JPH02264365A - Drawing preparing method - Google Patents

Abstract

PURPOSE:To automatically prepare a frame line and an article drawing in a prescribed frame size to a drawing paper in a specific size by enlarging the frame line, or reduc ing the commodity graphic together with the frame line by means of the inverse number of the enlargement ratio of the frame line when the irreducible area of the article graphic cannot be accommodated in the description effective area of the draw ing paper. CONSTITUTION:When the graphic irreducible area cannot be accommodated in a description effective area K, the enlargement ratio of the description effective area K and a frame line L are calculated so that the graphic irreducible area may be accommodated while the enlargement ratio is being left at '1', and the enlargement ratio is stored into a prepared data storing means 3. In addition graphic preparing data, which are obtained by synthesizing the frame line L enlarged by the enlargement ratio and the graphic at the enlargement ratio '1', are stored into the prepared data storing means 3, thereafter based on the drawing preparing data reduced by the reduc tion ratio to be the inverse number of the enlargement ratio, the article drawing and the frame line L are prepared on the drawing paper to be used. Thus the frame line L and the article drawing in the prescribed frame size can be automatically pre pared on the drawing paper in the specific size.

Description

[Detailed description of the invention]

OBJECT OF THE INVENTION J (Industrial Application Field) The present invention relates to a drawing creation method for automatically creating an article diagram using a CAD system. (Prior art) Generally, when creating drawings on drafting paper of a specified size,
A product drawing figure is created and a frame line is added to the drawing paper. This frame line also includes the front report column, etc., and the frame size cannot be said to be fixed. When drawings are created using a conventional CAD system, the creation of frame lines can be roughly divided into the following two types. One is to output the product surface figure (see Figure 3), which has been created in advance through automatic processing or interactive processing, onto the largest drawing paper using an output device such as a plotter, either to the original size (enlargement ratio "1") or to a reduced size. After that, use this drawing paper as Al,
A2. A3. Cut it into A4 size or any suitable size, then add the frame lines by hand to complete the drawing. The other method is to create a drawing by creating frame line size patterns for each paper size and combining the frame lines that match the size of the figure. (Problem to be Solved by the Invention) However, in the former method, there is a problem that the automation rate is low because the frame line is created manually. In addition, in the latter method, if the size of the object surface figure, that is, the necessary figure area including all the graphic elements, does not fit within the frame of the specified maximum drawing paper size, A1 in this case, the object surface figure is reduced. The synthesized data is stored in a storage device as drawing creation data, and the object surface figure and frame line are created by a plotter based on the drawing creation data. However, in this case, the object surface figure remains reduced, which is very inconvenient when the object drawing is to be modified or added or dimensions are entered at a later date. The present invention has been made in view of the above-mentioned circumstances, and its purpose is to automate the creation of drawings including object surface figures and frame lines, and also to enable modification and addition of object surface figures, entry of dimension lines, etc. An object of the present invention is to provide a drawing creation method that can be easily performed. [Structure of the Invention] (Means for Solving the Problems) The present invention provides a system in which drawings are created using a CAD system, and in which the frame size of the frame line of the drawing and the inside of the frame line are a paper data storage means that stores in advance a valid description area; and a determination means that determines whether a necessary graphic area including all the graphical elements of an article diagram fits into the valid description area of the drawing paper to be used; , a creation data storage means, and when a required figure area is included in the description effective area, the drawing creation data in which the object surface figure and the frame line are combined is stored in the creation data storage means, and then the Create a product surface figure and a frame line on the drawing paper to be used, and when the required figure area does not fit into the valid description area, set the valid description area and Calculating the enlargement ratio of the frame line, storing this enlargement ratio in the creation data storage means, and creating the drawing creation data in which the frame line enlarged by the enlargement ratio and the figure whose enlargement ratio remains "1" are combined. The present invention is characterized in that the object surface figure and the frame line are created on the drawing paper to be used based on the drawing creation data stored in the data storage means and then reduced at a reduction ratio that is the reciprocal of the enlargement ratio. (Operation) If the required figure area of the object surface figure does not fit into the valid description area of the drafting paper to be used, the object surface figure is
'', the frame lines are enlarged, and they are combined to obtain drawing creation data, which makes it very convenient when modifying, adding, or dimensioning the object surface figure. Also, when creating a drawing, the object surface figure is reduced together with the frame line by the reciprocal of the enlargement rate of the frame line, so the frame line of the predetermined frame size and the object surface figure are automatically drawn on the drawing paper of the specified size. can be created. (Example) Hereinafter, an example of the present invention will be described with reference to the drawings. First, in Figure 2, the CAD system! 1 is a graphic display, 2 is a keyboard, 3 is an external storage device, 4 is a plotter as an output device, and 5 is an arithmetic processing unit that executes programs and performs overall control of each device. The external storage device W13 includes:
A4. A3. It serves as a paper data storage means that stores the frame size of the frame line and the effective description area within each frame line for drafting paper of a specified size such as A2 and A1, and also creates data that stores the combined drawing creation data. It is also a means of memory. Further, the arithmetic processing unit 5 functions as a determining means for determining whether or not the object surface figure falls within a necessary figure area that includes all the figure elements, and also performs various types of control. Now, the drawing creation method in this embodiment will be explained with reference to FIG. 1 as well as the functions of the arithmetic processing unit 5. Now, FIG. 3 shows the shape of an article created by, for example, the mold cAD system, and FIG. 4 shows the shape of this article.
All graphical elements of the figure (shape lines, dimension lines, numbers, etc.)
This shows a figure-required area 2 including . This graphic required area 2 is determined by Zx (width in the x direction) and Zy (width in the y direction), and xsln and y-1n are reference coordinates. Further, FIG. 5 shows a frame line of the drawing, and this frame line includes a floating topic column La. In this case, the effective area for writing the article-figure is shown in the description effective area. The effective writing area is determined by Kx (width in the x direction) and Ky (width in the y direction), and has margins Kxs and Kxss in the X direction with respect to the frame line, and margins Kys and Kys in the y direction.
have. The size of this frame line is stored in the external storage device 3 in correspondence with the size of the drawing paper. The arithmetic and control unit 5 then determines the size of the drafting paper to be used based on input from the keyboard 2, as shown in step S1 in FIG. In this example, A4. Choose either A3 size. Next, as shown in step S2, the figure required area Z1 of the article-figure, that is, Z x, Z y, xmln,
Calculate ysln. Then, as shown in step s3, it is determined whether the necessary figure area 2 falls within the description effective area K for A4 size drawing paper, and if it does not fit,
In this case, it is determined whether or not the drawing paper falls within the required graphic area Z for A3 size drawing paper, which is the maximum size in this case. If the result of the determination (step S4) is that none of the drawings are accepted, the size of the drafting paper to be used is determined to be A3 in the case of a large paper sheet, and this is stored, as shown in step S5. Thereafter, as shown in step S6, the enlargement ratio of the frame line size corresponding to the stored paper size to the effective description area is calculated. The method for calculating this magnification rate is as follows. The magnification rate Kxa in the X direction to the effective writing area and the magnification rate Kya in the y direction to the valid writing area are determined by the following formulas: Kxa-Zx/Kx Kya-Zy/K)'. In this case, the larger magnification rate is set as the overall magnification rate S, and as shown in step S7,
This enlargement ratio S is stored together with the determined drafting paper size. Next, as shown in step s8, the external storage device 3
Read the specification data filed in
Enter information such as material and quantity in the section corresponding to the title column, using the original scale. After that, as shown in step S9, the composite position (overlapping position v! of the enlarged frame line Lc (see FIG. 6) with respect to the graphic necessary area Z is calculated. This composite position is determined based on the following formula. As shown in Fig. 6, if the amount of shift in the X direction is Sx and the amount of shift in the y direction is Sy, then SxmKxsIIS+ (ZxllS-Zx) ・0.
5Sy・-Kys #S+ (Zy Φ 5-Zy
)”0.5 and the X coordinate Qx of the reference coordinate Q of the enlarged frame line
and find the y-coordinate Qy. Qx-xs+In-5x Q Y -)'sin -S y Then, as shown in step S10, the frame line is enlarged at the enlargement rate S, and the reference point P is set at the synthesis position Q, and the article-figure is The drawing creation data that is synthesized into a drawing as shown in FIG. 6 is completed, and this drawing creation data is stored in the external storage device 3 as a creation data storage means. At this time, the enlargement rate of the object-figure remains at "1". After that, as shown in step Sll, the drawing creation data is outputted as a block with the reciprocal of the enlargement ratio S as a reduction ratio, thereby automatically creating an article figure and a frame line on drafting paper of a specified size. . It should be noted that when the required graphic area Z falls within the effective description area K of the maximum size drawing paper, the enlargement ratio is set to "1" (step 12). Therefore, in this case, the drawing creation data, which is a composite of the object-figure and frame line, is essentially stored in the external storage device v! 13, and output it as is to the block,
to create the object-shape and frame line. According to the present embodiment described above, if the required figure area of the object surface figure does not fit within the valid description area of the drafting paper to be used, the enlargement rate of the object surface figure remains "1" and the frame line is Since drawing creation data is obtained by enlarging both sides and composing them, it becomes extremely convenient when modifying, adding, or dimensioning the back end or object surface figure. Also, when creating a drawing, the object surface figure and the frame line are reduced by the reciprocal of the enlargement ratio of the frame line, so the frame line of the predetermined frame size and the object surface figure are automatically drawn on the drawing paper of the specified size. can be created. In addition, in the above embodiment, the graphic required area is processed using the calculation processing bag VR.
5, the required graphic area may be calculated manually by checking two diagonal points of the object surface graphic using a tablet device, and the required graphic area may be specified using this area.

