JPH03250209A - Display controller - Google Patents

Abstract

PURPOSE:To easily operate the enlargement and reduction, etc., of a picture by controlling a monitor based on a cursor control signal and a picture control signal so that the instructed position of a cursor in a logical picture cannot get out of the picture to be controlled. CONSTITUTION:While being faced to the picture, a volume switch 8 generates the control signals corresponding to forward and backward directions, namely, enlarging and reducing directions. Based on the cursor control signal and the picture control signal, a CRT control part 12 controls the operation of a CRT 13 so that the instructed position of the cursor in the logical picture cannot get out of the picture to be controlled of the CRT 13. Thus, while moving the cursor by a cursor input part 5, the picture can be enlarged and reduced by the volume switch 8.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to computer aided display (CAD) using CRT, liquid crystal, plasma display, etc.
Design), DTP (Desk Top P
The present invention relates to a display control device in a system such as ``publishlng''.

[Conventional technology]

Conventionally, the display screens in systems such as the above-mentioned CADSDTP have lower resolution than output devices such as laser printers and X-Y plotters, and operators generally repeatedly reduce, move, and enlarge the display screen while inputting and correcting data. I do.

In this work, the display screen is generally operated using a pointing device called a mouse, especially a two-dimensional pointing device.

In FIG. 4, 1 is the mouse, 2 is a menu switch, and 3 is a select switch. In FIG. 4, only the front side of the mouse 1 is shown, so although not shown, the back side is equipped with an input section for moving the cursor.
By moving the mouse 1 in the directions of the x and y coordinate axes, the cursor on the screen can be moved in accordance with the amount of movement in each movement direction. The menu switch 2 is of the type that is click-input with a button, and is used, for example, to display a menu screen on the screen or to select a menu on the menu screen. The select switch 3 is also of the click input type, and its purpose is to designate the location indicated by the cursor as a control target.

Now, let us consider using such a mouse 1 to perform an operation on a logical screen Sl as shown in FIG. 5, for example.

Now, suppose that this logic screen is displayed on the CRT screen as shown in the screen shown by the symbol S■-61 in FIG. Press button 2 to display the menu screen Sm-62. And this switch 2
While holding down the button, move mouse 1 to screen Sg+
- Move the cursor to the "Enlarge" menu in the pop-up menu in 62, release the menu switch 2 button, and select "Enlarge". This will enter magnification mode.

Next, the cursor is used to specify the range of the screen to be enlarged, in this case a rectangular area including the image rABCJ.

That is, first, the user moves the mouse 1 to move the cursor to the starting point of the rectangular area as shown in screen S-63, and then presses the button of the select switch 3.

Next, move the cursor to the end point of the rectangular area as shown in screen Sm-64, and release the button of the select switch 3.

As a result, the image rABc is displayed as shown in screen S■-65.
J will be displayed enlarged.

Next, consider enlarging and displaying the image rYZJ on the screen shown in FIG. 5 from the state where the display screen is as shown in screen 5--65. In this case, there are two main methods: the method shown in FIG. 7 and the method shown in FIG. 8, and these will be explained in order.

First, the method shown in FIG.
-65), move mouse 1 and rY
Move the cursor in the direction where ZJ will be, and
m-72. After going through the steps shown in S-173, the screen Ss
This is to obtain an enlarged screen of the image rYZJ shown in -74.

In addition, the method shown in FIG. 8 is to operate the menu switch 2 to change the screen
The menu screen shown in
■ Display the full screen as shown in -83.

Thereafter, the same operation as when enlarging the image rABcJ is performed to obtain an enlarged display screen of the image rYZJ such as the screen S-84.

As described above, the mouse 1 is easy to operate, and by using it, the operator can reduce, move, and enlarge the display screen without taking his eyes off the screen.

[Problem to be solved by the invention]

However, even though the mouse 1 itself is easy to operate, the scaling operation requires a special procedure as described above, and when viewed as such, the operation is complicated and there is room for improvement.

Also, being able to move the cursor just by moving mouse 1 is a very convenient feature, but
Since the amount of movement matches the physical display scale,
When the logical screen becomes larger and you perform operations such as those shown in Figure 7, the amount of time you have to move the mouse 1 increases as the screen becomes larger, causing the problem that it takes time to move the cursor. be.

The present invention was made in view of these problems, and
The purpose is to provide a display control device that facilitates operations such as enlarging and reducing the screen.

[Means to solve the problem]

The display control device of the present invention includes a pointing device equipped with one volume switch in addition to an input section for cursor movement on the controlled screen, and a pointing device that is displayed on the controlled screen according to input data from the cursor movement input section. a cursor control unit that generates a cursor control signal that moves a cursor indicated position on a logical screen that includes an image; an image control unit that generates an image control signal that scales up and down the logical screen according to input data from the volume switch; and a monitor control section that controls a monitor based on the cursor control signal and the image control signal so that the indicated position of the cursor on the logical screen does not deviate from within the controlled screen.

[For production]

According to the present invention configured in this manner, it is possible to enlarge or reduce the image using the volume switch while moving the cursor using the cursor moving manual unit.

Therefore, an image can be enlarged or reduced without going through troublesome procedures such as operating a menu screen or specifying a cropping area.

