JP3209555B2 - Angle dimension creation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a CAD (computer-aid)
relates to ed design) system, and an angle dimension work NaruSo location to write properly the angular dimension showing the angle values in the drawing data created by the particular CAD system.

[0002]

2. Description of the Related Art When a CAD system is used, when an angle dimension indicating an angle value is entered in drawing data,
In addition to simply drawing the extension line as necessary from the measurement point and writing the angle dimension, you also want to draw the extension line from the center point of the measurement and write the angle dimension to clarify the angle dimension Not a few. In particular, when the measurement point of the angular dimension is located outside the dimension line, it may be preferable to draw out the dimension auxiliary line from the center point of the angle rather than pull out from the measurement point as the entry of the angle dimension. .

In a conventional CAD system, when an angle dimension is created, the center point for measuring the angle, two measurement points indicating the angle to be measured, and the position of the dimension line are designated to specify the center. The angle between the two measurement points about the point is entered at the position of the indicated dimension line. Then, as described above, when it is desired to draw the dimension auxiliary line of the angle dimension from the center point of the angle and enter the angle dimension, once the angle dimension is entered, the dimension auxiliary line is set by editing and changing the graphic data. It was changed to draw from the point.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an angle dimension can be created by drawing a dimension auxiliary line from a center line by a simple operation, thereby significantly reducing the burden on an operator. and its object is to provide an angular dimension works NaruSo location that can be obtained easily is possible and appropriate paint output.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an angle dimension can be created by drawing a dimension auxiliary line from a center point by a simple operation, thereby significantly reducing the burden on an operator. It is an object of the present invention to provide an angle dimension creation method and apparatus capable of easily obtaining an appropriate drawing output result.

[0006]

[0007]

[0008]

[0009]

According to the present invention, there is provided an angle dimension creating apparatus for writing an angle dimension on drawing data in a command input means for inputting a command including an angle dimension writing command. A center point indicating means for indicating a center point of an angle on the drawing on which dimensions are to be written; a measuring point indicating means for indicating a measuring point to be measured for dimensions; and a drawing for writing dimensions. Dimension position designating means for designating the position of the upper dimension line, and one or more of the measurement points designated by the measurement point designating means are present outside the dimension line position designated by the dimension position designating means Measuring point position determining means for determining whether or not to perform the determination, and indicating the position on the displayed and stored drawing data based on the instructions of the center point specifying means, the measuring point specifying means and the dimension position specifying means. With respect to the angle dimension between the designated measurement points centered on the center point, the data of the angle dimension is written so that the dimension line is located at the designated dimension line position, and the measurement point position discriminating means determines the measurement point. When it is determined that one or more exists outside the position of the dimension line, a writing means is provided which draws out the dimension auxiliary line from the center point and writes it.

[0010]

In angular dimensions work NaruSo location of the present invention, when filling the angular dimension on the drawing data, to instruct the center point of the angle on the drawing, to direct the measuring point at an angle of the measurement object, By instructing the position of the dimension line, on the displayed and stored drawing data, the angle dimension between the measurement points centered on the center point is set so that the dimension line is located at the designated dimension line position and Since the auxiliary line is drawn from the center point and the data of the angle dimension is written, the angle dimension can be created by drawing the dimension auxiliary line from the center point by a simple operation, and the burden on the operator is significantly reduced. And an appropriate drawing output result can be easily obtained.

[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 in which an angle dimension creating device according to one embodiment of the present invention is incorporated. In the CAD system of the present embodiment, when writing the angular dimension on the drawing data, the center point for measuring the angular dimension, the first and second measuring points, the position of the dimension line on the drawing, and additional Indicate the measurement point, on the display and stored drawing data, based on the instruction,
When the position of the dimension line is inside at least one of the measurement points, the data of the angular dimension between the measurement points is written by drawing the dimension auxiliary line from the center point (when the position of the dimension line is outside the measurement point). In some cases, extension lines can be drawn from the element containing the measurement point).

