JPH02100766A - Graphic editing device - Google Patents

Abstract

PURPOSE:To prevent such errors as the decision omission or the duplication of the logical attribute of the exclusive output by deciding the logical attribute of the exclusive output of a symbol having the logical attribute in its output. CONSTITUTION:A pin attribute buffer 1-4b holds temporarily the pin attribute of a symbol having the logical attribute in its output at input of this symbol. Then the buffer 1-4b inputs the symbol while checking its contents. In other words, the logical attribute of one of both outputs is decided and therefore the logical attribute of the other output is allocated. Thus the logical attribute of one of both outputs of an 'IF' symbol of a flow chart is inputted to a mouse 1-2, a keyboard chart 1-1, etc., from an input device in the form 'YES'. Thus the logical attribute of the other output is decided as 'NO' and a graphic editing device is not required to perform the input of 'NO'.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Usage] The present invention relates to a diagram editing device, and more particularly, to a diagram editing device that determines logical attributes of symbols in a diagram in a diagram editing device such as a CAD system.

[Prior Art] Generally, in a chart such as a flowchart, for example, I
For output in symbols such as F statements, “YES”, “
A logical attribute such as "No" is assigned to the output of the symbol.When editing a symbol that has a logical attribute as an output on a diagram editing device such as a CAD system, when inputting the symbol, the output of the symbol is assigned a "YES" attribute. It is necessary to determine which logical attribute the output has, ``'' or ``No.'' In determining this logical attribute, conventionally, the logical attribute was independently determined for each output.

[Problems to be Solved by the Invention] However, in the conventional example described above, the output logic attribute of a symbol is determined independently for each output, which has the following drawbacks.

(1) The logical attributes of the two outputs of a symbol are exclusive, so even though it is only necessary to determine the logical attribute of one of the outputs, the logical attributes of the remaining outputs must also be determined. must be entered.

(2) Since the logical attributes of the two outputs of a symbol are not treated as exclusive, input errors such as duplication or omission of logical attributes may occur.

[Means for Solving the Problems] According to the present invention, in the above-mentioned diagram editing device, a buffer is prepared for temporarily storing the pin attributes of the symbol at the time of inputting the symbol, and the contents of the buffer are If you determine the logical attribute of one of the outputs by inputting while checking, the logical attribute of the other remaining output is assigned. When "YES" is input from an input device such as a mouse or a keyboard, the logical attribute of the other output is determined to be "NO", making it possible to realize a diagram editing device in which it is not necessary to input "No".

[Embodiment] FIG. 1 is a diagram showing the configuration of an embodiment of the present invention. The tree embodiment describes a CAD system that edits flowcharts on a graphic display. In FIG. 1, 1-1 is a keyboard of an input device, 1-2
1-3 is the input device mouse, 1-3 is the processing unit CPU that controls the entire system, and 1-4 is the memory, which is area 1-4 that stores the editor program shown in FIG. 2 for editing the flowchart. 4a and the attributes of the pin of the symbol being input on the flowchart, that is, whether it is an input pin, an output pin, a human output, whether the logic is “YES” output, or “No”.
``A pin attribute buffer 1-4b for temporarily storing whether it is an output, buffers 1-4c and 1-4d for temporarily storing the symbol name and position information of the input symbol, It consists of a counter 1-4ε indicating the number of pin attributes that have already been determined, and an area 1-4f for storing input symbol data.1-5 is a display for displaying the flowchart being edited. .1-
Reference numeral 6 denotes a display control unit, which includes a memory 1-6A having storage locations in one-to-one correspondence with pixels on the display screen. FIG. 2 is a diagram showing a flowchart of an embodiment of the present invention, FIG. 3 is a diagram showing one screen on a display, and FIG. 4 is a diagram showing a format of symbol data. The operation of FIG. 1 will be explained below using FIGS. 2, 3, and 4.

