JPH05143658A - Method and device for generating oblique dimensions - Google Patents

Abstract

(57) [Abstract] [Purpose] Diagonal dimension in the diagonal dimension creation function The inclination angle can be set / changed while looking at the drawing data during diagonal dimension creation so that the diagonal dimension can be easily and realistically adjusted. It is possible to create. [Structure] A display control unit 11 controls display by the display 3. The position instructing unit 13 functions when an oblique dimension entry command is input by the command input unit 12, and allows the operator to instruct a measurement point on the drawing at which an oblique dimension line should be entered and the position of the oblique dimension line. The angle designating section 14 allows the operator to designate a tilt angle of an oblique dimension while the drawing is displayed on the screen of the display 3 by the display control section 11. The writing control unit 16 writes the oblique dimension line data on the drawing data displayed on the display 3 and stored in the memory 15 in accordance with the designated position obtained by the position designating unit 13 and the designated angle obtained by the angle designating unit 14. ..

Description

Detailed Description of the Invention

[0001]

The present invention relates to CAD (computer-aid).
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ed design) system, and more particularly to an oblique dimension creating method and apparatus for writing an oblique dimension line in drawing data created by a CAD system.

[0002]

2. Description of the Related Art Some CAD systems have a function for easily writing a diagonal dimension line in drawing data to be created. An example of the diagonal dimension writing function in the conventional CAD system will be described. (1) Display the dimension command menu and select diagonal dimension. (2) Specify the measurement point, the dimension reference point, and the dimension display direction for the dimension reference point. (3) The dimension value is placed in the center of the dimension line and the dimension line and dimension extension line are written. The oblique inclination angle is set in advance when setting the initial value.

[0003]

As described above, in the conventional CAD system, the diagonal dimension line can be easily created. However, in the conventional CAD system, the drawing tilt angle of the diagonal dimension is treated as a semi-fixed value set when setting the initial value, so that the drawing data cannot be displayed at the same time at the time of setting and it is easy. It cannot be changed to. The oblique dimension line is mainly used to make the dimension line and the dimension value easily distinguishable from the surrounding figures and the like on the drawing so as to make the dimension line and the dimension value easy to see. Therefore, if the pull-out inclination angle of the diagonal dimension can be easily changed with reference to the drawings, it is very effective to create a more effective diagonal dimension.

The present invention has been made in view of the above circumstances, and it is possible to set / change the drawing inclination angle of the oblique dimension in the oblique dimension creating function while observing the drawing data while creating the oblique dimension. It is an object of the present invention to provide an oblique dimension creating method and apparatus which enable easy and actual creation of an oblique dimension.

[0005]

A diagonal dimension creating method according to the present invention, when a diagonal dimension is entered on drawing data in a CAD system, a selecting step for selecting the entry of the diagonal dimension and a dimension line should be entered. An instructing step for instructing the positions of measurement points and dimension lines on the drawing, and a writing step for writing the data of the oblique dimension line based on the designation by the instructing step on the displayed and stored drawing data, Further, the method is characterized by including a specification changing step of performing at least one of specification and modification of an inclination angle of an oblique dimension in a state where a drawing is displayed on a display screen.

The oblique dimension creating apparatus according to the present invention is a CAD
To input a command including a diagonal dimension writing command by interactive operation with the display control means for displaying the drawing data on the display screen and the diagonal dimension creating apparatus for writing the diagonal dimension on the drawing in the system Command input means, instruction means for functioning at least when the diagonal dimension entry command is entered, for indicating a measurement point and a position of the dimension line on the drawing to which the dimension line is to be entered, and the display control. At least function with the drawing displayed on the display screen by means,
An angle designating means for designating an inclination angle of the diagonal dimension, and a writing means for writing the diagonal dimension line data on the displayed and stored drawing data in accordance with the designated position by the designating means and the designated angle by the angle designating means. It is characterized by doing.

[0007]

In the diagonal dimension creating method and apparatus of the present invention, when the diagonal dimension is entered on the drawing data in the CAD system, the diagonal dimension entry is selected, and the measurement point on the drawing to which the dimension line is to be entered and The position of the dimension line is indicated, and the data of the diagonal dimension line is written on the displayed and stored drawing data based on the designation of the position of the measurement point and the dimension line, and the drawing is displayed on the display screen. By specifying and / or changing the tilt angle of the diagonal dimension in this state, it is possible to set / change the tilt angle of the diagonal dimension in the diagonal dimension creation function while viewing the drawing data while creating the diagonal dimension. , It is possible to easily and diagonally create the actual size.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of a CAD system incorporating an oblique dimension creating apparatus according to an embodiment of the present invention. In the CAD system of the present embodiment, when drawing diagonal dimensions on drawing data, the measurement points and the positions of the dimension lines on which the dimension lines should be entered are specified, and the drawing data stored and displayed are designated. It is possible to write the data of the diagonal dimension line based on the designation and to designate and change the tilt angle of the diagonal dimension while the drawing is displayed on the display screen.

