JPH07192030A - Circuit diagram creation device and circuit diagram creation method - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a circuit diagram creation device capable of simultaneously creating a plurality of line segment data by a simple operation. [Structure] Designating means 1 whose output side is connected to circuit diagram information storing means 2 and designates a starting point position and an end point position on a display screen, and an input side is connected to the circuit diagram storing means and the designated starting point position and the above Start point / end point coordinate calculation means 4 and 5 for calculating respective start point / end point coordinate information based on the designated end point position, and an input side connected to the start point / end point coordinate calculation means and an output side connected to the circuit diagram information storage means. A line segment creating means 8 is provided for creating a line segment that connects the start point position and the end point position based on the start point coordinate information and the end point coordinate information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device and a method for creating a circuit diagram on a display screen, and more particularly to a circuit diagram creating device and a circuit diagram creating method in a logic circuit diagram.

[0002]

2. Description of the Related Art When creating a logic circuit diagram, for example, on a display screen, line segments such as wiring are
It is created by an operation such as manually inputting the coordinates of the bending points one by one. In the case of wiring between symbol terminals, there is also a method of creating a line segment by specifying the positions of two terminals, but in that case as well, the wiring creation operation must be performed for each number of terminals. Many symbols require designers to perform a large number of repetitive tasks. In addition, when connecting line segments, a symbol such as a dot is added to the electrical connection to represent the connection point. For this work, the designer also adds a symbol by specifying the coordinates of each intersection. I have to do it. As described above, the line segment creation work is often a simple repetitive work, and is a fine and labor-intensive work that is prone to errors in coordinate designation. The present invention has been made to solve such a problem, and an object of the present invention is to provide a circuit diagram creation device and a circuit diagram creation method capable of simultaneously creating a plurality of line segment data by a simple operation.

[0003]

SUMMARY OF THE INVENTION The present invention is a circuit diagram creating apparatus for reading circuit diagram information necessary for creating a circuit diagram from a circuit diagram information storage means and creating a circuit diagram on a display screen, wherein the output side is Designating means connected to the circuit diagram information storage means and one of which designates a plurality of start point positions and end point positions on the display screen, and an input side connected to the circuit diagram storage means and the designated start point position and the above Start point / end point coordinate calculation means for calculating respective start point / end point coordinate information based on the designated end point position, an input side is connected to the start point / end point coordinate calculation means, and an output side is connected to the circuit diagram information storage means. A line segment creating means for creating a line segment connecting the start point position and the end point position based on the coordinate information and the end point coordinate information is provided.

Further, the line segment creating means compares the number of the starting point coordinate information and the number of the ending point coordinate information, and if they match, the starting point position and the ending point coordinate information indicated by the starting point coordinate information are compared. It is also possible to create a line segment that connects the indicated end point position in a one-to-one correspondence in a predetermined order.

Further, the line segment creating means compares the number of the starting point coordinate information with the number of the ending point coordinate information, and if they do not match, one of the starting point coordinate information or the ending point coordinate information is selected. A line segment is created from the coordinates to one of the end point coordinate information or the start point coordinate information, and a line is formed parallel to the created line segment from the respective coordinates indicated by the remaining start point coordinate information or the end point coordinate information. You can also create minutes.

Further, the line segment creating means compares the number of the starting point coordinate information and the number of the ending point coordinate information, and when they do not match, from each of the plurality of starting point coordinate information or the ending point coordinate information. It is also possible to create a line segment at one of the coordinates of the end point coordinate information or the start point coordinate information.

[0007]

