JPH08202753A - Automatic wiring correcting method for circuit diagram - Google Patents

Abstract

PURPOSE: To correct the wiring state of a signal line into an optimum form at high speed when correcting the position relation of circuit diagram components such as parts or signal lines for a circuit diagram editor preparing tool on a computer. CONSTITUTION: This method is provided with a simplified wiring pattern searching procedure S106 for retrieving a wiring pattern corresponding to the externally designated number of times of folding inside the area with the end points of a net cut by a moving object excluding procedure S103 as diagonals, entire wiring pattern searching procedure S107 for searching the wiring pattern with an entire drawing as an object concerning wiring that can not be searched by the simplified wiring pattern searching procedure S106, and wiring procedure S108 for generating the signal lines according to the wiring patterns searched by the simplified wiring pattern searching procedure S106 and the entire wiring pattern searching procedure S107.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic wiring correction method for a circuit diagram, and more particularly to a method for correcting the positional relationship of circuit diagram constituent elements such as parts and signal lines to a circuit diagram editor creation tool on a computer. The present invention relates to a circuit wiring automatic correction method for automatically correcting the wiring state of a line.

[0002]

2. Description of the Related Art In the conventional circuit wiring automatic correction method,
When one end of the signal line is moved, the wiring pattern is searched with each bending point existing on the path immediately before the other end as an end point, and the optimum pattern is selected from the searched wiring patterns. Was becoming. (For example, refer to Japanese Patent Laid-Open No. 05-165907.) Further, in the conventional circuit diagram editor creation tool, a fixed wiring pattern is created without considering the surrounding conditions of the surrounding parts and signal lines, and the wiring pattern is bent. The point was made to be decided manually.

[0003]

In the conventional automatic wiring correction method for a circuit diagram, when one end of a signal line is moved, each bending point existing on the path immediately before the other end is used as an end point for the wiring pattern. It is designed to select the optimum wiring pattern from the searched wiring patterns, and it is not possible to determine which bending point is the optimum wiring pattern before the wiring pattern search. . The problem to be solved by the present invention is to shorten the time for correcting the wiring pattern by performing this determination before searching for the wiring pattern, fixing one end at one bending point, and then searching for the wiring pattern.

Further, in the conventional circuit diagram editor creation tool, since a fixed wiring pattern is created without considering the arrangement of surrounding parts and signal lines, signal lines in the same direction may overlap with each other, or signal lines in the same direction may overlap. The wire passed over the pins of the component and could not be modified to the proper wiring pattern. For this reason, conventionally, it was not possible to achieve both high speed and appropriate correction.

[0005]

In the automatic wiring correction method for a circuit diagram of the first invention, a wiring correction pattern is divided into a simple pattern and a complicated pattern to be searched.

A circuit diagram automatic wiring correction method according to a second aspect of the present invention is a moving object determining procedure for determining a circuit diagram constituent element to be moved in the circuit diagram, a moving position determining procedure for determining a position after movement, and a moving procedure. A moving object deleting procedure for deleting an object from a position before moving, a signal line deleting procedure for deleting a signal line existing in a circumscribed rectangle including before and after moving the moving object, and after moving the moving object And a simple wiring pattern search that searches the wiring pattern with the number of bends specified from the outside in the area where the nets cut in the above-mentioned moving object deletion procedure are diagonally crossed Procedure, an overall wiring pattern search procedure for searching a wiring pattern for the entire drawing for a wiring that could not be searched by the simple wiring pattern search procedure, and the simple wiring pattern search Configured to include a wiring procedure for generating a signal line according to the wiring pattern searched in this order, and the entire wiring pattern search procedure.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the drawings.

FIG. 1 is a flow chart showing an embodiment of the present invention. 2 to 7 are diagrams showing examples searched in the simple wiring pattern search procedure of FIG. 1, and FIGS. 8 to 11 are diagrams showing examples searched in the overall wiring pattern search procedure of FIG.
First, an automatic wiring correction method for the circuit diagram shown in FIG. 1 will be described.

In the moving object determining step S101, the circuit diagram constituent element whose positional relationship is to be changed is determined, and the moving position determining step S1.
Go to 02. In S102, the position of the circuit diagram constituent element determined in S101 after movement is determined, and the movement target deletion procedure S
Go to 103. In S103, the circuit diagram constituent element determined in S101 is deleted from the position of the movement source, and the process proceeds to the signal line deletion procedure S104. In S104, regarding the net connected to the circuit diagram constituent element determined in S101, the circumscribed rectangle of the circuit diagram constituent element before the positional relationship change and the circumscribed rectangle after the change are inscribed from the signal line of the connection destination of the circuit diagram constituent element. In the erasure area of the circumscribing rectangle included in (1) to the signal line that first protrudes, or before connecting to another circuit diagram component in the erasure area, that signal line is erased. As a unit of a signal line to be erased, one signal segment is used until the signal line is bent or is connected to another circuit diagram constituent element without being bent, and the signal line is erased in units of one segment. However,
The signal line of the first segment from the connection destination of the circuit diagram constituent element is surely erased, and the signal line of which the second segment signal line exists and is not branched is surely erased. The procedure proceeds to the moving object generation procedure S105. In S105, the circuit diagram constituent element determined in S101 is generated at the position after the movement determined in S102, and the process proceeds to the simple pattern generation procedure 106. In step S106, the end points of the nets cut in steps S103 and S104 are searched for in the simple pattern search area with the end points being diagonal, which can be wired with a wiring pattern within the number of bends specified from the outside. For the net for which the wiring pattern could not be detected in S106, the wiring pattern is searched in the wiring pattern search procedure S107 for the entire drawing without limiting the number of bendings between the end points of the net. When the wiring patterns have been detected in S106 and S107 for all the nets cut in S103, the wiring procedure proceeds to S108. In S108, S
106, a signal line is generated based on the wiring pattern detected in S107.

