JPH0676011A - Leader line generating and updating system - Google Patents

Abstract

PURPOSE:To prevent the generation of erroneous leader lines for parts and to simplify the movement of parts and the comments of leader lines by using the data of a table of parts at the time of generating and updating the leader lines on a CAD drawing. CONSTITUTION:Information set by a parts row interval setting part 3 and the data of the table of parts are used to generate leader lines. Information of correspondence between comments of leader lines and those of the table of parts and information of parts corresponding to leader lines are set by an inter- comment correspondence setting part 7 and a leader line-parts correspondence setting part 8. Thus, leader lines are moved by the movement of parts, and leader lines are automatically corrected by the correction of comments in the table of parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead line generation / update system, and more particularly to a lead line generation / update system for a computer-based drawing design and drawing system.

[0002]

2. Description of the Related Art A conventional drawing design / drawing system using a computer (hereinafter referred to as a CAD system) is a leader line generation / update method in which a parts table is created from attribute data set in advance for parts and a leader line is created. And the function of manually updating, the function of manually correcting the items in the parts table, the function of manually correcting the comments already created in the CAD drawing, and the elements (parts and leader lines) Is configured to have a function of manually moving.

[0003]

In the conventional lead line generation / update method described above, a lead line is manually created for each part used in an assembly drawing while referring to a parts table created in a CAD drawing. However, the part indicated by the leader line may not correspond to the actual part correctly, and when the leader line is generated, the comment of the leader line is re-entered even though there is a comment in the parts table. In addition, if it is necessary to correct or move the comment of the leader line that has already been generated due to the correction of the parts table or the movement of the parts, it is necessary to do everything manually. However, it has a problem that it is complicated.

[0004]

The lead line generation / updating method of the first invention corresponds to a part line correspondence setting section for setting a correspondence relationship of a line in a parts table with respect to a part in a CAD drawing and a specified part. The corresponding row search unit that searches for a row in the parts table, the comment extraction unit that extracts a comment for creating a leader line from the row searched by the corresponding row search unit, and the comment obtained from the comment extraction unit And a leader line generation unit that creates a leader line by using the leader line.

The lead line generation / update method of the second invention is the lead line generation / update method of the first invention,
It is provided with an inter-comment correspondence setting unit that sets a correspondence relationship between comments in a CAD drawing, and an inter-comment correspondence search unit that searches for a correspondence relationship between comments.

Furthermore, the lead line generation / update method of the third aspect of the present invention is the lead line generation / update method of the first or second aspect of the present invention, wherein a lead line part correspondence setting unit that sets a correspondence relation of parts to lead lines is provided. And a lead line component correspondence search unit that searches for a corresponding lead line from a designated component.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the lead line generation / update method of the present invention. As shown in FIG. 1, 3 to 5 of the present embodiment are the constituent features of the first invention, 7 and 9 are constituent features of the second invention, and further, 8 And 10 are constituents added to the third invention.

First, the parts information search unit 1 searches and classifies preset attribute data for each part in the CAD drawing. In addition, the parts table generator 2 performs the judgment of the same parts, the calculation of the number of the same parts, and the automatic addition of the item number based on the classified data searched by the parts information searching unit 1. Create a table.

FIG. 2 is a diagram showing an example of the search by the part information search unit 1 and the parts table generation by the parts generation unit 2. Figure 2
As shown in, the component (1) and the component (2) are the same component and the number is two. The item number is automatically generated when the parts table is created. Create a comment for each line of the bill of material at the time of generation.

Then, the parts line correspondence setting unit 3 searches from which part in the CAD drawing the line of the parts table created by the parts table generator 2 is created, and it corresponds to the line of the parts table. A pointer indicating a correspondence relationship with a part is set.

FIG. 3 is a diagram showing an example of the data structure of the CAD drawing after the component line spacing pointer is set by the component line spacing correspondence setting unit 3. This component line spacing pointer is set so that a line can be searched for from a component or a component can be searched from a line as shown in FIG. Further, in the case of the same part, it is set so that each part can be searched from the row.

On the other hand, the corresponding line search unit 4 includes the parts information search unit 1, the parts table generation unit 2, and the parts line correspondence setting unit 3.
In a drawing in which a bill of materials has already been created, search for which row in the bill of material the part instructed to generate the leader line corresponds to. In FIG. 3, when the part (1) is designated, the row of item number = 1 is set as the search result.

