JPH06325116A - Cad system - Google Patents

Abstract

PURPOSE:To speedily confirm the connection state of a line and to store the confirmation result by providing a connection retrieval means which extracts a line in connection relation with an indicated line and a line data altering means which alters data state regarding the extracted line. CONSTITUTION:Once the line whose connection is to be confirmed is selected by indicating the line on a CAD drawing with a mouse 1, the connection retrieval means 6 retrieves lines connected to the selected line in order to extract all the lines in the connection relation. After the connection retrieval means 6 retrieves and extracts all the connected lines, the line data altering means 9 changes the colors of the indicated line and the retrieved and extracted lines in order. Consequently, all the lines connected to the indicated line are changed in color in order and displayed on a CRT 3 by selecting the line whose connection is to be confirmed. Further, the colors are changed by altering CAD drawing data, so the confirming operation is left as a record.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD system for checking the connection state of lines in a CAD drawing in which symbols are connected by lines.

[0002]

2. Description of the Related Art FIG. 7 is a configuration diagram showing a configuration of a conventional CAD system. 1 is a mouse which is a pointing device, 2 is a keyboard for inputting data and the like, 3 is a CRT which displays CAD drawings and data, and 4 is drawing and generation of figures by data input from the keyboard 2 and instructions from the mouse 1 Drawing means 5 is an editing means 6a for moving, deforming, or erasing a generated figure or a part of a created CAD drawing, etc., in response to data input from the keyboard 2, instructions from the mouse 1 or the like. Is a connection search means for detecting the connection state of the graphic element designated by the mouse 1 or the keyboard 2 with another graphic element, 7 is an external storage unit for holding the created CAD drawing, and 8 is the created CAD It is a file management unit that stores drawings in the external storage unit 7 and retrieves CAD drawings stored in the external storage unit.

Next, the operation will be described. In this CAD system, an instruction input by moving the pointer on the CRT 3 using the mouse 1 and the keyboard 2
The drawing means 4 generates a figure such as a rectangle, a circle, or a line in response to an instruction by inputting coordinates. Similarly, the editing means 5 erases or moves the figure or the area on the CAD drawing designated by moving the pointer on the CRT 3 using the mouse 1 or the like by an input instruction from the keyboard 2.

The operation for confirming the connection state of each line of the CAD drawing created in this CAD system will be described below. Here, in the CAD drawing, each symbol is connected by various lines. First, the file management unit 8 is started by input from the keyboard 2,
A CAD drawing file stored in the external storage unit 7 is read. At this time, the file names of the CAD drawings stored in the external storage unit 7 are displayed on the CRT 3, and the file management unit 8 causes the external storage unit 7 to operate by pointing the mouse 1 to the desired one. The CAD drawing corresponding to the file name designated by the command is taken out.

Next, the connection retrieval means 6a is activated in response to an input instruction from the keyboard 2 to establish a connection confirmation state, and the mouse 1 is used to indicate the line for which the connection is to be confirmed on the extracted CAD drawing. Select the line.
As a result, the connection search means 6a searches and extracts the line connected to the selected line. Here, when the mouse 1 is moved, this line designated by the mouse 1 moves on the CRT 3 in accordance with the movement of the mouse 1, and the line connected to this line fixes the other end which is not connected. It deforms and moves in a state. As described above, when the line designated by the mouse 1 is moved by moving the mouse 1, the line connected to this line also moves on the CRT 3, so the connection state between the designated line and the adjacent line Can be confirmed.

[0006]

Since the conventional CAD system is configured as described above, there is a problem that the confirmation of the connection state does not remain on the CAD drawing (on the data). In addition, since there are many line connections, it is necessary to move and check each line in order to check all of these connections, which is a problem in that it takes a huge amount of time.

The present invention has been made in order to solve the above problems, and an object of the present invention is to make it possible to confirm the connection state of a wire quickly and to leave the confirmed result.

