JP3168821B2 - Map data display method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a map data display method and apparatus for displaying an image of map graphic data on a display of a portable information terminal or the like and displaying data such as a prefecture name or a station name on the image.

[0002]

2. Description of the Related Art When displaying a map image on a display of such a terminal device, note data such as station names, road names, prefecture names, city names, town names, and street addresses are displayed on the map image in the same manner as a printed map. It is projected with.

[0003] In the display of such an annotation data, in the case of a printed map, there are many types of characters in size, and even small characters can be printed. Can be prevented.

However, when displaying on a display of an information terminal device, the size of the character itself is limited, and when displaying an address, the map becomes extremely difficult to see. Such a problem is particularly problematic in a map image on a small screen such as a display screen in a portable terminal device.

[0005] For example, when an address or the like is projected on a display, a map of a road or the like is hidden, and does not substantially function as a map. To avoid this, if the display of addresses and the like is deleted, the map becomes easier to see, but, for example, the address of the area is not known, so that the map also does not function.

Further, detailed annotation data such as addresses are not necessary for the entire map displayed on the display. For example, it is only necessary to see the area desired to be viewed, for example, only the address in a desired town. It is not necessary to project the address of the town.

[0007] For this reason, on the map on the display, addresses of areas which are not required to be viewed are displayed, and the addresses of other areas are obstructive when searching for the position of a desired address.

[0008]

When an address or the like is projected on a small display screen as described above, a map of a road or the like is hidden at the address, and the map does not substantially function as a map. Further, if detailed annotation data such as addresses are displayed on the entire map on the display, even addresses that do not need to be displayed are displayed, which hinders the search for the position of a desired address.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a map data display method and a map data display method capable of displaying only detailed annotation data such as a desired address on a display and improving the function as a map.

[0010]

According to a first aspect of the present invention, there is provided a map data display method for displaying main annotation data on a display at a map position corresponding to the map graphic data and the map graphic data .
When the display specification of the note data that is more detailed than the main note data is specified from the note data required , this display specification is made.
Map of detailed note data only for the main note data part
This is a map data display method for achieving the above object by superimposing on shape data and projecting it on a display.

According to the second aspect, the detailed annotation data is used as the lower concept data with respect to the main annotation data, and the upper and lower ranges of the data to be displayed on the display of the main annotation data and the detailed annotation data are determined according to the map scale. Have changed.

According to the third aspect, the main note data is at least a prefecture name, a city name, or a town name. According to claim 4, the detailed note data is at least an address.

According to the fifth aspect, the detailed annotation data of only the area corresponding to the main annotation data indicated to be displayed is displayed on the display. According to a sixth aspect of the present invention, there is provided a map data display device for displaying main annotation data on a display at a map position corresponding to the map graphic data and the map graphic data, wherein a detailed memory for storing detailed annotation data more detailed than the main annotation data; Projected on the display
If the display of detailed note data is specified from the main note data specified, the main note data for which this display is specified is specified.
The detailed annotation data of only the data part is read from the detailed memory.
This detailed note data is superimposed on the map figure data.
And a detailed note data display means for displaying the annotation data on a display.

According to the present invention, the detailed annotation data is used as subordinate data with respect to the main annotation data, and the upper and lower ranges of the data to be displayed on the display of the main annotation data and the detailed annotation data are determined according to the map scale. To change.

According to claim 8, the main note data is at least a prefecture name, a city name, or a town name. According to claim 9, the detailed annotation data is at least an address.

According to the tenth aspect, when the display of the detailed note data is specified, the detailed note data display means displays the detailed note data only in the area corresponding to the designated main note data on the display. .

[0017]

According to the first aspect, while the map graphic data and the main note data are projected on the screen corresponding to the map graphic data on the display, the display designation of the detailed note data more detailed than the main note data is performed. When done, this
Details of only the main note data part specified to be displayed
The annotation data is superimposed on the map graphic data and projected on the display.

Therefore, the display of the detailed note data is designated only when necessary, and the main
Detailed annotation data only for the annotation data
Will be projected on the display.
According to the second aspect, the upper and lower ranges of the main note data and the detailed note data are changed according to the map scale.

In this case, according to the third aspect, at least the name of a prefecture, a city, or a town is displayed as the main annotation data, and according to the fourth aspect, at least the address is displayed as the detailed annotation data.

