CN101666656B - Operation method and device of electronic map field of view - Google Patents

Abstract

The present invention provides a method and device for operating the field of view of an electronic map. The method first displays a field of view of an electronic map, and then displays a prompt object of the point of interest at the edge of the field of view toward the direction of the point of interest outside the field of view relative to the field of view, and when the prompt object of the point of interest is clicked, the field of view of the electronic map is moved to the point of interest. Accordingly, the present invention provides a user with a simple operation method to quickly change the field of view to view the location and related information of each point of interest, thereby improving the convenience of operating the field of view of the electronic map.

Description

Operation method and device of electronic map field of view

technical field

The present invention relates to an electronic map operating method and device, in particular to an electronic map field of view operating method, device and computer program product used.

Background technique

In recent years, with the continuous evolution and improvement of electronic technology and communication technology, electronic devices such as cellular phones (Cellular Phone) and personal digital assistants (Personal Digital Assistant, PDA) that do not take up space and can be carried around are also introduced. Portable electronic devices on the market all integrate multiple functions to enhance their competitiveness. In addition to the general functions of taking pictures, calling, and surfing the Internet, they are now connected with positioning systems such as the Global Positioning System (GPS), electronic maps, and navigation systems. Also all integrated on the handheld communication device. Users can use GPS to know their location anytime and anywhere, and at the same time, they can also use the planning and guidance of the navigation system to find the best route to get to the destination quickly and safely.

GPS is a positioning technology that combines satellite and wireless communication, which can provide accurate positioning, speed and time information, while electronic maps can be combined with GPS and other positioning systems to allow users to know the relationship between their current location and destination location relative relationship. Among them, the user can first load the electronic map into the electronic device, and then select or input the desired destination or point of interest (POI) through the touch screen or keyboard of the electronic device. The electronic device will then display the positions of these POIs on the electronic map.

However, in the process of using the electronic map, due to the limited size of the screen of the electronic device, the electronic device can usually only scale the electronic map at an appropriate scale and display a certain field of view of the electronic map on its screen, for example, the user is currently browsing The field of view or the field of view around a point of interest. In this case, if the user wants to view points of interest scattered outside the field of view, he must go through multiple actions of zooming in, zooming out, changing or panning the map, or must go through complicated menu selection actions before he can find them on the map. Points of interest are time-consuming and labor-intensive; in addition, if the user wants to view the relative position of each point of interest in the electronic map, it is necessary to repeatedly adjust the scale and position of the electronic map to find an appropriate scale to display all points of interest in the same field of view , The cumbersome operation is not only time-consuming, but also causes inconvenience to the user.

Contents of the invention

In view of this, the present invention provides a method for operating the field of view of an electronic map. By displaying prompt objects corresponding to points of interest outside the field of view at the edge of the field of view, the user can check the relative positions of each point of interest in the same screen and conveniently Operate the field of view of the electronic map.

The present invention provides an operating device for electronic map field of view. By displaying prompt objects corresponding to points of interest out of the field of view at the edge of the field of view, the user can click to quickly change the field of view of the electronic map to the point of interest.

The present invention provides a computer program product, which can provide a user with a field of view to view the relative positions of various points of interest and conveniently operate an electronic map by loading the computer program into an electronic device for execution.

In order to achieve the above or other objectives, the present invention proposes a method for operating an electronic map field of view. This method first displays a field of view of the electronic map, and then according to the first direction of a first point of interest outside the field of view relative to the first direction of the field of view, a prompt object of the first point of interest is displayed on the edge of the field of view towards the first direction, and when When the prompt object of the first POI is clicked, the field of view of the electronic map is changed to the first POI.

In an embodiment of the present invention, the first direction of the first point of interest relative to the field of view is the first direction of the first point of interest relative to the central point of the field of view.

In an embodiment of the present invention, the field of view of the originally displayed electronic map includes a second point of interest, and after the step of changing the field of view of the electronic map to the first point of interest, further includes In the second direction of the first point of interest, the prompt object of the second point of interest is displayed toward the edge of the second direction within the field of view including the first point of interest.

