JP2001092865A - Method and device for making cad drawing, method and device for editing dimension, and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a CAD drawing making device which can remarkably reduce the remaking labor and time of a two-dimensional drawing at the time of working out a design by using three-dimensional CAD. SOLUTION: In a method for making CAD drawing, a CPU 8 fetches the graphic elements corresponding to dimensional elements fetched from original CAD drawing data (A) for copying dimensions from the data (A) and discriminates the combination of the dimensional elements with the graphic elements by collating the graphic elements collectively recorded on a correlation table with the geometric shape elements of CAD drawing data (B). Then the CPU 8 controls to copy the dimensional elements corresponding to the discriminated effective graphic elements to the data (B) and to eliminate the dimensional elements corresponding to discriminated ineffective graphic elements from the object to be copied.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD (Comp
The present invention relates to a method and apparatus for creating a drawing, a dimension editing method and an apparatus for editing a dimension element of a CAD drawing, and a storage medium storing a control program for controlling the CAD drawing apparatus and the dimension editing apparatus.

[0002]

2. Description of the Related Art Conventionally, CAD (Computer Aid) has been used as a design tool using a computer (computer).
ed Design) is widely used. Recent CA
The software technology of D has been developed from a two-dimensional CAD that handles drawing data to a three-dimensional CAD that uses a three-dimensional representation means such as solid modeling for a target geometric shape (for example, see Japanese Patent Application Laid-Open No. 205012 and JP-A-7-9659).

When three-dimensional CAD is used, three-dimensional C
It is common practice to project a three-dimensional geometric model created by AD onto a plan view, a front view, a side view, and the like, and create a drawing according to the conventional trigonometry.

[0004] Even if a three-dimensional model is represented by a solid model in a computer, the production of a product designed by CAD requires material removal, machining, hand finishing, measurement evaluation, and the like. For a manufacturing process in which a model cannot be used as it is, conventional drawings are required.

In the manufacturing department, the CAD data is transferred to NC (Nume
CAM (Computer Aided Manuf) for use in Ricoh machine tools
CAT (Computer Aided Te) aiming for automatic measurement and evaluation with a three-dimensional measuring device
Although a manufacturing method that does not rely on conventional drawings is being established by techniques such as sting), it is difficult to apply the method to all manufacturing processes.

[0006] The main reason for this is that it is technically difficult to use NC for all machining and measurement, and there are still parts that require manual machining and manual measurement. The introduction of CATs and CATs requires a great deal of capital investment, which makes it difficult to update all production facilities.

As described above, as a procedure for creating a two-dimensional drawing from a three-dimensional model, the three-dimensional model is projected in a desired direction by trigonometry, so that the boundary of the geometric shape of the three-dimensional model is Extraction is performed as two-dimensional data such as a front view and a side view. This projection process
It can be easily dealt with by performing geometric operation processing on three-dimensional data, and is already widely used as a general function of three-dimensional CAD.

[0008] However, the dimension display used for manufacturing the product represented by the drawing is generally added to the projected two-dimensional data by a drafting operation of a designer or a tracer. It is a creation procedure.

A method for automatically displaying dimensions used in defining a shape in three-dimensional modeling at the time of projecting the figure and a method for automatically creating dimension display data based on the coordinate values of a two-dimensional figure are also available. Dimensions created using these methods cannot be dimensioned exactly where they are needed, dimensions cannot be located easily on layouts, and geometric shapes such as dimensional tolerances However, there is a problem that attribute data other than the above cannot be handled, and automation of dimension creation has been put to practical use only in a very limited range.

[0010]

However, as described above, in the current procedure in which a designer or a tracer writes dimensions on a two-dimensional drawing that projects a three-dimensional model,
The three-dimensional model and the additionally entered dimensional data are handled as independent data, and the relationship cannot be maintained. That is, when a design change occurs, the three-dimensional C
When the shape of the three-dimensional model is corrected on the AD, a two-dimensional drawing is created again, and the dimensions are rewritten. Alternatively, a task of drawing and correcting a two-dimensional drawing occurs in parallel with correction of a model shape in three-dimensional CAD in response to a design change. In such a situation, it is necessary to correct both the 3D model and the 2D drawing redundantly,
A lot of waste occurs. Furthermore, since the three-dimensional model and the two-dimensional drawing are separately corrected, double management of design change information is required, and there is a risk that data may not be consistent in some cases. Can cause confusion.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art described above, and a first object of the present invention is to provide a design utilizing three-dimensional CAD which has already been performed at the time of design change. An object of the present invention is to provide a CAD drawing creation method and apparatus, and a dimension editing method and apparatus, which can greatly reduce the time and effort of rewriting a two-dimensional drawing by reusing created dimension data.

A second object of the present invention is to provide a storage medium storing a control program for controlling the CAD drawing apparatus and the dimension editing apparatus of the present invention.

[0013]

In order to achieve the first object, a CAD drawing creation method according to claim 1 is a method for creating a CAD (Computer Aided Design) of a dimension copy source.
gn) a dimension element extracting step of extracting a dimension element from the drawing data (A), a graphic element corresponding to the dimension element is extracted from the CAD drawing data (A) of the dimension copy source, and the dimension element and the graphic element are extracted. A dimension / graphic correspondence step for combining and recording the combinations in a correspondence table, and collation determination between the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded in the correspondence table by the dimension / graphic correspondence step. And the CAD of the dimension copy destination
A graphic collation determining step of determining whether the drawing data (B) is a valid graphic element or an invalid graphic element, and corresponding to the graphic element determined to be valid by the graphic collation determining step The dimension element to be copied is copied to the CAD drawing data (B) of the dimension copy destination, and the dimension element corresponding to the graphic element determined to be invalid by the graphic collation determination step is selected so as to be excluded from the copy target. And a possible dimension element copying step.

Further, in order to achieve the first object, a CAD drawing creation method according to claim 2 is a method for creating a CAD drawing according to claim 1.
In the AD drawing creation method, the figure collation determining step is a step in which the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded in the dimension / graphic correspondence step are figures having the same coordinate value. It is characterized in that it is determined whether or not there is.

Further, in order to achieve the first object, a CAD drawing creation method according to claim 3 is a method for creating a CAD drawing according to claim 1.
In the AD drawing creation method, the graphic collation determining step is performed when the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded in the dimension / graphic correspondence step do not have the same coordinate value. Is characterized by inspecting geometric shape elements of the CAD drawing data (B) of the dimension copy destination and determining a figure having the same shape attribute as a neighboring same type graphic element.

According to a fourth aspect of the present invention, there is provided a CAD drawing method according to the third aspect.
In the AD drawing creation method, the same shape attribute is
Figure shape characteristics (horizontal line, vertical line, same slope line,
It is characterized by a shape type such as a perfect circle, an arc, an arc center point, a line intersection, a line type of a figure (a line type such as a solid line, a broken line, a dash-dot line, a two-dot chain line), and a line width of a figure. .

