JPH10214330A - Area overlapping judging device and a storage medium storing area overlapping judging program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a correct boundary without requiring a manual load by manual aid by comparing coordinate data of two designated area storing means and displaying the overlapping state of a boundary line based on the comparing result. SOLUTION: Plural area files 10A to 10N respectively house boundary coordinate data showing a boundary line by each area. An inputting part 20 designate- inputs two area names or file names whose overlapping of the areas from an input picture are desired to investigate. A file selection part 40 reads information in two files from the files 10A to 10N. An area comparing part 50 compares two boundary coordinate data based on information in the two files. A table generation part 60 generates a table based on the comparing result. This table gives a mark to the intersection of the boundary coordinate points of two area files 10A to 10N when the coordinates of the two area files 10A to 10N are coincident but generates a boundary table to be blank at the time of noncoincidence.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an area duplication judging device and a storage medium storing an area duplication judging program, and more particularly to a method for generating area data sharing an area boundary when displaying a map. The present invention relates to an area duplication determining apparatus and a storage medium storing an area duplication determining program for detecting a duplication error of area data which should not originally have duplication or a blank error of area data which should not have a blank at a boundary.

More specifically, for example, when a plurality of areas having a certain area such as territorial waters are conditions that should not overlap, if there is overlapping area data, the area data is detected. Also, when conditions are such that the border is shared and there is no blank area (which is not any country), such as the national land, etc., if the area data of the blank area exists, it is necessary to detect the area. The present invention relates to an area overlap determination device and a storage medium storing an area overlap determination program.

[0003]

2. Description of the Related Art Conventionally, whether or not there is an overlap in territorial waters or the like is determined by using coordinates that can be manually designated, such as graph paper, by using the coordinates of the position of the boundary of the territorial waters. And finally connect the coordinates with a line to check if there is any overlap. Also, using a computer,
Specify and input coordinates at the position on the screen as (x, y),
There is a method of recognizing the overlap or the blank of the area by connecting the input coordinate positions with a line and visually checking whether or not there is a border overlap or a blank.

[0004]

However, in the above-mentioned conventional manual method, it is necessary to specify a large number of coordinate points finely in order to eliminate errors when connecting a boundary line. Since the points are connected by a straight line, the area becomes a rough area as shown in FIG. 12, and a large deviation occurs from the actual boundary line shown by the dotted line.

In the example shown in FIG. 12, between the coordinate points b and c,
The error particularly increases between the coordinate points gh. In order to prevent such a situation, it is necessary to specify coordinate points more finely. To perform these operations manually requires a human load, cost, and time, and is inefficient. Also, in the method in which the operator inputs coordinate points to the computer, if there is a mistake in inputting the coordinate points, an incorrect boundary will be drawn. For example, when the x and y coordinates of the coordinates are input in reverse. Has a problem that the error is large and the reliability is low.

In view of the above, the present invention provides an area duplication determining apparatus and a storage medium storing an area duplication determining program capable of acquiring an accurate boundary without imposing a manual load on humans. The purpose is to provide. Also,
It is a further object of the present invention to provide an area duplication determination device and a storage medium storing an area duplication determination program, which can easily recognize an area duplication or blank.

[0007]

According to a first aspect of the present invention, at least two area storage means having a plurality of coordinate data in an area, and a storage designating two area storage means which share the area among the area storage means. The apparatus has means for designating means and state display means for comparing coordinate data of the two area storage means designated by the storage means designating means and displaying the overlapping state of the boundary lines based on the comparison result.

According to a second aspect of the present invention, in the status display means, the coordinate data of the area storage means of the two storage means are matched, and a mark is given to the coordinate data which coincides with the position of the intersection of the coordinate data on the table. Providing means, an error determining means for determining coordinate data in which the mark provided by the mark providing means is discontinuous as an error candidate,
Table display means for displaying a table to which a mark has been added by the mark providing means, and error display means for displaying an error candidate on the coordinate data of the area storage means which is an error candidate by the error determining means. Including.

