JPH06295328A - Method and device for controlling display - Google Patents

Abstract

PURPOSE:To provide a screen operation method capable of easily transmitting operator's display position change or retrieving purpose to a system. CONSTITUTION:When positional information is inputted to a position input means 1702, a display position control means 1706 controls a display position in accordance with the inputted positional information and accesses a display scale setting means 1712. The means 1712 determines a display scale and a display scale control means 1708 controls the display scale in accordance with the determined display scale. Since the visual range of a picture is expanded during the movement of a screen, a position can easily be grasped. Since the moving speed of the screen is not increased even when a picture is reduced, the visibility of the screen is also improved. In addition, picture reducing/ enlarging operation can be executed without requiring an excess input, so that operability is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for changing the display range of contents to be displayed on the screen of a display device using a computer.

[0002]

2. Description of the Related Art A computer user operates a computer software to retrieve a desired file from an auxiliary storage device connected to the computer or retrieve a desired data range in the retrieved file. I often do it. Generally, the size of the screen of the display device of the computer is limited, and in order to display the data that cannot be displayed on the screen and browse the contents, or to check the whole, the above software has a screen scroll function or It has a reduction function. It also has a screen enlargement function to see the details in detail.

For example, in a word processor, a graphic editing system, etc., when a user wants to see information on a specific position of a document, if the range of the displayed document does not include the information, a keyboard is used. The input range such as the cursor keys and the mouse is used to instruct scrolling of the screen and change the display range. When one page of the document cannot be displayed on the screen, the entire page of the document is displayed by using the screen reduction function. After moving to the display range that the user wants to see, a part of the display range is further enlarged by using the enlargement function of the screen in order to see the information of the range in more detail.

In addition, an X window system developed by AT & T Corp. in the US as a computer having a display range changing function in the basic software and MS by Microsoft Corp.
-Windows, etc. These have display units called windows. A window can display an image inside it. The window can handle an image larger than the display range, but the contents actually displayed are limited to the inside of the window. There are scroll bars on the left and right sides of the window to input the display position.By operating the scroll bars up, down, left and right, you can change the display range of the image and operate the buttons at the four edges of the window to display the window itself. Change the display position of.

[0005]

The above-mentioned conventional method has the following problems. First, it is easier to search if you enlarge the displayable area of the screen when performing a search and enlarge the display content when looking at details, but the user may change the size of the screen each time. , If the screen is scaled up or down, extra input operations are required. Secondly, since the operator wants to move the display position farther than the current display position, if a long screen movement operation is required, the current display position will be anywhere on the whole while performing the movement operation. You may lose sight of it. Thirdly, when trying to move the screen fast, the moving speed of the screen during scrolling is high, which makes it difficult to visually recognize the screen and may overlook the intended screen. As described above, the conventional screen operation method has a problem in that it is difficult to convey the intention of the operator to change the display position or to search the system.

It is an object of the present invention to provide a method and apparatus capable of performing a screen size operation or an enlargement / reduction operation without extra input operation while moving a display position. It is another object of the present invention to provide a screen control method and device that facilitates grasping the position of the display screen even when the display position is moving. It is still another object of the present invention to provide a screen control method and device that have good visibility of the display screen even when the display position is moving.

[0007]

According to the present invention, when position information of display information is input, the display magnification corresponding to the amount of change in the input display position data with respect to the display position before input,
The display information is read from the display information storage means, and the display magnification of the display information is controlled by the read display magnification. Further, in the case of the text processing device, the display font corresponding to the amount of change is read from the display information storage means and the display font is changed.

[0008]

When the amount of change in the input display position data with respect to the display position before the input is large, the display magnification on the screen is relatively increased by decreasing the display magnification, and the amount of change in the position is the display magnification. Becomes smaller by As a result, when the operator moves the screen, the operator can check the screen while looking at a wider area than when the screen is stationary, and the position can be easily grasped. Further, since the moving speed of the screen does not increase even if the amount of change in position is large, the visibility of the screen itself is improved.

Also, since the display information is enlarged by enlarging the display magnification when the amount of change in position is small, the details of the display information can be promptly confirmed even if the operator stops the screen.
Further, since the above-mentioned magnification setting does not require an extra input by the operator, the operability is improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing the embodiments of the present invention in detail, the difference in the configuration between the present invention and the prior art will be described.

The operation of the conventional system will be described with reference to FIG. 2, and the difference from the conventional system will be described with reference to FIG. 1 showing the system configuration of the present invention.