The CAD system shown in FIG. 1 includes a CAD processing section 1, an input device 2, a display 3, an output device 4, and a storage device 5. CAD processing unit 1 includes a CPU
(Central processing unit) (not shown) and executes CAD processing including angular dimension creation processing. The input device 2
It includes an operation input device such as a keyboard and a pointing device such as a mouse, and inputs operation input information by an operator and other external information necessary for CAD processing to the CAD processing unit 1. The display 3 displays necessary information such as image information processed 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 image data 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 and operates in association with the CAD processing unit 1 to store data such as image information before, after, and during processing as needed. .

In this case, the CAD processing unit 1
In addition to the configuration for executing the D processing, the display control unit 11, the command input unit 12, and the center for executing the angle dimension creation processing including the function of drawing out the dimension auxiliary line from the center point according to the embodiment of the present invention. Point indicating unit 13, measurement point indicating unit 14,
It includes a dimension position indicating unit 15, a position determining unit 16, a memory 17, and a writing / rewriting control unit 18.

The display control unit 11 controls 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 an operator to input a command including a command for writing an angle dimension by interactive operation with the screen of the display 3, for example. The command input unit 12 also performs processing for arbitrarily selecting and validating one of the functions of serial entry and parallel entry of angle dimensions by interactive operation with the screen of the display 3. For this reason, the command input unit 12 controls the display control unit 11 as needed.

The center point designating section 13 functions at least when the command for entering the angle dimension is inputted by the command input section 12, and for example, by interactive operation with the screen of the display 3, the angle dimension is indicated on the drawing. When filling in,
A process for allowing the operator to specify the center point of the angle measurement is performed. Therefore, the center point instruction unit 13 also controls the display control unit 11 as needed. The measurement point indicating section 14 functions at least when the command for writing the angle dimension is input by the command input section 12, and is used, for example, when writing the angle dimension on the drawing by interactive operation with the screen of the display 3. Then, a process is performed to cause the operator to specify additional measurement points after the first and second measurement points and the third measurement point. Therefore, the measurement point indicating unit 14
Also controls the display control unit 11 as needed.

The dimension position instructing section 15 functions at least when the command for writing the angle dimension is input by the command input section 12, and for example, by interactively operating the screen of the display 3, the angle dimension is indicated on the drawing. A process is performed to allow the operator to indicate the position of the dimension line at the time of entry. The indication of the position of the dimension value by the dimension position indicating unit 15 may be performed only once, for example, before or after the indication of the first and second measurement points. For this reason, the dimension position indicating unit 15 also controls the display control unit 11 as needed.

The position discriminating section 16 is provided by the measuring point indicating section 14 based on information on the center point, the measuring point and the dimension position obtained by the center point indicating section 13, the measuring point indicating section 14 and the dimension position indicating section 15. At least one of the designated measurement points is outside (on the side farther from the center point than the dimension line) or inside (on the side closer to the center point than the dimension line) the dimension position designated by the dimension position indicator 15. It is analyzed and determined whether it exists.

The memory 17 stores information including CAD drawing data to be displayed by the display control unit 11. The contents stored in the memory 17 are transferred to the storage device 5 as needed. The memory 17 may share a memory used in normal CAD processing in the CAD processing unit 1.

The writing / rewriting control unit 18 includes a center point indicating unit 13, a measuring point indicating unit 14, a dimension position indicating unit 15, and a position determining unit on the drawing data displayed on the display 3 and stored in the memory 17. Based on the information of the center point, the measurement point, the dimension position, and the position analysis result obtained by step 16, the angle dimension data between the measurement points designated by the measurement point designation unit 14 is converted into at least one measurement point by a dimension line. If it is outside the position of, draw the extension line from the center point and write; otherwise (ie, if the position of the measurement point is inside the position of the dimension line), use the dimension from the element containing the measurement point. Pull out the auxiliary line and write. When an additional measurement point after the third measurement point is instructed by the measurement point instructing unit 14, the writing / rewriting control unit 18 performs a serial entry format as necessary so that the dimension auxiliary line data does not overlap. Or write sequentially in parallel entry format.