According to a third aspect of the present invention, the status display means includes an area display means for displaying a shared area and / or a blank area of the two areas based on the input coordinate data of the two area storage means. . According to a fourth aspect of the present invention, the error display means displays coordinate data before and after the error candidate including the error candidate, and displays the error candidate specified by the error determination means in a special display including a reverse display and a blinking display. Means for performing the following.

According to a fifth aspect of the present invention, the coordinate data stored in the area storage means has an arrangement in a predetermined order. A sixth invention is a storage medium storing an area duplication determination program, wherein, among at least two area storage means having a plurality of coordinate data in the area, a storage process for designating two area storage means sharing the area. 2 specified by the designated process and the storage process designated process
A state display process of comparing coordinate data of the two area storage units and displaying the overlapping state of the boundary lines as a two-dimensional table based on the comparison result.

As described above, in the first and sixth aspects,
In order to compare the two areas, two area storage means (hereinafter, referred to as files) are read, and a boundary line shared by the areas of the area file or two areas serving as blank areas generated in the area file are read. By displaying the state of the area, it is possible to determine which coordinate data has an error.

Further, in the second invention, a mark is added to the position of the intersection of the coordinate data whose coordinates match on the table for the state of the two displayed areas, and a portion where the file is continuous is provided. Is a shared boundary line, and a portion where the mark is discontinuous is regarded as an error candidate. However, the cause of the discontinuity is not only an error but also one point of the coordinates of the area, and therefore, the candidate is selected here.

According to a third aspect, in the status display means,
By displaying the common area and / or the blank area of the two areas based on the input coordinate data of the two area files, the operator visually recognizes the area in which the coordinates are connected by a line, so that an error is detected. It is possible to determine whether or not. According to a fourth aspect, in the error display means,
For the error candidate specified by the error determination means,
By performing display such as reverse display and blinking display, it is possible to easily determine whether or not an error candidate is an error by referring to coordinate data before and after the error candidate portion in the area data file. is there.

According to a fifth aspect of the present invention, the coordinate data stored in the area file is arranged in a regular order such as clockwise or counterclockwise.
When matching is performed by the status display means, the data order is maintained consistently.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of an area overlap judging device according to the present invention. The apparatus shown in FIG. 1 includes a plurality of area files 10A, 10B, 10C,... 10N, an input unit 20, a display unit 30, a file selection unit 40, an area comparison unit 50, and a table generation unit 60. Each of the plurality of area files 10A, 10B, 10C,... 10N stores boundary coordinate data indicating a boundary line for each area.

The input section 20 designates and inputs two area names or file names for which overlap is to be checked from the input screen. The file selection unit 40 reads information of the two files from the area file 10 based on the two area names or the file names specified by the input unit 20, and transfers the information to the area comparison unit 50.

The area comparing section 50 matches two pieces of boundary coordinate data based on the coordinate information of the two files, and compares the result of the matching with the coordinate data as a table generating section 60.
Transfer to The table generation unit 60 generates a table based on the result matched by the area comparison unit 50,
The data is transferred to the display unit 30. A table is generated based on the result matched at the time of table creation. When the coordinate points of the two region files 10 match, the table adds a mark to the intersection of the boundary coordinate points of the two region files, and generates a boundary table that is blank when they do not match. The coordinate data is set as an error candidate.

The display section 30 displays the transferred table display data. As the display data, in addition to the boundary table display data, an area diagram indicating a state in which two areas overlap or a blank area is generated, and partial contents of two area files 10 are displayed. The partial content indicates, when an error candidate is generated in the table creation unit, coordinate data of the n preceding and succeeding area files 10 including the error candidate. This makes it possible to determine whether the coordinate data is a true error or simply one coordinate in the area.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. [First Embodiment] As a first embodiment, a case where regions share a boundary line will be described. FIG. 2 is a diagram illustrating a first example of the contents of the area file A and the area file B according to the first embodiment of this invention. In the example shown in the figure, as coordinates indicating points on the map, in the area file 10A, A1 = (AX1, AY1), A2 = (AX2, AY2), A3 = (AX3, AY3), A4 = (AX4, AY4) ), A5 = (AX5, AY5), A6 = (AX6, AY6),... In the area file 10B, B1 = (BX1, BY1), B2 = (BX2, BY2), B3 = (BX3 , BY3), B4 = (BX4, BY4), B5 = (BX5, BY5), B6 = (BX6, BY6),.

