JP2003132100A - Cad system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a CAD system which is capable of easily reproducing past correction instructions (manuscript corrections), and correction descriptions on the basis thereof. SOLUTION: The correction instructions, with respect to a drawing sheet, area associated with the correction of a real drawing sheet based on it, which are stored. Based on this, the correction history of the drawing sheet can be verified, even after the correction. When storing the drawing sheet data after the correction, the difference between the drawing sheet data in reading and after the correction is stored as the correction history data. Accordingly, the drawing sheet in an arbitrary correction stage can be reproduced completely, so that it is not necessary to store all of the drawing sheet data for each correction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD system, and more particularly to a CAD system having a redlining function.

[0002]

2. Description of the Related Art In design work such as civil engineering and construction, a designer (contractor) first creates a drawing, and the orderer redlines (draws a change instruction on the drawing) the redprint. The designer finishes the design drawing by repeating the work of modifying the drawing according to the contents of. Even now, this work is often performed while printing the drawings on paper and delivering the drawings by mail between the ordering and ordering parties, but this method is troublesome and time-consuming. In view of such a problem, various systems have been proposed in the past, in which a computer can electronically perform redlining by an orderer and correction of a drawing by an orderer who receives the redline.

As an example of such a system as described above, Japanese Unexamined Patent Application Publication No.
C described in Japanese Patent Publication No. 000-76319 (hereinafter referred to as Document 1)
There is an AD system. In this system, a designer (contractor) first creates drawing data with a CAD terminal and saves it in a CAD drawing data storage area of a server. The user (orderer) takes out the necessary drawing data from the data storage area and performs the correction work with the client equipped with the pen type input device. In this work, the content drawn on the correction information input / output layer by the pen-type input device is made into point sequence data in the unit of one stroke, and is created as the correction data. After the correction is completed, the correction data is saved in the correction data storage area of the server. The designer takes out the correction data from the server, displays it together with the drawing data, and corrects the drawing according to the correction contents. By using this system, the user of the CAD drawing can easily give a drawing correction instruction to the drawing designer, and the designer can easily correct the CAD drawing by using the correction data.

As another example, JP-A-8-23523
There is a parallel design management system described in Japanese Patent Publication No. 1 (hereinafter referred to as Document 2). This system includes a review history collection unit that collects and displays review messages transmitted and received between workers in parallel design by a plurality of workers (designers). Here, "review" refers to a change when a worker browses design data created by a worker other than himself and finds a part that he / she wants to change or a part whose design intention is unknown. It is the act of adding a request by the operation or comment. The review history collecting means provides a function of displaying a review history on a screen for each specific change request location, for example. As a result, each worker can easily grasp the comments and correction plans of workers other than himself / herself with respect to a specific portion.

As still another example, JP-A-5-203
There is a book change management device described in Japanese Patent Publication No. 72 (hereinafter referred to as Document 3). In this device, every time the book data is changed, the changed book data is stored together with a change number indicating the number of changes. When the change requester reads the book data and displays it on the screen of the terminal and inputs a change mark indicating the change request location using an input device such as a light pen, the address information of the change mark on the screen is the book data. It is saved with a change number obtained by adding 1 to the change number of. By using this device, you can change while watching the change mark displayed on the screen, automatically search whether there is an unchanged part in the changed book, By overlapping and displaying the change mark, it is possible to confirm the changed portion in the change processing that has already been performed.

[0006]

[Problems to be Solved by the Invention] During design work or after completion of design, it is possible to verify what type of redlining instruction has been made in the past and whether or not the correction has been appropriately made.
It may be necessary to go back to a specific modification stage and start over the design. However, the systems described in Documents 1 and 2 do not consider such a case. That is, the CAD system described in Document 1 stores the correction data in the server separately from the CAD drawing data, but is not provided with a means for managing the history of the correction data. In addition, although the parallel design management system described in Reference 2 can display the review history collected regarding a specific changed portion of the design drawing, the past change request (corresponding to redlining) and the actual drawing change are displayed. It is not supposed to confirm the correspondence of.

