JPS60181790A - Cursor display control system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a cursor display control method in a graphic display device.

(2) Prior art and problems Graphic display devices include a keyboard for inputting user commands and a pointing device (light pen, stylus pen, etc.) for inputting the coordinates of a specified point on the screen. Used together. When inputting a specified point, a special symbol called a cursor is displayed on the screen to indicate the position.

Conventionally, in such graphic display devices, there was only one type of cursor, and it was not possible to attach meanings (additional conditions) to the cursor, so it was difficult to handle complex screens. The problem was that it was not possible to input data efficiently, such as in cases.

(3) Purpose of the Invention In view of the above conventional problems, the present invention improves operability by displaying a plurality of cursors on a display and making it possible to attach specific conditions to them. The purpose of the invention is to provide a graphic display device with a unique design.

(4) Structure of the Invention According to the present invention, the object is to provide a means for storing graphic information of a plurality of types of cursors having different display shapes in a graphic display device; Means for selecting any one of the plurality of types of cursors and displaying it on the display at any time, and means for individually controlling each cursor by adding a code that can identify the type of cursor to the coordinate information of the cursor. This is achieved by a cursor display control method characterized by the following.

(5) Embodiment of the invention FIG. 1 is a block diagram of an embodiment of the invention, in which 1 is a graphic display device, 2 is a host computer, 3 is a keyboard, 4 is a pointing device, and 5 is a switch. , 6 is a main control section, 7 is a memory, 8 is a display control section, and 9 is a display tube.

In FIG. 1, the user inputs commands from the keyboard 3, directs the cursor position using the pointing device 4, and operates the graphic processing program while viewing the screen output on the display tube 9. At this time, the type of cursor can be changed using the switch 5.

FIG. 2 is a diagram showing an example of the display shape of the cursor, in which (,) represents a cross cursor, (b) represents a horizontal cursor, and (C) represents a vertical cursor. As mentioned above, the shapes of these cursors are changed by the switch 5 provided on the keyboard 3 shown in FIG. It is done. In addition, in response to a coordinate reading request from the host computer 2, the graphic display device 1
In addition to the conventional X coordinate, Y coordinate, and control code, the data sent from the cursor type information is newly attached.

To explain an example of how a graphic display device with multiple types of cursors is used, for example, when a screen is divided into top, bottom, left, and right, and each screen is displayed simultaneously for operation, it is difficult to divide the screen. By using the horizontal cursor to indicate vertical division and the vertical cursor to indicate horizontal division, a system with easy and quick operability can be achieved.As another example, When searching for two shapes, for example, by specifying a point on a boundary side with a pointing device and using a program to search for shapes with similar sides, if the boundary side is a horizontal line, the horizontal cursor, vertical line, etc. If you specify the time using a vertical cursor, the number of line segments that the program must search will be greatly reduced, resulting in a highly responsive system.

The shape of the cursor is not limited to the one mentioned above,
It is sufficient if each of the plurality of cursors can be identified.

(6) Effects of the Invention As explained in detail above, according to the method of the present invention, in a graphic display device, it is possible to assign meanings to a plurality of cursors of different shapes and control them independently under different conditions. Since the graphics processing program can be made simple, it is possible to construct a system with good response, and it is also possible for the user to easily and reliably operate even complex processing. The effect is great because it can be done.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a diagram showing an example of the display shape of a cursor. DESCRIPTION OF SYMBOLS 1... Graphic display device, 2... Host computer, 3... Keyboard, 4... Pointing device, 5... Switch, 6... Main control unit, 7... Memory , 8... display control section, 9...
・Display tube

Claims (1)

[Claims] In a graphic display device, means for storing graphic information of a plurality of types of cursors having different display shapes, a means for selecting any one of the plurality of types of cursors to display on a display at any time, and a means for storing graphic information of a plurality of types of cursors having different display shapes; 1. A cursor display control method comprising means for individually controlling each cursor by attaching a code that can identify the type of cursor to coordinate information.