JP2002024363A - Geographic information system for contact line retrieval - Google Patents

Abstract

(57) [Summary] PROBLEM TO BE SOLVED: To represent evaluation target land and route shape by multiple coordinate points
And contact the land to be evaluated by specifying the land to be evaluated
And the length of the contact between the land and the land to be evaluated
The obtained contact route search geographic information system is provided. SOLUTION: A storage unit 2, a search processing unit 1, a display unit 4, an input unit,
The power unit 3 is provided, and the storage unit 2 stores constituent coordinates of each evaluation target land.
Vector data file 2 storing points etc.₁, Of each line
Attribute information file 2 storing constituent coordinate points, etc._Two, By region
Route width file 2 which stores the maximum route width of each route
_ThreeAnd the search processing unit 1 includes the route search unit 1 _Two,vector
Data search unit 1_Three, Attribute information search unit 1_Four, Maximum line width inspection
Cord 1_FiveDesignation of the evaluation target land by operation of the input unit 3
And the maximum of all routes within the jurisdiction of the designated evaluation target land
When the route width is specified, the route search unit 1_TwoIs the land to be evaluated
All the routes that touch and the routes that are in contact with the land to be evaluated
Search length.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a geographic information system for contact route search, and more particularly, to determining a land price of a land to be evaluated, all the routes in contact with the land to be evaluated and the land to be evaluated are included in those routes. The present invention relates to a contact route search geographical information system capable of acquiring a contact length.

[0002]

2. Description of the Related Art Generally, when setting a fixed asset valuation value for each land, the shape and size of the land to be evaluated, the presence or absence of a line in contact with the land to be evaluated, and the presence of a line in contact with the land to be evaluated are considered. The length of contact between the land to be evaluated and its route,
The decision was made with reference to the land price of the route near the land to be evaluated.

[0003] By the way, the existing fixed asset valuation setting means measures the frontage and the depth of the evaluation target land individually when obtaining the shape and size of the evaluation target land. Measurement errors have been added, and the width and depth cannot be measured accurately depending on the shape, and moreover, many workers and many measurement times are required for the measurement.

In order to eliminate the various difficulties of the existing fixed asset valuation setting means, a geographical system is used to determine the frontage and depth of the land to be evaluated and other necessary items. That means,
It is disclosed by JP-A-2000-40102.

The means disclosed in Japanese Patent Application Laid-Open No. 2000-40102 represents each shape of the evaluation target land by a plurality of coordinate points, and specifies the shape of the evaluation target land using these coordinate points. Even if the land to be evaluated is irregular, the frontal line between the contact area between the land to be evaluated and the line in contact with the land is input and set using an input device such as a mouse to obtain a rectangular assumed shaped land. Calculate the shade area from the difference between the plot area of the assumed shaping area and the actual plot area of the evaluation land, and divide the calculated shade area by the plot area of the evaluation land to calculate the shade ratio. The calculated value of the land to be evaluated is set in consideration of the correction value of the irregular land obtained from the shade ratio in the road value of the adjacent road.

[0006]

The above-mentioned Japanese Patent Application Laid-Open No. 2000-4
Since the means disclosed in No. 0102 uses a geographical system, once a plurality of coordinate points representing the shape of each land to be evaluated are input, a fixed asset valuation of the land to be evaluated is set. Designate the land to be evaluated, and enter the frontage line of the land to be evaluated where the land to be evaluated and the line in contact with the land to be evaluated contacted with an input device such as a mouse. It is possible to set the valuation value of the evaluated land.

However, Japanese Patent Laid-Open No. 2000-40102 discloses
In addition to the method of designating the land to be evaluated, it is necessary to manually operate an input device such as a mouse in order to specify a frontage line between the designated land to be evaluated and a route in contact with the land. It is necessary to specify the number of times.

The means disclosed in Japanese Patent Laid-Open No. 2000-40102 specifies a frontage line between a designated land to be evaluated and a route in contact with the land. Therefore, a frontage line is specified depending on the shape of the land to be evaluated. In some cases, it may be difficult to do so, and it may not be possible to uniquely set the valuation value of the land to be evaluated.

The present invention has been made in view of such a technical background, and its object is to simply perform the operation of designating the evaluation target land by expressing the evaluation target land and the shape of the route with a plurality of coordinate points, respectively. Accordingly, it is an object of the present invention to provide a contact route search geographic information system capable of obtaining all routes in contact with an evaluation target land and a length of contact between the evaluation target land and those routes.

