JPH056367A - Method and device for displaying image - Google Patents

Abstract

PURPOSE:To always display also the periphery of a position operated by an operator in addition to the operated position during the period of editing work by an editor/word processor or the like. CONSTITUTION:A picture to be displayed has the size of a picture 201 against a picture 202 enabled to be displayed. In the above case, only a part of the picture 201 is displayed on the picture 202 and an area to be displayed is selected so that a cursor indicating a target being processed at present is surely positioned near the center of a picture 601. Namely the picture 601 is displayed so that the picture 601 is moved in accordance with the movement of the cursor. When there is no data to be displayed in areas 413, 415, 416, data around the cursor are displayed by displaying an area 412 and areas 414, 416 in the next page which are logically identical.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device having a display as an output device such as a computer and a word processor.

[0002]

2. Description of the Related Art Recently, in computers and word processors, the amount of information to be displayed has increased along with the improvement in performance. Therefore, the size of the screen (actual screen) of the display equipped in those devices is the image to be displayed. It may not be possible to display all. Therefore, the image to be displayed is assumed to be a logical screen (logical screen), a part of it is displayed on the actual screen, and the display range can be set arbitrarily on the logical screen to display the entire logical screen. The method that was made possible has become common sense.

For example, in the case of a word processor, A4 paper 1
There is no problem as long as it can display one page on one screen, but the low-priced small display does not have that much display capacity. Figure 8
8A, if the size of the screen 201 in FIG. 8A is required to display one page of A4 paper, the actual display screen is the screen of FIG. 8B. Only the size of about 202 can be displayed.

Therefore, it is assumed that the screen 201 of FIG. 8A is a logical screen (logical screen) capable of displaying one page of A4 paper at one time, of which an actual screen (real screen) is displayed by the display capacity of the screen 202. ) Is displayed. In FIG. 8C, a real screen 202 surrounded by a dotted line frame is a portion actually displayed with respect to the logical screen 201. By doing so, the portion displayed on the real screen on the logical screen can be processed by moving the current operation position (cursor).

The problem is the data processing of points on the logical screen that are not displayed on the real screen. For this reason, various methods have been put into practical use, but there are the following general methods.

When inputting text with a word processor,
Initially, the logical screen 201 and the actual screen 202 are shown in FIG.
As shown in (c), the cursor is at position 80
1 (hereinafter, 801 to 807 indicate positions on the logical screen). The cursor moves to the right by one character each time one character is input. In this way, when the cursor moves to the position 802 corresponding to the right end of the actual screen, the next 1
When a character is input, the real screen 202 is moved to the right by one character on the logical screen 201 as shown in FIG. 8D, and the cursor is also moved to the position 803 on the logical screen 201 by one character. After that 1
Each time a character is input, the real screen and the cursor move one character to the right with respect to the logical screen, move to the end of the line, and the right side of the logical screen 201 and the real screen as shown in FIG. The right side of 202 overlaps. At this time, the cursor is at the position 804.

This completes the input of the first line. The next character is moved to the second line. At that time, the state returns to the state of FIG. 8C, and the cursor moves to the position 805.

In this way, character input is repeated one after another,
When the cursor comes to the position 806 in the state of FIG. 8E, the next one character input causes the real screen 202 to move to the left end of the logical screen 201 as shown in FIG. Move to. At this time, the cursor moves to the cursor arrangement 207.

As described above, by moving the real screen on the logical screen according to the movement of the cursor, it is possible to display an arbitrary position on the logical screen and perform data processing.

[0010]

However, in the conventional method as in the above example, the cursor often goes to the edge of the actual screen or to the vicinity thereof. In such a case, the information in the vicinity of the cursor will be partially displayed. When inputting or editing a document with an editor such as a word processor or personal computer, since the input or editing is performed while referring to the information near the cursor, if that information is hidden, the work becomes difficult to do. .

Further, in order to solve the above-mentioned problems, if the operator focuses on the portion of interest and displays the periphery thereof, as shown in FIGS. 9 (a) to 9 (h), Although the logical screen 201 can be displayed on the real screen 202 centering on the cursor 901, when the cursor is located at the corner of the logical screen as shown in FIGS. 9A to 9D, the display screen is not used efficiently. .