According to a fifth aspect of the present invention, there is provided a CAD drawing method according to the third aspect.
In the method for creating an AD drawing, a dimension editing step of changing a corresponding dimension in accordance with the graphic element characteristic after shape replacement when the graphic matching determination step determines that the graphic element is a neighborhood similar graphic element.

In order to achieve the first object, the CAD drawing method according to claim 6 is a method for creating CAD drawings according to claim 5.
In the AD drawing creation method, the dimension editing step includes:
The corresponding dimension is automatically changed in accordance with the graphic element characteristics after the shape replacement.

Further, in order to achieve the first object, the method for creating a CAD drawing according to claim 7 is based on claim 5 or claim 6.
The CAD drawing creation method described above further comprises an information adding step of adding information indicating a design change unit to the dimension edited in the dimension editing step.

In order to achieve the first object, the CAD drawing apparatus according to the present invention is arranged such that a CAD drawing source for dimension copying is provided.
A dimension element extracting means for extracting a dimension element from D (Computer Aided Design) drawing data (A); a graphic element corresponding to the dimension element is extracted from the CAD drawing data (A) of the dimension copy source; Dimension / graphic correspondence means for collecting and recording combinations of graphic elements in a correspondence table, geometric elements of the CAD drawing data (B) of the dimension copy destination, and graphic elements recorded in the correspondence table by the dimension / graphic correspondence means And a graphic collation determining means for performing a collation determination with respect to the CAD drawing data (B) of the dimension copy destination and determining whether the graphic element is a valid graphic element or an invalid graphic element. The dimension element corresponding to the graphic element determined to be valid by the means is converted into the CAD drawing data (B) of the dimension copy destination.
A dimension element corresponding to a graphic element determined to be invalid by the graphic collation determining means and being selectable so as to be excluded from the object of the copying.

In order to achieve the first object, the CAD drawing apparatus according to the ninth aspect of the present invention provides the CAD drawing apparatus according to the eighth aspect.
In the AD drawing creating apparatus, the figure collation determining means includes:
It is characterized in that it is determined whether or not the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded by the dimension / graphic correspondence means are figures having the same coordinate value.

In order to achieve the first object, a CAD drawing apparatus according to claim 10 is the CAD drawing apparatus according to claim 8, wherein the figure collation judging means is configured to execute the CAD of the dimension copy destination. If the geometric shape element of the drawing data (B) and the graphic element recorded by the dimension / graphic correspondence means do not have the same coordinate value, the geometric shape element of the CAD drawing data (B) of the dimension copy destination is inspected. And a figure having the same shape attribute is determined as a neighboring same-type graphic element.

In order to achieve the first object, a CAD drawing apparatus according to claim 11 is the CAD drawing apparatus according to claim 10, wherein the same shape attribute is a shape characteristic of a figure ( Horizontal line segment, vertical line segment, same inclination line segment, perfect circle, arc, arc center point, line intersection point, etc.), figure line type (solid line, broken line, dash-dot line, two-dot chain line, etc.) , The line width of the figure.

In order to achieve the first object, the CAD drawing apparatus according to the twelfth aspect is characterized in that in the CAD drawing creating apparatus according to the tenth aspect, the figure collation judging means judges the same as neighboring similar figure elements. In this case, there is provided a dimension editing means for changing a corresponding dimension in accordance with the graphic element characteristics after the shape replacement.

In order to achieve the first object, a CAD drawing apparatus according to claim 13 is a CAD drawing apparatus according to claim 12, wherein the dimension editing means comprises:
The corresponding dimension is automatically changed in accordance with the graphic element characteristics after the shape replacement.

According to a fourth aspect of the present invention, there is provided a CAD drawing apparatus according to the twelfth or thirteenth aspect of the present invention, wherein the dimension edited by the dimension editing step is provided. And an information adding step of adding information indicating that the part is a design change part.

In order to achieve the first object, a dimension editing method according to a fifteenth aspect of the present invention is directed to a CAD for dimension copying.
(Computer Aided Design) A dimension element extracting step of extracting a dimension element from the drawing data (A), a graphic element corresponding to the dimension element is extracted from the CAD drawing data (A) of the dimension copy source, and the dimension element and the graphic are extracted. A dimension / graphic correspondence step for collecting and recording combinations of elements in a correspondence table;
The geometrical shape element of the AD drawing data (B) is compared with the graphic element recorded in the correspondence table in the dimension / graphic correspondence step, and is valid for the CAD drawing data (B) of the dimension copy destination. A graphic collation determining step of determining whether the graphic element is an invalid graphic element or not; and a dimension drawing corresponding to the graphic element determined to be valid by the graphic collation determining step is a CAD drawing of the dimension copy destination. A dimension element copying step of copying the data to the data (B) and selecting a dimension element corresponding to the graphic element determined to be invalid by the graphic collation determination step so as to be excluded from the copy target. Features.

In order to achieve the first object, a dimension editing method according to a sixteenth aspect is directed to the dimension editing method according to the fifteenth aspect, wherein the figure collation judging step comprises the step of: It is characterized in that it is determined whether or not the geometric shape element and the graphic element recorded in the dimension / graphic correspondence step in FIG. 3B are graphics having the same coordinate value. Also, in order to achieve the first object,
According to a seventeenth aspect of the present invention, in the dimension editing method according to the fifteenth aspect, the figure collation determination step is performed by a geometric shape element and a dimension / graphic correspondence step of the CAD drawing data (B) of the dimension copy destination. If the figure element does not have the same coordinate value, the geometric shape element of the CAD drawing data (B) of the dimension copy destination is inspected, and a figure having the same shape attribute is determined as a neighboring same type graphic element. It is characterized by the following.

In order to achieve the first object, a dimension editing method according to claim 18 is the dimension editing method according to claim 17, wherein the same shape attribute is a shape characteristic of a figure (horizontal line segment). , Plumb line, same slope line, perfect circle, arc, arc center point, line intersection, etc.), figure line type (solid line, broken line, dash-dot line, two-dot chain line, etc.), figure Characterized by a line width of

In order to achieve the first object, a dimension editing method according to a nineteenth aspect is characterized in that, in the dimension editing method according to the seventeenth aspect, when the figure is determined as the same kind of neighboring graphic element by the graphic matching determination step. Has a dimension editing step of changing a corresponding dimension in accordance with the graphic element characteristics after the shape replacement.

In order to achieve the first object, a dimensional editing method according to a twentieth aspect of the present invention is the dimensional editing method according to the nineteenth aspect, wherein the dimensional editing step includes: It is characterized in that it is automatically changed according to element characteristics.

