JP3199307B2 - Common data management method for CAD drawings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of managing common data of a CAD drawing, and more particularly to a method of managing graphic data included in each of a plurality of CAD drawings separately into common data and other graphic data.

[0002]

2. Description of the Related Art Computer-based design (hereinafter, referred to as CAD) is widely performed in various tasks, and drawing by CAD is also widespread. Referring to FIG. 4, an example of a conventional CAD drawing creation method includes a graphic input means 2 such as a mouse 2a, a working memory 5 for storing graphic data, and a display 3a and a plotter 3b for outputting the contents of the working memory 5. This is to output a CAD drawing created on the working memory 5 to the drawing output means 3 by repeatedly inputting graphic data from the input means 2 using the computer 1 having the drawing output means 3. CAD drawing to external storage device 10
The drawing file 15 can be stored in the working memory 5, and the CAD drawing can be corrected, if necessary. Reference numeral 17 in the figure denotes the external storage device 10
The address of the drawing file 15 above is shown.

[0003] In addition, in CAD drawings, for drawing management and the like,
Bibliographic information such as drawing names and dates is often incorporated as graphic data in the form of characters (hereinafter referred to as character data). One example of a conventional method of incorporating character data into a CAD drawing is that a computer 1 is provided with a character code input means 6 such as a keyboard, a code / character data conversion means 7 and a ROM 8 for storing character code character shapes. The corresponding character code is input from the code input means 6, the position and size of the character data to be incorporated are specified from the graphic input means 2, and the code / character data conversion means 7 converts the input character code into a character of a predetermined shape based on the ROM 8. The data is converted into data, and the character data having the predetermined shape is transformed into a designated size and incorporated into a designated position on a CAD drawing. However, the conventional character data embedding method requires two input operations of the code input means 6 and the graphic input means 2, so that the input requires time and skill as compared with a simple character code input in a word processor or the like. There was a problem.

The inventor of the present invention has developed a CAD drawing creation method in which character data can be easily input and corrected, and disclosed in Japanese Patent Application Laid-Open No. 8-137926. FIG. 4 shows a CAD drawing creation method of the publication. In FIG. 4, a character code string to be character data 21 in the CAD drawing is inputted as a code signal sentence 22 from the code input means 6, and a writing position instruction and a size instruction for each character of the character code string are inputted. The code / character data conversion means 7 inputs the character signal instruction 23 from the means 6 and the code signal text 22 based on the character data instruction 23 and the ROM 8.
To character data. According to the method of FIG.
Character data 21 on the drawing can be written relatively simply by inputting a code. In addition, a drawing management file 16 for managing bibliographic information of CAD drawings is provided in the external storage device 10, and each C
If the code signal sentence 22 and the character data instruction 23 of the bibliographic information of the AD drawing are registered for each drawing in the drawing management file 16, the bibliographic information of the CAD drawing is stored in the drawing management file 16 when the CAD drawing is created or corrected. And can be incorporated as character data 21. Each graphic file 15 in FIG. 4 includes character data 21 and graphic data 20 other than the character data 21.

[0005]

For example, in the construction field,
Usually, a large number of CAD drawings created for a building to be constructed are centrally managed on an external storage device, and a plurality of necessary drawings are specified among the many drawings (hereinafter referred to as a group of created drawings). In some cases, a plurality of drawings (hereinafter, referred to as an output drawing group) output by date and output by a specific date are stored and managed on an external storage device separately from the created drawing group. This is because the created drawing group is updated with time, while the output drawing group is stored in the state at the time of output. FIG. 3 schematically shows a method of storing and managing output drawing groups by construction object such as "building", by drawing purpose such as "estimated drawing", and by construction such as "electric construction" and "air conditioning construction". For example, a hierarchy (hereinafter, referred to as a directory) is provided on an external storage device in correspondence with a construction target, a drawing type, a construction, and the like, and output drawing groups can be managed by the directory. Further, on each drawing of the output drawing group, a date, a construction target, a drawing type, a construction and the like can be displayed and identified.

When the output drawing group is output from the created drawing group, the display of the date and the like is different even if the contents of the created drawing group need not be substantially corrected. It is necessary to change the display such as the date on the drawing. In this case, changes to be made to each CAD drawing are common and relatively simple. However, when the output drawing group is composed of, for example, 100 or more CAD drawings, it takes enormous time to change all the drawings. It takes time. In addition, there is a possibility that a human error or forgetting to correct may occur. Each C
When the only change to be made to the AD drawing is the change of character data, the change can be made only by inputting a code by the CAD drawing creation method of FIG. 4, but the method of FIG. 4 also requires a code input for each CAD drawing. Therefore, changing the data of an output drawing group including a large number of CAD drawings also requires labor and time.

