JP2011002284A - Facility icon display adjusting map display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a facility icon display adjusting map display that allows a user to readily view maps and POI icons, since maps and POI icons become hard to see, when a large number of POI icons exist on a map display.SOLUTION: A region of map screen instructed by a user is detected, and a processing which displays the facility icons of predetermined kinds on the region indicated by the user is performed, when facility icons are displayed on a full screen. A processing for displaying facility icons of predetermined kinds on the region indicated by the user is performed, when facility icons are not displayed on the full screen. The processing whether to display the facility icons on the indicated region is performed, to display them by two or more steps in accordance with the times indicated by the user. Accordingly, POI icons of an optional facility species are sequentially set non-displayed or displayed. Final step for the display may also be set as all non-display or all display of POI icons.

Description

  The present invention relates to a map display device such as a navigation device, and a facility icon display adjustment in which icons indicating various facilities to be displayed on a map can be easily displayed on a map screen and the icon display can be easily viewed. Relates to the device.

  The display of maps is widely used in navigation devices, various portable information terminals, personal computers, and the like. For example, in navigation devices, map data for drawing maps and facilities are displayed and searched. A map / information data recording medium such as a DVD or a hard disk on which facility information data is recorded is provided. The navigation device uses a data capture device that captures data from this map / information data recording medium, a monitor that displays a map, etc., and a self-contained navigation device that uses a GPS receiver, a mileage sensor, a gyroscope, etc., if necessary. Has a current position detection device that detects the current position and the direction of travel, fetches map data including the current position from a map / information data recording medium, and monitors a map image around the current position based on the map data The current position mark is superimposed on the monitor screen and displayed on the monitor screen, the map image is scrolled as the vehicle moves, or the map image is fixed on the screen and the current position mark is moved. You can see at a glance where you are moving.

  Map data recorded on a map / information data recording medium such as a DVD or a hard disk is divided into longitude and latitude widths of appropriate sizes according to various scale levels. It is stored as a coordinate set of represented nodes. A road is composed of a combination of two or more nodes, and map data displays a road layer consisting of a road list, a node table, an intersection configuration node list, etc., and roads, buildings, facilities, parks, rivers, etc. on the map screen. Map data such as various background layers and information data for displaying characters, map symbols, etc., such as administrative division names such as municipalities, road names, intersection names, and facility names. As this information data, for each facility displayed on the map, an icon for each genre of each facility is displayed so that the type of facility can be seen at a glance, or an icon unique to the store at a national franchise store or the like. Is displayed.

  Various facilities as described above are referred to as POI (Point of Interest), and icons of those facilities are referred to as POI icons. Therefore, the POI icon which is an icon of this facility is hereinafter also referred to as “facility icon”. This POI icon uses a unique POI icon so that each map maker can easily understand or distinguish it from other POI icons, in addition to using a nationally unified icon for map display. It is also done to display. In addition, such a POI icon is displayed when a wide-area map is displayed, and the icons overlap so that it is difficult to see the map. When displaying a smaller scale map, that is, a more detailed map, the POI icon is displayed. Is displayed.

  The POI icon displayed on the map as described above is displayed, for example, as shown in FIG. That is, as shown in FIG. 9 (a), for POI icons displayed on the road map, the coordinate information of each POI icon is stored in the map database, and in the illustrated example, it differs for each POI icon type. Here, the position coordinates of each POI are shown in relation to the road R. In the figure, a star is a restaurant, a diamond is an ATM, a triangle is a hospital, a square is a post office, and a hexagon is a gas station.

  Therefore, as shown in FIG. 4B, the user draws a preset POI icon corresponding to each facility for each point on the actual map screen based on this data. You can see the location and type of the facility. The display order of the POI icons displayed at this time is determined by the importance of each facility set in advance as in the list shown in FIG. 9C, for example, and the POI icons of important facilities are displayed later. Thus, as described later, when POI icons are displayed in an overlapping manner, the most important icons are displayed on the upper layer so that they can be seen well.