The present invention has been made in view of the above-mentioned conventional example, and provides an image display method capable of improving the efficiency of work by always displaying a part of the operator's attention and its substantial peripheral image. The purpose is to do.

[0013]

In order to achieve the above object, the image display method and apparatus of the present invention has the following constitution.

A determination step of determining a data area to be displayed centering on a desired point in the image data area, and a determination step of determining an area out of the image data area among the areas determined in the determination step. And an assignment step of assigning another area of the image data to the area determined to be protruding in the determination step.

Further, a determining means for determining a data area to be displayed centering on a desired point in the image data area, and a determination for determining an area out of the image data area among the areas determined by the determining means. And means for allocating the other area of the image data to the area determined to be protruding by the determination means.

[0016]

With the above construction, a display image is formed from the image data centering on a desired point, and another image data is displayed in the portion outside the image data in the display image.

[0017]

In order to solve the above-mentioned conventional example, the image display method and apparatus of the present invention have the following configuration.

[0018]

[Action]

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A word processor which is an embodiment of the present invention will be described below with reference to the drawings.

<Structure> FIG. 1 is a diagram showing the structure of the word processor device of this embodiment. Reference numeral 102 denotes a main body of the apparatus, which stores data input from the keyboard 101 in the memory 1
05, processes it, and stores it in the memory 105 again. The memory 105 stores not only data but also a program for processing the data or controlling the device. The CPU 104 controls the device and processes data according to a program in the memory 105, and inputs from the keyboard 101 and the display 10
3. Controls output to the printer 106.

In the word processor device having such a configuration, a process when the display 103 cannot completely display one page of the document being edited will be described.

<Description of Processing> FIGS. 2 to 5 show examples of the relationship between the real screen and the logical screen by the word processor of the embodiment. In the figure, 201 is a logical screen, 202 is a real screen, and 203 is a cursor.

In this example, the cursor is always positioned at the center of the real screen, and the protrusion distance of the real screen 202 for displaying the frame of the logical screen 201 is one character. That is,
When the frame of the logical screen is covered by the real screen as shown in FIG. 2A, a width of one character is required to display the frame. First, when the cursor 203 is located at the upper left corner of the logical screen 201 as shown in FIG. 2A, the actual screen 202 displays the logical screen 201 at the lower right as shown in FIG. In the figure, since the area 211 is outside the logical screen frame, character data does not exist. However, the input of the word processor is done from left to right of each line, and the line is inserted (down one step) at the input after reaching the right end,
Considering the process input from the left end, the area 21
Substantial data of 1 may be considered to be in area 210.

Thus, by displaying the data in the area 210 as the substantial data in the area 211 on the real screen, the data in the vicinity of all directions of the cursor can be referred to, and the efficiency of the input work and the editing work can be improved. Goes up. However, if this page is the first page, there is no previous page and there is no document data (there is data indicating that it is the top of the first page), and a diagonal line indicating the outside of the frame of the logical screen 201 is displayed. It will be. In that respect, it is efficient when all the areas 213 outside the frame of the logical screen 201 can be replaced with the areas 212 and incorporated into the real screen 202 as shown in FIG. 2B.

From this state, the cursor moves one character to the right each time one character is input, and the actual screen 202 becomes the logical screen 201 like the cursor 203 in FIG. 3A.
When it is projected to the left side of, the actual data of the area 311 can be considered to be in the area 310.
The data of the area 310 may be displayed in the portion corresponding to the area 310 on the upper side. The same applies to FIG. 3 (b),
The data of the area 312 is displayed in the portion corresponding to the area 313 of the actual screen.

