JPH06168286A - Method and device for extracting cad drawing comment - Google Patents

Abstract

PURPOSE:To reduce erroneous inputs of retrieval keywords, the handling time of preparation, and the labor and time of batch conversion in the management of drawing data prepared by the CAD. CONSTITUTION:The CAD drawing comment extraction device is provided with a comment area specification section 101 specifying a comment area where comment characters are described on the drawing, input section 102 inputting information on the drawing to the non-comment area of the drawing where the comment area is specified and inputting information 011 the comment characters to the comment area, storage section 103 storing information on the inputted comment area, information on the drawing, and information on the comment characters, comment extraction section 104 extracting the comment characters 10 the comment area, and output section 105 preserving the extracted comment characters with proper attribute added on a file and outputting it to the outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to CAD, and more particularly to a CAD drawing comment extracting device and extracting method for extracting necessary comment character information from a drawing.

[0002]

2. Description of the Related Art Conventionally, when managing a drawing by CAD using a database system, a comment such as a note indicating a key item or revision history etc. when searching for a title, drawing name, etc. is designated separately. In most cases, a special symbol or a special symbol is added, and the information is directly input from the keyboard separately from the general graphic information.

In some CAD drawings, a character string element having a special attribute for comment is provided so that the content of a predesignated element can be extracted separately (for example, "Advance CAD" of ITOCHU Techno Science Co., Ltd.). Therefore, if you want to change the comments in a series of drawings all at once, start all the series of drawings with the CAD device, and then extract the comments based on the specified comments. It is common to edit.

[0004]

As described above,
In conventional CAD, when a drawing is input to the management system, items such as keys are specified as separate comments and manually input from the keyboard separately from general graphic information, so extra caution and considerable effort is required. Is required. In addition, there is a possibility that an error may occur when manually transcribing. In addition, some CAD has a special attribute for comments, and by using it, it is possible to avoid the trouble of inputting from the keyboard and the risk of erroneous writing, but again, the designer is set in advance for each drawing. It is necessary to input the character string according to the procedure described above, and when the number of drawings such as the design drawing of a large plant is large, it takes a lot of time and effort to input, transfer or rewrite.

In view of the above problems, it is an object of the present invention to provide a CAD drawing comment extracting device and method which does not require any trouble in inputting comments.

[0006]

In order to achieve the above object, in the invention of claim 1, a comment area designating section for designating a comment area which is an area in which comment characters are described in an input drawing, and An input unit for inputting information about the drawing in the non-comment region of the drawing having the comment region designated by the comment region designating unit and information for comment characters in the comment region of the drawing, and the comment region designating unit A storage unit that stores information about the comment area, information about the drawing input by the drawing input unit, and comment characters, and a comment extraction unit that extracts the comment characters in the comment area stored in the storage unit. , The comment characters extracted by the comment extraction unit as they are or after adding appropriate attributes to them Is a CAD drawing comment extracting apparatus characterized by comprising an output section for enabling at least one registering to and external database is stored in yl.

In the invention of claim 2, a character string newly input from the input unit or another input unit is newly added or already entered as a comment character in the comment area stored in the storage unit. The CAD drawing comment extracting device according to claim 1, further comprising a comment adding / substituting unit having at least one function of replacing the comment character with the comment character.

According to the third aspect of the present invention, a correspondence table showing the correspondence between the character codes representing the external characters and symbols unique to CAD and the standard character codes, and the comment character in the comment area are extracted and output means. The code conversion unit for converting the character code representing the external character or symbol peculiar to CAD in the comment character into a standard character according to the correspondence table when the character is sent to the comment character. Described CAD
It is used as a drawing comment extraction device.

According to another aspect of the present invention, a comment area designating step for designating an area in which comment characters are described in an input drawing, and a non-comment area of a drawing having the comment area designated in the comment area designating step are provided. Inputting information about the drawing in, and inputting comment characters in the comment area of the drawing, information about the comment area specified in the comment area specifying step, and information about the drawing input by the input step And a data storing step of storing information about comment characters, a comment extracting step of extracting comment characters in the comment area from the data input and stored in the comment area specifying step and the input step, and The characters extracted by the comment extraction step It is or or a CAD drawing comment extraction method characterized by comprising the output step of forming the at least one to be and registered in the external database is stored in a file on that appending appropriate attributes thereto.

