JPH11102384A - Command input method for cad system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save the trouble to search for a dedicated command and to easily select and input a necessary dedicated command through a single operation by indicating a desired basic shape arranged on the screen of the CAD system and selecting and inputting the dedicated command for generating the basic shape. SOLUTION: After the CAD system is started up (S31), a work drawing is displayed on its screen (S32). A cursor is positioned at a U-groove component P for metal mold fixing on the drawing and a hit is made to select and input the necessary dedicated command for generating the U-groove component for metal mold fixing (S33). Various operation as to the dedicated command is performed (S34) and a corrected or altered shape of the U-groove component P for metal mold fixing is displayed as one basic shape corresponding to the dedicated command on the screen (S35). After the operation ends by ending the command (S36), the CAD system is ended (S37).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention is suitable for use when a user of a CAD (computer-aided design) system selects a dedicated command for creating a desired figure and inputs the command to the CAD system. It relates to the command input method.

[0002]

2. Description of the Related Art In recent years, it has become common practice to draw a drawing using a CAD system in designing, and in that case, a basic shape combining straight lines and arcs is defined one by one. Instead of drawing, as shown in FIG. 5 (a), the CAD system is first started in step 1, then the work drawing is displayed on the screen as shown in FIG. Then, the CAD system developer or user creates in the past drawing process and
A required dedicated command is selected from a large number of dedicated commands registered in the database of the D system in the menu column displayed at the end of the screen as shown in FIG. Name) and perform various operations on the dedicated command in step 4.
In step 5, the basic shape corresponding to the dedicated command is displayed on the screen, and in step 6, the command is terminated. After that, whether to return to step 3 for displaying the next figure or to return to the display of the work drawing It is normal to go through the procedure of terminating the CAD system at step 7 when the selection and drawing are completed.

[0003] Here, the creation of a dedicated command (customization of a command) which is usually performed will be described.
First, prior to creating a dedicated command, a plurality of types of basic shapes (for example, shapes of a mold guide post and a pad retainer) are registered in a database as standard data that can be parametrically deformed. The dedicated command is created so as to have a basic configuration as shown in FIG.

That is, the dedicated command is usually (1) command name, (2) variable type declaration, (3) preprocessing of the dedicated command,
It shall have each part of (4) input of design conditions, (5) display confirmation, and (6) arrangement of standard data. Here, the command name in (1) indicates the identification number or the like of the command, and (2)
The variable type declaration declares whether the type of each variable used in the command is a real number type or an integer type, etc., and the preprocessing of the dedicated command in (3) is for the layer that registers the figure created by the command. Pre-processing such as automatic setting is specified.Design condition input of (4) specifies processing of inputting design conditions such as design criteria and dimensions of each part from the user or database, and display confirmation of (5) is required. A process of selectively reading from the database based on the input design conditions and displaying the graphics on the screen of the CAD system in order to allow the user to confirm whether the graphics of the standard data appropriately deformed parametrically are desired. The arrangement of the standard data in (6) should be such that the figure of the standard data is formally registered in the database of the CAD system so that the figure can be seen at a predetermined position on the drawing from a user's point of view. Where to Rules.

According to such a dedicated command, standard data of a desired basic shape can be selected by inputting various conditions such as design criteria, and for a shape similar to the basic shape of the standard data, the standard data can be selected. Can be obtained by parametrically deforming the basic shape of

The special commands created in this way are registered in the menu of the database. However, since the number of special commands is usually as large as about 100 in one system, the menu is hierarchical as shown in FIG. Often structured. In the example of FIG. 7, the menu has three hierarchies of a large classification, a middle classification, and a small classification. The large classification is, for example, a collection of instructions for forming layers, and a collection of instructions for defining primitives such as straight lines and curves. In the middle category, for example, a collection of instructions for creating the basic shape is a function of the mold. Collected parts, collected shaped parts, classified outsourced parts, etc., and subclassified, for example, in the collection of its functional parts, such as the above-mentioned guide post or pattainer, etc. I have.

[0007]

By the way, recently, CA
Since the amount of accumulated D data is increasing, so-called edit design is often performed by modifying existing data. In this case, the standard data already arranged on the drawing is used. The main task is to change shapes. Conventionally, to perform this work, the designer has to select a dedicated command from the above menu, but since the number of dedicated commands is large as described above, it takes time and effort to find a required dedicated command. There is a problem. Also, since the menu has a hierarchical structure as described above, for example,
When selecting the D2222g command in the menu shown in FIG. 7, it is necessary to hit the DDDD first, then hit the D2222, and then hit the D2222g. The operation of hitting the menu occurs, which is complicated.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to provide a command input method which advantageously solves the above-mentioned problems.
The command input method for the AD system is such that when the user of the CAD system selects a dedicated command for drawing a desired basic shape and inputs the command to the CAD system,
In the D system, special commands for creating a plurality of types of basic shapes are registered in advance in association with data of the basic shapes created by the dedicated commands, and are arranged on the screen of the CAD system. By designating a desired basic shape, the CAD system calls up and inputs a dedicated command for creating the basic shape from the registered dedicated commands based on the data of the basic shape. .