In the processing for preventing the overlap of the dimension auxiliary line data in the writing / rewriting control unit 18, first, the measuring point designating unit 14 designates the third and subsequent additional measuring points, and writes them in series. Or, when parallel entry is detected, if serial entry or parallel entry is detected, it will be duplicated by serial entry or parallel entry depending on whether serial entry or parallel entry is set. Determine the dimension extension line. Furthermore, in the case of the serial entry format, do not write the extension line for the common measurement point with the previous angle dimension line, and in the case of the parallel entry format, the extension line for the common measurement point is the outermost dimension. Only the extension line corresponding to the line is written. For this reason, the write / rewrite control unit 18 rewrites the data of the dimension auxiliary line which has already been written as necessary.

Next, the operation related to the creation of the angular dimensions in the CAD system having such a configuration will be described in detail with reference to the flowchart shown in FIG. The process shown in FIG. 2 is started as an interrupt process by a command input during normal drawing or editing operation in the CAD system.

First, the command input unit 1 of the CAD processing unit 1
2 after the operator instructs whether to use parallel entry or serial entry (step S2).
1) When an angle dimension creation command is selected (step S2), the system is set to an angle dimension creation mode of a parallel entry or serial entry format (step S3).

When the mode is set to the angle dimension creation mode of the parallel entry or the serial entry, the center point indicating section 1 of the CAD processing section 1 is set.
In step S4, the operator designates the center point of the angle dimension measurement on the drawing to be measured and filled in (step S4). The instruction of the center point by the center point instructing unit 13 is performed by an operator's input request via the screen of the display 3 and the operator performs an instruction operation using a cursor on the screen in response thereto.

When the center point is designated in step S4, C
The measurement point designating section 14 of the AD processing section 1 gives an instruction by the operator for the first and second measurement points on the drawing to be measured and filled in with the angular dimensions (step S5). The measurement point designated in step S5 is also selected from existing points on the drawing. The instruction of the measurement point by the measurement point instruction unit 14 is requested by an operator's input via the screen of the display 3 and the operator performs an instruction operation using a cursor on the screen in response thereto.

Next, the dimension position instructing section 15 gives an instruction by the operator of the position on the drawing where the dimension line of the angular dimension corresponding to the first and second measurement points is to be written (step S6). In the same manner as in the case of the center point, the measurement point, and the like, the dimension line position instruction by the dimension position instructing unit 15 requires an input by the operator through the screen of the display 3 and the operator uses the cursor on the screen accordingly. This is performed by performing a given instruction operation or the like.

When the position of the dimension line is designated in step S6, the position discriminator 16 functions to operate the dimension line position, the center point designated in step S4, and the first and second positions designated in step S3. The positional relationship of the measurement points is analyzed,
At least one of the first and second measurement points is outside the position of the dimension line (a side farther from the center point than the dimension line)
Or inside (on the side closer to the center point than the dimension line) (step S7).

When the positions of the dimension line and the measurement point are analyzed in step S7, the analysis result indicates the dimension line position designated in step S6, the center point designated in step S4, and the first point designated in step S3. In accordance with the second measurement point, the writing / rewriting control unit 18 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 S8). This step S8
Then, the write / rewrite control unit 18 determines the center point, the first and second
The angle dimension data between the first and second measurement points based on the information of the measurement points, the dimension line positions and the position analysis results, when at least one measurement point is outside the position of the dimension line Draws a dimension auxiliary line from the center point and writes it. Otherwise (ie, when the position of the measurement point is inside the position of the dimension line), draws a dimension auxiliary line from the measurement point and writes it. Further, the measurement point instructing section 14 gives an instruction by the operator of an additional measurement point to be measured to measure the angle dimension and to enter in parallel or in series (step S9).

When an additional measurement point is designated in step S9, the position discriminating section 16 determines that the measurement point is outside if at least one measurement point is located outside the position of the dimension line. Judge that it is outside the position of the dimension line,
Otherwise, the relationship between the new measurement point and the dimension line is analyzed based on the additional measurement point and the previously specified center point and dimension line position, and the new measurement point is It is determined whether it is outside or inside (step S10).

