JP3464774B2 - Method and system for calculating spatial coordinate values of pictorial map and recording medium storing program for executing the method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION In the present invention, a pictorial map is associated with a spatial coordinate value for a pictorial map, such as latitude and longitude coordinates, which cannot be defined as used in advertisements and tourist guide maps. The present invention relates to a technique of managing and calculating a place on a pictorial map corresponding to an arbitrary space coordinate value.

[0002]

2. Description of the Related Art Conventionally, in an electronic map application for displaying a map on a computer, coordinate values are given to map data in a spatial coordinate system defined by a geodetic system such as latitude / longitude coordinates or the national 19-coordinate system. It is common to manage by From the map viewer program, it is possible to perform a map operation such as specifying a spatial coordinate value and displaying a desired map area. Less than,
An electronic map having such spatial coordinate values will be called a general-purpose map.

On the other hand, in telephone directory advertisements and town information magazines, in order to advertise stores and facilities, a pictorial map is drawn on a paper medium or a bulletin board to easily understand the route from the nearest station to the location. At tourist sites, etc., tourist guide maps are created to show tourists the locations of nearby tourist facilities, and are distributed as paper media or drawn on bulletin boards.

As described above, various maps are used according to the purpose of use. However, in the world of map applications, there is no technology for properly using the pictorial map as described above according to the purpose of use.

[0005]

[Problems to be Solved by the Invention] In general, a designer draws a pictorial map specialized for the purpose of use for a tourist pictorial map used for tourist information and a map for directions used for advertising of facilities and shops. There are many. In these pictorial maps, because the distance, direction, road shape, etc. are deformed and drawn,
It is very difficult to give a normalized spatial coordinate value such as a latitude / longitude coordinate space to any point on the pictorial map for these pictorial maps.

Since it is difficult to give a spatial position to an arbitrary point on the pictorial map, a map operation such as displaying the map by designating a desired spatial coordinate value of the map on the pictorial map There is a problem that the navigation system using the pictorial map cannot be constructed by displaying the spatial coordinate values such as the latitude / longitude coordinates acquired by GPS or the like on the pictorial map.

An object of the present invention is to provide a method and system for calculating a location on a pictorial map corresponding to a given spatial coordinate value when the spatial coordinate value is given .

[0008]

The present invention solves the above problems by the means listed below. One means that is, responsibility
When given spatial coordinate values, pictorial map and general map
Save the correspondence of the sections that define each route of
Using the correspondence table, the coordinates on the pictorial map corresponding to the spatial coordinate values
A method for calculating the spatial coordinate value of a pictorial map for calculating the standard value,
The route closest to the given spatial coordinate value on the general map
The process of searching for the closest segment as a segment on
On the pictorial map corresponding to the closest section on the searched general-purpose map
Of the closest section of the
A pictorial map corresponding to the start point R and end point S of the closest section on the map
Of the relative points R ', S'in the
The given spatial coordinates from the starting point R of the closest section on the diagram
Find the distance d _PR to the value position and draw the picture corresponding to this distance.
Calculate the distance d _P ' _R ' from the point R'of the closest section on the map
The process of exiting, and the starting point R of the closest section on the general-purpose map
From the above to the position of the given spatial coordinate value and the recent
The process of obtaining the angle θ formed by the line segments of the tangent section,
The maximum on the pictorial map corresponding to the starting point R of the closest section on the diagram
From the point R ′ in the close range, the angle θ is calculated as described above.
Of the location on the pictorial map with the distance d _P ' _R ' on the pictorial map
And a step of calculating coordinate values, which is a method of calculating spatial coordinate values of a pictorial map.

Alternatively, in the correspondence table , for a pictorial map to which no spatial coordinate value is given, the starting point and the destination are determined from the information drawn on the pictorial map, and the route between them is divided into sections. The process of defining and managing, the process of defining and managing the route corresponding to the route on the pictorial map as a divided section on the general map in which the spatial coordinate values are defined, and each of the pictorial map and the general map Is stored and managed as a section correspondence table, and the spatial coordinate value calculation method is characterized by being stored and managed by the section correspondence table.