As shown in FIG. 4A, when the document of the next page exists and the actual screen 202 extends beyond the lower side of the logical screen 201-1, the substantial data in the area 410 is the area. It is in the upper part of the logical screen 201-2 of the next page overlapping with. Therefore, the data of the area may be fetched and displayed on the real screen 202. Further, when the corner of the logical screen 201-1 is displayed on the real screen 202 as shown in FIG. 5B, the protruding portions 413 and 415 are the areas 41 and 41, respectively.
By displaying 2.414, the appearance as a document can be maintained. The area 416 displays the portion projected on the actual screen by connecting the logical screen 201-2 on the next page as it is. However, as shown in FIG. 4C, the logical screen 2 of the final page
When the real screen 201 extends below 01, since there is no data in the area 417, a display that can identify the outside of the frame is displayed there.

The same applies to the case where the previous page exists as shown in FIG. 5A and the actual screen 202 extends above the logical screen 201-2. The data of the area 510 where the actual screen 202 overlaps is displayed. FIG. 5B can be considered similarly to FIG. 4B, and the area 516 stores the data of all pages in the area 513.
In 515, the data of the areas 512 and 514 on the logical screen 201 is fetched and displayed on the real screen.

For the purpose of detailed explanation, the word processor of this embodiment edits a document of 30 (characters) × 40 (lines) per page, and an arbitrary position on the logical screen corresponding to the page is edited. It will be expressed in XY coordinates. That is, the position of each square 502 in FIG.
3 and the Y-axis 504 are scaled, the first column of the first row (first character) is [1,1], the second column of the first row (second character) is [2,1]. The third column (third character) of the first line is [3,1]: The thirtieth column (third character) of the first line is [30,1] The first column (first character) of the second line is [1,2]: 30th column (30th character) of 2nd row [30, 2]: 1st column (1st character) of 40th row [1,40]: 30th column of 40th row The eye (30th character) is defined by [X, Y] such that [30, 40]. At this time, the coordinates in the logical screen 501 are [X, Y; 1 ≦ X ≦ 30, 1 ≦ Y ≦ 4.
0] and the coordinates [X, Y; X <0 or X> 30, Y
<0 or Y> 40] represents outside the logical screen.

Similarly, as shown in FIG. 11, the real screen (display screen) 601 of this word processor is set to a size of 20 × 20, and the character position 602 on the screen is set to the x-axis 603 and the y-axis 6.
It is represented by coordinates (x, y) by 04. However, the outside of the screen is not considered on the actual screen. That is, the values of x and y are always (x, y; 1 ≦ x ≦ 20, 1 ≦ y ≦ 20).

In the above configuration, in the conventional example, the cursor position on the actual screen changes depending on the state at that time.
Even if the cursor is fixed at a specific position on the logical screen, the cursor position on the real screen is not specified. Therefore, in order to display the cursor on the real screen, it is necessary to determine many states.

According to the present embodiment, the cursor position on the real screen 601 is set to the center portion 605 ((10, 10) in this example).
The information around the cursor can be always referred to, and at the same time, it is not necessary to determine many states as described above.

For example, when the cursor is at the coordinate [15, 15] on the logical screen 501 as shown in FIG. 12, the cursor is present at the coordinate (10, 10) on the real screen 601 and is displayed on the real screen 601. The area of the logical screen 501 is [15- (10-1), 15- (10-1)] = [6,6] * () indicates the cursor position on the real screen and the upper left corner [1,1 ] [15+ (20-10), 15- (10-1)] = [25,6] * () indicates the difference between the cursor position on the real screen and the upper right corner [20,1] [15- (10-1), 15+ (20-10)] = [6,25] * () indicates the difference between the cursor position on the real screen and the lower left corner [1,20] [15+ (20 -10), 15 + (20-10)] = [25,25] * () indicates the cursor position on the actual screen and the right 4 points of the difference between the corner [20, 20] where it was surrounded by (the black part of the figure), that is,
[X, y; 6 ≦ x ≦ 25, 6 ≦ y ≦ 25]. The display screen at this time is as shown in FIG.
In FIG. 15, reference numeral 151 denotes a display frame of the display 103, and the size of the real screen 601 is determined based on this constraint. A cursor 152 is located in the center of the real screen 601. This state corresponds to FIG. 9 (e), and the actual screen 6
It does not change unless 01 is displayed outside the logical screen.