In an embodiment of the present invention, the step of changing the field of view of the electronic map to the first point of interest includes moving the field of view of the electronic map to the first point of interest by means of translation or switching.

In an embodiment of the present invention, the step of changing the field of view of the electronic map to the first point of interest includes displaying the field of view of the electronic map with the first point of interest as the center.

In an embodiment of the present invention, the step of changing the field of view of the electronic map to the first point of interest includes displaying the field of view of the electronic map with the same zoom ratio.

In an embodiment of the present invention, the above-mentioned step of changing the field of view of the electronic map to the first point of interest includes displaying the field of view of the electronic map at the same zoom ratio with the first point of interest as the center.

In an embodiment of the present invention, the field of view of the originally displayed electronic map includes a second point of interest, and the step of changing the field of view of the electronic map to the first point of interest includes adjusting the zoom ratio of the field of view of the electronic map and changing the , so that the changed field of view includes both the first point of interest and the second point of interest.

The present invention provides an operating device for an electronic map view, which includes an input unit, a storage unit, a display unit and a processing unit. Wherein, the input unit is used for receiving an input signal input by a user. The storage unit is used for storing the electronic map. The display unit is used for displaying the field of view of the electronic map. The processing unit is coupled to the input unit, the storage unit, and the display unit, and according to the first direction of a first point of interest outside the field of view relative to the field of view, the first point of interest is displayed on the edge of the field of view displayed by the display unit toward the first direction. point, and judge whether the prompt object of the first point of interest is clicked according to the input signal, and when the prompt object of the first point of interest is clicked, the field of view of the electronic map displayed on the display unit is changed to the first point of interest point.

In an embodiment of the present invention, the first direction of the first point of interest relative to the field of view is the first direction of the first point of interest relative to the central point of the field of view.

In an embodiment of the present invention, the field of view of the electronic map originally displayed by the display unit includes a second point of interest.

In an embodiment of the present invention, the processing unit further includes, according to the second direction of the second point of interest relative to the first point of interest, displaying the second point of interest on the edge of the second direction in the field of view including the first point of interest The hint object for the point.

In an embodiment of the present invention, the display unit includes moving the field of view of the electronic map to the first point of interest in a panning or switching manner.

In an embodiment of the present invention, the above-mentioned processing unit includes controlling the display unit to display the field of view of the electronic map centered on the first point of interest and at the same zoom ratio.

In an embodiment of the present invention, the field of view of the electronic map originally displayed by the display unit includes a second point of interest. The changed field of view includes both the first point of interest and the second point of interest.

In an embodiment of the present invention, the above processing unit includes presenting the prompt object with a translucent or animated visual effect.

In an embodiment of the present invention, the field of view of the electronic map originally displayed by the display unit includes a second POI, and the prompt object includes one or a combination of prompt text, prompt symbol, and prompt pattern. Wherein, the prompt pattern includes an arrow pointing to the first direction, and the content of the prompt text includes the name of the first point of interest and the distance between the first point of interest and the center point of the field of view or the second point of interest. one or a combination thereof.

The present invention also provides a computer program product, which is used to execute the above-mentioned operation method of the electronic map field of view. program code fragments, setting program code fragments, and deploying program code fragments), and after these program code fragments are loaded into the electronic device and executed, the steps of the above-mentioned operation method of the electronic map field of view and the above-mentioned electronic map field of view can be completed function of the operating device.

According to the direction of the point of interest outside the field of view relative to the direction of the field of view, the present invention displays a prompt object on the edge of the point of interest in the field of view to remind the user of the relative position of the point of interest outside the field of view, and provides the user with the ability to click on the prompt object In this way, the field of view of the electronic map can be quickly changed to a point of interest outside the field of view, which can increase the convenience of operating the field of view of the electronic map.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings.

