JP6433347B2 - Map display control apparatus and map automatic scroll method - Google Patents

Description

  The present invention relates to a map display control device that controls map display, and more particularly, to a process of scrolling a displayed map.

  For example, devices (map display devices) that display a map on the screen of a display device such as a navigation device have been put into practical use. Many map display devices are capable of scrolling a map displayed on the display device in accordance with a user operation, and various techniques relating to map scrolling have been proposed.

  For example, in Patent Document 1 below, as a map scrolling method that allows a user to efficiently search for a desired facility on a screen on which a map is displayed, the map is automatically scrolled in a certain direction designated by the user. When a desired facility is displayed on the screen, a method is disclosed in which the scrolling speed is lowered to notify the existence of the facility. In addition, a technique is disclosed in which when a desired facility is displayed on the screen, the map is automatically scrolled so that the facility is at the center of the screen. Further, a technique has been proposed in which a screen displayed during scrolling of a map approaches a desired facility to notify the user by vibrating the screen.

JP 2010-96737 A

  The map scrolling method in Patent Document 1 automatically scrolls a map linearly in a direction specified by a user first. Therefore, if the desired facility does not exist in the automatically scrolled direction, the facility cannot be found and the degree of freedom is low.

  The present invention has been made to solve the above-described problems, and can efficiently search for a desired facility on a screen on which a map is displayed, and can realize a highly flexible map scroll. An object is to provide a map display control device.

A map display control device according to the present invention includes a map information acquisition unit that acquires map information, a display processing unit that displays a map based on the map information on a display device, and information on an operation performed by a user using an input device. An operation information acquisition unit to be acquired, a scroll processing unit for scrolling a map displayed on the display device by the display processing unit, and a priority object setting unit for determining a priority object having a high priority among objects included in the map. The scroll processing unit executes manual map scroll for scrolling the map while changing the scroll direction according to the manual scroll operation which is a user operation for scrolling the map, and displays it on the display device during the manual map scroll. When detecting that the priority object exists within a predetermined range based on a map in, From serial manual map scroll automatically switches the direction of preferred object to an automatic map scrolling to automatically scroll the map.

  According to the present invention, when the map displayed on the screen approaches the position of the priority object in the middle of the map scroll (manual map scroll) according to the manual scroll operation of the user, the direction of the priority object is present. Automatic map scrolling (automatic map scrolling) is executed. A priority map can be efficiently searched for by manual map scrolling with a high degree of freedom, and a map of an area where the priority object exists can be easily displayed on the display device.

  Objects, features, aspects, and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

2 is a functional block diagram of the map display device according to Embodiment 1. FIG. 2 is a diagram illustrating a hardware configuration of the map display control device according to Embodiment 1. FIG. It is a figure for demonstrating the example of manual scroll operation. It is a figure for demonstrating the example of manual scroll operation. It is a figure for demonstrating the example of manual scroll operation. FIG. 6 is a diagram for explaining the operation of the map display device according to the first embodiment. It is a figure which shows the specific example of operation | movement of the map display apparatus which concerns on Embodiment 1. FIG. It is a figure which shows the specific example of operation | movement of the map display apparatus which concerns on Embodiment 1. FIG. 4 is a flowchart showing the operation of the map display control device according to the first embodiment. It is a figure for demonstrating the example of automatic scroll start conditions. It is a figure for demonstrating the example of automatic scroll start conditions. It is a figure for demonstrating the example of automatic scroll start conditions. It is a figure for demonstrating the example of automatic scroll termination conditions. It is a figure for demonstrating the example of automatic scroll termination conditions. It is a figure for demonstrating the example of automatic scroll termination conditions. It is a figure which shows the example of the change of the scroll speed in manual map scroll and automatic map scroll. It is a figure which shows the example of the change of the scroll speed in manual map scroll and automatic map scroll. FIG. 10 is a diagram illustrating an example of an automatic scroll start icon in the second embodiment. FIG. 10 is a diagram illustrating an example of an automatic scroll start icon in the second embodiment. FIG. 10 is a diagram illustrating an example of an automatic scroll start icon in the second embodiment.

