JPS63301359A - Interactive processing system for graphic data - Google Patents

Abstract

PURPOSE:To shorten the waiting time for terminal operations by using a processing order controller which holds plural command data given from an input device and at the same time controls the input order of those command data to a graphic data processor in accordance with the types of said command data. CONSTITUTION:The plural command data are supplied en block into a processing order controller 2 from an input device 1. At the same time, a graphic data processor 5 processes continuously those command data in response to their priorities so that no conflict occurs when each of said command data is carried out by the controller 2. Thus the circuit using frequency is reduced even in such a case where the terminal of a time sharing system using a communication circuit having a comparatively low data transfer speed is used as the device 1, a display device 7, etc. As a result, the waiting time is shortened for an editing operation of the graphic data carried out at a terminal.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to interactive processing technology for graphical data, and is particularly applicable to displaying and editing processing of graphical data performed in terminals of time sharing systems. Regarding effective techniques.

[Conventional technology]

For example, in computer-assisted design work,
Drafting work may be performed by editing graphic data in an interactive manner using a time sharing system terminal or the like.

Conventionally, the interactive processing method for such graphic data is as follows:
A technique disclosed in Japanese Unexamined Patent Publication No. 156479/1983 has been proposed.

The outline of the system is to determine the type of command data input using an input means such as a light or pen, and to create figures organized by functions such as enlarging/reducing figure data, adding/dividing/deleting points or line segments, etc. The graphic data is edited by repeating the operation of operating one of the data processing means and displaying the processing result on the screen for each operation.

[Problem that the invention seeks to solve]

However, in the above-mentioned conventional technology, since the processing results are sequentially displayed on the screen for each individual command data, for example, the system is connected to the host computer via a communication line with a relatively low data transfer rate. When performing the above series of editing processes using a terminal, the frequency of data exchange between the host computer and the terminal via the communication line increases, resulting in a longer waiting time when operating the terminal. There is.

SUMMARY OF THE INVENTION An object of the present invention is to provide an interactive processing technique for graphic data that can reduce waiting time for terminal operations.

[Means for solving problems]

The present invention provides a display means for displaying predetermined graphic data;
An input means for inputting command data instructing a predetermined process on the graphic data by positioning a cursor at a desired position on the screen of the display means, and an input means for inputting command data instructing a predetermined process on the graphic data, and inputting a command data on the graphic data according to the type of process instructed by the command data. In a graphic data interactive processing method comprising a graphic data processing means for performing predetermined processing and a display control means for controlling a display means based on the output from the graphic data processing means, there is a process between the input means and the graphic data processing means. A processing order control means is interposed for holding a plurality of command data sent from the input means and for controlling the input order of individual command data to the graphic data processing means according to the type of each command data. It is something.

[Effect]

According to the above-mentioned means, a plurality of command data can be processed at once without causing any inconsistency in the mutual execution order, etc.
Since the processing results can be displayed on the display means, data can be exchanged between a terminal consisting of an input means and a display means connected via a communication line, etc., and a host computer that processes command data, etc. This reduces the number of times, and it is possible to shorten the waiting time for terminal operations in interactive processing of graphic data.

〔Example〕

FIG. 1 is a block diagram illustrating a graphic data interactive processing method according to an embodiment of the present invention, and FIG. 2 is an external perspective view of a terminal in which the graphic data interactive processing method of this embodiment is performed. , 3 and 4 are diagrams showing the state of the screen of the display means, and FIGS. 5 to 8 are flowcharts showing the process of processing command data.

The graphic data interactive processing method of this embodiment includes an input means 1 consisting of a keyboard, etc., a processing order control means 2, a graphic data processing means 5 consisting of a command data extraction section 3 and a graphic data processing section 4, and a display control section 5. The input means 1 and the display means 7 constitute a terminal T of a time sharing system (not shown).

The processing order control means 2 adds, divides, and adds to predetermined graphic data inputted from the outside via the input means 1.
It is configured to hold a plurality of command data such as deletion, and to send each command data to the subsequent command data extracting unit 3 according to the mutual priority of each command data.

The command data extraction unit 3 is an additional command extraction unit 3a.

