JPH07192032A - CAD device - Google Patents

Abstract

(57) [Summary] [Purpose] System information and parameter information are saved, and system information and parameter information are changed by calling these information. [Configuration] System information changed or recognized by the information control unit 6 in accordance with a command from the command input unit 2 is stored in the external storage unit 4. When it is necessary to change the system information, the system information stored in the external storage unit 4 is read out and replaced with a part or all of the system information stored in the internal storage unit 3. Information control means 6 for the graphic element designated as the copy source
The parameter information is recognized by the information output means 5 and stored in the external storage means 4 by the information output means 5. When the parameter information needs to be changed, the parameter information of the graphic element of the copy source stored in the external storage device 5 is taken into the internal storage means 3 and a part of the parameter information of the graphic element of the copy destination or Replace with all.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to the setting / setting of system information.
The present invention relates to a CAD device capable of easily setting / changing parameter information of individual graphic elements that have been changed or drawn.

[0002]

2. Description of the Related Art When drawing with a CAD device, a command input means such as a keyboard or a mouse is used to
Various commands are given to the D device. The first is a drawing command given at the time of execution of drawing work. For example, a drawing / editing command for specifying the type of graphic element to be drawn and its editing contents, a coordinate / window for executing the specified drawing / editing command.・ Drawing position commands that specify layers etc., screen control commands such as enlargement / reduction of drawings and enlargement / reduction / move / redraw of the display area on the screen are included in this, and drawing is performed on the display according to these drawing commands. Is done.

The second is a parameter command for defining the attributes of individual graphic elements drawn by the drawing commands. This parameter command includes the type of the figure,
Its thickness, color, dimension line type, its arrow shape, color, leader line type, hatch spacing and angle, grid format,
It includes the end point search method, character height, size, font type, layer to be drawn, etc. Since it is troublesome to specify this parameter command one by one each time each figure element is created, it is usually stored in the CAD device side as a setting common to each figure, and each figure element is drawn. Each time, it is added as parameter information to each graphic element. Parameter information common to each graphic element stored on the CAD device side is called system information. Since it is troublesome to set this system information each time the CAD device is activated, the most general value is stored as an initial value in an external storage means such as a hard disk and read when the CAD device is activated.

[0004]

As described above, the conventional C
In the AD device, the system information when the CAD device is activated has an initial value determined by a certain setting. However, when creating a drawing, there are usually special setting patterns that use certain parameters for each individual or group. Since the initial values are set as system information for the settings of each parameter of the CAD device, the system information determined by the initial values must be changed so that the CAD user can easily use it, or the system information is changed according to a certain standard. I have to. That is, FIG. 13 is a flowchart until the drawing creation of the conventional CAD device is started, and if the setting of the system information needs to be changed after the CAD device is activated (YES in step 17), the change is performed (step 17). 18). Then, this is repeated until the setting change becomes unnecessary, and when the setting change is completed, the drawing is created.

However, in such a conventional CAD device, it is easy to change if there are only one or two setting items, but if there are many items, it takes a lot of time before the design starts. Spends. Especially, a beginner unfamiliar with the operation does not know the type and meaning of the system information, so that it takes more burden. Moreover, the more the number of inputs, the higher the probability that an input error will occur. In many cases, typos can be discovered only after the graphic element is actually created. In that case, correct the settings,
It is necessary to recreate an incorrectly created graphic element or change the parameter information held by the data of the graphic element. There is also a method to reduce the input load and mistakes by using a micro file (a series of instructions combined in one file) for such a series of work, but even in that case, it is time-consuming because it executes many instructions. Spends.

In addition to the above-described work of setting system information before starting drawing, the system information may be temporarily changed at some point during drawing creation to create a graphic element, and the drawing element may be restored later. There is also. For example, if the system information is set to Mincho, character height 5 mm, character width 5 mm, and white, Gothic font, character height 3 mm, character width 3 mm, and blue characters are displayed in the middle of drawing. Sometimes I want to draw. In this case, it is necessary to change the system information and draw the characters in Gothic font, and then change the system information to the setting of the Mincho font before the change. However, in the conventional CAD device, it is necessary to remember the system information before the change by itself and restore the system information one by one to the system information before the change.

As described above, the CAD apparatus has considerably more types of system information that can be set than other software,
Especially for beginners, setting system information is difficult and troublesome. It is also the same as when the system information is set incorrectly and many graphic elements are created and then the parameter information of the graphic elements is corrected. This is one of the reasons why it is difficult for beginners to attach themselves to CAD.