According to the analysis result in step S10, when an additional measurement point is designated in the parallel entry format, the writing / rewriting control unit 18 determines the additional measurement point based on the measurement point input by the measurement point designation unit 14 up to that point. Analyze the angular dimensions that will be written in parallel and find the overlapping dimension extension lines by adding measurement points.The overlapping dimension extension lines of the parallel dimension type are usually the outermost Only the extension line corresponding to the dimension line is enabled, other extension lines are deleted, and the data of the non-overlapping extension line and the dimension line and the angle dimension line of the parallel entry format consisting of the dimension value are displayed. 3 is written on the drawing data stored in the memory 17 (step S11).

Also in step S11, the writing / rewriting control unit 18 determines at least the angular dimension data corresponding to the new measurement point based on the information of the center point, the additional measurement point, the dimension line position, and the position analysis result. When one measurement point is outside the position of the dimension line, the extension line is drawn from the center point and written. Otherwise (ie, when the position of the measurement point is inside the position of the dimension line), Draw an auxiliary line from the measurement point and write it.

When an additional dimension line is written in step S11, it is determined whether or not continuous writing of angular dimensions is to be terminated (step S12). If continuous writing of angular dimensions is not to be completed, the flow returns to step S9. , Steps S9 to S1
Step 1 is repeated, and the additional dimension line of the angular dimension is written in the parallel entry format while sequentially performing the dimension auxiliary line overlapping prevention processing. If it is determined in step S12 that the continuous entry of angle dimensions is to be ended, the system proceeds to the next process.

When an additional measurement point is designated in the serial entry format, the write / rewrite control unit 18 proceeds to step S11.
Then, based on the measurement points input by the measurement point indicating unit 14 up to that time, the angular dimensions to be entered in series are analyzed, and the overlapping dimension auxiliary lines are obtained by adding the measurement points,
Only the first extension line is valid as the extension line of the series entry dimension line, ignoring the extension line generated later, and the serial entry format consisting of non-overlapping extension line and dimension line and dimension value Display angle data
And is written on the drawing data stored in the memory 17. In this case, only the subsequent dimension extension line may be valid, but in this case, it is necessary to turn on / off the display (and drawing) of the dimension extension line already written. It is more reasonable to make only the first extension line valid.

Also in this case, in step S11, the write /
The rewrite control unit 18 calculates the angular dimension data corresponding to the new measurement point based on the information of the center point, the additional measurement point, the dimension line position, and the position analysis result, so that at least one of the measurement points is smaller than the dimension line position. If it is outside, the extension line is drawn from the center point and written. Otherwise (ie, when the position of the measurement point is inside the position of the dimension line), the extension line is drawn from the element containing the measurement point. Pull out and write.

When additional angular dimensions are written in step S11, it is determined in step S12 whether or not continuous writing of angular dimensions is to be completed. If serial writing of angular dimensions is not to be ended, the flow returns to step S9. , Steps S9 to S
The processing of step 12 is repeated, and the additional dimension line is written in the serial entry format while sequentially performing the dimension auxiliary line overlapping prevention processing. If it is determined in step S12 that the continuous entry of angle dimensions is to be ended, the system proceeds to the next process.

Here, an example of a specific operation in this system will be described in detail. First, as shown in FIG.
In the menu on the editing screen of the AD system,
When "execute" (annotation means an entry of an annotation other than drawing such as a dimension line), a menu as shown in FIG. 4 is displayed. In this menu, "dimension"-"element" Is displayed, a menu as shown in FIG. 5 is further displayed, and a message "Please indicate the type of dimension line" is displayed on the prompt line at the bottom of the screen of the display 3, for example. This requires the operator to indicate the type of dimension line to be entered. The selection and change of these menus can be performed by the operator while viewing the editing screen on the display 3.
Is operated by operating the cursor movement key or the mouse to move the cursor bar on the menu.

First, in the case of parallel writing, the "Datum (meaning parallel)" toggle, which is a toggle switch for instructing parallel writing / serial writing of dimension lines, is turned on in the menu of FIG. Confirm that “■” is displayed before the display), and if “の” before the display of “Datum” is “□”,
If the "Date" toggle is off, turn on the "Date" toggle so that "、" is displayed before "Date". The toggle switch is turned on / off alternately by operating a mouse click button in a state where an operator operates a mouse or the like to indicate a desired toggle switch with a cursor by operating a mouse or the like.