In the following example, description will be made assuming that the area file 10A and the area file 10B are designated by the input unit 20. The file selection unit 40 stores the area file 10A and the area file 10B specified from the input unit 20.
Is read, and the coordinate data shown in FIG.
Transfer to

The area comparing section 50 is configured to store the area file 10A and the area file 10B transferred from the file selecting section 40.
Are matched in order. At this time, the data order of the coordinate data of the area file 10A and the area file 10B is determined in advance according to a predetermined rule, and the area comparison unit 50 performs the matching by reading the data from the head of the files 10A and 10B sequentially. Do. As the predetermined rule, it is assumed that the order of the arrangement of the coordinate data is clockwise, counterclockwise, or the rule from the top to the bottom of the map.

The area comparison unit 50 determines whether the coordinate data of the area file 10A matches the coordinate data of the area file 10B at the time of comparison, and transfers the result to the table generation unit 60. Based on the result of the comparison by the area comparison unit 50, the table generation unit 60
As shown in FIG. 3, ● is given to the intersection of the coordinate data of the area file 10A and the coordinate data of the area file 10B. If the collation result passed from the area comparison unit 50 does not match, nothing is entered at the intersection.

In the example of FIG. 3, coordinates A1 and B1,
The coordinate points of the coordinates A2 and B2, the coordinates A3 and B3, the coordinates A4 and B4, the coordinates A5 and B5 match, and the coordinates A6 and B6 do not match. When this is developed into a region, it becomes as shown in FIG. FIG. 4 shows an example of the first embodiment of the present invention in the case where the boundary line is shared, and the thick line portion indicates the shared boundary line.

In this example, A1 = (AX1, AY1) and B1 = (BX1, BY1) A2 = (AX2, AY2) and B2 = (BX2, BY2) A3 = (AX3, AY3) and B3 = (BX3, BY3) A4 = (AX4, AY4) and B4 = (BX4, BY4) A5 = (AX5, AY5) and B5 = (BX5, BY5) A6 = (AX6, AY6) and B6 = (BX6) , BY6) do not match, and correspond to positions outside the regions A and B,
Regions A and B are generated respectively.

The table generator 60 transfers the table shown in FIG. Thus, the display unit 30 can recognize the coordinates of the overlapping area by displaying the table information. In addition, by transferring the coordinate data of the two regions shown in FIG. 4 to the display unit 30 by connecting them with a line as a region diagram, it is possible to more explicitly confirm the overlapping state. FIG.
, The data of the area A and the data of the area B are compared in a matrix, and as a result, the blank coordinate points B6 and A6 have
Is not described, it is understood that the boundary line is not shared at this coordinate point.

[Second Embodiment] A case where there is a blank area at the boundary will be described as a second embodiment. In the example below,
The description will be made assuming that the area file 10A and the area file 10B are designated by the input unit 20. FIG. 5 is a diagram illustrating an example of the contents of the area file A and the area file B according to the second embodiment of this invention. In this example, the coordinate points of the coordinate points A3 and B3 do not match (AX3, AY
3) Description will be made assuming that ≠ (BX3, BY3).

The file selecting section 40 reads the designated area file 10A and area file 10B from the input section 20, and transfers the coordinate data shown in FIG. The area comparison unit 50 sequentially compares the contents of the area file 10A and the contents of the area file 10B transferred from the file selection unit 40. At this time, the area file 1
0A and the coordinate data of the area file 10B are determined in advance in a data order according to a predetermined rule.
Performs matching by reading from the head data of each of the files 10A and 10B.

