JPH1074253A - Map output system - Google Patents

Abstract

(57) [Summary] [Problem] Each local government in Japan has a stand-alone form of a detailed map database in which map information is reduced and coordinated in a computer for the purpose of using local development plans, asset evaluations, and resident services. However, there is a problem such as reduction of processing / output processing time unique to the user. A map output system in which a client device and a server device are connected by a communication line, wherein the client device outputs user-specific output control information when outputting map database information stored in the server device. A unique output information input means for providing the unique output information to the server device; and a receiving device for receiving the unique output information from the client device; and The object is solved by a map output system including processing means for processing stored map database information using the unique output information, and output means for outputting processed map database information processed by the processing means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for outputting map information represented by coordinate values by performing a user-specific processing such as hatching a certain portion.

[0002]

2. Description of the Related Art Local governments nationwide accurately grasp information on fixed assets of land for residential use and public asset information including underground buried objects such as roads, rivers or water and sewage systems in the administration within their jurisdiction. The map information is converted into a scale and coordinated in a computer and stored as a detailed map database.

When the information of this map database is output and used, it would be difficult to output all the information. For this reason, only the information required by the user is output according to the purpose of use, and at the same time, a certain portion is output. Processing such as coloring is generally performed.

[0004] Further, when a change occurs in the detailed map database, it is required to update the map database appropriately and to always keep the latest state. Conventionally, the processing centered on these map databases, that is, the maintenance processing of the database and the output processing of the database according to the purpose of the user, have been supported in a stand-alone format having the database divided for each purpose of use such as for road display. Was.

[0005]

However, in such a stand-alone processing, for example, when the data amount of one drawing is about 2 MB (megabytes) each time, the throughput becomes extremely long. In addition to deteriorating processing efficiency, database maintenance also needs to be performed separately for each device (system).

Further, in recent years, user needs have been diversified, and there has been a demand for unification of a database in response to diversification of usage purposes. SUMMARY OF THE INVENTION In view of the foregoing, an object of the present invention is to provide a means for constructing a map output system capable of further improving the processing capacity, unifying maintenance processing, and diversifying user needs.

[0007]

The above object is achieved by a map output system configured as described below. FIG. 1 is a diagram illustrating the principle of the present invention. That is, a map output system in which a client device and a server device are connected by a communication line, wherein the client device provides a user-specific output control information when outputting map database information stored in the server device. Output information input means;
Transmitting means for transmitting the unique output information to the server device, the server device receiving means for receiving unique output information from the client device, and map database information stored in the server device; A processing means for processing based on the unique output information, and an output means for outputting processed map database information processed by the processing means, and the map database unique to the user is provided by centrally managing the map database by the server device. When outputting information, the client only needs to transmit the output control information unique to the user, and all subsequent processing and output processing are left to the high-speed server device. Can be reduced.

[0008]

FIG. 2 is a configuration diagram of a map output system according to the present invention. The present system is schematically composed of a client device 20 including one or more personal computers, a communication line 21 connecting the client device to a server device, and a server device 22 serving as a cluster.
This server device has a map database (hereinafter referred to as map D).
B) are connected to a storage device 23 such as a magnetic disk for storing a target map, etc., and a printer or plotter 24 for outputting a target map.

As shown in FIG. 1, in this system, a map DB is centrally managed by a server device and can be accessed in common by all client devices. When outputting map information, the map DB is managed by the server device. The map DB information is processed based on the client-side user-specific output control information transmitted from the client device and output as a plotter.

A program for realizing the functions of the present application is provided in various recording media, installed in a processing device as shown in FIG. 2, and operates on a main memory. First, a map DB that is an object of the present invention is, for example,
For each map data such as "1/1500 scale map of city area"
All the contour positions of the land to be displayed are represented by (X, Y) coordinate values, and the map is cut and cut into vertical and horizontal meshes with drawing Nos.

[0011] Also, the element classification mainly based on the land use form (
(Layers, roads, railroads, etc.) and block Nos. Are layered, and each display unit has an element ID (for a house, individual house ID, for a block, block ID, etc.)
However, it is uniquely assigned for each map type. Therefore,
When designating a target on the map, the target is specified by giving the drawing number or the element ID from the outside.

FIG. 3 shows the management / storage information format of the map DB. FIG. 3 (1) shows the index information format for managing the map DB. To each drawing No.
The element ID (excluding the coordinate value that is the main body of the map DB) belonging to each element is stored for each element. When the user designates an element ID, the drawing ID is identified by searching for the drawing ID to which the element ID belongs.

