JP2753250B2 - Drawing management method and apparatus - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a drawing management method and apparatus for digitizing and managing facility drawings such as water and gas piping systems, electricity and telephone wiring systems.

[Conventional technology]

2. Description of the Related Art Conventionally, status management of facilities such as piping such as water supply, gas, electricity, telephone, and wiring systems has been performed using drawings drawn on paper or polyester film. At this time, if a change occurs in the facility, it is necessary to correct the drawing. All the work of correcting the drawings must be performed manually, which requires much labor and time, and has a problem that the rate of erroneous writing is high. In order to solve this problem, for example, as described in Japanese Patent Publication No. 61-9667, it has been proposed to convert facility drawings into digital information and manage them. In order to manage and convert facility drawings into digital information, a number of facility drawings (topographic maps,
(System diagram, symbol diagram, etc.) are displayed on a display device on a monitor. In addition, the work of correcting the drawing is also displayed on the display device.

[Problems to be solved by the invention]

By the way, when a facility drawing is converted into digital information and managed, the facility drawing is stored in a file device, and a desired facility drawing is retrieved from the file device as needed, and the display device is displayed. In order to display a large facility drawing on a display device and to read the detailed drawing information, the target area must be enlarged to a human-readable size. For the enlargement operation, a method of enclosing the image with an arbitrary rectangular area or designating a target graphic to be enlarged and enlarging the image at a fixed magnification is performed. However, when sequentially checking the entire area of the displayed facility drawing in detail, since the rectangular area is specified each time the enlarging operation is performed in the above method, the area specification omission is likely to occur. In addition, there is a problem that if the enlargement operation is performed so as to partially overlap the designated area in order to prevent leakage, the number of enlargement operations increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a drawing management method and apparatus capable of simplifying an entire area expansion operation of a facility drawing and facilitating drawing management.

[Means for solving the problem]

According to the present invention, when a divided facility drawing is displayed on a display device, the displayed divided facility drawing is divided into meshes at regular intervals so that enlargement can be performed in units of the mesh.

[Action]

The display division facility drawing enlarges its area in units of mesh division. As a result, it is possible to enlarge the display of the facility drawing at a fixed magnification without specifying the enlargement area, and to enlarge the display without overlapping with other areas or omission of the display area. Therefore, it is easy to sequentially confirm the entire area of the facility drawing, and the operation can be easily performed. Further, since the mesh division unit is variable, it can be enlarged to a size that can be easily seen by an operator, and erroneous reading does not occur.

〔Example〕

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is a basic configuration diagram of a drawing management apparatus according to an embodiment of the present invention.

In FIG. 2, facility drawing data is stored in the file device 203. The facility drawing data includes graphic data such as a topographic map and a pipe map, and attribute data expressed by characters and numerical values such as a town name, a personal name, a pipe diameter, and a pipe type related to the figure. The stored graphic data is input from a drawing input device 204 which scans a drawing drawn on a paper at regular intervals, converts the drawing into gray scale according to the gray scale of the read data, obtains a digital image, and obtains coded data. Facility drawing is 3rd
It is made up of a plurality of drawings shown in FIG. The graphic data is shown in an orthogonal coordinate system as shown in FIG. 3 (b), and the lengths X ₀ and Y ₀ in the X and Y axis directions are determined by the drawing size. These graphic data have a data storage structure in which the road, the house frame, and the pipeline are hierarchically divided as shown in FIGS. These data are superimposed on each layer as necessary to form graphic data as shown in FIG. 4 (a). On the other hand, the attribute data is input to the file device 203 using a data input device 208 such as a keyboard 206 or a floppy disk capable of inputting data collectively. In order for the operator to operate the mouse 207 to display the drawing on the display device (CRT) 205, the operator first operates the mouse 207 to move the cursor CU to the function selection icon displayed on the CRT screen. To specify. When the "draw drawing" icon is specified, the central processing unit (CP
U) 201 retrieves the corresponding drawing data (graphic data and its attribute data) from the file device 203 and temporarily stores it in the main memory 202. The main memory 202 functions to store a program for executing processing such as screen data search and editing and data being processed. After the drawing data temporarily stored in the main memory 202 is edited by the CPU 201 in accordance with the effective display coordinates in the display area of the CRT 205, the CRT 2
Displayed at 05. The operator can know the contents of the target drawing from this display screen. By the way, in the CRT display area shown in FIG. 5B, the original size of the input drawing shown in FIG. 5C is often smaller than that in FIG. 5A. In order to grasp a detailed part, the part is enlarged and displayed as shown in FIG. 5 (c). For this purpose, the cursor CU is moved by the mouse 207 to specify an arbitrary rectangular area from the CRT display area in FIG. Specifically, the main memory
A part of the corresponding drawing data stored in 202 is enlarged / reduced through the CPU 201 and displayed on the CRT 205.

Next, an enlargement operation for retrieving the target drawing from the file device 203, displaying the drawing data on the CRT after editing, and further enlarging the display drawing to a legible size will be described with reference to FIG. .

FIG. 1 shows a main part of an embodiment of the present invention.
FIG. 4 is a diagram showing a part of a mesh designation enlargement processing unit of FIG. In FIG. 1, a display display surface 101 is a mouse operation icon area 102 for selecting a function for searching and correcting a target drawing, a drawing display area 103 for displaying a drawing searched by a mouse operation, and is currently displayed. And a mesh display 104 which divides the facility drawing into regions at regular intervals. The enlarged display of an arbitrary area of the mesh display 104 is processed according to the following procedure.