Further, in order to achieve the first object, a dimension editing method according to claim 21 is directed to claim 19 or 20.
The described dimension editing method is characterized in that the dimension editing method further includes an information adding step of adding information indicating that the dimension is a design change unit to the dimension edited in the dimension editing step.

In order to achieve the first object, a dimensional editing apparatus according to a twenty-second aspect of the present invention provides a dimensional editing apparatus for a dimensional copy source CAD.
(Computer Aided Design) Dimensional element extracting means for extracting dimensional elements from drawing data (A), a graphic element corresponding to the dimensional element is fetched from CAD drawing data (A) of the dimension copy source, and the dimensional element and the graphic Dimension / graphic correspondence means for combining and recording combinations of elements in a correspondence table; geometric shape elements of the CAD drawing data (B) of the dimension copy destination; and graphic elements recorded in the correspondence table by the dimensional / graphic correspondence means. And a graphic collation determining means for determining whether the CAD drawing data (B) of the dimension copy destination is a valid graphic element or an invalid graphic element. The dimension element corresponding to the graphic element determined to be valid by the above is transferred to the CAD drawing data (B) of the dimension copy destination.
A dimension element corresponding to a graphic element determined to be invalid by the graphic collation determining means and being selectable so as to be excluded from the object of the copying.

In order to achieve the first object, a dimensional editing apparatus according to a twenty-third aspect of the present invention is the dimensional editing apparatus according to the twenty-second aspect, wherein the figure collating and judging means includes a CAD drawing data of the dimensional copy destination. It is characterized in that it is determined whether or not the geometric shape element (B) and the graphic element recorded by the dimension / graphic correspondence means are figures having the same coordinate value.

In order to achieve the first object, a dimensional editing apparatus according to a twenty-fourth aspect of the present invention is the dimensional editing apparatus according to the twenty-second aspect, wherein the figure collating and judging means includes a CAD drawing data of the dimensional copy destination. If the geometrical element of (B) and the graphic element recorded by the dimension / graphic correspondence means do not have the same coordinate value, the geometrical element of the CAD drawing data (B) of the dimension copy destination is inspected and It is characterized in that figures having the same shape attribute are determined as neighboring same-type graphic elements.

In order to achieve the first object, a dimension editing apparatus according to a twenty-fifth aspect of the present invention is the dimension editing apparatus according to the twenty-fourth aspect, wherein the same shape attribute is a shape characteristic of a figure (horizontal line segment). , Plumb line, same slope line, perfect circle, arc, arc center point, line intersection, etc.), figure line type (solid line, broken line, dash-dot line, two-dot chain line, etc.), figure Characterized by a line width of

In order to achieve the first object, the dimension editing apparatus according to the twenty-sixth aspect is characterized in that, in the dimension editing apparatus according to the twenty-fourth aspect, the figure collating and judging means determines the same as neighboring similar type graphic elements. Is characterized by having dimension editing means for changing the corresponding dimension in accordance with the graphic element characteristics after the shape replacement.

In order to achieve the first object, a dimensional editing apparatus according to a twenty-seventh aspect of the present invention is the dimensional editing apparatus according to the twenty-sixth aspect, wherein the dimensional editing means converts a corresponding dimension into a figure after shape replacement. It is characterized in that it is automatically changed according to element characteristics.

Further, in order to achieve the first object, the dimension editing apparatus according to the twenty-eighth aspect is characterized in that
The above-described dimension editing apparatus is characterized in that the dimension editing apparatus further includes an information adding unit that adds information indicating that the dimension is a design change unit to the dimension edited by the dimension editing unit.

Further, in order to achieve the second object, the storage medium according to claim 29 is provided with a CAD (Computer).
Aided Design) A storage medium that stores a control program for controlling a CAD drawing apparatus that creates a drawing, and is readable by a computer,
The control program includes: a dimension element extraction module for extracting a dimension element from the dimension drawing source CAD drawing data (A); and a graphic element corresponding to the dimension element being extracted from the dimension copying source CAD drawing data (A). A dimension / graphics correspondence module for collecting and recording combinations of dimension elements and the graphic elements in a correspondence table,
The geometric shape element of the AD drawing data (B) is compared with the graphic element recorded in the correspondence table by the dimension / graphic correspondence module, and is valid for the CAD drawing data (B) of the dimension copy destination. A graphic collation judging module for judging whether the graphic element is an invalid graphic element or not, and a dimension drawing corresponding to the graphic element judged to be valid by the graphic collation judging module, the CAD drawing of the dimension copy destination; A dimension element copying module which can be selected so as to be excluded from the duplication of the dimension element corresponding to the graphic element copied to the data (B) and determined to be invalid by the graphic collation determination module. Features.

Further, in order to achieve the second object, the storage medium according to claim 30 is the storage medium according to claim 29, wherein the figure collation determination module is configured to execute the CAD drawing data (B ) Geometric shape elements and dimensions
It is characterized in that it is determined whether or not the graphic element recorded by the graphic correspondence module is a graphic having the same coordinate value.

In order to achieve the second object, the storage medium according to claim 31 is the storage medium according to claim 29, wherein the figure collation judging module is configured to execute the CAD drawing data (B ) Geometric shape elements and dimensions
If the graphic element recorded by the graphic correspondence module does not have the same coordinate value, the CAD of the dimension copy destination is used.
It is characterized in that the geometric shape elements of the drawing data (B) are inspected, and figures having the same shape attribute are determined as neighboring same type graphic elements.

In order to achieve the second object, the storage medium according to claim 32 is the storage medium according to claim 31, wherein the same shape attribute is the shape characteristic of a figure (horizontal line segment, vertical Line segment, same inclination line segment, perfect circle, arc, arc center point, line intersection point, etc.), figure line type (solid line, broken line, dash-dot line, two-dot chain line, etc.), figure line It is characterized by being a width.

In order to achieve the second object, the storage medium according to claim 33 is the storage medium according to claim 31, wherein the control program determines the same type of neighboring graphic element by the graphic matching determination module. In this case, there is provided a dimension editing module for changing the corresponding dimension in accordance with the graphic element characteristics after the shape replacement.

In order to achieve the second object, the storage medium according to claim 34 is the storage medium according to claim 33, wherein the dimension editing module is configured to change a corresponding dimension to a graphic element characteristic after shape replacement. It is characterized in that it is automatically changed in accordance with.

In order to achieve the second object, the storage medium according to claim 35 is the storage medium according to claim 33 or 34, wherein the control program is configured to reduce the size edited by the size editing module. On the other hand, it has an information addition module for adding information indicating that it is a design change unit.