FIG. 2B shows a layer attribute information format.
A layer attribute table that stores a layer name, a line type, a line width, a line color, and a character size using a layer number as a key,
It is set for each layer No. (layer type).

FIG. 3C shows an element I which is an individual display unit.
It shows the data format of D, and is a main element of the map DB composed of the layer No. to which the element ID belongs, the element ID serving as a key, and the coordinate value group.

Next, output control information unique to the user on the client side that processes the map DB information managed by the server device, that is, unique output information,
This will be described with reference to FIG.

The client-side specific output information can be roughly classified into direct output information necessary for outputting a map,
It is divided into processing information for map DB information. FIG. 1A describes the direct output information, and the map DB
(Scale) Type, output destination, output size, output quantity, color specification (
Map DB which consists of items such as color)
The map DB is selected according to the type of map DB (scale) from (different scales of the same map if the scales are different).

FIG. 2B shows the processing information, which includes information such as output scale, layer display selection information (layer number designation as a parameter), and element color change of layer attribute information (layer number, Line type, line color, etc.), hatch / face fill specification information (parameters such as element ID, hatch / face fill type, color, etc.), legend output selection information (parameter display position,
Size).

These pieces of information are directly transmitted to the server device as processing request information, used as processing information for the map DB, and output information to a plotter or the like, and processed.

Next, the processing on the server side which has received the client-specific output information will be described with reference to FIG. First, the unique output information received from the client side is, for example, a “map of a certain city area“ 1/1500 ”scale”, and the element ID (in this case, the section ID) is “block 100” (the layer No. Assuming a case where “block” is hatched with a blue diagonally rising stripe, in step 50, the element ID (block ID) “block 100 ] Is searched and specified and the drawing No.
If there is a designation to read out the information and to change the scale at the time of outputting the information, in step 51, enlargement / reduction processing is performed by the designation of the user.

Subsequently, according to the purpose of use of the user, it is determined in step 52 whether or not there is a layer display selection designation. If it is designated (for example, all railways are not displayed), in step 53 the designation is made. All layers in which the layer number matches the layer number in the element ID data format described in FIG. 3 (3) are deleted, and are not displayed at the time of output.

Next, in step 54, it is determined whether or not there is an instruction to change the line type or line color of the outline of the element, and if so, in step 55, the layer attribute information is read out with the designated layer No. In step 56, a designated change process is performed.

In the case where hatching / surface painting or the like is designated by individual element ID designation, that is, in this example, there is a designation to hatch the element ID (block ID) "block 100" with a blue diagonally rising stripe. However, in step 57, the presence or absence of these designations is determined, and in step 58, processing according to the designation is performed.

In step 59, it is determined whether or not to output a legend including the various processing operations described so far. In step 60, a process for outputting the legend is performed. Outputs the processing result to the specified output destination such as a plotter, and ends all processing.

FIG. 6 shows an output example of the processing result.

[0025]

As is apparent from the above description, according to the present invention, a huge map database is centrally managed in a server device having a larger processing capacity than a client device, and processing information unique to a user is provided from the client side. Only the transmission to the server device is required, and the processing efficiency as a system is greatly improved at the same time as the transmission efficiency is compressed. In addition, the maintenance work of the map database becomes easy, and it is a remarkable industry that can meet various needs of users. Has a positive effect.

[Brief description of the drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a system configuration diagram of the present invention.

[Figure 3] Storage / management information format of map database

FIG. 4 Client-side specific output information

FIG. 5 is a processing flowchart on the server device side.

Fig. 6 Output example

[Explanation of symbols]

 Reference Signs List 20 client device 21 communication line 22 server device 23 map database 24 map output 50-61 step number

Claims (4)

[Claims] 1. A map output system in which a client device and a server device are connected by a communication line, wherein the client device outputs user-specific output control information when outputting map database information stored in the server device. A map output system comprising: a unique output information input unit that provides the following; and a transmission unit that transmits the unique output information to the server device. 2. The map output system according to claim 1, wherein
A receiving unit that receives the unique output information from the client device; a processing unit that processes the map database information stored in the server device using the unique output information; and a processing that is processed by the processing unit. Output means for outputting completed map database information. 3. In a map output system in which a client device and a server device are connected by a communication line, when outputting map database information stored in the server device to the client device, output control information unique to a user. And a transmission function for transmitting the unique output information to the server device. A computer-readable recording medium storing a program for realizing a unique output information input function for transmitting the unique output information to the server device. 4. The map output system according to claim 3, wherein
A receiving function of receiving unique output information from the client device, a processing function of processing map database information stored in the server device using the unique output information, and a processing processed by the processing means. And a computer-readable recording medium recording a program for realizing an output function of outputting already-used map database information.