With this configuration, the line segment creating means
If the number of the starting point coordinate information or the ending point coordinate information stored in the circuit diagram information storage means and the number of the position information of the other end forming the line segment are different from each other, create line segments parallel to each other or When it is specified to create a parallel line segment according to the specification of whether to create a line segment including a line, the missing start point coordinates or end point coordinates are calculated to create a parallel line segment.
When it is specified to create a line segment including a diagonal line, the line segment data is created by combining the coordinates stored in the circuit diagram information storage means. In this way, the line segment creating means acts so that a plurality of line segment data can be created simultaneously by a simple operation.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the circuit diagram creating apparatus of the present invention will be described below with reference to the drawings. The circuit diagram to be created is a logic circuit diagram as an example, but the circuit diagram to be created is not limited to this and can be similarly applied to a normal electric circuit diagram or the like. The designer creates a circuit diagram while arranging a symbol that is a logical symbol such as an OR circuit on a display screen, like a logic circuit diagram is created using a conventional circuit diagram creation device. A part of the logic circuit diagram created in this way is shown in FIG. The circuit diagram information designating means 1 shown in FIG. 1 is a device for designating a starting point and an ending point of a line segment to be created in a circuit diagram displayed on a display screen by using a pointing device such as a mouse. . The output side of such circuit diagram information designating means 1 is connected to the circuit diagram information storing means 2. The circuit diagram information storage means 2 can store data of all circuit diagrams displayed on the display screen, and can also store data relating to individual circuit diagram information. As a method of designating the positions of the start and end points of the line segment, one point may be designated, or one or more points may be designated to designate the range including the desired terminal among the terminals of the symbol. You may do it. The output side of the circuit diagram information storage means 2 is connected to the start point coordinate calculation means 4, the end point coordinate calculation means 5, and the display means 3.

The starting point coordinate calculating means 4 uses the symbol information stored in the circuit diagram information storing means 2 to obtain the coordinates of the position of the starting point of the line segment designated by the circuit diagram information designating means 1 if necessary. Performs the operation to acquire the coordinates of a point or multiple points. The output side of the starting point coordinate calculating means 4 is connected to the starting point coordinate storing means 6, and the starting point coordinate storing means 6 stores the coordinate data of the above-mentioned one point or a plurality of points sent by the starting point coordinate calculating means 4.

The end point coordinate calculation means 5 is similar to the start point coordinate calculation means 4 in that, if necessary, the coordinates of the end point of the line segment designated by the circuit diagram information designation means 1 are stored in the circuit diagram information storage means 2. Performs an operation of acquiring using the symbol information possessed by. The output side of the end point coordinate calculation means 5 is connected to the end point coordinate storage means 7, and the end point coordinate storage means 7 stores the coordinate data of the above-mentioned one point or a plurality of points sent by the end point coordinate calculation means 5. The output sides of the starting point coordinate calculating means 4 and the ending point coordinate calculating means 5 are connected to the line segment creating means 8.

The line segment creating means 8 compares the number of coordinates stored in the starting point coordinate storage means 6 and the ending point coordinate storage means 7, and if the numbers are the same, the starting point coordinates and the ending point coordinates are stored one by one. Create multiple line segment data by combining them in order. If the number of coordinates stored in the start point coordinate storage means 6 and the end point coordinate storage means 7 is not the same number, it is designated whether line segments that are parallel to each other or line segments that include diagonal lines are to be created, and are parallel to each other. If you specify to create different line segments, the number of parallel lines that matches the one with the largest number of coordinates is created. If you specify to create a line segment that includes diagonal lines,
The starting point coordinates and the ending point coordinates are combined one by one in the order in which they are stored, and a diagonal line is created by combining the remaining coordinates with the last coordinates. The output side of the line segment creating means 8 is connected to the circuit diagram information storage means 2, the line segment data created by the line segment creating means 8 is stored in the circuit diagram information storage means 2, and the display means 3 is also provided.
Is displayed on the display screen. The output side of the line segment creating means 8 is connected to the connection point symbol adding means 9.

The connecting point symbol adding means 9 is a line segment creating means 8
When the start point or the end point of the line segment created by is on another line segment, a symbol such as a dot indicating an electrical connection point is added to the intersection point. The output side of the connection point symbol adding means 9 is connected to the circuit diagram information storage means 2.

The operation of the circuit diagram creating device thus configured will be described below. As described above, the designer arranges the symbols on the circuit diagram on the display screen as in the conventional case. A part of one designed circuit diagram is shown in FIG. 3, but the following is an example of the case where wirings for connecting the terminals O0 to O3 of the symbol 11 and the terminals I1 to I4 of the symbol 12 to which the wirings are not connected are created. Will be explained.

At step 1 (indicated by S in the drawing) shown in FIG. 2, the starting point position, in this case, the terminal O of the symbol 11 is displayed.
Specify 0 to O3 on the display screen using a mouse or the like. When the symbol terminal is designated as the start point position, for example, by using the right button of the mouse or the like, two points C existing on the diagonal of the rectangle including the symbol terminal as shown in FIG.
This is done by inputting 1 and C2. Since the coordinate information of the terminal of the symbol is included in the database in advance, the terminals included in the rectangular range set by these two points are specified by designating the above two points. In the example shown in FIG. 3, the terminals O0 to O3 are specified by the designated points C1 and C2. Therefore, it is possible to specify an arbitrary number of terminals in the symbol by setting the rectangular range. Further, when one point is designated as the start point position, unlike the case where the symbol terminal is designated, the symbol terminal is designated by, for example, the left button of the mouse.

