JPH0475172A - Cad system - Google Patents

Abstract

PURPOSE:To improve the complexity of artwork by selecting a process wherein only graphic operation commands are used or a process wherein an easy language program is used on the same menu image plane. CONSTITUTION:The system is provided with a discrimination means 8 which discriminates whether a specified menu shows the selection of a graphic operation command or the easy language program and an interpreter 22 which calculates the parameter value that the graphic process requires. Further, the system is provided with a command processor which executes the graphic operation command immediately when it is decided that the graphic operation command is selected, or calls the graphic operation command based upon the parameter value calculated by the interpreter 22 as input data and passes the calculated parameter value to the command to perform the graphic process. Consequently, not only a figure specified with the graphic operation command, but also a figure similar to the specified figure with the graphic operation command by coordinate calculation can be generated through easy operation.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to improvement of a CAD system used for designing printed circuit boards, and in particular, in the CAD system,
This invention relates to an improvement of a graphic input device for doing artwork work.

<Prior Art> Conventionally, a graphic input device used in such a CAD system has a configuration shown in FIG. 3, for example.

In the figure, reference numeral 1 denotes a monitor display, and when inputting figures, a Japanese menu for figure processing such as straight line, arc, movement, etc. is displayed. One of these Japanese menus is assigned to each square. 2 is a tablet as a two-dimensional input device, 3 is a tablet 2
4 is a stylus pen that indicates a two-dimensional position on the surface of the screen; 4 is a cursor that indicates a position on the screen of the monitor display 1 in conjunction with the indicated position of the stylus pen 3; 5 is a cursor 4;
This is a square number reading unit that reads the square number of the Japanese menu specified by .

Reference numeral 6 is a Japanese menu registration section, which stores a Japanese menu table in which a grid number and a graphic manipulation command for processing the Japanese menu assigned to the grid number correspond to 1=1. There is. Shape manipulation commands are
This is a command to draw straight lines, arcs, etc. in an interactive format when working on artwork. For example, as shown in FIG. 4, when the command is a straight line and the coordinate values of three X-mark positions are input, a /\-shaped figure is created.

The same applies when the command is a three-point arc.

Reference numeral 7 denotes a command reading section which reads out graphic operation commands from the Japanese menu registration section 6 using the readout number of the square number reading section 5 as an address.

When inputting graphics using such a device, it is first necessary to select a graphics manipulation command.

This selection is made using the stylus pen 3 and the cursor 4 linked to the Japanese menu displayed on the monitor display.
When the switch is pressed, the square number is selected,
A graphic manipulation command is read from the Japanese menu registration section 6 using the selected number as an address. by this,
The Japanese menu is saved on the screen and a graphics screen appears.

<Problem U to be solved by the invention> However, such a graphic input device has the following problems.

On the menu screen, only one Japanese menu is assigned to each square, so when you select a series of shape manipulation commands in a certain combination, you will be returned to the menu screen each time, and the Japanese menu square will be assigned to one square. You have to select each item one by one, which makes the operation complicated.

Using FIG. 5 as an example, a case will be described in which artwork work is performed using graphic manipulation commands.

FIG. 5 is a silk diagram of the coil.

In the apparatus shown in FIG. 5, if a silk diagram as shown in FIG. 5(a) is to be reduced to be as shown in FIG. 5(b), the process can be done simply by specifying a figure manipulation command for reduction. However, when changing the number of turns of the coil as shown in Figure (C), it is necessary to create a new silk diagram or perform complicated correction work by combining graphic manipulation commands.

The present invention has been made to solve these problems, and it is possible to calculate not only the shape specified by the shape manipulation command, but also a similar shape to the shape specified by the shape manipulation command by calculating the coordinates. The purpose is to realize a CAD system that can be created by manipulation.

Means for Solving the Problems> The present invention provides a method in which a plurality of types of graphic processing menus are displayed on a monitor display of a graphic input device, and a command corresponding to a specified menu among these menus is executed. In a CAD system for creating figures, there is provided a determining means for determining whether the specified menu is one in which a figure manipulation command is selected or a simple language program is selected; is selected, the interpreter calculates the parameter values necessary for graphic processing, and if the result of this determination is that a graphic manipulation command is selected, the graphic manipulation command is immediately executed to perform graphic processing. , if a simple language program is selected, a command processor that calls a graphic manipulation command that uses the parameter values calculated by the interpreter as input data, passes the calculated parameter values to this command, and performs graphic processing. This is a graphic input device characterized by the following.