The area comparing section 50 determines whether the coordinate data of the area file 10A matches the coordinate data of the area file 10B at the time of comparison, and transfers the result to the table generating section 60. Based on the result of the comparison by the area comparison unit 50, the table generation unit 60
As shown in FIG. 6, ● is given to the intersection of the coordinate data of the area file 10A with the coordinate data of the area file 10A. If the collation result passed from the area comparison unit 50 does not match, nothing is entered at the intersection.

In the example of FIG. 6, coordinates A1 and B1,
Coordinates A2 and B2, Coordinates A4 and B4, Coordinates A5
And the coordinate point of the coordinate B5 do not match, and the coordinate A3 and the coordinate B3 do not match, and the coordinate A6 and the coordinate B6 do not match. When this is expanded to a region, the result is as shown in FIG. FIG. 7 shows an example of the first embodiment of the present invention in which the boundary line is shared, and the bold line indicates the shared boundary line.

In the example of FIG. 7, a blank area is created because the coordinates A3 and B3 do not match. For example, if this is a map representing territorial waters, a blank area cannot exist, so that the coordinates A3 and B3, which are responsible for generating the blank area, are recognized as being in error.
In order for the user to recognize this error, the table generation unit 60 performs a display indicating that the coordinates A3 and B3 of the read area file 10A and area file 10B are errors. In the present embodiment, as shown in FIG. 8, the data of the area file 10A and the area file 10B are displayed on the display unit 30, and further, an error (including an error candidate) is displayed.
A display indicating that the coordinate data is an error candidate, such as a shaded display, an inverted display, or a blink display, is performed on the data of the coordinates A3 and B3.

In the example of FIG. 8, the area file 10
A and 10B are displayed starting from the first data, but if the amount of coordinate data is large, it is impossible to display all data on the same screen, so that error (including error candidates) coordinate data Are displayed before and after n.
For example, by setting to display five pieces of coordinate data before and after the coordinate data in error, and by recognizing the relationship before and after the coordinate data in error, the coordinate data is actually displayed in error. Can be determined. In the example shown in FIG. 8, the error candidate (A
3, B3), the first two of the error candidate and the second three
It is also possible to display the coordinate data of the case together.

Thus, from the coordinate data before and after the error candidate, whether the error candidate is a true error, or
It is possible to determine whether the coordinate data is correct. Further, the display unit 30 displays the input area file 10
By displaying the data, the area map, and the n pieces of coordinate data before and after the error candidate in the area file 10 including the error candidate together on one screen, it becomes easier to confirm the error.

By performing such an error display,
It is possible to easily recognize which coordinate data in the area file 10 is in error. This will be described below using a specific example. The area file 10A and the area file B10B have coordinate data as shown in FIG. As a result of inputting the coordinate data of the area file 10A and the area file 10B shown in FIG. 9, a blank area exists as shown in FIG. In the example of FIG. 10, the coordinate point (1,
5), (2,5), (4,5), and (5,5) are boundary points shared by the area file 10A and the area file 10B, and the coordinate points (3,6) and (3,8) are Area file 1
0A, coordinate points (3, 4),
(3, 2) is a point designated by the area file 10B.

At this time, the table generated is, as shown in FIG. 6 described above, coordinate points (A3, B3) (= (3,
6), (3, 4)), ● is not given,
● is discontinuous. That is, the discontinuous portion is shown in FIG.
It becomes a blank area as shown in FIG. As described above, in order to specify the coordinate data of the area file that has become the error candidate, as shown in FIG. 11, the coordinate data (A3, B3) of the area file is blinking displayed as an error display, and the coordinate data is displayed. The area file 10A and the area file 10B of the first two data and the last three data
Are displayed together.

Further, since it is possible to simultaneously display FIGS. 9, 10 and 11 on one display screen,
For example, the operator can dynamically rewrite the data of the area file 10 shown in FIG. Although the above embodiment has been described based on the configuration shown in FIG. 1, the file selection unit 40, the area comparison unit 50, and the table generation unit 60 of the configuration requirements shown in FIG. Alternatively, the program may be stored in a portable storage medium such as a floppy disk or a CD-ROM and used for general purposes.

