JPH06203085A - CAD device - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a CAD device capable of outputting a drawing from an output device in a short time. [Configuration] The second storage unit 12 stores conversion information obtained by previously converting information of a predetermined graphic symbol into a format of an instruction to the XY plotter 10. The determination unit 18 is XY
When the drawing is output from the plotter 10, it is determined whether or not the conversion information corresponding to the information of the graphic symbol input from the input device 2 is stored in the second storage unit 12. When the corresponding conversion information is stored in the second storage unit 12, the search unit 14 stores the conversion information in the second storage unit 1.
Take out from 2 and output. On the other hand, when the corresponding conversion information is not stored, the conversion unit 16 converts the information of the graphic symbol into the format of the instruction to the XY plotter 10 and outputs it. This conversion information is transferred to the XY plotter 1.
Transfer to 0 and output the drawing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD device for designing a circuit diagram and outputting a drawing from an output device such as an XY plotter.

[0002]

2. Description of the Related Art FIG. 3 shows an X-Y in a conventional CAD device.
7 is a flowchart for explaining an operation of outputting a circuit diagram from the plotter. The CAD device inputs, for example, information about a circuit diagram, performs design, and then outputs the circuit diagram from an output device such as an XY plotter by a predetermined operation.
The circuit diagram output by this CAD device is a straight line, a circle,
It is configured by combining graphic elements such as arcs, and in order to input information regarding the circuit diagram, the type of graphic element and the connection relationship between graphic elements are specified for each graphic element. For example, in the case of drawing a line segment, a straight line and the start and end points of the straight line are designated by the mouse or the like as the types of graphic elements.

In a conventional CAD device, when a drawing is output from an XY plotter based on the information relating to the circuit diagram thus input, as shown in FIG. Based on this, information about the graphic element (information that specifies the type of graphic element and the connection relationship between graphic elements) is extracted (S102), and the extracted information about the graphic element is converted into an instruction to the XY plotter (S).
104) and transfer the converted information to the XY plotter (S106). Then, the above-mentioned processing is performed for each of the graphic elements constituting the circuit diagram (S108), all the information relating to the circuit diagram is converted into an instruction to the XY plotter, and transferred to the XY plotter. The XY plotter performs operations such as lowering the pen on the paper, moving the pen, and lifting the pen, and outputs the input predetermined drawing.

[0004]

However, in the conventional CAD apparatus, since the drawings are output by the above method, for example, when a plurality of figures such as the same AND circuit are used in the circuit diagram. However, the operation of converting the graphic elements constituting the same graphic into the format of the command to the XY plotter is repeated each time. For this reason,
There is a problem that it takes a long time to convert the information about the graphic element into an instruction to the XY plotter, and it is impossible to output the input predetermined drawing in a short time.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a CAD device capable of outputting a drawing from an output device in a short time.

[0006]

A CAD device according to the present invention for achieving the above object provides information on a graphic symbol and connection information indicating coordinates of the graphic symbol and a connection relationship between the graphic symbols. Input means for inputting, output means for outputting a drawing drawn based on the information of the graphic symbol and the connection information, and conversion for converting various kinds of information of the graphic symbol into a format of a command to be sent to the output means Storage means for storing information, retrieval means for extracting and outputting conversion information corresponding to the information of the graphic symbol whose conversion information is stored in the storage means, and conversion information stored in the storage means Conversion means for converting the information of the graphic symbol and the connection information input from the input means into a format of an instruction to the output means, and outputting the command. It is determined whether or not conversion information corresponding to the information of the graphic symbol input from the input means is stored in the storage means, and if stored, the information of the graphic symbol is sent to the search means, If not stored, it receives the output signals from the determining means for sending the information of the graphic symbol to the converting means, the searching means and the converting means, combines the output signals of both and outputs them to the output means. And a processing means for performing the processing.

Further, the converting means, after converting the information of the graphic symbol into a format of an instruction to be sent to the output means,
It is desirable that the converted information is stored in the storage means.

[0008]

According to the present invention, with the above-mentioned structure, the conversion information obtained by converting the predetermined graphic symbol information into the format of the command to the output means is stored in the storage means in advance. With regard to (2), when outputting a circuit diagram or the like to the output means, it is not necessary to change to an instruction to the output means. Can be shortened to

Further, by storing the conversion information corresponding to the information of the graphic symbol converted by the conversion means in the storage means, when the circuit diagram is designed again using the same information of the graphic symbol. When the drawing is output to the output means, it is not necessary to convert the information of the graphic symbol into the format of the instruction to the output means.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A CAD device according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic block diagram of a CAD apparatus which is an embodiment of the present invention, and FIG.
7 is a flowchart for explaining an operation when an AD device outputs a circuit diagram from an XY plotter.