  In such a map screen, if there are too many POI icons, they overlap each other, making it difficult to see the POI icons displayed in the lower layer. For this reason, the POI icon is displayed after the detailed map is displayed to the scale of the predetermined map. However, as shown in FIG. 5B, for example, the roads R1 and R2 are still displayed. At the intersection C, the right hospital and ATM overlap in the figure, the left post office and restaurant overlap, and in particular, the ATM and restaurant displayed in the lower layer cannot be substantially seen.

  Furthermore, when the number of such facility icons increases, for example, in front of a relatively large station or in a specific place in a large city, the facility icons are dense and it is difficult to see the road. It often happens. FIG. 9D shows a map display example in such a state, and in the specific area in front of Naniwa Station in the figure, the facility icons are dense and the road map is substantially invisible. Such a state is known to be remarkable on a map of New York City, for example.

  In order to solve the problem caused by the crowded POI icons as described above, for example, when a navigation apparatus requests display of a map image of a desired point, Patent Document 1 uses a region designating unit to simplify a desired display region. A map display technique is disclosed in which a facility in a desired designated area of a map image is searched and only the facility information is extracted and displayed. Further, in Patent Document 2, when the number of POI icons, etc. that can be displayed in one display area exceeds a predetermined number when the POI icons are superimposed on the display map, the excess icons are displayed. Thus, a technique for improving the appearance of the display map is disclosed. Patent Document 3 discloses a technique in which POI icons that are displayed while interfering with each other are not displayed for POI icons in which a portion that is not displayed due to overlapping is higher than a predetermined ratio.

Japanese Patent Laid-Open No. 2008-180786 Utility Model Registration No. 2602938 Japanese Patent No. 4007263

  As described above, in order to solve the problem that the POI icon displayed in the lower layer becomes difficult to see due to the overlap of the POI icons and the road becomes difficult to see, a desired one as described in Patent Document 1 is used. With the technology that specifies the display area and extracts and displays only the facilities in the specified area, when you want to display all the facilities in the whole area, only the specific area is hidden by the display of the facilities. It is not possible to display when the road is clearly displayed. Moreover, since it is simply a selection of whether or not to display facilities, for example, since restaurants are densely located in a specific area, it is unnecessary to display those restaurants, and it is specified that other facilities are to be displayed. It is also impossible to switch between display and non-display depending on the type of facility.

  In addition, in the technology that does not display a POI icon that is substantially invisible as described in Patent Documents 2 and 3, a POI icon that is actually important to the user is not displayed at all. On the contrary, the POI icon that can be understood even if the screen is difficult to view may be erased. In addition, for POI icons that are difficult to understand by overlapping, it is possible to clarify the facility existing at that position by reducing the scale so that the map portion can be enlarged, and it is not preferable to simply delete the display. .

  The problem that is difficult to see due to overlapping POI icons as described above is not limited to the navigation device as described above, but the same problem occurs when displaying a map on a mobile phone, a personal digital assistant, a personal computer, etc. Measures are required in the field of various map displays.

  Therefore, according to the present invention, the POI icons displayed on the map interfere with each other and interfere with each other, and the road screen cannot be seen. The POI icons displayed on the lower layer are hidden behind the POI icons displayed on the upper layer. In this case, the necessary POI icons can be clearly displayed and adjusted in various ways by not displaying unnecessary types of POI icons for a predetermined area. An object of the present invention is to provide a facility icon display adjustment map display device.

  In order to solve the above problems, the facility icon display adjustment map display device according to the present invention uses a facility icon display processing unit for displaying a facility icon on a map screen to be displayed, and a map screen region designated by a user. The facility icon display processing unit performs a process of not displaying a predetermined type of facility icon in the region designated by the user when the facility icon is displayed on the full screen. Alternatively, when a facility icon is not displayed on the entire screen, a process of displaying a predetermined type of facility icon in an area designated by the user is performed.

  Further, another facility icon display adjustment map display device according to the present invention is the facility icon display adjustment map display device, wherein the processing for not displaying the icon of the predetermined type of facility or the icon of the predetermined type of facility is displayed. The processing to be performed is characterized in that display processing in a plurality of stages is performed according to the number of instructions of the user.