Next, in the case of moving the part A of FIG. 2 to the position of A1, an example of automatic wiring correction in which the number of bends searched for in S106 is designated as 2 will be described. S10
When the component A is determined in step 1, the position of the moving destination of the component A is determined in step S102, and the component A is deleted in step S103, the result is as shown in FIG. In S104, the erased area of the signal line is within the thick frame of FIG. 4, so the N01 pin of the part A to the H01 of the part B
After erasing all the signal lines connected to the pins, S10
When the component A is generated at the position of the movement destination by 5, the result is as shown in FIG. In step S106, the pin N01 of the component A is changed to the pin H0 of the component B.
When a wiring pattern up to 1 pin is searched for in the simple pattern search area of FIG. 6, a wiring pattern with one bending as shown in FIG. 7 is detected, and a signal line is generated according to the wiring pattern detected in S106 in S108.

Next, an example of automatic wiring correction when the same movement as in FIG. 2 is performed when an obstacle exists as shown in FIG. 8 will be described. Steps S101 to S105 are the same as those in FIG. Even if the wiring pattern from the N01 pin of the component A to the H01 pin of the component B is searched for in the area indicated by the bold line in FIG. 9 in S106, the wiring pattern is not detected, so the process proceeds to S107. In S107, the wiring pattern from the N01 pin of the component A to the H01 pin of the component B is searched for in the entire circuit diagram. Before moving the part A, the signal line was protruding from the N01 pin of the part A to the right, so first,
When the wiring pattern is searched from the right side of the N01 pin of the part A, the search direction is changed downward at a point equal to the X coordinate of the part B, and a step just before the obstacle is searched, a wiring pattern as shown in FIG. 10 is obtained. . Here, although the search direction is divided into right and left, the right direction is searched because the X coordinate of the point at which the right side can move vertically next is closer to the X coordinate of the H01 pin of the part B. After that, the search direction is changed downward from the point that can be moved in the vertical direction, and the direction is changed leftward one step before the circumscribed rectangle of the part B, and the direction is downward at the point equal to the X coordinate of the H01 pin of the part B. Proceed to the H01 pin of component B, and detect the wiring pattern. When signal lines are generated in accordance with the wiring pattern detected in 108 in 108, the result is as shown in FIG.
In this way, the wiring can be automatically corrected.

[0012]

According to the method of automatically correcting the wiring of the circuit diagram of the present invention,
Since both end points of the wiring pattern to be searched are fixed at appropriate positions by using the erasing area and then the wiring pattern is searched, automatic wiring correction can be performed at a higher speed than in the conventional invention. Furthermore, by searching the correction pattern by dividing it into two types, that is, a simple pattern and a complicated pattern, it is possible to achieve speedup and an appropriate correction result when the change in the positional relationship of the circuit diagram components is small. There is an effect that an appropriate correction result can be realized even when the positional relationship of the constituent elements is largely changed.

In the circuit diagram creation using the circuit diagram editor,
Often the change in the positional relationship of circuit diagram components is small,
Since most of them can detect a wiring pattern by a simple pattern search, the efficiency of circuit diagram creation can be improved by using the present invention.

[Brief description of drawings]

FIG. 1 is a flow chart showing an embodiment of the present invention.

FIG. 2 is a diagram showing a first usage example of the present invention.

FIG. 3 is a diagram showing a first usage example of the present invention.

FIG. 4 is a diagram showing a first usage example of the present invention.

FIG. 5 is a diagram showing a first usage example of the present invention.

FIG. 6 is a diagram showing a first usage example of the present invention.

FIG. 7 is a diagram showing a first usage example of the present invention.

FIG. 8 is a diagram showing a second use example of the present invention.

FIG. 9 is a diagram showing a second usage example of the present invention.

FIG. 10 is a diagram showing a second usage example of the present invention.

FIG. 11 is a diagram showing a second usage example of the present invention.

[Explanation of symbols]

 1 Erasing area 2 Simple pattern search area 3 Obstacles A parts B parts

Claims (2)

[Claims] 1. An automatic wiring correction method for a circuit diagram, wherein a wiring correction pattern is divided into a simple pattern and a complicated pattern for searching. 2. A moving object deciding procedure for deciding a circuit diagram constituent element to be moved in a circuit diagram, a moving position deciding procedure for deciding a position after the movement, and a moving object for erasing the moving object from the position before the movement. A deleting procedure, a signal line deleting procedure of deleting a signal line existing in a circumscribing rectangle including a moving object before and after the moving object, a moving object generating procedure of generating the moving object at a position after the moving, and It can be searched by the simple wiring pattern search procedure that searches the wiring pattern with the number of bends specified from the outside in the area diagonally intersecting the end points of the net cut by the move target deletion procedure and the simple wiring pattern search procedure. The entire wiring pattern search procedure for searching the entire drawing for the missing wiring, the simple wiring pattern search procedure, and the overall wiring pattern search procedure. And a wiring procedure for generating signal lines according to the searched wiring pattern.