It is equipped with a division command extraction section 3b and a deletion command extraction section 3c, and selects matching command data from among a plurality of command data inputted in a predetermined order from the processing order control means 2.
This is to be transmitted to the graphic data processing section 4 at the subsequent stage.

The graphic data processing section 4 includes an additional command extraction section 3a and a division command extraction section 3b of the command data extraction section 3.

Additional processing units 4a correspond to the deletion command extraction units 3C, respectively.
, a division processing section 4b, and a deletion processing section 4C are provided.
In each process, processing such as addition, division, deletion, etc. is performed on the target graphic data, and the processing results are sent to the display control means 6.
is configured to be sent to

The display control means 6 displays a predetermined figure on the screen 7a of the display means 7 by generating a control signal for the display means 7, such as a cathode ray tube, based on the processing result obtained from the figure data processing section 4 in the preceding stage. It is used for drawing, erasing, etc.

In this case, command data from the input means 1 is input as character data.

That is, the keyboard as the input means 1 is equipped with a character input key 1a and a cursor movement key 1b, and by moving the cursor 7b to a desired position on the screen 7a of the display means 7 and pressing the character input key 1a, , predetermined characters indicating the type of command data are displayed on the screen 7a.

In this embodiment, for example, the letter "S" indicates the addition of a line segment, the letter "C" indicates the division of two parallel line segments into two equal parts, and the letter "D" indicates the deletion of the line segment. shall be indicated.

In addition, in order to prevent the basic graphic data from being deleted before adding graphic data and causing a contradiction in the processing of the command data, the command data is not sent from the processing order control means 2 to the graphic data processing means 5. , “S” l
The priority order is made lower in the order of "lIC" and "D".

The operation of this embodiment will be explained below.

First, as shown in FIG. 3, the screen 7a of the display means 7
, parallel line segment 8° and line segment 9 are already displayed as graphic data, and as an example of horizontal construction work, line segment 12 (the third ) addition of line segment 13 between line segments 8 and 9
(not shown in FIG. 3), deletion of line segment 9, etc. will be considered.

In other words, the main part of the interactive processing of graphic data in this embodiment is
A flow chart showing the routine is shown in FIG. 5. The main routine starts at step 101, and in step 102, a plurality of command data 14. Command data 1
5. Command data 16° Command data 17. Command data 18
．． The command data 19 is input all at once, and the screen 7a of the display means 7 is in the state shown in FIG.

In this case, the command data 14 is the character "Z" which is an incorrect input, and the command data 15 and 16 are the characters 10 and 11, respectively.
The letter "S" input near indicates the addition of a line segment 12 connecting points 10 and 11, and further command data 17.18
is the character “C” input near the parallel line segments 8 and 9 that have already been input, indicating the division by the line segment 13 between the line segments 8 and 9, and further , the command data 19 indicates deletion of the line segment 9 by the character "D" input near the line segment 9.

Next, in step 103, command data indicating addition indicated by the character "Sm" is extracted, and the presence or absence of the corresponding command data is determined in the next step 104. In this case, command data 15 and 16 are applicable. Therefore, the additional processing routine 105 shown in FIG. 6 is executed.

This additional processing routine 105 starts from step 201, and in step 202, command data 1'5.1
Find the nearest points 10 and 11 of 6, step 2
At step 03, line segment 12 connecting points 10.11 is displayed, and at step 204, command data 14.15 is deleted.
At step 205, the process returns to the main routine of FIG.

Next, in step 106, command data indicating division by a predetermined line segment between two line segments indicated by the letter "C" is extracted, and in step 107, it is determined whether or not extraction is performed. Since command data 17 and command data 18 are applicable, the division processing routine 108 shown in FIG. 7 is executed.

This division processing routine 108 starts from step 301, and in step 302 command data 17.1
8 is searched for, and in step 303, a line segment 13 that divides the space between line segments 8 and 9 into thirds is displayed.

Further, in step 304, the command data 17-18 is erased, and in step 305, the process returns to the main routine shown in FIG.

Furthermore, in step 109, command data indicating deletion indicated by the letter "D" is extracted, and in step 11
In step 0, it is determined whether or not the corresponding command data exists, and in this case, since the command data 19 is relevant, the deletion processing routine 111 shown in FIG. 8 is executed.

