JPH0773297A - Drawing updating method for map information system - Google Patents

Abstract

PURPOSE:To provide an easy-to-use map system by changing automatically the character information on a map in response to change of the attribute information and securing matching the attribute information with the display on the map. CONSTITUTION:In the character shape change processing 100 where the change of attribute is informed by the attribute change processing 5, the link information 13 corresponding to the attribute record to be changed is acquired from the link control processing 10. Thus the character shape is changed. An area shape 18 corresponding to the attribute is acquired from the area shape control processing 16. In the information decision processing 200, the placement of the attribute information displayable in the corresponding area is decided and the character shape 17 is changed on a map. In the map shape display processing 4, the map is displayed based on the map shape information 12. Thus it is possible to use the latest information accordant with change of the attribute information by the map.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a map information system for associating a map stored in a computer with data in a database, and a method for updating the display on the map as the data in the database is updated.

[0002]

2. Description of the Related Art A map information system is a system for utilizing data in a database from a geographical point of view. In the conventional map information system used for customer management and municipal residents' services, the customer name and household head name are displayed directly on the map, so you can grasp the address of customers and residents just by looking at the map. . The customer list and the resident information corresponding to the map information are stored in the database independent of the map information. When the contents of the database are changed, the user can check the contents while watching the contents. Change the map information.

[0003]

The conventional method has the following problems. When using the map information system for customer management, municipal residents' services, etc., it is necessary to enter the customer name and household head name directly on the map, and to grasp the address of the customer and residents just by looking at the map There is. Further, in the conventional map information system, since the management of the attribute information and the map shape information is independent regarding the update of the data, even if the attribute information is changed, the related display on the map is not updated. Therefore, there is a problem that the latest attribute information cannot be seen directly on the map.
Further, in order to keep the display on the map in the latest state so as to match the attribute information, the user needs to interactively change the display on the map at the same time as changing the attribute information. Further, when the display on the map is simply changed without the interactive process, the changed portion may be out of the other display portion (area or the like).

The object of the present invention is to solve the problems of the conventional map information system as described above, and to display the latest information corresponding to the attribute information on the map without the maintenance work of the map notation by the user. Especially.

[0005]

According to the present invention, by automatically changing the related character information on the map in accordance with the change of the attribute information and matching the attribute information with the display on the map,
This is a method in which the user can display the map information reflecting the latest attribute information without interactively modifying the arrangement of the text information.

According to the present invention, attribute information such as customer list and resident information and map information corresponding to the information are displayed on the same screen, and when the system user changes the attribute of the attribute display screen, the following processing is performed. , The corresponding attribute on the map screen is changed. The character shape determination process (100) notified of the attribute change by the attribute change process (5) performs the link management process on the link information (13) corresponding to the changed attribute record.
The area shape (18) corresponding to the attribute to be changed is acquired from the area shape management processing (16).
Further, the character shape determination process determines the arrangement of the attribute information that can be displayed in the area and changes the character shape (17) on the map through the character shape management process (14). Map shape display processing (4)
Displays a map with reference to this map shape information (12). According to the present invention, even if the user does not change the image data of the map information by the interactive processing, it is possible to change the character display on the map according to the change of the attribute information.

[0007]

In the character shape changing process, the changed attribute information is received, and the area shape and the character shape corresponding to this are taken out from the link managing means. As a result, the area on the map corresponding to the attribute information to be changed and the character shape to be changed can be determined. Furthermore, by the placement information determination process,
The position and shape of the character to be changed can be determined from the corresponding area shape and the attribute value to be changed. The character shape is changed by giving the arrangement information of the character shape and the character code to be updated, which have been determined in this way, to the character shape management process. By giving this character shape to the map shape display processing, the corresponding character shape can be changed and displayed along with the change of the attribute information, so that the object of the present invention is achieved.

[0008]

EXAMPLES Examples of the present invention will be described in detail below.

(1) Hardware Configuration of System First, FIG. 5 shows a hardware configuration for operating the present system. Each processing shown in FIG. 1 is performed on the memory (57) by the CPU (56). The system user uses the keyboard (52) and mouse to give commands and data.
Use (53). These keyboard (52) and mouse (53) are controlled by a dialogue control process. The display (54) is controlled by the map shape display processing and displays the map information. The secondary storage device (55) is controlled by the map information management process and holds the map information.

(2) Map Information Before describing the details of the processing, the map information handled by this system will be described first. In this embodiment, the map information (12) is the attribute information (11), the link information (13),
Character shape (17), area shape (18), line shape (19)
It is composed of

(A) Attribute information FIG. 6 shows an example of attribute information. Attribute information (11) in this example
Is composed of a record number (111), a householder name (112), an address (113), and an age (114). The attribute information is uniquely identified by the record number. The attribute information management process (11) performs generation, change, search, and deletion of attribute information.