Next, for example, as shown in FIG. 9A, the logical screen 5
A case where the cursor is at the upper left corner [1,1] of 01 will be described. Also in this case, the cursor on the real screen 601 exists at the coordinate (10, 10). In FIG. 13, the actual screen 6
The area of the logical screen 501 displayed in 01 is [1- (10-1), 1- (10-1)] = [-8, -8] [1+ (20-10), 1- (10- 1)] = [11, -8] [1- (10-1), 1+ (20-10)] = [-8,11] [1+ (20-10), 1+ (20-10)] = [ [11, 11] surrounded by four points (black portions in FIG. 7), that is, [X, Y; −8 ≦ X ≦ 11, −8 ≦ Y ≦ 11]. This corresponds to FIG. 2A, and an area considered to have substantial continuity is expanded and displayed on the real screen 601.

In order to deal with the cases as shown in FIGS. 2 to 5, it is necessary to consider the following cases separately when setting the data on the logical screen for setting the actual screen to the actual screen. There is.

That is, the cursor position [a,
[b]] to the coordinates (10, 10) on the real screen, the coordinates [X, Y; a-9 ≦ X ≦ a on the logical screen are considered.
+10, b-9 ≦ X ≦ b + 10] is the coordinates (X +
10-a, Y + 10-b), and the data to be displayed there is determined by the following rules.

(1) In the case of 1≤Y≤40, the data of [X, Y] is displayed when 1≤X≤30. (Fig. 13 ・ 501) X = 0 or X = 31 or X = -1 or X = 3
When 2, the vertical frame is displayed. (FIG. 13/134, FIG. 14/144) When X ≦ −2, the data of [X + 32, Y] is displayed. (FIGS. 13 and 133) When X ≧ 33, the data of [X-32, Y] is displayed.

(2) When Y = 0 or Y = 41, a horizontal frame is displayed. (Fig. 13 ・ 134, Fig. 14 ・ 14
4) (3) When Y = -1, if there is the previous page of the logical screen with the cursor, a horizontal frame is displayed. (Fig. 13 ・ 13
4) (4) In the case of Y ≦ −2, if there is the previous page of the logical screen where the cursor is, when 1 ≦ X ≦ 30, the data of [X, Y + 42] is displayed. (Fig. 13/132) X = 0 or X = 31 or X = -1 or X = 3
When 2, the vertical frame is displayed. (Fig.13, 134) When X≤-2, the data of [X + 32, Y + 42] is displayed. (Fig. 13, 131) When X≥33, the data of [X-32, Y + 42] is displayed.

(5) When Y = 42, if there is the next page of the logical screen with the cursor, a horizontal frame is displayed.
(FIGS. 14 and 144) (6) In the case of Y ≧ 43, if there is the next page of the logical screen with the cursor, the data of [X, Y-42] is displayed when 1 ≦ X ≦ 30. (Figs. 14 and 143) X = 0 or X = 31 or X = -1 or X = 3
When 2, the vertical frame is displayed. (FIGS. 14 and 144) When X ≦ −2, the data of [X + 32, Y-42] is displayed. (Fig. 14, 142) When X ≧ 33, the data of [X-32, Y-42] is displayed.

(7) In the cases other than the above (1) to (6), since there is no data to be displayed, a diagonal line is displayed. (Fig. 1
6 and the hatched portion 161 in FIG. 17) FIG. 2A and FIG. 4 according to the above rules (1) to (7)
Examples of the display of (b) are shown in FIGS. 6 and 7, respectively.

As can be seen from these figures, in the portion on the left side of the cursor, data near the right end of the logical screen on which the cursor is located is displayed. Therefore, the sentence before and after the cursor point in FIG. 6 continues from the second line 501 on the right end 611 of the logical screen to 501. By fixing it to), it becomes "cursor turn", and the cursor position is "to".
Similarly, the sentence before and after the cursor point in FIG. 7 continues from the 8th line at the right end 711 of the logical screen to 601 and "to" 1 "W
"Invert by R", and the cursor position is "su".

