JPH05135123A - Device for electronic circuit drawing generation and method thereof - Google Patents

Abstract

PURPOSE:To facilitate connections in a block diagram by eliminating the need for reconnection when an object to be connected is enlarged or reduced. CONSTITUTION:A drawing retrieval part 3 searches a drawing information storage part 2 for a symbol according to the coordinates which are inputted from a coordinate input part 1. When the symbol has plural connection pins, a pin decision part 4 decides which pin in the symbol is connected according to symbol data and symbol kind data stored in the drawing information storage part 2. A connection part 5 connects the start and end points. If the relation of connection with the pin of the symbol is altered as a result of this new line connection, a pin alteration part 6 updates the name of the start pin in the line data stored in the drawing information storage part 2 into an end pin name. Further, when there is no pin to be connected, coordinates are inputted again from the coordinate input part 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic circuit drawing preparation apparatus and an electronic circuit drawing preparation method for use in a CAD system or the like for connecting between connection ends of an object to be connected when an electronic circuit drawing is prepared.

[0002]

2. Description of the Related Art Conventionally, in this type of electronic circuit drawing creating apparatus, pins are set on a wiring object (hereinafter referred to as a symbol if necessary). Then, the individual pins are connected to each other.

[0003]

However, in the conventional electronic circuit drawing creating apparatus, a pin is set in the symbol,
The pins are connected to each other. For this reason, when the symbol to which the pin is attached is enlarged or reduced, the position of the pin moves and reconnection is required. Also,
When pins are not set on the drawing like the connection between blocks of the electronic circuit element, there is a drawback that drawing creation is troublesome.

An object of the present invention is to solve such a problem, to eliminate the need for re-connection when an object to be connected is enlarged or reduced, and an electronic circuit drawing preparation device which can easily connect in a block diagram. An object is to provide a method for creating an electronic circuit drawing.

[0005]

An electronic circuit drawing creating apparatus according to the present invention includes a coordinate input section for inputting coordinates of a start point and an end point to be connected, a drawing information storage section for storing drawing information, and a coordinate input from drawing information. The drawing search unit that determines the existence of the connection target object on the coordinates input from the section and searches for the connection target object if it exists, and the connection that connects according to the start point and end point coordinates input from the coordinate input unit. Department,
A connection end determination unit that determines the connected connection end when the connection target searched by the drawing search unit has a plurality of connection ends,
It is provided with a connection end updating unit that checks whether or not the connection end of the existing connection is changed by the new connection and, if it is changed, changes the connection end to a new connection end.

Further, the connection end provided on the wiring object is a signal input / output pin connected to a circuit.

Further, the electronic circuit drawing creating method of the present invention is
The existence of the connection target on the input coordinates is determined from the stored drawing information, and if it exists, the connection target is searched, and if the searched connection target has multiple connection ends, the connected connection is established. Judge the end, check whether the connection end of the existing connection has been changed by the new connection,
When it is changed, it is changed to a new connection end.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an electronic circuit drawing preparing apparatus and an electronic circuit drawing preparing method of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of the embodiment.

In FIG. 1, this example is provided with a coordinate input section 1 for inputting a start point and an end point for connection, and a drawing information storage section 2 for storing drawing information which will be described in detail below.

Furthermore, the drawing retrieval unit 3 that searches the drawing information storage unit 2 for a symbol, the pin determination unit 4 that determines which pin is connected, and the connection unit that connects the start point and the end point. 5 and a pin updating unit 6 for updating to a new connection pin name.

2A, 2B, and 2C show data stored in the drawing information storage unit 2. In FIG. 2, FIG. 2A shows symbol data, FIG. 2B shows symbol type data, and FIG. 2C shows line data. Next, the operation of this configuration will be described.

In FIG. 1, a coordinate input unit 1 inputs a start point and an end point for connecting wires. The drawing information storage unit 2 stores symbol data that is arrangement of symbols that is drawing information, symbol type data that is information for each symbol type, and line data that is connection information between symbols.

The drawing retrieval unit 3 searches the drawing information storage unit 2 with the coordinates input from the coordinate input unit 1 to retrieve a symbol. Here, when the symbol has a plurality of pins for connection, the pin determination unit 4 connects to which pin in the symbol from the symbol data stored in the drawing information storage unit 2 and the symbol type data. To determine. Also,
If there is no pin to connect, the coordinates are input again from the coordinate input unit 1.

If the drawing retrieval unit 3 has a symbol, the connection unit 5 connects the start point and the end point. That is, the line data in the drawing information storage unit 2 is updated.
When the connection relation of the symbol to the pin is changed due to the connection of the new line, the pin updating unit 6 sets the start pin name in the line data in which the new connection pin name is stored in the drawing information storage unit 2. Update to the end pin name.

Here, the connection pin name when a line is connected to a symbol is the order of the lines connected from the start to the end of the symbol line with respect to the pin name defined in the connected symbol line. I will assign it in.

Next, this operation will be specifically described.

FIG. 3 shows a concrete circuit diagram.

In FIG. 3, three symbols are arranged, and the symbol (A) 7 and the symbol (C) 9 are connected by a line (b), a line (c) and a line (d).

4 (a), (b), (c), and (d),
This drawing information is shown.

Coordinates, symbol (A) at (2, 2), symbol (B) at coordinates (17, 2), symbol (C) at coordinates (17, 8), and all three symbols are symbols (A). The symbol data in FIG. 4A indicates that the symbol data is the symbol. Further, the coordinates represent the position of the upper left corner of the symbol.

The symbol (A) has the origin at the upper left corner of the symbol, as shown in the symbol type data (b).
Coordinates (0,0) to (4,0), (4,0) to (4,4), (4,4) to (0,4) and (0,
It consists of 4 lines from 4) to (0,0).

