JPS61214022A - Graphic display control system - Google Patents

Abstract

PURPOSE:To reduce the data quantity and the load of the software by using a transformat obtained from the coordinate data stored in a terminal equipment and identification codes to transfer the picture information between a host and said terminal equipment. CONSTITUTION:When the identification codes and the coordinate/display data are supplied to a display terminal equipment 4 from a host, the equipment 4 judges the designation of coordinates or not. When the coordinates are designated, the coordinate information to which an access is made possible with the identification codes is stacked to a memory 7. If no coordinates is designated, the reference is fed to the contents of the memory 7 storing the coordinate information. Then a pattern connecting coordinates X1Y1-X3Y3 is displayed on a CRT 10. When an indication for reading at the host side is fed to the equipment 4, an identification code including the start point coordinates of the keying data (d) is obtained with the reference to a table of the memory 7. Then a pattern connecting coordinate systems X1Y1-XnYn is defined in a single field.

Description

[Detailed Description of the Invention] [Summary] This is a graphic display control method in which graphic display information such as figures between a host and a graphic display terminal device is composed of a figure identification code, figure coordinate data, etc. It is possible to reduce the amount of data by sending and receiving data in the same transfer format.

[Industrial application field]

The present invention relates to a graphic display control method for connecting a host and a graphic display terminal device to transmit and display graphic information.

Sends graphical information from the post side to the Graphic Tsuta display terminal side and displays it on the CRT of the Graphic Tsuta display terminal side, and also sends key-in data from the terminal side to the host side for necessary processing. There is a system that allows you to

In such systems, the host and graphic display terminal devices are often connected via low-speed communication lines, and the host side often requires various services from many terminal devices. . Therefore, there is a need for the development of a system that can efficiently give instructions for image display from the host side to a graphic display terminal device, and can also send required data from the terminal device side to the host side.

[Conventional technology]

In order to display a figure on a graphic display terminal device (hereinafter referred to as a terminal), coordinate information of the figure to be displayed is sent from the host side. This coordinate information is received on the terminal side and a figure is displayed at a predetermined coordinate position.

The host side manages and evaluates the coordinate positions suitable for each terminal, including the data entered manually on the terminal side, and recognizes the target graphical area.

[Problem that the invention seeks to solve]

When evaluating complex display figures using Post 1-Example, the program becomes complex and the burden on the software increases.
Additionally, the amount of data sent and received increases.

For this reason, when data is sent and received via a low-speed communication line, display becomes slow and a large amount of memory capacity is required on the host side.

[Means for solving problems]

FIG. 1 is a principle block diagram of the graphic display control method of the present invention.

In FIG. 1, reference numeral 15 indicates a host system device, 4 indicates a graphic display device, and the identification code and graphic coordinate data shown at 11.12 are transferred from the host system device 15 to the graphic display terminal device 4. On the other hand, from the graphic display terminal device 4, the host system N15
The graphic coordinate reading data shown in 13.14 and the identification code are transferred.

[Effect]

The exchange of standardized image data between the host 15 side and the terminal 4 is carried out using a transfer format 10 consisting of a specific code 11.14, graphic coordinate data 12.13, etc.
0,200.

When this transfer format 100 is received on the graphic display terminal device 4 side, the coordinate data is once stored and then read out and displayed on the screen. Further, by sending the identification data 14 and key-in data 13 from the graphic display terminal device 4 side, it becomes possible to process the corresponding figure on the post 15 side.

〔Example〕

FIG. 1 is a block diagram of a hardware configuration suitable for implementing the graphic display control method of the present invention.

In FIG. 1, 1 is a host computer, 2 is a channel control device and a channel, and is connected to an I10 control device 3. In FIG. 4 indicates a graphic display terminal device, and an interface 5. CPU6. It includes a memory 7 for storing coordinate information, a display memory 8 for displaying on CRTIO, and a scanner 9. Therefore, in contrast to conventional systems, memory 7 is used specifically for storing coordinate information.
The difference is that is assigned.

The exchange of standardized image data between the host side and the graphic display terminal device 4 is performed using a transfer format consisting of a specific code, graphic coordinate data, and the like. When the graphic display terminal device 4 receives this transfer format, the coordinate data is input to the display memory in accordance with the screen under the control of the CPU 6, read out by the scanner 9, and displayed on the CRTIO. For coordinate information corresponding to a specific code, ie, identification data, a table stored in the memory 7 in which coordinate information is stored is used. Further, by sending identification data and key-in data from the graphic display terminal device 4 side, processing for the corresponding figure is performed on the post side.

FIG. 4 is a control flow diagram on the graphic display terminal device side for realizing the method of the present invention. Figure F 11
．． When the identification code and coordinate/display data indicated by 12 arrive from the host 15 side, the process proceeds from step 20 to step 30.
Control is transferred to determine whether or not coordinates are specified. If coordinates are specified, coordinate information that can be accessed by an identification code as shown in Table 1 is stacked in the memory 7 for storing coordinate information in step 40.

If no coordinates are specified, the contents of the memory 7 in which coordinate information is stored are referred to in step 60. Thereafter, a figure connecting the coordinates x, y, ~x3Y in FIG. 3 is displayed on the CRTIO in step 50. Further, when an instruction to read the post l-15 (il+) is given to the graphic display terminal device 4 (Y in step 20), an identification code containing the starting point coordinates of the key-in data d is stored in the memory 7 in step 70. It is generated by referring to the table, and in step 80, the read data string and identification code shown in FIG. is defined as one field, and data is sent and received using a transfer format formed using the field F number or its equivalent code 1ζ.For this reason, data transmission between a standalone graphic display terminal device and the host is According to the present invention, as described above, the processing speed is improved by reducing the amount, and in the case of a real-time graphic display terminal device, the burden on coordinate control on the host side is reduced. Image information is sent and received between the host and the graphic display terminal using a transfer form formed from the coordinate data stored on the graphic display terminal and its identification code, reducing the amount of data required and the software load. reduction can be achieved.

[Brief explanation of drawings]

Fig. 1 is a principle block diagram of the graphic display control method of the present invention, Fig. 2 is a block diagram showing a bird and air configuration suitable for embodying the present invention, Fig. 3 is an example of display figures, Fig. 4 1 is a flowchart showing a control flow, 1 is a post computer, 3 is an I10 control device, 4 is a graphic display terminal device, 7.8 is a memory, and 10 is a CRT. Oshita Akira's Principle Fuparodzuku Diagram 1 Figure 2 (=, 2-) ND Production P Flow Diagram Figure 4 Line Note

Claims (1)

[Claims] Graphic display terminal (4) and host (1)
5) The display figure information is transferred between the side and the figure identification code (11, 14) and its figure coordinate data (12,
13), etc., and the transfer format (100, 2
00).