At step 2, it is judged whether or not the designated starting point position is related to the symbol, for example, by the difference of the input buttons used by the mouse. If it is determined that the terminal is a terminal relating to a symbol, the starting point coordinate calculating means 4 determines in step 3 the terminal position coordinates of the symbol included in the rectangular range set from the two points C1 and C2 described above in the database. The start point coordinate data is stored in the start point coordinate storage means 6 as the start point coordinates of a plurality of line segments to be created by extracting from the position coordinate information. In this case, the coordinate data of the terminals O0 to O3 is stored. On the other hand, in step 2, if the designated start point position is not related to the symbol, the process proceeds to step 4 and the data of the designated start point position is stored in the start point coordinate storage means 6 as it is.

In step 4, the end point position is designated. Also in this case, when the terminal of the symbol is designated in the same way as the designation of the starting point position described above, for example, by using the right button of the mouse or the like, two points D1 and D2 on the rectangle including the terminal of the symbol are displayed as shown in FIG. By entering. Further, when one point is designated, unlike the case where the symbol terminal is designated, the symbol terminal is designated by, for example, the left button of the mouse. In step 5, similarly to step 2, it is determined whether or not the designated end point position is related to the symbol, and if it is a terminal related to the symbol, the end point coordinate calculation means 5 in step 6 is set to the above D.
The terminal position coordinates of the symbols included in the rectangular range set from the two points 1 and D2 are extracted from the information of the terminal position coordinates included in the database in advance, and are used as the data of the end point coordinates of the plurality of line segments to be created. The end point coordinate data is stored in the end point coordinate storage means 7. In this case, the terminals I1 to I4
The coordinate data of is stored. On the other hand, in step 5, when the designated end point position is not related to the symbol, the process proceeds to step 7 and the data of the designated end point position is stored in the end point coordinate storage means 7 as it is.

In step 7, the line segment creating means 8
The start point coordinate storage means 6 and the end point coordinate storage means 7 are accessed to compare the number of the start point coordinate data and the number of the end point coordinate data stored in the start point coordinate storage means 6 and the end point coordinate storage means 7. When the number of start point coordinate data and the number of end point coordinate data match, in step 10, the line segment creating means 8
Creates a line segment connecting the start point coordinate data and the end point coordinate data stored in the start point coordinate storage means 6 and the end point coordinate storage means 7. On the other hand, when the number of start point coordinate data and the number of end point coordinate data do not match, the designer specifies in step 8 whether to create line segments parallel to each other or line segments including diagonal lines.

When it is specified in step 8 that line segments parallel to each other are to be created, the line segment creating means 8 determines in step 9 the parallel line segment according to the larger number of start point coordinate data or end point coordinate data. Is calculated as supplementary start point coordinate data or supplemental end point coordinate data, respectively.
Line segments parallel to each other are created based on the start point coordinate data or the end point coordinate data and the supplementary start point coordinate data or the supplementary end point coordinate data. An example of this case is shown in FIG. Figure 4
Then, although there is only one point A as the end point coordinate, four parallel line segments are drawn based on the terminals O0 to O3 at the start point.

If the designer specifies in step 8 that a line segment including an oblique line is to be created, then in step 10, the line segment creation means 8 is stored in the start point coordinate storage means 6 and the end point coordinate storage means 7. A line segment connecting the starting point coordinate data and the ending point coordinate data is created. An example of this case is shown in FIG. Although the end point is only one point B in FIG. 5, there may be a plurality of end points. Even in this case, for example, the operation of step 10 is performed for the end point B1, and similarly, the operation of step 10 is performed for the end point B2.

Further, in step 11, when the starting point or the ending point of the created line segment is on another line segment, the connection point symbol adding means 9 causes the electrical connection in these line segments as shown in FIG. A symbol such as a dot indicating a point is added.