<Embodiment 1>
FIG. 1 is a functional block diagram of a map display device 20 according to the first embodiment. The map display device 20 includes a map display control device 10, and a map information storage device 21, a display device 22, and an input device 23 connected thereto. As a specific device to which the map display device 20 is applied, for example, a car navigation device, a portable navigation device (PND), a mobile phone, a smartphone, and the like can be considered.

  The map information storage device 21 is a storage medium that stores map information. The map information includes information on various features (including not only substantial objects such as roads, buildings, railroads, and rivers but also intangible elements such as boundaries and bus routes) that are described on the map. In this specification, the constituent elements of the map representing each feature are referred to as “objects”. The map information storage device 21 may be configured as a server that distributes map information to the map display control device 10 through a communication network such as an Internet line.

  The display device 22 has a screen for the map display control device 10 to display a map. The input device 23 is a user interface that receives operations and information input by the user to the map display control device 10. The display device 22 is configured by, for example, a liquid crystal display device. The input device 23 may be hardware such as an operation button, a keyboard, a mouse, and a joystick, or may be a software key using an icon displayed on the screen. Furthermore, a voice recognition device in which a user inputs operation contents by voice may be used. When displaying the software key as the input device 23 on the screen of the display device 22, the display device 22 and the input device 23 may be configured as one touch panel having both functions.

  The user can scroll the map displayed on the display device 22 by operating the input device 23. Hereinafter, the operation for the user to scroll the map is referred to as “manual scroll operation”, and the process in which the map display control device 10 scrolls the map in response to the manual scroll operation is referred to as “manual map scroll”. On the other hand, the process in which the map display control apparatus 10 automatically scrolls the map is referred to as “automatic map scrolling”.

  The manual scroll operation is performed by the map display control device 10 scrolling the map while changing the scroll direction according to the user's manual scroll operation. Therefore, the user can freely change the scroll direction during the manual map scroll by continuously performing the manual scroll operation.

  As shown in FIG. 1, the map display control device 10 includes a map information acquisition unit 11, a display processing unit 12, an operation information acquisition unit 13, a scroll processing unit 14, and a priority object setting unit 15.

  The map information acquisition unit 11 acquires map information from the map information storage device 21. The display processing unit 12 generates an image signal for displaying an image on the display device 22, and can display a map based on the map information acquired by the map information acquisition unit 11 on the display device 22. The operation information acquisition unit 13 acquires information on an operation performed by the user using the input device 23.

  The priority object setting unit 15 determines a priority object having a high priority from the objects included in the map. The priority object setting unit 15 may use any method for determining which object is set as the priority object. However, in the first embodiment, the user specifies the priority object using the input device 23. In addition, the priority object setting unit 15 stores the priority object designated by the user even after the operation of the map display control device 10 is finished.

  Priority objects are not necessarily point-like objects that represent points, such as buildings and intersections. For example, roads, railroads, administrative boundaries, rivers, coastlines, bus routes, etc. are continuous or intermittent. The shape may be sufficient. Intermittent objects include rivers and tracks that partially pass underground, highways that are partially interrupted, and archipelago.

  The scroll processing unit 14 performs a process of scrolling the map displayed on the display device 22 by the display processing unit 12. When the user performs a manual scroll operation, the scroll processing unit 14 scrolls the map according to the manual scroll operation (manual map scroll). When the scroll processing unit 14 detects that a priority object exists within a predetermined range with reference to the map being displayed on the display device 22 during manual map scrolling, the map is moved in the direction of the priority object. Scroll automatically (automatic map scrolling).

  FIG. 2 is a diagram illustrating a hardware configuration of the map display control device 10. As shown in FIG. 2, the map display control apparatus 10 includes at least a processor 51, a memory 52 (storage device), and an input / output interface 53. The map information acquisition unit 11, display processing unit 12, operation information acquisition unit 13, scroll processing unit 14, and priority object setting unit 15 in FIG. 1 are realized by the processor 51 executing a program stored in the memory 52. .

  Further, the map information storage device 21, the display device 22, and the input device 23 of FIG. 1 are connected to an input / output interface 53 and controlled by the processor 51 executing a program stored in the memory 52.

  In FIG. 1, the map information storage device 21, the display device 22, and the input device 23 are configured to be externally attached to the map display control device 10, but their hardware is arranged inside the map display control device 10. It may be provided. In FIG. 2, one processor 51 and one memory 52 are shown, but a plurality of processors 51 and a plurality of memories 52 may cooperate to implement the function of each element of the map display control device 10.