Further, the book change management device described in Document 3 manages the book data and the change mark data in association with each other by using the change number, so that the past change history can be confirmed. However, in this device, since all the book data is saved every time the change is made, the total data size becomes large and the utilization efficiency of the storage device is poor.

[0008]

A CAD system according to the present invention made to solve the above problems reads drawing data, creates correction instruction data in a state where the drawing is displayed on a screen, and makes the correction instruction. A correction instruction means for giving a unique correction instruction identifier to data and storing the data, a correction means for reading the drawing data and the correction instruction data, and correcting the drawing in a state where the drawing and the correction instruction are displayed on the screen in an overlapping manner. A correction history storing means for storing a correction history data indicating a difference between the drawing data at the time of reading and the corrected drawing data by adding a unique correction identifier, and associating the correction instruction data with the correction history data. And an associating unit for storing data.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION In a CAD system according to the present invention, since a correction instruction relating to a drawing and an actual correction of the drawing based on the correction instruction are stored in association with each other, the past drawings can be drawn at any time during the design work or after completion of the design. You can check the revision history of. Regarding the saving of the modified drawing data, since the difference between the drawing data at the time of reading and the modified drawing data is saved as the modification history data, the modification history can be completely saved with a small amount of data. It is not necessary to save all the drawing data each time a correction is made, because the drawings at any correction stage can be completely reproduced with the correction history data and the first drawing data thus saved.

Design work using the CAD system according to the present invention will be specifically described with reference to FIG. The system of FIG. 1 includes a terminal 10 (hereinafter referred to as a CAD terminal 10) used by a designer for creating / changing a drawing, and a terminal 12 (hereinafter referred to as a redlining terminal 12) used by an orderer for a correction instruction (redlining) of a drawing. C) by a network (not shown)
It has four data storage units 16 to 19 created in a storage device 14 of a server (not shown) connected to the AD terminal 10 and the redlining terminal 12. The four data storage units 16 to 19 may be created as individual files, but the four data storage units 16 to 19 may be provided in the same file. In this case, the reference numeral 14 represents one file.

(1) Drawing Creation First, the designer creates the drawing requested by the orderer using the CAD terminal 10. In the example of FIG. 1, a circle 10 is used for simplicity.
A drawing 100 including three elements of 1, a rectangle 102, and a triangle 103 is created. Next, the created drawing 100 is given to the orderer by a predetermined method. In the example of FIG. 1, the drawing data is indirectly passed to the orderer by saving the drawing data in the drawing saving unit 18 of the server. In addition to this, as a method of delivering the data to the orderer, it is possible to record the data on a magnetic medium and deliver it to the orderer, or to directly transmit the data to the redlining terminal 12 through a network (not shown).

(2) Correction instruction (redlining) The orderer reads the drawing data stored in the drawing storage unit 18 into the redlining terminal 12 and displays the drawing 100 on the screen,
Perform correction instruction work. The correction instruction work is an operation of creating a correction instruction feature on the screen. The modification instruction feature is a drawing element used for showing the designer what he / she wants to modify. For example, to indicate the desired correction point, a line segment, leader line, arrow, enclosing mark (circle,
An ellipse, a rectangle, etc.) can be used as the correction instruction feature. In addition, a character string (text box) can be used as a correction instruction feature in order to enter a verbal description.
In the example of FIG. 1, two correction instruction features 110 and 112 (consisting of leader lines and character strings) of “change to square” and “horizontally elongated” are created. The description data of the correction instruction feature thus created on the screen corresponds to the correction instruction data of the present invention. In the following explanation,
The description data of the correction instruction feature is called redline data, the correction instruction feature is called a redline feature, and the correction instruction identifier is called a redline identifier.

The redlining data is created and stored in a form different from the data of the drawing features (straight line, circle, rectangle, character string, etc.) created by the CAD terminal 10. In order to distinguish the data in this way, for example, a layer structure is added to the drawing data to distinguish the drawing layer and the redline layer,
For redlining, work should be performed on the redlining layer. In the example of FIG. 1, the above two redlining features 1
10, 112 are created on the redlining layer 20.
The data created in the redlining layer 20 is stored in the storage device 14
(Or file 14) is stored in the redline data storage unit 19.