In the invention of claim 5, the character string newly input in the input step or other input step is newly added as a comment character to the comment area on the drawing stored in the data storing step, or already added. 5. The CAD drawing comment extracting method according to claim 4, further comprising a comment adding / substituting step having at least one of replacing the written comment character.

According to the invention of claim 6, when the comment character in the comment area is output in the output step,
Code conversion for converting the character code representing the external character or symbol peculiar to CAD in the comment character extracted in the comment extracting step to a standard character code based on a table showing the correspondence between the two created in advance. The method according to claim 3, further comprising steps
The AD drawing comment extraction method is used.

[0012]

With the above construction, in the first aspect of the invention, the comment area designating section designates a comment area which is an area in which comment characters are described in the drawing. It is possible to input information about a drawing into a non-comment area of a drawing having a comment area designated by the comment area designating section and a comment character in the comment area of the drawing. The storage unit stores information about the comment area designated by the comment area designation unit, information about the drawing input by the input unit, and information about the comment character. The comment extraction unit receives an input from the input unit and extracts comment characters in the comment area of the drawing stored in the storage unit. The output unit does at least one of saving the comment character extracted by the comment extracting unit as it is or adding an appropriate attribute thereto and then saving it in a file and registering it in an external database.

According to a second aspect of the invention, in the CAD drawing comment extracting device according to the first aspect of the invention, the comment addition / replacement unit newly adds a character string newly input from the input unit or another input unit as a comment character. It is possible to perform at least one of these functions by replacing the comment character in the comment area on the drawing that is already stored in the storage unit.

According to the third aspect of the invention, in the CAD drawing comment extracting device according to the second aspect of the invention, when the comment character in the comment area is extracted and sent to the output means, the comment is extracted by the comment extracting section. CAD in comment characters
The code conversion unit converts a character code representing a unique external character or symbol into a general character code defined by a standardized convention such as JIS, based on a table showing the correspondence between them and standard character codes. .

According to the fourth aspect of the invention, CAD drawing comment extraction is performed by the same operating method as that of the first aspect of the invention. According to the invention of claim 5, the CA operates in the same manner as that of the invention of claim 2.
D Drawing comment extraction is performed. In the invention of claim 6,
The CAD drawing comment extraction is performed by the same operation method as that of the third aspect of the invention.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A CAD drawing comment extracting device according to the present invention will be described below based on embodiments. (First Embodiment) FIG. 1 is a block diagram of an embodiment of a CAD drawing comment extracting device according to the inventions of claims 1 and 4. In the figure, reference numeral 101 designates a comment area designating section for designating a comment area in which a comment such as a title of the drawing is described by coordinates or is defined programmatically. 102 is a line, a figure, like the general CAD system.
It is an input unit for inputting information about a drawing including normal characters, symbols, drawing frames, etc. and characters in the comment area according to the present invention, that is, comment characters. Reference numeral 103 has a primary storage such as a memory device and a secondary storage such as a disk device, and includes the graphic input by the input unit 102, the comment area designated by the comment area designating unit 101, and an input unit inside thereof. The storage unit stores the comment character input in 102. 104 is the storage unit 103
The comment extraction unit extracts the comment characters described in the comment area based on the information stored in the comment area. An output unit 105 adds appropriate attributes to the comment characters extracted by the comment extraction unit 104, and then stores them in a file or registers them in an external database.

In addition to the above, since this device constitutes a part of the CAD drawing creation system, a CPU,
There is a CAD drawing creation device main body consisting of a CRT, a keyboard, a magnetic disk, etc., and various equipment necessary for connection with this, and input means such as a CRT and a keyboard are often shared with the main body, but they are self-explanatory. Therefore, the illustration and description thereof are omitted.