  Here, a manual scroll operation performed by the user for scrolling the map will be described. For example, when the display device 22 and the input device 23 constitute a single touch panel, the manual scroll operation includes a screen of the display device 22 displaying a map (more precisely, the screen of the display device 22 is covered). A gesture operation on a touch pad as the input device 23 is representative. The gesture operation for realizing the manual scroll operation includes “drag” in which a finger is slid while touching the screen, and “flick” in which the finger is moved on the screen. If the touch panel is a three-dimensional touch panel, a gesture operation in which a finger slides in the air can be applied to a manual scroll operation.

  FIG. 3 shows a manual scroll operation by dragging to the display device 22 (touch panel). When the user drags on the screen of the display device 22, the map display control device 10 displays on the display device 22 in accordance with the drag direction (lower left direction in FIG. 3) and length (movement distance of the finger). Scroll the map.

  Further, as shown in FIG. 4, an icon (scroll operation icon) 41 for manual scroll operation may be displayed on the screen of the display device 22 (touch panel). In this case, the manual scroll operation is performed by the user specifying the map scroll direction using the scroll operation icon 41. That is, while the user is touching any direction key of the scroll operation icon 41, the map display control device 10 scrolls the map in the direction corresponding to the direction key. With this method, it is not necessary to move a finger on the screen, and the map can be scrolled only by the user touching the screen.

  The manual scroll operation may be performed using the input device 23 as hardware. For example, the input device 23 is configured by a hardware key for manual scroll operation as shown in FIG. 5, and the map display control device 10 corresponds to the direction key while the user is pressing any direction key. You may make it scroll a map. The dial provided at the center of the input device 23 shown in FIG. 5 is used for operations such as enlargement / reduction of the map.

  FIG. 6 is a diagram showing an outline of the operation of the map display device 20 according to the first embodiment. In order for the map display device 20 to execute the automatic map scrolling of the present invention, it is necessary that a priority object is set in advance in the priority object setting unit 15. Here, it is assumed that a specific facility is set as a priority object by the user. In the diagram shown below, the priority object is indicated by the symbol “P”.

  Here, in FIG. 6, not only the map being displayed on the screen of the display device 22 but also a map outside the map being displayed is shown. Then, the screen of the display device 22 (double-line rectangle) moves on the map to express the scrolling of the map. Therefore, the moving direction of the display device 22 in FIG. 6 and the scroll direction of the map on the display device 22 are in a reverse relationship to each other. For example, scrolling the map displayed on the display device 22 to the lower left as shown in FIG. 3 corresponds to moving the screen of the display device 22 to the upper right in FIG.

  First, as an initial state, a state is assumed in which a map at a position away from the priority object is displayed on the display device 22, as shown in part (a) of FIG. From that state, when the user performs a manual scroll operation, the map display control device 10 scrolls the map according to the manual scroll operation (manual map scroll), and as shown in FIG. The range of the map displayed on the display device 22 is moved.

  Further, when the user repeats the manual scrolling operation and the map displayed on the display device 22 approaches the priority object as shown in part (c) of FIG. 6, the map display control device 10 controls the display device 22. The map displayed on the display device 22 is automatically scrolled so that the screen is drawn to the priority object (automatic map scrolling). When the priority object is displayed at the center of the screen of the display device 22 as shown in FIG. 6D by the automatic map scroll, the map display control device 10 ends the automatic map scroll.

  As described above, according to the map display control device 10 according to the first embodiment, a map displayed on the display device 22 in the middle of scrolling a map (manual map scrolling) with a high degree of freedom according to a user operation. When a desired priority object is present near the map, scrolling of the map (automatic map scrolling) is automatically performed in the direction in which the priority object exists. A priority map can be efficiently searched for by manual map scrolling with a high degree of freedom, and a map in which the priority object exists can be easily displayed on the display device 22.