Further, in order to achieve the second object, the storage medium according to claim 36 is provided with a CAD (Computer).
Aided Design) A storage medium that stores a control program for controlling a dimension editing device that edits a dimension element of a drawing and is readable by a computer, wherein the control program is a CAD drawing data (A) of a dimension copy source. A dimension element extraction module for extracting dimension elements from a drawing element; a graphic element corresponding to the dimension element is extracted from the CAD drawing data (A) of the dimension copy source; and a combination of the dimension element and the graphic element is collectively recorded in a correspondence table. Dimensions / graphics correspondence module, the geometrical shape element of the CAD drawing data (B) of the dimension
The graphic correspondence module performs collation determination with the graphic element recorded in the correspondence table, and determines whether the CAD drawing data (B) of the dimension copy destination is a valid graphic element or an invalid graphic element. A graphic collation judging module to be judged, and a dimension element corresponding to the graphic element judged to be valid by the graphic collation judging module are copied to the CAD drawing data (B) of the dimension copy destination, and the graphic collation judging module A dimension element corresponding to a graphic element determined to be invalid is provided with a dimension element copy module that can be selected so as to be excluded from the copy target.

In order to achieve the second object, the storage medium according to claim 37 is the storage medium according to claim 36, wherein the figure collation determination module is configured to execute the CAD drawing data (B ) Geometric shape elements and dimensions
It is characterized in that it is determined whether or not the graphic element recorded by the graphic correspondence module is a graphic having the same coordinate value.

In order to achieve the second object, the storage medium according to claim 38 is the storage medium according to claim 36, wherein the figure collation judging module is configured to execute the CAD drawing data (B ) Geometric shape elements and dimensions
If the graphic element recorded by the graphic correspondence module does not have the same coordinate value, the CAD of the dimension copy destination is used.
It is characterized in that the geometric shape elements of the drawing data (B) are inspected, and figures having the same shape attribute are determined as neighboring same type graphic elements.

In order to achieve the second object, the storage medium according to claim 39 is the storage medium according to claim 38, wherein the same shape attribute is a shape characteristic of a figure (horizontal line segment, vertical Line segment, same inclination line segment, perfect circle, arc, arc center point, line intersection point, etc.), figure line type (solid line, broken line, dash-dot line, two-dot chain line, etc.), figure line It is characterized by being a width.

In order to achieve the second object, the storage medium according to claim 40 is the storage medium according to claim 38, wherein the control program determines the same type of neighboring graphic element by the graphic matching determination module. In this case, there is provided a dimension editing module for changing the corresponding dimension in accordance with the graphic element characteristics after the shape replacement.

In order to achieve the second object, the storage medium according to claim 41 is the storage medium according to claim 40, wherein the dimension editing module sets the corresponding dimension to a graphic element characteristic after shape replacement. It is characterized in that it is automatically changed in accordance with.

In order to achieve the second object, the storage medium according to claim 42 is the storage medium according to claim 40 or 41, wherein the control program is configured to reduce the size edited by the size editing module. On the other hand, it has an information addition module for adding information indicating that it is a design change unit.

In order to achieve the second object, a storage medium according to claim 43 is the storage medium according to claims 29 to 41 or 42, wherein the storage medium is a floppy disk. I do.

In order to achieve the second object, a storage medium according to claim 44 is the storage medium according to claims 29 to 41 or 42, wherein the storage medium is a hard disk. .

In order to achieve the second object, a storage medium according to claim 45 is the storage medium according to claims 29 to 41 or 42, wherein the storage medium is an optical disk. .

In order to achieve the second object, the storage medium according to claim 46 is the storage medium according to claims 29 to 41 or 42, wherein the storage medium is a magneto-optical disk. And

In order to achieve the second object, the storage medium according to claim 47 is the storage medium according to claims 29 to 41 or 42, wherein the storage medium is a CD-ROM.
ROM (Compact Disk Read Onl)
y Memory).

In order to achieve the second object, the storage medium according to claim 48 is the storage medium according to claims 29 to 41 or 42, wherein the storage medium is a CD-ROM.
R (Compact Disk Recordable)
e).

In order to achieve the second object, the storage medium according to claim 49 is the storage medium according to claims 29 to 41 or 42, wherein the storage medium is a magnetic tape. I do.

In order to achieve the second object, the storage medium according to claim 50 is the storage medium according to claims 29 to 41 or 42, wherein the storage medium is a nonvolatile memory card. Features.

In order to achieve the second object, the storage medium according to claim 51 is the storage medium according to claims 29 to 41 or 42, wherein the storage medium is a ROM.
(Read Only Memory) chip.

[0063]

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

FIG. 1 is a block diagram showing a configuration of a CAD drawing creating apparatus according to the present embodiment. In the figure,
Reference numeral 1 denotes a CAD drawing creating apparatus having a dimension editing function, which is connected via a communication line 2 to a not-shown three-dimensional CAD apparatus or the like.

The CAD drawing apparatus 1 includes an input unit 3 composed of a keyboard and a mouse for performing a predetermined input operation, a ROM (read only memory) 4 storing a predetermined control program such as a dimension editing program described later, and the like. , A RAM (random access memory) 5 used as a work area of a CPU 8 described later, a storage unit 6 such as an HDD (hard disk drive), and a two-dimensional drawing and the like are displayed. CRT (cathode ray tube)
And a CPU (Central Processing Unit) 8 that performs various calculations and controls the entire apparatus.
These components and the communication line 2 are electrically connected to each other via a system bus 9. The storage unit 6 stores C
A data file 6a for storing the two-dimensional drawing data created by the AD drawing creating apparatus 1, and a specification file 6 in which predetermined parameters are registered, such as when performing graphic collation determination described later.
b.

FIG. 2 is a flowchart showing the flow of a design operation when the CAD drawing creating apparatus 1 according to the present embodiment and its dimension editing method are used. The CAD drawing according to the present embodiment will be described with reference to FIG. The role of the drawing creation device 1 will be described.

In FIG. 2, a block indicated by 21 is a block for creating a two-dimensional drawing based on the three-dimensional product model (initial model), and a block indicated by 26 in FIG. It is a creation block. Further, the CAD drawing creating apparatus 1 and the dimension editing method according to the present embodiment are steps indicated by S30 in FIG. 2, and are responsible for dimension editing at the time of design change.

The flowchart of FIG. 2 will be described in detail.

First, a two-dimensional drawing creation block based on the first three-dimensional product model (initial model) will be described.

First, in step S22, a first three-dimensional product model (initial model) is created.

FIG. 3 is a perspective view showing an example of a first three-dimensional product model. In FIG. 3, reference numeral 301 denotes a first three-dimensional product model.
1 is created by a three-dimensional CAD device (not shown) by means of a three-dimensional representation such as a solid model.

Next, the process proceeds to step S23, where the first three-dimensional product model 3 created in step S22 is set.
01 is converted into first two-dimensional drawing data A (geometric shape) using the three-dimensional CAD projection function,
Create a first two-dimensional drawing.