  Further, the other facility icon display adjustment map display device according to the present invention is the facility icon display adjustment map display device, wherein the display processing of the plurality of stages is performed in the region detected by the user instruction region detection unit, It is characterized in that it is performed in the order of the type with the most facilities or the type with the few facilities.

  In another facility icon display adjustment map display device according to the present invention, in the facility icon display adjustment map display device, the last stage of the display process of the plurality of stages is a process of not displaying an icon of a predetermined type of facility. All facility icons are not displayed when performing, or all types of facilities are displayed when processing for displaying icons of predetermined types of facilities is performed.

  Further, another facility icon display adjustment map display device according to the present invention is the facility icon display adjustment map display device, wherein the processing for not displaying the icon of the predetermined type of facility or the icon of the predetermined type of facility is displayed. The map display by this processing is characterized by returning to the original facility icon display after a predetermined time.

  Since the present invention is configured as described above, the POI icons displayed on the map interfere with each other and interfere with each other, and the road screen cannot be seen, and the POI icons displayed in the lower layer are displayed in the upper layer. It is possible to solve the problem of being hidden behind the POI icon. At that time, a POI icon is displayed in a type that does not need to be displayed for a predetermined area, so that a necessary POI icon can be clearly displayed and adjusted in various ways.

It is a functional block diagram of the Example of this invention. It is an operation | movement flowchart which performs the basic process of this invention. It is a detailed operation | movement flowchart of this invention. It is an operation | movement flowchart which performs the process of step S22 of FIG. It is a figure which shows the example of a display of the Example of this invention. It is a figure which shows the other example of a display of the Example of this invention. It is a figure which shows the other example of a display of the Example of this invention. It is a figure which shows the other example of a display of the Example of this invention. It is a figure which shows the example of POI display processing.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a functional block diagram of an embodiment of the present invention, and a POI (Point of Interest) icon (facility icon) display mode selection unit 1 shown in FIG. 1 reads from a map / information data recording medium for display on a current map. For each type of facility data, a mode in which the POI icon of the facility is actually displayed on the map is selected, and a full map screen full display mode 2 and a full map screen full erase mode 5 are included therein. ing.

  In the all map screen display mode 2, in the map displayed on the current monitor screen, all POI icons are displayed in principle in all areas on the map. In the all-erasing mode 3 in the designated area, when the POI icon is displayed on the entire screen as described above, for example, when the user performs an operation of tracing a specific area of the monitor screen with a finger, For the area where the operation is performed or the instruction area which is surrounded by the operation, the display mode of the POI icon which deletes all the POI icons is performed. Therefore, all the POI icons are displayed in the area other than the instruction area.

  In the display area partial deletion mode 4 in the entire display mode 2 of the entire map screen, when the POI icon is displayed on the entire screen as described above, the POI icon in the area specified by the user is specified, for example, as a restaurant. The mode which deletes the kind of facility is performed. In that case, when the user designates the same area a plurality of times as will be described later, the POI icon display is gradually erased in the order of the type of facility determined in advance according to the number of times. You can also

  In the all map screen all deletion mode 5, in the map displayed on the current monitor screen, the POI icon is not displayed in all areas on the map in principle, that is, all the screens are deleted. In the indication area all display mode 6 among them, when the POI icon is not displayed on the entire screen as described above, for example, when the user performs an operation of tracing a specific area of the monitor screen with a finger or the like, The display mode of the POI icon that displays all the POI icons is performed for the area where the operation is performed or the instruction area that is surrounded by the operation. Therefore, all the POI icons are not displayed in the area other than the instruction area.

  The partial display mode 7 in the designated area in the all-screen-screen-all-erasing mode 5 is a specific display such as a restaurant for the POI icon in the area designated by the user when the POI icon is not displayed on the entire screen as described above. A mode for displaying types of facilities is performed. In that case, when the user designates the same area a plurality of times as will be described later, the POI icon display is set to be gradually increased in the order of the types of facilities determined in advance according to the number of times. You can also.