On lines (4,0) to (4,4):
There are two pins, a pin O (O) 01 and a pin O (O) 02, and a pin I01 is provided on lines (0, 4) to (0, 0). The connection to the symbol is the line (4,
In the case of 0) to (4, 4), the connecting line with the smaller Y coordinate is pin O (O) 01, and the larger one is O (O).
Twelve.

The line (b) is from the coordinates (6, 5) to (1
2, 5) are connected to the pin O (oh) 01 and the line (c).

The line (c) is connected to the line (b) and the line (d) at coordinates (12,5) to (12,9).

Line (d) is the same as line (c) and pin I
Connected to 01.

When the line (a) is drawn here, it becomes as follows.

The start point (6, 3) and the end point (17, 3) are input from the coordinate input section 1, and the drawing retrieval section 3 receives the coordinate (6, 3).
In 3), the drawing information storage unit 2 is searched.

The search 24 takes out the symbol data in order, and takes out the X, Y coordinates and the symbol type name. The symbol type data is searched for by the symbol type name, and the X and Y coordinates of all the same symbol types are added to the start X and Y and the end X and Y of the outline line. Then, it is searched whether there is an input coordinate on this line. If it exists, it is a symbol to be connected. If not, start X, Y for all line data
From the coordinates, it is searched whether or not the input coordinates are on the end X and Y coordinates. If present, the symbol is used as the symbol of the connection target. If it does not exist, enter the start point and end point again. From the above search, it is found that the input coordinates (6, 3) are present on the outline line (4, 0)-(4, 4) of the symbol (A) 7, and this outline line is set as the connection target. .. Similarly, for the end point (17, 3), the contour line (12, 9)-(17, 9) of the symbol (B) is used as the connection target.

The pin determination section 4 firstly starts the start point coordinates (6,
In contrast to 3), when the pin name is determined, the X and Y coordinates of the symbol of the wiring target object are added to the start X and Y coordinates and the end X and Y coordinates of the symbol outline line, as well as the start and end coordinates on the drawing. The coordinates (GXS, GYS) and (GXE,
GYE). Line (GXS, GYS)-(GX
The coordinates of the line existing on (E, GYE) are obtained from the line data. The number of the obtained coordinates is set as the number of already connected Sn. When Sn + 1 exceeds the number of pins, re-input of the start point and end point and the obtained coordinates from (GXS, GYS) to (GX
E, GYE) are sorted in this order, and the input coordinate is obtained as to what number it is. The pin name m of the symbol type data with the calculated number m is set as the pin name.

According to the above judgment, the starting point coordinates are the pin name O
(Oh) 01, and the end point coordinate is connected to the pin name I01.

The connecting portion 5 has start point coordinates X, Y, end point coordinates X,
The pin name of the Y start point coordinate and the pin name of the end point coordinate are changed to the start X coordinate, Y coordinate, end coordinate, end Y coordinate, start pin name, and end pin name of the line data, respectively. The line (a) of the line data (c) of FIG. 4 corresponds to this.

When the pin determination unit 4 obtains a pin name and the obtained number m is smaller than the number of already connected Sn, the pin updating unit 6 determines the lines from the mth to the Snth among the already connected. On the other hand, the start pin name or end pin name of the line data (c) is changed from m + 1 to the Sn + 1th pin name.

In the case of line (b), the start pin name is changed to O (O) 02 as in line (b) of line data (d).

[0035]

As is apparent from the above description, the electronic circuit drawing creating apparatus and the electronic circuit drawing creating method of the present invention determine the pins to be connected based on the relationship between the object to be connected and the connection. There is an effect that reconnection when the object is enlarged or reduced can be eliminated and connection in the block diagram can be easily performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an electronic circuit drawing creation device of the present invention and a configuration to which an electronic circuit drawing creation method is applied.

FIG. 2 is a diagram showing data stored in a drawing information storage unit, which is used for explaining the operation of the embodiment.

FIG. 3 is a specific circuit diagram for explaining the operation of the embodiment and in which symbols are connected by lines.

4 (a), (b), (c) and (d) are diagrams for explaining the operation of the embodiment and showing drawing information.

[Explanation of symbols]

 1 Coordinate Input Section 2 Drawing Information Storage Section 3 Drawing Search Section 4 Pin Judgment Section 5 Connection Section 6 Pin Update Section 7 Symbols (A) 8 Symbols (B) 9 Symbols (C)

Claims (3)

[Claims] 1. A coordinate input section for inputting coordinates of a start point and an end point to be connected, a drawing information storage section for storing drawing information, and existence of an object to be connected on the coordinates input from the drawing information from the coordinate input section. And a drawing search unit that searches for the wire connection target if there is a wire connection unit that connects according to the coordinates of the start point and the end point input from the coordinate input unit, and the connection searched by the drawing search unit. When the object has a plurality of connection ends, the connection end determination unit that determines the connected connection end, and by checking the new connection, check whether the connection end of the existing connection has been changed, and if it has changed, An electronic circuit drawing creation device comprising: a connection end updating unit that changes to a new connection end. 2. The electronic circuit drawing drawing apparatus according to claim 1, wherein the connection end provided on the connection target is a signal input / output pin connected to a circuit. 3. The existence of an object to be connected on a coordinate input from the stored drawing information is determined, and if there is, the object to be connected is searched, and the searched object to be connected has a plurality of connection ends. In this case, determine the connected end,
A method for creating an electronic circuit drawing, comprising checking whether a connection end of an existing connection has been changed by a new connection and changing the connection end to a new connection end if the connection end is changed.