The present invention has been proposed in order to solve the above-mentioned problems of the prior art. The first object is to:
It is an object of the present invention to provide a CAD device with good operability in which system information can be saved and called at any time to easily change the system information. A second object of the present invention is to provide a CAD device which can easily change the parameter information of a graphic element by copying the parameter information of a graphic element as the parameter information of another graphic element. is there. A third object of the present invention is to provide a CAD device capable of easily searching and recognizing stored system information and parameter information and changing them as necessary.

[0009]

According to a first aspect of the present invention, a CAD apparatus has a drawing program for displaying individual graphic elements in a predetermined coordinate system and attributes of the individual graphic elements as attributes common to each graphic element in advance. Internal storage means for storing specified system information and outputting the stored drawing program and system information to the main controller, drawing command, system information change command, current system information recognition command, Command input means for inputting a command for saving changed system information or current system information and a command for fetching the saved system information to the information control means, a drawing command from the command input means, and an input from the internal storage means Main control that executes the drawing program according to the created system information and creates parameter information that indicates each figure element and its attribute And the internal storage means by recognizing the current system information stored in the internal storage means, changing the system information, and reading the stored system information from the external storage means in accordance with a command from the command input means. Information control means for substituting a part or all of the system information stored in, an external storage means for storing the initial value of the system information, and the system information changed or recognized by the information control means, and the command means. Information output means for outputting the system information changed or recognized by the information control means to the external storage means, and a graphic display means for displaying a menu for drawing or individual graphic elements constituting the drawn drawing. It is characterized by having and.

A CAD device according to a second aspect is the CAD device according to the first aspect, in which a command for recognizing parameter information of a designated graphic element, a command for changing parameter information,
Command input means for inputting a changed or recognized parameter information storage command and a stored parameter information capture command to the information control means, and recognition of the parameter of the designated graphic element according to the command from the command input means. The parameter information stored in the external storage device is fetched into the internal storage means in accordance with the parameter change of the designated graphic element and the information fetching instruction, and a part or all of the parameter information of the designated graphic element is replaced. Information control means, external storage means for storing parameter information changed or recognized by the information control means, and parameter information changed or recognized by the information control means in the external storage means according to a command from the command means. And an information output unit for outputting the information.

According to a third aspect of the present invention, in the CAD apparatus of the first or second aspect, the CAD apparatus displays the contents of each of a plurality of system information or parameter information stored in the external storage means in the form of an information file. A storage information display / editing means for editing as needed is provided.

[0012]

In the CAD apparatus having the above structure, the system information changed or recognized by the information control means is stored in the external storage means. And
When it is necessary to change the system information, the system information stored in the external storage means is read and replaced with a part or all of the system information stored in the internal storage means.

In the CAD apparatus according to the second aspect, the parameter information of the graphic element designated as the copy source by the command input means is recognized by the information control means, and is stored in the external storage means by the information output means. When it is necessary to change the parameter information of the graphic element designated as the copy destination, the parameter information of the graphic element of the copy source stored in the external storage device is taken into the internal storage means, and the graphic element of the copy destination is acquired. Replace part or all of the parameter information of.

In the CAD apparatus of claim 3, the information display / editing means displays the contents of each of a plurality of system information or parameter information stored in the external storage means in the form of an information file, and edits them as necessary. To do.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the drawings.

(1) Configuration of the embodiment ... FIGS. 1 and 2 FIG. 1 is a functional block diagram showing the configuration of the CAD device 9 of the present embodiment. The CAD device 9 of the present embodiment includes a graphic display means 1 and Command input means 2 for giving various commands to the CAD device 9, internal storage means 3 for storing a drawing program and various information when the CAD device is executed, and information for the CAD device as C
External storage means 4 for storing the information outside the AD device, and information C
An information output means 5 for outputting from the AD device to the external storage means 4; an information control means 6 for recognizing the information on the internal storage means 3 or reading the information from the external storage means 4 and loading it into the internal storage means 3; It is provided with an information display / editing means 7 for displaying and editing the information stored in the external storage means, and a main control device 8 for controlling each of these means to execute its function.