According to the present invention, if the specified menu is one in which a graphics manipulation command is selected, the graphics manipulation command is immediately executed, and if the specified menu is one in which a simple language program is selected, this program is executed. A parameter value is calculated, and a graphic manipulation command is executed using the calculated parameter value.

<Example> The present invention will be explained below using the drawings.

FIG. 1 is a block diagram of an embodiment of a CAD system according to the present invention. Components in FIG. 1 that are the same as those in FIG. 3 are given the same reference numerals.

In FIG. 1, 10 is a graphic input device, 20 is a host C
It is PU.

In the graphic input device 10, in addition to the Japanese menu shown in the conventional example of FIG. 3, a menu for specifying a simple language program is added to the menu screen of the monitor display 1. For this reason, the output data of the square number reading unit 5 includes, in addition to the square number data, code data that distinguishes between a simple language program and a single graphic manipulation program (hereinafter, this code data is referred to as distinguishing code data). has been added.

8 is a determination means for determining whether the specified Japanese menu is a selection of a simple language program or a selection of a single graphical manipulation program, based on the bit state of the diacritic code data. . Reference numeral 9 denotes a simple language program storage section in which a simple language program is stored.

In the host CPU 20, 21 is a command processor which immediately executes the command read out from the command reading unit 7 when the judgment result of the judgment means 8 or a single graphic manipulation program is selected. . 22 is an interpreter, and if the determination result of the determination means 8 is that a simple language program is selected,
Parameter values are calculated using the simple language program read from the storage unit 9. Here, the simple language program is one that can call graphic manipulation commands and can pass numerical values, such as coordinate values, calculated within the program to the processing of the graphic manipulation commands as parameters.

Reference numeral 23 denotes a database storage unit that stores graphics processed by the command processor 21 as a database.

The operation of such a CAD system will be explained.

FIG. 2 is a flowchart showing the operating procedure.

When a Japanese menu square is designated by the cursor 4 on the screen of the monitor display 1, a command to be executed is read from the Japanese menu registration section 6 using the square number as an address.

If the read command is a single graphic manipulation command, the command processor 21 immediately executes the read command, displays the result on the monitor display 1, and displays the graphic data obtained as a result of the command execution. The information is stored in the database storage unit 23.

If the read command selects a simple language program, the interpreter 22 first executes the simple language program. In this program, parameters such as the dimension value of the figure and the number of copies are input, and numerical values such as coordinate values are calculated based on the input values. The calculated value becomes a parameter of the graphic manipulation command and is sequentially passed to the command processor 21. The command processor 21 calls and executes a graphic manipulation command using this parameter as input data.

Depending on the Japanese menu thus instructed, processing using a single graphic manipulation command or processing using a simple language program is selected.

In the embodiment, the case where one of the selections is a single graphical manipulation command has been explained, but for regular work, a combination of several graphical manipulation commands is registered in advance, and one of the selections is a single graphical manipulation command. Processing may be performed using a combination of graphical manipulation commands.

According to the present invention, on the same menu screen, it is possible to select between processing using only figure manipulation commands and processing using a simple language program. , Similar figures such as repeating figures of this figure can also be input by simple operations using coordinate calculations using a simple language program. This can improve the complexity of the artwork.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of an embodiment of the present invention, Fig. 2 is an explanatory diagram of the operation of the system in Fig. 1, Fig. 3 is a diagram showing an example of the configuration of the main parts of a conventional CAD system, and Fig. 4 5 is an explanatory diagram of the operation of the system shown in FIG. 1. 1...Monitor display, 2...Tablet, 3
... Stylus pen, 4... Cursor, 5... Square number reading section, 6... Japanese menu registration section, 7
...Command reading unit, 8...Discrimination means, 9...
Simple program storage unit, 10...Graphic input device, 20
... host CPU, 21 ... command processor,
22...In Figure-58; (Q) Figure Figure-58;

Claims (1)

[Claims] In a CAD system in which a plurality of types of graphic processing menus are displayed on a monitor display of a graphic input device, and a graphic is created by executing a command corresponding to a specified menu among these menus. , a determining means for determining whether the specified menu selects a graphic manipulation command or a simple language program, and if the result of this determination is that the simple language program is selected; is an interpreter that calculates parameter values necessary for graphic processing, and if the result of this determination is that a graphic manipulation command is selected, immediately executes the graphic manipulation command to perform graphic processing, and selects a simple language program. a command processor that calls a graphic manipulation command using the parameter values calculated by the interpreter as input data, passes the calculated parameter values to the command, and performs graphic processing. Input device.