(A) Link information FIG. 3 shows an example of the link information (13). Link information is
The above-mentioned attribute information and map shape information are associated with each other. In this example, the character shape information (17) and the area shape information (18) are associated with the attribute information as the map shape information. As shown in FIG. 3, the combination of the record number (1301), the character shape number (1302), and the area shape number (1303) holds the correspondence between the attribute information and the map shape.
The link information management process is to generate, change, search, and delete the link information.

(C) Character shape FIG. 7 shows an example of character shape data. The character shape includes a character code (172), layout information (173) for indicating the display shape of the character, and a character shape number (171) for identifying the character shape. The layout information further includes a character display position, a character height, a character width, and a character direction. The character shape management process is to generate, change, search, and delete a character shape. FIG. 8 shows an explanatory diagram of each item of the character shape. Here, the character position is represented by coordinates with respect to the origin of the map. In this embodiment, the character shape is used to display the householder name on the map.

(D) Area shape FIG. 9 shows an example of the area shape (18) data. The area shape is composed of an area point sequence (182) representing the area and an area shape number (181) for identifying the area shape. Figure 10
An explanatory view of the area shape is shown in FIG. Each coordinate of the area point sequence is represented by a coordinate with respect to the origin of the map. In this embodiment, the area shape is used to display the house frame corresponding to the household on the map.

(E) Line shape FIG. 11 shows an example of data of the line shape (19). The line shape is composed of a line point sequence (192) representing a line and a line shape number (191) for identifying the line shape. FIG. 12 shows an explanatory diagram of the line shape. Each coordinate of the line-point sequence is represented by a coordinate with respect to the origin on the map. In this embodiment, the line shape is used to display the road on the map.

FIG. 2 shows a screen display example in this embodiment. In FIG. 2, a part of the inhabitant information 2404 is used as the attribute information.
Is displayed, and a peripheral view 2403 corresponding to the inhabitant information 2404 is displayed as map information below it. The user uses the displayed cursor 2406 to specify an entry (household head) 2402 to be changed or a position on the map information.

(3) Various processes Hereinafter, each main process in this embodiment will be described.

(A) Attribute change process FIG. 13 shows an attribute change process flow. First, the record number of the update target attribute is acquired (501). The update target record number is given by the user pointing one of the displayed attribute information with the mouse cursor. At this time, the corresponding record number is acquired in step 501). Next, the update value of the record is acquired (50
2). The updated value of the record is given by the user changing the displayed item of attribute information with the keyboard. At this time, the step (502) acquires the updated value of the record. Further, the record number of the update target attribute and the update value are notified to the attribute management processing (503). Further, the record number and the update value of the update target attribute are notified to the character shape determining process (504).

(A) Character shape change processing FIG. 14 shows a character shape determination processing flow. First, the number of updated characters is acquired from the updated attribute information (101).
Next, the link number is acquired from the link management process by designating the record number of the attribute information (102). Further, the area shape number of the area shape associated with the attribute is acquired using the acquired link information (103). Next, the area shape number is designated and the area shape is acquired by the area shape management processing (104). Further, the layout information of the character shape is determined from the acquired area shape (105). Finally, the character information management process is caused to set the character code of the character information and the arrangement information (106).

(C) Map shape change processing FIG. 15 shows a flow of the map shape change processing. First, a map shape change target is acquired (6001). Next, it is determined whether the change target is a region shape or a line shape (602). -If the change target is a region shape, perform the following processing. First, the change target area is acquired (603). Further, the changed region point sequence is acquired (604). Finally, the changed region point sequence is specified, and the region shape management processing is caused to set the region shape (605). -If the change target is a line shape, perform the following processing. First, the line to be changed is acquired (60
6). Further, the changed line point sequence is acquired (607). Finally, the changed line point sequence is designated to cause the line shape management processing to set the line shape (608).

(D) Link setting process FIG. 16 shows a flow of the link setting process. In the link setting process, since the link information is generated for all the attribute information, the following process is repeated depending on the presence or absence of the associated attribute information (701). If there is no associated attribute information, the process ends. If there is attribute information to be associated, first, the attribute information is sequentially displayed on the screen (702), and the user is interactively instructed the area corresponding to the displayed attribute, and the area number is input (703). (Here, the attribute information and the area shape have already been input.) Next, the user is interactively instructed the character shape corresponding to the displayed attribute, and the character shape is input (704). Next, link information is generated from the character shape number of the input character shape, the area shape number of the area shape, and the record number of the attribute information (705). The above process is repeated until there is no attribute information to be associated.