[0010]

To achieve the above object, a contact route search geographic information system according to the present invention comprises a storage unit, a search processing unit, a display unit, and an input unit. The unit stores a vector data file that stores the configuration of each evaluation target land at coordinate points, an attribute information file that stores the configuration of each route at coordinate points, and stores the maximum route width of the route for each municipality A search processing unit includes a vector data search unit that searches for a vector data file, an attribute information search unit that searches for an attribute information file, and a maximum route width search that searches for a maximum route width file. Section and a route search section that searches for routes that contact each land to be evaluated and the length of contact with them. Designation of the land to be evaluated by operation of the input section, and all of the areas within the jurisdiction of the specified land to be evaluated By specifying the maximum route width of the line, the route search unit searches for all routes that contact the land to be evaluated and the length of each route that contacts the land to be evaluated, and displays the search result on the display unit Is provided.

According to the above means, the shape of each land to be evaluated and the shape of each route are represented by a plurality of coordinate points, and the route width of all the routes at that time is equal to the maximum route width of the jurisdiction area. When searching for a route that is in contact with the land to be evaluated, it is determined whether the route is in contact with the land to be evaluated based on whether or not there is an overlap between the land to be evaluated and the rectangular line. In addition, a boundary side of a plurality of evaluation target lands constituting the portion is obtained from an overlapping portion of the evaluation target land and the rectangular route, and a boundary side parallel to the relevant route among the obtained boundary sides is obtained. Is automatically determined for its length. For this reason, it is possible to obtain the route in contact with the land to be evaluated and the length of contact between the land to be evaluated and the line in contact with it by simply performing one operation, and the route of the line in the jurisdiction of the land to be evaluated. It is possible to set an accurate fixed asset valuation value for the land to be evaluated based on the price, the length of contact with the route, and the like.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a contact route searching geographic information system according to an embodiment of the present invention.

[0014] In FIG. 1, 1 is the search processing unit 1 ₁ controller, 1 ₂ route search unit, 1 ₃ vector data retrieval unit, 1 ₄ attribute information searching unit, 1 ₅ the maximum line width retrieval unit ,
2 storage section, 2 ₁ vector data file, 2 ₂ attribute information file, 2 ₃ is the maximum line width table, 3 input section, 4 denotes a display unit. In this case, the search processing unit 1 includes a control unit 1 _1, a route search unit 1 _2, and vector data retrieval unit 1 _3, the attribute information retrieval unit 1 _4, the maximum line width retrieval unit 1 ₅
The storage unit 2 stores the vector data file 2 ₁
If, as the attribute information file 2 _2, maximum line width table 2 ₃
Consists of

[0015] Then, the control unit 1 ₁ is connected to the route search part 1 ₂ and the vector data retrieval unit 1 ₃ and the attribute information retrieval unit 1 ₄ and the maximum line width search section 1 _5, the input unit 3 and the display section 4 Is also connected. Vector data retrieval unit 1 ₃ is connected to the vector data file 2 _1, attribute information search section 1
₄ is connected to the attribute information file 2 _2, the maximum line width search section 1 ₅ is connected to the maximum line width table 2 _3.

Next, FIGS. 2A to 2C are diagrams shown in FIG.
Shown vector data file 2₁, Attribute information file 2
_Two, Maximum route width table 2_ThreeThat shows an example of the stored contents of
(A) is a vector data file 2₁of
(B) Attribute information file 2_Twoof
(C) Maximum route width table 2 _Three
Shows a very small part of the stored contents of.

[0017] As shown in FIG. 2 (a), the vector data file 2 _1, evaluated land A1, A large number g
2,..., And Ag are stored in order. First, for the evaluation target land A1, its vector type ID (identification symbol or number representing this evaluation target land A1) and coordinate points The number of components k, the coordinates of the first point (X1, Y1), the coordinates of the second point (X2, Y2),
..., The coordinates (Xk, Yk) of the k-th point are sequentially recorded,
Subsequently, in the evaluation target land A2, its vector type ID (identification symbol or number representing this evaluation target land A2), the number of coordinate points h, and the coordinates of the first point (X
1, Y1), the coordinates of the second point (X2, Y2),..., The coordinates of the h-th point (Xh, Yh) (the number h of the coordinate points,
(The coordinates of the first to h-th points are not shown in FIG. 1) are sequentially recorded, and thereafter, similarly, vector data for the other evaluation target lands A3 to Ag are sequentially recorded.

