JPH079658B2 - Enlarged automatic drawing method with constant text size - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] The present invention relates to a method for automatically creating a drawing in which a character size in a figure is invariable when enlarging a two-dimensional figure. For the purpose of providing an automatic creation method that can draw a magnified view that is easy to see by enlarging the whole after performing the corresponding reduction processing, the figure information about the elements connecting the figures and the attribute information such as dimensional accuracy, Enlarged view of enlarging the figure at the enlargement ratio specified by the operator via the graphic display on the figure processing system that holds the figure information database in which the chain information indicating the connection of the elements forming the figure is registered. In the creation method, from the graphic information in the database, "graphic character data" consisting of a single character string and "dimensions" attached to the dimension line The "line character data" is separated by a means for separating, and the "graphic character data" obtained by the separation is based on the character string center coordinates.
Obtained by the means for obtaining the character size data reduced to the reciprocal of the enlargement ratio specified by the operator, the "dimension line character data" obtained by the separation, the character size data, the enlargement ratio specified by the operator. And the character writing position coordinate value data is changed to a value such that the reduced character fits in an appropriate position, and the character data and the figure are changed. The information and the information are enlarged by the enlargement processing designated by the operator by the means for performing the enlargement processing.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for automatically creating a drawing that is easy to see while the size of characters in a figure remains unchanged when enlarging a two-dimensional figure.

When it is necessary to enlarge a figure while automatically creating a two-dimensional figure such as a conventional part drawing, the characters attached to the original drawing are
Since all are enlarged due to the enlargement process, there is a drawback that the parts that are difficult to see in the original drawing are still enlarged and difficult to see. It was requested to develop a technology that makes it easy to see at the same time during the enlargement process.

[Prior Art] In the field of precision parts design such as mechanical design and die design, many drawing man-hours are required to create drawings, and dimension values and figure shapes are complicated and precise. Visibility is an absolutely necessary condition. Therefore, in the field of precision design, there is a need for an enlarged image automatic creation method that can be created accurately and easily. That is, in a drawing that has been created once, if the drawing is small and does not look good, or if the drawing is difficult to see due to interference such as overlapping characters in the figure, enlargement processing is required. In the conventional method of creating an enlarged view using a CAD system, processing is performed as shown in the block diagram of FIG. That is, in the registration of graphic information and attribute information
From the managed database, the enlargement ratio shown in is obtained. In step 3, the coordinate values of each segment such as the viewpoint / end point coordinate values of the graphic segment (element) are multiplied to obtain new coordinate values. At, the figure is displayed, and the operator corrects the defective portion.

[Problems to be Solved by the Invention] As shown in FIG. 7, when the processing shown in FIG. 6 is performed on the original drawing of FIG. Then, the same magnification is applied to both coordinate values indicating the writing start position of the character. Therefore, even if the characters are enlarged as shown in FIG. 7B, it is not possible to prevent the characters from interfering with each other, and the unsightly appearance of the overlapping characters cannot be solved. In addition, since the characters for explaining the figure such as dimension line characters are often around the figure, the size of the letter is too large when enlarged, in other words, the area occupied by the letter in the drawing is large. There is a drawback in that the area is too wide compared to the area of the figure, and the operator took a long time to process it, even if the operator made appropriate corrections to make it easier to see.

The object of the present invention is to improve the above-mentioned drawbacks, and when processing an enlarged figure, automatically perform a reduction process corresponding to the enlargement ratio for the used characters and then enlarge the whole to automatically create an enlarged view that is easy to see. To provide a method.

[Means for Solving Problems] FIG. 1 is a diagram showing a principle configuration of the present invention. In FIG. 1, 1 is an electronic calculator operating unit (graphic display), 2 is an operator, 3 is a database, 4 is data separating means, 5 is graphic character data processing means, 6 is dimension line character data processing means, Reference numeral 7 indicates an enlarging means.

A graphic processing system that holds a graphic information database that stores graphic information about elements that combine shapes, attribute information such as dimensional accuracy, and chain information that indicates the connection between elements that make up a graphic In the enlarged drawing creation method that enlarges the figure at the specified enlargement ratio via the display, the figure information in the database is used as "figure character data" and "dimension line character data" attached to the dimension line. And the "graphic character data" obtained by the separation by the means for separating
Obtained by the means for obtaining the character size data reduced to the reciprocal of the enlargement ratio specified by the operator, the "dimension line character data" obtained by the separation, the character size data, the enlargement ratio specified by the operator. To the data reduced to the reciprocal of the above, and further, the character writing position coordinate value data is changed by a means for changing the value so that the reduced character fits in an appropriate position, and the character data and the graphic Enlargement processing is performed on the information and the enlargement ratio specified by the operator by means of the enlargement processing.

[Operation] In FIG. 1, the operator 2 first operates the operation unit 1 to take out graphic information from the database 3, and the separating means 4 draws graphic data (including dimension line data) and character data, especially characters for explaining a graphic. The data and the dimension line character data are separated. Regarding the character data, for the graphic character data, the central coordinate value of the entire character string is obtained by the processing means 5 and the character size is reduced by a factor of 1 based on the central coordinate value. On the other hand, for the dimension line character data, the processing unit 6 reduces the character size from the character writing position to 1 / magnification and changes the coordinate value of the character writing position to the coordinate value corresponding to the reduced character. Next, the enlarging means 7 enlarges the figure at a predetermined magnification. As a result, the reduced character is enlarged and becomes equal to the original size, which makes the character easier to see than a conventional character.