Next, the specific operation, data structure, etc. of this embodiment configured as described above will be explained. In this embodiment, the comment area is specified by a frame specified by the coordinates in the X and Y directions, which is numerical information, and is first specified by the comment area specifying unit 101 in the lower right of the drawing by a frame. , High-speed semiconductor memory 1 in the storage unit 103
03a is stored in the comment area information section. The reason why the comment area information section is composed of a high-speed semiconductor memory is that it needs to be called immediately when drawing a CAD drawing, which will be described later. The position of the comment area is usually located in the lower right corner of the drawing. Normally, drawings subject to CAD regardless of design drawings, plan drawings, and production drawings are displayed in the lower right frame with the plant title, serial number, and part name. , Drawing number, drawing name, drafter name or designer name, department name,
This is consistent with the fact that it is usual to provide a field for entering management information (broadly defined comments) such as keywords, if necessary, and that the description position and order are almost constant. . Therefore, the designer uses the input unit 102 to draw a drawing in the drawing frame in which the comment area has already been specified, and also writes the comment character. That is, it is not different from the design drafting for the ordinary drafting paper. This CAD at this time
The procedure for determining and storing the input information of the drawing extracting apparatus is shown in the flowchart of FIG. The flow will be shown below based on this figure. When inputting by the CAD drafting device, the input means is first determined (step 21). If the input is from the comment area designating unit 101, this input is determined to be the designation of the comment area of the drawing, and the entered information is stored in the comment area information unit of the storage unit 103 (step 22). . If this is not the case, this input is judged to be general graphic information or a comment character, and which one of them is judged at the input position on the drawing (step 24). If the input position is within the frame previously specified by the comment area specifying unit 101, the input character is determined to be the comment character and the storage unit 10 is automatically operated.
3 is stored in the comment character information section (step 2
5). On the contrary, if it is outside the frame, the input character, figure, etc. are judged to be general graphic information, and are automatically stored in the general graphic information section (step 26).

FIG. 3 is a display example of a drawing created under the action of the drawing input section and the comment area designating section. In this figure, as an original drawing, for example, a three-sided view D1, D of a rectangular parallelepiped
2, D3 are arranged in the center of the drawing, and the designer's initial "MT" is entered as a comment character in the title box 301 at the lower right of the drawing. The comment area has an X coordinate of 150 to 190 and a Y coordinate of 10 to 30.
The title column 301 indicates Note that these coordinates are designated by the comment area designation section. Again,
Here, "150", "190", "10", and "30" are matched with the size of the management information entry column in the lower right part of a normal drawing.

FIG. 4 conceptually shows the data structure of the drawing shown in FIG. 3 stored in the storage unit 103.
In the figure, reference numeral 401 is general graphic information, which represents a line segment whose X, Y coordinates of the end points are (50, 30) to (80, 20). 402 is comment character information,
Similarly, it indicates that there is a character string "MT" as a comment character at the coordinate (160, 15). Reference numeral 403 is comment area information, which similarly has coordinates (150, 11
The rectangular area surrounded by (0) and (190, 130) is the comment area # 1. In addition, in FIG. 3, since the comment area is only one place in the lower right column,
This "# 1" has no substantial meaning as the designation of the data structure or the comment area.

FIG. 5 (a) conceptually shows the result of the comment characters of the drawing shown in FIG. 3 being extracted by the comment extracting section and then output from the output section. This Figure 5 (a)
In this case, it is output that the content of the comment # 1 is the character string "MT" in conformity with FIGS. Next, when saving the extracted comment character string in a file, the number "1992.11.10" that specifies the saving date and time is
In addition, when registering in an external database, the symbol "ABC" that specifies the date and time of saving and the CAD drawing device itself
Is automatically added under the action of the output unit and outputted for the convenience of management such as rearranging and storage of the operator later. These are conceptually shown in FIGS. 5B and 5C, respectively. Furthermore, it is of course possible to output after adding other attributes specified by the operator from a keyboard or the like (not shown) or according to a predetermined program.