According to such a command input method, CAD
By simply designating a desired basic shape arranged on the screen of the system, a dedicated command for creating the basic shape can be selected and input. It is possible to save the trouble of searching, and even if the menu has a hierarchical structure, it is possible to easily select and input a required dedicated command by one operation.

In the method of the present invention, the above C
By designating a desired basic figure arranged on the screen of the AD system, the CAD system is caused to call a dedicated command for creating the basic shape from the registered dedicated commands based on the data of the basic shape. When inputting a command, a dedicated command name for creating the desired basic figure may be displayed on the screen of the CAD system.

[0011] According to the above, CA by a veteran
Since a beginner can learn how to use the D system, it is not necessary for a beginner to individually listen to a dedicated command when drawing a new drawing.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a configuration diagram showing a configuration of a CAD system that implements an embodiment of a command input method for a CAD system according to the present invention, and FIG. 2 shows a configuration of drawing data registered in a database by the CAD system. FIG. 3 is a flow chart showing a drawing creation procedure using the command input method of the above embodiment, and FIG.
9 is a flowchart showing a processing procedure for implementing the command input method of the embodiment.

The CAD system here is physically a general computer system including a central processing unit, a storage device, a screen display device, an input operation device such as a mouse and a keyboard, and a printing device such as a printer and a plotter. As shown in FIG. 1, functionally, a graphical user interface (GUI) 10 for mediating exchange between a user of the CAD system and the CAD system via a screen display, and an internal And a system core 20 for processing, where G
The UI 10 includes a start module 11 for opening a guidance display for starting a work on the screen, an end module 12 for opening a guidance display for ending the work on the screen, and a user operating the mouse based on display contents on the screen. A screen input module 13 for inputting an instruction given by a hit or a drag operation to the system core 20, a screen output module 14 for outputting a graphic or the like on the screen, and a screen input module 13 selectively input via the screen input module 13 or the like. A command dispatcher 15 for inputting a command to the system core 20 as a command.

The system core 20 includes a start module
Start processing module that is connected to 11 and performs work start processing
An end processing module 22 connected to the end module 12 to perform work end processing; and a screen input control module 23 connected to the screen input module 13 to perform screen input control.
A screen output control module 24 connected to the screen output module 14 to perform screen output control; a command control module 25 connected to the command dispatcher 15 to perform command control; and a start processing module 21 to a command control module 25. And a data processing module 26, a graphic processing module 27, a drafting output module 28, and a macro object file 29 connected to each other, and a database 30 connected to each of the data processing module 26 to the drafting output module 28. In the macro object file 29, a large number of dedicated commands having a configuration as shown in FIG. 6 are registered, and standard data corresponding to these dedicated commands are registered in the database 30. I have.

The drawing data registered in the database 30 has a plurality of layers such as a layer 1 and a layer 2 as shown in FIG. 2A, and each layer contains data indicating a shape. . The minimum unit (primitive) indicating a shape is a straight line, a circular arc, or the like. A method of combining these and registering them as one piece of standard data includes a block shown in FIG. The block has various attribute information as shown in FIG. 2B, and the attribute information includes
A data name that is a file name of the standard data is included. Note that, in the CAD system here, the data name is defined by a combination of four names of a qualifier name, a file name, an element name, and a version name, as shown in FIG. The drawing data created by the designer using the system is a collection of primitives such as straight lines and standard data registered in blocks, as shown in FIG.

When a designer (user of the system) draws a drawing using the CAD system in designing,
As shown in FIG. 3A, the CAD system is first started in step 31, and then, in step 32, the work drawing is displayed on the screen as shown in FIG. 3B. Then step 33
For example, when modifying or changing the mold fixing U-groove part P on the work drawing, the CAD system developer or user created the data in the past drawing process and registered it in the CAD system database. A special command for creating the U-groove part P is selected and input from among the many special commands. At this time, in this embodiment, as shown in FIG. Position the cursor on the U-groove part P for fixing the mold, and place the U-groove part P for fixing the mold.
To select and input a required dedicated command for creating the U-groove part P. Then, various operations are performed on the dedicated command in step 34,
At step 35, the modified or changed shape of the U-groove part P for fixing the mold as one of the basic shapes corresponding to the dedicated command is displayed on the screen, and the command is terminated at step 36. The user selects whether to return to step 33 or to return to the display of the work drawing for displaying the graphic, and after drawing is completed, the CAD system is terminated in step 37.