Description of drawings

FIG. 1 is a flow chart of an operation method of an electronic map view according to an embodiment of the present invention.

2( a ) and FIG. 2( b ) are schematic diagrams of a method for operating an electronic map field of view according to an embodiment of the present invention.

FIG. 3 is a flow chart of a method for operating a field of view of an electronic map according to an embodiment of the present invention.

FIG. 4( a ) and FIG. 4( b ) are schematic diagrams of a method for operating an electronic map field of view according to an embodiment of the present invention.

FIG. 5 is a flow chart of an operation method of an electronic map view according to an embodiment of the present invention.

FIG. 6( a ) and FIG. 6( b ) are schematic diagrams of a method for operating an electronic map field of view according to an embodiment of the present invention.

FIG. 7 is an example of an electronic map field of view operation method according to an embodiment of the present invention.

FIG. 8 is a block diagram of an electronic map field of view operating device according to an embodiment of the present invention.

Description of reference symbols

200, 400, 600, 700: field of view

210, 410, 420, 610, 710: prompt pattern

P1, P2, P3, P4, P5: points of interest

800: operating device

810: input unit

820: storage unit

830: display unit

840: processing unit

S110-S150: each step of the method for operating the electronic map field of view according to an embodiment of the present invention

S310-S360: each step of the operation method of the electronic map field of view according to an embodiment of the present invention

S510-S550: each step of the operation method of the electronic map field of view according to an embodiment of the present invention

Detailed ways

The present invention uses the relative position of each point of interest on the electronic map to determine the direction of the point of interest (Point Of Interest, POI) outside the field of view relative to the current field of view, and displays the corresponding prompt on the edge of the point of interest in the field of view. object. Users can quickly move their field of view to the point of interest by clicking on the prompt object, without cumbersome operation procedures. In order to make the content of the present invention clearer, the following specific examples are given as examples in which the present invention can actually be implemented.

FIG. 1 is a flow chart of a method for operating an electronic map field of view according to an embodiment of the present invention. Please refer to Fig. 1, this embodiment is applicable to electronic devices such as car computers, desktop computers, notebook computers, mobile phones, personal digital assistants (Personal Digital Assistant, PDA) or navigation devices installed with electronic maps, and provides the use The way for the reader to quickly browse the points of interest outside the field of view, the detailed steps are as follows:

First, a field of view of the electronic map is displayed on the screen of the electronic device (step S110). Wherein, limited by the size of the screen, the electronic device usually can only display a certain part of the electronic map (ie, field of view) when displaying the electronic map.

Next, according to the direction of the POI out of the field of view relative to the direction of the current field of view, the electronic device displays a prompt object of the POI in the field of view towards the edge of the direction (step S120 ). In detail, the user can set the point of interest on the electronic map by inputting coordinates or operating the menu. This point of interest can be the destination or scenic spot that the user wants to go to, or it can be Restaurants or gas stations near the current location, the scope of which is not limited in this embodiment.

Preferably, by comparing the relative position of the point of interest with the center point of the current field of view, it can be inferred which direction the point of interest is located in the current field of view, and then it can be displayed on the edge of the current field of view facing this direction to represent this direction. Hint object for points of interest. The reminder object can be an arrow pointing to a point of interest or any combination of other reminder texts, reminder symbols and reminder patterns. For example, the name and distance of a point of interest can be displayed within or around a displayed arrow pointing to the point of interest.

It is worth mentioning that if there is more than one point of interest outside the field of view, the electronic device can also display prompt objects for these points of interest on the edges of the current field of view facing these points of interest in the same way. limit. In addition, if the display range of the prompt object just overlaps with a point of interest in the current field of view, this embodiment also includes presenting the prompt object with a translucent or animated visual effect, so that the user can observe the point of interest outside the field of view. In the case of a point, the ability to browse the point of interest in the field of view will not be affected by the visual interference of the prompt object.