  In the POI icon display mode selection unit 1, the user selects and uses one of the various modes as described above, and the entire screen in the map screen currently displayed by the user in principle. Select whether to display all POI icons or, in principle, not to display all POI icons on all screens, and select various modes as described above. Keep it. However, do not display all POI icons on the full screen, do not display some facility icons, and do not display all the POI icons on the full screen. It is also possible to display the facility icon.

  As described above, when the user traces a specific area while the map is being displayed using the monitor with a touch panel function, for example, the user instruction area detection unit 8 detects that the traced area is the designated area. Alternatively, when it is understood that the traced portion indicates a closed region portion such as a circle or an ellipse, the entire region is detected as the pointing region. In addition, when the user designates an area, for example, an operation such as surrounding a specific area with a cursor may be detected, and the area can also be specified by specifying a specific area.

  The POI icon (facility icon) display processing unit 11 performs processing so that the POI icon can be displayed in the mode selected here by the output of the POI icon display mode selection unit 1, and the entire map screen in the POI icon display facility selection unit 1 The display processing unit 12 performs a process of displaying all POI icons on the entire map screen. Further, the all-erasure processing unit 13 in the designated area performs a process of erasing all POI icons in the designated area detected by the user designated area detection unit 8.

  In the designated area partial erasure processing unit 14, for the designated area, for example, a process of not displaying only an arbitrary type of facility such as a restaurant or a convenience store is performed. In the illustrated example, the partial erase first mode 15 is included therein. 3 shows an example provided with three types of modes, that is, a second partial erase mode 16 and a third partial erase mode 17.

  In these aspects, for example, in the partial erasure first aspect 15, from the state where the entire map screen full display processing unit 12 first performs processing, the user instruction area detection unit 8 allows the user to specify a specific on the map screen. When it is detected that an area has been designated, for example, the POI icon of the restaurant is deleted for that area. Then, when it is detected that the same area is further indicated, as the second mode 16 of partial deletion, for example, the POI icon of the coffee shop is deleted, and when the same area is detected, that is, the same area is indicated three times. For example, it is possible to set the partial deletion third mode 17 to delete the POI icon at a convenience store, for example. Such processing is easily performed without any processing burden by not displaying some facilities in the display order instruction as shown in FIG. 9C which has been conventionally performed. be able to.

  In addition to the three types of aspects shown in the figure, the in-instruction area partial erasure processing unit 14 may include only the first aspect, or may include only the first and second aspects. Furthermore, it goes without saying that a number of aspects such as a fourth aspect, a fifth aspect,... May be provided.

  The all map screen all erasure processing unit 18 performs a process of not displaying all the POI icons on the entire map screen displayed on the monitor. Further, the entire indication area display processing unit 19 performs a process for displaying all POI icons in the area of the indication area detected by the user indication area detection unit 8.

  The instructed area partial display processing unit 20 performs processing for displaying only an arbitrary type of facility such as a restaurant, a convenience store, or a public facility for the indicated area. The example provided with three types of aspects, the 1st aspect 21, the partial display 2nd aspect 22, and the partial display 3rd aspect 23, is shown.

  In these aspects, for example, in the partial display first aspect 21, from the state where the all-map screen all-erasure processing unit 18 first performs processing, the user instruction area detection unit 8 allows the user to specify a specific on the map screen. When it is detected that an area has been designated, a predetermined type of facility icon is displayed for the area, for example, a POI icon of a public facility is displayed. After that, when it is detected that the same area is further indicated, the partial display second mode 22 is displayed as, for example, a restaurant POI icon, and when it is detected that the same area is indicated, that is, the same area is indicated three times. When it is detected, the partial erasure third mode 23 can be set to display, for example, a POI icon at a convenience store.

  In addition to the three types of aspects as shown in the figure, the in-instruction area partial display processing unit 20 may include only the first aspect, or may include only the first and second aspects. Furthermore, the fourth aspect, the fifth aspect,... And a large number of aspects may be provided in the same manner as the instructed area partial erasure processing unit 14.

