JPH08137926A - Method for preparing cad drawing - Google Patents

Abstract

PURPOSE: To provide a CAD drawing preparing method capable of simplifying the input or correction of character data. CONSTITUTION: A character code input means 6 inputs a code signal sentence 22 in a character code string to be character data 21 in a CAD drawing and a character data indicating sentence 23 including the indication of writing positions for respective characters in the character code string and the indication of character size to a computer 1 having a graphic input means 2 for inputting graphic data 20, a character code input means 6, a ROM 8 for storing the character shape of each character code, a working memory 5 for writing a CAD drawing, and a drawing output means 3 for outputting the contents of the memory 5. A code/character data converting means 7 converts respective character codes in the sentence 22 into character data 21 to be written in the specified positions of the CAD drawing by the specified size based upon the contents of a ROM 8 and the sentence 23 and writes the converted character data 21 in the memory 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating a CAD drawing, and more particularly to a method for creating a CAD drawing including character data.

[0002]

2. Description of the Related Art Computer-aided design (hereinafter referred to as CAD) is widely used in various businesses, and CAD-based drawing is also widely used. An example of a conventional CAD drawing (hereinafter sometimes referred to as CAD drawing) creation method will be briefly described with reference to FIG. In the following description, the following terms are used in the following meanings.

(1) Graphic data: Data in a CAD drawing that is output as a graphic (excluding characters). (2) Character data: Characters (including certain symbols, the same applies below)
The data in the CAD drawing that is output as. (3) Drawing bibliographic information: Information on bibliographic items such as CAD drawing name, scale, date, person in charge, JOB name, JOB number, drawing number, etc. (4) Device attribute information: Attribute information such as device name, product number, application, specifications / accessories, installation / finishing, installation location, and manufacturer. (5) Graphic signal: A signal indicating the shape of a graphic and a character for each pixel.
For example, a signal representing an arc, a straight line, or the like. (6) Code signal: An alphanumeric signal representing a character. For example, in the JIS code, the Chinese character "A" is expressed as a hexadecimal number 3021. (7) Drawing file: A file consisting of CAD drawing graphic data and character data. (8) Drawing management file: A file in which bibliographic items of each drawing are recorded as a code signal in order to manage a plurality of CAD drawings. (9) Device management file: A file in which the device attributes of a plurality of devices are recorded as code signals for each device.

The computer 1 of FIG. 5 uses a mouse 2a or the like to input a graphic signal, a graphic input means 2, a working memory 5 for storing graphic data according to the input graphic signal, and a display 3a for outputting the contents of the working memory 5. And a drawing output means 3 such as a plotter 3b. For example, CAD is performed by repeatedly inputting a graphic signal by the graphic input means 2 while appropriately checking the output result of the drawing output means 3 and collectively outputting each graphic data stored in the working memory 5 to the drawing output means 3.
Drawing 4 (see FIG. 3) is created. If the CAD drawing 4 is stored as the drawing file 15 in the external storage device 10 connected to the computer 1, the CAD drawing 4 can be corrected by reading the drawing file 15 into the working memory 5.

In general, in CAD drawing 4, for the convenience of drawing management and the like, drawing bibliographic information is displayed as character data 21 (see FIG. 3) in a part of the drawing as in the case of handwriting drawing. In order to display the character data 21 on the CAD drawing 4, information on the shape of the character, size information, and position information on the CAD drawing is required. For example, a graphic signal having a specific character shape is input from the graphic input means 2 to the CAD drawing 4
By inputting a predetermined size in the predetermined position above, CA
D The drawing bibliographic information can be displayed on the drawing 4. In FIG. 5, the computer 1 is provided with code input means 6 capable of inputting a character code signal and code / character data conversion means 7a for only converting the character code from the code input means 6 into the character data 21. By converting the character code input from the input means 6 into the character data 21, and inputting the embedded position and the size of the character of the converted character data 21 from the figure input means 2, the character data 21 to the CAD drawing 4 is obtained.
Can be displayed. According to the method of FIG. 5, since the information on the shape of the character data 21 can be input by the character code, the input of the character data 21 is relatively easy. Reference numeral 8 in the drawing denotes a ROM that stores the shape of the character corresponding to the character code.