SUMMARY OF THE INVENTION An object of the present invention is to provide a CAD drawing common data management method which can easily correct data common to a plurality of CAD drawings.

Referring to the embodiment shown in FIGS. 1 and 2, the common data management method for a CAD drawing according to the present invention comprises input means 2 and 6 for inputting graphic data, a work memory 5 for writing the graphic data, and A group of a plurality of N CAD drawings 4 created by the computer 1 having the drawing output means 3 for outputting the contents of the working memory 5 and the external storage device 10 is a drawing in which only the common data 28 included in the drawing group differs. Update and output as a group
And a method of managing the state at the time of output ;
The directory corresponding to the drawing group to be output is stored in the external storage device.
10; update / output under the formed directory
One common data storage 18 and N graphic data storage for storing the common data 28 other than the figure data 29 ₁ ~ 29 _N for each drawing included in the drawing group for storing common data 28 of the drawing groups which 19 _1-19 and _N provided; common data simultaneously the directory when reading the graphic data of one of the graphic data storage 19 _{1-19 N} under the directory to the working memory 5
Overlaid a common data 28 of the data storage area 18 as storage inhibition data
The data is read out to the working memory 5 by the computer.

[0009] Here, the external reference means the C in the working memory 5.
This is a data reading method in which data of another CAD drawing on the external storage device 10 is read from the external storage device 10 as the storage prohibition data in an overlapping manner on the working memory 5 for the AD drawing. Data read as an external reference (hereinafter, sometimes referred to as external reference data) is drawing output means in the same manner as data read by a normal reading method (hereinafter, sometimes referred to as normal read data). 3 can be output, that is, referenced, but unlike normal read data, storage in the external storage device 10 is prohibited.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to, for example,
N CAs that are updated and output by surface purpose, construction, and date
In correspondence with the D figures 4, one common to the external storage device 10 data storage 18 and N a graphic data storage area 19 ₁ ~ 19 _N provided in the common data 28 included in the N pieces of CAD drawing 4 Is stored in the common data storage area 18, and graphic data 29 _{1 to} 29 _N (hereinafter, sometimes referred to as unique data 29) other than the common data 28 included in each CAD drawing 4 are respectively stored in the graphic data storage area.
Store between 19 _{1 and} 19 _N. That is, the graphic data included in each CAD drawing 4 is stored in the form of common data 28 and unique data 29. Construction target, drawing type, construction, date in external storage device 10
Directories are formed corresponding to the attachments, and N + 1 storage areas 18, 19 _{1 to} 19 _N can be provided under each directory.

The common data stored in the common data storage area 18
Reference numeral 28 designates, for example, by directly specifying the address of the common data storage area 18 on the external storage device 10 from the input means (including the graphic input means 2 and the code input means 6), thereby saving the drawing file 15 shown in FIG. As in the case described above, the data can be read out to the working memory 5, corrected, and stored again. When the common data 28 is only character data, the common data 28 is converted to a code signal sentence as in the case of the drawing management file 16 in FIG.
22 and character data directive 23 can be stored in the common data storage area 18. An example of the common data 28 is date data YYMMDD commonly included in the N CAD drawings 4 as shown in FIG. However, the common data 28 is not limited to date data, and the common data 28 can include graphic data other than character data.

The common data 28 stores the unique data 29 stored in any of the graphic data storage areas 19 _{1 to} 19 _N in the working memory 5.
To the working memory 5 as an external reference
Is read out. The computer 1 of FIG. 1 has a common data detecting means 26 and an external reference reading means 25,
At the time of reading, the detecting means 26 detects the common data storage area 18 of the common data 28 corresponding to the unique data 29, and the reading means 25 reads the common data 28 from the detected common data storage area 18 as an external reference. An example of a method of detecting the common data area by the detecting means 26 is as follows.
The address of the common data storage area 18 on the external storage device 10 is stored together with the address 29, and the address is detected when the unique data 29 is read. It is also possible to store a correspondence table between the common data storage area 18 and the unique data storage area 19 in the detecting means 26 and detect the corresponding common data storage area 18 from the correspondence table. An example of the detecting means 26 and the reading means 25 used in the present invention is a program on the computer 1,
For example, it is also possible to use a program that collectively starts operation commands in conventional CAD software.