In this embodiment, the pure characters "M" and "T" are used as the comment characters from the viewpoint of easy understanding, but these are not limited to pure characters and other "○". , Symbols such as "x" and figures, as well as CA, which will be described later
Of course, it may be a D-specific character or symbol. Furthermore, as described above, it is usual that the figure number, the plant subject, etc. are described in the lower right column, and these descriptions are used as comment characters for organizing drawings and searching. Since it is usual, there is no need to separately enter a comment separately from the general graphic information. Further, it is possible to prevent erroneous writing and the like at the time of deliberate input (or rather, it is unlikely to occur). (Second Embodiment) FIG. 6 is a block diagram of an embodiment of a CAD drawing comment extracting device according to the inventions of claims 2 and 4. In the figure, 101 is a comment area designation unit, 102 is an input unit, 103 is a storage unit, and 1
Reference numeral 04 is a comment extraction unit, and 105 is an input unit.
Since the basic functions, actions, and structures of these respective parts are basically the same as those of the first embodiment, the same reference numerals are given and the description thereof will be omitted. Next, 607 is the input unit 1
01 is another external input unit, and 608 is a CRT 608.
A comment adding / substituting unit having a as a component.

Hereinafter, referring to the operation flow chart of FIG. 7,
Replacement and addition of comment characters in this embodiment will be described. Extracted by the comment extraction unit 104 and output by the output unit 1
The comment area called via 05 and the comment characters in this comment area are displayed on the CRT 608a attached to the comment adding / substituting unit (step 71).
In this case, the comment area information and the comment character information, which are separately stored, are displayed on the CRT 608a after matching their display positions with each other not only in the multi-window system in the CPU but also in the back program in the large-sized television receiver. Since it is a technology that has been adopted even for extremely home-like things, such as displaying in a small size at the bottom right of the screen,
The description is omitted. At this time, since the comment area is specified by the frame and its position and size are almost fixed, the comment area must be identified from a large amount of drawing information from the viewpoint of both operation and program. It is easy to display only the area. While referring to this display, the operator not only newly inputs characters via the external input unit 607, but also inputs a new character string such as the contents of the specified file or contents retrieved from an external database system. Input to the comment addition / substitution unit 608. In this case, if the newly input character is located at the position where the comment character already exists, the old comment character is displayed by being replaced with the newly input character, and if the comment character that has already been input does not exist. If so, the newly input character is added and displayed as it is (step 72). However, since the hardware, software, input operation, etc. are technologies that are used not only in CAD devices, but also in windows systems that use CPUs and word processors, which are extremely everyday, explanations thereof are omitted. To do. Comment addition and replacement unit 608
Inputs the displayed content together with information on the position occupied by the frame indicating the comment area via the input unit 102 (step 73). Therefore, the comment character whose replacement has been completed is stored again in the corresponding comment character information storage unit in the storage unit 103 (step 7).
4).