  The POI icon display output unit 24 outputs the POI icon subjected to the display process by the POI icon display processing unit 11, and displays the POI icon on the map screen or performs an output without displaying it. Thereby, from the display mode as shown in FIG. 1B showing a part of the display example described later, when the user designates the area with a finger or the like on the monitor, the area as shown in FIG. Can display a specific facility deleted.

  FIG. 2 shows an operation flow diagram for performing basic operations for carrying out the present invention. In the POI icon display process shown in FIG. 2, the map screen is initially displayed (steps). S1), it is determined whether or not the user has performed an instruction operation for a predetermined area on the display map (step S2). If it is determined that the instruction operation has not been performed yet, the process returns to step S1 to continue the predetermined map display.

  When it is determined in step S2 that the user has performed an instruction operation on a predetermined area on the display map, it is determined whether or not the POI icon is currently being displayed (step S3). If it is determined that the POI icon is currently being displayed, the POI icon in the area where the user has performed an instruction operation is deleted (step S6). If it is determined in step S3 that the POI icon is not currently being displayed, the POI icon in the area where the user has performed an instruction operation is displayed (step S5).

  After performing the process of step S4 and the process of step S5, in the illustrated embodiment, it is determined whether or not a predetermined time has elapsed (step S6). When the predetermined time has not yet elapsed, the operation of step S4 is performed. When the operation is being performed, the operation of step S4 is continued again. When the operation of step S5 is being performed, the operation of step S5 is continued again. Thereafter, when it is determined that a predetermined time such as 3 minutes has elapsed, the POI icon display is returned to the original display state (step S7). Therefore, when the POI icon is being displayed, the mode is returned to the mode where all the POI icons are displayed, and when the POI icon is not displayed, the mode is switched back to the mode where all the POI icons are not displayed.

  In the basic operation as described above, for example, when all the POI icons are displayed on the entire map screen as shown in FIG. 5A, in the downtown area where many buildings are built in front of Naniwa Station, There are many facilities, mainly restaurants, so that the POI icons of each other cannot be distinguished, and the road is not visible. Therefore, even if it is going to drive to this area from now on, it is in the display state which does not know how to go.

  When the user traces the ellipse A with his / her finger on the monitor screen and designates the area from such a state, the POI icon in the area is deleted as shown in FIG. It becomes possible to see clearly. Further, when the ellipse B in FIG. 6A is traced, the POI icon in that area is deleted as shown in FIG. 5C, and the road condition can be clearly seen. These processes are performed by erasing the POI icon in the area where the user has performed an instruction operation in step S4 when it is determined in step S3 in FIG. 2 that the POI icon is currently being displayed. An example in which the above processing is applied to an actual navigation apparatus is shown in FIG. This example shows the state of the city of New York. By designating the area A in FIG. 11A, the POI icon in the designated area is deleted as shown in FIG. I understand that

  On the other hand, for example, when the area A is instructed as described above without displaying the POI icon on the entire map screen as shown in FIG. 6A, the area as shown in FIG. When the part POI icon is displayed and the area B part is designated, the POI icon of the area part can be displayed as shown in FIG. If the region B is further designated while the POI icon of the region A is displayed, both can be displayed.

  FIG. 3 shows an example in which the POI icon can be displayed and hidden in various modes based on the basic operation shown in FIG. In the same way as 2 (step S11), it is determined whether the user has performed an instruction operation for a predetermined area on the display map (step S12), and it is determined that the instruction operation has not been performed. Sometimes, the process returns to step S11 to continue displaying the predetermined map screen. When it is determined in step S12 that the user has performed an instruction operation on a predetermined area on the display map, it is determined whether or not the map screen is in a POI icon display mode (step S13). These operations are also the same as those shown in FIG.

