can be acquired by the processing in the previously executed program, and touch coordinates are stored in the touch coordinate history queue. Is stored (S3), it is determined that at least one touch coordinate has been detected.

  If it is determined that at least one touch coordinate is detected on the touch panel 14 (S12: YES), that is, if it is determined that the user is touching at least one point on the touch panel 14, the process proceeds to S13. And migrate. On the other hand, when it is determined that no touch coordinates are detected on the touch panel 14 (S12: NO), that is, when it is determined that the user does not touch the touch panel 14, the map image is displayed. The edit processing program is terminated.

  In S13, the CPU 41 detects whether or not two or more touch coordinates are detected on the touch panel 14 based on the detection signal transmitted from the touch panel 14, that is, whether or not the user touches at least two points on the touch panel 14 at the same time. To determine.

  When it is determined that two or more touch coordinates are detected on the touch panel 14 (S13: YES), that is, when it is determined that the user is touching at least two points on the touch panel 14 at the same time, S15 is performed. Migrate to On the other hand, when it is determined that two or more touch coordinates are not detected on the touch panel 14 (S13: NO), that is, when it is determined that the user touches only one point on the touch panel 14. To S14.

  In S <b> 14, the CPU 41 performs various processes such as a scroll process based on the detected touch coordinates of one point and the displacement of the touch coordinates. For example, when touch coordinates are detected on the detail button 66, processing for changing the scale of the map to a larger scale is performed. When touch coordinates are detected on the display change button 67, processing for changing the display mode (bird's-eye view, plan view, nose-up, north-up, etc.) of the map image 61 is performed. When touch coordinates are detected on the destination set button 68, processing for setting the point indicated by the center cursor 63 as the destination is performed. Further, when the touch coordinates are detected on the location registration button 69, processing for registering the location indicated by the central cursor 63 in the navigation device 1 as the registration location is performed. When touch coordinates are detected on the wide area button 70, processing for changing the scale of the map to a smaller scale is performed. When touch coordinates are detected on the map image 61, one-touch scroll processing or continuous scroll processing is performed based on the detected touch coordinates of one point. Further, when the touch coordinate is detected on the map image 61 and it is determined that the flick operation or the drag operation is received based on the detected displacement of the touch coordinate of one point, the touch operation is performed according to the received drag operation or flick operation. To scroll the map image.

  In S <b> 15, the CPU 41 fixes the display target area of the map image 61 on the liquid crystal display 15. Specifically, the CPU 41 performs a process of changing the display target area of the map image 61 such as a scroll process of the map image 61 (including a scroll process based on a change in the current position of the vehicle), a scale change process, and an image rotation process. If it has been interrupted, each process is stopped. Each process for changing the display target area of the map image 61 until it is determined that the touch coordinates of at least two points are not detected thereafter, regardless of the change in the current position of the vehicle and the received user operation. Is controlled so as not to be performed.

Next, in S <b> 16, the CPU 41 specifies a rectangular area that is a processing target area based on the detected at least two-point touch coordinates. Specifically, as shown in FIG. 8, when the user touches two points A and B on the touch panel 14 with the index finger 81 and the middle finger 82 respectively, the point A and the point B are connected. A rectangular area having a straight line as a diagonal line is a rectangular area 71 as a processing target area. When the coordinates of the point A are (X1, Y1) and the coordinates of the point B are (X2, Y2), the point C has the same Y coordinate as the point A and the same X coordinate as the point B. The coordinates of the point C are (X2, Y1). On the other hand, the point D is a point having the same X coordinate as the point A and the same Y coordinate as the point B, and the coordinates of the point D are (X1, Y2).
The method for specifying the rectangular area 71 is not limited to the above example. For example, when three or more touch coordinates are detected, a polygonal area surrounded by the detected touch coordinates of each point may be used as the rectangular area 71.

  Next, in S <b> 17, the CPU 41 performs an editing process on the target object displayed superimposed on the map image 61 based on the rectangular area 71 specified in S <b> 16 and the displacement of at least one touch coordinate thereafter.