【Effect of the invention】

As is clear from the above description, the present invention is capable of automatically creating object surface figures of various sizes along with frame lines on drawing paper of a predetermined size, thereby achieving automation.Moreover, the object surface figures can be created at an enlargement rate of "1". Save it as it is in the created data storage section (
Therefore, it is possible to perform modifications and additions to the object surface figure, write dimensions, etc. on the container.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a flowchart showing the control and control contents of the arithmetic processing unit, FIG. 2 is a hardware configuration diagram of the CAD system, and FIG. 3 is a diagram of an article created on any paper. Figure 4 shows the solid state, Figure 4 shows the required area for the object surface figure, Figure 5 shows the relationship between the frame line and the valid description area, and Figure 6 shows the enlarged frame line and the object surface figure. FIG. In the figure, 1 is a graphic display, 2 is a keyboard, and 3 is an external storage device! (paper data storage means 9), 4 is a plotter, and 5 is a calculation IJIFX!
It is a device. Figure 72 Figure ゛'5'-9fj! area diagram

Claims (1)

[Claims] 1. In a system in which drawings are created using a CAD system, a paper data storage means that stores in advance the frame size of the frame line of the drawing and the effective writing area within the frame line for drawing paper of a specified size, and the paper data storage means that should be used. comprising a determination means for determining whether or not a necessary graphic area including all the graphical elements of the article drawing fits in the valid description area of the drafting paper, and a production data storage means, and a necessary graphic area included in the valid description area. When inputting, after storing drawing creation data in which the article drawing figures and frame lines are combined in the preparation data storage means, the article drawing figures and frame lines are created and written on the drafting paper to be used based on this drawing preparation data. When the necessary figure area does not fit into the valid area, the enlargement rate of the description effective area and the frame line is calculated so that the necessary figure area can be accommodated with the enlargement rate "1", and this enlargement rate is added to the creation data. At the same time, drawing creation data in which the frame line enlarged at the enlargement rate and the figure whose enlargement rate remains "1" is stored in the creation data storage means, and then at a reduction rate that is the reciprocal of the enlargement rate. A method for creating a drawing, characterized in that the drawing to be used is used to create an article figure and a frame line on paper based on a reduced drawing data.