By the above operation, the newly input character string becomes a comment character in place of or in addition to the comment character that has already been input. Note that this replacement or addition of comment characters is basically the same technique as replacing the contents stored on the floppy disk with the contents displayed on the CRT in the word processor. The description is omitted. Further, under the instruction of the operator, the new character string input from the external input unit 607 is directly input unit 1 without displaying the already input comment character or comment area on the CRT.
It is also possible to additionally store or replace and store as a new comment character by storing it in the comment area of the drawing in the storage unit 103 via 02. In addition,
Also in this case, since the comment area is specified as a frame at the lower right of the drawing frame, the position of the old and new comment characters occupied in the comment area and the state of replacement and addition at the time of replacement and new input are determined by the CAD drawing extraction device. Of course, it is often possible for the operator to easily detect and confirm the comment area and the comment characters inside the comment area without displaying it on the CRT. And, of course, the manufacturing of the CAD drawing comment extracting device and the program work of the designer are facilitated. In particular, not only CAD drawings but also design drawings, planning drawings, production drawings, etc. are not only standardized in the size of drawing paper such as A0 and A1, but also the size of the comment area and the comment characters written in them. , Specifically, not only the position and order of the company name, order number, drawing number, etc., but also their size and font are almost common to all companies. Therefore, in many cases, these batch conversions for a large number of drawings can be correctly performed without displaying them on the CRT one by one. Further, in this case as well, since the comment area information is not only stored in the high-speed semiconductor memory but also occupies a fixed position in the drawing frame, it is more difficult to manually input from outside the CAD drawing abstract device. Even if the input operation is much faster, it is possible to call it sufficiently quickly. Furthermore, it is extremely easy to call only the comment areas and comment characters of many drawings and sequentially display them on the CRT. (Third Embodiment) FIG. 8 is a block diagram of an embodiment of a CAD drawing comment extracting device according to the inventions of claims 3 and 6. In the figure, 101 is a comment area designation unit, 102 is an input unit, 103 is a storage unit, and 1
Reference numeral 04 is a comment extraction unit, and 105 is an output unit.
Since the basic functions, actions, and structures of these respective parts are the same as those of the first and second embodiments, the same reference numerals are given and the description thereof will be omitted. Next, 809 indicates the storage unit 10.
CAD specific character code stored in 3 and output unit 1
It is a correspondence table with a general character code defined by a standardization rule such as JIS output to 05. A code conversion unit 810 converts the character code of the comment character extracted by the comment extraction unit 104 into a general character code based on the content of the correspondence table 809. Next, the contents of the correspondence table 809 and the conversion unit 810 will be described in detail. Although it is an external character or symbol unique to CAD, not only in CAD but also in technical drawings, when revision is made, it is usually written in "△" as a caution note or management information to that effect or a comment character in the present invention. A number indicating the number of revisions, for example, a graphic character that does not exist in the JIS code in which "1" is written, is written at the end of the drawing number, together with the column at the upper right or lower right corner in the figure or those columns. In addition, various characters, external characters or symbols that are not in the JIS code are often used. Consequently, in the current CAD device, a large number of special external character and symbol codes which are not included in these JIS codes are used. Therefore, in the CAD drawing extracting device according to the invention of claim 1, 2, 4 or 5, when these external characters or symbols peculiar to CAD are entered in the comment area, these are used as they are as normal characters. You can't type or type it into a word processor or printing machine. Therefore, in such a case, for example, the above-mentioned graphic character (“1” in “Δ”) needs to be converted and launched as “Δ1” or simply “1”. Both are provided for the above reasons. As a result, even if the comment character is stored as the comment character in the storage unit 103 with a special character code representing a CAD-specific external character or symbol, the output result from the output unit 105 can be easily read by an ordinary person. It will be possible. In principle, this conversion is to convert "input kana characters" displayed on a CRT in a word processor into "predetermined kanji". In more complicated ones, it is the same as a dictionary in an automatic translation device. , Hardware and software are well-known technologies,
The description is omitted.

9 to 12 are schematic views conceptually showing changes in the expression and data structure at the time of character code conversion. FIG. 9 is a basic CAD drawing. In this figure, 90
Reference numeral 1 is a correction history field that also serves as a second comment area, and inside it is a "Δ mark 1" that is a CAD-specific symbol that represents a correction.
And the correction content "mod" are entered as comments. The comment area / correction history column is a rectangle, and its coordinates are from (150,110) to (190,1).
30). FIG. 10 conceptually shows the storage state of this drawing. In the figure, 1001 indicates a second comment area, and 1002 is a data structure representing a comment character. Then, as indicated by 1003, “Δ mark 1” is represented by the internal code “ESC2001” unique to CAD. FIG. 11 is a conceptual diagram of this correspondence table,
The code before conversion and the code after conversion are described in correspondence with each other. In this conversion table, the character code "ESC200
“1” indicates that it becomes “<1>” after conversion. FIG. 12 shows an example of the comment characters that are extracted and converted and then output. In the lower row, it can be seen that the “Δ mark 1” is converted to “<1>” and output.