In the case of the conventional system shown in FIG. 2, when display position information is input from the display position input means 1702, the display position control means 1706 interprets the position information and a display corresponding to the position information is displayed from the display information storage means 1710. The information is extracted and output to the display device 1704. Further, when the display magnification is input from the display magnification input means 1802, the display magnification control means 1706 reduces or enlarges the display information retrieved from the display information storage means 1710 by the display magnification and outputs the display information to the display device 1704.

In the system configuration of the present invention shown in FIG. 1, display magnification setting means 1712 is provided in the conventional system configuration,
The display magnification can be controlled without the display magnification input unit 1802.

An embodiment in which the present invention is applied to an image editing system will be described below.

FIG. 3 is a system configuration of the present embodiment, FIG. 4 is an example of a conventional scroll screen, FIG. 5 is an example of the scroll screen of the present embodiment, and FIG. 17 is a relationship between a display magnification and a display range with respect to a scroll speed in the conventional case. FIG. 18 is a diagram showing the relationship between the display magnification and the display range with respect to the scroll speed in this embodiment.

First, the structure of this embodiment will be described with reference to FIG. In FIG. 3, the CPU 106 operates according to each program stored in the memory 116, and the memory 1
16 stored in the memory 16 or data input from the input device 102 via the input device interface 104, and the result is written to the memory 116 or output device interface 110. The contents of the memory 116 are displayed on 108, and the data stored in the disk device 11 is read and written via the disk interface 14.

The memory 116 stores the input judgment program 1
18, file input / output program 120, image editing program 122, image reduction program 124, scroll processing program 126, clip area information table 12
8, display target image storage area 130, time information storage area 1
32, and a speed-display magnification conversion table 136 are stored.

In the image editing system, the input judging program 118 is first activated, the data inputted from the input device 102 is taken out, and the image editing program 122 and the file input / output program 12 are fetched according to the contents thereof.
0, or the scroll processing program 126 is activated. The file input / output program 120 extracts image data from the disk device 11 according to the input data, stores it in the display target area storage area 130, and displays the image data in the area 130 on the output device 108. Further, the program 120, conversely, writes image data from the display target area storage area 130 to the disk device 11. The image editing program 122 updates the contents of the display target area storage area 130 according to the input data, and outputs the result to the output device 108.
To display. The scroll processing program 126, in accordance with the contents of the input data, the clip area information table 128, the display target image storage area 130, the time information storage area 132, and the speed-display magnification conversion table 136, the display magnification determination program 134 and the image. The scaling program 124 is called to reduce the image, display a new display image on the output device 108, and update the contents of the clip area information table 128 and the time information storage area 132.

This embodiment shown in FIG. 3 is different from the conventional example in that
Display magnification determination program 134, time information storage area 13
2 and a speed-display magnification conversion table 136 are provided. Program 134, area 1 of FIG.
A combination of 32 and the table 136 corresponds to the display magnification setting means 1712 in FIG.

Next, the difference between the conventional scroll method and the scroll method of the present embodiment will be described with reference to FIGS. 4, 5, 17, and 18. The conventional scroll screen example shown in FIG. 4 includes a scroll screen 402, a vertical scroll bar 404, a horizontal scroll bar 405, a clip area 406, and an image 408 displayed on the scroll screen. A portion 410 of the image 408 is displayed in the clip area 406. Which part of the image 408 is displayed depends on the scroll bars 404, 40.
It depends on the position of 5. For example, when the operator moves the scroll bar 404 upward, the display image in the clip area 406 moves from the broken line 410 to the area indicated by the solid line 412.

When moving the image displayed on the screen in the conventional system, if the operator moves the scroll bar 404 fast, the image moves fast in proportion to the speed. But,
Since the display range of the image does not change, the image appearing on the screen disappears immediately. Therefore, since the user overlooks the place he wants to move, the visibility is reduced. In the present embodiment, in order to solve this problem, the image displayed on the screen is reduced in accordance with the moving speed of the image and the display range of the image is enlarged.

FIG. 5 shows an example of a scroll screen in this embodiment. Similar to FIG. 4, an image 408 is displayed in the clip area 406. Operator scroll bar 4
When 04 is moved upward, the moving speed of the scroll bar at that time is detected, the image is reduced to the display magnification determined in advance corresponding to the moving speed, and the image 502 having a wider range than the display image 412 of the conventional example is displayed. The original display range frame 504, which is displayed in the clip area and is not reduced, is also displayed.