Also in FIG. 7, the last line of the current page is
"It has been decided. 』, You can see that it is finished,
Further, after the screens 712 and 713 on the next page, it can be confirmed that a blank line is displayed, followed by "However, as SRD ..., At the start of transfer ...".

The procedure for constructing and displaying an actual screen based on the above rules will be described with reference to the flowcharts of FIGS. It can be said that this represents the rules (1) to (7) themselves. In this flowchart, the position of each square in a 20-character x 20-character area on the logical screen is checked based on the cursor position, and the data to be inserted in each square of the actual screen is determined based on that. .

First, the cursor moves to the coordinate [a,
b]. This is the coordinates of the real screen (10, 10)
When converted to, the 20 × 20 area on the logical screen becomes
[X, Y; a-9 ≦ X ≦ a + 10, b-9 ≦ Y ≦ b + 1
0]. Therefore, the coordinates of the grid of interest on the logical screen are set to [X, Y], and the initial values of X and Y are set to (a
-9). (B-9) is given. Further, 1 is given as an initial value of each of x and y of the coordinates (x, y) of the actual screen corresponding to [X, Y] (S181).

Next, it is tested whether or not the value of Y exceeds the upper limit (b + 10) (S182). If it exceeds, since the formation of the screen for the 20 × 20 area is completed, the created real screen is displayed (S183), the cursor is displayed at (10, 10), and the processing is completed (S18).
4).

If Y does not exceed the upper limit, it is tested whether the value of X does not exceed the upper limit (a + 10) (S
185). If it exceeds, the X value and the x value are returned to the initial values (first column), 1 is added to the Y value and the y value, and the next row is tested (S186).

If both X and Y are within the upper limit, it is tested whether the Y value of the square [X, Y] of interest is within the logical screen (S187). If it is, the value of Y is copied to the variable YY (S188), and the image forming procedure is called (S189). The variable YY is used for Y
This is because the value of is not touched unnecessarily.

If the value of Y is not within the logical screen, it is tested whether the frame should be drawn (S1).
90). If so, a horizontal line of the frame is drawn at the coordinates (x, y) on the real screen (S191), and the next column is tested.

If the value of Y is further outside it,
First, it is tested whether or not the frame line of the logical screen of the previous page should be drawn (S192). If so, it is tested whether the previous page exists (S193), and if it exists, a horizontal line of the frame is drawn at the coordinates (x, y) (S191). If it does not exist, a diagonal line indicating that there is no display data is drawn at (x, y) (S198).

If Y is not at the position of the frame line of the previous page, it is tested whether it corresponds to the previous page (S194).
If so, test if there is a previous page (S
195), if it exists, (Y + 42) is given as a variable YY (S196). This new coordinate [X, YY]
Are coordinates on the page immediately before the page on which the cursor is located. After giving YY, the image forming procedure is called (S
197).

If there is no previous page, a diagonal line indicating that there is no data is drawn in (x, y) (S198) and the next square is tested.

On the other hand, when the value of Y is neither in the logical screen where the cursor is nor in the page immediately before it, it is tested whether it is the page immediately after. First, it is tested whether the frame line of the immediately following page should be located (S199). If there is a frame line, it is tested whether there is a page immediately after (S200). If not, a diagonal line is drawn, and if there is a line, a horizontal line of the frame is drawn at (x, y).

If Y is not 42, that is, greater than 43, it is first tested whether there is a page that should be there (S201). If there is no data, the diagonal line (x,
Draw in y). If there is, set it as variable YY (Y-42)
Is given (S202). The coordinates [X,
YY] represents the position on the page immediately after the page where the cursor is located. Then, the image forming procedure is called (S203). When the data of the grid of interest is determined in this way, the frame and the part without data can be drawn as in the above (S204), and the part with data can be drawn by the procedure "image formation". Created in.

In the procedure "image formation", only the X-axis direction is considered.