It should be noted that the present invention is not limited to the above-described embodiment, but can be variously modified and applied within the scope of the claims.

[0037]

As described above, according to the area overlap judging device of the present invention, it is possible to prevent an operator from making a mistake in data input by using coordinate data registered in a file in advance as input data. is there. Also, by reading the coordinate data from the files corresponding to the two areas according to the present invention and comparing the two coordinate data, if there is an error in the coordinate data in the file,
Since the marks are output discontinuously in the table, it is possible to easily determine which data has an error or the like.

Further, the present invention displays the coordinate data of the read area file with respect to the coordinate data at which the mark becomes discontinuous in the table and specially displays the data in error, thereby enabling the operator to perform the operation. It is possible to easily recognize the error data in the area file without tracing the coordinate data from the table.

According to the present invention, when specially displaying data that has become an error candidate, n
By also displaying the coordinate data of the case, it is possible to determine from the order of the displayed coordinate data whether the error candidate is an error or valid coordinate data. Further, since the present invention inputs coordinate data by a file, it is possible to use data in which detailed coordinate points are designated as input data without requiring any human input, as in the related art, The error from the actual area is reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an area overlap determination device of the present invention.

FIG. 2 is a diagram illustrating an example of contents of an area file A and an area file B according to the first embodiment of this invention.

FIG. 3 is a diagram illustrating an example of an area table according to the first embodiment of this invention.

FIG. 4 is a diagram illustrating an example of a case where a boundary line is shared according to the first embodiment of this invention.

FIG. 5 is a diagram illustrating an example of contents of an area file A and an area file B according to the second embodiment of this invention.

FIG. 6 is a diagram illustrating an example of an area table according to a second embodiment of this invention.

FIG. 7 is a diagram showing an example of a case where a boundary line is shared according to the second embodiment of the present invention.

FIG. 8 is an example of an error display according to the second embodiment of the present invention.

FIG. 9 is a diagram showing a specific example of an area file according to an embodiment of the present invention.

FIG. 10 is a diagram showing an example in which a blank area exists in one embodiment of the present invention.

FIG. 11 is a diagram showing a specific example of an error display of an area file according to an embodiment of the present invention.

FIG. 12 is a diagram for explaining a conventional problem.

[Explanation of symbols]

 Reference Signs List 10 area file 20 input section 30 display section 40 file selection section 50 area comparison section 60 table generation section

Claims (6)

[Claims] 1. At least two area storage means having a plurality of coordinate data in an area, a storage means specification means for specifying two area storage means sharing an area among the area storage means, and a storage means specification A region display unit for comparing coordinate data of two region storage units designated by the unit, and displaying a boundary line overlap state as a two-dimensional table based on the comparison result. . 2. The state display means: a mark providing means for comparing the coordinate data of the area storage means of the two storage means, and adding a mark to the coincident coordinate data at the position of the intersection of the coordinate data on the table; Error determining means for determining coordinate data at which the mark provided by the mark providing means is discontinuous as an error candidate; table display means for displaying a table provided with the mark by the mark providing means; 2. An area overlap judging apparatus according to claim 1, further comprising: an error display means for displaying an error candidate in the coordinate data of the area storage means which is an error candidate by the means. 3. The state display means includes area display means for displaying a shared area and / or a blank area of two areas based on the input coordinate data of the two area storage means. Region overlap judgment device. 4. The error display means includes means for displaying coordinate data before and after the error candidate including the error candidate and performing special display including reverse display and blinking display for the error candidate. The apparatus according to claim 2, wherein 5. The area overlap judging device according to claim 1, wherein the area storage means holds coordinate data having a sequence in a predetermined order. 6. A storage process designating process for designating two region storages that share a region among at least two region storages having a plurality of coordinate data in the region, and a process designated by the storage process designating process. A state display process of comparing coordinate data of two area storage means and displaying an overlapping state of the boundary line as a two-dimensional table based on the comparison result.