17 and 18 show the relationship between the display magnification and the display range with respect to the moving speed in the prior art and the present invention. The horizontal axis 202 of the graph represents the scroll speed, and the vertical axis 204 of the graph represents the display magnification and display range of the image. In the conventional case shown in FIG. 17, since the image is not reduced even during scrolling, the display magnification is 100% and the display range does not change regardless of the scroll speed. On the other hand, in the case of the present invention shown in FIG. 18, the display magnification decreases as the scroll speed increases, and the display range at that time increases by the reciprocal of the display magnification. At this time, the same effect can be obtained even if the display magnification and the display range are changed continuously with respect to the scroll speed as shown by the graph 302 or stepwise as shown by the graph 304. The display magnification is set within a certain range as shown in FIG. 18 so that the display contents can be confirmed even if the scroll speed increases. When the user scrolls the screen, if the display range is wide, it is easy to scroll while checking the image, and the visibility can be improved.

The processing procedure of each component module shown in FIG. 3 will be described below. FIG. 6 is an example of the speed-display magnification conversion table 136. The speed-display magnification conversion table 136 is a table for obtaining the display magnification of an image from the detected scroll speed, and includes a scroll speed upper limit 604 and a display magnification 606, and the graph 304 in FIG. 18 is obtained from this table. Although the table is used here, the relationship between the speed and the display magnification can be represented by a calculation formula, and a continuously changing display magnification can be obtained as in Graph 302 in FIG.

FIG. 7 shows an example of the clip area information table 128. The clip area information table 128 is a table for managing the clip area 502.
An x coordinate 704, ay coordinate 706, a width 708 and a height 710 of the area 502, and a display magnification 712 on the screen.

FIG. 8 is a flow chart showing the processing when the screen is scrolled. In the course of the processing shown in FIG. 8, each processing program shown in FIG. 3 is activated. First, the input determination program 118 receives the scroll input amount (step 802). The scroll input amount includes a vertical required movement amount and a horizontal required movement amount. When the vertical scroll bar 404 is operated, the required vertical movement amount is input, and when the horizontal scroll bar 405 is operated, the horizontal required movement amount is input. Input judgment program 11
8 is a scroll processing program for the scroll input amount 12
6 (step 804). Next, the scroll processing program activates the display magnification determination program 134, and calculates the position information and the display magnification of the image to be displayed next (step 806). Next, the image reduction program 124 is activated to reduce the image at the calculated position (step 80).
8) and display it on the output device 108 (step 810).

FIG. 9 is a flowchart of the display magnification determining program 134. First, the amount of scroll input is received from the display area determination program (step 902).
The present time is fetched from the timer 904, the previously stored time is fetched from the time information storage area 132, and the difference is calculated (step 906). If the previous time is not stored, the previous time is set to 0. The current time is stored in the time information storage area 132 (step 90).
8). The scroll speed is obtained by dividing the scroll input amount by the difference between the current time and the previous time, and the display magnification corresponding to the scroll speed is calculated by the speed-display magnification conversion table 13
6 (step 910). The position information of the currently displayed image is extracted from the clip area information table 128, and the display position of the next image is calculated from the scroll amount, the position information of the image, and the display magnification (step 9).
12). When changing the display magnification of the image, the size of the screen to be displayed does not change, so the image range is the reciprocal of the display magnification. Finally, the scroll processing program 126
Then, the obtained display range and display magnification are passed and the control is returned (step 914).

FIG. 10 is a schematic diagram of the calculation of the display image range. The display image range is enlarged in the scroll movement direction. For example, in the case of upward movement, the middle point 1 of the lower side of the range displayed by conventional scrolling that does not change the size of the display range
The display range is expanded around 002.

According to the present invention, when the display position of an image is greatly changed, it is possible to move while looking at a wider range of images, so that it is less likely to overlook when searching for a target. Further, in the above example, the display range of the image is expanded by reducing the image, but the same effect can be obtained by expanding the display area itself of the output device. When it is necessary to enlarge the display image range by scrolling, if the display range of the output device can be displayed without reducing the image range, it is easier to enlarge the display region itself of the output device. is there.

The value of the speed-display magnification conversion table may be changed according to the ratio of the display range of the output device and the size of the display image. If the display image is not so large compared to the display range, increase the display magnification, and if the display image is large, lower the display magnification to avoid unnecessary reduction and make the image easier to read. Become. Further, although the processing is limited to the reduction in the above example, the search location can be confirmed in more detail by adding the enlargement processing program and performing the enlargement processing when the scroll is stopped.