It should be noted that it is sufficient that the redline data and the drawing data can be logically distinguished. Therefore, for example, when drawing data is expressed as a group of drawing objects, the drawing object has a "redlining" attribute, and a drawing object created in the redlining mode has a "redlining" attribute set to true (TRUE). By doing so, the drawing object and the redlining object may be distinguished for each drawing object.

A unique redline identifier is given to the redline data. The format of the redline identifier is, for example, “prefix for redline + date”. The redline identifier can be used for the layer name of the redline layer or for the object name of the drawing object. In the example of FIG. 1, the reddish layer 20 has “RedIn-2001010”.
A layer name of the form "1" is given. In addition, if it is expected that redlining will be done in multiple stages during the same day,
By adding the time, serial number, etc. after the date, it is possible to give a unique redline identifier to the redline at each stage.

(3) Drawing correction Upon completion of the redlining work by the orderer, the designer reads the redlining data and the drawing data from the server and executes CAD.
The drawing and the correction instruction by redlining are displayed in a superimposed manner on the screen of the terminal 10 (reference numeral 100A). The designer corrects the drawing while looking at the correction instruction displayed on the screen in this way.
In the example of FIG. 1, the triangle 103 is changed to the rectangle 104 (the four sides are equal) in accordance with the modification instruction of "change to square", and the rectangle 10 is modified in accordance with the modification instruction of "landscape".
2 is made wider (reference numeral 100B. In this example, the width is 1).
(Changed from 00 mm to 150 mm). In addition, it is assumed that the correction work is executed in three stages: deletion of the triangle 103, addition of the rectangle 104, and change of the width of the rectangle 102 to 150.

(4) Saving of correction history data After the drawing is corrected, when the drawing data is saved, the correction history data representing the difference between the drawing feature and the drawing feature is saved. In the example of FIG. 1, the correction history data 22 (see FIG. 2) describing the work contents of the above three stages is stored in the storage device 1.
4 (or file 14) in the correction history storage unit 17. At this time, a unique correction identifier is given to the correction history data. The correction identifier is given, for example, in the form of “correction history prefix + date”. In the example of FIG. 1, “Hi
The identifier "st-20010102" is added to the correction history data. In addition to the above-mentioned correction history data, the whole drawing data after correction may be stored in a separate file, but this is not essential to the present invention.

(5) Saving of Association Information In the CAD system according to the present invention, when the revision history data is saved, the association data between the revision history data and the redlining data is also saved. In the example of FIG. 1, the storage device 14 stores the association data 24 in which a redline identifier and a correction identifier are paired.
(Or file 14) is stored in the association data storage unit 16. FIG. 3 shows an image of associating the redline data with the correction history data. In this way, by adding a unique identifier to each of the correction history data and the redline data and associating them with each other, the redline data corresponding to a certain correction history data can be specified, and vice versa. .

(6) Utilization of Data In the CAD system according to the present invention, the drawing data initially created, the correction history data and the association data saved for each correction are used to perform the drawing at any correction stage. Can be reproduced and output (screen display, printing, etc.). Further, by using the above data, it is possible to realize various functions for confirming after the correction how the drawing has been corrected based on a certain redlining. For example, a function to display the drawings before and after modification alternately in the same screen area or to display them side by side on the screen, or to display the progress of obtaining a modified drawing by performing a series of modification work on the original drawing in animation. Can be realized.

(7) Redlining / correction support function The past redlining results and revision history can be utilized for subsequent redlining and correction work. For example, on the designer side, by investigating the redlining record and the revision history in a transaction with a certain orderer, the designer can find out the tendency and characteristics of the redlining of the orderer, and what kind of redemption can be performed for a certain type. It is possible to estimate whether the demands of the ordering party can be satisfied by making a correction. Similarly, the purchaser side should find out the tendency and characteristics of the designer's drawing by examining the redlining record and revision history in the transaction with a certain designer, and pay particular attention to what point to redline. By grasping this in advance, it is possible to perform redlining accurately without fail.