Alternatively, in the process of defining the route on the pictorial map, the characteristic points of the pictorial map existing on the route connecting the determined starting point and the destination are extracted, and the extracted characteristic points are set to the starting point. From the point to the destination are connected by line segments in order, each line segment is defined and managed as a section of the route on the pictorial map, and in the process of defining the route on the general map, the starting point corresponding to the pictorial map A route connecting the destinations is obtained, feature points corresponding to the pictorial map existing on the route are extracted, and the extracted feature points are sequentially connected by line segments from the starting point to the destination. The spatial coordinates of a pictorial map characterized by defining and managing as a route section on a general-purpose map
This is a value calculation method.

Alternatively, a pictorial map position calculating means is provided,
Given arbitrary spatial coordinate values, pictorial map and general area
Save the correspondence between the sections that define each route in the diagram
In the spatial coordinate value calculation system of the pictorial map for calculating the coordinate value on the pictorial map corresponding to the spatial coordinate value using the correspondence table, the pictorial map position calculating means is provided on the general-purpose map. means for searching the nearest section of the section on the closest route to the space coordinates, means for determining the nearest section on picture map corresponding to the nearest interval on the searched universal map from said correspondence table , The nearest section on the general-purpose map
Relative points in the pictorial map corresponding to the starting point R and the ending point S of
R ', S' and a means for determining, before the nearest District on KiHiroshi map
From the starting point R to the position of the given spatial coordinate value
Means for obtaining the distance d _PR and calculating a distance d _P ' _R ' from the point R'of the closest section on the pictorial map corresponding to this distance;
From the starting point R of the closest section on the general-purpose map,
The line segment to the position of the spatial coordinate value and the line segment of the closest segment
Means for determining the angle θ Nasu, point closest section on the painting map corresponding to the start point R of the nearest section on the universal map
Means for calculating the coordinate value of the position on the pictorial map having the calculated distance d _P ' _R ' on the pictorial map at the calculated angle θ from R '. It is a spatial coordinate value calculation system .

Alternatively, in the correspondence table, for a pictorial map to which no spatial coordinate value is given, the starting point and the destination are determined from the information drawn on the pictorial map, and the route between them is divided into sections. A pictorial map route managing means for defining and managing, and a generic map route managing means for defining and managing a route corresponding to a route on the pictorial map as a divided section on a generic map with spatial coordinate values defined, Correspondence table management means for storing and managing the correspondence relationship between sections defining the respective routes of the pictorial map and the general-purpose map as a section correspondence table, and spatial coordinates characterized by being stored and managed by the correspondence table management unit. It is a value calculation system.

Alternatively, the picture map route management means is
The characteristic points of the pictorial map existing on the route connecting the determined starting point and the destination are extracted, the extracted characteristic points are connected by line segments in order from the starting point to the destination, and each line segment is connected to the pictorial map. The route is defined and managed as a section of the upper route, and the general-purpose map route management means obtains a route connecting the starting point and the destination corresponding to the pictorial map, and the pictorial map existing on the route. A feature point corresponding to a map is extracted, the extracted feature points are sequentially connected by line segments from the starting point to the destination, and each line segment is defined and managed as a section of a route on a general-purpose map. Spatial coordinates of a pictorial map characterized by
It is a value calculation system.

[0014]

[0015]

Alternatively, a program for causing a computer to execute the steps of the method for calculating the spatial coordinate value of a pictorial map is recorded in a recording medium readable by the computer, and the spatial coordinate value of the pictorial map is recorded. It is a recording medium recording an execution program of the calculation method.

In the present invention, the corresponding routes of the pictorial map to which the spatial coordinate values are not assigned in advance and the general map having the spatial coordinate values are defined by the sections connecting the characteristic points extracted respectively, By creating a correspondence table between these sections and managing the pictorial map, if any spatial coordinate value is given, find the closest section on the general-purpose map where the position of the spatial coordinate value is the closest, The closest section on the pictorial map is obtained using the correspondence table, the direction and distance of the position of the spatial coordinate value from the closest section on the general-purpose map are calculated, and the direction from the closest section is the same as the general-purpose map. In the direction, the distance is proportional to the general-purpose map, and the position of the pictorial map corresponding to the spatial coordinate value can be calculated.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

First, a method for managing a pictorial map according to the present invention,
The principle of the method for calculating the spatial position of a pictorial map will be described. In Figure 2,
A general map (a) and a pictorial map (b) for explaining the principle are shown.

