JPH04279984A - Graph data output control system - Google Patents

Abstract

PURPOSE:To enable a user to freely designate lines and graphics conforming to the international standard graph interface. CONSTITUTION:A register command by which extended graph data arbitrarily generated in accordance with standard graph data by the user is registered is provided in an application program. Extended graph data is stored in a data area 1 by this register command. This extended graph data is outputted by the same command as an output command for standard graph output.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention is a device for displaying graphs conforming to an international standard graph interface, which outputs graph data for drawing lines and figures of line type, marker type, stripe type, etc. arbitrarily defined by the user. Regarding control method.

0002

[Prior art] International standard graph interface (hereinafter referred to as
“CGI (Computer Graphics In
``Terface'') specifies that numbers are assigned to line types, marker types, and stripe types as follows. Line type...1. Solid line, 2. Broken line, 3. Dotted line, 4. dashed line,
5. Double-dashed line marker type...1. Dot, 2. Broken line, 3. asterisk,
4. Circle mark, 5. × mark striped line…1. Horizontal lines equally spaced, 2. Vertical lines equally spaced, 3. Positive diagonal line, 4. Negative diagonal line, 5. Crossing lines of vertical and horizontal lines, 6. diagonal crossing lines

FIG. 2 is a block diagram of a conventional graph data output control system. In the illustration, the data area 21 is divided into a plurality of storage areas, for example, 255, and each storage area stores standard graph data corresponding to numbers "1", "2", "3", etc. has been done. for example,
In the illustrated example, line type pattern data for solid lines, broken lines, dotted lines, one-dot chain lines, and two-dot chain lines are stored from the beginning of the data area 21.

[0004] These standard graph data are referred to by a graph control program in response to a predetermined output command in an application program. That is, the graph control program reads standard pattern data corresponding to the number specified in the output command in the application program. Then, according to the standard pattern data, a standardized graph is output to a display device or a printer device.

[0005]

[Problems to be Solved by the Invention] However, the above-mentioned conventional technology has the following problems. That is, C
It was not possible to specify anything other than the above-mentioned line types, marker types, and stripe types stipulated by GI. In other words, the user cannot change the length of the interval between the dotted lines, use a marker type other than the above, or change the interval between the striped lines.

The present invention has been made with attention to the above points, and an object of the present invention is to provide a highly versatile graph data output control method that allows the user to freely specify lines and figures while complying with CGI. That is.

[0007]

[Means for Solving the Problems] The graph data output control method of the present invention uses a predetermined output command in an application program to store standard graph data for outputting a standardized graph in a predetermined data area. At the same time, in order to store expanded graph data arbitrarily created by the user following the standard graph data in the data area, a registration command that can be used in the application program is prepared, and the data registered by the user is stored using the registration command. A graph data output control method, characterized in that a graph based on expanded graph data within a region can be output using the predetermined output command.

[0008]

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the graph data output control method of the present invention. The system shown has a data area 1. This data area 1 is divided into a plurality of storage areas, for example, 255, and each storage area stores standard graph data corresponding to numbers "1", "2", "3", etc. There is. For example, in the illustrated example, line type pattern data for solid lines, broken lines, dotted lines, one-dot chain lines, and two-dot chain lines are stored from the beginning of data area 1.

[0009] These standard graph data are referred to by a graph control program in response to a predetermined output command in an application program. That is, the graph control program reads standard pattern data corresponding to the number specified in the output command in the application program. Then, a standardized graph is output to a display device or a printer device according to the standard pattern data.

[0010] The data area 1 can store extended graph data arbitrarily created by the user based on standard graph data. For this reason, registration commands are provided that can be used in application programs. In this registration command, the user creates extended data and also specifies a predetermined storage area of data area 1 by number. And follow this registration command,
The graph control program transfers the extended graph data created by the user from the buffer area to the storage area of the specified number in the data area 1. Here, the number that can be specified with the registration command is a number that does not overlap with the number corresponding to the standard graph data. That is, since the standard graph data corresponds to the numbers "1", "2", "3", etc., the extended graph data has, for example, "255", "2", etc.
The numbers ``54'', ``253'', etc. should be made to correspond.In other words, the extended graph data should be stored from the opposite side of the data area.This prevents the standard pattern data from being destroyed by the user. .

[0011] By storing extended graph data in data area 1 using such a registration command,
The user uses an output command in the application program, specifies a number corresponding to the desired graph in the output command, and prints graphs such as lines and figures according to the extended graph data in data area 1 on a display device or printer. It can be output to a device, etc.

FIG. 3 is an explanatory diagram of the execution procedure of the method of the present invention. The application program sends an instruction to assign the extended pattern data to be registered to a specified number to the graph control program using a registration command. Thereby, the graph control program stores the extended pattern data in the storage area with the number specified by the application program. The application program is C
The line type is specified using the GI line type specification command, and the output of the line is instructed using the output command. The graph control program extracts pattern data from the data area where extended pattern data is stored and outputs lines in accordance with the pattern data.

[0013] In the above-mentioned embodiment, the case where the standard pattern data and the extended pattern data are line type pattern data has been explained, but the present invention is not limited to this. It goes without saying that the same applies to data as well.

[0014]

As explained above, according to the graph data output control method of the present invention, pattern data such as line types, marker types, stripe types, etc. defined by the user can be registered in an application program. It has the following effects. (2) It is possible to eliminate the need to previously register a large amount of pattern data other than the standard pattern data, and it is also possible to eliminate the need to customize the graph control program for each user. That is, the graph control program can be made more general. ■Pattern data can be changed during operation of the terminal system. In other words, graph data can be output flexibly.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of a graph data output control method of the present invention.

FIG. 2 is a block diagram of a conventional graph data output control method.

FIG. 3 is an explanatory diagram of the execution procedure of the method of the present invention.

[Explanation of symbols]

1 Data area

Claims (1)

[Claims] Claim 1: Using a predetermined output command in an application program, standard graph data for outputting a standardized graph is stored in a predetermined data area, and a user can input the standard graph data into the data area. In order to store extended graph data arbitrarily created by copying, a registration command that can be used in the application program is prepared, and a graph based on the extended graph data in the data area registered by the user is stored using the specified output command. A graph data output control method characterized by being able to output using.