In order to realize the above function, first,
The redline data and correction history data are stored in a database in association with the orderer name, designer name, drawing type, drawing target, and other elements (drawing attribute information). Next, during the redlining work, the redlining candidates are searched in the database according to predetermined drawing attribute information such as the name of the designer, the type of drawing, the drawing target, etc., and the redlining candidate list is displayed on the screen. In this way, the orderer can add the redlining feature by simply selecting the redlining of the desired content from the list, so that the redlining work becomes efficient. Similarly, at the time of correction work, the above database is searched for correction candidates according to drawing attribute information such as the name of the orderer, the type of drawing, and the redlining target.
If the redline candidate list is displayed on the screen, the correction work becomes efficient.

[0022]

As described above, in the CAD system according to the present invention, the correction instruction (redlining) related to the drawing and the actual correction of the drawing based on the correction instruction are stored in association with each other. Easy to check. Regarding the saving of the drawing data after correction, the difference between the drawing data at the time of reading and the drawing data after correction was saved as correction history data, so it is not necessary to save all drawing data every time correction is made. Also, it is possible to completely reproduce and output the drawing at any correction stage. The contents (contents) thus output can be converted into images (still images, moving images) and published on the Internet, or can be used for classes for drawing education. It is also possible to investigate the man-hours for drawing based on the redlining history and the correction history.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a design work using a CAD system according to the present invention.

FIG. 2 shows an example of correction history data.

FIG. 3 is an image diagram of association between redline data and correction history data.

[Explanation of symbols]

10 ... CAD terminal 12 ... Redline terminal 14 ... Storage device (or file) 16 ... Association data storage unit 17 ... Correction history storage section 18 ... Drawing storage section 19 ... Redline data storage 20 ... Red layer 22 ... Correction history data 24 ... Association data

Continued front page    (71) Applicant 501097525             Yoshitaka Minami             5-1-2 Miyahara, Yodogawa-ku, Osaka-shi, Osaka             Kansai Co., Ltd. 3rd floor, Shin-Osaka Yachiyo Building             Information Technology Research Center (71) Applicant 501069555             Kansai Research Institute Inc.             5-1-2 Miyahara, Yodogawa-ku, Osaka-shi, Osaka             Shin-Osaka Yachiyo Building Annex 3rd floor (72) Inventor Shigenori Tanaka             4-7-606 Takemidai, Suita City, Osaka Prefecture (72) Inventor Hitoshi Furuta             1-246, Hadoyama, Uji City, Kyoto Prefecture (72) Inventor Yoshitaka Minami             5-1-2 Miyahara, Yodogawa-ku, Osaka-shi, Osaka             Kansai Co., Ltd. 3rd floor, Shin-Osaka Yachiyo Building             Information Technology Research Center F-term (reference) 5B046 KA05

Claims (3)

[Claims] 1. A correction instruction means for reading drawing data, creating correction instruction data in a state in which the drawing is displayed on a screen, adding a unique correction instruction identifier to the correction instruction data, and storing the correction instruction data. Correcting means for reading the correction instruction data and correcting the drawing with the drawing and the correction instruction superimposed on the screen, unique to the correction history data indicating the difference between the drawing data at the time of reading and the drawing data after the correction A CAD system comprising: a correction history storage unit for adding and storing the correction identifier of 1. and an association unit for storing association data of the correction instruction data with the correction history data. 2. A correction instruction history database in which the correction instruction data is stored in association with predetermined drawing attribute information, and at the time of a correction instruction work, the correction instruction candidates are specified according to the predetermined drawing attribute information of the target drawing. 2. The CAD system according to claim 1, wherein the history database is searched to display a correction instruction candidate list. 3. A correction history database storing the correction history data in association with predetermined drawing attribute information,
The correction candidate is searched in the correction history database in accordance with predetermined drawing attribute information of the target drawing and a correction candidate list is displayed at the time of correction work.
CAD system according to.