The CAD device shown in FIG. 1 includes an input device 2 and
A control unit 4 that receives a signal from the input device 2 and performs processing corresponding to the signal, a display device 6 that displays a circuit diagram based on the information input from the input device 2, and a circuit that is input from the input device 2. A first storage unit 8 for storing information relating to the figure, an XY plotter 10 as output means, and conversion information obtained by previously converting information of various graphic symbols into a command format for sending to the XY plotter 10. The second storage unit 12 serving as a storage unit and the conversion information corresponding to the graphic symbol information whose conversion information is stored in the second storage unit 12 among the graphic symbol information input from the input device 2. Retrieval unit 14 that retrieves and outputs from the second storage unit 12, and information of the graphic symbols that is not stored in the second storage unit 12 as conversion information among the information of the graphic symbols input from the input device 2. The conversion unit 16 that converts the connection information and the command format to the XY plotter 10 and outputs the converted information, and the conversion information corresponding to the information of the graphic symbol input from the input device 2 are stored in the second storage unit 12. A determination unit 18 that sends the graphic symbol information to the search unit 14 if it is stored, and sends the graphic symbol information to the conversion unit 16 if it is not stored; The processing unit 20 receives the output signals from the converter 14 and the conversion unit 16, synthesizes both output signals, and outputs the combined output signals to the XY plotter 10.

The input device 2 has a keyboard, a mouse and the like for inputting information regarding a circuit diagram to be created. Here, the information regarding the circuit diagram is divided into two types, that is, the information on the graphic symbol and the connection information. The graphic symbol is
It is composed of straight lines, circles, arcs, etc., and is the smallest unit that has a graphic meaning. For example, AND
Symbols such as circuits, NAND circuits, and flip-flops correspond to this. Further, the connection information includes information about the connection such as the coordinates of the graphic symbols and the coordinates of the connection between the graphic symbols.

The control unit 4 displays the graphic symbol information and the connection information input from the input device 2 on the display device 6 or stores them in the first storage unit 8. In addition, the control unit 4
Outputs the information of the graphic symbol and the connection information to the determination unit 18 and the conversion unit 16 in order to output the circuit diagram input according to the instruction from the input device 2 from the XY plotter 10. The display device 6 is, for example, a CRT display or the like that displays a circuit diagram designed based on the input information.

The second storage unit 12 is constituted by an external storage device such as a hard disk device, and information of various frequently used graphic symbols is converted into a format of a command to be sent to the XY plotter 10 in advance. The conversion information is stored.

Further, the conversion unit 16 converts the information of the graphic symbols, which is not stored in the second storage unit 12, out of the information of the graphic symbols input from the input device 2, into the XY plotter 1.
After the conversion into the format of the instruction to 0, the converted conversion information is stored in the second storage unit 12. The control program of the apparatus of this embodiment is stored in a memory (not shown).

Next, in the CAD apparatus of this embodiment, X
The operation of outputting a circuit diagram from the -Y plotter 10 will be described with reference to the flowchart of FIG. The operator
In advance, a circuit diagram is created on the display device 6 using the input device 2 such as a mouse. Next, when the operator inputs a command for outputting a drawing from the XY plotter 10 via the input device 2, the output of the circuit diagram created according to the flow shown in FIG. 2 is started. First, the control unit 4 takes out the information of the graphic symbol and the connection information from the created circuit diagram, and sends the information of the graphic symbol to the determination unit 18 and the connection information to the conversion unit 16 (S10). The determination unit 18 determines that the conversion information corresponding to the sent graphic symbol information is the second storage unit 12.
Whether or not the corresponding conversion information of the input graphic symbol information is stored is sent to the retrieval unit 14, and the conversion information is stored in the conversion unit 16 if not stored. To (S20).

The search unit 14 searches the second storage unit 12 for conversion information corresponding to the sent graphic symbol information, and outputs the result to the processing unit 20 (S30). Further, in the determination of step S20, the conversion unit 16 converts the information of the graphic symbol whose conversion information is not stored in the second storage unit 12 into the format of the instruction to the XY plotter 10 (S50). After the converted conversion information is stored in the second storage unit 12 (S60), the conversion information is output to the processing unit 20.