FIG. 4 is a diagram showing an example of a first two-dimensional drawing. In FIG. 4, reference numeral 401 denotes a first two-dimensional drawing, and the first two-dimensional drawing 401 is a first three-dimensional product. Consists of a plan view 401a and a side view 401b of the model 301,
Each of these figures 401a and 401b is constituted by line element information such as line segments and arcs.

Next, proceeding to step S24, the designer or tracer enters dimensions (CAD dimension entry function) in the first two-dimensional drawing 401 using the two-dimensional CAD function, and in the next step S25. The data is converted into the second two-dimensional drawing data B (geometric shape + dimension added) to complete the second two-dimensional drawing.

FIG. 5 is a diagram showing an example of a second two-dimensional drawing after dimensions are entered. In FIG. 5, reference numeral 501 denotes a second two-dimensional drawing. It consists of a filled-in plan view 501a and a side view 501b.

The three-dimensional CAD device and the two-dimensional CAD device for drawing shown here can be used regardless of the model as long as they have the above-mentioned functions.

Next, a description will be given of a two-dimensional drawing creation block when the design of the design model is changed.

First, in step S27, a design change (model shape change) is made to the first three-dimensional product model (initial model) 301 using the three-dimensional CAD function, and in the next step S28, a second tertiary product model (initial model) is changed. Create the original product model (design change model).

FIG. 6 is a diagram showing an example of the second three-dimensional product model after the design change. In FIG. 6, reference numeral 601 denotes a second three-dimensional product model, and the hatched portion indicates the design change (shape change). Indicates the site where the image was taken.

Next, the operation proceeds to step S29, where the second three-dimensional product model 6 created in step S28 is created.
01 is converted into third two-dimensional drawing data (geometric shape) C whose design has been changed to create a third two-dimensional drawing.

FIG. 7 shows a third example of only the geometric shape after the design change.
FIG. 3 is a diagram showing an example of a two-dimensional drawing of FIG.
Reference numeral 01 denotes a third two-dimensional drawing, in which a plan view 701a and a side view 7
01b, and a hatched portion in the plan view 701a indicates a part whose design has been changed (changed in shape).

Incidentally, the oblique lines and arrows in FIG. 6 and FIG.
It is added for explanation of the present invention and does not exist on actual CAD data.

The above design work can be executed using the conventional CAD technology.

In this state, a second two-dimensional drawing 501 with dimensions added to the initial first three-dimensional product model 301
Based on the and the third two-dimensional drawing 701 whose shape has been changed by the design change, the CAD drawing creation apparatus 1 having the dimension editing function according to the present embodiment edits the required dimensions after the design change in step S30. According to the CAD of the present invention, in the next step S31, the dimensions are automatically added to the third two-dimensional drawing 701 after the design change to create the fourth two-dimensional drawing data (geometric shape + dimension addition) D. This is the main function of the drawing creation method and apparatus and the dimension editing method and apparatus.

FIG. 8 is a diagram showing an example of a fourth two-dimensional drawing. In FIG. 8, reference numeral 801 denotes a fourth two-dimensional drawing.
It is composed of a plan view 801a in which dimensions and necessary items (annotations, comments, etc.) are entered, and a side view 801b. In FIG. 8, the dimension of the portion where the design has not been changed is stored in the state of the second two-dimensional drawing 501 shown in FIG. Regarding the parts that have undergone the design change, for those that are geometrically related to the state before the design change, the dimension data is edited based on the dimension format before the design change and copied to the drawing data. You.

FIG. 9 is a flowchart showing the flow of the operation of the dimension editing apparatus according to the present embodiment. This program is executed by the CPU 8 of FIG.

In FIG. 9, first, in step S901, a process of designating a target drawing is performed. Here, the dimension copy source CAD drawing A and the dimension copy destination CAD drawing B are designated according to the input screen. Further, a comment to be written as a comment on the dimension for the shape-changed portion can be designated as a character string.

FIG. 10 is a diagram showing an example of an input screen displayed on the display unit 7 of FIG. 1. A desired value can be input by the input unit 3 such as a keyboard or a mouse of FIG. By specifying execution after completion of the input, the dimension editing process is started.

Returning to FIG. 9, in step S902, dimension element extraction processing, that is, dimension information is extracted from the dimension copy source CAD drawing A specified in step S901. This dimension information includes dimension type information such as horizontal dimension, vertical dimension, radius dimension, and diameter dimension for each dimension, and dimension display including coordinate values of dimension lead lines, coordinate values for dimension entry, tolerance display, etc. Information such as a character string and a character size is extracted and temporarily stored in a dimension information table.

FIG. 11 is a diagram showing an example of creating the dimension information table. This is an example of extracting vertical dimensions, but information necessary for dimension creation can be similarly extracted for other dimensions.

Returning to FIG. 9 again, in step S903, the dimension / graphic correspondence processing, that is, the graphic element corresponding to the dimension is determined based on the dimension information table created in step S902. This determination method is determined by comparing the dimension leader line with the coordinate data of the graphic element. The judgment is that the distance between the coordinate values is the specification file 6 in FIG.
The determination is made based on whether the value is within an allowable range (allowable error ε) registered in advance in b. Further, even if a plurality of graphic elements are within the allowable range, a target graphic element can be selected based on the dimension type information.

FIG. 12 shows an example in which a graphic element is determined with respect to a dimension lead line 12b having a vertical dimension 12a. A graphic element within the range of the allowable error ε from the end point of the dimension leader line 12b is extracted. In this case, the horizontal line 12c and the arc 12
d is retrieved. However, since the dimension in this case is the vertical dimension 12a, it is easily determined that the horizontal line 12c is appropriate as the target graphic.

The combination of the dimension and the graphic element is determined by the above procedure, and is sequentially stored as the dimension / graphic combination table data.

Returning to FIG. 9, in step S904, a figure collation determining process is performed. In this graphic collation determination processing, graphic element information of the CAD drawing B of the dimension copy destination is extracted, and the coordinate data of the graphic is compared with the graphic shape data stored as the dimension / graphic combination table data. Here, if there is a graphic element having exactly the same coordinate value, the dimension copy source CAD drawing A and the dimension copy destination CAD drawing B can be determined to have the same shape with respect to this shape part. Becomes If the coordinates are not exactly the same, a range of a distance parameter representing an approximate figure search range registered in advance in the specification file 6b of FIG. 1 is searched to determine whether there is a similar figure.

As similar figures, circular arcs having the same center coordinates but different diameters, circles having the same radius but having a center within a certain distance, and different lengths but having the same inclination or determined by a combination of line segments, etc. can do.

A dimension having a similar figure is a dimension to be edited. Note that a dimension having no corresponding graphic element is handled as a deletion target.