An assumed route is determined from the information of the starting point (1) and the destination (4) drawn on the pictorial map illustrated in FIG. 2 (a), and an intersection or a target object is determined for the route. ,
Plot characteristic points such as road curves, connect them with line segments, and define them as routes. Similarly, with respect to the route on the general-purpose map of FIG. 2B corresponding to this pictorial map, feature points are plotted and connected by line segments to define the route. Each line segment is defined as a route section, and which section on the general map corresponds to which section on the pictorial map is defined as a correspondence table. This is the principle of the pictorial map management method according to the present invention.

Any spatial coordinate value (for example, user or GP
(Provided by the S device, etc.), from the corresponding position (P) on the general-purpose map, which section is closest to the section on the route on the general-purpose map is calculated. The contact section is obtained from the above correspondence table. Calculate the distance from the nearest section on the general-purpose map and the distance from the nearest section, and express the distance between the general-purpose map and the picture map so that the direction from the nearest section is the same direction on the general-purpose map and the picture map. The position (P ') of the pictorial map corresponding to the spatial coordinate value is specified in a proportional manner. This is the principle of the method for calculating the spatial position of a pictorial map according to the present invention.

First, an example of an embodiment of a system for realizing the management of pictorial maps and the calculation of spatial coordinate values of pictorial maps according to the present invention will be described. FIG. 1 is a block diagram of this system.

As a pictorial map management system, a pictorial map data creation unit 1, a pictorial map display unit 2, and a general-purpose map display unit 3 are provided.
, A pictorial map route management unit 4 and a general-purpose map route management unit 5
And a correspondence table management unit 6. The pictorial map spatial coordinate value calculation system includes a pictorial map route management unit 4, a general-purpose map route management unit 5, a correspondence table management unit 6, and a pictorial map position calculation unit 7.

The pictorial map data creation unit 1 is operated by an administrator who administers this system. In the pictorial map data creation unit 1, the pictorial map data to be displayed is displayed on the pictorial map display unit 2, and the pictorial map route management unit 4 registers the coordinate values in the pictorial map of the starting point and the destination, and the general map Display 3
, The area corresponding to the pictorial map is displayed, the route on the general map is registered in the general map route management unit 5, and each route on the general map corresponds to which route on the pictorial map. It is registered as a table in the correspondence table management unit 6.

The pictorial map display unit 2 has a function of registering a pictorial map as a target and displaying the pictorial map. Further, by managing the position in the pictorial map as coordinates by using pixels or the like, it becomes possible for the pictorial map route management unit 4 to specify the location of the route in the pictorial map by the coordinate value in the pictorial map.

The general-purpose map display unit 3 manages general-purpose map data by a scale for displaying a map and spatial coordinates such as latitude and longitude. When a general-purpose map display request is made, the designated scale and the specified scale are designated. The map of the corresponding area is displayed according to the created spatial coordinate values.

In the pictorial map route management unit 4, the system administrator registers and saves the coordinate values of the starting point and the destination in the pictorial map from the information drawn on the pictorial map. In addition, the coordinate values in the pictorial map are stored for the positions of the feature points on the route between the starting point and the destination. When there is an inquiry from the pictorial map position calculation unit 7 about a position on the pictorial map route, the position of the point in the pictorial map is returned.

In the general-purpose map route management unit 5, the administrator registers and saves spatial coordinate values such as latitude / longitude coordinates of feature points of the route for the route corresponding to the pictorial map. When the pictorial map position calculating unit 7 makes an inquiry about the spatial coordinate values of the route of the general-purpose map, the spatial coordinate values such as latitude and longitude coordinates are returned to the pictorial map position calculating unit 7.

