JP2550562B2 - Character display device - Google Patents

Description

The present invention relates to a character display device for editing and displaying a character string such as a sentence.

“Prior Art” With the spread of Japanese word processors and the like, it has become widespread to electronically create sentences, display them on a screen, and print them on recording paper by printers. .

The Japanese word processor which has been generally used conventionally uses a character display device for displaying a screen, and uses a device such as a line printer or a dot impact printer as a printer.

"Problems to be solved by the invention" For this reason, in many cases, vertical writing, which is the original Japanese expression format, cannot be performed due to mechanical restrictions. That is, although some printers can be used to perform vertical writing display on a recording sheet, those that perform vertical writing display on a display are not well known.

Further, even in a device that can display vertically on a recording paper by a printer or the like, only characters of the same type of character size can be vertically written, and characters of various character sizes and different line spacings can be used. I couldn't write the letters vertically. Moreover, in the process for vertical writing, it is necessary to devise such as rotating characters by 90 degrees (Japanese Patent Laid-Open Nos. 58-68092, 53-129919 and 60-2).
No. 00362, Japanese Patent Publication No. 57-52585).

The present invention has been made in view of the above points, and provides a character display device capable of vertically displaying a character string of a document or the like on a display or a recording sheet as it is, regardless of the type of the character. That is the purpose.

"Means for Solving Problems" The character display device of the present invention has a display unit and a control device for controlling the display position when displaying a character string vertically on the display unit. The apparatus sets a virtual reference line at a position where the character string should be displayed on the display unit and allocates the display position of each character so that the reference line coincides with the center of each character. In addition, specifically, for each character, a point on the center line when the character is divided into two halves in the vertical direction is set as a base point, and each character is displayed so that the base point overlaps the virtual reference line. It is preferable to allocate the positions.

[Operation] According to the above device, the virtual reference line for vertical writing display is set on the display unit, and the characters are arranged in order with the centers of the characters aligned with each other. Characters of different sizes can be displayed vertically on the display or the recording paper in a vertical format.

"Embodiment" FIG. 1 is a block diagram showing an embodiment of a character display device of the present invention.

This device uses a CPU (Central Processing Unit) 11 as a device for processing data. The CPU 11 is connected to each part of the device by a bus 12. Of these, the first storage unit 13 is a random access memory (RAM) for temporarily storing various data. The second storage unit 14 is a memory that stores, for all characters that can be handled by this vertical writing character display device, the base point or width of each character, the height, and the bit pattern. Here, the base point refers to a point on the center line when a character is divided into two equal parts by a vertical line. Specifically, for example, it is numerical data showing a value of half the width of the character. is there.

The program storage device 15 is a device that stores a program for controlling various operations of the vertically-written character display device, and in this embodiment, a magnetic disk is used as a storage medium. The display control device 16 is a device for controlling the display on the display 17, and has a display RAM built therein. The display 17 is a device capable of displaying various images with a bit pattern. The mouse 18 is a pointing device, and by moving it on a desk, the cursor can be moved on the display 17 to create image information and give various instructions. The keyboard 19 is a character or symbol (hereinafter collectively referred to as a character)
It is used for inputting characters, etc., and the size of characters and line spacing can be set at the time of inputting. The printer 20 is a recording device such as a known laser printer.

In this embodiment, the CPU 11 corresponds to the control device for controlling the display position of the vertical writing display in the present invention, and corresponds to the display unit for displaying the character on the display or printer.

Now, in this embodiment, for example, each character is input by operating each key on the keyboard 19. The information required to display a character is (i) a character code indicating the type of character, (ii) line spacing, (iii) base point or character width, and (iv) the height of each character. .
The character code corresponding to the character input by the key operation is sequentially written in a predetermined storage area of the first storage unit 13 line by line.

FIG. 2 shows one line (“0” to “n”) in the first storage unit 13.
(Character string up to) is represented.

The character code 21 read from this storage area is sequentially referred to the storage contents of the second storage unit 14, and the arrangement position of each character is obtained. The character arrangement position information is written in the work area of the first storage unit 13.

(Embodiment 1) FIG. 3 shows a configuration example of a storage area of the second storage unit 14.

In this embodiment, a base point 22, a height 23, and a bit pattern 24 are stored in this storage area in association with each other for each character code 21.

Based on the data read from this storage area, the text is displayed vertically on the display 17, or printed by the printer 20 and displayed vertically on the recording paper. In this case, the printer corresponds to the display device of the present invention.

FIG. 4 shows an example of character string display processing according to this embodiment. Here, the X-axis direction is the lateral direction of the display unit, and
The axial direction is the vertical direction of the display unit.

