JPH09134368A - Map display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a detailed map for roads or houses on a specific place required by a user by simple operation. SOLUTION: The name of a construction such as a building and a bridge is inputted as the name of a target, map data 61, 62 for roads and houses existing in an area around a position selected using the target name as a key and having a specified scale are acquired from a map data storing means and displayed. On the other way, the position of a display target is specified by latitude/longitude information e.g. instead of the name of the target and map data 61, 62 for roads and houses existing in an area around the position of the specified display target and having a specified scale are acquired from the map data storing means and displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a map display system for displaying a road map and a residential map, and more particularly to a map display system for displaying a map at a designated position in a designated size.

[0002]

2. Description of the Related Art A CD-R in which road map data and residential map data are divided and stored in units of road boundaries and administrative boundaries.
By using a storage medium such as OM and designating a region number, a lot number, a road number, etc., the map data of roads and houses at the designated place is read from the storage medium and displayed on the display screen. A map display system is proposed in Japanese Patent Laid-Open No. 1-287594.

Similarly, by using a storage medium such as a CD-ROM, a wide area map of a wide area is first displayed on a display screen, and then a specific area is specified by a pointing device, whereby the area is specified. JP-A-1-181159 proposes a map display system in which a detailed road map and a residential map in a specific range are read from the storage medium and displayed on a display screen.

[0004]

However, the map display system proposed in Japanese Unexamined Patent Publication No. 1-287594 is predetermined at a predetermined scale for a map including roads and houses at designated places. Since the range is displayed, the outline of the specified place can be grasped, but there is a problem that the details are difficult to understand.

On the other hand, in the map display system proposed in Japanese Patent Laid-Open No. 1-181159, detailed road maps and residential maps in a specified specific range can be displayed. If a person does not have a geographical knowledge of a place to see, there is a problem that it is troublesome to specify a specific range itself and the usability is not good.

An object of the present invention is to provide a map display system capable of displaying a detailed map of roads and houses at a specific place desired by a user by a simple operation.

[0007]

In order to achieve the above object, the map display system of the present invention provides a road map of a predetermined range and names, positions, display shapes and addresses of various buildings on this road map. Map data storage means for storing the data of the specified residential map, first input means for specifying the name of the target on the map, and second for specifying the size of the display area centered on the target. Data of the position and the display shape of the building corresponding to the name of the target object designated by the input means and the first input means is searched from the map data storage means, and the position data of the searched building is used to retrieve the data. The map data storage means is searched for position and display shape data relating to roads and surrounding buildings existing in an area of the size designated by the second input means with the position data as the central position. A search unit, and the retrieved target buildings surrounding roads, characterized in that a display means for displaying a peripheral building.

Further, a map data storing means for storing a road map in a predetermined range, data of a house map for specifying the names, positions, display shapes and addresses of various structures on the road map, and a display target position are displayed. A first input unit for designating, a second input unit for designating the size of the display area centered on the position of the display target, and a center position for the position of the display target designated by the first input unit. As a search means for searching the map data storage means for position and display shape data relating to roads and buildings existing in an area of the size designated by the second input means, and the searched roads and buildings. And a display means for displaying.

That is, the map display system of the present invention is
When you input the name of a building, bridge, etc. as a target name, use this target name as a key to display map data of roads and houses centered on the corresponding position and existing in an area of a specified size. The map data is acquired from the map data storage means and the map data is displayed.

Further, instead of the name of the target object, the position of the display target is specified by, for example, latitude / longitude information, and the position of the specified display target is set as the center position and the area of the specified size is set. The map data of existing roads and houses is acquired from the map data storage means and displayed.

Therefore, if the name of the target object or the latitude / longitude of the target position is known in the map of a certain administrative boundary, the area of the required size can be designated,
It is possible to easily display the detailed map of the target position.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a system configuration diagram showing an embodiment of the present invention. An input device 1 including a keyboard and a pointing device, a central processing unit 2, a program memory 4 storing a map display program 3, and a map. It comprises a display device 5 for displaying, a map graphic data 6 and a map database 8 storing the target object data 7.

The map graphic data 6 represents the data of a map in a predetermined range, for example, a road map in the range of one administrative boundary, a house map specifying the names and display shapes of various structures on this road map. Yes, FIG. 2 (a),
As shown in (b) and (c), wide area map graphic data 61 for displaying the entire range of one administrative boundary, and this wide area map is divided into a plurality of planes of a predetermined size, and each divided area It is composed of narrow area map graphic data 62 showing the details of the inside, and housing map data 63 showing the shapes of houses, roads, and various buildings in each divided area.

Also, the X coordinate on the map of each building,
The Y coordinate value is set.

On the other hand, the target object data 7 is data for specifying the name, position and address of each building on the road map, and as shown in FIG. 3, the address 72 of each building and the target object name 73. , Coordinates (X, Y), latitude / longitude 75, and other data 76.

Next, the map display operation of the map display system configured as described above will be described with reference to the flowchart of FIG.

First, the map display program 3 of the system is activated to display the map search screen 51 as shown in FIG.

The map search screen 51 is provided with input areas for designating a map type, an address, a latitude / longitude, a vertical width and a horizontal width of a designated area, and a search character string.

Therefore, assuming that the target building is, for example, "Toei apartment" in 1-chome, Arakawa-ku, Tokyo, first, from the input device 1, "map type" = "house map"
Is designated (step 41).

Next, the position on the map desired to be displayed in detail is designated by the input device 1 (step 42). As the position on the map, there are three methods of inputting (1) address, (2) latitude / longitude, and (3) name of target building.

Then, for example, the address = “1-chome, Arakawa-ku, Tokyo” is input from the input device 1.