Further, as shown in FIG. 2 (b), the attribute information file 2 _2, lines of a number p L1, L2, ...
.., Attribute information for Lp is stored in order. First, for the route L1, its attribute type ID
(Identification symbol or number indicating the route L1), the number m of coordinate points, the coordinates of the first point (X1, Y1), the coordinates of the second point (X2, Y2),..., The coordinates of the m-th point ( Xm, Y
m), route value, district classification, route number, other 1, other 2, ... are sequentially recorded, and subsequently, for route L2, its attribute type ID (identification symbol or number representing this route L2), The number n of the coordinate points, the coordinates of the first point (X1, Y1), the coordinates of the second point (X2, Y2),...
..., the coordinates of the n-th point (Xn, Yn), the road value, the district classification,
The line numbers, other 1, other 2,... (The number m of coordinate points to other 2 are not shown in FIG. 1) are sequentially recorded, and thereafter, similarly to other lines L3 to L3. Attribute information for Lp is sequentially recorded.

Furthermore, as shown in FIG. 2 (c), the maximum line width table 2 _3, lines a number p L1, L2, ...
.., The maximum line width for each area in Lp is stored. First, for the line L1, the maximum line width of 30 m in the A prefecture and the B city, and the maximum line width of 50 m in the C prefecture and the D town are sequentially recorded. Subsequently, the maximum line width in another city or another town or village of the same prefecture or another prefecture is sequentially recorded, and thereafter, similarly, the maximum of each city, town and village for the other lines L2 to Lp is similarly calculated. Route widths are sequentially recorded.

[0020] Next, FIG. 3 is a flow chart showing the operation history of the control unit 1 ₁ of the search processing unit 1 in the contact route search geographic information system illustrated in FIG.

Using the flowchart shown in FIG. 3,
The operation performed in the contact route search geographic information system will be described.

First, in step S1, the display unit 4
Is clicked using the input unit 3 such as a mouse on the inside of the land to be evaluated, thereby extracting a land boundary line including the clicked point. The way of extraction at this time is
It is possible to select an evaluation target land after setting a detailed map sequentially from a wide area map. The means for extracting vector data including the clicked point is a known technical means, and extends from the coordinates of the clicked point in the X-axis and Y-axis directions to obtain a plurality of intersections with the vector. Among the multiple intersections, one vector with the shortest distance to the intersection is searched, and from the searched vector, another vector surrounding the coordinates of the clicked point is traced, and finally the first searched vector A closed area that coincides with the starting point of is extracted as a land to be evaluated. Such an extracting means is described in, for example, the 9th Functional Graphic Information System Symposium Lecture Paper “Multidimensional Geographic Information System” DIMSIS.
-EX "for Kobe City Nagata Ward disaster recovery situation management".

Next, in step S2, the control unit 1 ₁
Obtains the address of the evaluation target land from the coordinate value on the map clicked in response to an operation of the input unit 3 such as a mouse click inside the evaluation target land, which is an operation for extracting the vector data of the evaluation target land. and searches the maximum line width table 2 ₃ shown in FIG. 2 (c) the acquired address as a key,
The maximum route width of the route to be searched in the jurisdiction of the land to be evaluated is extracted.

Next, in step S3, the control unit 1
_1, the attribute information file 2 via the attribute information retrieval unit 1 _4
2 accesses, extracts the attribute information of one line from the attribute information file 2 _2.

Subsequently, in step S4, the control unit 1
₁ supplies the vector data of the subject land extracted in step S1, one route attribute information extracted in step S3, and, the route width of one line set at step S2 to the route searching unit 1 _2.

In a succeeding step S5, the control unit 1 ₁
Determines whether or not there is an overlapping portion between the land to be evaluated and one route by using each coordinate value forming the land to be evaluated and each coordinate value forming the first route. When it is determined that there is an overlapping portion (Y), the process proceeds to the next step S6. On the other hand, when it is determined that there is no overlapping portion (N), the process returns to the previous step S3.
The operation after step S3 is repeatedly executed. However, when re-executing the operation after step S3, one route in steps S3 to S5 is read as another route.