In this way, when, for example, creating a logic circuit diagram on the display screen, a plurality of line segments can be created simultaneously by designating the terminal portions of the symbols.
The amount of work for creating line segments can be reduced and wiring mistakes can be eliminated. Taking the circuit diagram of FIG. 3 as an example, the conventional method is O0-I.
To create the wiring between 1, first specify the end point of O0,
Next, in order to specify the end point of I1, it is necessary to specify two points. That is, when connecting the four terminals, the work of designating at least eight points is required. In the apparatus of this embodiment, for example, designation of two points C1 and C2 on a rectangle including terminal portions of O0 to O3 and designation of two points D1 and D2 on a rectangle including terminal portions of I1 to I3, for example, four times in total. It is possible to connect the four terminals to each other only by the designation work of. In this case, a simple calculation can double the efficiency,
It is clear that the effect increases as the number of terminals increases.

Further, since a plurality of line segments can be created at the same time by designating a plurality of terminals which are, for example, a start point of a symbol and one point which is, for example, an end point, the amount of work for creating line segments can be reduced, In addition, wiring mistakes can be eliminated.
Taking the circuit diagram of FIG. 4 as an example, conventionally, in order to create a wiring connected to the terminal O0, it is necessary to first specify the end point of the terminal O0 and then to specify the point A, thus specifying two points in total. . In other words, when creating a wiring to be connected to four terminals, at least eight points must be specified. In the apparatus of the present embodiment, for example, four wirings can be created by designating two points C1 and C2 on a rectangle including terminal portions of O0 to O3 and designating point A only three times. In this case, the efficiency can be increased by 8/3 by simple calculation, but it is clear that the effect increases as the number of terminals increases. In addition, if line segments are created one by one as in the conventional art, the positions of the end points of the line segments are likely to fall apart, and careful attention is required to create line segments by aligning the end points. You can create a line segment with the same end point.

Taking the circuit diagram of FIG. 5 as an example, conventionally, in order to create a wiring connected to the terminal O0, the end point of the terminal O0 is first designated, and then the B point is designated, two points are designated. is necessary. In other words, when creating a wiring to be connected to four terminals, at least eight points must be specified.
In this embodiment, for example, four wirings can be created by only three designation operations of designating two points C1 and C2 and a point B on a rectangle including terminal portions of O0 to O3. In this case, the efficiency can be increased by 8/3 by simple calculation, but it is clear that the effect increases as the number of terminals increases. Further, if line segments are created one by one as in the conventional art, the positions of the end points of the line segments are likely to be disjointed, and it is necessary to pay close attention to create line segments with one common point as the end point. Then, it is possible to automatically create a line segment with one common point as the end point.

When connecting line segments, a connection point symbol representing an electrical connection such as a dot is added to the intersection to represent the connection point. To this end, the coordinates of each connection point are specified. You must add a symbol. This is a fine and labor-intensive task that is prone to mistakes in coordinate specification. In the present embodiment, since the connection point symbol is automatically added to the electrical connection point generated as a result of automatically creating a plurality of line segments, such a problem can be solved.

[0025]

As described above in detail, according to the present invention, a line segment that connects the starting point position and the ending point position is created based on the starting point coordinate information and the ending point coordinate information. Multiple line segment data can be created at the same time.

According to the inventions of claims 3 and 4,
When the number of pieces of start point coordinate information and the number of pieces of end point coordinate information stored in the circuit diagram information storage means are different, designation of whether to create line segments parallel to each other or to create line segments including diagonal lines By automatically creating the line segment according to
Multiple line segment data can be created simultaneously by a simple operation.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a circuit diagram creation device of the present invention.

FIG. 2 is a flowchart showing an operation of the circuit diagram creation device shown in FIG.

FIG. 3 is a diagram for explaining a case where input / output terminals between symbols are connected in the circuit diagram creation device shown in FIG.

FIG. 4 is a diagram for explaining a case where terminals of a symbol and predetermined points are connected by parallel lines in the circuit diagram creation device shown in FIG. 1.

5A and 5B are diagrams for explaining a case where terminals of symbols and predetermined points are connected by diagonal lines in the circuit diagram creation device shown in FIG.

FIG. 6 is a diagram for explaining a case where a connection point symbol is attached to an intersection of a line segment extending from a symbol terminal and another line segment in the circuit diagram creation device shown in FIG. 1.

