JPS62125473A - Display processing method - Google Patents

Abstract

PURPOSE:To use a memory with high efficiency and to reduce the load of a host by storing data base information in the 1st or 2nd data style and then changing these data styles as necessary for output. CONSTITUTION:A memory 203a of a data base part 203 stores data base information on the pictures in the 1st data style which can be treated by a host 201 or the 2nd data style which can be treated by a graphic display terminal 202. When the data base information is requested by the terminal 202, the relevant base information if stored in the 1st data style is converted into the 2nd data style by a processor 203b and transferred to the terminal 202. In the same way, the data base information requested from the host 201 is changed into the 1st data style and transferred to the host 201 as long as the base information is stored in the 2nd data style.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a display processing method, and more particularly to a display processing method suitable for applying a host and a large number of graphic display terminals to a bullet network system.

<Prior art> CAM/CAD systems allow for efficient design in an interactive format, as well as the ability to make partial corrections during the design process, resulting in flexible design. Since the existing database information can be used, there are various advantages such as shortening of design time and shortening of delivery time. Fig. 2 is a block diagram of such a conventional CAM/CAD system.

101 is the host side, and the host computer 101a
and a memory 101b for accumulating database information regarding various images. -0102 is the Graphif Display terminal side, and is the interface 1 with the host side.
02a and the database information transferred from the host computer (hereinafter simply referred to as the host) 101a.
A display file processor 102b that converts CR7 display data into R7 display data and performs coordinate conversion processing on the CR7 display data based on local instructions on the terminal side, and a display file memory that stores CR7 display data processed by the display file processor. (segment buffer) 102c and data input device 102
d, a display processor 102e that generates an image based on CR7 display data obtained through image processing by the display file processor 102b and stores it in a built-in frame buffer, and a CRT 102f. Note that the data input device 102d includes a tablet, a digital stick, a light pen, a keyboard, a trackball, and the like.

In response to a request from the data input device 102d, the display file processor 102b requests predetermined database information from the host 101a, and thereby
01a reads the requested database information from the memory 101b and transfers it to the display side.

The display file processor 102b converts the transferred database information into CR7 display data in a format that can be processed at high speed during image processing, and stores it in the display file memory 102c. For example, CR7 display data is generated by converting database information expressed as floating data to fixed-point data, or converting database information expressed in the world coordinate system to a three-dimensional coordinate system set on the CRT surface. and stores it in the display file memory 102c.

Next, the display processor 102e generates a figure based on the CR7 display data and stores it in the built-in frame memory, and thereafter synchronizes reading of image data from the frame memory and scanning of the beam by raster scanning to generate the figure. is displayed on both screens of the CRT 102f.

Then, if you want to modify (rotate, move, enlarge, reduce, etc.) or delete a part of the displayed figure, pick the part with the Tomoba Light Ben and blink the part as instructed. (or the color changes), the data input device 102d instructs what kind of correction to make after printing.

As a result, display file processor 102b
performs predetermined coordinate transformation processing on the designated portion of the CR7 display data to correct it and sends it to the display processor 102e. The display processor 102e performs the above-described image generation processing based on the corrected CR7 display data and displays it on the CRT 102f.

If the modified figure is more preferable than the figure based on the original database information, the data input device 102d instructs registration of the figure.

According to the instruction, the display file processor 102b
notifies the host how the shape was modified based on the original database information. Based on the notified data, the host retrieves the original database information from memory, modifies it, and then stores it in memory 101b.

<Problems to be Solved by the Invention> However, in this conventional method, data regarding the same figure (as database information on the host side and as CR7 display data on the display side) is stored redundantly in the memory on the host side and the display side. Therefore, there is a problem that the memory is not used effectively. Furthermore, if you want to register a modified figure in the database memory 101b, the host side must make changes to the database information regarding the original figure using the data sent from the display side, which increases the load on the host. There are also growing problems. Note that these problems become particularly noticeable as the number of graphic display terminals connected to the host increases.

Furthermore, the database information is in a format that can be handled by hosts 1~ (
Since it is a data format (first data format) that can be handled by the graphic display terminal each time it is used on the graphic display terminal side (second data format)
There is also the problem that the conversion requires time and immediate graphic display cannot be performed.

In light of the above, an object of the present invention is to provide a display processing method that allows effective use of memory, reduces the load on the host, and allows instant graphic display.

Means to solve problems〉 FIG. 1 is a block diagram of an embodiment of the present invention.

201 is a host, 202 is a graphic display terminal, and 203 is a database section provided between the host and the graphic display terminal.

Each graphics display terminal 202 has a display processor 202a, a CRT 202b, a data input module 202c, and an interface 202d.

The database unit 203 has a database memory 203a, a file management processor 203b, and an interface 203C.

The host 201 and the graphic display terminal 202 each connect to the processor 1 via an interface 203C.
03b.