The correspondence table management unit 6 is a section for storing and managing a correspondence table showing which section of the general map corresponds to which section of the pictorial map. When creating the correspondence table, it is specified which section of the general map corresponds to which section of the pictorial map, and the correspondence relationship is managed as a table. On the other hand, when the pictorial map position calculation unit 7 makes an inquiry about the pictorial map section corresponding to the general-purpose map section, the pictorial map section calculation unit 7 returns the corresponding pictorial map section to the pictorial map position calculation unit 7.

In the pictorial map position calculation unit 7, the user and GPS
When a spatial coordinate value such as latitude / longitude is given from a device or the like, the spatial coordinate value of each feature point on the route managed by the general-purpose map route management unit 5 is used for the given spatial coordinate value. The pictorial map position calculation unit 7 obtains the closest section on the general-purpose map, and inquires of the correspondence table management unit 6 about the closest section on the pictorial map corresponding to the closest section on the general-purpose map. Inquiries about the coordinate values of the route in the pictorial map from the closest section on the pictorial map to the pictorial map route management unit 4,
Using the result, the coordinate value on the pictorial map corresponding to the given spatial coordinate value is obtained.

Next, an embodiment of a pictorial map management method and a pictorial map spatial coordinate value calculation method realized by the above system will be described.

In the present embodiment, the route is extracted as a section for advance preparation, and a pictorial map management stage for associating the section of the general-purpose map with the section of the pictorial map and the case where arbitrary spatial coordinate values are given There are two steps of calculating the spatial coordinate value of the pictorial map for calculating the position of the pictorial map.

First, the processing procedure at the pictorial map management stage in which the routes of the pictorial map and the general-purpose map are extracted as sections and the sections are associated with each other will be described. The flow of the processing procedure is shown in FIG.

First, for a general-purpose map having spatial coordinate values, the latitude / longitude coordinate system is used as the spatial coordinate system. In the general map, the upper direction corresponds to the north, so the upper direction of the map,
The latitude and longitude values increase as you move to the right. On the other hand, for a pictorial map, the coordinate system necessary for specifying the position in the pictorial map is the origin in the lower left, the positive direction of the X axis in the right direction, and the positive direction of the Y axis in the upward direction from the origin. Use the plane coordinate system.

Next, points that are characteristic of the route are extracted from the pictorial map, and the coordinate values in the plane coordinate system of the pictorial map and the order of appearance from the assumed starting point to the destination are held.
In the example of FIG. 2B, four points in the pictorial map can be extracted, and the coordinate values and the numbers 1 to 4 indicating the order are recorded at the respective points. In addition, 1 is a departure place and 4 is a destination.

In order to define the route of the pictorial map, it is necessary to take out the route as a line figure from the pictorial map.
In order to define as a line figure, the feature points that represent the route are extracted from the pictorial map, and the feature points are connected by line segments to define the route on the pictorial map. At that time, it is necessary to define the route so that the route drawn on the pictorial map can be reproduced. Therefore, the following points are used as the characteristic points on the pictorial map.・ Intersections ・ Ends of roads ・ Bending corners For example, when both ends of a road are approximated by straight lines, the distance from the straight line exceeds a certain allowable range,
And the point where the distance is the longest. This point is defined by the piecewise linear approximation method or the like.

Next, corresponding to the route of the pictorial map, a route is set on the general-purpose map to extract characteristic points on the route, and the latitude / longitude coordinate value of each point and the expected starting point Record the order of appearance to the ground. In the example of FIG. 2A, 9
Points 1 to 9 that can extract points and indicate latitude and longitude coordinates and order
To record.

Regarding the method of extracting the road network from the general-purpose map given the latitude and longitude, see "Itonaga, et al.," Method of extracting road network from map image ", IEICE Technical Report EID97-161. , 1998 ”. According to this research, when a road is extracted as a network, it is extracted as a graph structure composed of nodes and links. With such a method, it becomes possible to use an existing map as a road network with a graph structure and reduce it as a network flow problem in the field of operations research. It becomes possible to ask. Further, as the section on the general-purpose map, the section defined by the nodes and links of this road network is used as the section.

Next, with respect to each of the general-purpose map and the pictorial map, the extracted points are connected by line segments in the order of appearance from the starting point, and are defined as sections. In the case of the example of FIG. 2, sections 1 to 9 can be defined for a general-purpose map, and sections 1 to 3 can be defined for a pictorial map.