FIG. 13 is a diagram showing an example of searching for a similar figure. In the same figure, when the original CAD data of the chain line portion is compared with the horizontal line segment 13 corresponding to the dimension 13a, there is no matching graphic element, but the parallel line segment 13c in the vicinity satisfies the similar condition. This shape information is registered as a figure.

Returning to FIG. 9, the dimension element copying process is performed in step S905. In this dimension element copy processing, the dimensions of the dimension copy source CAD drawing A are copied to the dimension copy destination CAD drawing B based on the determination result of the graphic collation determination processing in step S904. That is, as the copy target size, the size information stored as the size / graphic combination table data is copied as it is. For the dimensions to be edited, based on the dimensions / graphics combination table data, the shape difference between the figure in the dimension copy source CAD drawing A and the similar figure in the dimension copy destination CAD drawing B is extracted, and the dimension value, the position of the leader line, etc. are changed. The copy is copied as edited data obtained by recalculating the copy. At the same time, the comment / comment specified in step S901 is additionally entered for the dimensions to be edited.

The size to be deleted is not copied. Therefore, extra dimensions are not copied in the dimension copy destination CAD drawing B.

A specific example is shown in the dimension copy source CAD drawing A
C1 and dimension copy destination CAD drawing B in FIG.
In FIG. 5 which is an example of FIG. 5, c1 is a dimension copied as it is, e1 is a dimension edited and copied, and d1 is a dimension not copied.

[0101]

As described above in detail, according to the CAD drawing creation method and apparatus and the dimension editing method and apparatus of the present invention, for example, the dimension copying source CAD drawing A to the dimension copying destination C
Only the dimensions available in the AD drawing B can be selectively copied. In addition, by rewriting the dimensions of the similar figure, rewriting of the dimensions can be minimized.

Therefore, it is possible to greatly reduce the time and effort required for reworking a two-dimensional drawing when the product shape is changed due to a design change. In particular, in the case of using a three-dimensional CAD, it is easy to correct the dimensions of the two-dimensional drawing generated after the correction of the three-dimensional product model, so that consistency between the three-dimensional product model and the two-dimensional drawing can be easily obtained. For this reason, the centralized management of information can be easily performed.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a CAD drawing creation apparatus according to a first embodiment of the present invention.

FIG. 2 is a flowchart illustrating a design procedure of the CAD drawing apparatus according to the first embodiment of the present invention.

FIG. 3 is a diagram illustrating an example of a three-dimensional product model corresponding to a copy source CAD drawing in the CAD drawing creating apparatus according to the first embodiment of the present invention.

FIG. 4 is a diagram showing an example of a two-dimensional drawing before dimensioning by projecting a contour figure of a three-dimensional product model in the CAD drawing creating apparatus according to the first embodiment of the present invention.

FIG. 5 is a diagram showing an example of a copy source CAD drawing in the CAD drawing creating apparatus according to the first embodiment of the present invention.

FIG. 6 is a diagram showing an example of a three-dimensional product model after a design change in the CAD drawing creating apparatus according to the first embodiment of the present invention.

FIG. 7 is a diagram showing an example of a dimension copy destination CAD drawing before a dimension editing process in the CAD drawing creating apparatus according to the first embodiment of the present invention.

FIG. 8 is a diagram illustrating an example of a dimension copy destination CAD drawing after a dimension editing process in the CAD drawing creation apparatus according to the first embodiment of the present invention.

FIG. 9 is a flowchart illustrating a flow of a dimension editing processing operation in the CAD drawing apparatus according to the first embodiment of the present invention.

FIG. 10 is a diagram showing an example of a screen display for designating a target drawing in the CAD drawing creating apparatus according to the first embodiment of the present invention.

FIG. 11 is a diagram showing an example of a process of extracting dimension information in the CAD drawing device according to the first embodiment of the present invention.

FIG. 12 is a diagram showing an example of collation determination of dimensions and graphic elements in the CAD drawing apparatus according to the first embodiment of the present invention.

FIG. 13 is a diagram showing an example of a similar figure search in the CAD drawing apparatus according to the first embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 CAD drawing device 2 Communication line 3 Input device 4 ROM (read only memory) 5 RAM (random access memory) 6 Storage unit 6a Data file 6b Specifications file 7 Display unit 8 CPU (Central processing unit) 9 System bus

Claims (51)