First, it is tested whether the value of X is within the frame of the logical screen (S205). If it is, the data [X, YY] of the logical screen is given to the coordinates (x, y) of the actual screen. However, the target logical screen is step S
If it passes through 196, it is the page immediately before the cursor, and if it passes through step S202, it is the page immediately after. If neither is passed, it will be the page where the cursor is.
This also applies to steps S210 and S211.

If it is not within the logical screen, it is tested whether or not there is a frame line on the logical screen (S207). If so, a vertical line of the frame is drawn at (x, y) (S208). If not, it is tested which part of the logical screen X protrudes (S209). If X is 2 or less, that is, if it is a front portion, data is obtained from the opposite end and given to (x, y). (S210). If “NO” in the step S209, X is 33 or more, and it extends to the rear side. Also at this time, data is obtained from the end on the opposite side to the protrusion and given to the coordinates (x, y) on the real screen (S211).

The above are the rules (1) to (7) described above.
It is a flowchart created according to. With this procedure,
It is possible to efficiently display the image being operated and the images in the vicinity thereof on the display screen having a limited size. Moreover, it is possible to display not only the part physically close to the part being operated, but also the part logically continuous even if it is physically separated.

As described above, a plurality of logical screens such as the logical screens of the previous and subsequent pages and the pseudo logical screen displayed outside the logical screen are displayed on one real screen. Therefore, if the main logical screen (where the cursor is currently located) and other logical screens are distinguished by different colors, the man-machine interface will be further improved.

[0058]

Other Embodiments The word processor has been described in the above example, but it goes without saying that various editors (including graphic editors) of a computer can be similarly applied.

Further, the display capacity of the display is large, and even if the logical screens can be displayed at one time if it is intended to display, if the multi-window function which has been widely used recently is supported, the number of windows displayed becomes large. ,
Since the display capacity of one window is inevitably reduced, the same can be applied when the display area of each of those windows is considered to be the actual screen.

The present invention may be applied to either a system composed of a plurality of devices or an apparatus composed of a single device. Further, it goes without saying that the present invention can be applied to the case where it is achieved by supplying a program to a system or an apparatus.

[0061]

As described above, the image display method and means according to the present invention can always display the image of the portion focused on by the operator and its substantial peripheral portion, thus improving the work efficiency. Can be raised.

[Brief description of drawings]

FIG. 1 is a configuration of a word processor device according to an embodiment.

[Fig. 2]

[Figure 3]

[Figure 4]

FIG. 5 illustrates a relationship between a logical screen and an actual screen according to the embodiment.

[Figure 6]

FIG. 7 is a display example on the actual screen according to the embodiment.

[Figure 8]

FIG. 9 shows a relationship between a conventional logical screen and a real screen.

FIG. 10 shows a coordinate system of a logical screen.

FIG. 11 shows a coordinate system of an actual screen.

[Fig. 12]

[Fig. 13]

FIG. 14 shows a relationship between a logical screen and an actual screen according to the embodiment.

FIG. 15

FIG. 16

FIG. 17 is a display example on the actual screen according to the embodiment.

FIG. 18

FIG. 19

FIG. 20 is a flow chart of a screen display processing routine of the embodiment.

[Explanation of symbols]

101 ... Keyboard 102 ... Word processor body 103 ... Display 201.501 ... Logical screen 202 ・ 601 ... Real screen

Claims (6)

[Claims] 1. A determination step of determining a data area to be displayed centering on a desired point in the image data area, and a determination of an area out of the image data area of the areas determined in the determination step. An image display method comprising: a step; and an allocation step of allocating another area of the image data to an area determined to be protruding in the determination step. 2. The image display method according to claim 1, wherein the area determined in the determination step is smaller than the original image data area. 3. The image display method according to claim 1, wherein the assigning step assigns a logically continuous area. 4. A determination means for determining a data area to be displayed with a desired point in the image data area as a center, and a determination for determining an area out of the image data area among the areas determined by the determination means. An image display device comprising: means for allocating an area other than the area of the image data to the area determined to be protruding by the determining means. 5. The image display device according to claim 4, wherein the area determined by the determining means is smaller than the original image data area. 6. The image display device according to claim 4, wherein the assigning unit assigns logically continuous areas.