JP3271452B2 - CAD layer automatic setting method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD automatic layer setting method.

[0002]

2. Description of the Related Art In recent years, in the field of machinery, architecture and other fields, a computer-aided design and drafting method, so-called C
Design drafting is performed by AD (Computer Aided Design).

In the design drafting using the CAD, the drawing is divided into a plurality of layers, the drawing is performed for each layer, and a part or other arbitrarily set group is formed. Complete the drawings.

[0004] The number itself of this layer, the storage capacity of the computer used, although to some extent defined are those in excess of 1000 layers be large, what kind of component in advance which layer before starting the drawing, Alternatively, it is determined whether to draft the grouped portion, and the drafting is started.

Conventionally, for example, a layer operation table as shown in FIG. 6, for example, is first created, initial settings such as colors and comments used for each layer are made in accordance with the table, and drawing is started for each layer. You.

[0006]

However, as the drawing progresses, if the number of parts to be newly drawn increases or a detailed drawing is added, an unused layer that is not used is searched for and the unused layer is searched for. You have to comment the layers and set the colors to use.

If the number of used layers is about several tens, searching for unused layers does not require much labor. However, if the number of used layers is about 1000, the unused layers are selected from among them. There is a problem that searching for a document itself requires a lot of labor and hinders drafting work.

Accordingly, an object of the present invention is to provide a CAD automatic layer setting method for searching for an unused layer and automatically performing the initial setting of the layer when a new layer to be used increases during drafting. It is to provide.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides an identification code representing an object to be drafted together with the identification code.
The ray on which the drawing object represented by the different symbol is drawn
CAD data for drawing data associated with
And the input / output interface of the CAD device.
Inputting an identification symbol through a source, searching all the identification symbols from the drawing data, and selecting a layer number in which the identification symbol is associated with the layer number. , from a database is previously stored a number of layers required to drafting a prepared drawing target
Calculating the number of layers required by the drawing object represented by the input identification number; and obtaining the number of layers by selecting a layer number other than the layer number selected by the step of selecting the layer number. a step of determining the number of the number of the obtained layer, the layer number obtained by the step of determining the number of said number of layers is the input
Comprising the steps of registered <br/> recorded in the drawing data as the corresponding layers to identification number, a layer automatic setting methods CAD characterized in that it comprises a.

In the CAD automatic layer setting method according to the present invention, the previously prepared database in which the number of layers necessary for drawing a drawing object is determined is stored every time the drawing object is drawn. The number of layers on which the drafting target is drawn is associated with the drafting target,
Data is stored sequentially.

[0011] In the Layer automatic setting method of CAD of the present invention, the step of obtaining the number of layers is pre-SL manufactured view object is required, the inputted identification in the database
If there is no data corresponding to the drawing object represented by numbers, as number of layers required <br/> drawing objects represented by the inputted identification number, the CAD apparatus Lee
By setting the number of layers input from the interface, the set number of layers is set as the number of layers obtained in the step of obtaining the number of layers.

Further, in the CAD automatic layer setting method according to the present invention, the identification symbol is a part number derived from a drafted drawing object.

[0013]

SUMMARY OF] The present invention configured as described above, by inputting an identification symbol indicating the object of newly drafting, CAD
Input what is to be drawn in the device . Then, searching for all the identification symbols from all drawing data, by finding the layer is mapping has for each identification code, mow it layer is not correspondence is unused layers min . Then, for the inputted identification symbol, the number of layers required for drawing the object is obtained from a database prepared in advance, and the obtained number of layers is selected as necessary from the unused layers. Then, by registering this in association with the identification symbol, a layer required by the object to be newly drawn is set.

According to the present invention, a database which defines the number of layers necessary for drawing a drawing object prepared in advance is stored in the database every time a drawing is performed. When the same object is newly drawn by accumulating, the search range when searching the number of layers required for the object to be newly drawn by searching this database is limited. It increases with each drafting.

According to the present invention, when there is no identification symbol in the database, the number of unused layers can be registered by arbitrarily setting the required number of layers.

Further, according to the present invention, by using a part number on a drawing as an identification symbol, data for an identification symbol representing a drafting object is not newly set as drawing data. Automatic settings can be made.