First, when you start the editor for inputting/[1-] the flowchart, in step 2-3 the keyboard 1-1
It will wait for command input from. Assuming that the command “ADDSYM IF” to add the symbol “IF” for conditional judgment is input, step 2-10
Proceed to. Here, the value i of the counter 1-4e (hereinafter referred to as i) is reset to φ, and in step 2-11, the position of the symbol °'IF'' on the display is determined using the mouse 1-2. name buffer 1-40 “
IF" and the position information designated by the mask to the position information buffer 1-4d.Furthermore, only the frame of the symbol 3-1 "IF" is written to the memory 1-6A and displayed on the display.Next Step 2-
At step 12, the bin number is read and checked. Assuming that the bin number of the symbol ``IF'' is 1 to 4 as shown in Figure 3, here we wait for the pin specification from the mouse and check the entry for the pin specified by the mouse in the bin attribute buffer 1-4b. If there is an entry, it will wait for another pin to be designated by the mouse again, but if there is no entry, it will hold that bin number in register A (1-3a) and
At step 2-13, it waits for the human output attribute of that pin to be specified from the keyboard 1-1. If the pin is an input bin,
A flag IN indicating that the bin is an input bin is set at the position of the bin number held in register A of the bin attribute buffer, and 1 is added to the value of the counter i. If the pin is an output pin, step 2-15 sets the logical attribute of the pin (in this case “
Wait for ``YES'', ``No'') to be specified.

If the logic attribute of the pin is "YES", set a flag YOUT indicating that the logic is "YES" and the pin is an output bin at the bin number held in register A of the bin attribute buffer. -2, at that pin position “Y”
ES" is displayed and the pin number is read and checked again. Similarly to the above, a flag N0OT is set in a predetermined position M of the pin attribute buffer to indicate that the logic is "NO" and the bin is an output bin. Step 3- 3, display NO at that pin position. If the logic specified in step 2-15 is NO, the logic is reversed and the same operation as above is performed.

Next, add 2 to (+i'f) of counter i, and if i = 3, repeat the above operation, but if i = 3, input and display evaluation formula 3-4. From the evaluation formula input in name buffer 1-4c, position information buffer 1-4d, pin attribute buffer 1-4b, and 2-27,
Symbol data in the format is created and stored at a predetermined position in the symbol data storage area 1-4f.

This completes the process when the command is "ADDSYHIF'" and returns to step 2-3. If there are other commands, respective predetermined processes are performed in steps 2-5 and 2-6.

The effect on the tree layer side is that by determining one of the output logics of the symbol ``IF'', the other logic is determined and displayed without inputting it, so the input associated with determining the logic is You can eliminate old problems such as omissions and duplication.

[Other Embodiments] The flowchart in the above embodiment may be another chart such as an HCP chart, and the symbol is not limited to b'''IF'', but may have logic as an output attribute. Anything is fine.

In addition, the output logic is 2 such as 'YES' and 'No'.
The present invention is not limited to output logic, and may be anything that allows the remaining logical attributes to be determined when some output attributes are input, even if the logical attributes have three or more outputs.

[Effects of the Invention] As described above, by determining the logical attribute of the exclusive output of a symbol whose output has a logical attribute, it is possible to eliminate errors such as omission or duplication of the logical attribute of the exclusive output.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the configuration of an embodiment of the present invention, FIG. 2 is a diagram showing a flowchart of the embodiment of the present invention, FIG. 3 is a diagram showing one screen of the display of the embodiment of the present invention, and FIG. The figure is a diagram showing an example of the format of symbol data according to the embodiment of the present invention. ′! -1...Keyboard, 1-2...Mouse, 1-3
・-・CPU, 1-3a-・Register A11-4...
・Memory, 1-4a...Editor program, 1-4
b...Pin attribute buffer, 1-4c...Symbol name buffer, 1-4d...Symbol position information buffer,
1-4e... Connection pin number counter 111-4f...
Symbol data storage area, 1-5...Display.

Claims (1)

[Claims] Input means for inputting chart information representing a chart;
Display control means for displaying a chart based on chart information input from the input means; Attribute input means for inputting one of the logical attributes for the chart displayed by the display control means; Input from the attribute input means determining means for determining another logical attribute of the chart based on the determined logical attribute; and means for further displaying information on the logical attribute on the chart in response to the determining means and the attribute input means. Illustration editing device.