JPH0648492B2 - Drawing correction device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a drawing correction apparatus that corrects an existing drawing to create a required drawing.

[Conventional technology]

When the map data is processed by a computer, administrative districts, roads, buildings, characters, etc. are usually created as individual data, and these are taken out as combined data combined as necessary.

FIG. 4 (a) is a first map in which a block area and roads are combined, and FIG. 4 (b) is a first facility layout diagram showing the location of utility poles created based on this first map. 4 (c) is an explanatory view showing the types of electric poles and the standing positions (coordinates in the coordinate system shown for the X-axis on the horizontal axis and the Y-axis on the vertical axis). A, B, C, D Are the block areas such as buildings,
R ₁ and R ₂ are roads, P ₁ and P ₂ are utility poles, and ∘ and ⊚ are marks indicating the type of utility pole.

FIG. 4D shows the second map, which shows the same area as the area shown by the first map, but the block area is E,
It has changed to F and G. Therefore, it becomes necessary to correct the pole position of the first equipment layout drawing based on such a second map.

Conventionally, as a device for correcting drawings such as maps, the fifth
A device as shown in the figure has been proposed.

FIG. 5 is a block diagram showing a conventional drawing correction device,
In the figure, 1 is a first map data storage means, 2 is a second map data storage means, and 3 is a first equipment layout drawing storage that stores a first equipment layout drawing created based on a first map. Means 4 adds a correction to the first equipment layout drawing to make a second
Drawing correction means for creating a second equipment layout drawing conforming to the map of No. 5, second equipment layout storage means for storing the second equipment layout drawing created by the drawing correction means 4,
6 is a display for displaying maps and equipment layout drawings, 7
Is a tablet for designating one point on the screen of the display 6.

The drawing correction means 4 is provided from the first map data storage means 1 to the first map data storage means 1.
Map (data) of the second map data storage means 2
To the second map (data), and the first equipment layout drawing (data) from the first equipment layout drawing storage means 3 are read and displayed on the display 6 as shown in FIG.

FIG. 6 is an explanatory view showing the first map, the second map and the first equipment layout drawing by superimposing them on the display, and the first map is a solid line and the second map is a broken line. Shows. As is apparent from this display, the utility pole P ₁ in the first equipment layout drawing created based on the first map shown by the solid line is located along the block area on the right side of the road R ₁ , but is shown by the broken line. The utility pole P ₁ is located inside the block area G on the second map.

Therefore, when correcting the position of the telephone pole P ₁ based on the second map, the position to be moved is determined according to a predetermined condition, and usually the block area G corresponding to the block area C is specified. The positional relationship between the block area C and the utility pole P ₁ is maintained as it is in the block area G and the corrected utility pole P ₁ . Under these conditions, it is appropriate that the electric pole P ₁ is located at the point a ′ that is on the right side of the road R ₁ along the block area G corresponding to the block area C. Therefore, the operator uses the tablet 7 to indicate the corrected position to each of the electric poles P ₁ , P ₂ , P ₃ , and P ₄ displayed on the display 6 based on the above determination. For example, for the utility pole P ₁ , first, the point a is displayed on the tablet 7
, The utility pole P ₁ is selected by checking the equipment layout data.

Next 'to instruct the tablet 7, point a' point a X a, Y coordinate is written to the position field of the utility pole P ₁ of such equipment arrangement position data shown in FIG. 4 (c). The equipment layout data obtained as a result of performing this processing for each of the other electric poles P ₂ , P ₃ , P ₄ is stored in the second equipment layout drawing storage means 5.

[Problems to be Solved by the Invention]

Since the conventional drawing correction device is configured as described above, it is necessary for the operator to instruct the corrected position for each piece of equipment one by one using the tablet, and therefore the correction requires a lot of time and labor. There was a problem.

The present invention has been made to solve the above problems, and the position of each equipment is automatically corrected even if the operator does not use the tablet to indicate the corrected position for each equipment. An object is to provide a drawing correction device.

[Means for Solving the Problems]

The drawing correction device according to the present invention stores an area associating unit that compares the first map and the second map and associates the two areas with each other, and the area associating data obtained by the area associating unit. And a drawing correction means for correcting the drawing.

[Action]

The present invention thus compares the first map and the second map, and the areas of both drawings are associated with each other, and the areas after correction for each facility are corrected according to a predetermined rule based on the area association data. The position can be determined.

〔Example〕

Hereinafter, the present invention will be specifically described with reference to the drawings illustrating the embodiments.

FIG. 1 is a block diagram of a drawing correction device according to the present invention (hereinafter referred to as the device of the present invention), in which 1 is first map data storage means, 2 is second map data storage means, and 3 is first. Means for storing the first equipment layout drawing determined based on the map of 4
Is the drawing correction means, and 5 is the second determined based on the second map.
Facility layout drawing storage means, 6 is a display, and 8 is a first
It is a block area associating unit that obtains a correspondence of a block area between the map and the second map.

The first map and the second map as shown in FIGS. 4 (a) and 4 (d) are respectively stored in the first map data storage means 1 and the second map data storage means 2 and the first facility arrangement. The drawings are stored in the first equipment layout drawing storage device 3, respectively.

Each map data is represented as a set of line segments from the characteristic points to the characteristic points. Here, the characteristic point is the bending point,
It means an end point, a branch point, etc. For example, each line segment is represented by X and Y coordinates of a start point and an end point.