Specifically, the graphic display means 1 displays a menu for drawing and individual graphic elements and character elements constituting the drawn drawing. The command input means 2 includes a drawing command, a system information change command, a current system information recognition command, a change / current system information save command, a saved system information fetch command, a parameter information change command, a parameter information recognition command, a change command. Input the recognition parameter information save command and the save parameter information fetch command. The internal storage means 3 stores a drawing program, system information, parameter information, and graphic element information created based on these while the CAD device is running. Main controller 8
By executing the drawing program based on the system information stored in the internal storage means 3, individual graphic elements having parameter information as attributes are created, and by combining these graphic elements, the display means 1
The drawing is displayed above.

The external storage means 4 stores initial values of system information, changed / recognized system information, and changed / recognized parameter information. The information output means 5 follows the change / recognition system information storage instruction from the instruction input means 2.
The system information changed / recognized by the information control means 6 is output to the external storage means 4. Further, according to the change / recognition parameter information storage command, the parameter changed by the information control unit 6 or the parameter information of the designated graphic element is output to the external storage unit 4. Information control means 6
Recognizes the current system information stored in the memory 3, changes the system information, recognizes the parameter of the specified graphic element, and changes the parameter of the specified graphic element according to the command from the command input means 2. . Further, according to the information fetching instruction, the system information and the parameter information saved from the external storage device are fetched into the memory. The stored information display / editing means 7 displays the contents of each of a plurality of system information or parameter information stored in the external storage means 4 in the form of an information file, and edits them as necessary. , Which displays the information file name and its contents in a hierarchical menu format is used.

FIG. 2 shows an example of a concrete configuration of the CAD device. The graphic display means 1 is a CRT or a liquid crystal display device 10, and the command input means 2 for inputting a command is a keyboard 11, a mouse 12, a CAD. The internal storage means 3 for storing the system information of the device 9 and the parameter information of the graphic element is a memory 13, and the external storage means 4 for storing the system information of the CAD device 9 and the parameter information of the graphic element is a rewrite of a hard disk or a magneto-optical disk. Possible storage means 14,
The main controller 8 is composed of a CPU 15, which is built in a personal computer 16.

(2) Operation of Embodiment The operation of the CAD apparatus of this embodiment will be described below with reference to FIGS. Change of initial value of system information ... FIGS. 3 and 4 First, as shown in the flowchart of FIG. 3, the procedure for starting drawing is to change the initial value of system information while the CAD device 9 is activated. If it is necessary (YES in step 19), a system information change command is input from the command input means 2, and the information control means 6 receives the system information change command and stores the system information stored in the internal storage means 3. The initial value is changed (step 20).
As shown in FIG. 4, the changed system information 23 is stored in the internal storage means 3 and the parameter information of each graphic element is determined in the drawing work to be executed later. This system information changing operation is repeated until the setting change becomes unnecessary. When the setting change is completed, a change information saving command is input from the command input means 2 such as a keyboard or a mouse (step 21). By this save command, as shown in FIG. 4, the changed system information is output from the internal storage means 3 to the system information file 24 of the external storage means 4 by the action of the information output means 5 (step 22).

Since the system information thus output to the external storage means 4 is stored outside the CAD device 9, if the display / editing means 7 for stored information, which will be described later, is used, the CAD device itself is stored. It can be easily edited without affecting. For example, the processing speed can be further increased by leaving only the necessary part of the system information, or a file with another setting can be added. In addition, the contents of the system information to be saved are usually different depending on the user's personal name, group name, purpose of the drawing to be drawn, and so on. A plurality of system information files 24 can be stored in the external storage means 4 by giving names.

Incorporation of system information ... FIG. 5 and FIG. 6 When system information different from the initial value is used, if the system information necessary for the above work is already stored in the external storage means 4, the external storage is performed. The system information is taken into the CAD device 9 from the means 4. FIG. 5 is a flowchart showing the procedure at that time.

That is, in FIG. 5, if it is necessary to set the system information of the CAD device 9 after the CAD device is activated (YES in step 25), the system information stored in the external storage means 4 is changed to the CAD device 9. The command to be taken into is input from the keyboard 11. Then, the contents of the system information file 24 stored in the external storage means 4 are stored in the internal storage means 3 as shown in FIG. It is taken into the system information 23 (step 26). As a result, the system information file 24 as shown in FIG.
6B shows the contents of the system information 23 before importing
The contents of the system information 23a after the system information file 24 such as

As a result, the setting of certain system information can be changed quickly and accurately. In addition, CA
If the D device is registered as an initial setting file of a person who always uses it, when the CAD device is started, the data of the system information file suitable for the user is automatically replaced in place of the initial value when the CAD device is shipped. The system information can be imported into and you can immediately start drawing with the usual settings.