Next, in step S6, the control unit 1 ₁
Uses the respective coordinate values of the portion where the evaluation target land and one route overlap, and calculates the length of the overlapping portion parallel to one route. The calculated length is registered in the built-in memory (not shown in FIG. 1) as the length of the land to be evaluated in contact with one line. The details of the length calculating means will be described later.

Next, in step S7, the control unit 1
_{In step 1} , it is determined whether or not a route for determining the presence or absence of a portion overlapping with the evaluation target land remains. Then, when it is determined that such a route still remains (Y), the process returns to the previous step S3, and the operation after step S3 is repeatedly executed again. On the other hand, if such a route no longer remains. When it is already determined (N), this series of processing operations ends.

[0029] After this, the length in contact with the control unit 1 ₁ of the route adjacent to the registered evaluated land in the built-in memory and evaluated land and its routes, as appropriate, be read and displayed by the display section 4 When setting the fixed asset valuation value of the land to be evaluated, the attribute information file ₂₂
Which can set the fixed asset valuation by a predetermined formula using the land price of the line in contact with the land to be evaluated and the length of contact between the land to be evaluated and the line, etc. It is. The display on the display unit 4 may be such that the content of the execution is displayed at the stage of executing any of steps S1 to S7 or at the stage of executing all of steps S1 to S7.

Next, FIG. 4 is an explanatory diagram showing an example in which it is determined that the evaluation target land and two routes are in contact with each other by executing the flowchart shown in FIG.

Further, FIG. 5 is an explanatory diagram showing an example of the registered contents of the internal memory of the control unit 1 ₁ when it is determined that the evaluated land and two lines are in contact, in FIG. 4 This corresponds to the illustrated configuration.

As shown in FIG. 4, when the road L1 having a land price of 500 and the road L2 having a land price of 25 are in contact with the land A to be evaluated, a part of the land A to be evaluated and the maximum line width are set. Line L1 (an elongated rectangular shape having the shortest side as the maximum line width) partially overlaps, and the overlapping portion B
1 is formed, and similarly, a part of the evaluation target land A and a part of the line L2 (slim rectangular shape having the shortest side of the maximum line width) set to the maximum line width overlap, and the overlapping part B2 is formed. It is formed. At this time, the overlapping portion B1
Is obtained by calculating the length l ₁ parallel to the line L1 in the overlapping portion B1. Similarly, the route in the overlapping portion B2 is obtained. those obtained by calculating the parallel length l ₂ to L2, both, the coordinate values constituting the evaluation target land a and line L1,
The calculation is performed using the respective coordinate values constituting L2.

As shown in FIG. 5, the control unit 1₁Built-in
The registered content registered in the memory is a candidate number (N
o), land price, district classification, contacting part condition, contacting length
And, of the road price 500 listed in the candidate number 1
Line L1 is length l₁Is 15m and the candidate number
The length of the line L2 of the line price 250 listed in -2 is the length of contact
l _TwoIs registered to be 12 m.

FIG. 6 shows an overlapping portion B between the evaluation target land A and the route L, and the overlapping portion B
FIG. 9 is an explanatory diagram showing an example of a method of obtaining a length l at which a land A to be evaluated and a route L are in contact with each other when the shape is not rectangular.

As shown in FIG. 6, if there is a non-rectangular polygonal overlapping portion B between the evaluation land A and the route L, the boundary of the evaluation target land A in the overlapping portion B is set to three. Extracted as one side 1, side 2 and side 3, and one of the extracted three sides 1, 2 and 3 that is most parallel to the route L, in the illustrated example, side 2 was selected and selected. By calculating the length of the side 2, the length 1 where the evaluation target land A and the route L are in contact is determined. Also in this case, the length of the side 2, that is, the length 1 where the evaluation target land A and the route L are in contact with each other is calculated using each coordinate value forming the evaluation target land A and each coordinate value forming the route L. are doing.

It is to be noted that the direction (length direction) of the route L is not constant, and the shape of the route L is not rectangular but is constituted by a plurality of sides. In the case where a plurality of parts B overlapping with each other are obtained, one side most parallel to the route L in each of the overlapping parts B is selected, and the lengths of the selected sides are added to the evaluation target land A. And one length l at which the route L is in contact with is calculated.

As described above, according to the geographical information system for contact route search according to the present embodiment, the route in contact with the land to be evaluated, the route in contact with the land to be evaluated, and the route in contact with it are obtained by operating the input unit 3 only once. The exact fixed asset valuation value for the land to be evaluated is set based on the land price of the line in the jurisdiction of the land to be evaluated, the length of contact with the line, etc. It becomes possible to do.