This deletion processing routine 111 starts at step 401, searches for the line segment 9 closest to the command data 19 at step 402, deletes the line segment 9 at step 403, and deletes the command data 19 at step 404. At step 405, the process returns to the main routine shown in FIG.

Then, in the main routine, the process returns to step 102 before inputting command data, and the screen 7a of the display means 7 at this time becomes as shown in FIG.

As described above, in this embodiment, a plurality of command data are inputted at once from the input means 1 to the processing order control means 2, and the processing order control means 2 avoids conflicts when executing the individual command data. In order to avoid this, a plurality of command data are sent to the graphic data processing means 5 according to the priority order of each command data, and furthermore, the plurality of command data are continuously processed in the graphic data processing means 5. For example, even if the terminal T of a time sharing system that uses a communication line with a relatively low data transfer rate is used as the input means 1 and the display means 7, the frequency of use of the line is reduced. ,
The waiting time for graphic data editing operations at the terminal T can be reduced.

Furthermore, in this embodiment, as shown in FIG. 4, the command data 14 input incorrectly does not fall under the normal processing category and is left behind on the screen 7a. can be known with certainty.

In addition, in the explanation of the above embodiment, as an example of the editing operation, the case of adding, dividing, and deleting graphic data was explained. Needless to say, it is extensible.

[Effects of the Invention] The present invention provides a display means for displaying predetermined graphic data;
input means for inputting command data for instructing predetermined processing on the graphic data by positioning a cursor at a desired position on the screen of the display means; A graphic data interactive processing method comprising a graphic data processing means for performing predetermined processing on the graphic data, and a display control means for controlling the display means based on the output from the graphic data processing means, the method comprising: A plurality of command data sent from the input means are held between the means and the graphic data processing means, and the graphic data processing means stores each of the command data according to the type of each previous command data. Since a processing order control means for controlling the input order is provided, multiple command data can be processed at once without causing any inconsistency in the execution order, etc., and the processing results can be displayed on the display means. For example, the frequency of data exchange between a terminal consisting of an input means and a display means connected via a communication line, etc. and a host computer processing command data etc. is reduced, and graphic data It is possible to reduce the waiting time for terminal operations in interactive processing.

[Brief explanation of the drawing]

FIG. 1 is a block diagram illustrating a graphic data interactive processing method according to an embodiment of the present invention; FIG. 2 is an external perspective view of a terminal on which a graphic data interactive processing method according to an embodiment of the present invention is performed; 3 is a diagram showing the state of the screen of the display means, FIG. 4 is a diagram showing the state of the screen of the display means, and FIG. 5 is a flow chart showing the main routine of the interactive processing method for graphic data. FIG. 6 is a flow chart showing the addition processing routine, FIG. 7 is a flow chart showing the division processing routine, and FIG. 8 is a flow chart showing the deletion processing routine. 1... Input means, 2... Processing order control means, 3...
・Command data extraction section, 4...Graphic data processing section, 5.
... Graphic data processing means, 6... Display control means, 7.
...Display means, 8.9...Line segment (graphic data), 10
．． 11... Point (figure data), 12.13... Line segment (figure data), 14.15, 16.17, 18.19
... Command data, T... Terminal, 101-111...
- Main routine, 201-205... Additional processing routine, 301-305... Division processing routine, 40
1-405...Deletion processing routine. Figure 2 Figure 4

Claims (1)

[Claims] 1. Display means for displaying predetermined graphic data, and command data for instructing predetermined processing on the graphic data by positioning a cursor at a desired position on the screen of the display means. an input means for inputting the information, a graphic data processing means for performing a predetermined process on the graphic data according to the type of processing instructed by the command data, and a display means for performing a predetermined process on the graphic data based on the output from the graphic data processing means. A graphic data interactive processing system comprising a display control means for controlling, a plurality of command data sent from the input means is held between the input means and the graphic data processing means, and each A method for interactive processing of graphic data, characterized in that a processing order control means is provided for controlling the input order of individual command data to the graphic data processing means according to the type of the command data. 2. The graphic according to claim 1, wherein the input means is a keyboard, and the command data is input as characters representing the type of processing at a desired position on the screen of the display means. Data interaction method. 3. The graphic data interactive processing method according to claim 1, wherein the display means and the input means constitute a terminal of a time sharing system.