The same effect can be obtained by applying the present invention when the data to be displayed is text data and switching the font size of the character according to the change of the scroll speed. A second embodiment in which the present invention is applied to a text processing system will be described below. FIG. 11 is the second
FIG. 12 is a system configuration diagram of this embodiment, and FIG. 12 is an example of a scroll screen of this embodiment. First, the system configuration of this embodiment will be described with reference to FIG.

In FIG. 11, the CPU 106 is a memory 1
16 operates according to a program stored in the memory 16 and performs an operation on the data stored in the memory 116 or the data input from the input device 102 via the input device interface 104, and stores the result in the memory 116. Write, display on output device 108 via output device interface 110, disk interface 1
The data stored in the disk device 112 is read and written via 14.

In the memory 116, an input determination program 118, a file input / output program 120, a text editing program 1122, a text bitmap generation program 1124, a scroll processing program 126, a font size determination program 1134, a display text information table 1128, a display. Target text storage area 113
0, time information storage area 132, speed-font size conversion table 1136, and display target text storage area 1
130 is stored.

In the text editing system, the input judging program 118 is first activated, the data inputted from the input device 102 is taken out, and the text editing program 1122, the file input / output program 120, or the scroll is executed according to the contents. The processing program 126 is activated. The file input / output program 120 extracts text data from the disk device 11 according to the input data, stores it in the display target text storage area 1130, and displays the contents of the area 1130 on the output device 108.
Further, the program 120, conversely, writes the text data from the display target text storage area 1130 to the disk device 11. The text editing program 1122 updates the contents of the display target text storage area 1130 according to the input data, and displays the result on the output device 108. The scroll processing program 126, in accordance with the contents of the input data, the display text information table 1128, the display target text storage area 1130, the time information storage area 132, and the speed-font size conversion table 1136, the font size determination program 1134 and the text bitmap generation. Call program 1124 to call program 1
The display image of the text is generated using the information of the font image storage area 138 of 124, the new display image is displayed on the output device 108, and the contents of the display text information table 1128 and the time information storage area 132 are updated. .

The present embodiment shown in FIG. 11 is characterized in that a font size determination program 1134, a time information storage area 132, and a speed-font size conversion table 1136 are provided as compared with the conventional example. The program 1134, the area 132, and the table 113 in FIG.
The combination of 6 is the display magnification setting means 1 in FIG.
712.

FIG. 12 shows a scroll screen display example in the case of this embodiment. When the scroll bar 1201 is moved downward, as the moving speed increases, the screen 1202
Therefore, the font of the text becomes smaller, such as 1204 and 1206, and a wider range of text can be displayed.

The processing procedure of each component module will be described below. FIG. 13 is an example of the speed-font size conversion table 1136. The speed-font size conversion table 1136 is a table for determining the font size of the text from the detected scroll speed, and includes a scroll speed upper limit 1304 and a font size 1306.

FIG. 14 shows the display text information table 112.
8 is an example. The display text information table 1128 is
It is a table for managing the information of the text actually displayed on the screen, and is the position of the display text area 1416 in the entire text 1414, that is, the column position 1404 and the line position 1
406, area digit number 1408, line number 1410, and font size 1412.

FIG. 15 is a flow chart showing the processing when the screen is scrolled. In the course of the processing shown in FIG. 15, each processing program shown in FIG. 11 is activated. First, the input determination program 118 receives the scroll input amount (step 1502). The scroll input amount includes a vertical required movement amount and a horizontal required movement amount. When the vertical scroll bar is operated, the required vertical movement amount is input, and when the horizontal scroll bar is operated, the horizontal required movement amount is input. Input judgment program 1
18 is a scroll processing program 1 for the scroll input amount
26 (step 1504). Next, the scroll processing program is the font size determination program 1134.
Is started and position information and font size of the text to be displayed next are calculated (step 1506). Next, the text bitmap generation program 1124 is activated, the text at the calculated position is converted into a display image (step 1508), and the image is displayed on the output device 1108 (step 1510).