[Claims] 1. A CAD (Computer) of a dimension copy source
Aided Design) A dimension element extracting step of extracting a dimension element from the drawing data (A), a graphic element corresponding to the dimension element is extracted from the CAD drawing data (A) of the dimension copy source, and the dimension element and the graphic element are extracted. And a dimension / graphic correspondence step of combining and recording the combinations in a correspondence table, and comparing the geometrical shape element of the CAD drawing data (B) of the dimension copy destination with the graphic element recorded in the correspondence table by the dimension / graphic correspondence step. A graphic collation determining step of making a determination and determining whether the CAD drawing data (B) of the dimension copy destination is a valid graphic element or an invalid graphic element; Is copied to the CAD drawing data (B) of the dimension copy destination, and the dimension element corresponding to the graphic element determined to be A dimension element copying step of selecting a dimension element corresponding to a graphic element determined to be invalid by the shape collation determination step so as to be excluded from the duplication target. 2. The graphic collation judging step, wherein the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded in the dimension / graphic correspondence step are figures having the same coordinate value. 2. The CAD drawing creation method according to claim 1, wherein it is determined whether or not the CAD drawing is created. 3. The graphic collation determining step is performed when the geometrical shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded in the dimension / graphic correspondence step do not have the same coordinate value. , CAD of the dimension copy destination
2. The CAD drawing creation method according to claim 1, wherein a geometric shape element of the drawing data (B) is inspected, and a graphic having the same shape attribute is determined as a neighboring same type graphic element. 4. The same shape attribute includes shape characteristics of a figure (horizontal line, vertical line, same inclination line, true circle, circular arc,
The method according to claim 3, wherein the shape type is a shape type such as an arc center point or a line segment intersection, a line type of a graphic (a line type such as a solid line, a broken line, a dash-dot line, a two-dot chain line), and a line width of the graphic. CAD drawing creation method. 5. The method according to claim 1, further comprising a dimension editing step of changing a corresponding dimension in accordance with the characteristic of the graphic element after the shape replacement when the graphic element is determined as the same kind of neighboring graphic element in the graphic collation determining step. CAD described in 3
Drawing creation method. 6. The CAD drawing creation method according to claim 5, wherein in the dimension editing step, a corresponding dimension is automatically changed in accordance with a graphic element characteristic after shape replacement. 7. An information adding step of adding information indicating that the dimension is a design change part to the dimension edited in the dimension editing step.
Or the CAD drawing creation method according to 6. 8. A CAD (Computer) of a dimension copy source
Aided Design) Dimensional element extracting means for extracting a dimensional element from the drawing data (A), a graphic element corresponding to the dimensional element is fetched from the CAD drawing data (A) of the dimension copy source, and the dimensional element and the graphic element are extracted. Dimension / graphic correspondence means for combining and recording the combinations of the figures in a correspondence table, and collating the geometrical elements of the CAD drawing data (B) of the dimension copy destination with the graphic elements recorded in the correspondence table by the dimensional / graphic correspondence means. A graphic collation determining means for making a determination and determining whether the CAD drawing data (B) of the dimension copy destination is a valid graphic element or an invalid graphic element; The dimension element corresponding to the graphic element determined to be is copied to the CAD drawing data (B) of the dimension copy destination, and And a dimension element copying unit that can select a dimension element corresponding to the graphic element determined to be invalid from the copy target. 9. The graphic collation judging means, wherein the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded by the dimension / graphic correspondence means are figures having the same coordinate value. 9. The CAD drawing creating apparatus according to claim 8, wherein it is determined whether or not the CAD drawing is performed. 10. The figure collation judging means includes a geometric shape element and a dimension / dimension of the CAD drawing data (B) of the dimension copy destination.
If the graphic element recorded by the graphic correspondence means does not have the same coordinate value, the geometrical shape element of the CAD drawing data (B) of the dimension copy destination is inspected, and a graphic having the same shape attribute is determined to be the same type in the vicinity. 9. The CAD drawing creation apparatus according to claim 8, wherein the determination is made as a graphic element. 11. The same shape attribute includes shape characteristics of a figure (shape types such as a horizontal line segment, a vertical line segment, a same slope line segment, a perfect circle, an arc, a center point of a circular arc, a line segment intersection, and the like). 11. The CAD drawing creation apparatus according to claim 10, wherein a line type (a line type such as a solid line, a dashed line, a dashed-dotted line, a two-dot dashed line, etc.) and a line width of a figure are provided. 12. A dimension editing means for changing a corresponding dimension in accordance with a graphic element characteristic after shape replacement, when the graphic matching determination means determines that the graphic element is a neighborhood similar type graphic element. 10. The CAD drawing creation apparatus according to 10. 13. The CAD drawing apparatus according to claim 12, wherein said dimension editing means automatically changes a corresponding dimension in accordance with a graphic element characteristic after shape replacement. 14. The CAD drawing creating apparatus according to claim 12, further comprising an information adding step of adding information indicating a design change unit to the dimension edited in the dimension editing step. . 15. A CAD (Computer) of a dimension copy source
Aided Design) A dimension element extracting step of extracting a dimension element from the drawing data (A), a graphic element corresponding to the dimension element is extracted from the CAD drawing data (A) of the dimension copy source, and the dimension element and the graphic element are extracted. And a dimension / graphic correspondence step of combining and recording the combinations in a correspondence table, and comparing the geometrical shape element of the CAD drawing data (B) of the dimension copy destination with the graphic element recorded in the correspondence table by the dimension / graphic correspondence step. A graphic collation determining step of making a determination and determining whether the CAD drawing data (B) of the dimension copy destination is a valid graphic element or an invalid graphic element; Is copied to the CAD drawing data (B) of the dimension copy destination, and the dimension element corresponding to the graphic element determined to be A dimension element copying step of selecting a dimension element corresponding to a graphic element determined to be invalid by the shape matching determination step so as to be excluded from the copy target. 16. The graphic collation judging step is such that the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded in the dimension / graphic correspondence step are figures having the same coordinate values. 16. The dimension editing method according to claim 15, wherein it is determined whether or not the dimension is edited. 17. The graphic collation determining step is performed when the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded in the dimension / graphic correspondence step do not have the same coordinate value. , The CA of the dimension copy destination
16. The dimension editing method according to claim 15, wherein a geometric shape element of the D drawing data (B) is inspected, and a graphic having the same shape attribute is determined as a neighboring same type graphic element. 18. The same shape attribute includes shape characteristics of a graphic (shape types such as a horizontal line segment, a vertical line segment, a same inclined line segment, a perfect circle, a circular arc, a circular arc center point, and a line segment intersection). 18. The dimension editing method according to claim 17, wherein a line type (a line type such as a solid line, a broken line, a one-dot chain line, a two-dot chain line, etc.) and a line width of a figure are used. 19. A dimension editing step for changing a corresponding dimension in accordance with the graphic element characteristic after shape replacement when the graphic matching determination step determines that the element is a neighboring same type graphic element. 17. The dimension editing method described in 17. 20. The dimension editing method according to claim 19, wherein in the dimension editing step, a corresponding dimension is automatically changed in accordance with a graphic element characteristic after shape replacement. 21. The dimension editing method according to claim 19, further comprising an information adding step of adding information indicating that the dimension is a design change unit to the dimension edited in the dimension editing step. 22. A CAD (Computer) of a dimension copy source
Aided Design) Dimensional element extracting means for extracting a dimensional element from the drawing data (A), a graphic element corresponding to the dimensional element is fetched from the CAD drawing data (A) of the dimension copy source, and the dimensional element and the graphic element are extracted. Dimension / graphic correspondence means for combining and recording the combinations of the figures in a correspondence table, and collating the geometrical elements of the CAD drawing data (B) of the dimension copy destination with the graphic elements recorded in the correspondence table by the dimensional / graphic correspondence means. A graphic collation determining means for making a determination and determining whether the CAD drawing data (B) of the dimension copy destination is a valid graphic element or an invalid graphic element; The dimension element corresponding to the graphic element determined to be is copied to the CAD drawing data (B) of the dimension copy destination, and A dimension element copying unit that is capable of selecting a dimension element corresponding to a graphic element determined to be invalid so as to be excluded from the copy target. 23. The figure collation judging means according to claim 1, wherein said geometric drawing element and said dimension / geometry of said CAD drawing data (B) of said dimension duplication destination.