On the other hand, the drawing file 15 stored in the external storage device 10 is managed by a file system. For example, as shown in FIG. 5, a plurality of graphic files are stored by storing the graphic data 20 of the CAD drawing 4 and the character data 21 such as drawing bibliographic information as a graphic file 15 with a file name 17 in the external storage device 10. 15 can be managed by the file name 17. Further, the character data 21 of the drawing bibliographic information of each CAD drawing 4 is inputted as the character code 11 from the code input means 6, and the combination of the input character code 11 of the drawing bibliographic information and the file name 17 of the drawing file 15 is externally connected. By storing in the drawing management file 16a of the storage device 10,
It is also possible to perform more detailed management of the drawing file 15.

[0007]

However, the method of displaying the drawing bibliographic information as the character data 21 has a problem that it takes time and skill to incorporate or modify the character data 21. According to the input method using the code input means 6 and the conversion means 7a shown in FIG. 5, the shape of the character data 21 can be easily input.
Since it is necessary to separately instruct the embedded position of the converted character data 21 and the size of the character, the input of the character data 21 of the CAD drawing is more complicated than the input of a simple character code in a word processor or the like.

According to the method of managing the drawing bibliographic information in the drawing management file 16a, only the character code needs to be input, so that the drawing bibliographic information can be easily input and modified. However, this method has a problem in that the drawing bibliographic information is not directly displayed on the CAD drawing 4. From the viewpoint of drawing management, it is desirable to directly display the drawing bibliographic information on the CAD drawing 4, and for that purpose, the drawing bibliographic information input to the drawing management file 16a must be incorporated into the CAD drawing 4 again. Further, when the drawing bibliographic information once incorporated into the CAD drawing 4 is to be corrected, it is necessary to correct the character data 21 of the CAD drawing 4 and the character code 11 of the drawing management file 16a. In short, when the drawing bibliographic information is displayed on the CAD drawing 4 and is managed by the drawing management file 16a, there is a problem that input and correction are duplicated.

Therefore, an object of the present invention is to provide a method for creating a CAD drawing in which the input and correction of character data is easy.

[0010]

1 and 3, a method of creating a CAD drawing according to the present invention comprises a graphic input means 2 for inputting a graphic signal and a code input means 6 for inputting a character code signal. A CAD drawing 4 (see FIG. 3) is created by a computer 1 having a ROM 8 for storing the character shape of a character code, a working memory 5 for writing the CAD drawing 4 and a drawing output means 3 for outputting the contents of the working memory 5. Character data 21 in the CAD drawing (see FIG. 3).
(See FIG. 3) and the character size instruction 13 (see FIG. 3) for each character of the character code string are input as a code signal sentence 22 from the code input means 6. ) And are inputted as the character data instruction sentence 23 by the code input means 6, and each character code of the code signal sentence 22 is written by the ROM 8 and the character data instruction sentence 23 in the designated position of the CAD drawing 4 in the designated size. A code / character data conversion means 7 for converting into data 21 is provided, and the graphic data 20 (see FIG. 3) according to the input graphic signal and the character data 21 converted from the input character code signal are written in the working memory 5. It will be.

[0011]

The operation of the present invention will be described with reference to the embodiment shown in FIG. 3 in which drawing bibliographic information is displayed as character data 21 on a CAD drawing. A code signal of a character to be used as drawing bibliographic information is input as a code signal sentence 22 from the code input means 6. The code input means 6 can be, for example, a keyboard that outputs a code signal of a pressed key. The code input means 6 may include kanji conversion software or the like belonging to the prior art, and the kanji code converted from the output code signal of the keyboard may be included in the character code 11 of the code signal statement 22.