According to the fifth aspect, the detailed note data of only the area corresponding to the main note data designated to be displayed is displayed on the display. According to the sixth aspect, when the map graphic data and the main note data are displayed on the display, the main figure displayed on the display is displayed.
It has been made display specification of detailed annotation data from the annotation data
Then, the part of the main note data specified for this display
Reads the detailed note data from the detail memory
Fine Note data superimposed on the map graphic data be out transferred to a Disupu <br/> Rei.

According to the seventh aspect, the main note data and the detailed note data are displayed on the display with the upper and lower ranges changed according to the map scale. In this case, according to claim 8, the main note data is displayed as at least a prefecture name, a city name, or a town name, and according to claim 9, the detailed note data is displayed as at least an address.

According to the tenth aspect, when the display of the detailed note data is designated, the detailed note data display means projects the detailed note data of only the area corresponding to the main note data designated for display on the display.

[0023]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of a map data display device applied to a portable information terminal. The main control unit 1 composed of a CPU is connected to a map graphic data memory 2, a main memory 3, and a detailed memory 4, and a display 6 via a display driving unit 5.

The map graphic data memory 2 stores a map of a predetermined scale as whole map graphic data. The size of the entire map graphic data is formed to be several tens of times the data size displayed on the screen of the display 6.

The whole map graphic data does not include data such as a prefecture name, a city name, and a road name unlike a print map. The main memory 3 stores main note data, such as station names, road names, prefecture names, city names, town names, etc., to be superimposed on the map graphic data and projected on the display 6. The main note data has coordinates for the display screen in order to project station names, road names, and the like at predetermined positions on the map graphic data.

The detailed memory 4 stores note data more detailed than the main note data, for example, addresses in towns. The detailed note data is formed of data of a lower concept than the main note data. For example, as shown in FIG. 2, addresses in the town No. 1, for example, 1-1-1, 1-1-2,. Are stored, and the display coordinates (x1, y1), (x
1, y2),... Are stored.

An input unit 7 is connected to the main control unit 1, and a graphic data display unit 8, a main data display unit 9, and a detailed data display unit 10 operate in response to a command from the main control unit 1. It has become something.

The input unit 7 includes a cursor key 11 for moving an index (tap) and a cursor on the screen of the display 6, and a display switching key for changing an area of map graphic data displayed on the screen of the display 6. 1
2, and a detailed data instruction key 13 for giving an instruction to project the detailed annotation data on the screen of the display 6 are connected.

The graphic data display section 8 reads out map graphic data having a size corresponding to the screen size of the display 6 from the entire map graphic data stored in the map graphic data memory 2, and displays this map graphic data. 5 and has a function of displaying it on the display 6.

The main data display unit 9 reads main note data corresponding to the map graphic data displayed on the display 6 from the main memory 3 by the graphic data display unit 8 and sends the main note data to the display drive unit 5. Display 6 showing map graphic data
It has the function of superimposing and projecting it on the above image.

When the detailed data instruction key 13 is operated, the detailed data display section 10
Has the function of reading the street name specified by the index on the screen of the above, reading the street address of this street name from the detailed memory 4, sending this street address to the display drive unit 5, and superimposing it on the image on the display 6. I have.

The detailed data display section 10 has a function of canceling the display of the address read from the detailed memory 4 when the map graphic data displayed on the display 6 is changed.

Next, the operation of the apparatus configured as described above for displaying a map will be described. The main control unit 1 issues an operation command to the graphic data display unit 8 and the main data display unit 9.

In response to the operation command, the graphic data display section 8
Reads the map graphic data of the area designated by the cursor 14 from the map graphic data memory 2 and sends the map graphic data to the display drive unit 5 to display the map graphic data on the display 6. FIG. 3 shows the display 6
3 shows map graphic data shown in FIG.

At the same time, the main data display section 9 reads main note data corresponding to the map graphic data of the area shown on the display 6, for example, station names, road names, prefecture names, city names, and town names from the main memory 3, The main annotation data is sent to the display drive unit 5 so as to be superimposed and displayed on the display 6 on which the map graphic data is displayed.

FIG. 4 shows main annotation data displayed on the display 6. In this case, the main note data is displayed as a town, a town, a town, a town, and a town.

In order to display the details of, for example, XX town in the display state of such a map image, the cursor key 11 is operated, and the index Q on the display screen is changed to the vicinity of the top of XX town as shown in FIG. Moved to

In this state, when the detailed data instruction key 13 is operated, the detailed data display section 10 judges the operation of the detailed data instruction key 13, and at this time, it is instructed by an index on the screen of the display 6. Read the name of the town where it is, that is, XX town.

Next, the detailed data display unit 10 reads out the address in the XX town from the detailed memory 4 and sends this address to the display driving unit 5 to display the address on the display 6.
Projected on.