[0017]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing a configuration of a CAD apparatus to which the present invention is applied. This CAD device
Lines, comment characters, and the like are input to the CPU 1 via the input / output interface (I / F) 4 by a keyboard, a mouse, a touch pen, or the like as the input device 5,
The CAD program is executed in the CPU 1, a calculation is performed so that the image is drawn in the color of the initial setting on the coordinates of the designated layer, the image is drawn on the screen of the output device 6 such as a CRT, and is stored in the RAM 3. It is temporarily stored and stored on the hard disk 2. The CAD program and the like are provided by the hard disk 2 or a ROM (not shown).

A drawing method using this CAD apparatus is shown in FIG.
First, as shown in FIG. 6, as an initial setting before starting design / drafting, a layer operation table is created and what to draw on each layer is determined as shown in FIG. S1) In accordance with this operation table, setting of colors, comments, and the like of each layer and group registration of each component as a component to be drafted with each layer are performed (S2).
Then, drafting is performed on each layer (S3).

Next, the drafted drawings are examined, and necessary parts are corrected or added, for example, the number of parts is increased, parts using standard parts are used as original parts, and the drawings are drawn. The contents of change such as adding a detailed view of the part are determined (S4).

If a layer becomes necessary for new drafting as a result of this examination (S5), an unused layer is searched for, and the color of the found unused layer, comment setting, group registration, etc. The setting is performed (S6). If a new layer is not required, it is determined whether or not all drawings have been completed. If completed, the process ends (S7).

When the setting of the unused layer is completed, the flow returns to step 3 to perform a new drafting.
To step 7 are repeated, and the drawing is finally completed. Search and setting of this unused layer (S
6) is automated by applying the present invention as described later. The above is the basic flow of drafting using the CAD device.

Next, a description will be given of an unused layer search and its setting provided by the present invention. FIG.
6 is a detailed flowchart of step 6 in FIG.

First, the CAD apparatus searches for an unused layer,
The drawing data that needs to be added is read (in the case of drawing data during drafting, the data) (S11), and any layer of the read drawing, usually the most basic drawing,
For example, on a layer on which an assembly drawing in which all parts are assembled is drawn, a schematic configuration diagram of a part which is a drawing object to be newly drawn and an identification symbol of the part are written (S12) ( In the case where components are to be combined after the drawing of a part for which an assembly drawing is newly created is completed, only the identification symbol is entered on an arbitrarily determined appropriate layer, and after the drawing is completed (after the final step), May be deleted).

In this embodiment, as the identification symbol, a symbol called a balloon (or balloon) in which each part number on the drawing is written is used. This balloon, as shown in FIG. 4, is entered in the drawing, and a part number indicating what the part is is described in correspondence with the symbol in the balloon. Then, information as to which layer the drawing drawing of the part is described in is stored in the CAD apparatus.

Next, the symbols or numbers in the balloon are searched from all the layers, and they are sorted (S13).
In the sorted order, a search is made for balloons having information on which a layer is set (S14). Then, it is detected that the layer has not been set (S15)
Is selected (pickup) for its identification symbol (S
16) If it is set, the layer number is selected (pick-up) (S17). As a result, since layers have been set for balloons (identification symbols) for which drafting has already been performed, it is known that the layers are used, and as shown in FIG. ) And unused layers. At the same time, it can be seen that the balloon (identification symbol) for which no layer is set is a balloon of a component that requires a new layer in step 12.

Then, the number of layers required by the selected balloon, that is, the part to be newly drawn is determined by referring to a database described later (S18). When it is detected that there is no data in this database (S19), the number of layers required is arbitrarily input (S20).

Next, the layers are selected from the layer numbers other than the layer numbers selected in the step 17 (S17), that is, the unused layers from the unused layers (S21). At this time, if continuous layer numbers can be selected, the layer numbers may be continuous, and if not, the layer numbers may be discrete.

Then, a color, a comment, and the like are set for each layer selected from the unused layers, these layers are grouped, and the groups are associated with the balloon selected in step 16, and the balloon is selected. Is registered as a layer on which the drawing object (part) is drawn (S22). Thereafter, the process proceeds to step 7 in FIG.