Further, in the menu of FIG. 5, with the "Date" toggle turned on, the angle dimension is entered.
When "Angle"-"Execute" (meaning execution of an angle dimension) is selected, an angle dimension creation mode is set, and a menu as shown in FIG. 6 is displayed. In this menu, usually,
At the time of the display, “automatic recognition”-“execution” has already been preferentially selected.

In this state, as shown in FIG. 6, the indication "Please specify the center point" is displayed on the prompt line, thereby requesting the operator to specify the center point for measuring the angular dimension. . When the user designates the center point by operating the mouse or the like, the state shown in FIG.

In this state, as shown in FIG. 7, the indication "Please indicate the first point" is displayed on the prompt line, so that the operator is requested to specify the first measurement point of the angular dimension. Is done. When the first measurement point is designated by operating the mouse or the like, as shown in FIG. 8, a message “Please designate the second point” is displayed on the prompt line on the screen, thereby prompting the operator. Second of angular dimensions
Is required. These first and second measurement points are basic measurement points for parallel entry.

When the second measurement point is designated by operating the mouse or the like, the message "Please indicate the position of the dimension line" is displayed on the prompt line on the screen as shown in FIG. Thus, the operator is required to indicate the position on the drawing where the dimension line should be placed. When the position of the dimension line is designated by operating a mouse or the like, the positional relationship between the position of the dimension line and the measurement point is analyzed, and whether at least one of the first and second measurement points is outside the position of the dimension line is determined. It is discriminated whether it is inside or not, and when the angle dimension data between the first and second measurement points is at least one measurement point is outside the position of the dimension line, the dimension auxiliary line is shifted from the center point. The extension line is drawn and written from the element including the measurement point otherwise.

In this case, since the first and second measurement points are both outside the dimension line position, the angle between the first and second measurement points is shown on the drawing as shown in FIG. The dimension is written in such a way that the dimension extension line is drawn from the center point, and the prompt "Indicate the next point to be measured" is displayed on the prompt line to inform the operator of the additional measurement point. Is required.

When an additional measurement point is designated by operating a mouse or the like, an additional angle dimension for the additional measurement point is written in a parallel form on the drawing as shown in FIG. The display of “Please indicate the next point to be measured” is made, and the operator is further requested to specify an additional measurement point. If an additional measurement point is designated by operating a mouse or the like, an additional angle dimension is written on the drawing. 11, “automatic recognition” − “cancel” may be selected.

In FIG. 11 described above, when an additional angular dimension is written, a predetermined increment set in advance as an initial value with respect to the position of the previous dimension line (appropriately so that the dimension character and the dimension line do not overlap) Is set in the radial direction, the next dimension line is written, and the overlapping dimension extension line for the common measurement point corresponds to the outermost dimension line. By validating the dimension auxiliary line generated later and rewriting it with the dimension auxiliary line generated earlier, an angle dimension in a parallel entry format as shown in FIG. 11 is created without duplication of data of the dimension auxiliary line. .

Next, in the case of serial writing, in the menu of FIG. 5, a toggle switch "Datum (meaning parallel)" for instructing parallel writing / serial writing of a dimension line is turned off ("Date"). "Is displayed before""), and if""before" Datum "is displayed as" ■ ",
If the “Date” toggle is on, the “Date” toggle is turned off so that “□” is displayed before “Date”. In the menu of FIG. 5, in a state where the “Date” toggle is turned off, and “Angle” − “Execute” is selected to enter an angle dimension,
The mode becomes the angle dimension creation mode, and a menu as shown in FIG. 6 is also displayed.

Thereafter, in the case of the serial entry format, substantially the same operation as in the case of the parallel entry format described above is repeated. In the case of serial entry, when the additional angular dimension is written, the next angular dimension is written on the extension of the previous angular dimension, and the overlapping dimension auxiliary line for the intermediate measurement point is written first. Validates the extension lines generated at the time, and ignores the extension lines generated later (does not write)
By doing so, the serial entry of the angular dimensions as shown in FIG. 12 is performed without the overlap of the intermediate dimension auxiliary line data.