Although the present invention has been described above based on the embodiments, it goes without saying that the present invention is not limited to the above embodiments. That is, for example, the following are of course included in the present invention. (1) In the invention of each claim, one component (requirement, step) is divided into a plurality of components for the convenience of manufacturing. On the contrary, a plurality of constituent elements are integrated. The storage device may be of any type such as a high speed semiconductor memory or a magnetic disk. Further, it does not matter what kind of storage device is used to store which information. The information about the comment area is stored in the high-speed semiconductor memory so that it can be called up quickly, and is also stored together with the comment character in the magnetic disk for the convenience of replacement of comment characters and addition of new characters. As described above, the data structure in the storage device does not matter. (2) When a comment character is input in the input section, its attribute can be input at the same time. Also, a non-comment character string can be input in the comment area. This is useful in the following cases. For example, for a CAD drawing creator, the company name itself to be entered on the drawing is almost unchanged, especially for larger companies. Therefore, it is useful for preventing erasure due to an erroneous operation when collectively converting comment characters, and for preventing confusion about the destination of drawings on site at a joint order plant with another company. (3) The designation of the comment area is not based on the designation of the corresponding position using the frame on the CAD drawing, but also the description items by using the symbol similar to "[]" in the patent specification, etc. As in the case of, the special symbols are used for the designation. Conversely, by using a special symbol, non-comment characters can be entered in the frame designated as the comment area. Further, even the characters in the comment area are programmed so that characters such as the manufacturer's name that are quite common do not act as comments. And these are convenient when using for the comment character in the text in the operation manual of a device. (4) It is possible to specify the comment area by the number of pages in consideration of its use as a display and a table of contents in a drawing over a large number of pages such as a manufacturing and manufacturing procedure diagram and a plant operation procedure manual. Note that in such a case, a page containing only sentences may appear, but a page containing only such sentences may be CA.
Of course, as long as the D device is used, it corresponds to the "drawing" in the present invention. Further, in this case, it is the numeral indicating the page located at the center of the lower part of the page that serves as a symbol similar to “[]” in (3) above. (5) By providing a plurality of comment areas and distinguishing them from each other by their numbers, the operation according to each claim can be performed for each comment area instructed by the operator. (6) The comment area designating section and the input section are the same in terms of hardware, mechanical or physical, and can be switched by a switch or a program. (7) In the inventions of claims 1 and 4, a function of printing out the comment character extracted by the comment extracting unit and capable of CRT display is added. (8) In the first embodiment, the comment area is specified prior to the comment character, but conversely, for the area where the character is already entered, the comment area can be specified later as the comment area. Furthermore, the characters that have already been entered are (i) new comment characters, (ii) normal characters instead of comment characters, (iii) erased and above (i) to (iii) A selectable function is added. (9) A graphic input that is inappropriate as a comment character is not treated as a comment character, or a function to limit the use of a comment character to alphabets, numbers, certain kanji, etc. is added. As a result, even if a general drawing element such as a curve is erroneously input to the comment area and the drafting person is not aware of this, it is possible to prevent the inconvenience caused by handling this as a comment character. (10) A function of incorporating a program of a handwriting word processor, a dictionary, or the like, and inputting it as a standard character of a typeface when a character is input in a comment area from a special input device such as a pen input device (so to speak, in claim 3). A function similar to the reverse of the invention) is added. As a result, misreading of comment characters of a third party can be prevented. (11) In the inventions of claims 2 and 5, when there are plural types of comment characters such as order number, department in charge, drafter, etc., after identifying any one or some of them, It is possible to convert all at once. This feature is, for example,
This is convenient when the number of the related drawing is changed from the number indicating the order received to the number indicating after-sales service or repair when the plant is delivered. As a means at this time, there is the same method as the batch conversion of the already-input characters or words in the word processor, or the recognition of the batch conversion target using a keyword or a special symbol. (12) In the inventions of claims 3 and 6, the code conversion unit is inactivated under the instruction of the operator for the convenience of transferring the drawings to be stored between the CAD drawing devices having the same function. A function is added. (13) The CAD drawing extracting device is a combination of the inventions of claim 2 or 5 and claim 3 or 6.

[0027]

As described above, in the inventions of claims 1 and 4, the characters described in the previously defined comment area are the comment characters. Therefore, the drawing creator can input comment characters as part of the information to be entered in the drawing when creating the drawing. Even when drawing management is performed using an external database or the like, the contents described in the management information entry column / comment area in the drawing can be directly used as key items, comments, and the like. As a result, it is possible to omit the additional work of specifying and inputting the comment. In addition, it is possible to prevent erroneous input at the time of transcription.

In the inventions of claims 2 and 5,
The comment character in the drawing can be converted according to the content input separately. At this time, the comment characters have common areas and contents filled in in many drawings. Therefore,
It is easy to work when it is necessary to collectively change the comments of a relatively large number of drawings due to the delivery of plans, organizational changes, design changes, etc. It is possible to save the trouble of inputting again from the drawing input unit. Further, it is possible to prevent erroneous input.