Then, the electronic device detects the user's operation action (step S130 ), so as to determine whether the prompt object of the above-mentioned point of interest is clicked (step S140 ). Wherein, the user can use the mouse to control the cursor on the screen to click on the prompting object, or directly touch and click on the touch screen to select the prompting object, and the scope of this embodiment is not limited.

Finally, when the prompt object of the POI is clicked, the electronic device automatically changes the current field of view to the field of view of the POI (step S150 ). Wherein, the above-mentioned method of changing the field of view may adopt a switching method, or move the current field of view to the point of interest in a sliding manner, and the field of view moved to the point of interest is, for example, centered on the point of interest and with the same zoom ratio. The displayed field of view, its visual effect is like directly panning the electronic map to the point of interest. By quickly panning or switching the field of view, the user can save the cumbersome steps of zooming in, zooming out, and moving the map, and can browse the location and information of the point of interest in a very short time.

For example, FIG. 2( a ) and FIG. 2( b ) are schematic diagrams of a method for operating an electronic map field of view according to an embodiment of the present invention. Please refer to FIG. 2(a) first. The field of view 200 of the electronic map is, for example, the field of view of the user currently browsing the electronic map. The visible range is, for example, about 500 meters, and the visible range does not include points of interest. For example, if the point of interest P1 falls 5 kilometers away from the field of view 200 , the electronic device will display a prompt pattern 210 on the edge of the field of view 200 toward the point of interest P1 for the user to click. Next, please refer to FIG. 2( b ), when the prompt pattern 210 is clicked, the electronic device will change the field of view 200 to the point of interest P1 , and preferably display the point of interest P1 as the center. Accordingly, the user can quickly pan or switch the field of view by clicking the prompt icon 210 to view the position of the point of interest P1 and related information.

It is worth mentioning that, in this embodiment, the field of view originally displayed by the electronic device is the field of view of the user currently browsing the electronic map, which does not include the POI. In another embodiment, the field of view of the electronic map originally displayed by the electronic device may also include points of interest, or a field of view displayed centering on a point of interest. In this case, when the field of view of the electronic map is shifted or switched to a point of interest outside the field of view, the present invention also includes displaying a prompt object of the point of interest in the original field of view in the changed field of view, so as to facilitate the user to switch back to the original point of interest The field of view will be described in detail in another embodiment below.

FIG. 3 is a flow chart of a method for operating a field of view of an electronic map according to an embodiment of the present invention. Please refer to Fig. 3, this embodiment is applicable to electronic devices such as car computers, desktop computers, notebook computers, mobile phones, personal digital assistants or navigation devices installed with electronic maps, and provides the user with a view within the field of view and outside the field of view. Quickly switch between POIs, the detailed steps are as follows:

First, a field of view of the electronic map is displayed on the screen of the electronic device (step S310). Wherein, the field of view includes, for example, the first point of interest, and is displayed centered on the second point of interest.

Next, according to the direction of the first POI out of the field of view relative to the direction of the second POI, the electronic device displays the prompt object of the first POI within the field of view towards the edge of the direction (step S320). In detail, by comparing the relative positions of the second POI and the first POI, it can be inferred which direction the first POI is located in the second POI, and then it can be oriented in this direction in the current field of view. A hint object representing the first POI is displayed on the edge.

Then, the electronic device will detect the user's operation action (step S330), so as to determine whether the prompt object of the above-mentioned point of interest is clicked (step S340), and when the prompt object of the first point of interest is clicked, the electronic device will That is, the field of view of the electronic map is automatically changed to the field of view of the first point of interest (step S350). Wherein, the field of view of the first point of interest is, for example, a field of view centered on the first point of interest and displayed at the same zoom ratio as the original field of view.

At this time, the electronic device further includes, in turn, according to the direction of the second point of interest relative to the first point of interest, and displays a prompt object for the second point of interest toward the edge of the direction in the changed field of view (step S360 ). Accordingly, the user can change the field of view back to the original field of view by clicking the prompt object of the second point of interest again, and then click the prompt object to change the field of view in the same way as the above method, so it will not be repeated here .