The CAD system shown in FIG. 1 includes a CAD processing unit 1, an input device 2, a display 3, an output device 4 and a storage device 5. The CAD processing unit 1 is a CPU
A central processing unit (not shown) is included, and CAD processing including diagonal dimension creation processing is executed. The input device 2 is
An operation input device such as a keyboard and a pointing device such as a mouse are included, and operation input information by an operator and other external information necessary for CAD processing are input to the CAD processing unit 1. The display 3 displays necessary information such as processed image information by the CAD processing unit 1 and information related to input by the input device 2. The output device 4 includes a plotter, a printer, or the like, and outputs the image information processed by the CAD processing unit 1 as a hard copy. The storage device 5 is composed of, for example, a disk device such as a hard disk device, operates in association with the CAD processing unit 1, and stores data such as image information before, after, and during processing as necessary. .

In this case, the CAD processing unit 1 uses the normal CA.
In addition to the configuration for executing the D process, the display control unit 1 for executing the oblique dimension creating process according to the embodiment of the present invention.
1, a command input unit 12, a position designating unit 13, an angle designating unit 14, a memory 15 and a writing control unit 16. The display control unit 11 controls the display on the display 3. Under the control of the display control unit 11, drawing data and the like are displayed on the screen of the display 3. The command input unit 12 performs a process for allowing the operator to input a command including a diagonal dimension entry command by an interactive operation with the screen of the display 3, for example. Therefore, the command input unit 12 controls the display control unit 11 as necessary. The position instruction unit 13 functions at least when the diagonal dimension entry command is input by the command input unit 12, and for example, the measurement on the drawing in which the diagonal dimension line is to be entered by interactive operation with the screen of the display 3. A process for instructing the positions of points and diagonal dimension lines by an operator is performed. Therefore, the position pointing unit 13 also controls the display control unit 11 as necessary.

The angle designating section 14 functions at least in the state where a drawing is displayed on the screen of the display 3 by the display control section 11, and for example, by an interactive operation with the screen of the display 3, an operator can set an oblique angle of an oblique dimension. Perform the process to specify. Therefore, the angle designation unit 14
Also controls the display control unit 11 as necessary. Memory 15
Stores information including CAD drawing data to be displayed by the display control unit 11. The stored contents of the memory 15 are transferred to the storage device 5 as needed. This memory 1
5 may share the memory used in the normal CAD processing in the CAD processing unit 1. Writing control unit 1
Reference numeral 6 writes diagonal dimension line data on the drawing data displayed on the display 3 and stored in the memory 15 in accordance with the designated position obtained by the position designating unit 13 and the designated angle obtained by the angle designating unit 14.

Next, the operation of the CAD system having such a structure, particularly for the oblique dimension creation, will be described in detail with reference to the flow chart shown in FIG. It is assumed that the processing shown in FIG. 2 is started as an interrupt processing by a command input during a normal drawing or editing operation in the CAD system. First, when the operator selects and inputs a diagonal dimension creation command via the command input section 12 of the CAD processing section 1 (step S1), the system is set to the diagonal dimension mode (step S2). When the diagonal dimension mode is entered, the angle designating section 14 of the CAD processing section 1 enables the operator to designate and input the tilt angle of the diagonal dimension (step S3). Regarding the designation of the tilt angle of the diagonal dimension by the angle designating unit 14, it is determined whether or not there is an angle designating input (step S4). If there is no angle designating input, it is determined whether or not there is a previous angle input designation. (Step S5). If it is determined in step S5 that there is no previous angle designation, the operator is prompted to input the angle designation again by returning to step S3. If it is determined in step S4 that there is an angle designation and if it is determined in step S5 that there is a previous angle designation (this value is preferably displayed on the screen), the CAD processing unit The position instructing unit 13 of No. 1 instructs the operator of the position of the diagonal dimension line and the measurement point on the drawing where the diagonal dimension line should be entered (step S6). The instruction of the positions of the measurement points and the diagonal dimension lines on the drawing by the position instruction unit 13 is performed by an operator's input request via the screen of the display 3, and the operator performing an instruction operation according to the input. The writing control unit 16 writes the oblique dimension line data on the drawing data displayed on the screen of the display 3 and stored in the memory 15 according to the designated position and the designated angle obtained in step S6 (step S7). Then, it is determined whether or not there is a measurement point to be further entered in the series dimension or the parallel dimension format (step S8), and if there is a measurement point to be further entered, the process returns to step S6. If it is determined in step S8 that there are no more measurement points to be entered, the system shifts to the next process.

Here, an example of a specific operation in this system will be described in detail. First, C as shown in FIG.
In the menu on the editing screen of the AD system, "Annotation"-
If you select "Execute" (annotation means to enter annotations other than drawing such as dimension lines), the menu as shown in Fig. 4 will be displayed. In this menu, select "Dimension"-"Element" , Which means that), a menu as shown in Fig. 5 is displayed, and in this menu, "Standard"-
"Diagonal dimensions" (means diagonal dimensions as standard dimensions)
When is selected, a menu as shown in FIG. 6 is displayed, and by selecting "recall"-"execute" from this menu, the diagonal dimension creation mode is entered. These selections are made by the operator while watching the editing screen of the display 3
This is done by operating the cursor movement keys or the mouse.

