JPH05189503A - Method and device for production of angular dimension - Google Patents

Abstract

PURPOSE:To reduce the operating burden of an operator by extending the dimension auxiliary lines drawn at the both ends of an angular dimension line to a center point respectively with a simple operation and in a proper from. CONSTITUTION:An extension data generating part 16 generates the dimension auxiliary line data to extend a dimension auxiliary line drawn at the side designated by an auxiliary line designating part 13 for the angular dimension element pointed by an element pointing part 15 up to a center point with designation of a center extension designating part 14. A rewrite control part 18 rewrites the dimension auxiliary line designated by the part 13 into the dimension auxiliary line data that instructs extension of the dimension auxiliary line up to center point set by the part 16 among those angular dimension pointed by the part 15 in regard of the drawing data which are shown on a display 3 and also stored in a memory 17.

Description

Detailed Description of the Invention

[0001]

The present invention relates to CAD (computer-aid).
The present invention relates to an ed design) system, and more particularly to an angle dimension creating method and apparatus for appropriately entering an angle dimension in drawing data created by a CAD system.

[0002]

2. Description of the Related Art When using a CAD system, when entering an angle dimension indicating an angle value in drawing data,
Not only drawing the auxiliary dimension line from the measurement point as necessary to enter the angular dimension, but also drawing the auxiliary dimension line from the center point of the measurement and writing the angular dimension in order to clarify the angular dimension. Not a few.

In the conventional CAD system, when the angle dimension is created, the center point for measuring the angle, the two measuring points indicating the angle to be measured, and the position of the dimension line are designated to indicate the center. The angle between the two measurement points centered on the point is entered at the position of the indicated dimension line. Then, as described above, if you want to draw out the dimension extension line for the angle dimension from the center point of the angle, enter the angle dimension once and then edit or change the figure data to perform all the dimension dimension assistance of the angle dimension. The line was changed so that it would be drawn from the center point of the angle.

[0004]

As described above, in the conventional CAD system, when it is desired to extend the dimension auxiliary line of the angle dimension to the center point and write it, the angle can be changed by editing or changing the figure data. It was only possible to pull all the dimension extension lines together from the center point of the angle. By the way, especially in the case of an angular dimension, for the purpose of clarifying the angle reference, it is necessary to draw out a specific one of the dimension extension lines at both ends of the dimension line from the center point of the angle. It may be preferable as the form of dimension entry. However, since the angle dimension writing function in the conventional CAD system cannot perform the angle dimension writing in such a form, the operator manually draws the angle dimension when performing the dimension writing in this form. Inevitably, it required complicated operations.

The present invention has been made in view of such circumstances, and the extension of the dimension extension lines at both ends of the dimension line of the angular dimension to the center point of each dimension extension line is performed individually and simply. It is an object of the present invention to provide an angle dimension creating method and apparatus which can be easily and properly performed in a suitable manner and which can remarkably reduce the operation load of an operator.

[0006]

A first angle dimension creating method according to the present invention comprises a selecting step of selecting a change of an auxiliary line when editing angle dimension data already written on drawing data, and In connection with the selecting step, an auxiliary line specifying step of individually specifying auxiliary lines at both ends of the dimension line when changing the auxiliary line, and an instruction in the auxiliary line specifying step in relation to the auxiliary line specifying step A center extension designating step for designating whether or not to extend the auxiliary line to the center point, an element designating step for designating an angular dimension element to be changed, and an auxiliary dimension designating step for the angular dimension element designated by the element designating step. An extension data generation step for generating auxiliary line data for extending the auxiliary line specified to be extended to the center point in the step and center extension step to the center point, and a table And extending the auxiliary line data instructed to be extended to the center point in the auxiliary line designation step and the center extension step on the stored drawing data using the auxiliary line data generated in the extension data generating step. And a rewriting step of rewriting as angular dimension data with the auxiliary line data.