[0038] In this contact route search geographic information system, operation program for controlling the operation of the control unit 1 _1,
Accompanying the control unit 1 ₁ ROM may be stored in (not shown in Figure 1), providing a storage medium that matches the operation program into one storage medium, the contact route search Geographic Information System If this storage medium is attached to the system at the time of use, the operation program stored in this storage medium can operate the geographic information system for contact route search.

[0039]

As described above, according to the present invention, the shape of each land to be evaluated and the shape of each route are represented by a plurality of coordinate points, and the route width of all the routes at that time is determined by the maximum route width of the jurisdiction area. When searching for a route that touches the land to be evaluated, the route is in contact with the land to be evaluated depending on whether or not there is an overlap between the land to be evaluated and the rectangular route. Is determined, and a boundary side of a plurality of evaluation target lands constituting the portion is obtained from an overlapping portion between the evaluation target land and the rectangular line, and the obtained boundary side The length of the boundary side parallel to the route is automatically obtained. Therefore, simply performing one operation,
The route in contact with the land to be evaluated and the length of the land in contact with the land to be evaluated and the line in contact with it can be determined, and based on the route value of the route in the jurisdiction of the land to be evaluated, the length in contact with the route, etc. Thus, there is an effect that it is possible to set an accurate fixed asset valuation value for the land to be evaluated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a contact route searching geographic information system according to the present invention, showing a main configuration of the contact route searching geographic information system.

FIG. 2 is an explanatory diagram showing an example of contents stored in a vector data file, an attribute information file, and a maximum route width table shown in FIG. 1;

FIG. 3 is a flowchart showing an operation process of a control unit of a search processing unit in the geographic information system for contact route search shown in FIG.

FIG. 4 is an explanatory diagram showing an example in a case where it is determined that the land to be evaluated and two routes are in contact with each other by executing the flowchart shown in FIG. 3;

FIG. 5 is an explanatory diagram showing an example of registered contents of a built-in memory of a control unit when it is determined that a land to be evaluated and two lines are in contact with each other.

FIG. 6 is an explanatory diagram showing an example of a method of obtaining a length of contact between an evaluation target land and a route when there is a non-rectangular overlapping portion between the evaluation target land and the route.

[Explanation of symbols]

1 search processing unit 1 ₁ controller 1 ₂ route search section 1 ₃ vector data retrieval unit 1 ₄ attribute information retrieval unit 1 ₅ maximum line width retrieval unit 2 memory unit 2 ₁ vector data file 2 ₂ attribute information file 2 ₃ maximum lines width Table 3 Input unit 4 Display unit

Claims (4)

[Claims] 1. A storage unit, a search processing unit, a display unit, and an input unit, wherein the storage unit stores a vector data file storing the configuration of each evaluation target land by coordinate points, Has an attribute information file storing coordinate points, and a maximum line width file storing the maximum road width of the line for each municipality. The search processing unit searches the vector data file. A vector data search unit, an attribute information search unit that searches the attribute information file, a maximum route width search unit that searches the maximum route width file, and a route that contacts each of the evaluation target lands and a length of the contact A route search unit that specifies the evaluation target land and specifies the maximum route width of all routes in the jurisdiction of the specified evaluation target land by operating the input unit. Is a contact route search geographic information system, wherein a search is made for all routes in contact with the evaluation target land and a length of contact between each route and the evaluation target land, and the search result is displayed on the display unit. 2. The configuration of each land to be evaluated is represented by a plurality of broken lines, and coordinate points at both ends of each broken line are stored in the vector data file. The geographical information system for contact route search described. 3. The contact route search according to claim 1, wherein the determination as to whether or not each evaluation target land and each route are in contact with each other is made based on an overlapping portion between the evaluation target land and the route. Geographic Information System. 4. A program for executing the geographical information system for contact route search according to claim 1, wherein the program searches for an evaluation target land specified by an operation of an input unit.
Operation, a second operation of searching the maximum route width of all routes in the jurisdiction of the evaluation target land by operating the input unit,
A program for performing a third operation for searching for all routes contacting the evaluation target land based on the first and second operations and a length of contact between each of the routes and the evaluation target land is recorded. Characteristic recording medium.