In the figure, each character 25, 26, 27 is a character with a different size.
8, 29, 30 are set. On the other hand, a virtual reference line 31 is set in the portion where these character strings are to be displayed, and each character is assigned so that the base points 28, 29, 30 of each character overlap the virtual reference line 31. .

The outline of the vertical writing display has been described above. Next, specific data processing for performing such display will be described with reference to FIG.

First, the CPU 11 clears both the area for storing the calculated value i of the counter and the area for storing the value y of the Y coordinate in the first storage unit 13 and sets them to "0" (step). Here, the count value i of the counter represents a so-called pointer position that indicates which character code in the storage area of the first storage unit 13 is designated as the processing target. Specifically, it is a numerical value from "0" to "n" in FIG.

Next, the CPU 11 substitutes the character code designated by the pointer for the conversion number (step). Then, the storage area in the second storage unit 14 is searched using the character code of this variable as a key, and the base point, height, and bit pattern corresponding to this character code are read (step). Then, the write start point is calculated (step).

 That is, specifically, the following calculation is performed here.

First, for the character 25 in Fig. 4, first set the base point x
Overlap at the position of = 0, y = 0. At this time, the writing start point is determined to be (-A, -B) by inserting a negative value of the base point value A into the X coordinate and a negative value of the height value B into the Y coordinate. The writing start point is usually at the lower left corner of the character, and the bit pattern 24 (FIG. 3) is started from here to display the character.

In the example of FIG. 4, the base point 28 is shifted downward from the position of x = 0, y = 0 by a predetermined character interval, but this will be ignored here for description. The process for adjusting the character spacing will be described later.

Now, returning to FIG. 5, the writing start point is calculated (step), and when the writing of one character is completed (step), the Y coordinate of the base point position of the next character 26 (FIG. 4) is calculated ( Step).

The base point position of the next character 26 is the height B at the base point position of the character 25.
Is calculated by adding. That is, as shown in FIG.
The base point 29 of the next character 26 is superimposed on the coordinates (0, -B). In this case as well, the character spacing is ignored. Therefore, it is sufficient to substitute -B for Y here. Then, the pointer position is advanced by "1" (step). Next, it is judged whether or not the processing for one line is completed (step), and if there is the next character, the process returns to the step again.

When the constant character spacing is set, the position of each character in the Y direction is adjusted after the processing of FIG. 5 is completed. After such an allocation process is completed, the bit pattern of one line of characters stored in the first storage unit 13 is displayed on the display 17 via the display control device 16.

In the above examples, the base point is set to the upper edge of the character,
If it is on the center line of the character, it may be set at another position such as the upper edge or the center of the character. Also, the display is not a display,
It may be configured by a printer.

(Embodiment 2) Next, another embodiment of the present invention will be described with reference to FIG.

FIG. 6 shows another configuration of the storage area of the second storage unit 14 (FIG. 1).

Here, for each character code 21, a horizontal width 22 ', a height 23, and a bit pattern 24 of the character are stored in association with each other.

Based on the data read from this storage area, the document is displayed vertically on the display 17, or is printed by a printer (not shown) and displayed vertically on the recording paper.

FIG. 7 shows the display processing contents of the character contents according to this embodiment. Also in this case, the X-axis direction is the horizontal direction of the display unit and the Y-axis direction is the vertical direction of the display unit. In this embodiment, characters are arranged in the vertical writing format in the fourth quadrant of the XY coordinate system.

Specific data processing for displaying the following will be described with reference to FIG.

First, the CPU 11 clears both the area for storing the count value i of the counter and the area for storing the value y of the Y coordinate in the first storage unit 13 and sets them to "0" (step). Here, the count value i of the counter indicates the pointer position described above.

Next, the CPU 11 assigns the character code designated by the pointer to the variable (step). After that, the storage area in the second storage unit 14 is searched using this character code as a key,
The width, height, and bit pattern of the character corresponding to this character code are read (step). Next, the write start point is calculated.

First, the Y coordinate is set from the height of the character (step). That is, in the initial state of step, the coordinate value y = 0 (origin) is set (point P1 in FIG. 7). Since the writing start point is the point P2 in FIG. 7, the value of the set Y coordinate can be obtained by (y-height). Of course, the value of the Y coordinate is negative.

Thereafter, it is determined whether the width W of the line to be arranged is equal to the width of the character to be displayed (step).

When it is determined that the width W of the line is equal to the width of the character in the step, "0" is substituted for the value x of the X coordinate. From the above, the coordinates (x, y) in P2 of FIG. 7 are obtained. You can start writing the first letter from here.

On the other hand, if it is determined in step that the width W of the line and the width of the character are different, the difference between the two widths is calculated.
The calculation result is stored in the difference storage area in the first storage unit 13 (step). At this time, the line width W
If is larger than the width of the character, the difference value is positive, and if the line width W is smaller, the difference value is negative.