Change of system information in the middle of drawing ... Figs. 7 and 8 When it is desired to change the system information currently set in the middle of drawing, first, as shown in the flow chart of Fig. 7, information is input from the keyboard 11. A command to recognize the current system information is input to the control means 6 (step 2).
7). That is, since the currently set system information is stored in the format shown in FIG. 8A on the internal storage means 3 of the CAD device 9, the content is recognized by the information control means 6. The system information recognized by the information control means 6 is output to the external storage means 4 as the system information file 24 by the action of the information output means 5 which subsequently receives the information storage instruction from the instruction input means 2 (step 28).

After the current system information is saved in this way, the system information is changed (step 29). For example, as shown in FIG. 8B, the system information 2
Character information in 3a is, for example, Gothic font, character height 3
mm, character width 3 mm, and change to blue. Many pieces of system information for other graphic elements may be changed. In this way, the drawing is created under the changed system information.

When it is desired to restore the settings before changing the system information of the CAD device 9, the system information file 2
A command for fetching the system information stored in No. 4 into the CAD device 9 is input from the keyboard 11 to the information control means 6 (step 30). In accordance with this fetching instruction, the information control means 6 fetches the information stored in the system information file 24 output to the external storage means 4 into the internal storage means 3 (step 31). As a result, the system information on the internal storage means 3 becomes like the system information 23 shown in FIG. 8C, and the state before the change can be restored.

In this case as well, if the system information changed on the way is also stored in the external storage means in the same manner as described above, the contents of some system information files 24 are fetched as necessary, System information can be easily set and changed.

Saving and Importing Parameters ... FIGS. 9 and 10 FIGS. 9 and 10 show examples of copying the parameter information of a graphic element to another graphic element. For example, if the character size of the dimension line on the drawing and the shape of the arrow are not unified, if the parameter information of other graphic elements can be copied to a non-uniform graphic element, that graphic element's The parameters can be changed easily.

Therefore, in such a case, in this embodiment,
As shown in the flow chart of FIG. 9, first, an instruction to extract the parameter information of the graphic element to be copied from the internal storage means 3 to the external storage means 4 by the instruction input means 2
Input is made from the keyboard 11 to the information control means 6 (step 32). When this command is input, the information control means 6 recognizes the parameter information of the selected graphic element, for example, the dimension line 34 of FIG. 10 (step 3).
3), the parameter information of the recognized dimension line 34 is output to the external storage means 4 by the information output means 5 and stored as the parameter information file 37 (step 3).
5).

Next, a command for fetching the parameter information file 37 stored in the external storage means 4 into the graphic element is input from the keyboard 11 (step 36), and the graphic element for fetching the parameter information, for example, the dimension line 39 in FIG.
Is selected (step 38). Then, the external storage means 4
The parameter information stored in the parameter information file 37 of FIG. 10 is taken into the internal storage means 3 by the information control means 6, this parameter information is replaced with the parameter information of the dimension line 39, and is shown in the dimension line 41 of FIG. In this way, the parameter information of the graphic element of the copy destination is changed to the same as the parameter information of the graphic element of the copy source (step 40).

In this way, since the saved parameter elements are stored as external data, the parameter information of one graphic element can be taken into another graphic element regardless of whether it is the same drawing or another drawing. The graphic elements can be unified as a whole.

Display / Edit of Saved Information ... FIGS. 11 and 12 FIGS. 11 and 12 explain the procedure for confirming and editing the information file saved in the external storage means 4 using the information editing means 7. is there. In other words, if you save a lot of system information and parameter information, you cannot judge which file has the settings like, and you cannot judge only by the file name, or you accidentally make settings incorrectly from the wrong file. Sometimes. Further, there is a case where it is desired to change a part of the stored system information and parameter information in a state different from the execution of the CAD device as described above. The information display / editing means 7 of this embodiment responds to such a request.