  When it is determined in step S13 that the POI icon is displayed, it is determined whether or not the instruction operation for the predetermined area on the display map performed by the user in step S12 is the first instruction operation in the instruction operation area portion. It discriminate | determines (step S14). When it is determined that the operation is the first instruction operation, the first stage erasing process of the POI icon is performed (step S15). As the first stage erase process at this time, an arbitrary process can be set in advance. For example, from the state where all the POI icons as shown in FIG. 6A are displayed, the first stage erase process is performed. For example, the restaurant POI icon can be set to be erased as shown in FIG.

  Thereby, it is possible to display the road in an easy-to-see manner from the state where the road is difficult to see due to the large number of restaurants in this area. Note that the first-stage erasure process can be determined in advance as a restaurant POI icon as described above, but in addition to that, the POI icon of the most types of facilities in that area should be set in advance. Thus, it is possible to perform a more appropriate stepwise deletion process of the POI icon. In this process, since the POI icon display mode of the partial erase 4 in the designated area in FIG. 1 is selected, the partial erase process 14 in the designated area is executed in the POI icon display processing unit 11, and in particular, This is performed by performing the process of the partial erasure first aspect 15.

  In the example of FIG. 3, when it is determined in step S14 that the instruction operation area is not the first instruction operation, the process proceeds to step S16 to determine whether or not the instruction operation area is the second instruction operation. Here, when it is determined that the operation is the second instruction operation, that is, when it is determined that the user has instructed the same area in the state where the first-stage erasing process shown in FIG. As shown in FIG. 2B, a second-stage erasure process such as erasing the coffee shop POI icon is performed. This process is performed in the second partial erase mode 16 of FIG. Also in this process, when the POI icons having the largest number of facilities are set to be deleted in order in the designated area as described above, the POI icons of the second largest facility are deleted.

  When it is determined in step S16 that the instruction operation area is not the second instruction operation, the process proceeds to step S18 to perform the third stage erasing process of the POI icon. In this process, for example, it is possible to set to delete POI icons of other types of facilities. However, in addition to this, the third mode of partial erasing is used as the mode of erasing processing at the final stage, for example, FIG. As shown in b), it is possible to set to delete all POI icons. This process is performed in the third partial erase mode 17 of FIG. In this case as well, it is possible to set so that the POI icon of the third most common facility can be deleted.

  After performing the first stage erasing process of the POI icon at step S15, the second stage erasing process of the POI icon at step S17, and the third stage erasing process of the POI icon at step S18, the process proceeds to step S19. It is determined whether or not the time has elapsed, and when it is determined that the predetermined time has not yet elapsed, it is determined whether or not the user has performed an instruction operation for a predetermined area on the display map (step S20).

  If it is determined that the instruction operation has not been performed yet, the display is continued until a predetermined time has elapsed. When the user separately instructs to forcibly end such display, the same processing as when a predetermined time has elapsed is performed. When it is determined that the user has performed an instruction operation on a predetermined area on the display map, the process returns to step S14 to determine whether or not the instruction operation area is the first instruction operation. At that time, for example, even when the display is performed by the third stage erasing process of the POI icon in step S18, when the user performs an instruction operation for another area, it is determined whether or not the area is the first, The same operation as described above can be repeated.

  When it is determined in step S19 that the predetermined time has elapsed, the process proceeds to step S21 to perform processing for returning the POI icon display to the original display state, and then returns to step S11 to repeat the above operation. The determination of whether or not the predetermined time has elapsed in step S19 is performed by determining whether or not a predetermined time such as 3 minutes has elapsed since the last processing in each instruction operation area. May be.

  When it is determined that the map screen in step S13 is not in the display mode of the POI icon, the process proceeds to step S22, and the display process of the POI icon in the area where the user performs an instruction operation as shown in FIG. That is, in the example of the POI icon display process in the area where the user has performed the instruction operation shown in FIG. 4, the POI icon deletion process in the area in which the user has performed the instruction operation after step S14 in FIG. The same operation is performed. First, it is determined whether or not the instruction operation area is the first instruction operation (step S31). When it is determined that the operation is the first instruction operation, the first stage display of the POI icon is performed. Processing is performed (step S32).

