JPH01281571A - Method for arranging symbol drawing - Google Patents

Abstract

PURPOSE:To reduce the arrangement work of symbols and connecting work with lines or the like by retrieving a graphic arranged near an arrangement point at the time of arranging a symbol on the graphic, and automatically connecting a line or the like extracted as an object to be connected with the symbol. CONSTITUTION:Linear graphic information is inputted from a linear graphic storing device 15 to a symbol arrangement processing part 112 and displayed on a graphic display 12. While observing the displayed linear graphic, an operator specifies a symbol name and its arrangement position. The processing part 112 reads out symbol defining information corresponding to the specified symbol name from a storage device 14 and arranges a symbol shape on the specified position on the linear graphic. The sort of a connection line is extracted from the symbol defining information and a line close to the arranged symbol is retrieved. When a new near-by line is detected, the sort is compared with the connection line sort of the defining information and whether the line is to be connected or not is decided. When the line is decided to be connected, the line is extended, cut off or moved so that the coordinates of the end point of the line coincide with a symbol connection reference point.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for arranging symbols and figures, and in detail,
This invention relates to a processing method for arranging symbols that have a connection relationship with a map shape in a D system.

[Conventional technology]

Conventionally, in CAD systems, lines, etc. (hereinafter referred to as

When creating a drawing by placing symbols that have a connection relationship with (simply referred to as a line), the operator generally indicates the point or line on which he or she wants to place the symbol, and after placing the symbol, connects the symbol with the connection point. A method was used in which the connection work was performed by instructing one set of wires to be connected.

[Ill what the invention is trying to solve! Problem] In the above method, a large number of operations are required to create one symbol figure. In order to reduce the amount of operations, CAD systems have been considered that incorporate an automatic line connection function into the symbol placement function, but with this type of conventional automatic connection function, the connection point is limited to the origin of the symbol. Therefore, it can be applied to symbols with connection relationships as shown in Figure 6.

Symbols with multiple connection points as shown in FIG. 7 (in FIG. 7, "x" marks indicate connection points) could not be handled.

Furthermore, for symbols such as those shown in FIG. 6, it was necessary for the operator to indicate in advance the lines to be connected.

An object of the present invention is to solve the problem that conventionally, when arranging a symbol that has a connection relationship with a line, etc., a CAD operator must always indicate the connection point on the symbol with the power line, etc. The object of the present invention is to provide a method for arranging symbols and figures that requires a small amount of operation.

(Means for Solving Problem 11) In the method for arranging symbol figures of the present invention, symbol definition information that defines the connection relationship between symbols and figures (for example, line figures) created in advance before symbol placement is prepared. , when placing a symbol on the figure, searches for figures near the symbol placement point, and selects the figure to be connected to the symbol (
When a line (for example, a line) is found, a process is automatically performed based on the symbol definition information to correct the coordinates of the end points of the figure so that they match the coordinates of the connection points of the symbols.

[For production]

The present invention is useful when defining symbols to be placed.

Define connection information between a symbol and a shape that has a connection relationship, and when placing a symbol, use that connection information to automatically search for connection lines near the symbol placement point and select it as a connection target. By automatically performing the process of connecting extracted lines, etc. and symbols, the amount of work involved in arranging symbols and connecting them with lines, etc. can be significantly reduced.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a configuration diagram of an embodiment of the present invention.

11 is a CAD processing device, 12 is a graphic display device, 13 is a symbol shape storage device, ]4 is a symbol definition information storage device, 15 is a line figure storage device, and 16 is a figure storage device. CAD processing equipment! Reference numeral 11 has the same configuration as a personal computer or the like, but includes a symbol definition processing section 111 and a symbol arrangement processing section 112 as functions related to the present invention.

The graphic display device vi12 is used not only to display symbols, figures, etc., but also to instruct symbols and coordinates of arrangement of symbols.

Symbol shape storage device! 13 stores various symbol shape information in advance. The symbol definition information storage device 14 stores symbol definition information created by the symbol definition processing section 111.

The line figure storage device 1115 is a 0 figure storage device in which line figure information that has already been created before symbol placement is stored! 16 stores symbol placement processed graphic information processed by the symbol placement processing unit 112. Hereinafter, the symbol definition processing unit 111. The processing of the symbol placement processing unit 112 will be described in detail.