  For example, it is assumed that a map corresponding to the area A1 shown in FIG. 7 is displayed on the display device 22 before the manual scroll operation is started. The user can scroll the map by performing a manual scroll operation in order to search for a priority object (desired facility). Manual map scrolling has a high degree of freedom because the scroll direction can be changed in the middle, but if the user does not know the position of the priority object, the priority object can be displayed on the screen of the display device 22 only by manual scroll operation. difficult. In the present invention, when the map being displayed on the display device 22 is close to the priority object to some extent (for example, the state where the map of the area A2 is displayed), the priority object is displayed on the display device 22 by automatic map scrolling. Therefore, the priority object can be efficiently searched for and displayed on the display device 22 easily.

  In the present invention, the manual map scroll may not completely follow the user's operation. For example, as shown in FIG. 8, it may include auxiliary automatic scrolling in which the scroll direction is corrected when the map is likely to be off the road during manual map scrolling. Also in this case, when the map displayed on the display device 22 is close to the priority object to some extent (for example, the map of the area A2 is displayed), automatic map scrolling starts in the direction of the priority object. What should I do?

  7 and 8, the scroll direction in the automatic map scroll is indicated by a straight arrow, but the scroll direction may be changed in a curved line.

  FIG. 9 is a flowchart showing the operation of the map display control apparatus 10 according to the first embodiment. The operation of the map display device 20 described with reference to FIGS. 6 to 8 is realized by the map display control device 10 performing an operation according to this flowchart.

  When the map display control device 10 is activated, the map information acquisition unit 11 acquires map information from the map information storage device 21, and the display processing unit 12 causes the display device 22 to display a map corresponding to the map information (step S1). . Further, the priority object setting unit 15 sets an object designated by the user as a priority object (step S2).

  The map display control device 10 waits for the user to perform a manual scroll operation using the input device 23 (step S3). When a manual scroll operation is performed by the user (YES in step S3), the scroll processing unit 14 scrolls the map in accordance with the manual scroll operation (step S4). That is, manual map scrolling is executed.

  After executing the manual map scroll, the scroll processing unit 14 determines whether or not to perform automatic map scroll to the priority object. This determination is made by confirming whether or not a predetermined “automatic scroll start condition” is satisfied (step S5).

  Here, an example of the automatic scroll start condition is shown. In the present embodiment, the automatic scroll start condition is that the priority object is within a predetermined range with reference to the map being displayed on the display device 22. For example, as shown in FIG. 10, the automatic scroll start condition is that a priority object has entered a range within a certain distance from the map displayed on the display device 22 (an area surrounded by a broken line in FIG. 10). Can be considered.

  Further, as shown in FIG. 11, the map is divided into meshes based on the area being displayed on the display device 22, and is defined by a predetermined number of areas centered on the area being displayed on the display device 22. The automatic scroll start condition may be that the priority object is within the specified range. For example, it is conceivable that the automatic scroll start condition is that the priority object has entered the area being displayed and the area adjacent to the area being displayed (the sandy pattern area in FIG. 11).

  The automatic scroll start condition may include a state in which the priority object is displayed on the display device 22. For example, as shown in FIG. 12, it can be considered that the automatic scroll start condition is that a priority object has entered inside the map displayed on the display device 22.

  Returning to FIG. 9, if the automatic scroll start condition is satisfied (YES in step S5), the scroll processing unit 14 automatically scrolls the map toward the priority object (step S6). That is, automatic map scrolling to the priority object is executed. On the other hand, if the automatic scroll start condition is not satisfied (NO in step S5), the process returns to step S3 and waits for the next manual scroll operation.

  When the automatic map scroll is performed in step S6, the scroll processing unit 14 determines whether or not to end the automatic map scroll while performing the automatic map scroll. This determination is made by confirming whether or not a predetermined “automatic scroll end condition” is satisfied (step S7). If the automatic scroll end condition is not satisfied (NO in step S7), the automatic map scroll in step S6 is continued. If the automatic scroll end condition is satisfied (YES in step S7), the automatic map scroll is ended and the flow of FIG. 9 is ended. The flow of FIG. 9 is also executed when the user starts a manual scroll operation for searching for another priority object, or when the user changes the setting of the priority object.

  Here, an example of the automatic scroll end condition is shown. For example, as shown in FIG. 13, the automatic scroll end condition may be that the priority object is displayed at a specified position on the screen of the display device 22 (the center of the screen in FIG. 13). Further, as shown in FIG. 14, the automatic scroll end condition may be that the priority object is displayed within a specified range on the screen of the display device 22 (within a broken-line rectangle in FIG. 14). If the display device 22 and the input device 23 constitute one touch panel, the automatic scroll end condition may be that the priority object is displayed at the touch position of the user as shown in FIG. .