The comment extraction unit 5 also extracts the information of the comment used when generating the leader line from the line obtained by the corresponding line search unit 4. The extraction of the comment is performed by extracting the comment corresponding to the item name in the parts table according to the item name (product number etc.) defined in advance.

FIG. 4 is a diagram showing an example of a CAD drawing in which a lead line is generated for the component (1). As shown in FIG. 4, the leader line generation unit 6 uses the comment obtained by the comment extraction unit 5 to generate a leader line.

FIG. 5 is a diagram showing an example of the data structure of the CAD drawing after the leader line generation unit 6, the comment correspondence setting unit 7, and the leader line component correspondence setting unit 8 are executed. As shown in FIG. 5, the inter-comment correspondence setting unit 7 sets an inter-comment pointer indicating the correspondence between the comment of the lead line and the comment of the parts table. This inter-comment pointer is set so that the other comment can be searched from either comment. Further, as shown in FIG. 5, the outgoing line component correspondence setting unit 8 sets a leader line component pointer indicating the correspondence between the outgoing line and the component. This lead line component pointer is set so that the other comment can be searched from either comment.

FIG. 6 is a flow chart showing an example of the operation of the comment update process of FIG. As shown in FIG.
The inter-comment correspondence search unit 9 operates by being incorporated in the comment updating process of the CAD system. At the time of updating the comment, the comment searched by the inter-comment correspondence search unit 9 is updated at the same time as updating the target comment.

FIG. 7 is a flow chart showing an example of the operation of the component moving process of FIG. As shown in FIG. 7, the lead line component correspondence search unit 10 is incorporated in the component movement processing of the CAD system to operate. When a part is moved, the lead line searched by the lead line part correspondence search unit 10 is moved at the same time as the part to be moved.

[0018]

As described above, according to the lead line generation / updating method of the present invention, a correspondence relationship between a part, a row of a parts table, and a heading row is set, and a lead line is generated when a lead line is created. By searching for the correspondence between the line and the line of the BOM and generating the comment of the leader line from the item of the BOM, it is possible to avoid creating an incorrect leader line for the part. Since the input can be omitted, it has an effect that the lead line can be easily created.

Further, in the lead line generation / updating method of the present invention, since the lead line corresponding to the time of updating the parts table or moving the parts can be found by searching the pointer, the lead line updating is automatically performed. It has the effect of being able to

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a leader line generation / update system of the present invention.

FIG. 2 is a diagram showing an example of a search by a part information search unit 1 and a parts table generation by a parts generation unit 2;

FIG. 3 is a diagram showing an example of a data structure of a CAD drawing after a component line spacing pointer is set by a component line spacing correspondence setting unit 3;

FIG. 4 is a CA in which a leader line is generated for the component (1).
It is a figure which shows an example of D drawing.

FIG. 5 is a drawing line generation unit 6 and a comment correspondence setting unit 7;
And CA after executing the setting section 8
It is a figure which shows an example of the data structure of D drawing.

6 is a flowchart showing an example of an operation of a comment update process of FIG.

FIG. 7 is a flowchart showing an example of the operation of the component movement process of FIG.

[Explanation of symbols]

 1 parts information search unit 2 parts table generation unit 3 parts line correspondence setting unit 4 correspondence line search unit 5 comment extraction unit 6 lead line generation unit 7 comment correspondence setting unit 8 lead line parts correspondence setting unit 9 comment correspondence search unit 10 Lead line component correspondence search section

Claims (3)

[Claims] 1. A parts line correspondence setting unit that sets a correspondence relationship between lines in a parts table for a part in a CAD drawing, a corresponding line search unit that searches a corresponding parts table line from a specified part, and the correspondence. A comment extraction unit that extracts a comment for creating a leader line from the line searched by the line search unit, and a leader line generation unit that creates a leader line using the comment obtained from the comment extraction unit. Leading line generation and updating method characterized by. 2. The comment correspondence setting unit for setting a correspondence relationship between comments in a CAD drawing and the comment correspondence search unit for searching a correspondence relationship between comments, according to claim 1. Lead line generation and update method. 3. A leader line component correspondence setting unit that sets a correspondence relation of a component to a leader line, and a leader line component correspondence search unit that searches for a corresponding leader line from a designated component. Claim 1 or 2
Leading line generation and update method described.