On the other hand, the connection information sent from the control unit 4 is
The conversion unit 16 converts the command into a format of an instruction to the XY plotter 10 (S70) and sends it to the processing unit 20. The processing unit 20 combines the information sent from the search unit 14 and the conversion unit 16 as necessary, and outputs the combined information to the XY plotter 10 (S4).
0).

Then, in step S80, the processes of steps S10 to S40 are repeated by the number of figures (the number of figure symbols) forming the circuit diagram. Through the above processing procedure, all the information relating to the circuit diagram is converted into the format of the instruction to the XY plotter 10 and output. The XY plotter 10 performs operations such as lowering the pen on the paper, moving the pen, and raising the pen according to the sent information.
Output a predetermined circuit diagram on paper.

In the CAD apparatus of this embodiment, the conversion information obtained by converting the information of the predetermined graphic symbol into the format of the instruction to the XY plotter is stored in the second storage unit, and is stored. For information on the graphic symbols
When the circuit diagram is output from the XY plotter, it is not necessary to change to the format of the instruction to the XY plotter. Therefore, as compared with the conventional CAD device, the time required to output the drawing is the time required for the conversion. Can be shortened.

Further, in the CAD apparatus of this embodiment, the conversion information is created for the information of the graphic symbol for which the conversion information is judged not to be stored in the second storage section by the judgment section, and the converted information is stored. When the circuit diagram is designed again by using the same graphic symbol by storing it in the second storage unit, when the drawing is output, the information of the graphic symbol is in the form of an instruction to the XY plotter. Since it is no longer necessary to convert the data into, it is possible to further reduce the time required to output the drawing.

The present invention is not limited to the above embodiment, but various modifications can be made within the scope of the invention. For example, in the above embodiment, the case where the XY plotter is used as the output device has been described.
The invention is not so limited and other types of output devices may be used. Further, in the above embodiment, the case where the conversion unit converts the information of the graphic symbol into the format of the instruction to the XY plotter and then stores the converted information in the second storage unit has been described. The conversion unit is not limited to this, and the converted information may not be stored in the second storage unit.

[0023]

As described above, according to the present invention, the conversion information obtained by previously converting the information of the predetermined graphic symbol into the format of the command to the output means is stored in the storage means. For information on the graphic symbols
Since it is not necessary to change the format of the instruction to the output means when outputting the drawing from the output means, the time required to output the drawing can be shortened as a whole, and therefore the drawing can be output from the output means in a short time. CAD that can be output
A device can be provided.

[Brief description of drawings]

FIG. 1 is a schematic block diagram of a CAD device according to an embodiment of the present invention.

FIG. 2 is a flow chart for explaining an operation when a circuit diagram is output from an XY plotter in the CAD device of this embodiment.

FIG. 3 is a flowchart for explaining an operation when a circuit diagram is output from an XY plotter in a conventional CAD device.

[Explanation of symbols]

 2 input device 4 control unit 6 display device 8 first storage unit 10 XY plotter 12 second storage unit 14 search unit 16 conversion unit 18 determination unit 20 processing unit

Claims (2)

[Claims] 1. An input unit for inputting information on a graphic symbol and connection information indicating coordinates of the graphic symbol and a connection relationship between the graphic symbols, and drawing based on the information on the graphic symbol and the connection information. Output means for outputting the drawing, a storage means for storing conversion information obtained by converting various kinds of information of the graphic symbols into a format of a command to be sent to the output means, and the conversion information stored in the storage means. Retrieval means for extracting and outputting conversion information corresponding to graphic symbol information from the storage means, information on the graphic symbol for which conversion information is not stored in the storage means, and the connection information input from the input means. And a conversion information corresponding to the information of the graphic symbol input from the input means. Is stored in the storage means, and if stored, the graphic symbol information is sent to the search means, and if not stored, the graphic symbol information is sent to the conversion means. Receiving the output signals from the judging means, the searching means and the converting means,
A CAD device comprising: a processing unit configured to combine both output signals and output the combined output signal to the output unit. 2. The CAD device according to claim 1, wherein the conversion means converts the information of the graphic symbol into a format of a command to be sent to the output means, and then stores the converted information in the storage means. .