FIG. 16 is a font size determination program 1
13 is a flowchart of 134. First, the font size determination program 1134 receives the scroll input amount (step 1602). The current time is retrieved from the timer 904, the previously stored time is retrieved from the time information storage area 132, and the difference is calculated (step 1
606). If the previous time is not stored, the previous time is set to 0. The current time is stored in the time information storage area 13
2 (step 1608). The scroll input amount is divided by the difference between the current time and the previous time to obtain the scroll speed, and the font size corresponding to the scroll speed is fetched from the speed-font size conversion table 1136 (step 1610). The position information and font size of the currently displayed text are extracted from the display text information table 1128, and the display position of the next text is calculated from the scroll amount, the position information of the text, and the font size (step 1612). When the font size of the text is changed, the size of the screen to be displayed does not change, so the display range of the text is the reciprocal of the ratio of the font size. Finally, the obtained display range and font size are passed to the scroll processing program, and control is returned (step 1614).

[0041]

As described above, according to the present invention, when the amount of change in the input display position data with respect to the display position before input is large, the display magnification is reduced to relatively expand the display range on the screen. Also, the amount of change in position is reduced by the display magnification. As a result, when the operator moves the screen, the operator can see the screen while looking at a wider area than when the screen is stopped, and the position can be easily grasped. Further, since the moving speed of the screen does not increase even if the amount of change of the scroll is large, the visibility of the screen itself is improved.

When the amount of change in the scroll is small,
Since the display magnification is increased to enlarge the display information, when the operator holds the screen still and confirms the display information, the contents can be viewed in detail. Further, since the above-mentioned magnification setting does not require an extra input by the operator, the operability is improved.

[Brief description of drawings]

FIG. 1 is a system configuration of the present invention.

FIG. 2 is a conventional system configuration.

FIG. 3 is a system configuration of one embodiment of this embodiment.

FIG. 4 is an example of a scroll screen display of this embodiment.

FIG. 5 is a conventional scroll screen display example.

FIG. 6 is an example of a speed-display magnification conversion table.

FIG. 7 is an example of a clip area information table.

FIG. 8 is a flowchart of the entire processing in this embodiment.

FIG. 9 is an example of a flowchart of processing of a display area determination program.

FIG. 10 is a schematic diagram of determining a display image range.

FIG. 11 is an example of a system configuration of another embodiment of the present invention.

FIG. 12 is a display example of a scroll screen according to the present embodiment.

FIG. 13 is an example of a speed-font size conversion table.

FIG. 14 is an example of a display text information table.

FIG. 15 is a flowchart of processing of the present embodiment when scroll input is performed.

FIG. 16 is a flowchart of processing of a font conversion program.

FIG. 17 shows the relationship between the display magnification and the display range with respect to the scroll speed in the conventional case.

FIG. 18 is a relationship between the display magnification and the display range with respect to the scroll speed in the present embodiment.

[Explanation of symbols]

1702 ... Display position position input means, 1704 ...
Display device, 1706 ... Display position control means, 1708
Display magnification control means, 1710 Display information storage means, 1712 Display magnification setting means, 102
Input device, 104 ... Input interface, 106 ...
..CPU, 108 ... Output device, 110 ... Output interface, 112 ... Disk device, 114 ...
..Disk interface, 116 ... Memory, 1
18 ... Input determination program, 120 ... File input / output program, 122 ... Image editing program,
124 ... Image reduction program, 126 ... Scroll processing program, 128 ... Clip area information table, 130 ... Display target image storage area, 132 ...
.... Time information storage area, 134 ... Display area image conversion program, 136 ... Speed-display magnification conversion table.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location G09G 5/36 8121-5G

Claims (6)

[Claims] 1. A display device, an input device for inputting the position of display information, a display position control means for controlling the position of the display information, a display information storage means for managing the display information, and a display magnification of the display information. An information processing apparatus having a display magnification control means for controlling the information processing apparatus includes a display magnification setting means for setting a display magnification according to the input display position data. 2. The information processing apparatus according to claim 1, wherein the display information is text information, and the display magnification is a display font size of text. 3. A display device, an input device for inputting the position of display information, a display position control means for controlling the position of the display information, a display information storage means for managing the display information, and a display magnification of the display information. The information processing apparatus having the display magnification control means converts the display magnification according to the input display position data when the position of the display information is input, and controls the display information using the converted display magnification. A display control method characterized by the above. 4. The display control according to claim 3, wherein when the amount of change in the input position with respect to the display position before input is large, the display magnification is decreased, and when the amount of change is small, the display magnification is increased. Method. 5. When the ratio of the size of the display information to the size of the displayable area on the display device is large,
The display control method according to claim 3, wherein the display magnification is decreased, and when the ratio is small, the display magnification is increased. 6. The display control method according to claim 3, wherein when the displayable area of the display device is expandable, the area is expanded instead of changing the display magnification.