Hereinafter, the editing process for the object displayed in a superimposed manner on the map image 61 in S17 will be described with specific examples (1) to (5).
(1) Basic Erase Processing for POI Icon 65 As shown in FIG. 9, the CPU 41 selectively erases the POI icon 65 located in the rectangular area 71. Further, for example, when the user moves the index finger 81 and the middle finger 82 as indicated by an arrow 83 and changes the touch position based on the index finger 81 and the middle finger 82, the user is identified based on the touch coordinates of the index finger 81 and the middle finger 82. Since the position of the rectangular area 71 to be changed is also changed, the POI icon 65 at an arbitrary position displayed on the map image 61 can be deleted. As a result, the unnecessary POI icon 65 can be deleted, and the map image 61 can be easily displayed to the user.
(2) Processing for Deleting Genre of POI Icon 65 As shown in FIG. 10, the CPU 41 selectively deletes the POI icon 65 located in the rectangular area 71 specified based on the touch coordinates of the index finger 81 and the middle finger 82. To do. The CPU 41 also deletes the POI icons 65 belonging to the same deleted genre. For example, in the example shown in FIG. 10, the POI icons 65 of “Restaurant” and “Bank” have been deleted, and therefore, the POI icons of “Restaurant” and “Bank” among the POI icons 65 displayed on the map image 61. All of 65 are deleted. As a result, the POI icon 65 of an unnecessary genre can be deleted, and the map image 61 can be displayed easily for the user. The editing process (2) may be executed only when at least three touch coordinates are detected, that is, when the user touches at least three points on the touch panel 14 at the same time.
(3) On-Route Erase Processing of POI Icon 65 As shown in FIG. 11, the CPU 41 selectively erases the POI icon 65 located in the rectangular area 71 specified based on the touch coordinates of the index finger 81 and the middle finger 82. To do. Further, when the deleted POI icon 65 is along the guide route set in the navigation device 1, the CPU 41 also deletes other POI icons 65 located along the guide route. For example, in the example shown in FIG. 11, the POI icon 65 of “parking lot” along the guide route 64 has been deleted, so that among the POI icons 65 displayed on the map image 61, there are others along the guide route 64. All the POI icons 65 are deleted. As a result, the POI icon 65 along the guide route can be deleted, and the guide route can be easily edited by the user. The process (3) may be executed when it is determined that the guide route is located in the rectangular area 71. The POI icon 65 located along the guide route may be a POI icon 65 displayed overlapping the guide route, or a POI icon 65 displayed within a predetermined distance (for example, within 500 m) from the guide route. .
(4) Line Drawing Process As shown in FIG. 12, the CPU 41 follows the coordinates where the upper left corner (point C in FIG. 6) of the rectangular area 71 specified based on the touch coordinates of the index finger 81 and the middle finger 82 has moved. The line 72 is drawn superimposed on the map image 61. Further, when the user changes the touch position, the position of the upper left corner of the rectangular area 71 is also changed accordingly, so that any symbol, character, figure, etc. can be drawn on the map image 61. Become. For example, in the example illustrated in FIG. 12, an arrow is drawn on the map image 61 using the line 72. As a result, the user's landmarks and memos can be freely left on the map image 61, and the map image 61 can be displayed in an easily understandable manner to the user. The drawing position of the line 72 may be a position other than the upper left corner of the rectangular area 71. For example, the center position of the rectangular area 71 may be used.
(5) Route Change Process As shown in FIG. 13, when the rectangular area 71 specified based on the touch coordinates of the index finger 81 and the middle finger 82 is positioned on the guide route, the CPU 41 moves the rectangular area 71 thereafter. Accordingly, the guide route 64 is changed. For example, in the example shown in FIG. 13, after the guide route 64 is positioned in the rectangular area 71, the rectangular area 71 is moved to the right. As a result, the guide route 64 is changed to a route that travels on a link located on the right side of the route that has been conventionally set. As a result, the guide route set in the navigation device 1 by a touch operation on the map image 61 can be easily changed to a route desired by the user.