FIG. 2 is a diagram showing the processing flow of the symbol definition processing section 111. Before placing a symbol, in order to define the connection information between the symbol and the figure that has a connection relationship, the operator first uses the graphic display device v112 to
Indicates a symbol name and commands a symbol definition. In response to this, the symbol definition processing unit 111 inputs the corresponding symbol shape information from the symbol shape storage device 13 and defines the shape of the symbol (step 21).Next, the connection information between the symbol and the line is defined. (Step 22).

The connection information defined in 2N is the connection reference point with the symbol and the type information of the connecting line, and these are instructed by the operator in a conversational format from the graphic display device 12 (steps 221 and 222). ).

Through the above procedure, symbol definition information having the content shown in FIG. 3 is obtained. In fig.

The connection reference point is indicated by an [X] mark. This symbol definition information is stored in the symbol definition information storage device 14.

No. 41g1 is a diagram showing the processing flow of the symbol placement processing section 112. The placement of symbols on the knee shall be done on the line figure created on the knee.

This line figure information is stored in the line figure storage device E15.

When arranging symbols, the line figure information stored in the line figure storage device 15 is read out, and the line figure information stored in the line figure storage device 15 is read out, and the line figure information stored in the line figure storage device 15 is read out, and
At the same time as being incorporated into the graphic display W1
12 is displayed. An example of a line diagram is shown in No. 51m(a).The operator is equipped with a graphic display! ! While looking at the line figure displayed at 12, indicate the symbol name and its placement position. In response to this, symbol placement processing unit 1
Step 12 is to input the symbol arrangement coordinates (step 41).

Thereafter, the process of automatically arranging symbols on line figures is executed as follows.

First, store the symbol definition information corresponding to the specified symbol name in the symbol definition information storage! ! ! 14 and arranges the symbol shape at the designated position on the line figure (step 42). The type of connection line is extracted from the symbol definition information (step 43).Next, a line near the placed symbol is searched for (step 44). The enclosed area is the search range. If a new neighboring line is not found in this search, the process ends (step 45). If a neighboring line is found, its type is compared with the connection line type in the symbol definition information to determine whether it is a line that should be connected. 46) If the line should be connected, perform correction processing such as extending, cutting, or moving the end point coordinates of the chain line to match the connection reference point of the symbol (step 47). The processing for one neighboring line is completed. Then, the next neighboring line is searched and the process is repeated. FIG. be done.

. As described above, the CAD operator only has to instruct the placement of symbols, and the process of connecting the symbols to all connection lines to be connected is automatically performed.

〔Effect of the invention〕

As explained above, according to the symbol graphic arrangement method of the present invention, the following effects can be obtained.

(1) The process of searching for a figure such as a line to be connected to a symbol and correcting the coordinates of the figure to connect it to the connection point of the symbol is automatically performed.

The amount of operations related to symbol placement and connections can be significantly reduced.

(2) Since the symbol definition information is used to search for lines to be connected, erroneous connections are eliminated.

(3) Since the coordinates of connected lines etc. are corrected according to the coordinates of the symbol, accurate drawing is not required when drawing line figures etc. in advance.

[Brief explanation of the drawing]

Figure 1 is a block diagram of an embodiment of the present invention, Figure 2 is a processing flow diagram of the symbol definition processing section, Figure 3 is a diagram showing the contents of symbol definition information, and Figure 4 is the processing of the symbol placement processing section. Flowchart, Figure 5 is a diagram showing a specific example of symbol arrangement, Figure 6 is a diagram showing a specific example of symbol arrangement.
Figure and 7th tl! I is a diagram illustrating a conventional symbol graphic arrangement method. 11... CAD processing device, 111... Symbol definition processing section, 112... Symbol arrangement processing section, 12... Graphic display device. 13...Symbol shape storage device, 14...Symbol definition information storage device. 15... #lA figure storage device, 16... figure storage device. Figure 1 City E Month Figure 4 Figure 5rIA -:l construction start Figure 6 District 0 Figure 7

Claims (1)

[Claims] (1) In the method of arranging symbol figures in a CAD system, symbol definition information is prepared that defines the connection relationship between the symbol and a figure created in advance before symbol placement, and when placing a symbol on the figure, the symbol placement A symbol figure arrangement characterized in that when a figure near a point is searched and a figure to be connected to a symbol is found, a correction is made to match the coordinates of the end point of the figure to the coordinates of the connecting point of the symbol based on the symbol definition information. Method.