JPH0247775A - Drawing correcting device - Google Patents

Abstract

PURPOSE:To automatically correct the positions of respective facilities by comparing a first map with a second map, making the areas of the both graphic correspond, and determining the positions after the correction for the respective facilities according to a rule set beforehand based on the area corresponding data. CONSTITUTION:The first and second maps are respectively stored into first and second map data memory means 1 and 2, and first and second facility layouts are respectively stored into first and second facility layout memories 3 and 5. A town zone area corresponding means 8 compares the first map with the second map, and makes the both areas to correspond. A drawing correcting means 4 corrects the drawing based on the area corresponding data obtained by the town zone area corresponding means 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a drawing correction device that corrects an existing drawing to create a required drawing.

[Conventional technology]

When map data is processed by computer, usually administrative districts, roads, buildings, characters, etc. are created as separate data, and these are combined as necessary to extract composite data.

Figure 4 (a) is the first map that combines the block area and roads, and Figure 4 (b) is the first equipment layout diagram showing the locations of utility poles created based on this first map. , FIG. 4(c) shows an explanatory diagram showing the types of utility poles and their erected positions (coordinates in a coordinate system in which the horizontal axis is the Y axis and the vertical axis is the Y axis).A.

B, C, and D are block areas such as buildings, R, and R, respectively.

is a road, P+, Pg...P4 is a utility pole, and ○ and ◎ are marks indicating the type of utility pole.

FIG. 4(d) is a second map, which represents the same area as the first map, but the block area is E,
It changes to F and G. Therefore, it becomes necessary to correct the positions of utility poles in the first equipment layout based on such a second map.

As a device for correcting such drawings such as maps, the conventional 5th
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 the first map. Means 4 is a second equipment layout drawing with amendments added to the first equipment layout drawing.
5 is a second equipment layout drawing storage means for storing the second equipment layout drawing created by the drawing correction means 4;
6 is a display that displays maps and equipment layout drawings, 7
is a tablet for indicating one point on the screen of the display 6.

The drawing correction means 4 stores information from the first map data storage means 1 to the first map data storage means 1.
map (data), and the second map data storage means 2
The second map (data) is read from the first equipment layout drawing storage means 3, and the first equipment layout drawing (data) is read from the first equipment layout drawing storage means 3 and displayed in a combined state on the display 6 as shown in FIG.

FIG. 6 is an explanatory diagram showing a first map, a second map, and a first facility layout drawing superimposed on a display, with the first map shown as a solid line and the second map shown as a broken line. It shows. As is clear from this display, the utility pole P in the first equipment layout drawing created based on the first map shown by the solid line is located on the right side of the road R5 along the block area C, but is shown by the broken line. On the second map, the utility pole P is located inside the block area G.

Therefore, when correcting the position of this utility pole P with reference to the second map, the position to which it should be moved is determined according to predetermined conditions, and usually the block area G corresponding to the block area C is specified, This is done so that the positional relationship between the block area C and the utility pole P1 is also established in the block area G and the corrected utility pole P. Under these conditions, it is appropriate for the utility pole P to be located at a point a' on the right side of the road R3 along the block area G corresponding to the block area C.

Therefore, based on the above judgment, the operator selects each utility pole P, , P2Ps, Pa displayed on the display 6.
The user uses the tablet 7 to indicate the corrected position. For example, for utility pole P, when point a is first designated with the tablet 7, utility pole P is selected by checking the equipment layout data.

Next, point a' is designated with the tablet 7, and the X and Y coordinates of point a' are written in the position field of utility pole P in the equipment layout position data as shown in FIG. 4(c). This process is performed on each of the other utility poles P2. P,,P.

The equipment layout data resulting from the analysis is stored in the second equipment layout drawing storage means 5.

[Problem to be solved by the invention]

Conventional drawing correction devices are configured as described above, and the operator needs to use a tablet to instruct the corrected position of each piece of equipment one by one, which requires a great deal of time and effort. There was a problem.

This invention was made to solve the above problems, and the position of each piece of equipment is automatically corrected without the operator using a tablet to indicate the corrected position of each piece of equipment. The purpose of the present invention is to provide a drawing correction device.

[Means to solve the problem]

The drawing correction device according to the present invention includes an area mapping unit that compares a first map and a second map and associates the areas of the two maps, and area mapping data obtained by the area mapping unit. and drawing correction means for correcting the drawing based on the drawing.

[Effect]

In this way, the first map and the second map are compared, the areas of both drawings are associated with each other, and based on this area association data, each facility is corrected according to a predetermined rule. This allows the location to be determined.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on drawings showing embodiments thereof.

FIG. 1 is a block diagram of a drawing correction apparatus according to the present invention (hereinafter referred to as the present invention apparatus), in which 1 is a first map data storage means, 2 is a second map data storage means, and 3 is a first map data storage means. a first equipment layout drawing storage means determined based on a map of 4;
5 is the drawing correction means, and 5 is the second drawing correction means determined based on the second map.
equipment layout drawing storage means, 6 is a display, 8 is a first
This is a block area mapping means for determining the correspondence of block areas between the map and the second map.