For example, FIG. 4( a ) and FIG. 4( b ) are schematic diagrams of a method for operating an electronic map field of view according to an embodiment of the present invention. Please refer to FIG. 4(a) first. The field of view 400 of the electronic map is, for example, the field of view of the user browsing the electronic map at present, and its visual range is about 500 meters, including the point of interest P2. For example, the point of interest P1 is located 5 kilometers away from the field of view 400 . At this time, the electronic device will display a prompt pattern 410 of the point of interest P1 on the edge of the field of view 400 in the direction of the point of interest P1 for the user to click. Next, please refer to FIG. 2( b ), when the prompt pattern 410 is clicked, the electronic device will change the field of view 400 to the point of interest P1 , and display the point of interest P1 as the center. In addition, the electronic device also displays a prompt pattern 420 of the point of interest P2 on the edge of the field of view 400 in the direction of the point of interest P2 for the user to click. Accordingly, the user can quickly pan the field of view between the POI P2 and the POI P1 by clicking the prompt icon 410 and the prompt icon 420 , so as to view the positions and related information of the POI P2 and the POI P1 .

In addition, in an embodiment of the present invention, the user may also need to view the relative position between the first point of interest and the second point of interest for planning the path to go. In this case, the zoom ratio of the field of view needs to be adjusted. The two points of interest can be accommodated in the same frame, so that the user can know their relative positions at a glance. Another embodiment will be described in detail below.

FIG. 5 is a flow chart of a method for operating a field of view of an electronic map according to an embodiment of the present invention. Please refer to Fig. 5, this embodiment is applicable to electronic devices such as car computers, desktop computers, notebook computers, mobile phones, personal digital assistants or navigation devices installed with electronic maps, and provides users with the same field of view To view the location information of more than two points of interest, the detailed steps are as follows:

First, a field of view of the electronic map is displayed on the screen of the electronic device (step S510). Wherein, the field of view includes, for example, a second point of interest, and is displayed centered on the second point of interest.

Next, according to the direction of the first POI outside the field of view relative to the direction of the second POI, the electronic device displays the prompt object of the first POI within the field of view towards the edge of the direction (step S520).

Then, the electronic device will detect the user's operation action (step S530), so as to determine whether the prompt object of the above-mentioned point of interest is clicked (step S540), and when the prompt object of the first point of interest is clicked, the electronic device will That is, the zoom ratio of the field of view of the electronic map is automatically adjusted and changed so that the changed field of view includes both the first point of interest and the second point of interest (step S550 ). Accordingly, the user can properly change the field of view and zoom in to a range including the two POIs by clicking the prompt object of the first POI, thereby saving cumbersome adjustment steps.

For example, FIG. 6( a ) and FIG. 6( b ) are schematic diagrams of a method for operating an electronic map field of view according to an embodiment of the present invention. Please refer to FIG. 6(a) first. The field of view 600 of the electronic map is, for example, the field of view of the user browsing the electronic map at present, and its visual range is about 500 meters, including the point of interest P2. For example, the point of interest P1 is located 5 kilometers away from the field of view 600 . At this time, the electronic device will display a prompt pattern 610 of the point of interest P1 on the edge of the field of view 600 in the direction of the point of interest P1 for the user to click. Next, please refer to FIG. 6(b), when the prompt pattern 610 is clicked, the electronic device will automatically adjust the zoom ratio of the field of view 600 and change it so that the changed field of view 600 includes both the point of interest P1 and the point of interest P2 . Accordingly, the user can click the prompt icon 610 to adjust the field of view and check the relative position between the point of interest P1 and the point of interest P2.