  16 and 17 are diagrams showing examples of changes in scroll speed in manual map scrolling and automatic map scrolling. In the graph shown in each figure, the horizontal axis represents the time since the manual scroll operation was started, and the vertical axis represents the scroll speed in automatic map scrolling.

  The scroll speed at the time of manual map scrolling and automatic map scrolling need not be constant, and may be changed according to a predetermined rule. For example, as shown in FIG. 16, the scroll speed is gradually increased immediately after the start of the manual map scroll, or the scroll speed decreases as the map displayed on the display device 22 in the automatic map scroll approaches the priority object. It is conceivable to do so. Further, as shown in the figure, automatic map scrolling may be started after a predetermined time delay after the automatic scroll start condition is satisfied.

  Further, when the user resumes the manual scroll operation during the automatic map scroll, the manual map scroll may be resumed accordingly. In that case, as shown in FIG. 17, manual map scrolling may be started after a certain time delay from the detection of restart of the manual scroll operation.

  Note that each of the automatic scroll start condition, the automatic scroll end condition, the manual scroll operation, and the scroll speed in the automatic map scroll may be changed by the user according to preference. Further, when the user does not need the automatic map scroll to the priority object, the user may be able to pause the automatic map scroll function.

  In the above description, an example in which only one priority object (P) exists on the map is shown, but a plurality of priority objects may exist. For example, it can be considered that all objects having attributes designated by the user are set as priority objects. In this case, for example, when the user designates “convenience store” as the attribute of the priority object, all convenience stores are set as priority objects.

  Further, the user may be allowed to specify a plurality of priority object attributes. In this case, for example, when the user selects “post office”, “convenience store”, and “koban” as the priority object attributes, all post offices, all convenience stores, and all police boxes are set as the priority objects.

  In the case where a plurality of priority objects exist, it is assumed that a plurality of priority objects satisfying the automatic scroll start condition occur, that is, a case where a plurality of priority objects fall within a predetermined range with reference to the map being displayed. The In such a case, a priority order is set in advance for each attribute designated as a priority object, and automatic map scrolling is performed toward the highest priority order object among the priority objects that satisfy the automatic scroll start condition. Can be considered. Alternatively, the automatic map scroll may be performed toward the closest object that satisfies the automatic scroll start condition from the displayed map.

  In addition, when the priority object that satisfies the automatic scroll start condition has a length such as a road or a track, the automatic map scroll may be performed toward the representative point on the priority object. . The position of the representative point on the priority object may be fixed or may change. For example, a point closest to the displayed map in the priority object may be determined as the representative point. In that case, the position of the representative point on the priority object changes depending on the position of the map being displayed.

<Embodiment 2>
The map display control apparatus 10 according to the first embodiment is configured to automatically start automatic map scrolling to the priority object when the automatic scroll start condition is satisfied during manual map scrolling. The map display control device 10 starts automatic map scrolling only when permission is obtained from the user after the automatic scroll start condition is satisfied.

  In the map display control device 10 of the second embodiment, when the scroll processing unit 14 detects that the automatic scroll start condition is satisfied, the display processing unit 12 performs the automatic map scrolling as shown in FIG. The automatic scroll start icon 42 is displayed on the display device 22. When the automatic scroll start icon 42 is operated by the user, the scroll processing unit 14 determines that the user's permission has been obtained, and starts automatic map scrolling to the priority object only in that case. Alternatively, the automatic map scroll to the priority object may be performed only while the automatic scroll start icon 42 is touched by the user.

  According to the present embodiment, automatic map scrolling is started only when the user permits it (when the automatic scroll start icon 42 is operated). This is effective when it is desired to maintain the state where the map after manual map scrolling is displayed on the display device 22.

  FIG. 18 shows an example in which the display position of the automatic scroll start icon 42 is the center of the screen of the display device 22, but the display position may be arbitrary. For example, when the display device 22 and the input device 23 constitute one touch panel, as shown in FIG. 19, it corresponds to the end point of the manual scroll operation by the gesture operation (for example, the position where the finger is released from the screen after dragging). The automatic scroll start icon 42 may be displayed at the position to be used.