[Explanation of symbols]

1 ... Circuit diagram information designating means, 2 ... Circuit diagram information storing means, 3
... display means, 4 ... start point coordinate calculation means, 5 ... end point coordinate calculation means, 6 ... start point coordinate storage means, 7 ... end point coordinate storage means,
8 ... Line segment creating means, 9 ... Connection point symbol adding means.

Claims (10)

[Claims] 1. A circuit diagram creation device for reading circuit diagram information required for circuit diagram creation from circuit diagram information storage means and creating a circuit diagram on a display screen, wherein an output side is connected to the circuit diagram information storage means. Based on the designated start point position and the designated end point position, the input side is connected to the circuit diagram storage means, and the designation means for designating a plurality of start point positions and end point positions on the display screen. Of the starting point and ending point coordinate information, and the input side is connected to the starting point and ending point coordinate calculating means and the output side is connected to the circuit diagram information storing means to obtain the starting point coordinate information and the ending point coordinate information. A circuit diagram creation device comprising: a line segment creation means for creating a line segment that connects the start point position and the end point position based on the above. 2. The line segment creating means compares the number of the start point coordinate information with the number of the end point coordinate information, and when they match, the start point position and the end point coordinate information indicated by the start point coordinate information are The circuit diagram creation device according to claim 1, wherein a line segment that connects one-to-one with each of the indicated end point positions is created in a predetermined order. 3. The line segment creating means compares the number of the start point coordinate information with the number of the end point coordinate information, and if these do not match, one of the start point coordinate information or the end point coordinate information is selected. A line segment is created from the coordinates to one of the end point coordinate information or the start point coordinate information, and a line is formed parallel to the created line segment from the respective coordinates indicated by the remaining start point coordinate information or the end point coordinate information. The circuit diagram creation device according to claim 1 or 2, which creates minutes. 4. The line segment creating means compares the number of the start point coordinate information with the number of the end point coordinate information, and when they do not match, from each of the plurality of the start point coordinate information or the end point coordinate information. 3. The circuit diagram creation device according to claim 1, wherein a line segment is created at one coordinate of the end point coordinate information or the start point coordinate information. 5. An input side is connected to the line segment creating means, an output side is connected to the circuit diagram storing means, and a start point or an end point of the line segment created by the line segment creating means coincides with another line segment. 5. The circuit diagram creating device according to claim 1, further comprising connection point symbol adding means for attaching a connection point symbol to an electrical connection point between the start point or the end point and the other line segment. 6. A circuit diagram creating method for reading circuit diagram information necessary for creating a circuit diagram from the circuit diagram information storage means and creating a circuit diagram on the display screen, wherein any one of the plurality of circuit diagram information is displayed on the display screen. Specifying step of the starting point position and the ending point position, and the starting point and ending point coordinate calculating step of calculating the starting point coordinate information and the ending point coordinate information based on the specified starting point position and the designated ending point position, respectively, and the starting point coordinate A circuit diagram creating method comprising: a line segment creating step of creating a line segment connecting the start point position and the end point position based on information and the end point coordinate information. 7. The line segment creating step compares the number of the starting point coordinate information and the number of the ending point coordinate information, and if they match, the starting point position and the ending point coordinate information indicated by the starting point coordinate information are compared. 7. The circuit diagram creation method according to claim 6, wherein line segments connecting each of the indicated end point positions in a one-to-one correspondence are created in a predetermined order. 8. The line segment creating step compares the number of the starting point coordinate information and the number of the ending point coordinate information, and if they do not match, one of the starting point coordinate information or the ending point coordinate information is selected. A line segment is created from the coordinates to one of the end point coordinate information or the start point coordinate information, and a line is formed parallel to the created line segment from the respective coordinates indicated by the remaining start point coordinate information or the end point coordinate information. The circuit diagram creation method according to claim 6 or 7, wherein minutes are created. 9. The line segment creating step compares the number of the starting point coordinate information with the number of the ending point coordinate information, and if they do not match, the starting point coordinate information or the ending point coordinate information respectively determines the ending point. 8. The circuit diagram creating method according to claim 6, wherein a line segment is created at one coordinate of the coordinate information or the starting point coordinate information. 10. When the start point or the end point of the line segment created in the line segment creating step coincides with another line segment, the connection point is connected to the electrical connection point between the start point or the end point and the other line segment. 10. The circuit diagram creating method according to claim 6, further comprising a connecting point symbol adding step of adding a dot symbol.