The code / character data converting means 7 first converts each character code 11 contained in the code signal sentence 22 into character shape data 21a. Code / character data conversion means 7
Is an R that stores all the character codes 11 that can be input by the code input means 6 and the character shape corresponding to each character code 11.
Each character code included in code signal statement 22 from OM8
The character shape corresponding to 11 is detected, and each character code 11 is replaced with the detected character shape to create character graphic data 21a. The code signal sentence 22 shown in FIG. 3 includes four columns A _{1 to} D ₁ of the character code 11 with the line feed code 11a at the end, and the code / character data conversion means 7 causes the respective character code sequences A _{1 to} D _{1 to be} generated. Is converted into four columns A _{2 to} D ₂ of the character shape data 21a. However, the code signal sentence 22 does not necessarily need to include the line feed code 11a.

In order to incorporate the converted character shape data 21a into the CAD drawing, further information on the position and the size of the character shape data 21a in the CAD drawing is required. The present invention uses the code input means 6 to send the graphic data directive 23
The position of the character shape data 21a in the CAD drawing is designated by the writing position signal 12 of the graphic data directive 23, and the size of the character shape data 21a is designated by the character size signal 13 of the graphic data directive 23. . Character size signal 13
Can be a signal that specifies the height and width of the character of the character data 21, for example, in millimeters, and the code / character data conversion means 7 expands the character shape data 21a to the character data 21 of the specified height and width, or Can be reduced. Further, the writing position signal 12 can be, for example, a signal for designating coordinates in a CAD drawing, and the character data 21 enlarged or reduced by the code / character data converting means 7 can be used.
You can position the lower left corner of the at the specified coordinates.
However, the writing position signal 12 and the character size signal 13 are not limited to these signals.

The character data instruction sentence 23 of FIG. 3 includes a set of four writing position signals 12 and character size signals 13 corresponding to the respective character code strings A _{1 to} D ₁ of the code signal sentence 11. The line feed code 11a at the end of each of the character code strings A _{1 to} D ₁ indicates that the set of the corresponding writing position signal 12 and character size signal 13 is different.
The character data instruction sentence 23 allows the character code strings A _{1 to} D ₁ to be displayed at different positions in the CAD drawing 4 in different sizes. According to the present invention, since the character shape information, the size information, and the position information necessary for displaying the character data 21 on the CAD drawing 4 are all input from the code input means 6,
Character data such as drawing management information can be displayed on the CAD drawing 4 only by inputting from the code inputting means 6 without inputting from the figure inputting means 2 which requires relatively skill. An example of the code / character data conversion means 7 used in the present invention is a program on the computer 1. For example, each operation such as reading a character code in the conventional CAD software, designating an allocation position, and designating a character size. It is also possible to use a program that activates commands all at once.

In this way, it is possible to provide the object of the present invention to provide a "method of creating a CAD drawing in which the input and correction of character data is easy".

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 2 shows an example of a flow chart of a CAD drawing preparation method of the present invention. First, in step 201, the character data instruction sentence 23 is input from the code input means 6. Then step 202
By inputting a figure signal from the figure input means 2, the figure data 20
Are stored in the working memory 5. Step 202 is repeated as necessary to store the graphic data 20 necessary for the CAD drawing 4 in the working memory 5, and then in step 203 the code input means 6 is entered.
Input the code signal sentence 22 from. At steps 204 and 205, each character code 11 of the code signal sentence 22 input by the code / character data conversion means 7 is converted into the character shape data 21a.
And the converted character shape data 21a is converted into character data 21 displayed in a specified size at a specified position on the CAD drawing 4 based on the character data directive 23, and the converted character data 21 is stored in the working memory 5. Remember. In step 206, the graphic data 20 and the character data 21 stored in the working memory 5 are collectively output from the drawing output means 3 to create a CAD drawing 4 as shown in FIG. 3, for example.