[0008]

In a CAD system of the present invention, a line connected to a designated line and a line connected to the designated line via another line in a CAD drawing are defined. A connection search means for sequentially searching and extracting a line having a connection relationship with the instructed line, and a line data changing means for changing the data state of the instructed line and the line extracted by the connection search means. In addition, the present invention is characterized by having a symbol connection state detecting means for detecting a connection state between the symbol and the line where the extracted line hits. Further, it is characterized by further comprising display changing means for changing the display state of the line whose data state has been changed by the line data changing means. Further, it is characterized in that it has a connection symbol data changing means for changing the data state of the symbol whose connection is confirmed by the symbol connection state detecting means.

[0009]

The data state of all connected devices is changed, and the display state is changed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Example 1. In FIG. 1, 6 is a mouse 1 and a keyboard 2.
Is a connection search means for sequentially detecting the connection state between the line designated by and until another symbol is reached, and 9 is a line data change means for changing the display color of the line searched by the connection search means 6. Others are the same as in FIG. 7.

Next, the operation of confirming the connection state of the lines in this CAD system will be described with reference to the flowchart of FIG. First, the file management unit 8 is activated by an input from the keyboard 2 to bring the CAD drawing file stored in the external storage unit 7 into a read state. At this time,
The file names of the CAD drawings stored in the external storage unit 7 are displayed on the CRT 3, and the file management unit 8 is instructed by the external storage unit 7 by pointing the desired one of these with the mouse 1. A CAD drawing corresponding to the file name is extracted (step S1). When the extracted CAD drawing is displayed on the CRT 3 (step S2), the connection retrieval means 6 is activated by the input instruction from the keyboard 2 to bring the connection confirmation state (step S3).

Next, when the line to be confirmed for connection is selected by pointing the mouse 1 to the line whose connection is to be confirmed on the extracted CAD drawing (step S4), the connection retrieval means 6 connects to the selected line. The lines that are connected are sequentially searched, and all lines that have a connection relationship are extracted (step S
5). When all the lines connected by the connection search means 6 are searched and extracted, the line data changing means 9 sequentially changes the colors of the instructed line and the searched and extracted line (step S6). As described above, by selecting the line whose connection is to be confirmed, all the lines connected to this line are sequentially changed in color and displayed on the CRT 3. Also, this change is CAD
Since the drawing data has been changed, the confirmation work will be recorded.

Example 2. FIG. 3 is a configuration diagram showing the configuration of a CAD system which is a second embodiment of the present invention. In the figure, reference numeral 10 is a symbol connection state detecting means for detecting the connection state of the symbol reached by the connection retrieval means 6 through search and extraction with other lines including the line reaching this symbol, and Is the same as in FIG.

When the line sequentially searched and extracted by the connection search unit 6 reaches a symbol, the symbol connection state detection means 10 confirms the connection state between this symbol and the searched line, and additionally connects with this symbol. Detect other lines that are running. If the line that was searched for and reached this symbol is connected to this symbol, and another line is connected to this symbol, the line that was searched and reached this symbol is connected to this symbol. It is registered in the connection search means 6 that the other connected line is connected.

As a result, the connection retrieval means 6 retrieves and extracts all the lines connected via the symbols even if they are not directly connected. Then, all the lines searched and extracted by the connection search means 6 are changed in color by the line data changing means 9. As described above, the color of the lines connected via the symbol is also changed and displayed on the CRT 3, so that all the connection states on the CAD drawing can be confirmed by selecting one line. it can.

Embodiment 3. By the way, when there are two lines that reach the symbol but are not connected, for example, lines A and B, if the line A and the line B are connected by another route without using this symbol, According to the CAD system of the second embodiment, the lines A and B are displayed in different colors.
On the other hand, even if the lines C and D that reach the symbol and are connected to each other are connected via this symbol but are not connected via another route, the CAD system according to the second embodiment can For example, the colors of the line C and the line D are changed and displayed. In this case, the connection between the symbol and the line cannot be confirmed.