FIG. 2 schematically shows the relationship between the unique data 29 other than the date data read by the normal reading on the working memory 5 and the common data 28 consisting of the date data read by the external reference. . Both data are read out in an overlapping manner on the working memory 5 and can be output to the drawing output means 3 at the same time. In addition, the unique data 29 that is the normal read data can be corrected and the corrected data can be stored in the graphic data storage area 19 again. However, in this case, since the storage of the common data 28 as the external reference data is prohibited, the common data 28 is not erroneously stored in the graphic data storage area 19. In short, the common data 28 and the unique data 29 can be referred to at the same time, but are always stored separately. Therefore, it is possible to easily output a group of output drawings that differ only in common data such as the date from a group of created drawings including a large number of CAD drawings 4. In addition, saving of the common data in each graphic data storage area 19 is omitted, and one common data storage area 18 is sufficient. Therefore, saving of the storage area on the external storage device 10 can be expected.

[0014] Thus, the object of the present invention is to provide a plurality of CAs.
A common data management method for CAD drawings that can easily correct data common to D drawings "can be achieved.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG.
1 shows an embodiment of the present invention that can be read at different positions and / or sizes for each CAD drawing 4. That is, the incorporation position instruction 31 and the size instruction 32 of the common data 28 for each CAD drawing 4 are stored in each graphic data storage area 19, and the common data 28 is simultaneously read when the unique data 29 is read. Working memory 5 at the position and size according to the size instruction 32
Read out. For example, the built-in position instruction 31 and the size instruction 32 are detected by the detecting means 26, and the reading means 25 can convert the common data 28 into the detected position and size and write it to the working memory 5. In this case, it is sufficient to store only the data representing the shape of the code signal or the like corresponding to the common data 28 in the common data storage area 18. However, common data storage area 18
In this case, a signal having a predetermined mounting position and a predetermined size of the common data 28 can be stored. In this case, the predetermined mounting position is converted into a mounting position instruction 31 by the reading means 25 and the predetermined size is stored. Is converted into a size instruction 32, and the converted or enlarged / reduced common data 28 is written into the working memory 5.

[0016]

As described in detail above, the CA of the present invention
The common data management method for D drawings is to store the common data of a plurality of CAD drawings separately from the unique data of each CAD drawing,
Since the common data is read as an external reference at the same time as the reading of the unique data, the following remarkable effects are obtained.

(A) Data common to a large number of CAD drawings can be easily corrected, and a correction mistake or forgetting to be corrected can be prevented. (B) It is possible to easily output an output drawing group that differs only in common data such as date from a group of created drawings including a large number of CAD drawings , and to save the output drawing state as it is.
Can Ru. (C) For each CAD drawing, assign common data to different locations and / or
Or it can be incorporated in size.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of one embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a relationship between common data and graphic data.

FIG. 3 is a schematic explanatory diagram of a management method of an output drawing group.

FIG. 4 is an explanatory diagram of a conventional CAD drawing creation method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Computer 2 ... Graphic input means 2a ... Mouse 3 ... Drawing output means 3a ... Display 3b ... Plotter 4 ... CAD drawing 5 ... Work memory 6 ... Code input means 7 ... Code / character data conversion means 8 ... ROM10 ... External storage Device 15… Drawing file 16… Drawing management file 17… Address 18… Common data storage area 19… Graphic data storage area 20… Graphic data 21… Character data 22… Code signal statement 23… Character data instruction statement 25… Reading means 26… Detecting means 28 ... Common data 29 ... Graphic data 31 ... Write position indication 32 ... Size indication

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Claims (4)

(57) [Claims] 1. A plurality of N computer-generated CAD having input means for inputting graphic data, a working memory for writing the graphic data, drawing output means for outputting the contents of the working memory, and an external storage device. the drawing groups, update and output as only the common data is different drawings group included in the drawing plane group
And managing in the state at the time of output ;
・ The directory corresponding to the drawing group to be output
In the storage device;
And N graphic data storage area for storing graphics data other than the common data contained in one common data storage and the drawing group for storing common data for drawing groups per drawings New output provided; the Simultaneously when the graphic data in any graphic data storage area under the directory is read out to the working memory
Holding a common data of the common data storage area of the directory
A common data management method for a CAD drawing, which is read out in a working memory as existence inhibition data . 2. A method according to claim 1, wherein an address of a common data storage area on said external storage device is stored in each of said graphic data storage areas. 3. The management method according to claim 1 or 2, wherein an indication of a position and a size of the common data with respect to each of the CAD drawings are stored in each of the graphic data storage areas. A common data management method for a CAD drawing, wherein the common data is read into a working memory at a position and a size corresponding to an instruction. 4. A method according to claim 1, wherein said common data is date data.