Also, if you want to enlarge another image on the same logical screen when the controlled screen is displaying an enlarged image, use the volume switch to reduce the image, or move the cursor while reducing the image. If you move the cursor using the input section, you can move the cursor while the amount of cursor movement is large relative to the amount of operation, and you can use the volume to enlarge the image after the cursor reaches the point where it points to the target image. Therefore, even if you want to enlarge and display another image on the same logical screen from a state where one image is enlarged and displayed, a quick operation is possible.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a display control device of the present invention.

In this figure, 4 is a mouse. This mouse 4 is 3
It is configured as a dimensional pointing device and includes a cursor input section 5, a menu switch 6, a selection switch 7, and a volume switch 8 as also shown in FIG.

If the mouse 4 has a mechanical structure, the cursor input unit 5 can be used to control the movement on each XsV coordinate axis from the rotation of a metal ball attached to the bottom of the back side opposite to the front side as shown in FIG. It outputs a signal representing the amount. In addition, if the mouse 4 is an optical type, the mouse 4 can be moved vertically and horizontally (X).

Slide it on a mouse pad coated with parallel lines at regular intervals (corresponding to y), and use the light-emitting and light-receiving elements on the back side to detect x, y depending on how many times the mouse pad passes the vertical and horizontal lines. It detects the amount of movement in the direction and outputs a signal representing the amount of movement.

The menu switch 6 and select switch 7 have the same functions as the menu switch 2 and select switch 3 shown in FIG. 4, and output a signal indicating whether the switch is pressed or not.

The volume switch 8 faces the screen and generates a control signal corresponding to the front-rear direction, that is, the enlargement/reduction direction.

9 is a cursor control section. The cursor control section 9 generates a cursor control signal for moving the cursor indicated position on the logical screen including the image displayed on the controlled screen according to the input data from the cursor input section 5.

10 is an image control section. The image control section 10 generates an image control signal for enlarging or reducing the logical screen according to input data from the volume switch 8.

Reference numeral 11 denotes a click input control section, and this control section 11 processes the signals from the menu switch 6 and the select switch 7, such as waveform shaping, and supplies them to the next stage circuit.

12 is a CRT control section. This CRT control section 12 is
It has a function of controlling the operation of the CRT 13 based on the cursor control signal and the image control signal so that the indicated position of the cursor on the logical screen does not deviate from within the controlled screen of the CRT 1ml.

According to the device configured in this way, the cursor input section 5
Polyneme switch 8 while moving the cursor
This makes it possible to scale up and down the image.

Figure 3 explains an example of operation. First, screen S■-3
Image r in 1 (screen in full-screen display state of logical screen)
To enlarge ABCJ, move the mouse 4 to move the cursor to the upper left side of rAJ of image rABCJ, and then slide the slider, which is the control for volume 8, in the enlargement direction to display screen Ss-32.
You can get an enlarged display like this.

Next, if you want to enlarge the image rYZJ from the state of this screen S - 32, first operate the volume 8 and move the cursor while reducing it as shown in the screen Ss - 32, until this cursor approaches the image rYZJ. If the cursor is moved to the lower right of rYJ of image rYZJ while operating the volume 8 in the enlargement direction, an enlarged display of rYZJ will be obtained as shown in screen 8-34.

In this way, it is possible to enlarge or reduce an image without going through troublesome procedures such as operating the menu screen or specifying the cropping area, and it is possible to change the size of the image from the state where the controlled screen is displaying an enlarged image. If you want to enlarge another image on the same logical screen, use the volume switch to reduce the image while moving the cursor, and when the cursor reaches the target image, use the volume to enlarge it. Therefore, even if you want to enlarge and display another image on the same logical screen from a state in which a certain image is enlarged and displayed, a quick operation is possible.

〔Effect of the invention〕

As explained above, according to the present invention, the display is controlled by using a three-dimensional pointing device so that the cropping position of the screen corresponds to the x and y coordinates, and the cropping size corresponds to the Z coordinate. Therefore, it is possible to enlarge or reduce an image without going through troublesome procedures such as operating a menu screen or specifying a cropping area.

Also, if you want to enlarge another image on the same logical screen when the controlled screen is displaying an enlarged image, use the volume switch to reduce the image, or move the cursor while reducing the image. If you move the cursor using the input section, you can move the cursor while the amount of cursor movement is large relative to the amount of operation, and you can use the volume to enlarge the image after the cursor reaches the point where it points to the target image. Therefore, even if you want to enlarge and display another image on the same logical screen from a state where one image is enlarged and displayed, a quick operation is possible.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an embodiment of the display control device according to the present invention, Fig. 2 is an external view of the mouse, and Fig. 3 is for explaining an example of screen scaling operation when using this device. Figure 4 shows the explanation of 2, which is conventionally used in display control.
External view of the dimensional mouse, Figure 5 is a conceptual diagram of the logical screen, Figure 6
8 are explanatory diagrams for explaining examples of conventional enlargement/reduction operations. 4... Mouse, 5... Cursor input unit, 8... Volume, 9... Cursor control unit, 10... Image control unit, 12... CRT control unit, 13... CRT.

Claims (1)

[Claims] A pointing device that includes one volume switch in addition to an input section for moving a cursor on the controlled screen, and an image displayed on the controlled screen according to input data from the input section for moving the cursor. a cursor control unit that generates a cursor control signal that moves a cursor indicated position on a logical screen that includes the cursor; an image control unit that generates an image control signal that scales the logical screen according to input data from the volume switch; A display control device comprising: a monitor control unit that controls a monitor based on a control signal and the image control signal so that the indicated position of the cursor on the logical screen does not deviate from within the controlled screen.