The first map and the second map as shown in FIG. The figures are respectively stored in the first equipment layout drawing storage device 3.

Note that all map data is expressed as a collection of line segments from feature point to feature point. Here, the feature points are inflection points,
It means an end point, a branch point, etc., and for example, each line segment is represented by the X and Y coordinates of a starting point and an ending point.

The area mapping means 8 extracts geographical elements that define boundaries, for example, block areas (blocks) surrounded by roads, from the first map and the second map, and then extracts each block area between the two maps. Perform the mapping. An example of the mapping method is shown below.

First, for each of the first map and the second map, line segments are grouped by block area, and this is made into block data that includes the line segment number configuring each area and the center coordinates of the circumscribed rectangle of each area. .

To group line segments, for example, each block area is surrounded by roads, etc., forming a closed loop, and the X and Y coordinates of the starting and ending points of the line segments are tracked and processed. This is done by grouping the items that make up the closed loop.

Next, correspondence is established between the block areas A-D on the first map and the block areas E-G on the second map. This correspondence includes, for example, a one-to-one, one-to-many, or many-to-one correspondence between areas having the closest distances between the center coordinates of circumscribed rectangles for each block area.

That is, if we compare the block areas A, B, C, and D in Figure 4 (a) with the block areas E, F, and G in Figure 4 (d), we find that the block areas A, E, and It can be seen that the block areas C and G correspond to the block areas B, D and F, respectively.

The results of this correspondence are stored in an area correspondence diagram as shown in FIG. 2, and the correspondence between the block areas is completed. Note that the connections in FIG. 2 indicate correspondence relationships.

Next, the drawing correction means 4 corrects the facility layout drawing based on the block area correspondence data as shown in FIG. FIG. 3 is an explanatory diagram showing how to correct the equipment layout drawing. For example, when looking at utility pole P, FIG. 4 (A), (
When calculating the shortest distance from utility pole P1 to each block area A-D on the drawing shown in b), the block area located closest to utility pole P1 is C, and the closest location to utility pole P+ in this block area C is found. The point is the intersection Q with the line segment Ca when a perpendicular line is drawn from the position a of the utility pole PI to the line segment Ca of the block area C. Therefore, the block area corresponding to this block area C is investigated using the area correspondence diagram shown in Fig. 2, and the area G is specified. Drop a perpendicular line from Q to the line segment Ga and find its intersection Q2.

Next, move the utility pole P by the vector WT Buddha to position a#
to be located. That is, from position a to telephone pole P+, line segments Q, Q
, and the same distance as the line segments Q and Q. This makes Q+a, Q, and a' parallel and of equal length.

Therefore, a utility pole P, which is placed at a position a near the line segment Ca in the block area C shown by the solid line, is placed at a position a near the line segment Ga associated with the line segment Ca in the area G associated with the block area C. ``All you have to do is place it in the correct position.

In this way, it is possible to correct the positional relationship between the equipment and the edge line of the block area on the second map so that it does not become unnatural.

Note that the above is an example of how to find the point a, and the finding method is not limited to this. For example, by rearranging the vectors of the block area in a counterclockwise direction, point Q and point Q2 are vectors in almost the same direction. You may also add conditions to the method of finding, such as adding the above conditions to the conditions.

In addition, in the above-mentioned example, the position of the utility poles arranged along the city block area surrounded by roads on the map was explained.
It goes without saying that the present invention is not limited to this, and can be applied to various types of signs on maps.

Moreover, it can be applied not only to a block area but also to each house. Furthermore, it goes without saying that it can be applied not only to roads but also to areas divided by geographical elements defining boundaries such as rivers and drainage ditches.

〔Effect of the invention〕

As described above, according to the present invention, an area mapping means for correlating each area between two maps is provided, and drawings can be corrected for each area based on the area mapping data obtained by this area mapping means. Therefore, even if the operator does not indicate the corrected position of each equipment, the first equipment layout drawing based on the first drawing can be automatically corrected to the equipment layout drawing based on the second drawing. effective.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is an area correspondence diagram showing the correspondence of city block areas, Fig. 3 is an explanatory diagram showing the correction mode of the equipment layout drawing, and Fig. 4 (A). -(d) are explanatory diagrams of map data and equipment layout data, FIG. 5 is a block diagram showing a conventional drawing correction device, and FIG. 6 is an explanatory diagram 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 correspondence means Note that in the drawings, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] 1. If there is a positional shift between two types of maps representing the same area, the first map created based on the first map
correct the equipment layout drawing and create a second map that matches the second map.
In a drawing correction device that creates equipment layout drawings for It is equipped with an area correspondence means for making a correspondence for each area, and a drawing correction means for correcting the first equipment layout drawing to create a second equipment layout drawing based on the area correspondence data obtained thereby. A drawing correction device characterized by: