JPH0548049U - Board CAD system - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object to realize a board CAD system with improved operability of enlarged display. [Structure] In a board CAD system having an enlargement display function, a point of interest mark is displayed on a portion where enlargement display is performed on a screen displaying a printed board. When the point-of-interest mark is pointed by the pointing means, the flag data linked with the point-of-interest mark pointed to is read from the flag table, and enlarged display is performed based on this flag data. Further, a point of interest mark is also displayed on the enlarged screen.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a board CAD system that supports the design of printed boards. More specifically, it relates to improvement of operability of a board CAD system having a function of enlarging and displaying a part of a printed board displayed on a screen.

[0002]

[Prior Art]

 Conventionally, some board CAD systems having a magnified display function perform magnified display by the procedure shown in FIG. 6, for example. That is, as shown in FIG. 6A, in the screen where the entire printed board P is displayed, the area to be enlarged is surrounded by a frame, and each frame is numbered and displayed. Here, the area surrounded by each frame is stored. On such a display screen, by designating the number attached to the frame, the portion surrounded by the designated frame is enlarged and displayed. For example, when the frame number 4 is designated, the image in the frame number 4 is enlarged and displayed as shown in FIG. 6B.

In a board CAD system that performs such a screen display, since the points of interest that indicate the area to be enlarged are numbers, it is difficult to find the points of interest when the component density or wiring pattern density of the printed board increases. There was a problem that the operability deteriorated.

[0004]

[Problems to be solved by the device]

 The present invention has been made to solve such a problem, and makes the point of interest easy to identify on the display screen of the printed board and links the point of interest with the data used for the enlarged display processing. By displaying the mark of the point of interest also on the enlarged display screen, the object is to realize a board CAD system with improved operability of enlarged display.

[0005]

[Means for Solving the Problems]

 The present invention, in a board CAD system having a function of enlarging and displaying a part of a printed board displayed on a screen, displays a point of interest mark on a portion of the printed board displayed on the screen that is enlarged. Display means, a flag table in which the number of attention point marks is stored with flag data that associates the attributes of the attention point marks with the data used in the enlarged display processing, and an instruction means for instructing the attention point marks, When the point-of-interest mark is pointed by the pointing means, the flag data used for enlargement display processing is read from the flag table based on the attribute of the point-of-interest mark pointed to, and enlarged based on the read flag data A board CAD which is provided with an enlarged image display means for displaying and displaying an instructed point mark on the enlarged display screen. It is a stem.

[0006]

[Action]

 In the present invention as described above, the point of interest mark is displayed on the portion where enlarged display is performed on the screen displaying the printed board. When the point-of-interest mark is instructed by the instructing means, the flag data linked to the point-of-interest mark instructed is read from the flag table, and enlarged display is performed based on this flag data. In addition, the point-of-interest mark you indicated is also displayed in the enlarged screen.

[0007]

【Example】

 The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, 1 is an input device, 2 is an output device, 3 is a storage device, and 4 is a computer.

In the input device 1, 11 is a graphic input section for inputting graphic data of a printed board to be designed, 12 is a keyboard for inputting data for designing the printed board, and 13 is provided on the keyboard 12. Is a pointing means for pointing a point of interest mark on the display screen.

In the output device 2, reference numeral 21 is a display unit on which a printed board to be designed is displayed.

In the storage device 3, reference numeral 31 denotes a database storage unit, which stores CAD-specific graphic data including graphic elements and character information, wiring pattern connection information, and the like. Reference numeral 32 denotes a flag table, which stores information on the flag that has become the point of interest mark. The flag is a mark in the shape of a flag. The flag table 32 has the memory configuration shown in FIG. As shown in FIG. 2, N sets of flag data are stored in the flag table, each of which is a set of flag attributes, flag coordinate values, and coordinate values of the lower left and upper right vertexes of the rectangular enlarged display area. Has been done. In the case of FIG. 2, the flag attribute is a number.

Returning to FIG. 1, in the computer 4, reference numeral 41 denotes a control unit, which controls storage of graphic data input from the graphic input unit 11 in the storage device 3 and display on the display unit 21. Reference numeral 42 is a point-of-interest display means for displaying the point-of-interest by a flag on the screen displaying the entire printed board. A display example is shown in FIG. Reference numeral 43 denotes a magnified image display means, which, when a flag is instructed by the instructing means 13, fetches flag data from the flag table 32 based on the number attached to the instructed flag, and indicates the flag based on the fetched data. Enlarge the area. A flag is also displayed on the enlarged display screen. An example of the enlarged display screen is shown in FIG. Reference numeral 44 is a flag maintenance means for maintaining the flag table. This maintenance is done interactively with the display screen. In the flag table maintenance setting process, the position where the flag is to be placed is specified on the display screen, and the flag coordinate values, display area data and flag attributes are set in the flag table. In the reset process, the flag data on the flag is deleted by instructing the flag on the display screen.

The operation of the board CAD system thus configured will be described. FIG. 5 is a flowchart showing the operation procedure of the board CAD system. In FIG. 5, when the flag is designated by the operator, the coordinate value of the flag and the display area data are retrieved from the flag table based on the attribute attached to the flag. Then, figure data and display parameters are set from the retrieved display area data. The display parameters include, for example, a scale determined by the magnification. Next, the graphic element for display is extracted from the graphic data, and the graphic of the enlarged image is displayed on the screen based on the display parameters. After that, the point of interest mark is displayed at the position indicated by the coordinate value of the flag in the enlarged image. In this way, the enlarged image of the position of interest is displayed.

Note that the point-of-interest mark is not limited to a flag, and may have various shapes such as a circle, a square, or the like, or a colored mark. Further, the attribute of the flag is not limited to the number and may be a character string, a color, or the like.

[0014]

[Effect of the device]

 According to the present invention, a point of interest mark having a shape and a color that can be easily identified in the print board is displayed in a portion of the screen displaying the printed board which is to be enlarged, and the focus point mark is displayed. Data related to enlargement processing are linked. This allows the operator to easily find the portion to be enlarged, even if the component density or wiring pattern density becomes high. In addition, the point of interest mark is also displayed in the enlarged screen. As a result, the operator can easily recognize the correspondence between the enlarged screen and the original screen with the attention point mark as the target. For these reasons, the operability of enlarged display can be greatly improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a memory configuration of a flag table.

FIG. 3 is a diagram showing an example of an entire display screen of a printed board.

FIG. 4 is a diagram showing an example of an enlarged display screen of a printed board.

5 is a flowchart showing an operation procedure of the system of FIG.

FIG. 6 is a diagram showing a method of enlarged display by a conventional board CAD system.

[Explanation of symbols]

 1 Input Device 13 Instructing Means 21 Display Unit 3 Storage Device 32 Flag Table 4 Computer 42 Focus Point Displaying Means 43 Enlarged Image Displaying Means

Claims (1)

[Scope of utility model registration request] 1. In a board CAD system having a function of enlarging and displaying a part of a printed board displayed on a screen, a focus point mark is displayed on a part of the printed board displayed on the screen which is enlarged. A point display means, a flag table in which the number of attention point marks is stored with flag data that associates the attributes of the attention point marks with the data used in the enlarged display processing, and an instruction means for instructing the attention point marks, When the point-of-interest mark is instructed by this instructing means, the flag data used for the enlarged display process is read out from the flag table based on the attribute attached to the point-of-interest mark instructed,
The board CAD system is characterized in that the board CAD system is equipped with a magnified image display means for carrying out a magnified display based on the read flag data and displaying a point of interest pointed on the magnified display screen. Board CAD system.