After the CAD drawing 4 is output, in step 207 CA
D It is judged whether or not the work for creating the drawing 4 is completed, and another C
To continue the work of creating the AD drawing 4, the process returns to step 201. Character data in the next CAD drawing 4 creation work
When 21 is displayed at the same position and size as the previous CAD drawing, the process returns to step 202 instead of step 201, and the character data directive 23 entered last time is used to execute the next CAD.
It is possible to input the character data 21 of the drawing.

As shown in FIG. 1, an external storage device 10 is connected to a computer 1, and a code signal statement 22 and a character data instruction statement are connected.
It is possible to store the combination of 23 and the file name 17 as the drawing management file 16 in the external storage device 10 for each CAD drawing 4. Before creating the CAD drawing 4, the CAD
The code signal sentence 22 and the character data instruction sentence 23 which should be the character data 21 of the drawing 4 are input from the code input means 6 and stored in the drawing management file 16, and when the CAD drawing 4 is created, the By reading the code signal sentence 22 and the character data instruction sentence 23 of the CAD drawing 4 and converting the read code signal sentence 22 and the character data instruction sentence 23 into the character data 21 by the code / character data converting means 7, the CAD drawing 4 The character data 21 can be displayed on. Code signal statement 22 when drawing management file 16 is used
The data flow of the character data directive 23 is shown by dotted lines in FIGS.

The conventional drawing management file 16a shown in FIG.
Has a problem that the drawing bibliographic information stored in the drawing management file 16a is not directly displayed on the CAD drawing 4 because the character data directive 23 is lacking. According to the present invention, the drawing management file 16 shown in FIG. 1 stores the code signal statement 22 of the drawing bibliographic information, the character data instruction statement 23, and the file name 17, so that the drawing bibliography stored in the drawing management file 16 is stored. Information can be displayed on the CAD drawing 4. Even when it is necessary to correct the drawing bibliographic information, the drawing bibliographic information in the drawing management file 16 is first corrected from the code input means 6, and then the corrected drawing bibliographic information in the drawing management file 16 is read to read the CAD drawing. Since it can be displayed on 4,
It can also solve the problem of duplicate inputs and corrections. In short, according to the present invention, the drawing bibliographic information displayed on the CAD drawing 4 can be centrally managed by the drawing management file 16.

FIG. 4 is a device table 4a which is an example of the CAD drawing 4.
Indicates. Device table 4a is a C that displays a list of device attribute information.
The AD drawing 4 is composed of graphic data 20 such as ruled lines and character data 21 of device attribute information. Conventionally, since the character data 21 of the device table 4a was input using the graphic input means 2, it took a lot of time and effort to create the device table 4a. Similar to the case of the drawing management file 16 described above,
Code signal statement 22 to be used as device attribute information in the external storage device 22
And a device management file (see FIGS. 6 and 7) that stores the character data instruction text 23 for each device, and the code signal text 22 and the character data that should be the device attribute information for each device before creating the device table 4a If the command text 23 is input from the code input means 6 and stored in the device management file, the code signal text of the device required from the device management file when the device table 4a is created.
By reading 22 and the character data directive 23, the character data 21 of the device attribute information converted by the code / character data converting means 7 can be incorporated into the device table 4a.
6 and 7 show an example of the code signal statement 22 stored in the device management file. That is, according to the present invention, it can be expected that the device table 4a can be easily created in a short time.

FIG. 8 is a device plotting diagram and a device table.
An example of the work of creating the CAD drawing 4 related to the creation of 4a and the like will be described.

[0022]

As described above in detail, the CA of the present invention
A method for creating a D drawing is a character data instruction statement including a code signal statement of a character code string to be character data in a CAD drawing from a code input means and a writing position instruction and a character size instruction for each character of the character code string. Is provided and code / character data conversion means for converting each character code of the code signal text into character data written in a specified size at a specified position in the CAD drawing is provided, and the converted character data is stored together with graphic data in a working memory. Since it is written in, the following remarkable effects are achieved.