(4) Character Shape Arrangement Information Deciding Process A method of deciding character shape arrangement information performed in the arrangement information deciding process will be described with reference to FIGS. 17, 18, and 19. First,
An inscribed quadrangle of the character arrangement target area is obtained (1901).
FIG. 20 shows an example of an inscribed quadrangle for character arrangement. As shown in the figure, the width and height of the inscribed quadrangle are W and H, respectively.

The coordinates of the upper left corner of the inscribed quadrangle are used as the coordinates of the character position (1902). When the width of the inscribed quadrangle is larger than the height, the character direction is set to horizontal writing (1904). Otherwise, the character direction is set to vertical writing (1905).
Further, the character width and the character height are calculated (1906). FIG. 19 shows the relationship between the width and height of an inscribed quadrangle and the width and height of characters in horizontal writing and vertical writing. In this example, "character-to-character spacing" and "inscribed quadrilateral-to-character spacing" are set to 10% of the height and width of the character.

In this way, the height and width of the character to be arranged can be determined as follows from the number of characters and the width and height of the inscribed quadrangle.

(A) In case of horizontal writing Character width = (width of inscribed rectangle) / (number of characters + (number of characters +
1) × 0.1) Character height = (Height of inscribed quadrilateral) /1.2 (b) In case of vertical writing Character width = (Width of inscribed quadrilateral) /1.2 Character height = (of inscribed quadrilateral) (Height) / (number of characters + (number of characters + 1) x 0.1) By the above process, if the household name "Kawakami" included in the resident information is changed to "Wakayama", as shown in Fig. 4, on the map information But the head of household name is "Kawakami" to "Wakayama"
Is displayed and the character string is displayed in a predetermined area.

[0026]

As described above, according to the present invention, in the map information system, it is possible to automatically change the related character information on the map in accordance with the change of the attribute information, and always update the latest information. Can be used on the map.

[0027]

[Brief description of drawings]

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

FIG. 2 is a diagram showing an example of a screen of this system.

FIG. 3 is an example of link information.

FIG. 4 is an example of updating a map.

FIG. 5 is a hardware configuration of the system.

FIG. 6 is an example of attribute information.

FIG. 7 is an example of a character shape.

FIG. 8 is an explanatory diagram of character shapes.

FIG. 9 is an example of a region shape.

FIG. 10 is an explanatory diagram of a region shape.

FIG. 11 is an example of a line shape.

FIG. 12 is an explanatory diagram of a line shape.

FIG. 13 is a flow chart of attribute change processing.

FIG. 14 is a flow of character shape changing processing.

FIG. 15 is a flow of map shape changing processing.

FIG. 16 is a flow of a link setting process.

FIG. 17 is a flow of arrangement information determination processing.

FIG. 18 is an explanatory diagram of an inscribed quadrangle for character arrangement.

FIG. 19 is a diagram showing a relationship between an inscribed quadrangle, character height, and width.

[Explanation of symbols]

100: Character shape change processing, 200: Arrangement information determination processing, 1.
..Dialogue control processing, 2 ... Map information management processing, 3 ... Map information, 4 ... Map shape display processing, 5 ... Attribute change processing, 6 ... Map shape change processing, 7 ... ..Link setting processing, 8 ... Attribute management processing, 9 ... Map shape management processing, 10 ... Link management processing, 11.
..Attribute information, 12 ... Map shape information, 13 ... Link information, 14
... Character shape management processing, 15 ... Region shape management processing, 16 ...
Line shape management processing, 17 ... letter shape, 18 ... area shape, 19 ...
・ Linear shape

Claims (2)

[Claims] Claim: What is claimed is: 1. Attribute management processing for managing attribute information, map shape management processing for managing map shape, link information for holding correspondence between attribute information and map shape information, and link management processing for managing this link information. Receives the attribute change notification from the attribute change process that instructs attribute change to the attribute management process and the attribute change process, extracts the link information related to the attribute from the link management process, and relates to the attribute based on this link information The map shape information to be extracted is extracted from the map shape management process, the character shape in the map shape to be changed is determined, the map shape management process is instructed to change the character shape, and the attribute is changed and the corresponding attribute is associated. A method for updating a drawing of a map information system, which has a character shape changing process for changing a character shape on a map. 2. The method for updating a drawing according to claim 1,
The map shape has a character shape and an area shape, and the link information holds the correspondence relationship between the attribute information, the character shape, and the area shape, and in the character shape changing process according to claim 1, the character corresponding to the updated attribute information. A method for updating a drawing of a map information system, comprising: extracting a shape and an area shape from link information, and having layout information determination processing for determining layout information of a character shape to be arranged in the area from the shape of the area.