The setting of the above-mentioned colors and comments is set by the way of drawing the drawing. For example, a drawing is drawn for a certain layer, a symbol such as a balloon is displayed for the next layer, and a dimension line is displayed for the next layer. Since a plurality of layers are used for drawing of one component, such as writing, each of them is color-coded. Needless to say, there are various methods other than such a dividing method.

In the database, the part numbers that would require the same number of layers are registered in advance by classifying them, so that if the part numbers for which new drafting is to be performed are in this typed database, Is selected as the required number of layers, and if it is not in the database, the designer sets the required number of layers arbitrarily. If the part number and the number of layers used are saved every time a drawing is performed, the contents of the database will increase. The number of layers for drawing parts is automatically obtained. This is, for example, the same part,
In other words, even if the same part number is given, if the detailed part is different, only the drawing is newly drafted without changing the part number itself. Normally, it is possible to draw with almost the same number of layers. Therefore, if a part is registered as the same type as the number of layers in the database, the required number of layers will be obtained from this part number next time. .

As described above, by applying the present invention,
When a layer for performing new drafting becomes necessary in the middle of drafting, an unused layer is automatically searched, and the layer can be immediately provided for drafting a new part.

[0033]

As described above, according to the present invention,
From the identification symbol in the drawing data, it is determined whether or not there is a layer associated therewith, an unused layer is searched, and the number of layers necessary for newly drawing is obtained from a database. Is set from among the unused layers, so that it is possible to automatically provide a layer for performing new drafting without labor for searching for an unused layer.

Further, according to the present invention, the number of layers used is sequentially accumulated each time a drawing is performed in the database, so that the data can be automated more efficiently as the drawing data increases.

In the present invention, when the number of layers is not stored in the database, the number of layers can be arbitrarily input, so that the required number of layers can be manually set.

Further, in the present invention, since the part number of the drawing is used as the identification symbol, it is not necessary to newly provide a symbol for defining the object on the drawing, and the drawing data currently used is used as it is. Thus, the present invention can be implemented.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a CAD apparatus.

FIG. 2 is a flowchart showing a flow of drafting using a CAD device.

FIG. 3 is a flowchart showing a flow of searching and registering an unused layer to which the present invention is applied.

FIG. 4 is a drawing showing an example of the drawing.

FIG. 5 is a diagram showing a state of using and not using a layer.

FIG. 6 is a drawing for explaining a layer operation table.

[Explanation of symbols]

1 ... CPU, 2 ... Hard Disk, 3 ... RAM,
4 input / output I / F, 5 input device, 6 output device.

Claims (4)

(57) [Claims] (1)Along with the identification symbol for the drafting object,
The drawing on which the drafting object represented by the identification symbol is drawn.
CAD data is attached to the drawing data
And memorize it Via the input / output interface of the CAD device identification
symbolIs enteredAnd searching for all identification symbols from the drawing data,
Layer in which another symbol is associated with a layer number
Selecting a number;  Rays required for drafting a drawing object prepared in advance
The numberPre-stored databaseFromSaid input
Represented by an identification numberRays required by drafting object
Determining the number of layers, and selecting the layer number by selecting the layer number.
Determining the layer number other than the layer number
Determining the number of layers determined by the above, and determining the number of layers determined by the number of layers.
NumberSaid enteredThe layer corresponding to the identification number
handTo the drawing dataThe steps to registerHavingSpecially
Automatic layer setting method for CAD. 2. A database in which the number of layers necessary for drafting a drafting object prepared in advance is determined every time a drafting of the drafting object is performed. The correspondence of the drafting object is performed,
2. The method according to claim 1, wherein data is sequentially stored. Wherein determining a number of layers before Symbol made view object is required, the inputted identification in the database
If there is no data corresponding to the drawing object represented by numbers, as number of layers required <br/> drawing objects represented by the inputted identification number, the CAD apparatus Lee
The number of layers input from the interface is set, and the set number of layers is set as the number of layers obtained in the step of obtaining the number of layers. CAD layer automatic setting method. 4. The CAD layer automatic setting method according to claim 1, wherein the identification symbol is a part number drawn from a drafting target.