Next, it is judged which section of the pictorial map corresponds to each section of the general map, and a correspondence table showing the relationship between the sections of the general map corresponding to the section of the pictorial map is created. create. The correspondence table in the example of FIG. 2 is shown in FIG. Figure 2
In, for example, when it is determined which section on the general map corresponds to section 1 on the general map, it can be seen that section 1 on the pictorial map corresponds. Further, when the section on the pictorial map corresponding to the section 2 on the general-purpose map is determined, it is found that it is the section 1 on the pictorial map. However, section 3 of the general map
Can be considered to correspond to section 2 of the pictorial map. As described above, the correspondence table as shown in FIG. 4 can be created.

Next, a processing procedure of the step of calculating the spatial coordinate value of the pictorial map for calculating the position of the corresponding pictorial map when an arbitrary spatial coordinate value is given will be shown. The flow of the processing procedure is shown in FIG. In this processing procedure, when an arbitrary space coordinate value is given, a point on the pictorial map corresponding to the latitude / longitude coordinate is obtained. In the example of FIG. 2, the coordinate value in the plane coordinate system of the pictorial map is obtained for the corresponding point P ′ on the pictorial map when the latitude / longitude of the point P is given.

First, when an arbitrary space coordinate value (latitude / longitude coordinate) is given by the user or the like, the closest section on the route is obtained on the general-purpose map. As a method of obtaining the distance, if the position of the given spatial coordinate value on the general-purpose map is point P, the distance from point P to each section of the general-purpose map is obtained, and the section with the shortest distance is determined. It is the closest section of P. FIG. 7 shows a method for obtaining the distance from the point P to the section. When obtaining the distance, when a perpendicular can be drawn from the point P to the line segment of the section as shown in FIG. 1 (1), the length d of the perpendicular is taken as the distance, and as shown in FIG. 7 (2). If the perpendicular cannot be drawn, the distance from the end point of the section closer to the point P to the point P is obtained. In the case of the example in FIG. 2, since the distance from the point P to the section 4 with a perpendicular line is the shortest, the section 4 is the closest section. The distance from the point P to the section 4 is d for the sake of future explanation.

Next, which section of the pictorial map the section of the general-purpose map is included in is determined using the above-mentioned correspondence table. It can be seen from FIG. 4 of the correspondence table in the example of FIG. 2 that section 4 of the general-purpose map corresponds to section 2 of the pictorial map.

Next, since the closest section of the pictorial map includes one or more general-purpose map sections, the closest section of the general-purpose map included in the closest section of the pictorial map is the pictorial map section. Find the relative position within. The points corresponding to the start point R and the end point S of the closest section of the general-purpose map are defined as points R'and S '. For the example of FIG. 2, an enlarged view of the closest section for obtaining the position of the point R ′ is shown in FIG. As shown in FIG. 3A, in order to obtain the relative position of the starting point of section 4 in sections 3 to 7 of the general-purpose map, the distance of section 3 and section 4
~ The distances of the sections 7 are calculated respectively, and α: (1-α) is obtained. Section 2 in Section 2 which is the closest section of the pictorial map
The point dividing the distance of α into (1-α) is the position of the point R ′, so the coordinate value of the point R ′ in the pictorial map can be calculated from the coordinates of the start point and the end point of section 2 in the pictorial map. calculate. Similarly, the coordinate value of the point S ′ in the pictorial map is calculated.

Next, the direction and the distance from the start point of the closest section are calculated. First, point P on the general-purpose map
The distance d _PR between the point R and the point R, the distance d _RS of the closest section, and the distance d _R ' _S ' on the pictorial map corresponding to the closest section of the general-purpose map are obtained using the respective coordinate values. How far the position of the point P'obtained from the point R'is distant is calculated by the equation (1).

[0046] _{d P 'R' = d PR} (d R 'S' / d RS) ... (1) Next, in order to calculate whether the point P on the universal map is shifted in any direction from the nearest section Suppose that the angle θ formed by the line segment and the line segment PR of the closest segment is obtained, and that there is a point P ′ to be obtained on the pictorial map in the same angle direction from the closest segment of the pictorial map.
θ is obtained by the equation (2).