The second angle dimension creating method according to the present invention is
When entering the angle dimension on the drawing data, the selection step to select the center entry of the extension line of the angle dimension individually for each extension line, and the center point to indicate the center point of the angle on the drawing to which the dimension is to be entered Instructing step, measuring point instructing step for instructing the measuring point to be the dimension measurement target, dimension position instructing step for instructing the position of the dimension line on the drawing in which the dimension is to be entered, and drawing data stored and stored Based on the instructions of the center point designating step, the measurement point designating step, and the dimension position designating step, the designated dimension line position about the angular dimension between the designated measurement points around the designated center point And writing the angular dimension data by extending the dimension extension line selected in the selecting step to the center point so that the dimension line is located at It is characterized in that.

The first angular dimension creating apparatus according to the present invention is
In an angle dimension creating device having a function of editing angle dimension data already entered on drawing data, a command input means for inputting a command including a change command of an auxiliary line, and an operation related to the operation of the command input means The auxiliary line designating means for individually designating the auxiliary lines at both ends of the dimension line when changing the auxiliary line, and the auxiliary line designated by the auxiliary line designating means in relation to the operation of the auxiliary line designating means. Regarding the center extension designating means for designating the presence or absence of extension to the center point of the line, the element designating means for designating the angular dimension element to be changed, and the angular dimension element designated by the element designating means, Extension data generating means for generating auxiliary line data for extending the auxiliary line designated to be extended to the center point by the auxiliary line designating means and the center extension means, and displaying and recording Auxiliary line data instructed to be extended to the center point by the auxiliary line designating means and the center extending means on the drawing data being extended using the auxiliary line data generated by the extension data generating means. Rewriting means for rewriting as angular dimension data accompanied by line data is provided.

A second angular dimension creating apparatus according to the present invention is
In an angle dimension creating apparatus for writing an angle dimension on drawing data, a command input means for inputting a command including an angle dimension writing command capable of individually selecting the center entry of an auxiliary line of the angle dimension for each dimension extension line. , A center point designating means for designating a center point of an angle on a drawing to be dimensioned, a measurement point designating means for designating a measurement point to be a dimension measurement target, and a drawing on which a dimension is to be filled Dimensional position indicating means for indicating the position of the dimension line, and an instruction based on the instructions of the center point indicating means, the measurement point indicating means and the dimensional position indicating means on the displayed and stored drawing data. Regarding the angular dimension between the designated measurement points centered on the center point, the dimension auxiliary line selected by the command input means is placed so that the dimension line is located at the designated dimension line position. It is characterized by comprising a writing means for writing the data of the angular dimensions extend to a point.

[0010]

In the method and apparatus for creating an angular dimension of the present invention, when editing an angular dimension or creating an angular dimension, the presence or absence of extension to the center point is individually instructed for each dimension auxiliary line on both sides of the dimension line. By changing the extension line of the angle dimension or creating the angle dimension, the extension of the specified extension line to the center point is written on the drawing data that is displayed and stored. Because I did
Extending the extension lines to the center point of the extension lines at both ends of the angle extension line easily for each extension line individually and with a simple operation.
Moreover, the operation can be performed in an appropriate form, and the operator's operation load can be reduced.

[0011]

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 angle dimension creating device according to a first embodiment of the present invention. In the CAD system of the present embodiment, when editing a previously created angular dimension to create a required angular dimension, whether or not to extend the dimension auxiliary line of the angular dimension to the center point is set for each auxiliary line. However, by designating the angular dimension element to be changed, the dimension extension line of the required angular dimension element can be extended to the center point.

The CAD system shown in FIG. 1 comprises a CAD processing section 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
(Central processing unit) (not shown) is included, and CAD processing including angular dimension creation processing is executed. The input device 2 includes an operation input device such as a keyboard and a pointing device such as a mouse, and CAD operation input information by an operator and other external information necessary for CAD processing are CAD.
Input to the 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. Storage device 5
Is a disk device such as a hard disk device or the like, and operates in association with the CAD processing unit 1 to store 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 11, the command input unit 12, the auxiliary line designating unit 13, the center extension designating for executing the angle dimension editing process in the angle dimension creation according to the embodiment of the present invention. It includes a unit 14, an element designating unit 15, an extension data generating unit 16, a memory 17 and a rewriting control unit 18.