As a result, as shown in FIG. 5, the display 6 displays 1-chome to 3-chome in the town XX, and addresses 1, 2, 3, and 3 in these 1-chome to 3-chome.
... is projected. The address is not displayed for the △△ town, the XX town, and the XX town other than the designated ○ town.

If the cursor key 11 is operated and the index Q on the display screen is moved to the vicinity of the head of the town, the detailed data display unit 10 displays the address of the town in the same manner as described above. By reading the address from the memory 4 and sending the address to the display drive unit 5, the display 6
Projected on.

As a result, the display 6 shows
Δ For example, 1-chome to 4-chome in the town is displayed, and addresses 1, 2, 3, and 4 in these 1-chome to 4-chome are displayed.
... is projected.

As described above, in the embodiment, the map graphic data and the main note data are displayed on the screen corresponding to the map graphic data on the display 6, and the detailed note data more detailed than the main note data is displayed. Is designated, the detailed note data is read out from the detailed memory 4 and projected on the display 6, so that only the desired street address can be projected on the map image on the display 6 in a superimposed manner. The user can know the address of the desired town in detail, and can immediately search for the position of the address of the town.

Further, since the detailed note data is not displayed over the entire map, roads and the like are not hidden by the detailed note data, and can be clearly functioned as a map, and data of only necessary areas can be displayed. As a result, the user can fully use the function as a map.

Therefore, the user can easily and clearly recognize a desired area by looking at the map in two ways, ie, displaying only the main note data and displaying the detailed note data.

The present invention is not limited to the above-described embodiment, but may be modified as follows. For example, in the above-described embodiment, the name of a prefecture, a city, or a town is used as the main note data, and the address is used as the detailed note data.These main note data and the detailed note data are as follows according to the scale of the map. It may be changed as follows.

For example, a map of Japan as main note data, a city name as detailed note data, and a prefecture name may be designated to project the city name. Alternatively, a map of the entire prefecture may be used as the main note data, and a city name may be used as the detailed note data, and the city name may be designated to reflect the town name.

Further, the main note data and the detailed note data may be designed such that an area name is designated and a target object name (additional information as necessary) is displayed according to the purpose. For example, the name of the resident in the town is displayed by specifying the town name. In this case, in the normal display without specifying the detailed note data, display or no display of the outline of the house is selected, and when the detailed note data is specified. In the designated display, the last name of the person who lives in the house may be displayed.

Further, display examples of the main note data and the detailed note data may be changed as listed below. For example, (a) Designate the name of the street and display the name of the restaurant in the town (or the type of restaurant). In this case, the restaurant is displayed as a symbol or not in the normal display, and the restaurant name is displayed in the designated display. (Charges, dishes, etc. may be added) are displayed. (b) Specify the city name to display the name of the park in the city,
In this case, in the normal display, the park is displayed by a symbol or no, and in the designated display, the park name is displayed. (c) Specify the city name and display the parking lot name in the city. In this case, the normal display indicates that the parking lot is displayed with or without a symbol, and the designated display indicates the parking lot name (fee, May be added). (d) Specify the city name and display the name of the accommodation in the city. In this case, in the normal display, the accommodation is displayed with a symbol or without, and in the designated display, the name of the accommodation (with additional fees etc.) May be displayed). (e) Specify the city name to display the school name in the city,
In this case, in the normal display, the school is displayed with or without a symbol, and in the designated display, the school name is displayed. (f) Specify the name of the prefecture and display the name of the port in the prefecture. In this case, the port is displayed as a symbol or not in the normal display, and the port name is displayed in the specified display (the equipment contents etc. may be added). indicate. (g) Specify the name of the mountain and display the name of the mountain hut in Yamauchi.In this case, in the normal display, the mountain hut is displayed with or without a symbol, and in the designated display, the name of the mountain hut (even if the capacity, equipment details, etc. are added) Good) to display. (h) Designate a road name to display gas stations along the road (only gas station symbols may be used), restaurant names, and tourist attraction names. In this case, in the normal display, the gas station, restaurant name, tourist attractions are displayed or not with each symbol, and in the designated display, the gas station (only the gas station symbol may be used), restaurant name, tourist attraction name (equipment content, main dishes) Etc. may be added). (i) Specify the station name and display the exit name of the station and the toilet (only the toilet symbol may be displayed). In this case, in the normal display, the exit of the station is displayed with or without a symbol, and in the designated display, the exit name of the station, the toilet (only the toilet symbol may be used)
Is displayed. (j) Lodging facilities (hotels), collective buildings, large retail stores (department stores), event facilities (baseball fields, amusement parks, halls),
By designating the station and the name of the government office, the names of these lodgings, collective buildings, large retail stores, event facilities, stations and restaurants in the government office are displayed.

