JPH05282393A - Automatic symbol generating system - Google Patents

Abstract

PURPOSE:To reduce the input operations and therefore the misoperations and also to reduce the working manhour by using a symbol definition file to perform a mouse input operation of a pointing system. CONSTITUTION:The number of left and right symbols are inputted by an input device 1 and an outer frame is obtained. Thus a symbol area is produced. Then a size double as long as the pin length is added to the lateral width of a symbol based on a symbol definition file 5. Thus the size of the outer frame is obtained in the direction X. Meanwhile the larger one of numbers of left and right symbol pines is multiplied by the pin space so that the size of the outer frame is obtained in the direction Y. Thus the storage of symbols is checked based on the value of the outer frame. If more symbols can be stored, the symbol forms are produced. The rectangular size of the symbol is decided from the lateral width of the symbol of the file 5 and the Y direction size set with production of the symbol area. Then a symbol pin form is produced, and the symbols produced at a symbol generating part 8 are shown on a graphic display of a screen display part 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is used for design automation for inputting and editing a logic circuit diagram of an electronic circuit such as CAD.
The present invention relates to a symbol automatic generation method that automatically creates symbols.

[0002]

2. Description of the Related Art Conventionally, in design automation for inputting and editing a logic circuit diagram of an electronic circuit of this kind, in order to create a symbol, one of the symbol shapes must be selected on the editor for creating the symbol. The mouse, which is a pointing device, is operated to input from the line segment to the display position.

In this case, the unified value at the time of creating the symbol is processed depending on the memory of the user.

[0004]

As described above, in the conventional design automation for inputting and editing the logic circuit diagram of the electronic circuit, in order to create a symbol, each line segment in the shape of the symbol is created. You are typing with the mouse, which is a pointing device. Therefore, there is a problem that the input operation of the mouse is troublesome.

Further, since the user creates the symbol while visually confirming it, there is a problem that the number of steps from the mistaken operation of the mouse to the creation of a normal symbol increases.

In addition, when a symbol is created, the size of the circuit drawing on which the symbol is to be arranged is not taken into consideration, so that there is a problem that the number of steps for correcting a symbol that cannot be arranged on the circuit drawing increases.

The present invention solves the problems in the prior art as described above. The input operation is reduced, the erroneous operation is reduced, the symbol creation man-hour is reduced, and the symbol which cannot be arranged in the circuit drawing is arranged. It is an object of the present invention to provide an automatic symbol generation method that can reduce the number of modifications and the number of correction steps.

[0008]

In order to achieve this object, the present invention stores a value defined for creating a symbol in an automatic symbol generation method for creating a symbol that constitutes a logic circuit diagram. A symbol accommodating confirmation means for obtaining the outer shape of the symbol by referring to the symbol definition file and confirming whether the symbol can be accommodated, a symbol generating means for generating the shape of the symbol, and a screen display means for displaying the generated symbol. And is configured.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic symbol generation system of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of the embodiment.

In FIG. 1, 1 is an input device such as a keyboard, 2 is an output device, 3 is an arithmetic processing device, 4 is a data storage device, 5 is the width of a symbol, the length of a symbol pin, the distance from the symbol pin, A symbol definition file for storing information defining the drawing size of the circuit drawing, and 6 is an automatic symbol generator.

In the symbol automatic generation unit 6, 7 is a symbol accommodating confirmation unit that calculates the outer shape of the symbol and confirms whether it can be accommodated on the circuit diagram, 8 is a symbol generation unit that generates symbols, and 9 is generated. A screen display unit that displays symbols. Next, the operation of the symbol automatic generation system of this configuration will be described.

FIG. 2 shows the processing procedure of the operation, and FIG.
The outline of the symbol is shown. Further, FIG. 4 shows a display screen of the symbols generated by the symbol generator 8, and FIG.
Indicates the contents of the symbol definition file 5.

In FIG. 2, process 2A is a process in the symbol accommodation confirmation unit 7, and process 2B is a process in the symbol generation unit 8.

First, the number of symbol pins is input from the input device 1. The numbers on the left and right sides of the symbol are input (step (indicated by S in the figure) 20). next,
The outer frame [31] is obtained as shown in FIG. That is, the symbol area is created (step 21).

Furthermore, referring to the symbol definition file 5 in FIG. 5, a dimension [33a] twice the length of the pin in FIG.
[33b] and the width of the symbol [34] are added to obtain the dimension [35] of the outer frame [31] in the X direction.

The Y-direction dimension [33a] + [33b] + of the outer frame [31] is calculated by multiplying the pin spacing by either the left or right symbol pin count, whichever is greater, in step 20.
Find [34].

A housing check (step 22) is performed from the value of the outer frame [31]. Here, in the symbol definition file 5 in FIG.
Check if it can be accommodated in the directional dimension [37]. If it cannot be accommodated, enter the number of symbol pins (step 20)
Return to.

If it can be accommodated, a symbol shape is created (step 24). To obtain the rectangular dimension [32] of the symbol, the width of the symbol in the symbol definition file 5 and the Y-direction dimension [3] obtained in the symbol area creation (step 21)
5].

Next, the symbol pin shape is created (step 25). The line segments to be symbol pins are separated by the pin interval of the symbol definition file 5, and the left and right symbol pins are placed on the left and right sides, respectively, by the length of the pins.

Symbols generated by the symbol generator 8 [4
1] is displayed on a graphic display (not shown) in the screen display unit 9 as shown in FIG.

[0022]

As described above, the automatic symbol generation method of the present invention uses the symbol definition file to perform the pointing-type mouse input operation, so that the input operation is reduced and the erroneous operation is reduced. Further, it is possible to reduce the number of man-hours for creating symbols, and further, there is an effect that the number of man-hours for making symbols that cannot be arranged in the circuit drawing is eliminated and the number of man-hours for correcting the symbols can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration in an embodiment of an automatic symbol generation system of the present invention.

FIG. 2 is a flowchart showing a processing procedure of an operation in the embodiment.

FIG. 3 is a diagram showing an outer shape of a symbol in an example.

FIG. 4 is a diagram showing a display screen of generated symbols in the embodiment.

FIG. 5 is a diagram showing a symbol definition file in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 input device 2 output device 3 arithmetic processing device 4 data storage device 5 symbol definition file 6 symbol automatic generation unit 7 symbol accommodation confirmation unit 8 symbol generation unit 9 screen display unit

Claims (1)

[Claims] 1. An automatic symbol generation method for generating a symbol constituting a logic circuit diagram, the outline of a symbol is obtained by referring to a symbol definition file storing a value defined for generating a symbol, An automatic symbol generation system comprising: a symbol accommodation confirmation means for confirming whether the drawings can be accommodated, a symbol generation means for generating the shape of the symbol, and a screen display means for displaying the generated symbol.