It is worth mentioning that the above embodiments are all described with two points of interest as examples, but the scope is not limited thereto. Those skilled in the art may extend the present invention to more than two points of interest according to actual needs. The application includes displaying multiple points of interest within the field of view, or displaying prompt objects for multiple points of interest outside the field of view at the edge of the field of view, so as to provide users with viewing the positions and related information of different points of interest. Wherein, in the case of displaying multiple points of interest in the field of view, in order to avoid overlapping of the displayed prompt objects with the points of interest in the field of view, the present invention also includes presenting the prompt objects with translucent or animated visual effects.

For example, FIG. 7 is an example of an electronic map field of view operation method according to an embodiment of the present invention. Please refer to FIG. 7 , the field of view 700 of the electronic map includes POIs P2 , P3 , P4 and P5 . The point of interest P1 falls, for example, at a position 5 kilometers away from the field of view 700. At this time, the electronic device will display the prompt pattern 710 of the point of interest P1 on the edge of the field of view 700 toward the direction of the point of interest P1. It just overlaps with the point of interest P2, so in this embodiment, the prompt pattern 710 is displayed in a semi-transparent manner to prevent it from covering the point of interest P2.

For the above-mentioned operation method, the present invention also provides a corresponding operation device, which can be applied to electronic devices such as mobile phones and personal digital assistants, and allows the user of the device to quickly browse the location and related information of each point of interest. Here is another example Examples are described in detail.

FIG. 8 is a block diagram of an electronic map field of view operating device according to an embodiment of the present invention. Please refer to FIG. 8, the operating device 800 of this embodiment is suitable for electronic devices such as car computers, desktop computers, notebook computers, mobile phones, personal digital assistants or navigation devices installed with electronic maps, and provides users with quick changes. The field of view of the electronic map to browse the location and related information of points of interest outside the field of view. The operating device 800 includes an input unit 810, a storage unit 820, a display unit 830 and a processing unit 840, the functions of which are as follows:

The input unit 810 is, for example, an input device such as a mouse and a keyboard connected to a computer, or a touch screen, buttons, scroll wheels, etc. configured on an electronic device, which can generate corresponding input signals according to user operations.

The storage unit 820 is, for example, a storage medium such as a hard disk or storage, which is used for storing the electronic map. The display unit 830 is, for example, a liquid crystal display for displaying a field of view of the electronic map.

The processing unit 840 is coupled to the input unit 810, the storage unit 820, and the display unit 830. In addition to correspondingly displaying the prompt object of the point of interest according to the relative position between the point of interest outside the field of view and the field of view, it also includes When selected, quickly move the field of view of the electronic map to the point of interest.

Specifically, the processing unit 840 will first determine the direction of the POI outside the field of view relative to the field of view, and then display the prompt object of the POI towards the edge of the direction within the field of view displayed by the display unit 830 . In addition, the processing unit 840 also includes moving the field of view displayed on the display unit 830 to the point of interest in a panning or switching manner when the prompt object of the point of interest is clicked.

In addition, when the field of view moves to the point of interest, the processing unit 840 also includes a direction toward the point of interest in the original field of view after the movement, and displays a prompt object of the point of interest, so as to provide a way for the user to return to the original field of view. Accordingly, the user can quickly pan or switch the field of view of the electronic map by operating the device 800 to browse the positions and related information of different points of interest.

It is worth mentioning that, in another embodiment, when the user wants to view the relative positions between two or more points of interest at the same time, the processing unit 840 will properly adjust the visual field when the user clicks the prompt object. Scaling and changing, and simultaneously displaying these points of interest in the same frame, the implementation of which has been described in detail in the previous embodiment, so it will not be repeated here.

The present invention also provides a computer program product, which includes program instructions for executing the above-mentioned operation method of the electronic map field of view, and the computer program product is basically composed of a plurality of program code segments (for example, program code segments for establishing organization charts, Approval form program code fragments, setting program code fragments, and deployment program code fragments), and after these program code fragments are loaded into the electronic device and executed, the steps of the above-mentioned electronic map field of view operation method and the above-mentioned electronic map can be completed The function of the vision operating device.