  Here, the display process of the first stage can be performed in an arbitrary manner. For example, as shown in FIG. 7C, only the POI icon of the restaurant can be displayed. Also in this case, for example, it is possible to set the order in which the number of facilities is large or small in the area, as in the case shown in FIG. This processing is performed in the partial display first mode 21 in the in-instruction area partial display processing unit 20 of FIG.

  When it is determined in step S31 that the instruction operation area is not the first instruction operation, the process proceeds to step S33 to determine whether or not the instruction operation area is the second instruction operation. When it is determined that there is a POI icon, a second stage display process is performed (step S34). If it is determined in step S33 that the instruction operation area is not the second instruction operation, the third stage display process of the POI icon is performed in step S35. Since the second stage display process and the third stage display process can be performed in the same manner as described above, detailed description thereof will be omitted.

  After performing the processes of steps S32, S34, and S35, the process proceeds to step S36, where it is determined whether or not a predetermined time has elapsed, and when it is determined that the predetermined time has not yet elapsed, the user displays the display map. It is determined whether or not an instruction operation for the predetermined area has been performed (step S37). If not, the process returns to step S36 to repeat the operation. If it is determined that the operation has been performed, the process returns to step S31 and the subsequent operations are performed. repeat. If it is determined in step S36 that the predetermined time has elapsed, the POI icon display is returned to the original display state (step S38), and the process returns to step S11 in FIG. 3 (step S39).

  According to the present invention, processing is performed by the basic operation shown in FIG. 2, so that a desired display area as disclosed in the above-mentioned prior patent document 1 is specified, and only facilities in the specified area are extracted and displayed. This technology solves the problem that it is not possible to clearly display the road that is hidden by the facility display only in a specific area when you want to display all the facilities in the entire area. can do. Furthermore, in the present invention, a POI icon of an arbitrary facility can be displayed or deleted in a specific area, and can be displayed or deleted in a plurality of stages, so that various POI icon display processes can be performed.

DESCRIPTION OF SYMBOLS 1 POI icon display mode selection part 2 All map screen all display modes 3 All deletion in instruction area 4 Partial deletion in instruction area 5 All deletion in all map screen 6 All display in instruction area 7 Partial display in instruction area 8 User instruction area Detection unit 11 POI icon display processing unit 12 Full display on all map screen 13 All deletion within designated area 14 Partial deletion within specified area 15 Partial deletion first mode 16 Partial deletion second mode 17 Partial deletion third mode 18 All map screen full deletion 19 Indication area full display 20 Indication area partial display 21 Partial display 1st stage 22 Partial display 2nd stage 22 Partial display 3rd stage 24 POI icon display output unit 25 Monitor

Claims (5)

A facility icon display processing unit for displaying facility icons on the map screen to be displayed;
A user instruction area detection unit that detects an area of the map screen indicated by the user;
In the facility icon display processing unit, when the facility icon is displayed on the entire screen, the facility icon display processing unit performs a process of not displaying a predetermined type of facility icon in the area designated by the user, or displays the facility icon on the entire screen. A facility icon display adjustment map display device that performs processing for displaying an icon of a predetermined type of facility in an area designated by a user when not displayed.   2. The process of not displaying the icon of the predetermined type of facility or the process of displaying the icon of the predetermined type of facility performs a display process in a plurality of stages according to the number of instructions of the user. Facility icon display adjustment map display device.   3. The facility icon display adjustment according to claim 2, wherein the display processing of the plurality of stages is performed in the order of the type with the most facilities or the type with the few facilities in the region detected by the user instruction region detection unit. Map display device.   The last stage of the display process of the plurality of stages is a process of not displaying all the facility icons when performing the process of not displaying the icons of the predetermined types of facilities, or displaying the icons of the predetermined types of facilities. 3. The facility icon display adjustment map display device according to claim 2, wherein all types of facilities are displayed when performing the facility icon display.   The map display by the process of not displaying the icon of the predetermined type of facility or the process of displaying the icon of the predetermined type of facility is returned to the original facility icon display after a predetermined time. Facility icon display adjustment map display device.

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