The display controller 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 causing the operator to input a command including a command for changing the dimension extension line of the angle dimension 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.

In the auxiliary line designating unit 13, at least the command for changing the dimension auxiliary line of the angular dimension is input to the command input unit 12.
Functioning when input by, for example, by interactive operation with the screen of the display 3, the auxiliary dimension line to be changed in the already created and filled angular dimension, that is, the auxiliary dimension line at both ends of the dimension line, When the angle dimension is created, the auxiliary line 1 corresponding to the measurement point previously specified and the auxiliary line 2 corresponding to the measurement point subsequently specified are processed by the operator. In this case, the dimension extension line to be changed is
For example, in order to clarify the reference of the angular dimension, it is a dimension auxiliary line that is determined to be extended to the center point. Therefore, the auxiliary line designating section 13 also controls the display control section 11 as necessary.

In the center extension designating section 14, at least the command for changing the dimension extension line of the angle dimension is input to the command input section 1.
The auxiliary line designating unit 1 functions when it is input by 2, and by an interactive operation with the screen of the display 3, for example.
Processing for allowing the operator to specify extension of the dimension extension line corresponding to the dimension extension line designated in 3 to the center point is performed. Therefore, the center extension designating unit 14 also controls the display control unit 11 as necessary.

The element designating section 15 includes the auxiliary line designating section 13
Also, the auxiliary line specifying unit 13 functions in a state before the auxiliary dimension line (the auxiliary line 1 or the auxiliary line 2) to be extended to the center point is specified by the center extension specifying unit 14 or in the specified state. Specifies the angular dimension element that should extend the dimension extension line corresponding to the one specified in. For this reason,
The element designating unit 15 also controls the display control unit 11 as necessary.

The extension data generating section 16 includes an element designating section 15
Dimension auxiliary line data for extending the dimension auxiliary line on the side corresponding to the designation of the auxiliary line designation unit 13 of the angle dimension element to the center point according to the designation of the center extension designation unit 14 is generated. The memory 17 stores information including CAD drawing data to be displayed by the display control unit 11. The storage contents of the memory 17 are transferred to the storage device 5 as needed. The memory 17 may share the memory used in the normal CAD processing in the CAD processing unit 1.

The rewriting control unit 18 is provided on the drawing data displayed on the display 3 and stored in the memory 17,
Of the angular dimensions designated by the element designating unit 15, the dimension supplementary line corresponding to the designation by the supplemental line designating unit 13 is rewritten to the dimension supplementary line data extended to the center point generated by the extension data generating unit 16.

Next, with reference to the flow chart shown in FIG. 2, a detailed description will be given of the operation particularly relating to the editing of the angular dimension in the CAD system having such a configuration. 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, the operator selects a change command for editing the angular dimension through the command input unit 12 of the CAD processing unit 1 (step S1).

Next, the element instructing section 15 of the CAD processing section 1 gives an instruction by the operator of the angle dimension element of which the dimension extension line is to be changed among the angle dimension elements already written on the drawing (step S2). .. The instruction of the change target element by the element 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 or the like using a cursor on the screen in response to the input.

Further, the auxiliary line designating section 1 of the CAD processing section 1
By 3, the dimension auxiliary line (one or both of the dimension auxiliary line 1 and the dimension auxiliary line 2 existing on both sides of the dimension line) to be changed is designated (step S3). Next, the center extension designation unit 14 of the CAD processing unit 1
Specifies that the extension line to be changed should be extended to the center point (step S4), the system is set to the extension change mode to the extension point center line of the angular dimension (( Step S5).

In the extension change mode of the angle dimension to the center point of the dimension extension line, step S3 and step of the dimension extension line of the angle dimension element to be changed designated by the element designating section 13 in step S2. The extension data generation unit 16 generates dimension extension line data for extending the dimension extension line corresponding to the extension to the center point in S4 to the center point (step S6). The rewriting control unit 18 determines the extension line corresponding to the extension line to the center point in steps S3 and S4 among the extension lines of the angular dimension element to be changed specified in step S2. The data is rewritten to the dimension extension line data extended to the center point by using the dimension extension line data generated in step S6 (step S7).