The magnitude relationship between the width W of the line and the lateral width of the character will be described with reference to FIGS. 9 and 10. The square areas in these figures represent the size of each character. Further, in these figures, the broken line is a virtual reference line for aligning the centers of the characters and indicates the center of the line.

First, FIG. 9 shows a case where the width W of the line is larger than the widths of all the characters. In this case, all of these characters will be displayed without omission.
On the other hand, FIG. 10 shows that for some characters with a line width W,
The case is smaller than the width of the character. In this case, if the width W of the line is fixed to the current state,
Due to the relationship with adjacent lines, the part of each character that exceeds this width will not be displayed.

CPU11 calculates the value of the obtained difference by half, and this is X
Let the coordinate value be x (step). If the difference value is positive, a character smaller than the line width W, such as the character 31 in FIG. 7, is displayed. In this case point P3
Is the writing start point.

On the other hand, when the value of the difference is negative, the point P4 or the point P4 'indicates the writing start point as shown by the character 32 in FIG.

When the coordinate values x and y are obtained as described above, address conversion is performed (step). This address conversion is conversion from the XY coordinate system to the address system for the bit pattern display area of the first storage unit 13. In this way, when the coordinates of the character display start position are set in the first storage unit 13, the bit pattern for one character obtained in step is transferred to the first storage unit 13, and the set position is used as a reference. This is set as a bit image as (step). After that, the count value i of the counter is incremented by 1 (step). At this time, the CPU 11 determines whether or not the pattern transfer for one line has been completed (step), and if not completed, the same work is repeated for each character (step-).

When the bit pattern is formed for one line of characters, the CPU 11 performs the same operation for the next one line of input. During this time, the bit pattern for one row formed in the first storage unit 13 is sent to the display RAM in the display control device 16 and its contents are added. The information written in the display RAM will be sequentially displayed on the display 17. The adjustment of the character spacing is executed during this period.

Although the display operation by the display 17 has been described above, a vertically written text can be printed out by the same operation, or can be converted into a text file (not shown) and read and displayed at any time. Designation of screen display and printing in this apparatus can be performed by using the mouse 18, for example, and partial change work of the character size in a sentence created once can also be performed by using the mouse 18. The change of the display position when the character size is changed can be easily achieved by using the changed character code and performing the work already described.

"Effects of the Invention" As described above, according to the present invention, the virtual reference line is set in the direction in which vertical writing is performed, and each character is arranged so that the center of each character pattern is located on the virtual reference line. Even if the sizes are different, they can be sequentially arranged by a simple process, and the character arrangement is natural and easy to read.

[Brief description of drawings]

The drawings are for explaining one embodiment of the present invention, in which FIG. 1 is a block diagram showing a main part of a circuit configuration of a vertical character display device, and FIG. 2 is a memory of a first storage unit. FIG. 3 is an explanatory diagram of the stored contents of the area, FIG. 3 is an explanatory diagram of the stored contents of the storage area of the second storage unit, FIG. 4 is an explanatory diagram showing the display state of vertical writing characters, and FIG. FIG. 6 is a flow chart showing the flow of the arrangement work, FIG. 6 is an explanatory view showing another embodiment of the storage contents of the storage area of the second storage unit, and FIG. 7 is another explanation explaining the display state of vertical writing characters. FIG. 8 is an explanatory view of the embodiment, FIG. 8 is a flow chart showing the flow of the arrangement work of the vertically written characters, and FIG. 9 shows the display state of each character when the line width is set larger than the width Fig. 10 is an explanatory diagram showing the appearance of each character when the line width is set smaller than the character width. . 11 ... Control device, 13 ... First storage unit, 14 ... Second storage unit, 15 ... Program storage device, 16 ... Display control device, 17 ... Display (display unit), 20 ... Printer, 28, 29, 30 …… Base point, 31 …… Virtual reference line.

Front Page Continuation (72) Inventor Norihiro Isogai 3-16-6 Nishi-Shinjuku, Shinjuku-ku, Tokyo West Shinjuku Mizuno Building, Fuji Xerox Co., Ltd. (72) Inventor Tetsuo Akimoto 3-16-6 Nishi-Shinjuku, Shinjuku-ku, Tokyo Nishi Nishi Shinjuku Mizuno Building Fuji Xerox Information System Co., Ltd.

Claims (2)

(57) [Claims] 1. A display unit, and a control device for controlling the display position when a character string is vertically displayed on the display unit,
This control device sets a virtual reference line at a position where the character string is to be displayed on the display unit, and allocates the display position of each character so that the reference line coincides with the center of each character. Character display device. 2. For each character, a point on the center line when the character is bisected by a vertical line is set as a base point, and the display position of each character is set so that the base point overlaps the virtual reference line. The character display device according to claim 1, wherein allocation is performed.