As described above, by repeatedly specifying the additional measurement points, the angular dimensions in a serial or parallel format for a large number of continuous measurement values are sequentially written without overlapping dimension auxiliary lines. When the position of the dimension line is inside at least one measurement point, the data of the angular dimension between the measurement points is automatically determined, and the dimension extension line is drawn from the center point and written. In the above description, the increment of the dimension position in the parallel entry format has been described as a fixed value set in advance by default, but the value of the increment may be input by the operator at the time of dimension creation. In this case, it is desirable to input the increment value immediately before or immediately after the indication of the first additional measurement point.

When at least one of the measurement points is located outside the dimension line position, as described above, not only the dimension auxiliary line is drawn from the center point, but also as shown in FIG.
Then, a dimension auxiliary line may be written so as to connect the center point and the measurement point. Also, in the above,
It is automatically determined whether at least one of the measurement points is outside the dimension line position.However, by specifying the drawing from the center in advance, the dimension auxiliary line must be automatically determined from the center point. The angle dimension may be written so as to be drawn out.

[0048]

As described above, according to the present invention, when an angle dimension is written on drawing data, the center point of the angle on the drawing is designated, and the measuring point to be measured is designated. Then, the position of the dimension line is designated, and on the displayed and stored drawing data, the angle dimension between the measurement points centered on the center point is set so that the dimension line is located at the designated dimension line position. In addition, by drawing the dimension auxiliary line from the center point and writing the angle dimension data, the angle dimension can be created by drawing the dimension auxiliary line from the center point by a simple operation, thereby significantly reducing the burden on the operator. It is possible to provide an angle dimension creation device capable of performing the above-mentioned operations and easily obtaining an appropriate drawing output result.

[Brief description of the drawings]

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

FIG. 2 is a flowchart illustrating a schematic operation of the CAD system of FIG. 1;

FIG. 3 is a view schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 1;

FIG. 4 is a view schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 1;

FIG. 5 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 1;

FIG. 6 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 1;

FIG. 7 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 1;

8 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 1;

9 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 1;

FIG. 10 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 1;

11 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 1;

12 is a diagram schematically showing a state of a display screen for explaining a schematic operation of the CAD system of FIG. 1;

FIG. 13 is a diagram schematically showing a state of a display screen for explaining a schematic operation of a CAD system in which an angle dimension creating device according to another embodiment of the present invention is incorporated.

[Explanation of symbols]

1. CAD processing unit 2. Input device 3. Display 3.
4 output device, 5 storage device, 11 display control unit, 12
... Command input unit, 13 ... Center point indicating unit, 14 ... Measurement point indicating unit, 15 ... Dimensional position indicating unit, 16 ... Position determining unit, 1
7 memory, 18 write / rewrite control unit.

────────────────────────────────────────────────── ─── Continuing from the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G06F 17/50 606 JICST file (JOIS)

Claims (2)

(57) [Claims] 1. An angle dimension creating apparatus for writing angle dimensions on drawing data, comprising: command input means for inputting a command including an angle dimension writing command; and a center point of an angle on the drawing to be dimensioned. Point indicating means for indicating the dimension, measurement point indicating means for specifying the measurement point to be measured, and dimension position indication for indicating the position of the dimension line on the drawing where the dimension is to be entered Means for determining whether or not one or more of the measurement points designated by the measurement point designation means exists outside the dimension line position designated by the dimension position designation means. On the displayed and stored drawing data, based on the instructions of the center point indicating means, the measuring point indicating means and the dimension position indicating means, between the indicated measuring points centered on the indicated center point. Corner For the degree dimension, the angle dimension data is written so that the dimension line is located at the designated dimension line position, and one or more of the measurement points are determined to be outside the dimension line position by the measurement point position determining means. And writing means for writing out the auxiliary dimension line from the center point when writing is performed. 2. The writing means includes means for writing dimension auxiliary line data connecting between the center point and the measurement point when one or more of the measurement points exist outside the dimension line position. The angle dimension creating device according to claim 1 , wherein