In this procedure, when the dedicated command is input in step 33, the G command of the CAD system is used.
The UI 10 and the system core 20 perform processing according to the flow shown in FIG. 4. Here, first, in step 41, the system waits for a command input, and in the next step 42, the user hits somewhere on the screen. If a hit is found, it is determined in the next step 43 whether or not the hit position is within the range of the menu column displaying the dedicated command name. If the hit position is not within the range of the menu column, it is determined in step 44 whether or not there is a graphic at the hit position. If there is a graphic, the process proceeds to step 45.
In step 45, it is determined whether or not the figure at the hit position is registered as a block. If registered, in step 46, the data name (the qualifier name, the file name, , Element name and version name)
In step 47, a special command is extracted from the macro object file 29.

In the next step 48, it is determined whether or not the same character string as the above-mentioned data name exists in the data of the extracted special command. If the same character string exists, the process proceeds to step 49. In step 49, the command name of the extracted dedicated command is displayed on the screen, and then in step 50, the dedicated command is executed. When it is determined in step 43 that the hit position is within the range of the menu column displaying the dedicated command name, the process proceeds from step 43 to step 51, and in step 51,
After fetching the command name of the dedicated command corresponding to the hit position from the database, the process proceeds to step 49 to perform the same processing as described above. On the other hand, if there is not the same character string as the above data name in the data of the dedicated command extracted in step 48, the process proceeds to step 52, and in step 52, the dedicated command not yet extracted in the macro object file 29 is Judge if there is no more,
If there is still a dedicated command, the process returns to step 47 to retrieve the next dedicated command. By repeating this, the dedicated commands are sequentially obtained from the macro object file 29, and the dedicated command corresponding to the data name of the block forming the graphic at the hit position can be found.

If it is determined in step 52 that there is no dedicated command that has not been extracted yet in the macro object file 29, there is no dedicated command corresponding to the figure at the hit position.
After displaying the command selection error message on the screen,
The process returns to step 41. In step 44, if there is no figure at the hit position,
Even when the figure at the hit position is not registered as a block, the process proceeds to step 53, where a command selection error message is displayed on the screen, and then the process returns to step 41.

Thus, according to the command input method of this embodiment, only by designating a desired basic shape arranged on the screen of the CAD system, a dedicated command for creating the basic shape is selected and input. This makes it possible to save the trouble of searching for the required dedicated command from a large number of dedicated commands, and to easily select the required dedicated command with one operation even if the menu has a hierarchical structure. Can be entered.

According to the method of this embodiment, the CAD
By instructing a desired basic figure arranged on the screen of the system, the CAD system calls and inputs a dedicated command for creating the basic shape from among the registered dedicated commands based on the data of the basic shape. Sometimes CA
Since the dedicated command name for creating the desired basic figure is displayed on the screen of the D system, the CAD
A beginner can learn how to use the system, and thus can eliminate the need for a beginner to listen to dedicated commands one by one when drawing a new drawing.

Although the present invention has been described with reference to the illustrated examples, the present invention is not limited to the above examples, and can be appropriately modified by those skilled in the art within the scope of the claims. The configuration of the CAD system for implementing the method of the present invention may be other than the above example.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a configuration of a CAD system for implementing an embodiment of a command input method for a CAD system according to the present invention.

FIG. 2 is a configuration diagram showing a configuration of drawing data registered in a database by the CAD system.

FIG. 3 is a flowchart showing a drawing creation operation procedure using the command input method of the embodiment.

FIG. 4 is a flowchart showing a processing procedure for implementing the command input method of the embodiment.

FIG. 5 is a flowchart showing a drawing creation operation procedure using a conventional command input method.

FIG. 6 is a configuration diagram showing a basic configuration of a dedicated command.

FIG. 7 is an explanatory diagram showing a hierarchical structure of a command menu and a conventional method of selecting and inputting a required dedicated command therefrom.

[Explanation of symbols]

 10 Graphical user interface (GUI) 11 Start module 12 End module 13 Screen input module 14 Screen output module 15 Command dispatcher 20 System core 21 Start processing module 22 End processing module 23 Screen input control module 24 Screen output control module 25 Command control module 26 Data processing module 27 Graphic processing module 28 Drafting output module 29 Macro object file 30 Database P U-groove parts for mold fixing

Claims (2)

[Claims] When a user of a CAD system selects a dedicated command for drawing a desired basic shape and inputs the command to the CAD system, the CAD system creates the basic shapes for a plurality of types of basic shapes. Is registered in advance in association with the data of the basic shape to be created by the dedicated command, and a desired basic shape arranged on the screen of the CAD system is designated, so that the CAD system is designated. A command input method for a CAD system, characterized in that a dedicated command for creating the basic shape is called from the registered dedicated commands and input based on the data of the basic shape. 2. A dedicated command for creating a basic shape is registered in the CAD system based on data of the basic shape by designating a desired basic figure arranged on a screen of the CAD system. When calling and inputting from a dedicated command, a dedicated command name for creating a desired basic figure is displayed on a screen of the CAD system,
The command input method for a CAD system according to claim 1.