In summary, in the electronic map field of view operating method, device, and computer program product used in the present invention, by displaying a prompt object corresponding to the point of interest on the edge of the electronic map field of view facing the direction of the external point of interest, so that Users can see at a glance the relative positions of all the POIs they have set. In addition, the present invention also provides the user with the method of clicking the prompt object to quickly switch the field of view to a point of interest outside the field of view, so as to browse the positions and related information of different points of interest, thereby increasing the convenience of the electronic map field of view operation sex.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection is based on the claims of the present invention.

Claims (11)

1. A method for operating an electronic map field of view, comprising the following steps: displaying a field of view of an electronic map; According to a first direction of a first point of interest outside the field of view relative to the field of view, displaying a prompt object of the first point of interest within the field of view towards the edge of the first direction; and When the prompt object of the first POI is clicked, the field of view of the electronic map is changed to the first POI. 2. The method for operating the field of view of the electronic map as claimed in claim 1, wherein the field of view of the electronic map originally displayed includes a second point of interest, and after changing the field of view of the electronic map to the first point of interest After the steps, also include: According to a second direction of the second point of interest relative to the first point of interest, the prompt object of the second point of interest is displayed toward the edge of the second direction within the field of view including the first point of interest. 3. The method for operating the field of view of the electronic map according to claim 1, wherein the step of changing the field of view of the electronic map to the first point of interest comprises moving the field of view of the electronic map to the first point of interest in a panning or switching manner. First point of interest. 4. The method for operating the field of view of the electronic map as claimed in claim 1, wherein the step of changing the field of view of the electronic map to the first point of interest comprises: The field of view of the electronic map is displayed with the first POI as the center and at the same zoom ratio. 5. The method for operating the field of view of the electronic map as claimed in claim 1, wherein the field of view of the electronic map originally displayed includes a second point of interest, wherein the step of changing the field of view of the electronic map to the first point of interest include: Adjusting and changing a zoom ratio of the field of view of the electronic map, so that the changed field of view includes both the first point of interest and the second point of interest. 6. An operating device for an electronic map field of view, comprising: an input unit for receiving an input signal; a storage unit for storing an electronic map; a display unit for displaying a field of view of the electronic map; and A processing unit, coupled to the input unit, the storage unit and the display unit, according to a first direction of a first point of interest outside the field of view relative to the field of view, within the field of view displayed on the display unit toward the first An edge of a direction displays a prompt object of the first point of interest, and judges whether the prompt object of the first point of interest is clicked according to the input signal, and when the prompt object of the first point of interest is clicked , changing the field of view of the electronic map displayed by the display unit to the first point of interest. 7. The operating device for electronic map field of view as claimed in claim 6, wherein the field of view of the electronic map originally displayed by the display unit includes a second point of interest, and the processing unit further includes a function according to the second point of interest With respect to a second direction of the first point of interest, a prompt object of the second point of interest is displayed toward an edge of the second direction within the field of view including the first point of interest. 8 . The device for operating an electronic map field of view according to claim 6 , wherein the processing unit controls the display unit to display the field of view of the electronic map with the first point of interest as the center and at the same zoom ratio. 9. The operating device of the electronic map field of view as claimed in claim 6, wherein the field of view of the electronic map originally displayed by the display unit includes a second point of interest, wherein the processing unit includes adjusting the field of view of the electronic map and change it so that the changed field of view displayed on the display unit includes both the first point of interest and the second point of interest. 10. The operating device for electronic map field of view according to claim 6, wherein the field of view of the electronic map originally displayed by the display unit includes a second point of interest, wherein the prompt object includes prompt text and prompt pattern among them one or a combination thereof; Wherein the prompt pattern includes an arrow pointing to the first direction; and The prompt text includes one or a combination of the name of the first POI and the distance between the first POI and the second POI. 11 . The operating device for electronic map view according to claim 6 , wherein the processing unit presents the reminder object with a translucent or animated visual effect. 12 .

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