In the inventions of claims 3 and 6,
By replacing the character codes that represent special external characters and symbols used in CAD drawings with characters that consist of general character codes such as JIS standards, the extracted character strings can be stored in an external file or database system. When used, the contents can be easily displayed and grasped.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the inventions of claims 1 and 4. FIG.

FIG. 2 is an operation flow chart associated with designation of a comment area, input of graphic information, and comment characters in the embodiment.

FIG. 3 is an example of a drawing display in the above embodiment.

FIG. 4 is a conceptual diagram of a data structure of a drawing data storage unit in the above embodiment.

FIG. 5 is a conceptual diagram of an output result in the above embodiment.

FIG. 6 is a configuration diagram of an embodiment of the inventions of claims 2 and 5;

FIG. 7 shows replacement of comment characters in the above embodiment,
It is an additional operation | movement flow diagram.

FIG. 8 is a configuration diagram of an embodiment of the inventions of claims 3 and 6;

FIG. 9 is an example of a screen display in the above embodiment.

FIG. 10 is a structural diagram of drawing data in the above embodiment.

FIG. 11 is a diagram of a conversion table in the above embodiment.

FIG. 12 is a conceptual diagram of an output result in the above embodiment.

[Explanation of symbols]

 101 comment area designation section 102 input section 103 storage section 104 comment extraction section 105 output section 301 title block (comment area) 401 general graphic information 402 comment character information 403 comment area information 607 external input section 608 comment addition and replacement section 809 correspondence table 810 Code converter

Claims (6)

[Claims] 1. A drawing in a non-comment area of a drawing having a comment area designating section for designating a comment area which is an area for writing comment characters in an input drawing and a comment area designated by the comment area designating section. Information, an input unit for inputting comment characters into the comment area of the drawing, information about the comment area specified by the comment area specifying unit, information about the drawing input by the input unit, and comment characters. A storage unit for storing information, a comment extraction unit for extracting comment characters in the comment area stored in the storage unit, and the comment characters extracted by the comment extraction unit as they are or with an appropriate attribute. Less need to add and save in a file and register in an external database CAD drawings comment extracting apparatus characterized by also having an output section for enabling one. 2. A character string newly input from the input unit or another input unit is newly added as a comment character in the comment area stored in the storage unit or is replaced with a comment character already written. 2. The CAD drawing comment extracting device according to claim 1, further comprising a comment adding / substituting unit having at least one function. 3. A correspondence table showing a correspondence relationship between a character code representing a CAD-specific external character or symbol and a standard character code, and when extracting comment characters in the comment area and sending them to the output means. The CAD drawing comment extraction according to claim 1, further comprising a code conversion unit for converting a character code representing a CAD-specific external character or symbol in the comment character into a standard character according to the correspondence table. apparatus. 4. A comment area designating step for designating an area in which comment characters are written in an input drawing, and information about the drawing is provided in a non-comment area of the drawing having the comment area designated in the comment area designating step. An input step of inputting a comment character into the comment area of the drawing, information about the comment area specified in the comment area specifying step, information about the drawing input by the input step, and comment character A data storing step for storing information, a comment extracting step for extracting comment characters in a comment area from the data input and stored in the comment area specifying step and the input step, and a comment extracting step for extracting the comment character Typed characters as they are or suitable for this CAD drawings comment extracting method characterized by and be made of a less output step of forming the one that registered in the external database is stored in a file on added with attributes. 5. A character string newly input in the input step or another input step is newly added as a comment character to the comment area stored in the data storage step or replaced with a comment character string already written. 5. The CAD drawing comment extraction method according to claim 4, further comprising a comment addition / replacement step having at least one of the following. 6. A character code representing a CAD-specific external character or symbol in the comment character extracted in the comment extracting step is previously created when the comment character in the comment area is output in the output step. 4. The CAD drawing comment extraction method according to claim 3, further comprising a code conversion step of converting into a standard character code based on a table showing a correspondence relationship between the two.