KR0134282B1 - Cad system - Google Patents

Abstract

The present invention relates to a method for creating an extension entity in a data method of designing a piping element. The present invention provides a method for completing the deletion or movement of each piping element by assigning the same extension entity to all entities related to each piping element. It is to provide a method for generating an extended entity. The object of the present invention is to collect all the entities constituting each piping element, open the zero.dat file, merge the zero.dat characters with the material, size, and shape symbols of the piping element, and then close the zero.dat file. Step, registering the zero.dat character and the material, size, shape symbol of the piping element as an application name, for all the entities constituting the piping element by using the registered application name Based on a data method consisting of creating an extended entity, opening a zero.dat file, converting zero.dat characters to numbers, adding 1, converting them to characters, saving them, and closing the zero.dat file again. It is achieved by the extended entity generation method in the design method of the piping element.

Description

How to create an extended entity in the design method of piping elements based on data ice

1 is a T-shaped tube displayed by the prior art.

2 is an embodiment of a T-shaped tube displayed in accordance with the present invention.

3 is another embodiment of a T-shaped tube displayed in accordance with the present invention.

4 is a basic drawing for inputting data of piping elements in accordance with the present invention.

5 is a data list of piping elements entered in accordance with the present invention.

6 is a flowchart for creating an extension entity in accordance with the present invention.

Fig. 7 T-shaped pipe connected to the pipe.

8 is a partial view of a piping diagram designed in accordance with the present invention.

Explanation of symbols on the main parts of the drawings

1: pipe 2: T-shaped pipe

FIELD OF THE INVENTION The present invention relates generally to computer aided design (CAD) systems, and more particularly to a method for creating an extended entity in a data method of designing piping elements.

The present invention relates to an application entitled "Method of Designing Piping Elements Based on Data Method Applied by Applicant as Same to This Application".

In conventional CAD systems, designers had to spend a lot of time editing drawings. For example, in order to delete or move the T-shaped pipe 2 connected to the pipe 1 as shown in FIG. 7, it was necessary to perform a delete or move command for all the entities forming the T-shaped pipe 2. Clearly, this is very cumbersome and time consuming.

Accordingly, the present invention is to eliminate the above problems.

The present invention provides a method for generating an extended entity capable of completing the deletion or movement of each piping element in one operation by assigning the same extension entity to all entities related to each piping element.

The object of the present invention is to collect all the entities constituting each piping element, open the zero.dat file, merge the zero.dat characters with the material, size, and shape symbols of the piping element, and then close the zero.dat file. Step, registering the zero.dat character and the material, size, shape symbol of the piping element by the application name step, using the registered application name for all the entities constituting the piping element Based on a data method consisting of creating an extended entity, opening a zero.dat file, converting the zero.dat characters to numbers, adding 1, converting them to characters, saving them, and closing the zero.dat file again. It is achieved by the extended entity generation method in the design method of the piping element.

Hereinafter, a design method of a data ice piping element which is the basis of the present invention will be briefly described, and the present invention will be described with reference to the accompanying drawings.

(Design method of piping element based on data method)

In the design of plumbing elements, conventionally, the image of basic pipes and parts (parts refer to valves, elbows, etc. as piping elements except pipes) is inputted by product material, shape, and size, and required by the designer. When a pipe or part was selected, an image method was used to display an image thereof on a monitor.

The conventional pipe design method of such a CAD system has a lot of limitations because each component or pipe is stored as a block image. The conventional approach has been to store the image of the T tube of FIG. 1 as it is in memory, for example to display a T-shaped tube as shown in FIG. For each shape, that is, Y tube, YT tube, and elbow, a basic image was drawn and stored, and a different image for each size was drawn and stored. As is well known, storing images requires a large memory capacity. Designers will be able to design piping more easily as more and more types of components are stored in memory, but this requires larger amounts of memory, and the larger the memory requirements, the slower the system will run.

The conventional approach also incurs unnecessary costs by displaying the tubing elements on a monitor in full, lifelike shape.

The method of designing the data element of the piping method is to eliminate the above-mentioned problems. The data of each piping element is input to the memory device by material, shape, size, and type of each piping element on the market using a CAD system. Constructing a database, when a designer selects a material, a shape, a size, and a type for an arbitrary piping element, outputting data from the database, and based on the data output from the database. And displaying the selected piping element on the monitor in the centerline and at each end shape of the piping element.

