JP2835167B2 - CRT display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a CRT display device used for monitoring a plant system.

(Conventional technology) Conventionally, a CRT display of a complex plant system in which the entire system cannot fit on one display screen uses a screen division system or a scroll system. And the screen including the portion to be viewed is selectively displayed. In the scrolling method, when the display portion is inside the window frame, the window frame is moved to display the portion to be viewed.

(Problems to be Solved by the Invention) The conventional screen division method has a drawback that each screen is fixed and a desired portion cannot be displayed on one CRT when the desired portion is displayed on a plurality of screens.

Further, in the scroll method, the display center position can be changed by the scroll function, but a part to be viewed must be scrolled and searched. When the whole system is large and complicated, it takes a long time to search.

In both cases, since the display magnification of the screen is fixed, the system display according to the display purpose of the monitor, such as displaying a wider range or displaying a narrower range in detail, is performed. I couldn't do that. An object of the present invention is to provide a CRT display device that can quickly display a desired portion from the entire system.

[Configuration of the invention]

(Means for Solving the Problems) The present invention provides a finger position detection unit for detecting the position of a finger with respect to the display surface of a CRT display, and a finger position when the horizontal axis is the X axis and the vertical axis is the Y axis on the display surface. Determined by the display center calculator, the display center calculator that calculates the magnification of the original screen according to the vertical distance from the fingertip to the display surface, and the display center calculator that uses the X, Y coordinates of the display center. A screen editing unit that edits the screen of the display range from the original screen at the magnification determined by the magnification calculation unit at the displayed display center, and a display output unit that displays the result edited by this screen editing unit on the CRT display A CRT display device comprising:

(Operation) In the CRT display device of the present invention, the finger position detection unit uses C
The coordinate positions of the RT display surface and the fingertip are detected, the display center calculation unit calculates the display center of the entire system to be displayed at the center of the CRT display surface from the detected coordinate position, and the enlargement magnification calculation unit detects the display center. The enlargement magnification for the entire system screen is calculated from the coordinate position, the screen editing unit edits the display screen from the entire system screen based on the determined display center and the enlargement magnification, and outputs the display screen from the display output unit.

Example Next, an example of the present invention will be described. FIG. 1 shows a finger position detector 1 for detecting the position of a finger on the display surface of a CRT display.
When the horizontal axis is the X axis and the vertical axis is the Y axis on the display surface, the display center calculation unit 2 that uses the X, Y coordinates of the finger as the center of the display, and the distance in the vertical direction from the fingertip to the display surface A magnifying power calculator 3 for calculating the magnifying power of the original screen in accordance with it, and a screen in the display range from the original screen with the magnifying power determined by the magnifying power calculator 3 at the display center determined by the display center calculator 2 FIG. 1 shows a CRT display device including a screen editing unit 4 that performs the editing and a display output unit 5 that displays a result edited by the screen editing unit on a CRT display. That is, the finger position detection unit 1, display center calculation unit 2, enlargement magnification calculation unit 3, screen editing unit 4, display output unit 5, finger position detection unit 1 is a CRT display surface and finger This is to detect a positional relationship.

Further, the display center calculation unit 2 calculates which of the whole systems is to be the center position of the CRT screen.

The magnification calculator 3 calculates the magnification of the display screen with respect to the entire system screen.

The screen editing unit 4 edits the display screen from the entire system screen so that the display center position given by the display center calculation unit 2 and the enlargement magnification given by the enlargement magnification calculation unit 3 become the same.

The display output unit 5 outputs and outputs the edited display screen.

Next, the operation of the CRT display device having such a configuration will be described.

In FIG. 1, the finger position (X, Y, Z coordinates) with respect to the CRT screen at the time of the display request is detected by the finger position detection unit 1. The display center calculation unit 2 determines which of the whole system screen is to be the center of the CRT display surface from the X and Y coordinates.

FIG. 2 is a perspective view showing a positional relationship between a CRT display surface and a fingertip, where 11 is a CRT display surface, 12 is a display range, 13 is a display center, 14
Is the movement of the finger.

In addition, the magnification calculator 3 calculates the magnification given by the Z coordinate and the magnification function P = f (z) as shown in FIG. The screen editing unit 4 edits the display screen from the entire system screen based on the obtained display center and enlargement magnification, and the display output unit 5 outputs the display screen.

 FIG. 4 is a front view showing an example of the display screen.

〔The invention's effect〕

According to the present invention, it is possible to display an arbitrary point on the entire system screen at an arbitrary magnification by simply changing the fingertip position, so that a target point can be displayed very quickly. .

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a CRT display device showing one embodiment of the present invention, FIG. 2 is an explanatory diagram showing a positional relationship between a CRT display surface and a fingertip, and FIG. FIG. 4 is an explanatory view showing the relationship between magnifications, and FIG. 4 is a front view of a CRT display. 1 finger position detection unit 2 display center calculation unit 3 magnification magnification calculation unit 4 screen editing unit 5 display output unit

Claims (1)

(57) [Claims] 1. A finger position detecting section for detecting a position of a finger with respect to a display surface of a CRT display, and the X, Y coordinates of the finger when the horizontal axis is the X axis and the vertical axis is the Y axis on the display surface. A display center calculation unit as a center of display; a magnification ratio calculation unit for calculating a magnification ratio of an original screen according to a vertical distance from a fingertip to the display surface; and a display center determined by the display center calculation unit. A screen editing unit that edits a screen of a display range from the original screen at the magnification determined by the magnification calculator, and a display output unit that displays the result edited by the screen editing unit on the CRT display. CRT display device provided.