In such editing processing, it is important to accurately specify a specific point or a specific area on the map image 61 displayed on the liquid crystal display 15. However, conventionally, when the display target area of the map image 61 displayed on the liquid crystal display 15 is changed by the user touching the touch panel 14, the identification on the map image displayed on the liquid crystal display 15 is specified. It is difficult to accurately specify a point or a specific area by a touch operation on the touch panel. In the navigation device 1, when the current position of the vehicle or the user changes, the display target area of the map image 61 displayed on the liquid crystal display 15 is also changed. As a result, there is a problem that it is difficult to accurately specify a specific point or a specific area on the map image 61 displayed on the liquid crystal display 15 by a touch operation on the touch panel 14.
In the present invention, by fixing the display target area of the map image 61 on the liquid crystal display 15, a specific point or a specific area on the map image 61 displayed on the liquid crystal display 15 can be designated accurately by a touch operation on the touch panel 14. Is possible.

As described above in detail, the navigation device 1 according to the present embodiment, the map display method by the navigation device 1 and the computer program executed by the navigation device 1 display the map image 61 around the vehicle on the liquid crystal display 15. (S11) In the state in which the touch coordinate of one point is detected on the touch panel 14, the scroll processing of the map image 61 is performed based on the displacement of the touch coordinate (S14). In the state of detecting the coordinates, the display target area of the map image 61 is fixed on the liquid crystal display 15 (S15), and is displayed superimposed on the map image 61 based on the displacement of the touch coordinates of at least one point. Since the editing process for the object is executed (S17), the map An editing process with respect to the object which is displayed superimposed on the image 61 it is possible to readily performed on the map image 61. In addition, it is possible to execute an editing process on an object displayed superimposed on the map image 61 in a state where the display target area of the map image 61 is fixed on the liquid crystal display 15. Therefore, when the editing process is performed on the object displayed superimposed on the map image 61, the object to be edited among the objects on the map image 61 displayed on the liquid crystal display 15 is sent to the touch panel 14 of the user. It becomes possible to specify correctly by touch operation. Therefore, even when a plurality of objects are displayed close to each other, it is possible to easily perform an editing process on an arbitrary object.
Further, the rectangular area 71 that is the processing target area is specified based on the touch coordinates detected on the touch panel 14 (S15), and when editing processing related to the display content of the map image 61 is performed, the position is within the specified rectangular area 71. Since the object such as the POI icon 65 to be erased is processed, the object such as the POI icon 65 to be erased among the objects on the map image displayed on the liquid crystal display 15 is touched on the touch panel of the user. It becomes possible to specify correctly by operation. Therefore, even when a plurality of objects such as the POI icons 65 are displayed close to each other, it is possible to easily perform the erasing process on the objects such as the arbitrary POI icons 65. As a result, the map image 61 displayed on the liquid crystal display 15 can be displayed in an easy-to-view manner for the user.
In addition, when the POI icon 65 is deleted, other POI icons 65 indicating the positions of facilities belonging to the same genre as the deleted POI icon 65 can also be selectively deleted from the map image 61. . Therefore, even when the POI icons 65 indicating facilities of a plurality of genres are displayed close to each other, it is possible to easily perform selective erasure processing on the POI icons 65 indicating facilities of any genre. It becomes. As a result, it is possible to edit the map image displayed on the display device so that the user can easily see it.
When the POI icon 65 along the guide route is deleted, the other POI icons 65 along the guide route can be selectively deleted from the map image 61. Therefore, even when a plurality of POI icons 65 are displayed along the guide route, it is possible to easily perform selective erasure processing on the POI icons 65 along the guide route. As a result, the route to the destination displayed on the liquid crystal display 15 can be edited so that the user can easily see it.

Note that the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the scope of the present invention.
For example, in the above embodiment, the POI icon 65, the line 72, and the guide route 64 that are displayed in a superimposed manner on the map image 61 are described as examples of objects to be edited. It is not limited. For example, a character, a destination mark, a vehicle position mark, or the like displayed on the map image may be used as the object.

  In addition, as the editing process for the target object of the present embodiment, the process of deleting the target object, the process of moving the target object, and the process of newly drawing the target object have been described as examples. However, the editing process is limited to the above example. It is not a thing. For example, a process of changing the display color of the object or changing the size of the object may be used.