Sin θ = d / d _PR (2) Since the direction and distance from the point R ′ can be known from the equations (1) and (2), the coordinate value of the point P ′ can be geometrically calculated. .

As described above, when the spatial coordinate value of the point P is given, the coordinate value of the corresponding point P'on the pictorial map can be calculated.

It should be noted that some or all of the processing and control functions of each part of the apparatus shown in FIG. 1 can be realized by using a computer, or the processing procedure shown in FIGS. Needless to say, it is possible to execute the program for realizing the processing and control functions of each part of the computer, or the program for causing the computer to execute the processing procedure, a computer-readable recording medium, For example, FD (floppy disk), MO, ROM,
It is possible to record on a memory card, a CD, a DVD, a removable disk, etc. and store, provide, or distribute.

[0050]

According to the present invention, the position in the corresponding pictorial map can be specified by giving an arbitrary spatial coordinate value. Therefore, similar to the map given the spatial coordinate value, the pictorial map is given. It is possible to display the area of the corresponding pictorial map by giving a spatial coordinate value to, or to display the spatial coordinate value such as latitude and longitude coordinates acquired by GPS etc. on the pictorial map and use the pictorial map. You will be able to do navigation, etc.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an example of an embodiment of a system that realizes management of pictorial maps and calculation of spatial coordinate values of pictorial maps according to the present invention.

2A shows an example of a general-purpose map corresponding to a pictorial map for explaining the principle of the pictorial map management method and the pictorial map spatial position calculating method according to the present invention; FIG. It is a figure which shows the example of a map.

3 (a) and 3 (b) illustrate a method of obtaining the positions of the end points on the pictorial map corresponding to the positions of the end points on the route of the general-purpose map in the example of FIG. 2 in the above embodiment. FIG. 3 is an enlarged view of the closest section for.

FIG. 4 is a diagram showing an example of a correspondence table in the example of FIG. 2 in the embodiment described above.

FIG. 5 is a flowchart showing a processing procedure of an embodiment of a pictorial map management method according to the present invention.

FIG. 6 is a flowchart showing a processing procedure of an embodiment of a method for calculating spatial coordinate values of a pictorial map according to the present invention.

7 (1) and (2) are diagrams for explaining a method of obtaining a distance from a position on a general-purpose map of an arbitrary spatial coordinate value to a section on the general-purpose map.

[Explanation of symbols]

1 ... Picture map data creation section 2 ... Pictorial map display 3 ... General-purpose map display section 4 ... Picture map route management department 5: General-purpose map route management section 6 ... Correspondence table management section 7 ... Picture map position calculation unit

─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Ryuji Hoshi 2-3-1, Otemachi, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) Reference JP-A-11-202762 (JP, A) JP 11-248473 (JP, A) JP 9-305106 (JP, A) JP 2-141611 (JP, A) JP 2001-22772 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G09B 29/00-29/14 G01C 21/00 G06T 17/50

Claims (7)