Next, the vertical width of the area on the map to be displayed,
Regarding the width, for example, “length = 100 m, width = 100
m "is input from the input device 1 (step 43).

When a map search execution start command is input from the input device 1 in this state, the central processing unit 2 causes the designated address = the name 73 of the building existing in "Arakawa-ku, Tokyo" 72, coordinates 74, latitude / longitude 75,
Other data is retrieved and acquired, "Arakawa-ku, Tokyo 1-chome"
The name and the correct address of the building existing in are displayed on the search result screen 52 as shown in FIG.

In this state, when "Toei Arakawa 1-chome apartment" is selected on the search result screen 52 and the map generation command 53 is designated by the pointing device, the central processing unit 2 causes the coordinates 74 of "Toei Arakawa 1-chome apartment" or 74. Based on the latitude / longitude 75 data, the map graphic data 6 is searched for graphic data representing the shapes of roads and buildings existing in "100 m square" centering on the position of "Toei Arakawa 1-chome apartment". (Step 44), "Toei Arakawa 1-chome apartment" is displayed on the display device 5 so that it is almost in the center of the display screen (display window) (step 45).

FIG. 6 is a display example of "100 m square" roads and buildings centering on "Toei Arakawa 1-chome apartment" which is the designated position.

Although a wide area map 61 is shown in FIG. 6, a map 62 at a designated position is a wide area map 61.
The wide area map 61 is not displayed.

In this case, as shown in another display example of FIG. 7, a window 63 having a predetermined size is generated at a corresponding position in the wide area map 61, and the map at the designated position is displayed in this window 63. It is also possible.

In the above description, an example in which the peripheral map of the corresponding building is displayed by inputting the address of the target object has been described. However, in the target object data 7, the latitude / longitude 75 of the target object is displayed. Since the data of the target is registered, by inputting the latitude / longitude data of the target on the search screen 51 of FIG. 5A, the specified target is centered and the specified Xm square A map in the range (for example, X = 100 m square) can be displayed.

Further, when the character string "Toei Arakawa Apartment" which is the target is input from the input device 1 on the map search screen 51, the central processing unit 2 causes the target data 7
From within, read the data of coordinates 74 and latitude / longitude 75 in the entry having the target name 73 of “Toei Arakawa 1-chome apartment”, and based on the data of coordinates 74 or latitude / longitude 75, “Toei Arakawa 1-chome apartment” Searching for graphic data representing the shapes of roads and buildings existing in the specified range of "100 m square" centering on the position "" from within the map graphic data 6, "Toei Arakawa 1-chome apartment" is displayed on the screen. It is displayed on the display device 5 so as to be substantially at the center of the (display window).

If a "wide area map" is specified instead of the "residential map" on the map search screen 51, the road and the building located at the position specified by the wide area map graphic data 61 are centered and specified. A road or a building of a size range, for example, 1 km square is searched and displayed.

[0032]

As described above, according to the map display system of the present invention, the name of a building such as a building or a bridge is input as a target object name, and the target object name is used as a key to center the corresponding position. , And obtain the map data of roads and houses existing in the designated area from the map data storage means,
The map data is displayed, or instead of the name of the target, the position of the display target is specified by latitude / longitude information, and the position of the specified display target is set as the center position and the specified size is set. Since the map data of roads and houses existing in the area are displayed from the map data storage means and displayed, it is easy to understand if the target name or the latitude / longitude of the target position is known in the map of a certain administrative boundary. A detailed map of the target position can be displayed in the range specified by the user and presented to the user.

In particular, since the user can specify the display range, a variety of map reference forms such as detailed maps and schematic maps are available in the wide area map, the narrow area map, or the residential map, and complicated operation is possible. It is possible to present a map corresponding to an area of a specified size without going through.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram showing an embodiment of the present invention.

FIG. 2 is a configuration diagram of map graphic data.

FIG. 3 is a configuration diagram of target object data.

FIG. 4 is a flowchart showing a procedure of map display processing.

FIG. 5 is an explanatory diagram showing an example of a map search screen and a housing search result screen.

FIG. 6 is an explanatory diagram showing an example of a map displayed as a search result.

FIG. 7 is an explanatory diagram showing another example of a map displayed as a search result.

[Explanation of symbols]

1 ... Input device, 2 ... Central processing unit, 3 ... Map display program, 4 ... Program memory, 5 ... Display device, 6 ... Map graphic data, 7 ... Target data, 8 ... Map database, 61 ... Wide area map graphic data , 62 ... Narrow area map graphic data, 63 ... Housing map data.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Taka ▼ Minoru Sakisaki 6-81 Onoue-cho, Naka-ku, Yokohama-shi, Kanagawa Hitachi Software Engineering Co., Ltd. In-house

Claims (2)

[Claims] 1. A map data storage means for storing a road map within a predetermined range and data of a residential map for specifying the name, position, display shape and address of each structure on the road map, and a target object on the map. Corresponding to the name of the target object specified by the first input means, the second input means for specifying the size of the display area centered on the target object, The data of the position and the display shape of the building to be searched is searched from the map data storage means, and the position data of the searched building is used as the central position for the second data.
Search means for searching the map data storage means for position and display shape data relating to roads and surrounding buildings existing in the area of the size specified by the input means, searched target buildings and surrounding roads, A map display system comprising: a display unit for displaying surrounding buildings. 2. A map data storage means for storing a road map within a predetermined range and data of a residential map for specifying the name, position, display shape, and address of each building on the road map, and the position of the display target. First input means for designating, second input means for designating the size of a display area centered on the position of the display target, and a center position for the position of the display target designated by the first input means. The search means for searching the map data storage means for position and display shape data relating to roads and buildings existing in the area of the size designated by the second input means, and the searched roads and buildings. A map display system comprising: a display unit for displaying.