The area associating unit 8 extracts a geographical element defining a boundary, for example, a block area (block) surrounded by roads from the first map and the second map, and then extracts each block area between both maps. Are associated with each other. An example of the association method is shown below.

First, with respect to each of the first map and the second map, line segments are grouped for each block area, and this is used as block data including the line segment numbers forming each area and the center coordinates of the circumscribed rectangle of each area. .

For grouping line segments, for example, the X and Y coordinates of the start and end points of the line segment are tracked by utilizing the fact that each block area is surrounded by roads and the like and forms a closed loop. , Closed loops are grouped into one group.

Next, the block areas A to D on the first map and the block areas E to G on the second map are associated with each other. In this correspondence, for example, the areas having the closest distances between the center coordinates of the circumscribing rectangles are associated with each block area including one-to-one correspondence, one-to-many correspondence, or many-to-one correspondence.

That is, comparing each block area A, B, C, D in FIG. 4 (a) with each block area E, F, G in FIG. 4 (d), the block areas A and E It can be seen that the block areas C and G correspond to the block areas B, D and F, respectively.

The result of associating in this way is stored in the area correspondence diagram as shown in FIG. 2, and the association between the block areas is completed. The connections in FIG. 2 show the correspondence.

Next, the equipment layout drawing is corrected by the drawing correction means 4 based on the block area correspondence data as shown in FIG. FIG. 3 is an explanatory view showing a correction mode of the equipment layout drawing. For example, as for the electric pole P ₁ , FIG.
When the shortest distance from the electric pole P ₁ to each block area A to D is obtained on the drawing shown in (b), the block area located closest to the electric pole P ₁ is C, and the electric pole P ₁ in this block area C is The point closest to is the intersection Q ₁ with the line segment Ca when the perpendicular line is drawn from the position a of the telephone pole P ₁ to the line segment Ca of the block area C. Therefore, the block area corresponding to this block area C is examined using the area correspondence diagram shown in FIG. 2 to specify the area G. Next, a line segment Ga of the block area G corresponding to the line segment Ca is determined, and a perpendicular line is drawn from the point Q ₁ to the line segment Ga to obtain an intersection Q ₂ thereof.

Next, take the pole P ₁ as a vector By moving only to the position a ″. That is, the utility pole P ₁
A line segment from position a Parallel to and a line segment Move the same distance as. This gives Q ₁ a and Q ₂ a ″
Are parallel and of equal length.

Thus, the utility pole P ₁ arranged at the position a near the line segment Ca in the block area C shown by the solid line is a near the line segment Ga associated with the line segment Ca in the area G associated with the block area C. ″
It should be arranged at a position.

By doing so, it is possible to correct the positional relationship between the facility and the edge line of the block area in the second map so as not to be unnatural.

Note that the above is an example of how to obtain the point a ″, and the way of obtaining is not limited to this. For example, the line segment group of the block area constitutes a closed loop, and this is vectorized in the counterclockwise direction.
A condition may be added to the method of obtaining, such as a condition that the points Q ₁ and Q ₂ are on the vectors in substantially the same direction.

In the above-mentioned embodiment, the arrangement position of the electric poles arranged along the block area surrounded by the road of the map has been described.
Of course, the present invention is not limited to this, and can be applied to various signs on a map.

Further, the present invention can be applied not only to the block area but also to each house. Further, it is needless to say that the present invention can be applied not only to roads but also to areas divided by geographical elements that define boundaries such as rivers and drains.

〔The invention's effect〕

As described above, according to the present invention, the area associating means for associating each area between the two maps is provided, and the drawings can be corrected for each area on the basis of the area associating data obtained by the area associating means. Therefore, even if the operator does not specify the corrected position for each piece of equipment, it is possible to automatically correct the first equipment layout drawing based on the first drawing to the equipment layout drawing based on the second drawing. is there.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a region correspondence diagram showing a correspondence relation of block regions, FIG. 3 is an explanatory diagram showing a correction mode of equipment layout drawings, and FIG. 4 (a). (D) is an explanatory view of map data and equipment arrangement data, FIG. 5 is a block diagram showing a conventional drawing correction apparatus, and FIG. 6 is an explanatory view showing a conventional drawing correction mode. 1 ... First map data storage means, 2 ... Second map data storage means, 3 ... First equipment layout drawing storage means, 4
...... Drawing correction means, 5 ...... Second equipment layout drawing storage means, 6 ...... Display, 8 ...... Block area associating means In the drawings, the same reference numerals indicate the same or corresponding portions.

Front page continuation (72) Inventor Yoji Maeda 5-1-1, Ofuna, Kamakura-shi, Kanagawa Mitsubishi Electric Corporation Information Electronics Laboratory (72) Inventor Maeda 5-1-1, Ofuna, Kamakura-shi, Kanagawa (56) References JP 61-199172 (JP, A) JP 1-240983 (JP, A)

Claims (1)

[Claims] 1. When there is a displacement between two types of maps representing the same area, the first equipment layout drawing created based on the first map is corrected to obtain the second map. A drawing amendment device for creating a second equipment layout drawing that matches a map, in which areas of the first map and the second map that are surrounded by geographical elements that respectively define boundaries such as roads are extracted. Then, the first equipment layout drawing is corrected to create the second equipment layout drawing based on the area mapping means for matching each area of both maps and the area mapping data obtained by this. A drawing correction apparatus comprising: a drawing correction unit.