Further, it is judged whether or not the rewriting of the dimension extension line is completed (step S8), and the rewriting of the dimension extension line is not completed, that is, the dimension extension line is extended to the center point in the same manner as described above. If there is an angular dimension element to be rewritten, the process returns to step S2 and steps S2 to S are performed.
The process of 7 is repeated. When it is determined in step S8 that the rewriting of the dimension extension line is completed, that is, it is determined that there is no angular dimension element to be rewritten in the same manner as described above, the system ends the rewriting of the dimension extension line and proceeds to the next process. Transition.

Here, an example of a specific operation in this system will be described in detail. First, in the CAD system, with the angle dimension line as shown in FIG. 3 already created, select "Edit"-"Change" from the menu on the edit screen.
When is selected, the element designating section 15 is activated and a message is displayed on the screen to request the operator to designate the element to be changed. The operator operates a mouse or the like to designate an angle dimension element to be changed by a cursor or the like as shown in FIG.

Next, the "switch" menu is displayed, and for example, the "auxiliary line 1" switch indicating the dimension auxiliary line previously set at the time of creation is designated and the "center" indicating extension to the center point is designated. Make your changes. In order to select the menu and change the menu, the operator normally operates the cursor movement key of the input device 2 or the mouse while watching the edit screen of the display 3 under the control of the command input unit 12 to move the cursor on the menu. This is done by moving a bar or the like.

In this way, when the extension change mode to the center point of the dimension extension line of the angular dimension is set, the extension data generation unit 1
Dimension auxiliary line data for appropriately extending the predetermined dimensional auxiliary line to the center point is generated by 6, and the rewriting control unit 15 displays the angular dimension on the drawing data displayed on the display 3 and stored in the memory 17. The designated dimension element is rewritten into the angular dimension as shown in FIG. 5 having the dimension auxiliary line data extended to the center point corresponding to each designation. That is, in the case of FIG. 5, the first dimension auxiliary line corresponding to the “auxiliary line 1” of the angular dimension is extended to the center point.

If, for example, the "auxiliary line 2" switch indicating a dimension auxiliary line which was set later at the time of creation is specified in the "switch" menu and "center" indicating extension to the center point is specified, the change is executed. In this case, as shown in FIG. 6, the second auxiliary dimension line corresponding to the “auxiliary line 2” of the angular dimension is extended to the center point. Of course, in the "Switch" menu, for example, "Auxiliary line 1" switch and "Auxiliary line 2"
When both of the switches are changed by designating "center" indicating extension to the center point, both dimension extension lines on both sides of the angular dimension are extended to the center point. In this way, the extension of the angle dimension to the center point of the dimension extension line can be individually changed for each dimension extension line.

FIG. 7 shows a schematic structure of a CAD system incorporating an angle dimension creating apparatus according to the second embodiment of the present invention. In the CAD system of the present embodiment, when the angle dimension is entered on the drawing data, the extension to the center point is individually specified for each dimension extension line in advance, the angle dimension is created, and the angle dimension is measured. The center point, the first and second measurement points, and the position of the dimension line on the drawing are designated, and on the displayed and stored drawing data, the angular dimension between the measurement points is determined based on the designation. Data can be written by drawing the dimension extension line corresponding to the designation from the center point.

The CAD system shown in FIG. 7 is provided with an input device 2, a display 3, an output device 4, a storage device 5 and a CAD processing section 20 peculiar to this embodiment, which are almost the same as those in FIG. The CAD processing unit 20 includes a CPU (central processing unit) (not shown), and CAD including angle dimension creation processing having an individual extension function to the center point of the dimension extension line.
Execute the process. In this case, the CAD processing unit 20 executes, in addition to the configuration for executing the normal CAD processing, the angular dimension creating processing including the function of pulling the angular dimension from the center point of the auxiliary dimension line according to the embodiment of the present invention. Command input unit 21, center point designating unit 22, measurement point designating unit 23,
It includes a dimension position designating section 24 and a writing control section 25, and a display control section 11 and a memory 17 which are almost the same as the CAD processing section 1 shown in FIG.