FIG. 11 is a flow chart showing the operation of the information display / editing means 7. First, when an instruction to display or edit information is entered from the keyboard 11 (step 42), it is stored in the external storage means 4. A list of information files that are displayed is a graphic display means 1 such as a CRT 10.
It is displayed above (step 43). As a list of the information files, various menu formats can be appropriately adopted. In the present embodiment, for example, as shown in FIG. 12A, a plurality of file names 45 and 46 and a confirm button 4 are provided.
8, a work menu such as an end button 60, and a mouse cursor 47 for instructing these are displayed on the screen. Then, in the screen display of FIG. 12A, the file name 45 at the top of the list is selected and highlighted. Then, the confirmation button 48 is clicked with the mouse cursor 47 to confirm the selection of the file 45 at the top (step 44). In addition,
When selecting another file, pressing the downward arrow key of the keyboard 11 returns the file name 45 to the normal display state, and the file name 46 in the line below it is highlighted. Also, instead of using the arrow keys of the keyboard 11, a desired file name may be selected by the mouse cursor 47.

As described above, when the mouse 12 is moved, the mouse cursor 47 is placed on the confirm button 48 and the mouse button is pressed (clicked), the information display / editing means 7 is saved as the file name 46. The present information (system information or parameter information) is taken out and the information content is displayed on the graphic display means 1 in the form as shown in FIG. 12 (b), for example (step 49). Even in the display of FIG. 12B, a plurality of information stored in this file, for example, the color of the dimension line, the arrow, the size of the character, etc. are displayed in the menu format, and the currently selected top row is displayed. The information display 50 is highlighted. Further, similar to the display of FIG. 12A, a change button 52 and an end button 59 for changing the selected information, and a mouse cursor 47 for selecting a menu are displayed.

In the state shown in FIG. 12B, the mouse cursor 4
Move 7 to change button 52 or end button 59,
A process of changing the content of the information or ending the display of the information is selected (step 51). For example, when the mouse cursor 47 is overlaid on the change button 52 and the mouse button is pressed, the process moves to the information change process (step 53), and the selected information item as shown in FIG. 12C is set. The data change menu that can be displayed is displayed. In this change menu, items that can be changed, for example, types of colors that can be selected in the case of changing colors are displayed in a menu format, and the currently selected blue and line 54 are highlighted. Has been done. Also, in FIG.
Similar to the display of (a) and (b), a confirm button 56 and a cancel button 58 for changing the selected information, and a mouse cursor 47 for selecting a menu are displayed.

When the change menu is displayed, the line 54 displayed in blue is highlighted. Therefore, the mouse cursor 47 is moved to confirm the change result.
Cancel the change process or select the process (step 5)
5). When the mouse cursor 47 is placed on the confirm button 56 and the mouse button is pressed, the information display / change means 7 is displayed.
By the action of, the changed information is written in the information file stored in the external storage means 4, and the changed contents are displayed in the same manner as in FIG. 12B (step 57). On the other hand, when the mouse cursor 47 is placed on the stop button 58 and the mouse button is pressed, the changed data is discarded and the original FIG. 12B is displayed. When the mouse cursor 47 is placed on the end button 57 and the mouse button is pressed in the state of FIG. 12B, the drawing display unit 1 is displayed as shown in FIG. Further, in the state of FIG.
When the mouse button is pressed while overlapping with the end button 60, the display / editing work of the information file ends.

As described above, if the information display / editing means 7 is used, the contents of the system information and the parameter information stored in the external storage means 4 can be confirmed, erroneous settings can be avoided, and the information can be saved. You can easily change the information file. Further, since only the information file on the external storage means 4 is targeted for display / editing, the stored contents of information can be output to the display device at high speed.

(3) Other Embodiments The present invention is not limited to the above-mentioned embodiments, and may process only one of the system information and the parameter information. Further, the display format and the changing method of the stored information by the information displaying / changing means may be performed using another menu format or a simple editor.

Further, the CAD device can handle characters in addition to figures and can easily insert figures into sentences, so that it may be used as a word processor. Naturally, we have to consider the layout of the font size, typeface, and print settings. If the information for the word processor is stored in advance in the external storage means 4 as the system information, the word processor can be used immediately. In addition, if the parameter information relating to each character or figure set in the system information is also saved, the document can be created with various layouts. In this way, by storing the information according to the purpose, the troublesome setting before or during the drawing creation is eliminated, and the efficiency of drawing creation is improved.

[0041]

As described above, according to the present invention, the system information and the parameter information used in the CAD device can be stored in the external storage means at any time or can be used by being called from the external storage device. CA can reduce the burden on the user because the information can be changed quickly and accurately.
A D device can be provided.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a CAD device showing an embodiment of the present invention.