Instead of storing all piping elements, pipes and components, in an image format, but in a data format, the designer selects materials, shapes, and sizes so that the piping elements are displayed on the monitor.

1 shows a T-shaped joint tube displayed by a conventional imaging method as described above.

FIG. 2 shows a T-shaped seam displayed only in the shape of the center line and each end according to the data ice.

3 shows, as another embodiment, a T-shaped seam displayed with only the center line, the outline and each end shape.

By displaying pipes and parts in the above manner, the operation speed of the computer can be greatly improved, and the time can be greatly reduced in designing, editing, and modifying piping drawings.

4 and 5 exemplarily illustrate inputting and storing data of piping elements into a database.

Figure 4 (a) is a YT-shaped joint tube without an insert, Figure 4 (b) is a YT-shaped joint tube with an insert, Figure 4 (c) is a YTC shaped joint tube without an insert, 4 (d) shows a YTC shaped joint tube with an insert.

5 is data inputted to the YTC tube of FIG. In the first line, CIHUB050050, CI stands for cast iron (i.e. material), HUB stands for shape (i.e., shape with insert), and 050050 defines size. The figures on the right side of CIHUB050050 represent the values of I2, H2, J, R2 ... as defined in FIG. In this way, after entering the data for all commercially available parts and building the database in a known manner, the designer can move the actual commercially available parts to the design drawing just by typing CIHUB050050YTC on the command line. When a specific component is selected based on the input data in this way, the data is read from the database and displayed on the monitor in the form of FIG. 2 or 3.

This method of data storage can respond quickly to market changes by simply updating the database even when the dimensions of piping elements are changed or new parts are developed. In addition, the specification of piping elements can be easily applied to other excluded countries simply by updating the database. When the pipe construction is performed based on the drawings designed using the data method, the contractor can easily purchase the parts shown in the drawings, thereby greatly reducing the work time.

(How to create an extended entity)

Now, a method of generating an extended entity, which is a subject matter of the present invention, will be described in detail with reference to the accompanying drawings.

6 is a flowchart for automatically creating an extension entity in accordance with the present invention.

As shown in Fig. 7, the pipe 1 is first shown by the above-described data method, and the T-shaped pipe 2 is shown connected thereto.

Referring now to FIG. 6, the process of creating an extended entity for the T-shaped tube 2 is described. The T-shaped tube 2 is displayed in three dimensions and currently consists of ten entities. First, collect all 10 entities for the T-shaped tube 2. Next, open the zero.dat file. The zero.dat file is a file name specially named by the applicant, in which the same letter is given to each entity of one pipe element and another letter is given to another pipe element as described later. Open zero.dat and add the material, size and shape of the letter and T-shaped tube (2) stored here. That is, (zero.dat characters) + (material, size, shape). Preferably the character stored in zero.dat is 1, so the result can be equal to 1BWD050TEE. Close the zero.dat file, register 1BWD050TEE with the application name, and use it to create the extension entity. The application name is added to each of the ten entities of the T-shaped pipe 2. That is, the first entity name + 1BWD050TEE; Second entity name + 1BWD050TEE; ....... ninth entity name + 1BWD050TEE; 10th entity name + 1BWD050TEE. Then open the zero.dat file again, convert the zero.dat character to a number, increment it by 1, save the file again, and close the zero.dat file. This concludes the procedure. Each time the zero.dat character is incremented, piping elements of the same size, material, and shape can be easily distinguished due to different expansion entities.

In this way, by adding zero.dat characters, materials, and sizes to each entity that constitutes a single pipe element, an extended entity can be created to delete, move, and copy each pipe element in one operation. It can also be used to calculate materials, which can greatly contribute to the estimation and automation of equipment processes.

While the invention has been described above on the basis of specific embodiments, it will be understood by those skilled in the art that the invention can be readily implemented in various embodiments and applications without departing from the scope of the invention.

Claims (1)

Gathering all the entities that make up each route element, open the zero.dat file, combine the zero.dat text with the material, size, and shape symbols of the pipe element, and then close the zero.dat file, Registering the combination of the zero.dat character and the material, size, and shape symbol of the pipe element as an application name, Creating an extension entity for all entities constituting the plumbing element using the registered application name, and Open the zero.dat file, convert the zero.dat character to a number, add 1, save it as a character, and close the zero.dat file again. An extended entity generation method in a method of designing a piping element based on a data method including a.