JP3137412B2 - Output scale switching method of reference diagram - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for changing the scale of a reference diagram assigned to a drawing in a CAD system or the like.

[0002]

2. Description of the Related Art In a CAD system, a reference diagram is sometimes used in order to reduce the capacity of a drawing file and to facilitate uniform change of a specific portion of a drawing. When a reference drawing is assigned to a certain drawing, only the information for specifying the reference drawing and the assignment position information are stored in the drawing file. The actual drawing data of the reference diagram is stored in another file called a reference diagram file. Therefore, for example, as shown in FIG.
In the case where a plurality of screws 22a, 22b, and 22c having the same shape are described in 1, the basic shape of the screw 23 is registered as a reference drawing (RD) 24, and As shown in FIG. 18, information for specifying the reference diagram 24 and only the arrangement positions 26a, 26b, 26c of the reference point 25 on the drawing 21 are stored. Thereby, the data amount of the drawing 21 can be reduced, and the screw 22
The shapes of a to 22c can be uniformly changed.

[0003]

By the way, in general, CA
The drawing data handled in D is represented by an absolute value independent of the display and output scale. For this reason, when outputting to a CRT display device or a plotter, the output control unit prepares an output scale of each drawing as a variable, and draws drawing data read from a drawing file, a reference drawing file, or the like based on the variable. The coordinates are converted and output. For this reason, when changing the scale of a drawing file, it is necessary to change the reference scale referenced in the drawing file to the same scale. There was a problem that the change operation was troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made in consideration of the above circumstances. The purpose is to provide.

[0005]

According to the present invention, there is provided a method for switching the scale of an output of a reference diagram, wherein the reference diagram is allocated in a drawing based on information for specifying the reference diagram to be allocated and an allocation position thereof. A scale and an output scale of the reference diagram are provided as variables, respectively, and the drawing and the reference diagram are output in a size based on the variable, and when switching the output scale of the reference diagram allocated in the drawing, the designation information Identifying a reference map to be scaled based on the reference map; displaying a current scale of the identified reference map; and setting the variable indicating the designated scale of the reference map based on the designated scale. Changing step.

[0006]

According to the present invention, when a reference diagram to be scale-switched is specified based on the designation information, the current scale of the reference diagram is displayed. The value can be easily determined. Therefore, the scale switching operation of the reference diagram can be made extremely easy.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a functional block diagram of a CAD system for implementing an output scale switching method of a reference diagram according to an embodiment of the present invention.

This system comprises an input unit 1, a drawing / editing control unit 2, an output control unit 3, a drawing database 4, a reference (RD) database 5, a display unit 6, and a drawing unit 7. The input unit 1 includes a pointing device such as a mouse, a keyboard, and the like, and is used to specify line elements and coordinates to be created and corrected, and to input various commands. Drawing / edit control means 2
Creates and corrects the contents of the drawing database 4 and the reference drawing database 5 and allocates the contents of the reference drawing database 5 to predetermined files of the drawing database 4 in accordance with the input information from the input means 1.

The drawing database 4 and the reference drawing database 5 have contents as shown in FIG. Each of the drawing files F1,..., Fi,... Of the drawing database 4 is composed of a set of element data. For a portion to which the reference drawing RD is assigned, information (RDk) for specifying the reference drawing as element data. And its arrangement position (xj, y
j) are stored. The substantial data of the reference diagram RD is stored in the reference diagram database 5.

The output control means 3 outputs the drawing data stored in the drawing database 4 and the reference drawing database 5 to the display means 6 and the drawing means 7 on a predetermined scale. The output scale of each drawing file and each reference drawing is stored in a variable called plot scale 8. As shown in FIG. 3, the output scale stored in the plot scale 8 is an independent value for each of the referenced drawing files (F1, F3) even for the same reference diagram (RDk). I have.

Next, the operation of the present system configured as described above will be described. Now, for example, when a reference diagram is to be allocated to the drawing data 11 as shown in FIG. 4, “graphic allocation” is selected and executed from the menu area 12 of the display unit 6 by operating the input unit 1. At this time, the prompt line 13
The current display scale (1/1) of the drawing data 11 is displayed. When "graphic assignment" is executed, a message "Please specify the type of drawing to be assigned" is displayed on the prompt line 13 as shown in FIG. 5, and the drawing to be assigned from the menu area 12 is referred to. (Reference drawing). When "reference drawing" is designated, as shown in FIG. 6, the file name registered as the reference drawing is displayed in the menu area 12, and the message "Please select the reference drawing to be assigned" is displayed on the prompt line 13. Is displayed, a file name (for example, RD3) of a desired reference diagram is designated.

When the file name of the reference diagram is designated, the reference diagram 14 is displayed in a window format in a part of the drawing display area 10 as shown in FIG.
Is displayed, the user operates the input means 1 to move the cursor 15 to the allocation position in the reference diagram. This allows
As shown in FIG. 7, reference drawing 14 is allocated on drawing 11. On the drawing 11, a mark 17 indicating the arrangement position of the reference point 16 of the reference drawing 14 in the drawing 11 is displayed.