FIG. 2 is a perspective view showing the configuration of a personal computer that realizes the CAD device of the present invention.

3 is a flowchart showing a procedure for saving system information in an external storage means 4 in the embodiment of FIG.

FIG. 4 is a diagram showing the contents of system information when the system information is stored in an external storage means 4 in the embodiment of FIG.

FIG. 5 is a flowchart showing a procedure for loading system information from the external storage means 4 in the embodiment of FIG.

FIG. 6 is a diagram showing the contents of system information when system information is fetched from the external storage means 4 in the embodiment of FIG.

FIG. 7 is a flowchart showing an example in which system information of the CAD device 8 is temporarily stored in the embodiment of FIG. 1 and the settings are restored after being changed.

FIG. 8 is a diagram showing the contents of system information when the system information of the CAD device 8 is temporarily stored in the embodiment of FIG. 1 and the settings are restored after being changed.

FIG. 9 is a flowchart showing a procedure for copying parameter information of a graphic element to another graphic element in the embodiment of FIG.

10 is a diagram showing the content of parameter information when copying the parameter information of a graphic element to another graphic element in the embodiment of FIG. 1. FIG.

FIG. 11 shows confirmation of an information file saved in the external storage means 4 by using the information editing means 7 in the embodiment of FIG.
The flowchart which shows the procedure which edits.

FIG. 12 is a view for confirming the information file saved in the external storage means 4 by using the information editing means 7 in the embodiment of FIG.
The figure which shows the content of the information file at the time of editing.

FIG. 13 is a flowchart until the start of drawing creation of a conventional CAD device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Graphic display means 2 ... Command input means 3 ... Internal storage means 4 ... External storage means 5 ... Information output means 6 ... Information control means 7 ... Information display / editing means 8 ... Main control device 9 ... CAD device 10 ... CRT 11 ... Keyboard 12 ... Mouse 13 ... Harimo 14 ... Hard disk 15 ... CPU 16 ... Personal computer 23 ... System information 24 ... System information file 34 ... Dimension line 37 ... Parameter information file 39 ... Dimension line 41 ... Dimension line 45 ... Top file name 46 ... Second stage file name 47 ... Mouse cursor 48 ... Confirm button 50 ... Information display line 52 ... Change button 54 ... Setting data (blue) 56 ... Confirm button 57 ... Cancel button 59 ... Finish button 60 ... Finish button

Claims (3)

[Claims] 1. A drawing program for displaying individual graphic elements in a predetermined coordinate system, and system information for previously designating the attributes of the individual graphic elements as common attributes for each graphic element, and storing this information. Internal storage means for outputting the drawing program and system information to the main controller, drawing command, system information change command, current system information recognition command, changed system information or current system information save command Command input means for inputting a stored system information fetching command to the information control means, a drawing command from the command input means, and a drawing program is executed according to the system information input from the internal storage means, And a main controller that creates parameter information indicating the graphic element and its attribute, and that follows the command from the command input means. A part of the system information stored in the internal storage means by recognizing the current system information stored in the internal storage means, changing the system information, and reading the stored system information from the external storage means. Or an information control means for replacing all of them, an initial value of the system information, and an external storage means for storing the system information changed or recognized by the information control means, and the information control means is changed according to an instruction from the instruction means. Alternatively, it is characterized by comprising information output means for outputting the recognized system information to the external storage means, and graphic display means for displaying individual graphic elements constituting a menu for drawing or a drawn drawing. CAD device. 2. A command for recognizing parameter information of a designated graphic element, a command for changing parameter information, a command for saving changed or recognized parameter information, and a command for fetching saved parameter information are input to the information control means. Command input means and parameter information stored in an external storage device according to a command from the command input means, recognition of a parameter of a specified graphic element, change of a parameter of the specified graphic element, and an information acquisition command. An information control means for taking in the internal storage means and replacing a part or all of the parameter information of the designated graphic element; and an external storage means for storing the parameter information changed or recognized by the information control means, The parameter changed or recognized by the information control means according to the instruction from the instruction means. CAD apparatus according to claim 1, characterized in that an information output means for outputting information to the external storage unit. 3. A storage information display / editing means for displaying the contents of each of a plurality of system information or parameter information stored in the form of an information file in an external storage means and editing them as necessary. Claim 1 characterized by
Alternatively, the CAD device according to claim 2.