23. The dimension editing apparatus according to claim 22, wherein it is determined whether the graphic element recorded by the graphic correspondence means is a graphic having the same coordinate value. 24. The graphic collation judging means according to claim 1, further comprising: a geometric shape element of the CAD drawing data (B) of the dimension copy destination;
If the graphic element recorded by the graphic correspondence means does not have the same coordinate value, the geometrical shape element of the CAD drawing data (B) of the dimension copy destination is inspected, and a graphic having the same shape attribute is determined to be the same type in the vicinity. 23. The dimension editing apparatus according to claim 22, wherein the dimension is determined as a graphic element. 25. The same shape attribute includes shape characteristics of a graphic (shape types such as a horizontal line segment, a vertical line segment, the same inclined line segment, a perfect circle, a circular arc, a circular arc center point, and a line segment intersection). 25. The dimension editing apparatus according to claim 24, wherein a line type (a line type such as a solid line, a broken line, a one-dot chain line, a two-dot chain line, etc.) and a line width of a figure are used. 26. The apparatus according to claim 26, further comprising a dimension editing means for changing a corresponding dimension in accordance with the graphic element characteristics after shape replacement when the graphic matching determination means determines that the graphic element is a neighboring same type graphic element. 24. The dimension editing device according to 24. 27. The dimension editing apparatus according to claim 26, wherein said dimension editing means automatically changes a corresponding dimension in accordance with a graphic element characteristic after shape replacement. 28. The dimension editing apparatus according to claim 26, further comprising an information adding unit that adds information indicating that the dimension is a design change unit to the dimension edited by the dimension editing unit. 29. CAD (Computer Aided)
Design) A storage medium storing a control program for controlling a CAD drawing creating apparatus for creating a drawing and being readable by a computer, wherein the control program is configured to convert a dimension drawing source CAD drawing data (A) into a dimension element. A dimension element extracting module for extracting a dimension element from the CAD drawing data (A) of the dimension copy source, and combining and recording a combination of the dimension element and the graphic element in a correspondence table.
The figure correspondence module, the geometric shape element of the CAD drawing data (B) of the dimension copy destination is compared with the graphic element recorded in the correspondence table by the dimension / graphic correspondence module, and the CAD drawing of the dimension copy destination is determined. A graphic collation determining module that determines whether the data (B) is a valid graphic element or an invalid graphic element, and a graphic collating module that is determined to be valid by the graphic collation determining module. Dimensional elements are copied to the CAD drawing data (B) of the dimension copy destination, and dimension elements corresponding to graphic elements determined to be invalid by the graphic collation determination module can be selected so as to be excluded from the copy target. A storage medium, comprising: a dimensional element copying module. 30. The graphic collation judging module, wherein the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded by the dimension / graphic correspondence module are figures having the same coordinate value. 30. The storage medium according to claim 29, wherein it is determined whether or not the storage medium is the same. 31. The graphic collation judging module, when the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded by the dimension / graphic correspondence module do not have the same coordinate value. 30. The storage medium according to claim 29, wherein a geometric shape element of the CAD drawing data (B) of the dimension copy destination is inspected, and a graphic having the same shape attribute is determined as a neighboring same type graphic element. 32. The same shape attribute includes shape characteristics of a figure (shape types such as a horizontal line segment, a vertical line segment, the same inclined line segment, a perfect circle, an arc, a center point of an arc, a line segment intersection, and the like). 32. The storage medium according to claim 31, wherein a line type (a line type such as a solid line, a broken line, a dashed-dotted line, and a two-dot dashed line) and a line width of a graphic are used. 33. The control program, further comprising: a dimension editing module for changing a corresponding dimension in accordance with the graphic element characteristic after shape replacement when the graphic matching determination module determines that the graphic element is a neighborhood similar graphic element. The storage medium according to claim 31, characterized in that: 34. The storage medium according to claim 33, wherein said dimension editing module automatically changes a corresponding dimension in accordance with a graphic element characteristic after shape replacement. 35. The control program according to claim 33, wherein the control program has an information adding module for adding information indicating that the dimension is a design change unit to the dimension edited by the dimension editing module. Storage media. 36. CAD (Computer Aided)
Design) A storage medium which stores a control program for controlling a dimension editing apparatus for editing a dimension element of a drawing and is readable by a computer, wherein the control program is a CAD drawing data (A) of a dimension copying source.
A dimension element extraction module for extracting a dimension element from the
D: a dimension / graphics correspondence module which extracts from the drawing data (A) and collectively records a combination of the dimension elements and the graphic elements in a correspondence table, and a geometric shape element of the CAD drawing data (B) of the dimension duplication destination, and The dimension / graphic correspondence module performs collation determination with the graphic element recorded in the correspondence table, and the CAD drawing data (B) of the dimension copy destination
A graphic matching determination module for determining whether the graphic element is a valid graphic element or an invalid graphic element; and a dimension element corresponding to the graphic element determined to be valid by the graphic matching determination module. CA of dimension copy destination
A dimension element copying module that copies to the D drawing data (B) and that corresponds to the graphic element determined to be invalid by the graphic matching determination module, and that can be selected so as to be excluded from the copy target; A storage medium characterized by the above-mentioned. 37. The graphic collation judging module, wherein the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded by the dimension / graphic correspondence module are figures having the same coordinate value. 37. The storage medium according to claim 36, wherein it is determined whether or not the storage medium is the same. 38. The graphic collation judging module, when the geometric shape element of the CAD drawing data (B) of the dimension copy destination and the graphic element recorded by the dimension / graphic correspondence module do not have the same coordinate value. 37. The storage medium according to claim 36, wherein a geometric shape element of the CAD drawing data (B) of the dimension copy destination is inspected, and a graphic having the same shape attribute is determined as a neighboring same type graphic element. 39. The same shape attribute includes shape characteristics of a figure (shape types such as a horizontal line segment, a vertical line segment, the same inclined line segment, a perfect circle, an arc, a center point of an arc, a line segment intersection, etc.) The storage medium according to claim 38, wherein the storage medium is a line type (a line type such as a solid line, a broken line, a dashed-dotted line, or a two-dot dashed line) and a line width of a figure. 40. The control program, further comprising: a dimension editing module for changing a corresponding dimension in accordance with the graphic element characteristic after shape replacement when the graphic collation determining module determines that the graphic element is a neighborhood similar graphic element. 39. The storage medium according to claim 38, wherein: 41. The storage medium according to claim 40, wherein said dimension editing module automatically changes a corresponding dimension in accordance with a graphic element characteristic after shape replacement. 42. The control program according to claim 40, wherein the control program has an information addition module for adding information indicating a design change unit to the dimension edited by the dimension editing module. Storage media. 43. The storage medium according to claim 29, wherein the storage medium is a floppy disk.
The storage medium according to the above. 44. The storage medium according to claim 29, wherein said storage medium is a hard disk. 45. The storage medium according to claim 29, wherein the storage medium is an optical disk. 46. The storage medium according to claim 29, wherein said storage medium is a magneto-optical disk. 47. The storage medium is a CD-ROM (Co-ROM)
mpact Disk Read Only Memo
43. The storage medium according to claim 29, wherein the storage medium is ry). 48. The storage medium has a CD-R (Comp
43. The storage medium according to claim 29, wherein the storage medium is an act disk recordable. 49. The storage medium according to claim 29, wherein said storage medium is a magnetic tape. 50. The storage medium according to claim 29, wherein the storage medium is a nonvolatile memory card.
2. The storage medium according to 2. 51. A storage medium, comprising: a ROM (Read)
43. The storage medium according to claim 29, wherein the storage medium is an Only Memory (chip) chip.