Using the mouse 207 shown in FIG. 2, a cursor CU that moves in one-to-one correspondence with the operation of the mouse 207 is moved to the icon area 102 on the display screen 101, and the icon area 103 is moved.
Command for selecting the "drawing search" icon in This selection command is sent to the file device 2 by the drawing search unit 105 in the CPU 201.
The corresponding drawing data is indexed from 03 and temporarily stored in the main memory 202. The display editing unit 111 edits the drawing data in accordance with the drawing display area 103 and displays the edited data in the drawing display area 103. First, operate the mouse 207 to select the icon of "Specify the number of mesh divisions" in the icon area 102, and then vertically and horizontally divide the mesh in order to enlarge and display the entire area of the display drawing without omission. Number icon area 102
Choose from This mesh division number is input to the mesh division number designation unit 106, and the mesh division number of the display drawing is determined. The mesh display coordinate determination unit 107 calculates the position coordinates of the mesh display in accordance with the mesh division number, and displays the mesh display 104 on the drawing display area 103 via the display editing unit 111.
I do. Next, the user operates the mouse 207 to move the cursor CU to an arbitrary mesh portion of the mesh display 104, and selects a designated mesh. The mesh designation unit 108 determines which mesh has been designated from the cursor coordinate position (X ₀ , Y ₀ ),
The area coordinates of the corresponding mesh are passed to the designated mesh area enlargement processing unit 109. The designated mesh area enlargement processing unit 109 performs coordinate conversion processing for enlarging the area coordinates to the entire area of the drawing display area 103, and displays the enlarged drawing in the drawing display area 103 via the display editing unit 111. On the other hand, the mesh automatic updating unit 110 is used when sequentially displaying the mesh divided drawing of the display drawing. The part performs an operation of selecting and displaying without specifying the corresponding mesh, and has a function of executing the operation easily and without error.

Next, the processing of the mesh display coordinate determination unit 107 will be described in the sixth section.
This will be described with reference to the drawings.

FIG. 6 is an example showing how the mesh division coordinates are determined when the number of mesh divisions in the display drawing is designated by operating the mouse 207. The graphic data of a display drawing is expressed in a rectangular coordinate system (X, Y), and assuming that the maximum value ( _Xa , _Xb ) of the drawing area is m, n in the X-axis and Y-axis directions, respectively. In the case of equal division (m and n are positive integers), the divided mesh width and the origin coordinates of each mesh area are determined as follows.

Mesh screen (i, j) of the origin _{coordinates: (X i0, Y j0)} = (l x × (i-1), l y × (i-1)) where, X _a: X-axis maximum value of the display figures Y _b: Y-axis maximum value m of the display figures, n: positive integer Figure 7 shows the actual display example of the mesh screen dividing the Figure 6. FIG. 7 (a) is an example of the entire display drawing, which is divided into four in the X and Y axis directions and divided into 16 meshes. FIG. 7 (b) is a partially enlarged display of the mesh, in which figures and characters can be clearly identified.

〔The invention's effect〕

As described above, according to the present invention, the drawing enlargement operation when displaying or modifying a facility drawing can be easily enlarged by a single operation and can be continuously performed by specifying a mesh position where the display drawing is meshed. Can be selected quickly when there are many repetitive operations. In addition, the width of the mesh can be changed arbitrarily and the size can be enlarged or reduced to an arbitrary size. Therefore, the size of a figure or a character can be easily viewed according to the user, and the present invention can be realized without giving any limitation to the user. Further, since there is no overlap or omission of the mesh areas, display omission and correction omission can be prevented.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a main part of one embodiment of the present invention, FIG. 2 is an overall block diagram showing one embodiment of the present invention, and FIG. 3 is a drawing configuration and graphic coordinates stored in a file device. FIG. 4 is a diagram showing the relationship between positions, FIG. 4 is a diagram showing the hierarchical structure of graphic data, FIG. 5 is a diagram showing the relationship between drawing and CRT display enlargement / reduction, and FIG. 6 is an example of mesh division coordinates of a display facility drawing. Figure, seventh
The figure is a diagram showing an example of an enlarged mesh division diagram. 101: Display screen, 102: Icon area, 10
3… Drawing display area, 104… Mesh display, 105… Drawing search unit, 106… Mesh division number designation unit, 107… Mesh display coordinate determination unit, 108… Mesh designation unit, 109 ……
Designated mesh region enlargement processing unit, 110: Mesh automatic updating unit, 111: Display editing unit, 201: CPU, 202: Main memory, 203: File device, 204: Drawing input device,
205 ... CRT, 206 ... Keyboard, 207 ... Mouse, 208
... Data input device.

Claims (3)

(57) [Claims] 1. A drawing management method for digitizing and managing drawing information of facility drawings and displaying a desired facility drawing on a display device, wherein the facility drawings to be displayed on the display device are arbitrarily arranged in a mesh form. A drawing management method, wherein a division state is displayed by dividing and a division region unit position divided by an operation input means is designated, so that the display device is enlarged and displayed for each division region unit. . 2. The drawing management method according to claim 1, wherein the division status display is mesh display. 3. A storage means for storing drawing information and attribute information of facility drawings as digital information, a display device for displaying drawing information of a desired facility drawing among the drawing information stored in the storage means. An operation input unit for giving an operation command to the facility drawing displayed on the display device, and a facility drawing to be displayed on the display device according to a command from the operation input unit is divided into an arbitrary number of meshes to perform mesh display processing. Mesh display processing means, enlarged display processing means for enlarging and displaying a divided area unit designated by the operation input means, display editing for displaying the mesh determined by the mesh display processing means and the facility drawing on the display device And a drawing management apparatus.