[Embodiment] FIG. 2 is a view for explaining a concrete example of the processing means 5 for the graphic characters in FIG. In FIG. 2, a square column shown in FIG. 2A has eight characters having a predetermined character width and character height. For example, an explanatory character of a graphic is shown.
For character data, character output point P1, character string center P0, character end point
The coordinate values of P2 can be set. When the coordinate value for P0 is (Cx, Cy), the size of the explanatory text is 1
/ When multiplying, for example, 1/2, the coordinate value of P0 does not change,
With respect to P1 and P2, the X and Y directions are halved to become P1 'and P2'. A character string with a character height of 1/2 is obtained from the character writing point P1 '. This data is later sent to the processing means 7.

Next, FIG. 3 is a diagram for explaining a concrete example of the processing means 6 for the dimension line character data. In FIG. 3A, the dimension line character 12 is shown as a line of three squares with respect to the dimension line 11, and the character writing point is shown as P3, and the character string 12 is the dimension line 11
It shows the case of being on the extension of. Since the dimension line character data corresponds to the dimension line 11, it is separated from the figure description character data in FIG. Then, for the data of the dimension line character string 12, the character size is multiplied by 1
When the number is 1/2, the character writing point P3 is used as a reference, so that FIG. 3B is obtained. At this time point P3 and the end point of the dimension line
Since the coordinate value does not change with P4, the next enlargement processing
Since the space between P3 and P4 is doubled, only the enlarged view in which the space between the end of the character in FIG. 2B and the point P4 is well wide is obtained.

FIG. 4 is a diagram showing an example of an enlarged view obtained in this state,
The original drawing shown in FIG. 4A becomes as shown in FIG. That is, the dimension line character strings (I) and (II) are good, but the portions (III) and (IV) are too wide to be spaced from the dimension line, making it difficult to see. Therefore, as shown in Fig. 3C, the character writing point P3
Even if P4 is divided by a factor such as 1/2, the character writing point P3
Be P3 ′. Character string 12 'with character size 1/2 from point P3'
Then, the processing of the processing means 6 ends. Then, since the enlargement is performed by the enlargement processing means 7, the dimension line character strings (III) (IV) become (V) (VI) as shown in FIG. 4C.
An easy-to-read character string can be obtained together with the character strings (I) and (II).

Note that FIG. 5A shows a case where the dimension line character string 12 is above the dimension line 11 and the character writing point P5 is close to the end point P4 of the dimension line, and 13 is a dimension auxiliary line. In FIG. 5B,
The processing means 5 reduces the character size based on the point P5. Next, looking at the distance between the character end point and the dimension extension line 13, when it is considerably wide as compared with FIG. 5A, the character writing point P5 is set to P5 ′ so as to be close to the dimension extension line 13, And P4
Is also P4 '. In this way, the processing of the processing means 6 is completed. Then, enlarging processing is performed to obtain a suitable drawing.

[Effects of the Invention] According to the present invention, as described above, when an enlarged view is created as in a part drawing, the size of the character itself is not changed and the dimension line spacing is widened. There is no interference between each other, and the balance of the entire figure is adjusted and output is possible. Since there is almost no need for the operator to make corrections, the number of man-hours required to create a drawing is reduced, and a highly reliable drawing can be obtained in a short time.

[Brief description of drawings]

FIG. 1 is a diagram showing the principle configuration of the present invention, FIG. 2 is an explanatory view of the processing means 5 of FIG. 1 as an embodiment of the present invention, and FIGS. 3 and 5 are explanations of the processing means 6. FIG. 4 is a specific example of an enlarged view according to FIG. 1, FIG. 6 is a diagram for explaining a conventional enlarged view creating method, and FIG. 7 is an example of an enlarged view according to FIG. 1 ... Computer operating unit 2 ... Operator 3 ... Database 4 ... Data separating means 5 ... Figure character processing means 6 ... Dimension line character data processing means 7 ... Enlarging means

Claims (1)

[Claims] 1. Graphic information relating to elements that connect graphics,
The graphic display system (1) is operated by the operator (2) on a graphic processing system having a graphic information database (3) in which attribute information such as dimensional accuracy and chain information indicating connection between elements forming a graphic are registered. In the enlarged view creation method for enlarging the figure at the enlargement ratio specified via, the figure information of the database (3) is used to create "figure character data" consisting of a single character string and "dimension line" attached to the dimension line. Character data "is separated by means (4) for separating, and" graphic character data "obtained by the separation is the reciprocal of the enlargement ratio designated by the operator (2) with reference to the center coordinates of the character string. For the "dimension line character data" obtained by the means (5) for obtaining the reduced character size data, the character size data is A means (6) for changing the data reduced to the reciprocal of the enlargement ratio designated by the operator (2) and further changing the character writing position coordinate value data to a value such that the reduced character fits in an appropriate position. And enlargement the character data and the graphic information to the enlargement ratio specified by the operator (2) by means (7) for performing enlargement processing. Method.