FIG. 4 is a block diagram showing the configuration of a CAD system according to the third embodiment of the present invention, which has solved the above problems. In the figure, reference numeral 11 indicates that, when the line sequentially searched and extracted by the connection search means 6 reaches a symbol, the symbol connection state detection means 10 detects that the line and the symbol are connected, This is the connection symbol data changing means for detecting the position of this symbol in the CAD drawing and marking this position, and is otherwise similar to FIG. In the CAD system according to the fourth embodiment, the symbol connected to the line reached by the search by the connection search unit 6 is marked by the connection symbol data changing unit 11, so that the connection state between the symbol and the line is reliable. Can be confirmed, and the above two states can be distinguished.

Example 4. FIG. 5 is a configuration diagram showing a configuration of a CAD system which is a fourth embodiment of the present invention. In the figure, reference numeral 12 is a display changing means for changing the display state of the CAD drawing so that the reached symbol is displayed at the center of the CRT 3 when the line whose color is changed by the line data changing means 9 reaches the symbol. Yes, others are the same as in FIG.

In a large CAD drawing, when each symbol or the like is displayed on the CRT 3 in a size that can be clearly confirmed, the entire CAD drawing cannot be displayed on the CRT 3. Therefore, in this state, C in the CAD drawing
The entire area of the CAD drawing cannot be observed unless the area displayed on the RT3 is moved or switched. Here, if the line searched by the connection search means 6 exceeds the area displayed on the CRT 3, all the connected lines displayed with the color changed are not displayed on the CRT 3. It will be. However, in the CAD system of this embodiment, when the line whose color has been changed reaches the symbol by the CRT changing means 12, the display area on the CRT 3 of the CAD drawing is changed so that the symbol is displayed at the center of the CRT 3. Therefore, it is easy to check all the connected lines.

Example 5. In the above-described first embodiment, the connected line is changed in color so as to be highlighted, but the present invention is not limited to this. FIG. 6 is a configuration diagram showing a configuration of a CAD system which is a fifth embodiment of the present invention.
In the figure, 13 is a line display changing means for preventing the line data changing means 9 from displaying the line whose color has been changed on the CRT 3, and is otherwise similar to FIG. In the CAD system of this embodiment, since the connected lines are not displayed on the CRT 3, only the unconnected lines remain on the CRT 3 and the line connection state can be confirmed at a glance. Although the connected line is not displayed in the fifth embodiment, the present invention is not limited to this, and the connected symbol may not be displayed.

[0021]

As described above, according to the present invention, in a CAD drawing in which symbols are connected by lines, 1
By selecting one line, all the connected lines are displayed with their states changed, so that it is possible to quickly confirm the connection. Further, since the data state of the connected lines and symbols is changed, there is an effect that the confirmation result is recorded.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a configuration of a CAD system that is Embodiment 1 of the present invention.

FIG. 2 is a flowchart showing an operation of the CAD system shown in FIG.

FIG. 3 is a configuration diagram showing a configuration of a CAD system which is a second embodiment of the present invention.

FIG. 4 is a configuration diagram showing a configuration of a CAD system that is Embodiment 1 of the present invention.

FIG. 5 is a configuration diagram showing a configuration of a CAD system that is Embodiment 1 of the present invention.

FIG. 6 is a configuration diagram showing a configuration of a CAD system that is Embodiment 1 of the present invention.

FIG. 7 is a block diagram of a conventional CAD system.

[Explanation of symbols]

 1 mouse 2 keyboard 3 CRT 4 drawing means 5 editing means 6 connection searching means 7 external storage section 8 file management section 9 line data changing means

Claims (4)

[Claims] 1. A CAD system for designing a CAD drawing in which symbols are connected by lines by a computer, in a CAD drawing, a line connected to an indicated line and a line connected to the indicated line and another line. A connection search unit that sequentially searches for lines that are in a connected state and extracts a line that has a connection relationship with the instructed line, and changes the data state of the instructed line and the line extracted by the connection retrieval unit. And a line data changing unit for performing the CAD system. 2. The CAD system according to claim 1, further comprising a symbol connection state detecting means for detecting a connection state between the symbol and the line where the extracted line hits. 3. The CAD system according to claim 1, further comprising a display changing unit that changes a display state of the line whose data state has been changed by the line data changing unit. 4. The CAD system according to claim 2, further comprising connection symbol data changing means for changing a data state of a symbol whose connection is confirmed by the symbol connection state detecting means.