The command input section 21 performs a process for allowing the operator to input a command including a command for creating an angle dimension by an interactive operation with the screen of the display 3, for example. The command input unit 21 also performs processing for arbitrarily selecting and validating the extension function of the angular dimension to the center point for each dimension extension line by an interactive operation with the screen of the display 3. Therefore, the command input unit 21 controls the display control unit 11 as needed.

The center point designating section 22 functions at least when a command for entering an angular dimension is input by the command input section 21, and, for example, interactively operates with the screen of the display 3 to enter an angular dimension on a drawing. At the time of performing, processing for causing the operator to instruct the center point of angle measurement is performed. Therefore, the center point instruction unit 22 also controls the display control unit 11 as necessary. The measurement point instruction unit 23 functions at least when a command for entering an angular dimension is input by the command input unit 21, and for example, when an angular dimension is entered on a drawing by an interactive operation with the screen of the display 3. , Processing for causing the operator to indicate the first and second measurement points. Therefore, the measurement point indicating section 2
3 also controls the display control unit 11 as necessary.

The dimension position designating section 24 functions at least when the angular dimension entry command is input by the command input section 21, and, for example, by interactive operation with the screen of the display 3, the angular dimension designating section 24 displays the angular dimension on the drawing. Processing is performed to allow the operator to instruct the position of the dimension line when writing. Therefore, the dimension position designating section 24 also controls the display control section 11 as necessary.

The writing control section 25 uses the center point designating section 22, the measurement point designating section 23, the dimension position designating section 24 and the position discriminating section 16 on the drawing data displayed on the display 3 and stored in the memory 17. The resulting center point,
Based on the information of the measurement points, the dimension positions, and the position analysis results, the angle dimension data between the measurement points designated by the measurement point designating section 23 is converted into the center point of each dimension extension line of the angular dimension by the command input section 21 According to the extension designation to
At least one dimension extension line is drawn from the center point and written.

Next, the operation relating to the creation of the angular dimension in the CAD system having such a configuration will be described in detail with reference to the flow chart shown in FIG. It is assumed that the processing shown in FIG. 8 is started as an interrupt processing by a command input during a normal drawing or editing operation in the CAD system.

First, the extension of the angular dimension to the center point of the dimension extension line by the operator via the command input section 21 of the CAD processing section 20 is performed for each dimension extension line, that is, the first measurement point corresponding to the first measurement point. Which of the dimension extension line (auxiliary line 1) and the second dimension extension line (auxiliary line 2) corresponding to the second measurement point is extended to the center point, both are extended, or both are extended. If the angle dimension creation command is selected (step S12) after it is specified whether or not to do so (step S11), the system is set to the angle dimension creation mode (step S13).

When the angle dimension creation mode is set, CA
The center point instructing section 22 of the D processing section 1 instructs the center point of the angle dimension measurement on the drawing to be measured and entered by the operator (step S14). The instruction of the center point by the center point instruction unit 22 is performed by an operator's input request via the screen of the display 3, and the operator accordingly performs an instruction operation using a cursor on the screen.

When the center point is designated in step S14,
The measurement point instruction section 23 of the CAD processing section 1 gives an instruction by the operator of the first and second measurement points on the drawing to measure and enter the angular dimension (steps S15 and S16). The instruction of the measurement point by the measurement point instruction unit 23 is performed by an operator's input request via the screen of the display 3, and the operator accordingly performing an instruction operation using a cursor on the screen.

Next, the dimension / position instructing section 24 instructs the operator of the position on the drawing where the dimension lines of the angular dimension corresponding to the first and second measurement points should be entered (step S17). Similarly to the case of the center point, the measurement point, and the like, the dimension position instructing unit 24 also requires the operator to input the dimension line position through the screen of the display 3, and the operator uses the cursor on the screen accordingly. It is performed by performing the specified operation.