In this state, the operator is required to specify the angle by displaying "Please specify the angle" on the command line at the bottom of the screen of the display 3, for example. At this time, if the angle has already been specified even once, a number indicating the angle such as "(45)" is displayed after the character "Please specify the angle". If you proceed to the next step (by pressing the return key or enter key or pressing the mouse trigger button) with or without specifying the angle, the menu as shown in Fig. 7 appears. When "Automatic recognition"-"Execute" is selected, the command line on the screen displays "Please specify the first point", and the first point on the drawing where the operator should enter the diagonal dimension line. Indication of eye measurement points is required. When the first point is specified by operating the mouse etc., the command line on the screen will display "Please specify the second point" as shown in Fig. 8. Indication of the second measurement point on the drawing where the line is to be drawn is required. When the second point is designated by operating the mouse etc., the operator is instructed to display "Please specify the position of the dimension line" on the command line on the screen as shown in Fig. 9. It is required to indicate the position where the dimension line should be entered. When the position of the dimension line is designated by operating the mouse or the like, the diagonal dimension line is written on the drawing at the designated angle (for example, 45 °) at the designated position as shown in FIG. In this state, the command line on the screen will indicate "Please indicate the next point to measure", and the operator can enter the next diagonal dimension in series or parallel dimension format. It is required to input instructions for the location. If you do not specify the next measurement point, "Cancel" on the menu
Is sequentially selected, the diagonal dimension creation processing ends. In the state shown in FIG. 10, if the operator designates and inputs the next measurement point, the diagonal dimension is further written in the series dimension or the parallel dimension format.

In this way, the diagonal dimension line can be created very easily. Further, particularly when the diagonal dimension line is created, the tilt angle of the diagonal dimension can be set while observing the drawing display, so that the operability is very good. The present invention is not limited to the above-mentioned embodiment, and for example, it is possible to specify the angle independently except when the diagonal dimension line is created, or the measurement point on the drawing to which the diagonal dimension line is to be entered. The angle can be specified at any time during the instruction period of the position of the diagonal dimension line, and various modifications can be made.

[0016]

As described above, according to the present invention, C
When the diagonal dimension is entered on the drawing data in the AD system, the oblique dimension entry is selected, and the measurement point and the position of the dimension line on the drawing to which the dimension line is to be entered are instructed and displayed and stored. On the drawing data, while writing the data of the diagonal dimension line based on the designation by the instructing step, at least one of the designation and change of the tilt angle of the diagonal dimension is performed while the drawing is displayed on the display screen, It is possible to set and change the inclination angle of the diagonal dimension in the diagonal dimension creation function while viewing the drawing data during diagonal dimension creation, and it is possible to easily create diagonal dimensions that match actual conditions. Methods and apparatus can be provided.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a CAD system incorporating an oblique dimension creating apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining a schematic operation of the CAD system of FIG.

FIG. 3 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG.

FIG. 4 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG.

5 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG.

FIG. 6 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG.

7 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system in FIG.

8 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system in FIG.

9 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system in FIG.

10 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system in FIG.

[Explanation of symbols]

1 ... CAD processing unit, 2 ... Input device, 3 ... Display,
4 ... Output device, 5 ... Storage device, 11 ... Display control unit, 12
... command input section, 13 ... position designating section, 14 ... angle designating section, 15 ... memory, 16 ... writing control section.

Claims (6)

[Claims] 1. When a diagonal dimension is entered on drawing data in a CAD system, a selecting step for selecting an oblique dimension and an instruction for instructing a measurement point and a position of the dimension line on which a dimension line is to be entered And a writing step of writing the data of the diagonal dimension line on the displayed and stored drawing data based on the designation by the instruction step, and the diagonal dimension is displayed in the state where the drawing is displayed on the display screen. An oblique dimension creating method comprising a specification changing step for specifying and / or changing an inclination angle. 2. The designation changing step is included in at least the period of the instructing step.
The diagonal dimension creation method described in. 3. A diagonal dimension creating apparatus for entering a diagonal dimension on a drawing in a CAD system, wherein a display control means for displaying drawing data on a display screen and a diagonal dimension entry command by interactive operation with the display screen. Command input means for inputting a command including, and an instruction for functioning at least when the oblique dimension entry command is entered, for instructing a measurement point on a drawing to which a dimension line is to be entered and a position of the dimension line Means, an angle designating means for at least functioning in a state where a drawing is displayed on the display screen by the display control means, and designating an inclination angle of an oblique dimension; Writing means for writing the diagonal dimension line data in accordance with the designated position and the designated angle by the angle designating means. Diagonal dimension creating apparatus characterized by Bei. 4. The oblique dimension creating device according to claim 3, wherein the angle designating means includes means for holding the previously designated angle value until a new designation is made. 5. The diagonal dimension creating apparatus according to claim 3, wherein the angle designation means includes means for prompting an operator to set the angle when the angle value has not been set previously. 6. The angle designating means is a means that can be activated during a pointing operation by the pointing means.
The diagonal dimension creation device described in.