Effect> A small strike 201 is stored in the memory 203 of the database section 203.
Database information regarding images is stored in a first data format that can be handled by the graphics display terminal 202 or in a second data format that can be handled by the graphic display terminal 202.

Then, if the database information requested from the graphic display terminal 202 is in the first data format, the processor 203b of the database unit converts it into the second data format and transfers it, and the database information requested from the host 201 is converted into the second data format. If so, it is converted into the first data format and transferred, and furthermore, the graphic data is registered in the database memory 203a as database information in the second data format in response to a registration request from the graphic display terminal.

In this way, the database section is configured to store database information in the first data format or the second data format, and the database section converts the data format of the database information and outputs it, so that memory can be used effectively. This reduces the load on the host and also enables instant graphic display.

<Example> FIG. 1 is a block diagram of an embodiment of the present invention.

201 is a host, 202, 202, . . . are graphic display terminals, and 203 is a database unit disposed between the host and the gelanoic display terminal.

Although two graphic display terminals 202 are shown in the figure, it may be one, three or more.

Each graphic display terminal 202 includes a display processor 202a, a CRT 202b, a data input device 202c, and an interface 202d.
Compared to the conventional graphic display terminal shown in Figure 2, it has a simpler configuration that eliminates the display processor and display file memory (segment buffer).

The database unit 203 has a database memory 203a, a file management processor 203b, and an interface 203C.

The database memory 203a stores nine pieces of database information regarding images in a first data format that can be handled by the al host 201 and a second data format that can be handled by the bl graphic display terminal 202.

A host 201 and a graphic display terminal 202.
202 are each connected to the file manager I processor 203b via an interface 203C, and are configured to share the database unit 203.

Seven aisle management members 1. according to requests from data input device 202C of graphic display terminal 202;
Processor 203b reads predetermined database information from database memory 203a.

If the database information read from the memory 203a is information in a format handled by the host (first data format), the processor 203b converts the database information into CRT display data in a format that can be processed at high speed during image processing (second data format). The request is then transferred to the graphic display terminal 202 that generated the request.

However, if the database information is information in the second data format that can be handled by the graph ink display terminal, the processor 203b immediately transfers the database information to the graphic ink display terminal 202 without performing the conversion process.

The display processor 202a of the graphic display terminal 202 generates graphics based on the CRT display data transferred from the database section 203, stores them in the built-in frame memory, and thereafter reads the image data from the frame memory by raster scanning. The scanning of the beams is synchronized and the figure is displayed on the screen of the CRT 202f.

Then, if you want to modify (rotate, move, enlarge, reduce, etc.) or delete a part of the displayed figure, select the part with a light pen and specify the correction. Instruct them what to do.

As a result, the display processing center 202a performs a predetermined coordinate transformation process on the CRT display data of the designated portion, performs the above-mentioned image generation process based on the CRT display data obtained by the process, and outputs the image to the CRT 202b. indicate.

If the user wishes to register the corrected figure, he or she instructs to that effect from the data input device 202d.

In response to this instruction, the display processor 202a transfers the CRT display data in the second data format to the database section 203 with an identification number attached as it is, and the processor 203b of the database section memorizes the CRT display data in the second data format as database information. Register to J203a.

On the other hand, when a search command requesting predetermined database information is sent from the host 201, the file management processor 203b reads the database information specified by the search command from the memory 203n, and determines whether the database information is handled by the host or not. CRT display data format that cannot be handled by the host (second data format).
If so, convert it into data that can be handled by the host and transfer it.

<Effects of the Invention> According to the present invention, a database unit commonly used by a host and one or more graphics display terminals is provided between the host and one or more graphics display terminals, and the first data format or the second data is stored in the memory of the database unit. Since the database information is stored in a format, the database section converts the data format of the database information and outputs it to a host or a graphic display terminal.
It is possible to effectively utilize memory and reduce the load on the host, and since database information in the second format can be transferred to a graphic display terminal without conversion, it is possible to instantly create a 'Rough Innocent' game and play with 'T (1'; iζ). Ta.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a system that implements display processing according to the present invention, and FIG. 2 is a conventional system configuration diagram. 201...Host, 202...Graphic display terminal, 202a...
- Display processor, 202b...CR,T. 203...Database section, 203a and database memory,

Claims (1)

[Scope of Claims] A database unit is provided between the host and the graphic display terminal, and information relating to images is stored in the memory of the database unit in a first data format that can be handled by the host or in a second data format that can be handled by the graphic display terminal. If the database information requested from the graphic display terminal is in the first data format, the processor of the database section converts it into the second data format and transfers the database information requested by the host. If the data format is in the second data format, the display converts it into the first data format and transfers the data, and further registers the graphic data in the second data format in memory as database information in response to a registration request from the graphic display terminal. Processing method.