(1) The character data of the CAD drawing can be easily input or modified from the code input means. (2) By using the same character data directive, the character data formats of a plurality of CAD drawings can be unified. (3) The drawing management file and the CAD bibliographic information of the CAD drawing are unified by including the code signal sentence of the drawing bibliographic information and the character data instruction sentence in the drawing management file and reading the character data of the CAD drawing from the drawing management file. can do. (4) That is, the drawing bibliographic information of the drawing management file and the drawing bibliographic information of the CAD drawing can always be matched. (5) By managing the code signal statement and the character data instruction statement of the device attribute information in the device management file, it is possible to create a device database that can be used in CAD drawing creation. (6) It can be expected that a device table can be created easily in a short time by using the device database.

[Brief description of drawings]

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

FIG. 2 is a flowchart showing an example of creating a CAD drawing according to the present invention.

FIG. 3 is an explanatory view showing the operation of the present invention.

FIG. 4 is an explanatory diagram of a device table.

FIG. 5 is an explanatory diagram of a conventional example.

FIG. 6 is a diagram showing an example of a code signal statement of a device management file.

FIG. 7 is a diagram showing a continuation of the code signal sentence of FIG. 6.

FIG. 8 is a diagram showing an example of a CAD drawing creation work.

[Explanation of symbols]

 1 Computer 2 Graphic Input Means 2a Mouse 3 Drawing Output Means 3a Display 3b Plotter 4 CAD Drawing 4a Equipment Table 5 Working Memory 6 Code Input Means 7, 7a Code / Character Data Converting Means 8 ROM 10 External Storage Device 11 Character Code 12 Writing Position Instruction 13 Character size instruction 15 CAD drawing file 16, 16a Drawing management file 17 File name 20 Graphic data 21a Character shape data 21 Character data 22 Code signal text 23 Character data Directive text.

Claims (6)

[Claims] 1. A graphic input means for inputting a graphic signal, a code input means for inputting a character code signal, a ROM for storing a character shape of the character code, a working memory for writing a CAD drawing, and the working memory. In a method for creating a CAD drawing by a computer having a drawing output means for outputting contents, a character code string to be character data in the CAD drawing is input as a code signal sentence from the code input means, and the character code is input. A writing position instruction and a character size instruction for each character in the column are inputted as character data instruction by the code input means, and each character code of the code signal statement is made by the ROM and the character data instruction by the CAD drawing. A code / character data conversion means is provided to convert the character data written at the specified position in the specified size. How to create CAD drawing and text data after the conversion made in written into the working memory from a character code signal the type graphic data by graphic signals the input. 2. The method according to claim 1, wherein an external storage device is connected to the computer, and the external storage device is provided with a drawing management file for storing the code signal sentence and the character data instruction sentence for each CAD drawing. Before creating the CAD drawing, the code signal sentence and the character data instruction sentence to be the character data of the CAD drawing are input from the code input means and stored in the drawing management file, and the drawing management file is created when the CAD drawing is created. From the CAD drawing, the code signal text and the character data instruction text of the CAD drawing are read, and the read code signal text and the character data instruction text are converted into the character data by the code / character data conversion means and written in the working memory. How to create a CAD drawing. 3. The method of creating a CAD drawing according to claim 1, wherein the character data is drawing bibliographic information. 4. The method of creating a CAD drawing according to claim 3, wherein the drawing bibliographic information includes a JOB name, drawing name, scale, date, person in charge, JOB number, and drawing number. 5. The CAD drawing creation method according to claim 1, wherein the character data is device attribute information. 6. The creation method according to claim 5, wherein an external storage device is connected to the computer, and the code signal sentence and the character data instruction sentence to be the device attribute information are stored in the external storage device for each device. Provide a device management file,
Before the CAD drawing is created, the code signal sentence and the character data instruction sentence which should be the device attribute information for each device are input from the code input means and stored in the device management file.
At the time of creating the drawing, the code signal sentence and the character data instruction sentence of the specific device are read from the device management file, and the read code signal sentence and the character data instruction sentence are converted into the character data by the code / character data converting means and the work is performed. A method for creating a CAD drawing written in a memory.