In this case, in the normal display, the sign of the restaurant is displayed or not, and in the designated display, the name of the restaurant (a charge, a kind of dish, etc. may be added) is displayed. If a town name is specified as a display example of the main note data and the detailed note data, the address may be displayed so that the entire area of the town is surrounded by a line, and the display color of the town is changed. You may do so.

In this case, in addition to the detailed memory, a color memory for storing the town name and the corresponding color data is prepared. Then, when the detailed data instruction key 13 is operated, at this time, the name of the town indicated by the index is read on the screen of the display 6, and the address in this town name is read from the detailed memory 4 and projected on the display 6. A configuration is provided that includes color changing means for reading the color data of the corresponding town name from the color memory and changing the color projected on the display 6. By changing the display color of the designated town in this way, the boundary with the adjacent town becomes clear, and the break of the address existing near the boundary line becomes clear.

[0052]

According to the present invention, as described above in detail, according to the present invention, de
From the main note data shown on the display
Specify display of detailed note data such as required area
And only the region of the main note data specified for this display
The detailed note data, such as the address of the
Can be projected on the display,
It is possible to provide a map data display method and a map data display method capable of improving the function as a map without being hidden by the detailed note data .

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment when a map data display device according to the present invention is applied to a portable information terminal.

FIG. 2 is a schematic diagram of a detailed memory.

FIG. 3 is a diagram showing a display example of map graphic data.

FIG. 4 is a diagram showing an example of a normal display.

FIG. 5 is a view showing a display example of detailed annotation data.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main control part, 2 ... Map figure data memory, 3 ... Main memory, 4 ... Detailed memory, 5 ... Display drive part, 6 ...
Display 7, Input unit 8, Graphic data display unit 9,
... Main data display section, 10 ... Detailed data display section, 11 ...
Cursor keys, 12: display switching key, 13: detailed data instruction key

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-71879 (JP, A) JP-A-63-116187 (JP, A) JP-A-61-267778 (JP, A) 129480 (JP, A) JP-A-62-153887 (JP, A) JP-A-63-148378 (JP, A) JP-A-63-187288 (JP, A) JP-A-2-196275 (JP, A) JP-A-4-120584 (JP, A) JP-A-5-61405 (JP, A) JP-A-6-187422 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G06T 11/60 300 G06F 17/30 170

Claims (10)

(57) [Claims] 1. A map data display method for displaying main annotation data on a display at a map position corresponding to the map graphic data and the map graphic data, the main annotation data being projected on the display.
When the display specifying detailed annotation data is made than the main note data from among the data, said that the display instruction is made
The details Note the data of only the portion of the main note data
A map data display method, wherein the map data is projected on the display while being superimposed on map graphic data . Wherein the data of the subordinate concept of the detailed annotation data to the main note data, and changed in accordance with the range of the upper lower data to project the display of the main annotation data and detailed annotation data to the map scale The map data display method according to claim 1, wherein 3. The map data display method according to claim 1, wherein the main note data is at least a prefecture name, a city name, or a town name. 4. The map data display method according to claim 1, wherein the detailed note data is at least an address. 5. A display indicated the main note map data display method of claim 1, wherein the detailed annotation data area only, characterized in that to project the Display <br/> i corresponding to the data. 6. A map data display device for displaying main note data on a display at a map position corresponding to the map figure data and the map figure data, a detail memory storing detailed note data more detailed than the main note data, The key note data shown on the display
Display specification of the detailed notes data is made from, among other
And the part of the main note data specified for this display
Read only the detail note data from the detail memory
The detailed note data is superimposed on the map graphic data.
And a detailed annotation data display means for displaying the detailed annotation data on the display. 7. A data of the subordinate concept of the detailed annotation data to the main note data, and changed in accordance with the range of the upper lower data to project the display of the main annotation data and detailed annotation data to the map scale The map data display device according to claim 6, wherein: 8. The map data display device according to claim 6, wherein said main note data is at least a prefecture name, a city name, or a town name. 9. The map data display device according to claim 6, wherein said detailed annotation data is at least an address. Wherein said detailed annotation data display means, before the only areas corresponding to the main note data instructed to be displayed
Serial map data display device according to claim 6, wherein the detailed annotation data, characterized in that to project into the display.