(57) [Claims] 1. When an arbitrary spatial coordinate value is given,
Of the section that defines each route of the pictorial map and the general map
Correspond to the spatial coordinate value using the correspondence table that stores the correspondence
A method of calculating spatial coordinate values of a pictorial map, wherein a process of searching for a closest segment as a segment on a route closest to the given spatial coordinate value on a general-purpose map, The process of obtaining the closest section on the pictorial map corresponding to the closest section on the searched general-purpose map from the correspondence table, and the start point R and the end point S of the closest section on the general-purpose map.
That relative terms painting the map R ', S' and the process for obtaining the given from said start point R of nearest section on previous map for KiHiroshi
The distance d _PR to the position of the spatial coordinate value is calculated, and the distance from the point R ′ of the closest section on the pictorial map corresponding to this distance is calculated.
From the process of calculating d _P ' _R ' and the starting point R of the closest section on the general-purpose map,
The line segment to the position of the spatial coordinate value and the line segment of the closest segment
A process of obtaining the angle θ Nasu, angle which is the calculated terms R 'nearest section on the painting map corresponding to the start point R of the nearest section on the universal map θ
And a step of calculating the coordinate value of the position on the pictorial map having the calculated distance d _P ' _R ' on the pictorial map. 2. The correspondence table, for a pictorial map to which no spatial coordinate value is given, determines a starting point and a destination from the information drawn on the pictorial map, and divides the route between them into sections. The process of defining and managing, the process of defining and managing the route corresponding to the route on the pictorial map as a divided section on the general map in which the spatial coordinate values are defined, and each of the pictorial map and the general map space coordinate value calculation method according to claim 1, characterized in that the step of storing and managing correspondence of the section that defines a route relationship as the corresponding table of the section, by the management, those saved. 3. In the process of defining the route on the pictorial map, feature points of the pictorial map existing on the route connecting the determined starting point and destination are extracted, and the extracted feature points are set to the starting point. From the point to the destination are connected by line segments in order, each line segment is defined and managed as a section of the route on the pictorial map, and in the process of defining the route on the general-purpose map, the starting point corresponding to the pictorial map Find the route connecting the destinations,
Feature points corresponding to the pictorial map existing on the route are extracted, the extracted feature points are sequentially connected by line segments from the starting point to the destination, and each line segment is defined as a route section on a general-purpose map. 3. The method for calculating spatial coordinate values of a pictorial map according to claim 2, wherein 4. A pictorial map and a general-purpose map, provided with pictorial map position calculating means, when arbitrary spatial coordinate values are given.
Correspondence that saves the correspondence of the sections that define each route
Table A space coordinate calculating system picture map for calculating a coordinate value on a picture map corresponding to the coordinate values the space using the picture map position calculating means, said given on the diagram pan land space means for searching the nearest section of the section on the closest route to the coordinate values, means for determining the nearest section on picture map corresponding to the nearest interval on the searched generic map before Symbol pair enabled table And the start point R and end point S of the closest section on the general-purpose map.
That relative terms painting the map R ', S' means for determining, given from said start point R of nearest section on previous map for KiHiroshi
The distance d _PR to the position of the spatial coordinate value is calculated, and the distance from the point R ′ of the closest section on the pictorial map corresponding to this distance is calculated.
The means for calculating d _P ' _R ' and the given point from the starting point R of the closest section on the general-purpose map.
The line segment to the position of the spatial coordinate value and the line segment of the closest segment
Means for determining the angle θ Nasu, before Symbol angle which is the calculated terms R 'nearest section on the painting map corresponding to the start point R of the nearest section on universal map θ
And a means for calculating the coordinate value of the position on the pictorial map having the calculated distance d _P ' _R ' on the pictorial map. 5. The correspondence table is a section obtained by determining a starting point and a destination from the information drawn on the pictorial map for a pictorial map to which no spatial coordinate value is given, and dividing the route between them. A pictorial map route management means for defining and managing, and a generic map route managing means for defining and managing a route corresponding to the route on the pictorial map as a divided section on a generic map with spatial coordinate values defined, a correspondence table management means stores and manages the correspondence of the section that defines the respective root of said picture map and generic map as the corresponding table of the section, by the management, the this <br/> and those stored The spatial coordinate value calculation system according to claim 4 . 6. The pictorial map route management means extracts characteristic points of a pictorial map existing on a route connecting the determined starting point and destination, and extracts the extracted characteristic points from the starting point to the destination. Are sequentially connected by line segments, and each line segment is defined and managed as a route section on the pictorial map, and the general-purpose map route management means connects between the starting point and the destination corresponding to the pictorial map. A connecting route is obtained, feature points corresponding to the pictorial map existing on the route are extracted, and the extracted feature points are sequentially connected by line segments from the starting point to the destination, and each line segment is connected on a general-purpose map. The spatial coordinate value calculation system for a pictorial map according to claim 5, wherein the system is defined and managed as a section of a route. 7. A program for causing a computer to execute the process of the method for calculating spatial coordinate values of a pictorial map according to claim 1 , recorded in a computer-readable recording medium. A recording medium recording an execution program of a method for calculating spatial coordinate values of a characteristic pictorial map.