When the position of the dimension line is designated in step S17, according to the designated dimension line position, the center point designated in step S14, and the first and second measurement points designated in steps S15 and S16, The writing control unit 25 writes the angular dimension data for the first and second measurement points on the drawing data displayed on the display 3 and stored in the memory 17 (step S1).
8). In step S18, the writing control unit 25
According to the designation of extension of the angular dimension of each dimension extension line to the center point of the dimension extension line in step S11, the dimension extension line corresponding to the designated side is extended to the center point designated in step S14, and the angle dimension data is obtained. Write. After writing the angular dimension, the system transitions 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"-
When "Execute" (annotation means entry of annotations other than drawing such as dimension line), a menu as shown in Fig. 10 is displayed. In this menu, "Dimension"-"Element" , Which means that
The menu such as 1 is displayed, and the prompt line at the bottom of the screen of the display 3, for example, "Please specify the type of dimension line" is displayed, so that the type of dimension line to be filled can be changed. Instructions are required from the operator. These menus are selected and changed by the operator operating the cursor movement keys or the mouse of the input device 2 while moving the cursor bar on the menu while looking at the edit screen of the display 3.

In the menu of FIG. 11, "angle"-"style" is selected, a menu as shown in FIG. 12 is displayed, and "auxiliary" showing the first auxiliary line corresponding to the measurement point designated earlier is displayed. Select one or both of "Line 1" and "Auxiliary line 2" indicating the second auxiliary line corresponding to the measurement point to be indicated later, and "Center" indicating the extension of the dimension auxiliary line to the center point. Then, the extensions to the center points of the first auxiliary line and the second auxiliary line are individually designated. For example, it is assumed that “auxiliary line 1” and “center” are selected and extension of the first auxiliary line to the center point is designated. When such designation is made, the original menu is returned as shown in FIG.

Further, in order to enter the angle dimension in the menu of FIG. 13, when "angle"-"execute" (meaning that the angle dimension is executed) is selected, the angle dimension creation mode is set, and the menu as shown in FIG. 14 is displayed. Is displayed. Normally, in this menu, when it is displayed, "automatic recognition"-
"Execution" is selected preferentially. In this state, as shown in FIG. 14, the prompt line "Please specify the center point" is displayed, and the operator is required to instruct the center point of the angular dimension measurement. When you operate the mouse etc. to specify the center point,
The next state is as shown in FIG.

In this state, as shown in FIG. 15, the prompt line "Please indicate the first point" is displayed, so that the operator can confirm the first angular dimension.
It is required to specify the measurement points of. Operate the mouse etc. first
When the measurement point of No. is indicated, the prompt line on the screen will display “Please indicate the second point” as shown in FIG. Is required.

When the second measurement point is designated by operating the mouse or the like, next, as shown in FIG. 17, the prompt line on the screen displays "Please indicate the position of the dimension line". Requires the operator to indicate the position on the drawing where the dimension line should be placed. When the dimension line position is designated by operating the mouse or the like, the dimension extension line corresponding to “auxiliary line 1” designated in FIG. 12, that is, the dimension extension line corresponding to the first measurement point designated in FIG. The angular dimension is extended to the center point specified in
It is written as shown in FIG.

Here, when the entry of the angle dimension is finished, "automatic recognition"-"stop" may be selected in this state as shown in FIG. As described above, according to the second embodiment, when the angular dimension is created, the angular dimension can be sequentially written in a form in which the dimension auxiliary line individually specified in advance is extended to the center point.

[0047]

As described above, according to the present invention, when editing an angle dimension or creating an angle dimension, it is individually instructed whether or not to extend to the center point for each dimension extension line on both sides of the dimension line. Then, change the extension line of the angle dimension or create the angle dimension, and extend the extension lines at both ends of the dimension line of the angle dimension to the center points of the extension lines individually for each extension line. Further, it is possible to provide an angle dimension creating method and apparatus that can be easily and easily performed in a proper form by a simple operation and can remarkably reduce the operation load of the operator.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a CAD system in which an angle dimension creating device according to a first embodiment of the present invention is incorporated.

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.

FIG. 7 is a block diagram showing a schematic configuration of a CAD system incorporating a dimension creating apparatus according to a second embodiment of the present invention.

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

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

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

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

FIG. 14 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG.

FIG. 15 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG.