Next, the drawing 11 to which the reference FIG.
When the display scale is changed, "change" is selected from the menu area 12 in the edit mode as shown in FIG. When "change" is selected, "Please indicate the item to be changed." Is displayed on the prompt line 13 as shown in FIG.
Is displayed, "scale" is designated from the menu area 12. When "scale" is designated, as shown in FIG. 10, each scale value is displayed in the menu area 12, and "Please specify the scale" is displayed in the prompt line 13. Therefore, when "1/2" is selected, for example, as shown in FIG. 11, the drawing 11 is scaled down to 1/2 and displayed. However, at this point, only the variables in the drawing file (for example, F1) of the plot scale 8 shown in FIG. 3 have been changed.
As shown in FIG. 1, the scale of the reference figure is still reduced to 1/1.

Then, "change" is selected again from the menu area 12, and a desired reference diagram is designated by the cursor 15 in the single mode (single designation) or the multi mode (plural designation) as shown in FIG. As shown in FIG. 13, a message “Please indicate the item to be changed.” Is displayed on the prompt line 13. In response to this, when "scale" is selected again, a message "Please indicate the scale" is displayed on the prompt line 12 as shown in FIG. 14, and each scale value is displayed in the menu area 12. Is displayed. At this time,
The output control means 3 outputs the value of the plot scale 8 to the display means 6 according to the control from the drawing / edit control means 2. Thus, as shown in FIG. 14, the prompt line 13 displays an indication that the current scale of the reference diagram is 1/1. Therefore, the operator can easily designate the scale of the reference diagram as "1/2" based on the current scale display. By the above procedure, as shown in FIG. 15, the scale change of the drawing data including the reference drawing is completed.

As described above, according to the output scale switching method of the reference diagram of the present embodiment, the current scale of the reference diagram is displayed on the prompt line 13, so that the scale change operation of the reference diagram is facilitated. Further, according to this embodiment, since the scale change can be performed by specifying the reference diagram to be scaled, there is an advantage that the output scale can be directly applied to the portion not desired to be scaled. is there.

In the case where the scale of a reference drawing referred to in the drawing is necessarily changed in accordance with the change in the scale of the drawing, in order to further improve the operability, the scale of the drawing is changed when the drawing is changed. May be changed unconditionally. In this case, for example, as shown in FIG. 16A, the plot scale 8 of the drawing file F1 and the plot scale 8 of the reference diagram RDk referred to in the file F1 are linked or changed. Alternatively, the plot scale 8 of the drawing file F1 and the plot scale 8 of the reference diagram RDk may be the same variable.

[0017]

As described above, according to the present invention, when the output scale of a reference diagram is changed, the current scale of the reference diagram is displayed, so that the scale of the reference diagram is changed according to the scale change of the drawing. And the operation is simplified.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing a main part of a CAD system for implementing an output scale switching method of a reference diagram according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining the contents of a drawing database and a reference diagram database in the system.

FIG. 3 is a diagram showing the contents of a plot scale of output control means in the same system.

FIG. 4 is a schematic diagram of a display screen for explaining the operation of the system.

FIG. 5 is a schematic diagram of a display screen for explaining an operation of the system.

FIG. 6 is a schematic diagram of a display screen for explaining an operation of the system.

FIG. 7 is a schematic diagram of a display screen for explaining the operation of the system.

FIG. 8 is a schematic diagram of a display screen for explaining the operation of the system.

FIG. 9 is a schematic diagram of a display screen for explaining an operation of the system.

FIG. 10 is a schematic diagram of a display screen for explaining the operation of the system.

FIG. 11 is a schematic diagram of a display screen for explaining the operation of the system.

FIG. 12 is a schematic diagram of a display screen for explaining the operation of the system.

FIG. 13 is a schematic diagram of a display screen for explaining the operation of the system.

FIG. 14 is a schematic diagram of a display screen for explaining the operation of the system.

FIG. 15 is a schematic diagram of a display screen for explaining an operation of the system.

FIG. 16 is a diagram illustrating a plot scale in a system according to another embodiment of the present invention.

FIG. 17 is a diagram for explaining a conventional method of allocating reference diagrams.

FIG. 18 is a diagram for explaining the contents of drawing data and reference drawings in the same assignment method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Input means, 2 ... Drawing / edit control means, 3 ... Output control means, 4 ... Drawing database, 5 ... Reference figure database, 6 ... Display means, 7 ... Drawing means, 8 ... Plot scale.

Claims (1)

(57) [Claims] 1. A method according to claim 1, further comprising: allocating the reference diagram in the drawing based on information for specifying the reference diagram to be allocated and an allocation position thereof, and including, as variables, an output scale of the drawing and an output scale of the reference diagram. Outputting a reference diagram in a size based on the variable, and, when switching an output scale of the reference diagram allocated in the drawing, specifying a reference diagram to be scale-switched based on designation information; and Displaying the current scale of the reference diagram, and changing the variable indicating the scale of the specified reference diagram based on the specified scale. Switching method.