  Further, in this embodiment, when it is determined that two or more touch coordinates are detected on the touch panel 14 (S13: YES), the display target area of the map image is fixed. It is good also as conditions on detecting the above touch coordinates.

  In the present embodiment, a rectangular area having a diagonal line connecting the detected two-point touch coordinates as a diagonal line is a rectangular area 71 that is a processing target area, but the shape of the rectangular area 71 may be another shape. Further, the rectangular area 71 may be defined by a line instead of an area.

  In addition to the navigation device, the present invention can be applied to a device that displays a map image. For example, the present invention can be applied to a portable terminal such as a cellular phone, a personal computer, a portable music player, and the like.

1 Navigation device 13 Navigation ECU
14 Touch Panel 15 Liquid Crystal Display 41 CPU
42 RAM
43 ROM
60 Travel guidance screen 61 Map image 64 Guide route 65 POI icon 71 Rectangular area

Claims (7)

Map image display means for displaying a map image on a display device;
An object display means for displaying the object on the display device so as to be superimposed on the map image;
A touch panel that is arranged in a display area of the display device and receives a user's touch operation;
Coordinate acquisition means for acquiring touch coordinates that are coordinates of a point touched by the user when the user touches the touch panel;
Scroll display means for scroll-displaying the map image on the display device based on displacement of the touch coordinates in a state where the coordinate acquisition means acquires the touch coordinates of one point;
In a state where the coordinate acquisition means acquires two or more touch coordinates, the display target area of the map image is fixed in the display device, and the map image is based on at least one displacement of the touch coordinates. And a map image processing means for executing an editing process on the object displayed superimposed on the map display device. The map image processing means includes
A processing target area is set based on the touch coordinates of at least two points acquired by the coordinate acquisition unit,
The map display device according to claim 1, wherein the object in the processing target area is deleted from the map image. The object is a POI icon indicating the location of a facility on a map image,
The map image processing means selectively erases the POI icon displayed superimposed on the map image from the map image based on the displacement of the touch coordinates of at least one point acquired by the coordinate acquisition means. The map display device according to claim 1, wherein the map display device is a display device.   The map image processing means selectively erases the POI icon displayed superimposed on the map image from the map image based on the displacement of the touch coordinates of at least one point acquired by the coordinate acquisition means. The map display device according to claim 3, wherein the POI icon indicating the position of a facility belonging to the same genre as the deleted POI icon is deleted from the map image. Route display means for displaying a route from the departure place to the destination superimposed on the map image;
The map image processing means selectively erases the POI icon displayed along the route out of the POI icons displayed superimposed on the map image based on the displacement of the touch coordinates. The map display device according to claim 3 or 4. A map image display step for displaying the map image on the display device;
An object display step of displaying the object on the display device so as to be superimposed on the map image;
A coordinate acquisition step of acquiring touch coordinates, which are coordinates of a point touched by the user, when the user touches a touch panel disposed in a display area of the display device and accepting a user's touch operation;
A scroll display step of scroll-displaying the map image on the display device based on a displacement of the touch coordinates in a state of acquiring the touch coordinates of one point by the coordinate acquisition step;
In a state where two or more touch coordinates are acquired by the coordinate acquiring step, the display target area of the map image is fixed on the display device, and the map image is based on the displacement of the touch coordinates of at least one point. And a map image processing step for executing an editing process on the object displayed superimposed on the map. On the computer,
A map image display function for displaying a map image on a display device;
An object display function for displaying the object on the display device in a superimposed manner on the map image;
A coordinate acquisition function for acquiring touch coordinates that are coordinates of a point touched by the user when the user touches a touch panel that is arranged in a display area of the display device and receives a touch operation of the user;
A scroll display function for scroll-displaying the map image on the display device based on the displacement of the touch coordinates in a state of acquiring the touch coordinates of one point by the coordinate acquisition function;
In a state where two or more touch coordinates are acquired by the coordinate acquisition function, the display target area of the map image is fixed on the display device, and the map image is based on a displacement of at least one touch coordinate. A map image processing function for executing an editing process on the object superimposed and displayed on the object;
A computer program for causing a processor to execute.

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