  When the manual scroll operation is performed by the scroll operation icon 41 (software key) displayed on the display device 22 (touch panel) as in the example shown in FIG. 4, the automatic scroll start icon is displayed as shown in FIG. 42 may be displayed near the scroll operation icon 41.

  In the above description, the map information acquisition unit 11, the display processing unit 12, the operation information acquisition unit 13, the scroll processing unit 14, and the priority object setting unit 15, which are components of the map display control device 10, are processed by the processor 51 in FIG. 2. This was realized by operating according to a software program stored in the memory 52 or the like. However, each component described above may be realized by a signal processing circuit as hardware configured by an electric circuit. Note that the word “... processing circuit” may be used instead of the word “... part” as an expression representing a concept including both a component realized by software and a hardware component. it can.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

  Although the present invention has been described in detail, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

  DESCRIPTION OF SYMBOLS 10 Map display control apparatus, 11 Map information acquisition part, 12 Display processing part, 13 Operation information acquisition part, 14 Scroll processing part, 15 Priority object setting part, 20 Map display apparatus, 21 Map information storage apparatus, 22 Display apparatus, 23 Input device, 30 in-vehicle device, 41 scroll operation icon, 42 automatic scroll start icon, 51 processor, 52 memory, 53 input / output interface.

Claims (11)

A map information acquisition unit for acquiring map information;
A display processing unit for displaying a map based on the map information on a display device;
An operation information acquisition unit for acquiring information of an operation performed by the user using the input device;
A scroll processing unit for scrolling the map displayed on the display device by the display processing unit;
A priority object setting unit for determining a priority object having a high priority among the objects included in the map;
With
The scroll processing unit
A manual map scroll is performed to scroll the map while changing a scroll direction in accordance with a manual scroll operation which is a user operation for scrolling the map, and is being displayed on the display device in the middle of the manual map scroll. When it is detected that the priority object exists within a predetermined range with reference to the map, the manual map scroll is automatically changed to the automatic map scroll for automatically scrolling the map in the direction of the priority object. Switch to
A map display control device characterized by that. The map display control device according to claim 1, wherein the predetermined range is a range within a certain distance from the map being displayed on the display device. The predetermined range is a predetermined number of regions centered on the region being displayed on the display device when the map is divided into meshes based on the region being displayed on the display device. The map display control device according to claim 1, which is in a prescribed range. The map display control device according to claim 1, wherein the predetermined range is a range inside the map being displayed on the display device. The scroll processing unit terminates the automatic map scroll when the priority object is displayed within a specified position or a specified range on the screen of the display device while the automatic map scroll is being executed. The map display control device according to any one of claims 1 to 4. The map display control device according to any one of claims 1 to 5, wherein the scroll processing unit changes a scroll speed of the map according to a predetermined rule while the automatic map scroll is executed. 7. The scroll processing unit according to claim 1, wherein the scroll processing unit starts the automatic map scrolling after a predetermined time delay after detecting the presence of the priority object within the predetermined range. Map display controller. The scroll processing unit starts the automatic map scrolling only when obtaining permission from a user after detecting that the priority object exists within the predetermined range. The map display control device according to any one of the above. The display processing unit displays an automatic scroll start icon on the display device prior to the execution of the automatic map scroll,
The map display control device according to any one of claims 1 to 7, wherein the scroll processing unit starts the automatic map scroll only when the automatic scroll start icon is operated by a user. The display device and the input device constitute one touch panel,
The map display control device according to claim 9, wherein the display processing unit displays the automatic scroll start icon at a position corresponding to an end point of the manual scroll operation on the touch panel. A method of automatically scrolling a map in a map display control device,
The display processing unit of the map display control device displays a map based on map information on the display device,
The priority object setting unit of the map display control device determines a priority object having a high priority among objects included in the map,
The scroll processing unit of the map display control device executes a manual map scroll for scrolling the map while changing a scroll direction in accordance with a manual scroll operation which is a user operation for scrolling the map,
When the scroll processing unit detects that the priority object exists within a predetermined range with reference to the map being displayed on the display device in the middle of the manual map scroll, , Automatically switching to automatic map scrolling that automatically scrolls the map in the direction of the priority object.
A method for automatically scrolling a map.

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