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

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

FIG. 18 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 7.

[Explanation of symbols]

1, 20 ... CAD processing unit, 2 ... Input device, 3 ... Display, 4 ... Output device, 5 ... Storage device, 11 ... Display control unit, 12, 21 ... Command input unit, 13 ... Auxiliary line designating unit, 14 ... Center extension designation part, 15 ... Element designation part, 16 ...
Extension data generation unit, 17 ... Memory, 18 ... Rewrite control unit,
22 ... Center point designating part, 23 ... Measuring point designating part, 24 ... Dimension position designating part, 25 ... Writing control part.

Claims (4)

[Claims] 1. A step of selecting an auxiliary line to be changed in editing angular dimension data already written on the drawing data, and both ends of the dimension line when the auxiliary line is changed in relation to the selecting step. Auxiliary line specifying step for individually specifying the auxiliary line, and a center extension specifying step for specifying whether or not to extend the auxiliary line specified in the auxiliary line specifying step to the center point in relation to the auxiliary line specifying step. An element designating step for designating an angular dimension element to be changed, and an auxiliary line designated to be extended to the center point in the auxiliary line designating step and the center extension step for the angular dimension element designated by the element designating step. Extension data generation step for generating auxiliary line data for extending the auxiliary line finger to the center point, and the auxiliary line finger on the displayed and stored drawing data. Rewriting for rewriting the auxiliary line data instructed to extend to the center point in the constant step and the center extension step as angular dimension data with the auxiliary line data extended using the auxiliary line data generated in the extension data generating step. And a step of forming an angle dimension. 2. When entering an angular dimension on drawing data, a selection step of individually selecting the center entry of the auxiliary line of the angular dimension for each additional dimension line, and the center point of the angle on the drawing to which the dimension is to be entered Displaying and storing a center point instructing step, a measuring point instructing step instructing a measuring point to be a dimension measurement target, a dimension position instructing step instructing the position of a dimension line on a drawing in which dimensions are to be entered Based on the instructions of the center point designating step, the measurement point designating step and the dimension position designating step on the drawing data, the angular dimension between the designated measurement points centered on the designated center point is designated. Write so that the dimension line is located at the specified dimension line position and the dimension extension line selected in the selecting step is extended to the center point to write angular dimension data. Angular dimensioning method characterized by having a step. 3. An angle dimension creating device having a function of editing angle dimension data already written on drawing data, and command input means for inputting a command including an auxiliary line changing command, and the command input means. Related to the operation of the auxiliary line, auxiliary line designating means for individually designating auxiliary lines at both ends of the dimension line when changing the auxiliary line, and related to the operation of the auxiliary line designating means, the auxiliary line designating means Center extension designating means for designating the presence or absence of extension to the center point of the auxiliary line designated by, the element designating means for designating the angle dimension element to be changed, and the angle designated by the element designating means. With respect to the dimension element, extension data generation means for generating auxiliary line data for extending the auxiliary line designated to be extended to the center point by the auxiliary line designation means and the center extension means to the center point. Using the auxiliary line data generated by the extension data generating unit, the auxiliary line data instructed to extend to the center point by the auxiliary line designating unit and the center extending unit on the displayed and stored drawing data is used. And a rewriting unit for rewriting as angular dimension data with auxiliary line data extended. 4. An angle dimension creating apparatus for entering an angle dimension on drawing data, for inputting a command including an angle dimension entry command capable of individually selecting the center entry of an extension line of an angle dimension for each extension line. Command input means, a center point designating means for designating the center point of the angle on the drawing where the dimensions should be entered, a measurement point designating means for designating the measurement point to be the dimension measurement target, and the dimension Dimensional position designating means for designating the position of the dimension line on the drawing to be filled in, and for indicating the center point designating means, the measurement point designating means and the dimensional position designating means on the displayed and stored drawing data. On the basis of the angular dimension between the designated measurement points centered around the designated center point, the dimension selected so that the dimension line is located at the designated dimension line position and selected by the command input means. Angular dimensioning apparatus characterized by comprising a writing means for writing the data of the angular dimension by extending the auxiliary line to the center point.